TABLE OF CONTENTS /MC LC GII THIU CHUNG / GENERAL .5 Cỏc cn c lp bin phỏp thi cụng / Basis of construction method Khỏi quỏt chung v cụng trỡnh thi cụng / Overview on the construction project 0.1.1 Khỏi quỏt chung / General 0.1.2 Tớnh cht cụng trỡnh / Nature of the project 0.1.3 Khi lng cụng vic v cỏc tiờu ộp cc: / Volume of work and pile driving criteria .6 YấU CU K THUT CA VT LIU tI CễNG TRNG / TECHNICAL SPECIFICATION OF MATERIALS IN THE SITE Thuyt minh ngun gc cung cp vt liu / Origin of materials Cht lng vt t vt liu ỏp ng yờu cu HSYC / Quality of materials satisfactory to the Request Document: Gii phỏp huy ng kt vt liu v thit b / Mobilizing, gathering materials and equipment : H THNG T CHC V NHN S / ORGANIZATION AND PERSONNEL 11 S h thng t chc ca nh thu ti xng xn xut / Diagram of organization of the contractor at the workshop : 11 S h thng t chc ca nh thu ti cụng trng (1) / Diagram of organization of the contractor at the site (1) 11 0.1.4 Ch huy trng / Site manager 12 0.1.5 Ch huy phú cụng trỡnh (ph trỏch thi cụng) / Assistant site manager (in charge of construction) .14 0.1.6 K s ph trỏch thi cụng / Site Engineer 16 0.1.7 Cỏn b an ton / Safety officer 19 0.1.8 Cỏn b ph trỏch bn v hon cụng, lng / Officer in charge of as-built drawings, quantity .20 0.1.9 Cỏn b trc c / Survey officer 21 0.1.10 Cỏc t trng / Team leaders 22 0.1.11 Cụng nhõn / Worker 23 GII PHP K THUT cho CC CễNG TC/HNG MC CH YU / TECHNICAL CONCEPTIONS TO KEY WORKS/COMPONENTS 25 T chc mt bng cụng trng / Organization of site plan: 25 0.1.12 Mt bng b trớ cụng trỡnh tm, thit b thi cụng, kho bói kt vt liu, rỏc thi / Site layout for temporary works, construction machinery, materials warehouse and scrapyard : 25 0.1.13 B trớ cng vo, ro chn, bin bỏo / Gateway, fence, warning sign 27 PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: 0.1.14 Cp in, cp nc, thoỏt nc, liờn lc thi cụng / Power supply, water supply, drainage, communication in the course of construction 27 Thi cụng ộp cc / Pile driving: 28 0.1.15 Danh mc mỏy múc thit b phc v thi cụng / List of machines and equipment 28 Bng Danh mc mỏy múc thit b / Table List of machines and equipment 28 0.1.16 Kh nng huy ng thit b d phũng / Mobilizing the standby equipment: 30 0.1.17 Bin phỏp m bo thit b hot ng n nh / Measures to ensure stable operations of equipment: .31 BIN PHP, QUY TRèNH QUN Lí THI CễNG / METHOD, PROCESS OF CONSTRUCTION 32 Qun lý cht lng / Quality control: 32 0.1.18 Qun lý cht lng vt t / Quality management of materials: .32 0.1.19 Qun lý cht lng cỏc cụng tỏc thi cụng / Quality management of construction: .34 Cụng tỏc trc c / Surveying work: 34 Cụng tỏc chung chuyn v kờ xp cc / Transiting and stowing the piles : 37 Cụng tỏc ộp cc / Pile driving : 38 0.1.20 Bo qun vt liu, cụng trỡnh dng thi cụng, ma bóo/ Maintaining materials, works in case of work suspension or storm 41 Dõy hn / Welding rod 42 Mỏy múc / Machinery 42 Bn mó / Plate : 43 0.1.21 Sa cha h hng v bo hnh cụng trỡnh / Defect remedy and warranty : 43 0.1.22 Qun lý ti liu, h s, bn v hon cụng, quyt toỏn / Management of documents, files, as-built drawings, final settlement : 43 Thnh phn h s lu tr v ni lu tr / Composition of archival documents and archiver : 45 Hỡnh thc, quy cỏch lu tr h s / Format, form of archival documents : 46 -Trang 2- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: Trỏch nhim vic lu tr h s thit k, bn v hon cụng / Responsibility for archiving the design document, the as-built drawing : 47 0.1.23 T chc o to v kim tra an ton lao ng / Labor safety training and inspection 48 0.1.24 Bin phỏp bo m ATL cho tng cụng on thi cụng / Labor safety measurements for each construction stage 50 An ton cụng tỏc cu / Safety in crane works 50 An ton cụng tỏc ộp cc / Safety in pile driving works 51 An ton cụng tỏc hn in, hn ct hi / Safety measurements to be applied in electric and gas welding and cutting 60 0.1.25 Phũng chng chỏy n trờn cụng trng / Fire and explosion prevention 62 0.1.26 An ton giao thụng trờn cụng trng / On-site traffic safety 63 0.1.27 Bo v an ninh cụng trng, qun lý nhõn lc, thit b / Site safeguarding, personnel and equipment management .64 Qun lý mụi trng /Environmental protection 65 0.1.28 Cỏc bin phỏp gim thiu / Remedies 65 0.1.29 Ting n / Noise 65 0.1.30 Bi, khúi / Dust and smoke 66 0.1.31 Rung / Vibration .67 0.1.32 Kim soỏt nc thi cỏc loi / Waste water management .68 0.1.33 Kim soỏt rỏc thi, nh v sinh cụng nhõn trờn cụng trng / Waste management, on-site toilets 68 TIN THI CễNG / CONSTRUCTION SCHEDULE 70 Tng tin thi cụng / Overall construction schedule 70 Biu huy ng nhõn lc, vt liu, thit b chớnh / Chart of main personnel, materials and equipment mobilization 71 Bin phỏp bo m tin thi cụng / Methods to ensure construction schedule .71 PHN TI LIU NH KẩM V CC BIU MU / ATTACHMENTS AND FORMS -Trang 3- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: DANH MC HèNH V / TABLE OF FIGURES S t chc ca Nh thu ti cụng trng / Figure Organization Diagram of the Contract at the site 11 Quy trỡnh