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长江三峡库区地质条件复杂,2008年9月175 m试验性蓄水以来,据统计全库区发生滑坡200余处,塌岸100余处,涌浪灾害逐步显现。巫山县巫峡峡口龚家方于2008年11月23日发生崩塌,产生的涌浪高13 m,严重威胁长江航道的安全。本文对巫峡龚家方至独龙一带斜坡的变形破坏机制进行了分析,预测了斜坡变形的破坏模式,对下一步的监测预警工作具指导作用。
Geological conditions in the Three Gorges Reservoir area are complex. Since the experimental reservoirs of 175 m in September 2008, more than 200 landslides and more than 100 bank collapses have occurred in the whole reservoir area, and the surge disaster gradually appears. Gongjiafang at Wuxiaxia Gorge in Wushan County collapsed on November 23, 2008 and the resulting surge was 13 m high, seriously threatening the safety of the Yangtze River waterway. In this paper, the deformation and failure mechanism of slopes from Gongjiafang to Dulong in Wujiagou are analyzed, and the failure modes of slope deformation are predicted, which will be instructive to the next step of monitoring and early warning.