... exception. Times of India, September 19,
199 9, P. 12.
Iyengar, R. N., 199 4, Earthquake History of South India, The Hindu, Jan. 23.
Katsumi, Maraya M.M. and Miteuru T. ( 198 8), “Analysis of gravel drain ... often
132 Basic Geotechnical Earthquake Engineering
132
Acharrya, S.K. 199 9. Natural Hazards: Earthquakes and Landslides in India during the nineties
and mitigation strategy....
... 1883.
His catalog includes earthquakes from 893 to 18 69.
His son, Richard D. Oldham (1858- 193 6), wrote accounts of four major Indian earthquakes
(18 19, 18 69, 1881, and 1 897 ). He completed first ... Oldham’s 1 899 volume. Investigations
of the yet larger Assam earthquake of 195 0 were published as a compilation undertaken
9
EARTHQUAKES
2
CHAPTER
2.1 PLATE TECTONICS, THE CAUSE OF EA...
... Approx.
Uttar Kashi October 20, 199 1 6.6 >2,000
Chamoli March 29, 199 9 6.8 >150
Hindukush November 11, 199 9 6.2 No death reported
Earthquakes 29
2.5 m. Based on these assumptions, determine the moment ... 16, 18 19 8.5 No record
Jabalpur June 2, 192 7 6.5 ———
Indore March 14, 193 8 6.3 ———
Bhadrachalam April 14, 196 9 6.0 ———
Koyna December 10, 196 7 6.7 >200
Killari (Latur) Sep...
... (Relationship between maximum acceleration,
48 Basic Geotechnical Earthquake Engineering
have been developed by various researchers. Donovan and Bornstein, 197 8, developed the
following equation for ... Very sensitive clays may lose so
38 Basic Geotechnical Earthquake Engineering
38
DYNAMIC SOIL PROPERTIES
4
CHAPTER
4.1 INTRODUCTION
This book is concerned with geotechnical prob...
... environments.
54 Basic Geotechnical Earthquake Engineering
Selection of Design Earthquake
The selection of a design earthquake may be based on:
(a) Known design-level and maximum credible earthquake ... ground shaking caused by earthquake and upward flow of water
64 Basic Geotechnical Earthquake Engineering
observation was made in sand having higher relative density. Earth...
... expressed as percentage.
90 Basic Geotechnical Earthquake Engineering
SLOPE STABILITY ANALYSES
FOR EARTHQUAKES
9
CHAPTER
90
9. 1 INTRODUCTION
Slope movement is secondary effect of earthquake. There can ... total stress analysis:
T = cL + Ntanφ = s
u
L
86 Basic Geotechnical Earthquake Engineering
middle one-third of footing. q′= 89. 988 kN/m
2
from Eq. (7 .9) . q
ult
in Eq....
...
=
6
5
1.707×10
2.145
7 .95 655×10
Anchor pull = A
P
=
P
P
FS
A
p
−
= 28224.125–(43 392 /2.145) = 799 4.75 lb/ft
Earthquake case:
P
E
=
1
2
12
k
a
g
H
A
max
2
b
/
()
F
H
G
I
K
J
γ
= (0.5)(0. 295 )
0.5
(0.2)(50)
2
(64) ... (5)
2
= (0.5)(0. 295 )(130)(5)
2
= 4 79. 375 lb/ft
From 5ft to 50ft,
P
2A
=k
A
γ
t
(5)(45) + (0.5)(k
A
)(γ
b
)(45)
2
= (0. 295 )(130)(5)(45) + (0.5)(0. 295 )(64)(4...