Comparing the Results of Geotechnical Tests with the Well Seismic Survey to Find the Dynamic Modulus of Elasticity for the Surface Soil Sections in Hilla City

The study area for Babylon Governorate is located roughly 110 kilometers from Baghdad, Iraq's capital city. Approximately 5,119 km2 of total land occupied by it. most common wind direction in Iraq northwest. results the cross-hole survey using P and S-wave timings velocities were discovered through a geophysical analysis area. In depths 1 to 10 meters, P-wave velocity was 482.01 m/sec 180.11 m/sec. 1.6-1.8 kn/m3 average bulk density research area's soils, with lowest value 1.6 1m highest 1.8 at m. At internal friction angles (ɸ) ranged 15 30 degrees. values increase depth surface m because soil (the layer compaction or load). Based on ratio compressional shear density, elasticity geotechnical parameters determined. There wide variation Poisson's (v) between 1-10 which indicates that sandy clay. considered saturated when Ko close concentration index Ic exceeds 3.