qun lý cht lng vt t, vt liu / Procedure of quality management of materials 33 Cụng tỏc cu h v chung chuyn cc / Unload and transit the pile with crane 38 Hỡnh Quy trỡnh qun lý ti liu, h s / Procedure of document administration 45 -Trang 4- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: GII THIU CHUNG / GENERAL Cỏc cn c lp bin phỏp thi cụng / Basis of construction method H s yờu cu cho giỏ cnh tranh Request document for competitive offer Ti liu k thut Technical document Nng lc ca Nh thu Bidders qualification Khỏi quỏt chung v cụng trỡnh thi cụng / Overview on the construction project 0.1.1Khỏi quỏt chung / General Cụng trỡnh Nh mỏy nhit in Thỏi Bỡnh nm trờn khu t ti Thụn Chớ Thin, xó M Lc, huyn Thỏi Thy, tnh Thỏi Bỡnh Thai Binh Thermal Power Plant project lies in the land area of Chi Thien hamlet, My Loc commune, Thai Thuy district, Thai Binh province Gúi thu gm cỏc hng mc: Thit k, cung cp, thi cụng cc 450x450mm múng lũ hi, gian Bunker; Khu vc turbin Mỏy nghin than t mỏy s v t mỏy s The package consists of : design, supply, build pile 450x450mm, boiler foundation, bunker section ; Turbin section coal breaker of generator sets no and no Thuyt minh bin phỏp thi cụng ca liờn danh gia Cụng ty CP Bờ tụng & Xõy dng VINACONEX Xuõn Mai, Cụng ty TNHH Bờ tụng & Xõy dng Minh c v Cụng ty CP Amaccao din gii cỏc hng mc: Thit k, cung cp, thi cụng cc 450x450mm ca ca cụng trỡnh The construction method statement prepared by the joint venture of VINACONEX Xuan Mai Concrete and Construction Joint Stock Company, Minh Duc Concrete and Construction Company Limited and Amaccao Joint Stock Company interpretes the following components: design, supply, build pile 450x450 0.1.2Tớnh cht cụng trỡnh / Nature of the project Cụng trỡnh Nh mỏy nhit in Thỏi Bỡnh c xõy dng trờn din tớch t 154,127ha, cụng sut nh mỏy 1.200MW gm 02 t mỏy Cu hỡnh t mỏy gm 01 lũ hi + 01 tuabin + 01 mỏy phỏt Sau thi cụng xong s phỏt in vi nng xut 7.200 t Kwh/nm Vi yờu cu nghiờm ngt ca Ch u t v Tng thu EPC ra, cỏc -Trang 5- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: v k thut, cht lng phi c bo m tuyt i cht ch nhm tng kh nng an ton s dng Thai Binh Thermal Power Plant project will be built in area of 154,127 hectares with capacity of 1,200MW, consisting of two generator sets Each generator set is configured by 01 boiler + 01 turbine + 01 generator After completed construction, it will generate with power of 7,200 billion KWh/year With strict requirements of the Employer and the EPC contractor, technique and quality should be absolutely assured to reinforce safety in use 0.1.3 Khi lng cụng vic v cỏc tiờu ộp cc: / Volume of work and pile driving criteria Khu vc turbin v nh iu khin trung tõm 1; s : 1250+201 cc Turbin building foundation and main control building foundation: 1250+201 pile -Trang 6- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: YấU CU K THUT CA VT LIU TI CễNG TRNG / TECHNICAL SPECIFICATION OF MATERIALS IN THE SITE Thuyt minh ngun gc cung cp vt liu / Origin of materials Ton b vt t sn xut v thi cụng c nhp khu t nc ngoi hoc sn xut nc cú ngun gc rừ rng, cú u chng ch cht lng ca nh sn xut theo quy nh, c th nh sau : All the materials manufactured and built are imported from foreign countries or produced at home They all have the demonstrated origin with sufficient certificates of quality issued by their manufacturers according to the regulations, as follows : a Vt liu phc v cụng tỏc sn xut cc ti nh mỏy Materials for pile production at the plant b Dõy hn : Welding rod : Dõy hn cú hp ng (tha thun) cung cp, phõn phi hp l Welding rods are subject to valid supply, distribution contracts (agreements) Cú h s vt liu Accompanied with the materials documents (see the attachment) c Thộp bn mó / Steel plate : Thộp hỡnh, thộp tm cú hp ng (tha thun) cung cp, phõn phi hp l Steel shape, steel plate are subject to valid supply, distribution contracts (agreements) Cú h s vt liu Accompanied with the materials documents (see the attachment) Cht lng vt t vt liu ỏp ng yờu cu HSYC / Quality of materials satisfactory to the Request Document: Cn c yờu cu ca H s xut, cỏc yờu cu v cht lng theo cỏc tiờu chun hin hnh Tt c cỏc vt liu phc vc cụng tỏc sn xut, thi cụng c nh thu la chn k cng, kim tra thụng qua cỏc chng ch cht lng ca nh sn xut, thớ nghim vt liu theo cỏc tiờu chun yờu cu ca d ỏn, c th nh sau : Pursuant to the Request Document, quality requirements should conform to current standards All the materials used in production, construction should be carefully tested, -Trang 7- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: checked by the contractor by means of manufacturers quality certificates, materials tests in compliance with given standards of the project, in particularly : a Vt liu phc v cụng tỏc sn xut cc ti nh mỏy Materials used to build pile at the factory b Dõy hn : Welding rod Yờu cu k thut u vo ca dõy hn phi phự hp vi cỏc tiờu chun: Input specifications of welding rod must conform to standards below AWS D1.1 BS 5135 TCVN 