三峡库区千将坪滑坡的高速远程滑动机理与库水位变 动条件下树坪滑坡的变形模式
RAPID AND LONG-TRAVEL MECHANISM OF QIANJIANGPING LANDSLIDE AND DEFORMATION MODEL OF SHUPING LANDSLIDE IN THREE GORGES RESERVOIR AREA, CHINA
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摘要: 位于长江支流青干河的千将坪滑坡在三峡工程首次蓄水后,产生高速远程滑动,造成了巨大灾害。本文通过高速环剪仪对千将坪滑坡的滑带土进行试验研究,考察了老滑坡产生高速滑动的机理。位于长江主流的树坪滑坡从2003年6月开始一直处于活跃的变形状态。本文通过对3a多现场监测资料的分析,讨论了树坪滑坡受库水位下降及降雨影响的变形模式。Abstract: After the first impoundment of the Three Gorges Reservoir, the Qianjiangping landslide, which is located in Qingganhe River, a tributary of Yangtze River, slid rapidly and travelled for long distance. Through ring shear tests on the samples taken from the sliding zone of the landslide, the mechanism was clarified. The Shuping landslide shows active deformation after the first impoundment. Its deformation model was analyzed based on the monitoring data for more than three years.
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