摘要
山区输电线路不可避免的要将杆塔建立于山体陡坡处,而基础开挖过程中形成的弃土一般就近堆积于塔腿附近。统计表明,超过七成的山区线路灾害问题由弃土垮塌引发。因此,研究弃土诱发边坡破坏机制,针对性提出相对应的治理对策具有现实意义。本文以吴宁-朱云220 k V线路工程中某塔位作为研究对象,运用Geo-studio有限元分析仿真模拟软件,对塔位开挖弃土进行堆积前后稳定性及位移场分析,研究铁塔基开挖弃土诱发滑坡的变形破坏机制,最终作出分析评价。
In power transmission line project of mountain area, it is inevitable to establish the tower on the steep slope. nearest The spoil which is formed during foundation excavation piles near the tower generally. Statistics show that more than 70% mountainous route disasters are triggered by the collapse spoil. Therefore, the study of the formation mechanism and the corresponding countermeasures is of practical significance. Treating a tower in Wuning – Zhuyun 220 k V transmission line project as the research subject in this paper, We analyze slope stability and displacement field around the spoil pile by the method of Geo-studio FEM simulation software. Research the formation mechanism of the landslide induced by the spoil and give analysis and evaluation.
出处
《电力勘测设计》
2017年第1期6-9,共4页
Electric Power Survey & Design
关键词
山区输电线路
弃土
边坡
稳定性
mountain power transmission line
spoil
slope
stability
