[This article belongs to Volume - 54, Issue - 06]
Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-27-07-2022-252

Title : Comparing the Results of Geotechnical Tests with the Well Seismic Survey to Find the Dynamic Modulus of Elasticity for the Surface Soil Layers in Hilla City
Zahraa N.Jedi, Amer A. All.Khalliidy,

Abstract : The study area for Babylon Governorate is located roughly 110 kilometers from Baghdad, Iraq's capital city. Approximately 5,119 km2 of Iraq's total land area is occupied by it. During the summer months, the most common wind direction in Iraq is northwest, with the greatest temperature recorded at 52.8 degrees Fahrenheit. Rainfall distribution and amounts range .from 50 to 200 millimeters per year The results of the cross-hole survey using P and S-wave timings and velocities were discovered through a geophysical analysis of the area. In depths of 1 to 10 meters, the P-wave .velocity was 137.7 m/sec and the S-wave velocity was 617.05 m/sec kn/m3 was the average bulk density for the research area's soils, with the lowest 8.1 - 1.6 value of 1.6 kn/m3 in the depths of 1m and the highest value of 1.8 kn/m3 at 10m, with an .average of 1.6kn/m3 At depths of 1 to 10 meters, internal friction angles () ranged from 33 to 37, with the lowest .value at 33 and the highest at 37, with an internal friction angle ratio of 37.4 The values of P and S-wave velocities rise with depth from the surface to the depth of 10 m .)because of the density increase with depth in the soil (the layer compaction or soil load Based on the ratio of compressional and shear velocities to density, elastic and geotechnical .parameters were determined There was a wide variation in Poisson's ratio (v) between 1-10 meters, which indicates that .the soil in the research area is sand When Ko is close to 1 and the concentration index Ic exceeds 3, the soil is considered .saturated With increasing depth. Elastic behavior has been observed to gradually alter and The grain size distribution curves of soil samples taken from the boreholes at the site were determined using sieve analysis and Hydrometer analysis was carried also to determine the grain size distribution of fine-grained soils having particle sizes smaller than 0.075 mm.