62596: 2003 c Thộp bn mó / Steel plate : Yờu cu k thut u vo ca thộp hỡnh, thộp tm phi phự hp vi cỏc tiờu chun Input specifications of steel shape, steel plate must conform to standards below: TCVN 170:1989 Kt cu thộp Gia cụng, lp rỏp v nghim thu Yờu cu k thut TCVN 170:1989 Steel structure Fabrication, assembly, check and acceptance Technical Specification TCVN 5709:1993 Thộp cacbon cỏn núng dựng cho xõy dng Yờu cu k thut TCVN 5709:1993 Hot-rolled carbon steel for construction Technical Specification V cỏc tiờu chun ASTM, BS & JIS h thng qun lý ISO 9001 Standards ASTM, BS & JIS within management system ISO 9001 Gii phỏp huy ng kt vt liu v thit b / Mobilizing, gathering materials and equipment : a Cụng tỏc sn xut cc Pile fabrication b Tp kt vt liu ti cụng trng : Gathering the materials in the site -Trang 8- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: Cn c vo h s thit k, nh mc tiờu hao vt t nh thu xõy dng Nh thu tớnh toỏn c ton b vt t cn thit cho cụng tỏc thi cụng (Cú d phũng thờm lng vt t nht nh) Based on the design document, rated consumption of materials by construction contractor, the contractor will calculate necessary quantity of materials for the building (reserving a certain additional quantity) Nh thu ký hp ng vi cỏc n v cung cp tha c cỏc yờu cu v cht lng v tin ca d ỏn The contractor contracts with supplier satisfying requirements on quality and progress of the project Vt liu a n cụng trng c ly theo t t theo tin thi cụng thụng qua cỏc n hng v c kim tra nghim thu v nhp kho ti cụng trng Materials carried to the site will be received as per stage of construction progress via purchase orders and being checked, accepted and warehoused at the site Kho cha vt liu Nh thu s dng l h thng container kho m bo lu tr c an ton v m bo cht lng The contractors materials warehouses are the storage containers to ensure safe storage and quality c Tp kt thit b / Gathering the equipment : Thit b thi cụng chớnh bao gm : Main construction equipment includes : - Mỏy ộp cc Robot: 800 tn : 06 cỏi Robot pile driver 800 tons : 06 - Cu xớch phc v 40-50 tn : 03-04 cỏi Crawler crane 25-40 tons : 03 - 04 - Mỏy phỏt in d phũng 200 KVA : 01 cỏi Standby generator 200 KVA : 01 - Mỏy kinh v :06 cỏi Theodolite : 06 - Mỏy xỳc : 02 cỏi -Trang 9- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: Excavator: 02 - Mỏy trc c (Ton c v thy bỡnh) : 03 b Geodetic measuring instrument (Tachometer and leveler) : 03 Tt c mỏy múc thit b u c a n cụng trng, lp t chy th v nghim thu trc thi cụng All the materials shall be carried to the site, and then installed, commissioned and accepted before being used in construction work -Trang 10- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: In order to stop machine, operators must move the machine to even ground, lowers outriggers, neutralize all control sticks before powering off the machine * Vệ sinh máy sẽ, ghi sổ nhật trình để bàn giao cho ca sau trớc nghỉ Operators must clean the machine and take notes on shift logs before leaving e An ton lờn xung, vo mỏy / Safety measurements to be applied when moving in/out of machine * Khi lên xuống máy thang luôn hớng mặt vào máy While using ladders to get in/out of machine, all personnel must face the machine * Các bậc thang tay vịn phải chắn, không dính dầu mỡ chất gây trơn trợt All steps and handrails must be firm and free of oil or other slippery materials * Cấm lên xuống vào máy máy di chuyển, quay, nâng lên All personnel are prohibited from get in/out of machine when the machine are moving, rotating of lifting f An ton di chuyn mỏy / Safety measurements to be applied when moving machine * Trớc di chuyển máy, phải quan sát mặt xem có đảm bảo an toàn để di chuyển hay không : tình trạng mặt bằng, chớng ngại vật đờng di chuyển, đặc biệt ý đến ngời làm việc xung quanh gầm máy; cáp điện động lực, dây dẫn điện máy móc, dụng cụ xung quanh gầm máy Before moving machine, operators must inspect safety conditions: ground conditions, obstacles along moving routes, personnel working around and under the machine, conditions of power cables and other equipment installed around and under the machine * Trớc bắt đầu di chuyển trình di chuyển máy, ngời vận hành phải thống tín hiệu với ngời xi nhan tuân theo tín hiệu ngời xi nhan Ngừng di chuyển máy có tín hiệu báo nguy hiểm, dù tín hiệu phát Before and during moving machine, operators must pay attention to signals sent by their assistants and must follow assistants instructions Machine must be stopped immediately when danger signals are issued, regardless of sources of signals * Trong máy di chuyển quay, cấm nguời phạm vi di chuyển bên dới đối trọng -Trang 57- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: All personnel are prohibited from staying within moving area of machine or under counterweights while the machine are moving or rotating * Khi quay đờng trợt chân ngắn, phải chắn không va chạm vào đờng trợt chân dài No impact into or with long-leg slipway when the short-leg slipway is rotating * Khi di chuyển chân dài tay điều khiển hoạt động đồng thời When the long-leg slipway is moving, all the control arms are working concurrently * Giữ cho thân máy nằm ngang trình di chuyển thẳng đứng Nếu bốn xilanh thủy lực di chuyển đứng không hoạt động đồng ( phạm vi chênh lệch cần nhỏ 100mm) gây nguy hiểm cho thân máy Body of main machine must be kept horizontal while being moved vertically If the four vertical-moving hydraulic cylinders not operate synchronously (differences must be less than 100mm), body of main machine may be in danger conditions g An ton lm vic vi cỏc ng ng v du cú ỏp sut cao / Safety measurements to be applied when working with pressurized oil and pipes * Trong máy làm việc, dầu động cơ, dầu hộp số, dầu thủy lực bị nóng Khi động cơ, hộp số, ống dẫn, phận khác bị nóng Cẩn thận kẻo bỏng tiếp xúc với phận When machine are running, machine oil, transmission oil and hydraulic oil shall be hot, which heats engines, transmission boxes, pipes and other machine parts Therefore, all personnel must be careful to avoid burns while working near these parts * Kiểm tra lỗ rò bìa, cẩn thận bảo vệ tay thân thể tiếp xúc với dầu áp suất cao Không dợc dùng tay trần để kiểm tra lỗ rò dầu có áp Operators should use carton boards to detect leaks, protect their arms and bodies when contacting high pressure oil Operators are prohibited from using bare hands to inspect pressurized oil leaks * Dầu áp suất cao bắn vào ngời gây nguy hiểm Nếu bị dầu bắn vào da, cần phải làm vòng vài giờ, không gây hại cho da Pressurized oil may be blown onto human bodies and cause health risks If any oil is blown onto your skin, oil must be removed within a couple of hours to prevent harmful effect on skin -Trang 58- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: * Không đợc gia nhiệt, hàn cắt ga trực tiếp lên đờng ống dầu có áp Tránh việc gia nhiệt, hàn cắt ga gần đờng ống dầu có áp chất dễ cháy khác Pressurized oil pipes must not be heated, welded or cut by gas welders and/or gas cutters All personnel must avoid heating, welding or cutting actions using gas welders and/or gas cutters when working near pressurized oil pipes or other flammable materials Việc gia nhiệt, hàn cắt đờng ống dẫn dầu đợc tiến hành sau xả hết dầu làm chất tẩy không cháy Heating, welding or cutting of oil pipe can only be conducted after oil is removed and the pipes are cleaned by non-flammable detergent Nếu cần gia nhiệt, hàn cắt ga cần phải thực gần đờng ống dầu áp lực, phải che chắn vật liệu chịu nhiệt để bảo vệ ống If it is required to conduct heating, welding or cutting actions near pressurized oil pipes, the pipes must be covered by heat-resistant materials h An ton sa cha bo dng mỏy / Safety measurements to be applied when repairing and maintaining machine * Việc tháo lắp, sửa chữa bảo dỡng đợc tiến hành dới giám sát Cán kỹ thuật máy nghỉ, áp suất dầu thủy lực hạ xuống 0, dầu phận máy nguội Nghiêm cấm tiến hành sửa chữa, bôi trơn hay bảo dỡng máy làm việc All assembling, repairing and maintaining of machine must be conducted under supervision of designated technical officials when the machine is off, hydraulic oil pressure is at zero and machine parts are cool All works of repairing, lubricating or maintaining are prohibited from being conducted when machine is running * Việc sửa chữa bảo dỡng phải đợc tiến hành tuân theo quy trình quy định phần (( Sửa chữa bảo dỡng )) All repairing and maintaining of machine must be conducted in compliance with instructions specified in Repair and maintenance; * Sau sửa chữa bảo dỡng, phận máy phải đợc kiểm tra, lắp ráp, hiệu chỉnh với chất lợng tốt, đảm bảo hoạt động điều kiện tiêu chuẩn After repairing and maintaining, all machine parts must be inspected and assembled, and the machine must be calibrated to ensure good operations under standard conditions * Khi sơn bị nóng hàn phơng pháp gia nhiệt khác, sinh khí độc bụi Cần phải làm sơn trớc hàn gia nhiệt phơng pháp sau : -Trang 59- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: When paint is heated by welding or other heating actions, toxic gases and dust may be created Therefore, operators must remove all paint before welding or heating by either Cọ sơn giấy ráp máy mài, làm việc nhớ đeo trang để tránh hít phải bụi Using sandpapers or machine files to remove paint The operators must wear facemasks to avoid inhaling dust Rửa sơn chất tẩy, sau rửa lại xà phòng nớc Trớc hàn gia nhiệt, phải để 15 phút cho chất tẩy rửa bay hết Using paint removal solutions, then cleaning parts with soap and water; waiting at least 15 minutes for removal solutions to evaporate before welding or heating Công việc làm sơn cần phải thực nơi cửa mở nơi thông thoáng tốt Paint removal actions must be conducted in rooms with opening doors, well ventilated or open areas An ton cụng tỏc hn in, hn ct hi / Safety measurements to be applied in electric and gas welding and cutting Việc vận hành máy hàn điện hàn cắt phải tuân theo quy định ATLĐ & VSLĐ Công ty ban