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A correlation to evaluate cyclic resistance from CPT applied to a case history

机译：与CPT的循环电阻应用于案例历史的相关性

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摘要

A methodology to evaluate the undrained cyclic resistance of sandy deposits from cone penetration tests through the state parameter is applied to the case history of the village of San Carlo (Italy), where widespread liquefaction phenomena occurred during the 2012 Emilia earthquake. The mechanical behaviour of the sand retrieved in the area of San Carlo was characterised within the framework of critical state soil mechanics via a series of monotonic and cyclic triaxial tests carried out on both undisturbed and reconstituted samples. Centrifuge cone penetration tests were also performed on reconstituted models of the same material. The results of centrifuge and undrained cyclic triaxial tests were interpreted through the state parameter to calibrate a direct correlation between the cone resistance, q(c) and the undrained cyclic resistance ratio (CRR). CRR profiles were deduced from the CPTs performed at sites in San Carlo where liquefaction took place using the correlation calibrated herein and a liquefaction assessment was carried out. The results of the proposed method was compared to a well-known simplified approach.
机译：通过国家参数从锥体渗透试验评估砂岩沉积物的不驱涉循环电阻的方法应用于圣卡罗（意大利）村的案例历史，在2012年艾米利亚地震期间发生了广泛的液化现象。在San Carlo区域检索的沙子的力学行为在临界状态土壤力学框架内通过，通过在不受干扰和重构的样品上进行的一系列单调和循环三轴试验。离心机锥形渗透试验还在同一材料的重构模型进行。通过状态参数解释离心机和未染色的环状三轴试验的结果以校准锥形电阻，Q（C）和不涉及的循环电阻比（CRR）之间的直接相关性。从SAN CARLO在SAN CARLO的部位进行的CPT中推导出CRR型材，其中使用本文校准的相关性进行液化，并进行液化评估。将所提出的方法的结果与众所周知的简化方法进行比较。

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