襄渝线雨泉沟滑坡成因分析及整治方案研究

The Research on Causes and Reinforcement Scheme of Yuquangou Landslide in Xiangyu Railway

雨泉沟滑坡属典型的顺层牵引式滑坡,因山体坡脚开挖修建厂房引起,造成隧道偏压且衬砌大面积产生裂缝,危及铁路运营以及滑坡舌前缘的建筑物安全。文中研究分析了滑坡与隧道衬砌结构变形的关系,结合测量、钻探、孔内测斜技术以及土工试验等勘察手段查明了滑坡要素特征,建议采用滑坡后缘减载方案,滑坡前缘设置抗滑桩加固,经实践证明取得了良好效果。

Yuquangou landslide is a typical tractive consequent landslide caused by building workshop and excavating the mountain slope. It makes the tunnel bias and produces large area crack on the lining, which endangerd the railway operation and building safety in front of the slide tongue. This paper analyzes the relationships between landslide and deformation of tunnel lining and identifies the characteristics of landslide factors by means of measure, drilling, hole inner inclined technology, geotechnical test and other investigation method, etc. Finally, this paper suggests to adopt the scheme of load reduction and setting anti-slide pile in front of landslide, and achieves good application results.