Q.12 A seismic survey was carried out for a large project to determine the nature of the substrata. The results of the survey are given in Fig. . in the form of a graph. Determine the depths of the strata. 1= 2250 m/sec x 5 x 10 Surtace soil V.- 750 m/sec Sand and loose gravel Rock AB. - 8.75 x 10 see AC, = 33,75 x !o' sec AC = 38 75 x 10 d - 2.188 m i = 22.5 m AR = 12,75 x 10'see sec = 172 m/sece %3D 10 20 d- 30 40 Sい Distance m Figure Time of tirst wave arrival, seconds

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
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Q.12
A seismic survey was carried out for a large project to determine the nature of the substrata. The
results of the survey are given in Fig. .
in the form of a graph. Determine the depths of the
strata.
1= 2250 m/sec
x5 x 10
Surtace soil
V.- 750 m/sce
Sand and loose gravel
V,
Rock
AB. - 8.75 x 10 see
AC, = 33,75 x 1o' sec
= 38 75 x 10
sec
d - 2.188 m
d = 22.5 m
AR = 12,75 x 10' see
= 172 m/sec
%3D
10
20 d.
30
40
Sい
Distance m
Figure
Time of tirst wave arrival, seconds
Transcribed Image Text:Q.12 A seismic survey was carried out for a large project to determine the nature of the substrata. The results of the survey are given in Fig. . in the form of a graph. Determine the depths of the strata. 1= 2250 m/sec x5 x 10 Surtace soil V.- 750 m/sce Sand and loose gravel V, Rock AB. - 8.75 x 10 see AC, = 33,75 x 1o' sec = 38 75 x 10 sec d - 2.188 m d = 22.5 m AR = 12,75 x 10' see = 172 m/sec %3D 10 20 d. 30 40 Sい Distance m Figure Time of tirst wave arrival, seconds
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