| 黄土的湿陷和震陷 |
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| 引用本文： | 袁中夏,王兰民,王谦.黄土的湿陷和震陷[J].世界地震工程,2010(Z1). |
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| 作者姓名： | 袁中夏 王兰民 王谦 |
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| 作者单位： | 中国地震局兰州地震研究所;中国地震局地震预测研究所兰州基地;中国地震局黄土地震工程开放实验室; |
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| 基金项目： | 国家科学自然基金项目(50978239); 甘肃省自然科学基金项目(1010RJZA010) |
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| 摘 要： | 黄土的湿陷性和震陷性分别是黄土在遇水和地震作用下产生的岩土灾害。黄土湿陷性评价及防治已经相对成熟。有些专家试图联系二者,以便解决黄土震陷性的工程评价和处理。本研究中,作者分析了黄土湿陷性与震陷性之间的联系与差异。研究认为,二者的产生都基于黄土的亚稳态结构,都是黄土架空结构破坏所引起,但其触发机制却是不同的。湿陷性产生的主要原因是吸力丧失,而震陷性主要由黄土在动荷载作用下的土体剪切破坏所导致。因此,关于二者之间的联系还不存在坚实的物理基础。
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| 关 键 词： | 黄土 湿陷 震陷 |
Collapsibility and seismic settlement of loess |
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| YUAN Zhongxia,WANG Lanmin,WANG Qian.Collapsibility and seismic settlement of loess[J].World Information On Earthquake Engineering,2010(Z1). |
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| Authors: | YUAN Zhongxia WANG Lanmin WANG Qian |
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| Institution: | YUAN Zhongxia1,2,3,WANG Lanmin1,WANG Qian1(1.Lanzhou Institute of Seismology,CEA,Lanzhou 730000,China,2.Lanzhou Base of Institute of Earthquake Sciences,3.Key Laboratory of Loess Earthquake Engineering,China) |
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| Abstract: | Loess collapsibility and seismic settlement are geotechnical hazard respectively happened under water and seismic ground motion.Since collapsibility assessment and mitigation are relatively mature,some previous efforts have been made to connect the collapsibility and the seismic settlement in order to solve the assessment and treatment of the latter.In this study,the similarity and difference between collapsibility and seismic settlement of loess are analyzed,which shows that both are based on the metastabl... |
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| Keywords: | loess collapsibility seismic settlement |
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