Seismic Crosshole Test
Nexgen provides Seismic Crosshole Testing to obtain high‑resolution shear (Vs) and compressional (Vp) wave velocities between closely spaced boreholes. The method delivers precise layer continuity, small‑strain stiffness, and dynamic soil parameters for seismic site classification, ground improvement QA/QC, and foundation design. Our calibrated sources, synchronized sensors, and rigorous processing produce dependable velocity profiles and moduli, supporting earthquake engineering and critical infrastructure projects with confidence.