hành, sau trích dẫn số quy định : Operations of electric welders and gas cutter/welders must be incompliance with regulations of labor safety and sanitation issued by the Company, of which a number of articles are listed below : - Chỉ ngời có chứng nghề hàn đợc vận hành máy hàn Only personnel having welding qualifications are allowed to use welders - Chỉ có thợ điện có chứng nghề đợc đấu nối điện cho máy hàn điện Only electricians having professional qualifications are allowed to connect power sources to welders - Xem kỹ sổ giao ca nhật trình máy trớc bắt đầu công việc All operators must carefully inspect shift logs and machine logs before starting their work - Trớc cho máy làm việc : Before starting machine : -Trang 60- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: Đối với máy hàn điện, kiểm tra mặt tình trạng kỹ thuật máy : Đờng dây cấp điện, dây hàn kìm hàn, tình trạng nối đất khả cách điện, tình trạng mặt không gian làm việc, trang bị phơng tiện bảo vệ cá nhân Electric welder operators must inspect all technical conditions of the machine, including power input cables, welding rods and cables, grounding connection, insulation, conditions of ground and working space, personal protective clothing and equipment, etc Đối với thiết bị hàn hơi, phải kiểm tra độ an toàn chai gas chai ô xy, phận cung cấp gas ôxy từ chai đến mỏ hàn cắt, tình trạng mỏ hàn cắt, khoảng cách chai ôxy chai gas (không đợc nhỏ 10m) Gas welder operators must inspect safety conditions of gas and oxygen cylinders, gas distribution system, conditions of gas nozzles, and distance from gas cylinders and oxygen cylinders (not less than 10 meters), etc - Trong trờng hợp làm việc hàn cắt khu vực với hàn điện phải kiểm tra khoảng cách an toàn từ chai gas thiết bị hàn cắt đến dây dẫn hàn điện (không đợc nhỏ 5m) từ chai gas đến lửa hàn (không đợc mhỏ 10m) In case electric welders and gas welders are operated together in one area, distance from gas cylinders to power cables must not less than meters and from gas cylinders to welding sparks must not less than 10 meters - Đóng điện máy hàn điện, kiểm tra tình trạng hoạt động không tải máy trớc làm việc thức Electric welder operator should power on the welders and check the machine in no-load condition before starting welding work - Cấm sửa chữa máy hay đấu nối, tháo dỡ đờng điện máy có điện It is not allowed to repair electric welders or connecting/removing power connection/cables when electric welders are powered - Cấm sửa chữa phận có áp nh ống dẫn, hay vặn vào, tháo phận van chai cha đóng van (kim đồng hồ áp suất cha số 0) It is not allowed to repair pressurized parts such as pipes or valves when valves are not closed (readings on pressure meters are not at zero) - Cấm để chung chai ôxy chai gas (khi gas) vận chuyển nh bảo quản -Trang 61- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: It is not allowed to place oxygen cylinders together with gas cylinders while the cylinders are being moved or stored - Không đợc để máy hàn điện trời mà che chắn trời có ma Cấm làm việc hàn điện trời có ma It is not allowed to leave electric welders under rain without any cover It is not allowed to operate electric welders while it is raining - Sau làm việc, phải cắt nguồn điện vào máy hàn điện After completing welding work, operators must disconnect power sources from electric welders - Đối với thiết bị hàn hơi, phải khóa tất van hơi, đảm bảo kim đồng hồ áp suất phải số Regarding gas welders, operators must close all gas valves and ensure that readings on pressure meters are at zero - Làm vệ sinh máy, thu dọn mặt bằng, ghi sổ nhật trình bàn giao cho ca sau After completing welding work, operators must clean welders and work space and take note on shift logs 0.1.25 Phũng chng chỏy n trờn cụng trng / Fire and explosion prevention Nh thu s cung cp v t cỏc bỡnh cu ho MFZ8 ABC ti phũng hin trng, kho v cỏc ni nguy him d chỏy n nh ni mỏy hn, bỡnh hi ct, xng c khớ The Contractor shall apply and install MFZ8 ABC fire extinguishers at Site Office, warehouses and other places in risk of fire and explosion, such as places for storing welders, gas cylinders of welders, mechanic workshops, etc Trờn mt bng cú b trớ cỏc vũi nc, thựng ng nc cha chỏy v trớ thun tin Water hoses and water tanks for fire prevention are placed in convenient places on site Chuyn b cỏc bao ti cỏt, xụ, xng ti cỏc v trớ d chỏy thun tin cho quỏ trỡnh cha chỏy Sand bags, buckets, shovels are placed near places in risk of fire and explosion Treo bin bỏo cm la ti cỏc vt t, kho xng du, húa cht Warning signs are installed at warehouses, oil tanks, chemical tanks Khụng t chc un nu ti cụng trng -Trang 62- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: No cooking are allowed on-site T chc khu vc hỳt thuc riờng cho ngi lao ng Smoking is only allowed in designated areas 0.1.26 An ton giao thụng trờn cụng trng / On-site traffic safety Thng xuyờn giỏo dc, nhc nh cụng nhõn iu khin mỏy phi tuõn th nghiờm ngt nhng quy nh v an ton