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
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
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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