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. i 2 in the form of a graph. Determine the depths of the strata. Vy = 2250 m/sec 8 x5 x 10 Surface soil V = 750 m/sec Sand and loose gravel H V, Rock AB, = 8.75 x 10' sec AC, 33.75 x 10' sec AC: = 38.75 x 10 sec d, = 2.188 m d; = 22.5 m AB = 12.75 x 10 see V = 172 m/sec 20 d 30 Distance m 10 40 50 Figure Time of first wave arrival, seconds 6.
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. i 2 in the form of a graph. Determine the depths of the strata. Vy = 2250 m/sec 8 x5 x 10 Surface soil V = 750 m/sec Sand and loose gravel H V, Rock AB, = 8.75 x 10' sec AC, 33.75 x 10' sec AC: = 38.75 x 10 sec d, = 2.188 m d; = 22.5 m AB = 12.75 x 10 see V = 172 m/sec 20 d 30 Distance m 10 40 50 Figure Time of first wave arrival, seconds 6.
Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter17: Subsoil Exploration
Section: Chapter Questions
Problem 17.8P: Refer to Problem 17.7 and Figure 17.16. Suppose a footing (1.5 m 1.5 m) is constructed at a depth...
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