摘要
我国是世界滑坡地质灾害重灾区,特别是西南山区。位于云南省的宜良县月牙变电站滑坡严重威胁滑坡后缘的月牙变电站和前缘的乐力升生物科技有限公司,对该滑坡进行稳定性分析从而为后期治理提供科学依据是十分必要。在勘查钻探等资料的基础上,对主滑向2-2′剖面进行计算,计算出在自然工况、饱水工况、地震工况下的稳定性系数分别为0.96、0.80、0.79。通过SLOPE/W软件对3种工况建模进行计算验证,分别得出3种工况的稳定性系数为1.002、0.853、0.842。两种方法对比,SLOPE/W软件分析的滑动面是圆弧状,计算出的稳定性系数更加真实可靠。总体,该滑坡在饱水状态和地震状态时处于不稳定,存在滑动失稳的可能。
Our country is the heavy disaster areas of geological disasters in the world, especially in the southwest mountainous area. Yueya substation landslide is located in Yiliang county of yunnan province It seriously threats the substation in the trailing edge of landslide and the Lelisheng biological technology liability company. So, analysis on the basis of the exploration drilling data, for calculation of the main sliding into 2-2＇profile, calculated in the natural condition, the water--saturated conditions and the earthquake conditions stability in the cases of coefficient is 0.96, 0.80, 0.79, respectively. Through the SLOPE/W soft- ware to buliding modeling of three different conditions to calculation and verification, obtained three kinds of condition of the stability coefficient is 1. 002, 0. 853, 0. 842. Compared to two kinds of methods, the sliding surface of SLOPE/W software a- nalysis is arc shape, calculate the stability coefficient is more reliable. Overall, the landslide in Water--saturated state and Earthquake state is not stable, It exists the possibility of sliding instability.
出处
《地质灾害与环境保护》
2017年第2期6-11,共6页
Journal of Geological Hazards and Environment Preservation
