东关滑坡稳定性及治理措施研究

Research on Stability and Treatment Measures of Guandong Landslide

以含山县林头镇东关中学后山不稳定边坡为例,采用工程地质调查评价法、极限平衡分析法研究边坡的稳定性和滑动趋势。根据滑坡现状及特征提出合理的整治措施。研究表明:滑坡为浅表层推移式滑坡,滑坡体物质成分主要为弃渣土及残坡积碎石土,当受到暴雨侵蚀时,其状态为欠稳定~不稳定,在雨水作用下,滑坡会发生滑移现象,导致其失稳。基于此,建议工程治理方案为削坡+排水+抗滑桩,该方案具有土石方量较小,削坡范围小,基本不会对后缘山体产生等特点。

Taking the unstable slope of Dongguan Middle School in Lintou Town,Hanshan County as an example,the stability and sliding tendency of the slope are studied by means of engineering geological investigation and evaluation method and limit equilibrium analysis method.According to the present situation and characteristics of landslide,reasonable remediation measures are put forward.The research shows that the landslide is a shallow surface sliding landslide,and the material composition of the landslide is mainly waste soil and residual slope gravel soil.When the landslide is eroded by heavy rain,its state is not stable to unstable.Under the action of rain,the landslide will slip,resulting in its instability.Based on this,it is suggested that the project treatment scheme is slope cutting + drainage + anti-slide pile,which has the characteristics of small amount of soil and rock,small slope cutting range,and basically will not produce on the back edge of the mountain.