潮惠高速公路路堑边坡滑坡分析与治理

Analysis and control scheme of the slope landslide of the highway graben in Chaohui area

为了对高速公路路堑高边坡的滑坡机理及治理方案进行探讨和研究,以潮惠速公路一路堑高边坡为例,运用大型有限元软件ABAQUS,结合强度折减法,对边坡滑坡治理前、后的状态进行了模拟分析。研究结果表明:边坡在采用合理的治理方案后,其稳定性会显著提高,边坡的安全系数会增加,位移会明显减小。在对滑坡进行治理时,宜采用卸载结合锚杆加固的处治方式,同时还需修建排水和防水设施,使边坡能保持长期的稳定。该结论对同类型边坡的滑坡治理有借鉴作用。

In order to discuss and study the landslide mechanism and control scheme of the highway cutting high slope,the high slope of a highway from Zhaoshan to Huizhou was taken as an example,large finite element software ABAQUS and combining strength reduction method was used to analyze the state of the slope landslide before and after the treatment.The results show that the stability of the slope can significantly be changed after adopting reasonable treatment plan,the safety coefficient of the slope was increased,and the displacement was decreased obviously.According to the engineering situation,we can conclude that the disposal method of unloading combined with anchor rod reinforcement was suitable for the treatment of the landslide,and the drainage and waterproofing measures need to be built to keep the slope stable for a long time.