The July 14, 2003 Qianjiangping landslide, Three Gorges Reservoir, China
The July 14, 2003 Qianjiangping landslide, Three Gorges Reservoir, China
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DOI：
10.1007/s10346-004-0020-6
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发表时间：
2004-07-01
期刊：
影响因子：
6.7
通讯作者：
Huang, Bo-Lin
中科院分区：
文献类型：
--
作者：
Wang, Fa-Wu;Zhang, Ye-Ming;Huang, Bo-Lin
千江坪滑坡发生在2003年7月三峡水库首次蓄水后。现场调查显示，水库达到135米时发生了故障，但受影响的斜坡的稳定性已经降低了预先存在的层面剪切，从滑坡脚的泥岩采石，和以前的大雨。滑坡的快速和长的跳动机制的一个可能的解释是，在层面剪切运动断裂的方解石胶结物，并迅速降低砂岩强度的剩余剪切强度。
The Qianjiangping landslide occurred after the first impoundment of the Three Gorges Reservoir in July 2003. Field investigation revealed that failure occurred when the reservoir reached 135 m, but the stability of the affected slope was already reduced by pre-existing bedding-plane shears, quarrying of mudstone from the landslide toe, and previous heavy rain. A possible explanation of the rapid and long runout mechanism of the landslide is that movement on a bedding-plane shear ruptured the calcite cement and rapidly reduced the sandstone strength to residual shear strength.