Evaluating cyclic liquefaction potential using the cone penetration test
Evaluating cyclic liquefaction potential using the cone penetration test
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DOI：
10.1139/t98-017
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发表时间：
1998-06
影响因子：
3.6
通讯作者：
P. Robertson;C. Wride
中科院分区：
文献类型：
--
作者：
P. Robertson;C. Wride
土壤液化是用砂土建造或在砂土上建造的建筑物的主要问题。本文描述了土的液化现象，回顾了适用的定义，并对利用圆锥贯入试验(CPT)评价循环液化的方法进行了更新。描述了一种直接从CPT估计颗粒特性的方法，并将其结合到评估抗循环载荷的方法之一中。文中还给出了一个工程实例，说明了静力触探的连续性如何能够很好地从整体上评价循环液化势。这篇论文是作者提交给1996年国家地震工程研究中心关于评价土的抗液化能力的研讨会论文集的一部分。关键词：循环液化，砂土，触探试验
Soil liquefaction is a major concern for structures constructed with or on sandy soils. This paper describes the phenomena of soil liquefaction, reviews suitable definitions, and provides an update on methods to evaluate cyclic liquefaction using the cone penetration test (CPT). A method is described to estimate grain characteristics directly from the CPT and to incorporate this into one of the methods for evaluating resistance to cyclic loading. A worked example is also provided, illustrating how the continuous nature of the CPT can provide a good evaluation of cyclic liquefaction potential, on an overall profile basis. This paper forms part of the final submission by the authors to the proceedings of the 1996 National Center for Earthquake Engineering Research workshop on evaluation of liquefaction resistance of soils.Key words: cyclic liquefaction, sandy soils, cone penetration test