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September 5, 2025Iraqi Geological JournalOpen Access

Seismic Refraction Survey for Subsurface Soil Layer Characterization at a Residential Complex Site in Hilla, Babylon Governorate, Iraq

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Observational analysis reveals soil layer properties using seismic refraction in Hilla, indicating low geotechnical coefficients.

The seismic refraction survey characterized four soil layers, with the first layer having a velocity of 306 m/s.
The second layer had a velocity ranging from 378 to 404 m/s, with a thickness of 6.5 m, indicating steady subsurface conditions.
Dynamic elasticity coefficients varied widely, showing Poisson's ratio between 0.26-0.37, and Young's modulus from 65.14 to 1808.83 MPa.
Results showed no significant variability in wave velocities, suggesting no gaps or caverns in the measured depths.

Amer Al-Khalidy (2025) studied this question.

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