清子高速某工程滑坡诱发机制及治理模拟

以清子高速某场地工程滑坡为研究对象.该工程滑坡的形成从地质条件上来看受下伏砂质粉土软弱层影响极大，该层遇水饱和后强度下降极大.从工程条件来看，由于修建服务区开挖坡脚，破坏了原始应力平衡，产生了一个有利于滑坡产生的临空面，两种因素共同导致该工程滑坡的发生.本文采用FLAC3D模拟软件模拟场地开挖后滑坡的发生机制，模拟结果验证了分析的准确性.治理措施拟采用抗滑桩.使用FLAC3D模拟软件对该抗滑桩加固效果进行模拟，结果表明，用抗滑桩治理后，滑坡整体将处于稳定状态.

INDUCEMENT MECHANISM AND TREATMENT SIMULATION OF AN ENGINEERING LANDSUDE ON QINGZI EXPRESSWAY

The engineering landslide on Qingzi expressway is taken as the research object.Geologically,the formation of landslide is greatly affected by the underlying soft sandy silt layer,of which the strength decreases greatly when saturated with water.From the engineering conditions,due to the slope toe excavation for construction of service area,the initial stress balance is destroyed to generate a free face conductive to landslide.The above two factors together lead to the occurrence of engineering landslide.The FLAC3D software is used to simulate the occurrence mechanism of landslide after excavation,and the results have verified the accuracy of the analysis.The anti-slide pile will be adopted for the treatment measures.The strengthening effect of anti-slide pile is simulated by FLAC3D,and the results show that the landslide will be steady as a whole after the anti-slide pile treatment.