lao ng s dng mỏy xõy dng, phng tin giao thụng trờn cụng trng c th nh sau: Site Safety Board shall frequently inform and request machine operators to fully observe labor safety regulations while operating machine and vehicles on site, as follows : Tt c cỏc mỏy múc, bt k l c hay mi, trc a vo s dng u phi c kim tra k lng tỡnh trng k thut ca mỏy, c bit l cỏc c cu an ton nh: phanh, c cu t hóm, c cu hn ch hnh trỡnh Nu cú hng húc phi kp thi sa cha mi a mỏy cụng trng All machine, regardless of being new or used, must be inspected technically, especially safety mechanisms, such as braking, governing and limiting mechanisms All defects must be remedied before relevant machine is put into use Cỏc bin bỏo v an ton giao thụng thớch hp s c dng lờn ti cụng trng hng dn cụng nhõn v ti x gii hn tc v cỏc yờu cu giao thong khỏc Traffic safety signs shall be installed on-site to inform personnel and vehicle drivers of speed limits and other traffic requirements Khi lm vic phi m bo cho mỏy lm vic liờn tc, tin cy cao v phỏt huy c ht cụng sut ca mỏy Cỏn b k thut v cụng nhõn lỏi mỏy, lỏi xe phi chp hnh y v nghiờm tỳc ch bn giao mỏy ti hin trng v cỏc quy trỡnh quy phm v qun lý s dng mỏy, sa cha mỏy múc v cỏc quy bin bỏo giao thụng trờn cụng trng While operating machine, operators must ensure that the machine are operated continuously, credibly and effectively Technicians, machine operators and vehicle drivers must fully observe on-site machine hand-over procedures and other standards on machine operation, repair and maintenance and traffic safety signs installed on-site Phi lỏi xe, lỏi mỏy theo ỳng tuyn thi cụng, trỡnh t thi cụng v cỏc quy nh v k thut an ton khỏc cụng trng -Trang 63- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: Vehicle drivers must drive their vehicles along designated construction routes and in compliance with other safety regulations being applied Cỏn b k thut v cụng nhõn c gii phi trc tip quan sỏt c mt bng thi cụng m bo an ton hnh mỏy Ch ngi ca th lỏi hoc ch lm vic phi thun tin, n nh, d quan sỏt, khụng b ma nng, ỏnh sỏng v cú h thng gt nc Technicians and machine operators must have a good view of their work space to ensure work safety Cabs or work space of machine operators must be convenient, stable, unobstructed, protected from sun or rain, lighted and equipped with windshield wipers Trong thi gian ngh, cn loi tr kh nng t ng m mỏy Cn khoỏ, hóm b phn ng xe, mỏy ng ni an ton, cn thit phi kờ, chốn bỏnh cho mỏy trụi v nghiờng During break times, operators must ensure that machine shall not be started unexpectedly Machine starter mechanism must be locked Machine or vehicles must be parked in safe place with blocks to prevent the vehicles from moving Cỏc xe, mỏy di chuyn, lm vic ban ờm hoc thi tit cú sng mự, mc dự ó cú h thng chiu sỏng chung nhng phi dựng ốn chiu sỏng riờng trc v sau ze, mỏy bng h thng ốn pha v ốn tớn hiu While driving or operating vehicles or machine in night time or in fog, operators must turn on lighting systems of the vehicles or machine, in addition to site lighting systems Xe ụtụ chuyn cc v cụng trng phi tuõn th cỏc quy nh v an ton giao thụng, nht l chuyn trờn ng quc l v trờn tuyn, khu trung dõn c Xe phi cú y cỏc h thng an ton v giy phộp lu hnh Phi chy ỳng tuyn ng, m bo tc an ton Drivers of trucks transporting piles to site must observe traffic regulations, especially when driving on roads and through residential areas Such trucks must have sufficient and good safety mechanisms and relevant permits Drivers must follow designated routes and observe speed limits 0.1.27 Bo v an ninh cụng trng, qun lý nhõn lc, thit b / Site safeguarding, personnel and equipment management Nh thu ch ng t chc xõy dng lc lng bo v ti cụng trng qun lý v bo v c s vt cht, ti sn, mỏy múc trờn cụng trng -Trang 64- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: The Contractor shall actively organize on-site safeguard team to protect and manage materials, assets and equipment Phi hp vi bo v ca ch u t, chớnh quyn a phng lp k hoch bo m an ninh trt t, bo v c s vt cht, thit b mỏy múc trờn cụng trng The Contractor shall coordinate with safeguard team of the Investor and local authorities to prepare plans for ensuring order and security and protecting materials, assets and equipment deployed on-site Giỏm sỏt vic s dng phng tin bo v cỏ nhõn, th vo ca cỏn b cụng nhõn viờn v khỏch n liờn h cụng tỏc thụng qua cỏc cht bo v The safeguard team shall monitor use of personal protective clothing, entrance cards of personnel and visitors by deploying guard posts Ghi chộp s sỏch vic ng ký a mỏy múc, thit b, dng c vo s dng ti cụng trng The safeguard team shall maintain a logbook to register all equipment, machine and tool to be delivered to the site Qun lý mụi trng /Environmental protection 0.1.28 Cỏc bin phỏp gim thiu / Remedies Cỏc bin phỏp gim thiu ting n, bi khúi, rung chn ng, rũ r du m, rỏc thi phi thc hin trit , m bo an ton, v sinh mụi trng Measurements to minimize noise, dust, smoke, vibration, oil