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地震作用下三峡库区典型堆积层滑坡变形特性研究OA北大核心CSCDCSTPCD

Research on the Deformation Characteristics of Typical Accumulative Landslides in the Three Gorges Reservoir under Earthquakes

中文摘要英文摘要

选取三峡水库区地震频发的兴山县一典型厚层堆积型滑坡为研究对象,以实测库水位波动与地震发生时间点关系为基础,并参照 V 度地震烈度,采用静力‐渗流‐动力多场耦合3D 数值模拟方法,对滑坡变形机理进行研究。结果表明:(1)地震作用与库水位波动密切相关,不利的渗流条件和地震动荷载作用相互叠加,渗流场‐动力场耦合作用共同导致滑坡体发生变形;(2)堆积层滑坡体结构相对均质,无显著不良地质单元,除堆积体临空面附近外,其对地震波几乎无放大效应;(3)V 度地震…查看全部>>

Seismic actions in the head region of the Three Gorges Reservoir (TGR) have increased significantly since the beginning of dam impoundment .Coupled with cyclical water level fluctua‐tion ,the deformation mechanism of landslides beside TGR are worthy of research .A typical ac‐cumulative landslide located in Xingshan County was selected as a case study in this paper .Three typical adverse conditions were determined by monitoring relationship between the water …查看全部>>

江洎洧;潘家军;张伟

长江科学院 水利部岩土力学与工程重点实验室,湖北 武汉 430010长江科学院 水利部岩土力学与工程重点实验室,湖北 武汉 430010长江科学院 水利部岩土力学与工程重点实验室,湖北 武汉 430010

天文与地球科学

三峡库区地震堆积型滑坡多场耦合数值模拟变形特性

the Three Gorges Reservoirearthquakeaccumulative landslidemulti-field coupling numerical simulationdeformation characteristics

《地震工程学报》 2015 (z2)

考虑防渗墙顶端土体剪切滑移效应的墙与土接触模型及其验证研究

142-146,5

国家自然科学基金项目(51309029,51109013);中央级公益性科研院所基本科研业务(20140620164601)

10.3969/j.issn.1000-0844.2015.增刊2.0142

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