solution

At a level site, bedrock is overlain by a layer of overconsolidated clay of variable thickness. A seismic refraction survey is conducted with 13 receivers placed on a straight line between two shot points located 1,000 ft apart. From the p-wave arrival times listed below, determine and plot the subsurface profile in the central 800 ft portion of the survey. Determine the p-wave velocities of the overconsolidated clay and the underlying bedrock. Distance from SP 1 Arrival time from SP 1 (msec) Distance from SP 2 Arrival time from SP 2 (msec) Receiver 124 119 114 100 105 200 300 400 500 600 1000 950 900 800 700 600 500 400 300 700 108 113 200 100 115 800 900 950 1000 119 124