陈家大院岩体滑坡稳定性研究

A Stability Analysis of the Rock Slope of Chenjiadayuan Zone

陈家大院岩体滑坡体地质条件复杂,其稳定性直接影响鲤鱼塘水库工程的进展。从研究区域的地质环境入手,分析了工程区域的地貌地质特征,由此获得符合实际的计算模型,在此基础上对在重力场作用下研究区域的边坡稳定性采用ADI-NA8.1程序进行了非线性有限元的数字模拟分析,分析了边坡中的应力场,不平衡力等;同时采用了边坡稳定性极限平衡分析软件对不同工况条件下的滑坡稳定性进行了安全系数计算,并得出了天然条件下该滑坡体主滑面稳定性现状良好,但前缘难以保持长期稳定的结论,以此提出了一些加固处理的建议以供建设时参考。

It is worth paying close attention to the problem that the stability of Chenjiadayuan rock slope might directly influence the construction progress of Liyutang hydro project Base on the geological investigation; an objective calculation model is established. The stability of rock slope is computed and analyzed with FEM program of ADINAS. 1 in gravitation stress. The stress field and unbalanced force in slope are analyzed. The software for slope stability limit equilibrium are also used to analyze the stability of the slope in different operating modes and calculate the safety factor of slope. It is concluded form the results of analyses that： the main slid face of the slope are stable now but the advancing edge of the slope can not keep long-term stability, So some suggestion and treatment measure for strengthening the slope are concluded to provide the reference in construction.