Open AccessDetermine Shear wave velocities and Elasto-Dynamic properties for Nassiriya Refinery project in Thi qar Governorate- Nassiriya District- South of Iraq
Author(s) -
Ahmed Jalal Fakher,
Ahmed Salman Hassan
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/790/1/012005
Subject(s) - shear modulus , wave velocity , shear (geology) , geology , shear waves , refraction , geotechnical engineering , seismology , materials science , optics , physics , composite material , petrology
Four seismic refraction profiles for both compressional (P) and shear (S) waves had been surveyed within Nassiriya District/Thi Qar Governorate, South of Iraq, by the use of two impacts; normal and reverse shootings. This technique was done in order to delineate depths and thicknesses of the layers (soils) also elastic modulus were calculated for Knowledge a nature of the area soil to build engineering facilities. The calculations demonstrate that there are three shallow subsurface layers were found. The average of velocities and thicknesses of the first layer are equal to 645.95, 271.6 m/sec and 4.75 m, and for the second one 1130.55, 506 m/sec and 4.5m. and for the third one are 1666.6, 714 m/sec and 12.for each P and S-waves respectively. Moreover, Site engineering information including geotechnical properties were also measured and analyzed to enhance the main targets of this study, where the mean dynamic elastic constants were ranged between {κ=(597.92-4376.06) Mpa, μ=(138.31-1063.43) Mpa, E=(385.23-2951.24) Mpa and, σ=(0.39-0.38)}.