三峡库区兴山县二里半滑坡稳定性分析

二里半滑坡是三峡库区的重要滑坡，其稳定性直接关系到兴山县高阳镇的安全，并对新县城土地利用意义重大。本文分析了二里半滑坡的形成条件，着重对滑坡在多种工况下分别采用剩余推力法和Sarma法进行了稳定性计算和比较，并对结果给予分析和评价，研究表明，水库蓄水及水位波动是影响滑坡稳定性的主要因素，三峡水库蓄水后，滑坡将发生失稳，必须加以治理，提出了滑坡失稳条件对工程的影响和工程处理措施。

Stability Analysis of Erliban Landslide in Xingshan County in Three Gorges Reservoir Area

The safety of the Erliban Landslide,one of the most important landslides in the Three Gorges Reservoir ,is directly related to the safety of Gaoyang town in Xingshan County, and also is important to the land use of new county town. This paper analyzes the formation terra of Erliban Landslide, and puts great emphasis to adopt the remaining push force method and the Sarma meshod to calculate and compare the stability under various circumstances, and then analyzes and evaluates the results. The study indicates,the water storage and water level variation are the main factors of insluencing the landslide stability, after the Three Gorges Reservoir has storaged,the landslide will take place to lose stability,and must be managed. At last we bring up the loss of stability term of the landslide and measures to handle with engineering.