圆弧滑动条分法在滑坡稳定分析中的应用

摘要

For landslides composed of homogeneous clay, their most dangerous status is slip surface shape approximate to circular arc. Together with safety factor of slip circle near the most dangerous slip surface altered little, thus the circular arc sliding slices method can be used in estimation. Through the circular arc sliding slices method carried out estimation for stability safety factor of a homoge⁃neous clay landslide at a coalmine living quarter retaining wall front, the result has shown that the landslide in an unstable state. Slope protection measures have: to set checkered latticework along slope dip and strike, and reinforcing by anchor bolts, supplemented by measures including turfing in checkered latticework, slope toe dwarf wall retaining. The governing effect is excellent, and accomplished comprehensive slope treatment object.%由均质黏土组成的滑坡，其真正最危险滑动面形状接近于圆弧，同时在最危险滑动面附近的滑弧，其安全系数变化很小，因而可以采用圆弧滑动条分法计算。通过应用圆弧滑动条分法对某煤矿生活区挡墙前缘处一均质黏土滑坡的稳定安全系数进行计算，结果显示该滑坡处于不稳定状态。通过顺边坡倾向和沿边坡走向设置方格状格构进行护坡，并采用锚杆进行加固，辅之以方格形骨架内草皮护坡、坡脚矮脚墙支挡的工程处治措施，治理效果良好，达到了对边坡综合处治的目的。