凤爪沟边坡稳定性评价

主要研究了一个边坡在施加冷却塔荷载前后的稳定性问题。采用有限元法和摩尔-库仑屈服准则计算和分析了冷却塔荷载对边坡稳定性的影响,得到较理想的结果。结果表明,边坡的整体稳定性问题,主要是变形稳定性问题;玄武岩柱状节理的存在对边坡稳定性产生了不利的影响;冷却塔的修建对边坡稳定性是有影响的;边坡的变形破坏随时间的增长而增加;边坡的破坏形式以倾倒破坏为主。

STABILITY ANALYSIS OF SLOPE AT FENGZHUAGOU FOR JINGYU NUCLEAR POWER STATION

The paper studies the problem of a slope stability under the condition of before applying load and after applying load .The problem is analyzed and computed under the condition of applying cooling tower load by using finite element method and Mohr-Coulomb yielding criterion .From the result obtained we draw some conclusions: The stability of whole slope is mainly related to the deformation stability; The existence of columnar joint has adverse effect to the slope stability; The stability of slope is influenced by the cooling tower; The deformation of slope is enhanced with the growth of time; The main damage form of slope is toppling.