leak, construction waste must be implemented fully in order to protect environment and ensure site sanitation 0.1.29 Ting n / Noise Mỏy múc, phng tin chuyn c bo trỡ bo dng nh k m bo cht lng hnh, gim ting n v gim rung Machine and vehicles shall be maintained regularly in order to ensure good performance and reduce noise and vibration Khụng c chuyn quỏ ti trng cho phộp i vi phng tin chuyn, cm s dng cũi cụng trng Transport vehicles are not allowed to transport goods heavier than rated loads Horns are not allowed to be used on-site -Trang 65- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: i vi cỏc thit b hnh c nh nh mỏy phỏt in ta thng xuyờn kim cỏc v trớ phỏt sinh ngun n, rung ng; gn thờm mt lp cỏo su v chnh sa cho chỳng n khp Regarding equipment to be installed in fixed places, such as generators, operators shall frequently inspect parts that may generate noise or vibration and minimize noise and vibration by installing rubber buffers and ensuring good connections 0.1.30 Bi, khúi / Dust and smoke Trc hoc san m, t phi c ti lm m, cng bt chn bi phớa tip giỏp vi cỏc cụng trỡnh ang thi cụng xung quanh hn ch bi phỏt sinh nh hng n mụi trng xung quanh quỏ trỡnh thi cụng cỏt, ỏ c nõng ben t t, khụng nhanh hn ch bi Before being dumped or leveled, soil must be humidified Canvas must be installed between the construction area and surrounding areas to minimize effects caused by dust on surrounding area Dumping actions shall be conducted slowly to minimize dust Xe chuyn bựn v chuyn t phi kớn v c che y bờn trờn bng bt (cho xe ch t) hoc phờn na (cho xe ch bựn) hoc vo cụng trng v chy trờn ng vt liu khụng vng vói, bay bi ngoi gõy ụ nhim mụi trng v mt an ton Truck bed used for transporting soil and mud must be covered by canvas (for soil transporter) or bamboo panels (for mud transporter) while going in/out of site and on road to prevent soil and mud from scattering Trong quỏ trỡnh chuyn vt liu gp thi tit khụ nng gõy bi cn dựng xe phun nc chng bi sut dc ng chuyn In dry weather, road used for transporting materials must be sprayed with water to reduce dust Xe ch vt liu, dng c, t, cỏt trc cụng trng u c Nh thu t chc xe trỏnh bi bn ng Vehicles used for transporting materials, soil, sand etc must be cleaned before going out of construction site Trang b y trang thit b bo h lao ng cho cụng nhõn thi cụng nh m bo v, gng tay, ng, kớnh chn, nỳt tai, khu trang -Trang 66- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: Personnel shall be equipped with protective clothing, such as helmets, gloves, boots, ear covers, and face-masks Cỏc phng tin ti phi c chuyn ỳng thit k, tuyt i khụng chuyờn ch vt quỏ trng ti thit k Khụng cht nguyờn liu vt quỏ thnh xe, hn ch ri vói dc ng All transport vehicles must not be over-loaded Materials must not be loaded higher than sides of truck beds to prevent material from scattering Khc phc, sa cha kp thi nhng h hng trờn ng chuyn nhm gim ri vói nguyờn liu, hn ch bi mt ng cun vo khụng khớ All defects found when vehicles are running on roads shall be immediately remedied prevent material from scattering Ngoi ra, chuyn nguyờn vt liu trờn ng hn ch s dng cũi xe vo cỏc gi nhy cm nh sỏng sm, tra, chiu ti v khụng c chy vi tc nhanh gõy nh hng n dõn c xung quanh Vehicle drivers should not use horns while driving on road in the morning, noon and late afternoon, and should not drive fast to avoid interfering with local people 0.1.31 Rung / Vibration Thay cỏc b phn mỏy múc thit b phỏt rung ng Machine parts that generate too much vibration shall be replaced Kim tra thng xuyờn v sa cha kp thi cỏc chi tit mỏy b mũn v h hng hoc gia cụng cỏc chi tit mỏy c bit kh rung Operators shall frequently inspect machine to find defects and timely remedy the same, or fabricate specialized parts to reduce vibration Nn b mỏy thit b phi bng phng v chc chn Cỏch ly nhng thit b phỏt rung ln bng nhng rónh cỏch rung xung quanh múng mỏy Machine foundation must be even and firm Parts generating vibration shall be isolated by vibration reduction trenches around machine foundation B trớ ca kớp thi cụng bo m ngi hnh cú khong thi gianm ngh di khụng tip xỳc vi rung ng Operation hours shall be organized so that operators have enough period of vibrationfree time -Trang 67- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: Trang b phng tin bo v cỏ nhõn cho ngi lao ng nh: gng tay chng rung, giy vi chng rung, v.v Personnel shall be equipped with protective clothing, such as anti-vibration gloves, anti-vibration shoes 0.1.32 Kim soỏt nc thi cỏc loi / Waste water management Thng xuyờn kim tra mỏy múc, thit b, xe c khc phc nhng hng húc, rũ r du m cho cỏc thit b, mỏy múc Operators must frequently inspect machine, equipment and vehicles to ensure the same are free of defects or oil leaks Xng du nhp v phi c nhp vo kho, kho cỏch xa khu vc phỏt sinh ngun la, c bờ tụng ỏy v ỏnh búng cú to h thu, xung quanh c xõy bao cao khong 30 cm trỏnh xng du rũ r ngoi Fuel and gasoline must be stored in specialized warehouses far from heat sources Floors