鹧鸪山斜坡变形体整治工程分析

Analysis of Treatment Engineering for the Slope Deformable Body of Zhegu Mountain

研究目的:鹧鸪山斜坡变形体是一个潜在的大型滑动斜坡变形体,处于蠕动变形阶段,如果遭到外界降雨或扰动作用极可能形成一个巨大的滑坡,造成317国道断道。本文针对该斜坡变形体研究和分析其形成的原因,提出可采取的整治措施并予以实施,保证该斜坡变形体的整体稳定,确保317国道的畅通。研究结论:通过对鹧鸪山斜坡变形体形成原因和处于蠕动变形阶段特征的分析,提出了在斜坡变形体下部采用抗滑桩、陡坡面采用锚索框架梁、中部采用深层抗滑键进行联合整治的措施,实施后有效地保证了该斜坡变形体的整体稳定,并经受住了四川汶川"5.12"特大地震和强降雨的考验。

Research purposes： The slope deformable body of Zhegu Mountain was a potentially large - sized sliding deformable body and it was in the creep deformation stage. The big landslide would probably happen under the effect of heavy rain or the external disturbance to interrupt the traffic of the National Highway 317. This paper studies and analyzes the reasons for formation of the slope deformable body and offers the measures to be taken for treating the slope deformable body to ensure the entire stability of the slope deformable body and smooth traffic of National Highway 317. Research conclusions： Through the analyses of the reasons for formation of the slope deformable body and the characteristics of slope deformable body in the creep deformation stage, the proposal was made the integral treatment had to be conducted. Namely, the slide - resistant pile was adopted for reinforcing the down part of the slope deformable body, the anchor- framed framework was adopted for reinforcing the steep surface and the deep foundation slide - resistant key was adopted for reinforcing the middle part of slope deformable body. After conducting these treatments, the slope deformable body was stable entirely and well stood the Wenchuan Earthquake and heavy rain.