丹阳天王寺边坡稳定性评价及防治措施

Stability evaluation and prevention measures of the slope of the Tianwang Temple,Danyang,Jiangsu Province

针对苏南地区典型露采边坡的地层岩性及地质构造特点,以极限平衡理论为基础,运用GeoStudio软件中的SLOPE/W模块和VADOSE/W模块计算分析江苏丹阳天王寺边坡在天然工况、暴雨工况及地震工况下的稳定性。结果表明:天然工况下,潜在滑动面分布范围最小,稳定性最高,存在滑动的危险性;暴雨工况下,潜在滑动面分布范围有所增大,稳定性降低,边坡滑动的可能性较大;地震工况下,潜在滑动面分布范围最广,稳定性最低,边坡滑动的可能性很大。基于上述结果,提出防治措施。

In view of the stratum lithology and geological structure characteristics of typical opencast slope in the southern Jiangsu Province,based on the theory of limit equilibrium,the SLOPE/W module and VADOSE/W module of GeoStudio software are used to calculate and analyze the stability of the slope in natural working condition,rainstorm condition and earthquake condition of the Tianwang Temple,Danyang,Jiangsu. The results show that the potential sliding surface distribution is the smallest in natural working condition,the stability is the highest,and there is the risk of sliding; its range increases under the rainstorm condition,its stability decreases,the slope sliding probability increases,too; its range is the widest in the earthquake condition,the stability the lowest and the slope sliding is the most probably to occur. Based on the above results,the prevention measures are put forward.