Basic Geotechnical Earthquake Phần 7 docx
Basic Geotechnical Earthquake Phần 7 docx
... –16.366 + 1. 178 M – 0.927logR – 0.013R + 0.657logW + 0.348logT
+ 4.527log(100-F) – 0.922D
50
(9.5)
For lateral spreading of gently sloping ground:
log D
H
= –15 .78 7 + 1. 178 M – 0.927logR - 0.013R ... 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. (7. 11) is
determined using Eq. (7. 6) which makes use...
Basic Geotechnical Earthquake Phần 3 docx
... 4, 1 975 , magnitude = 7. 3) on the basis of micro seismic
activity, ground tilting and unusual animal behaviour (Nandi, 1999). They also foretold 4 out
of 5 events of magnitude 7 during 1 976 -77 . ... the
28 Basic Geotechnical Earthquake Engineering
Fig. 2.19 Acceleration, velocity and displacement versus time recorded during San Fernando earthquake
(Courtesy: Day, 2002)
The geo...
Basic Geotechnical Earthquake Phần 4 docx
... (Relationship between maximum acceleration,
48 Basic Geotechnical Earthquake Engineering
have been developed by various researchers. Donovan and Bornstein, 1 978 , 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 pro...
Basic Geotechnical Earthquake Phần 8 docx
... 479 . 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)(45)
2
= 8628 .75 + 19116 = 277 44 .75 lb/ft.
P
A
=P
1A
+ P
2A
= 479 . 375 ... (0.65)(0.294)(125)(20)
= 477 .75 lb/ft
2
resultant force = σ
h
H = ( 477 .75 )(20) = 9555 lb/ft
Earthquake case:
P
E
=
1
2
12
2
k
a
g
H
A
max
t
/
()
F
H
G
I
K
J
γ
= (0.5)(0.294)
0.5
(0.2...
Basic Geotechnical Earthquake Phần 1 pps
... killed
1 976 Tangshan, China 7. 5 655,000
19 27 Qinghai, China 7. 7 200,000
1923 Tokyo, Japan 7. 9 143,000
1908 Messina, Italy 6.9 110,000
1920 Northern China 8.3 100,000
1932 Gansu, China 7. 6 70 ,000
1 970 ... 57
6.2 Factors Governing Liquefaction in the Field 64
6.3 Liquefaction Analysis 67
6.4 Antiliquefaction Measures 72
7. EARTHQUAKE RESISTANT DESIGN FOR SHALLOW
FOUNDATION...
Basic Geotechnical Earthquake Phần 2 ppsx
... deformation within
them.
Introduction to Geotechnical Earthquake Engineering 7
The sequence concluding with a large earthquake in Kashmir in 1555. The central Himalayan
earthquake may have been based on ... earthquake as well. In 171 3 a severe earthquake
damaged Bhutan and parts of Assam (Ambraseys and Jackson, 2003).
Thirteen years later, in September 173 7, a catastrophic ea...
Basic Geotechnical Earthquake Phần 5 pptx
... 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 ... For earthquake magnitudes other than 7. 5, the CRR obtained from Fig.
6.10 is multiplied by magnitude scaling factor. Magnitude scaling factor has been given in
Table 6.1.
58 B...
Basic Geotechnical Earthquake Phần 6 pdf
... friction
angle φ′ as per Fig. 7. 3.
Factor of safety FS is determined as follows:
FS =
q
q
ult
all
(7. 15)
q
ult
in Eq. (7. 15) is determined using Eq. (7. 13) or (7. 14). q
all
in Eq. (7. 15) is allowable
bearing ... of
safety FS is determined as follows:
FS =
q
q
ult
all
(7. 18)
q
ult
in Eq. (7. 18) is determined using Eq. (7. 16) or (7. 17) . q
all
in Eq. (7. 18) is allowable
bearin...
Basic Geotechnical Earthquake Phần 9 pps
... the types of earthquake resistant structural systems? Briefly explain about them.
5. Comment on earthquake engineering design techniques.
126 Basic Geotechnical Earthquake Engineering
Earthquake ... of important structures.
124 Basic Geotechnical Earthquake Engineering
Fig. 11.8 Schematic of the earthquake design procedure (Courtesy: http://www.branz.co.nz)
Earthquake Re...
Basic Geotechnical Earthquake Phần 10 pptx
... 43
Attenuation 47, 48, 51
Attenuation equations 47
Awarness compaign 36
B
Bearing capacity 76 , 77 , 78 , 79 , 80, 81, 82, 83,
84, 86
INDEX
Blasting 73
Braced frames 1 27
Brittle behavior 10
C
Catastrophic earthquakes ... 21
Friction piles 87
G
General shear failure 76 , 79
Geology 1, 7
Geotechnical earthquake engineering 1
GPS 5
Ground motion parameters 52
Ground stabilizat...