Formation mechanism, deformation characteristics and stability analysis of Wujiang landslide near Centianhe reservoir dam
Formation mechanism, deformation characteristics and stability analysis of Wujiang landslide near Centianhe reservoir dam
复制标题
岑天河水库坝区乌江滑坡形成机制、变形特征及稳定性分析
DOI：
10.1016/j.enggeo.2016.06.025
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发表时间：
2016-08
影响因子：
7.4
通讯作者：
Zheng Hong
中科院分区：
文献类型：
--
作者：
Sun Guanhua;Huang Yaoying;Li Chunguang;Zheng Hong
乌江滑坡为古滑坡，总体积约1.327 × 107 m3。其下游边界距离新坝和坝轴线分别约300和590 m，而上游边界距离大坝约1000 m。滑坡相对高差380 ~ 480 m，地形中等陡度，冲沟发育。本文对该滑坡的岩土工程特征进行了调查，分析了滑坡的形成条件和演化过程。认为该滑坡属于基岩裂隙-顺层滑动模式，是一个经历多次滑动演化但仍存在蠕变变形的古滑坡。进一步分析其变形特征：滑坡目前处于缓慢蠕变变形状态，前缘变形较大，后缘变形较小。因此，很可能发生滑坡浅层的崩解或浅层上部的滑移。相反，整个斜坡下滑的可能性相对较低。最后，基于Morgenstern-Price假设，我们已经开发了一个严格的三维分析方法，可以分析的稳定性和确定主导滑动方向的水库蓄水期间的滑坡。
Wujiang landslide, which is an ancient landslide, has a total volume of approximately 1.327 × 107m3. Its downstream boundary is approximately 300 and 590 m away from the new dam and axis of the dam, respectively, while the upstream boundary is approximately 1000 m away from the dam. The relative relief of the landslide ranges from 380 to 480 m with moderately steep terrain and well-developed gullies. In this study, we have investigated the geotechnical characteristics of the landslide and analyzed its formation conditions and evolution process. We conclude that the landslide can be classified into the bedrock crack-bedding slip mode and is an ancient landslide where creep deformation still exists although it has undergone repeated sliding evolution. We have further analyzed its deformation characteristics: the landslide is currently in a slow creep deformation state, with the deformation larger at the leading edge and smaller at the trailing edge. Hence, the disintegration of the superficial part or the slip of the shallow-upper part of the landslide is likely to occur. Conversely, the possibility of the whole slope sliding down is relatively low. Finally, based on Morgenstern-Price assumptions, we have developed a rigorous three-dimensional analysis method that can analyze the stability and identify the dominant sliding direction of the landslide during the impoundment of the reservoir.
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影响因子：
5.3
作者：
N. Jia;Y. Mitani;M. Xie;I. Djamaluddin
通讯作者：
N. Jia;Y. Mitani;M. Xie;I. Djamaluddin
DOI：
10.1061/(asce)1090-0241(1998)124:11(1049
发表时间：
1998-11
影响因子：
3.9
作者：
T. Stark;H. Eid
通讯作者：
T. Stark;H. Eid
DOI：
--
发表时间：
2007
期刊：
Hydrogeology and Engineering Geology
影响因子：
--
作者：
Peng Xuan-min
通讯作者：
Peng Xuan-min
影响因子：
3.3
作者：
Jiao YY;Zhang XL;Zhao J
通讯作者：
Zhao J
影响因子：
7.4
作者：
A. Troncone;E. Conte;Antonio Donato
通讯作者：
A. Troncone;E. Conte;Antonio Donato