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A surface seismic approach to liquefaction

机译：液化的地表地震方法

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The liquefaction potential of soils is traditionally assessed through geotechnical approaches based on the calculation of the cyclical stress ratio (CSR) induced by the expected earthquake and the 'resistance' provided by the soil, which is quantified through standard penetration (SPT), cone penetration (CPT), or similar tests. In more recent years, attempts to assess the liquefaction potential have also been made through measurement of shear wave velocity (V-S) in boreholes or from the surface. The latter approach has the advantage of being non-invasive and low cost and of surveying lines rather than single points. However, the resolution of seismic surface techniques is lower than that of borehole techniques and it is still debated whether it is sufficient to assess the liquefaction potential.
机译：传统上，土壤的液化潜力是通过岩土工程方法来评估的，该方法是基于预期地震引起的循环应力比（CSR）和土壤提供的“阻力”的计算，这可以通过标准渗透率（SPT），圆锥渗透率进行量化（CPT）或类似测试。近年来，还通过测量井眼或地表的剪切波速度（V-S）来评估液化潜力。后一种方法的优点是非侵入性和低成本，并且测量线而不是单点。然而，地震地表技术的分辨率低于井眼技术的分辨率，并且尚不足以评估液化潜力。

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