舟曲县毛家村滑坡形态特征及稳定性分析

Analysis on Morphological Characteristics and Stability of Maojiacun Landslide in Zhouqu County

本文通过区域调查对甘肃省舟曲县毛家村滑坡的形态特征进行了分析,计算了滑坡在不同工况下的稳定性系数。结果发现,在天然状态下,滑坡基本稳定;在工况2(自重+暴雨)和工况3(自重+地震)下,滑坡基本不稳定或处于欠稳定状态,无论哪种情况,都需要立即对滑坡进行治理。

This paper analyzed the morphological characteristics of Maojiacun landslide in Zhouqu County,Gansu Province through regional investigation,and calculated the stability coefficient of the landslide under different work⁃ing conditions.It is found that the landslide is basically stable in its natural state;under working condition 2(self weight+heavy rain)and working condition 3(self weight+earthquake),the landslide is basically unstable or in an under-stable state,in either case,the landslide needs to be treated immediately.