Evaluation of soil liquefaction in the Chi-Chi, Taiwan earthquake using CPT
Evaluation of soil liquefaction in the Chi-Chi, Taiwan earthquake using CPT
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DOI：
10.1016/j.soildyn.2004.06.009
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发表时间：
2004-10
影响因子：
4
通讯作者：
C. Ku;D. Lee;Jian Hong Wu
中科院分区：
文献类型：
--
作者：
C. Ku;D. Lee;Jian Hong Wu
摘要1999年台湾集集大地震期间，台湾中部地区发生多起砂沸现象，造成严重的地面沉降与结构破坏。根据安装的加速度记录，受地震影响区域的地面水平加速度峰值在774.42 - 121.3gal之间。作者对这次地震中的土壤液化进行了广泛的调查。在本文中，我们提出的CPT勘探和地震后液化分析的结果。从受液化影响的地区收集了275个静力触探试验数据，并得出了46个液化案例和88个非液化案例，可用于评估现有液化评估模型的准确性。此外，液化土的强度在地震后，其液化潜力在未来事件的含义进行了讨论。
During the 1999 Chi-Chi, Taiwan earthquake, many sand boiling phenomena were observed in central Taiwan, which caused severe ground settlement and structure damages. According to the installed accelerograms, the peak ground surface horizontal accelerations in the liquefaction-affected areas range from 774.42 to 121.3gal. The writers carried out an extensive investigation of soil liquefaction in this earthquake. In this paper, we present results of the CPT exploration and post-earthquake liquefaction analysis. Two hundred and seventy five (275) cone penetration test data were collected from the liquefaction-affected areas, and 46 liquefaction case histories and 88 non-liquefaction case histories were derived that can be used to evaluate the accuracy of existing liquefaction evaluation models. In addition, the strength of the liquefied soils after earthquake and the implication of its liquefaction potential in the future event are discussed.