新原高速公路雁门关隧道出口段滑坡勘察及治理

Survey and Control of Landslide at the Exit of Yanmenguan Tunnel of Xinyuan Freeway

本文对水沟滑坡的形成及滑动机理进行了分析 ,对滑坡的稳定性进行了计算 ,得出不同状态下滑坡体的稳定系数及滑坡推力 ,并根据滑坡体与设计路线工程的关系 ,提出了在坡体中下部结合桥墩设置抗滑桩、坡体内及周界外设置截排水沟。

The formation and sliding mechanism of Suigoupo landslide are nalyzed. Based on evaluation of landslide stability, the stability coefficients and sliding force are obtained for different conditions. According to the relationship between then landslide mass and designed route of the freeway, a scheme for landslide control is made which includes putting anti-sliding stakes in the mid-lower section of the landslide mass, cutting drain ditches in the landslide mass and on the surface of it and filling hollows and fissures on the surface of the slope.