of warehouse are made of concrete and smoothen and have collection pits Sides of floors are protected by 30 centimeter high guides to prevent fuel and gasoline from flowing outside Cỏc loi ph liu sau bo dng, sa cha mỏy múc thit b nh: gi lau dớnh du m, bao bỡ cỏc loi, phi c thu gom hng ngy x lý v thi b ỳng qui nh Materials used during machine repairing and maintaining such as rags, bags, must be collected and treated correctly 0.1.33 Kim soỏt rỏc thi, nh v sinh cụng nhõn trờn cụng trng / Waste management, on-site toilets Nc thi quỏ trỡnh thi cụng phi c thu gom bng h thng rónh tm v ng ng tm qua cỏc h ga chy hng thoỏt nc chung ca cụng trng Cỏc h ga c no vột thng xuyờn m thoỏt nc nhanh v trit Waste water from construction activities shall flow through temporary trenches and pipes to collection pits, and then to drainage system of the construction site Collection pits must frequently cleaned to ensure good drainage Xõy dng nh v sinh cụng trng trung trỏnh mt v sinh cụng cng v gõy ụ nhim mụi trng xung quanh On-site toilets must be constructed to ensure site sanitation and avoid pollution -Trang 68- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: Trong quỏ trỡnh thi cụng, cỏc vt liu ph thi c ti m, thu gom gn v chuyn mt bng cụng trng ngy vo thi gian thớch hp Xe chuyn ph thi cú bt ph kớn trỏnh bi v ph thi ri vói trờn ng chuyn During construction, all construction waste shall be sprayed with water, collected and moved out of the site within suitable hours Trucks used for transporting construction waste must have bed covers to prevent construction waste from scattering on road Vi rỏc thi sinh hot Ban iu hnh s lm hp ng vi Cụng ty mụi trng n chuyn v x lý Waste from living activities shall be handled by environment service company under agreements with Site management board Cỏc trang thit b, mỏy múc dng c, hng ngy c v sinh sch s, kt ỳng v trớ quy nh Cỏc dng c cha ng, chuyn nh xe ci tin, hc ng va, bờ tụng luụn c kim tra m bo chc chn kớn, hn ch ri vói All equipment, machine, tools shall be cleaned after use and shall be stored in designated places All containers and transporting vehicles, such as carts, buckets, shall be inspected to prevent materials from scattering Nh v sinh di ng nh thu b trớ trờn cụng trng phi ct c ngi v sinh hng ngy, thu gom v ỳng ni quy nh Movable toilets installed on-site shall be managed and cleaned correctly by personnel assigned by the Contractor -Trang 69- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: TIN THI CễNG / CONSTRUCTION SCHEDULE Tng tin thi cụng / Overall construction schedule H thng múng cc ca hng mc thi cụng cú cỏc thụng s c bn sau: Main specifications of basement and pile works are as follows : Tng s lng cc thi cụng: Total quantity of piles : - Múng nh turbin:1250 tim cc Foundation of turbin building: 1250 piles - Múng nh iu khin trung tõm: 201 tim cc Foundation of main control: 201 piles Tin thc hin cụng vic c tớnh toỏn da vo: Construction schedule is determined on the basis of : - iu kin giao thụng v mt bng lp t thit b Transport conditions and installation ground conditions - Tin bn giao mt bng ca n v tng thu v Ch u t Schedule of construction ground hand-over of the EPC Contractor and the Employer - Yờu cu v trỡnh t thi cụng ca n v tng thu v Ch u t Requirements of construction stages specified by the EPC Contractor and the Employer - Khi lng cụng vic thc t v nng sut ca thit b Actual construction quantity and capability of machinery and equipment - Cỏc thay i thit k nu cú Design changes, if applicable - iu kin thi tit bt kh khỏng: Giú >= cp Ma dy ht cng khụng th thi cụng c nh hng n cht lng mi hn Force majeuer: Wind >=grade Heavy rain, which hinders the construction works becuase of impact on welding joints -Trang 70- PETROVIETNAM CONSTRUCTION JOINT STOCK CORPORATION THAI BINH THERMAL POWER PLANT PROJECT EXECUTION BOARD (PEB) Add: My Loc Commune, Thai Thuy District, Thai Binh Province Tel: (84) 036 3721 446 - Fax: (84) 036 3776 274 - Email: - Mt in li cp cho thit b ộp cc Power supply to pile driving machine is cut off Thi gian thi cụng ộp cc / Time for driving piles: S dng 06 mỏy cho Unit v 06 mỏy thi cụng Unit 2: D kin 50 ngy 06 machines for Unit and 06 machines for Unit 2: estimated 50 days Biu huy ng nhõn lc, vt liu, thit b chớnh / Chart of main personnel, materials and equipment mobilization Biu huy ng nhõn lc, vt liu, thit b chớnh xem bn v kốm theo See the drawing attached herein Bin phỏp bo m tin thi cụng / Methods to ensure construction schedule Cỏc kỡ ngh l b trớ ngi lm vic trờn cụng trng, m bo tin Construction activities shall also be conducted on holidays to meet construction schedule Cụng trng ch dng lm vic cỏc trng hp bt kh khỏng: giú trờn cp 4; ma dy ht;bóo, ỡnh cụng, bo ng Construction activities shall only be suspended in force majeure, such as grade wind or higher, heavy rain, storms, strikes, riots, etc Hn trc bn mó phớa ngoi, dng thi cụng trng hp mt in di ngy External plate is welded first Stop working in case of power cut -Trang 71-