电力铁塔及软弱夹层下顺层岩质边坡稳定性评价
Stability Evaluation of Bedding Rock Slope Under Weak Interlayer of Electric Power Tower
毛吉成 1刘永 1甘小迎 1杨建华 1邓杰文1
作者信息
- 1. 中国电建集团贵州电力设计研究院有限公司,贵州 贵阳 550002
- 折叠
摘要
以贵阳市某输电线路工程为例,通过铁塔施工前后对含软弱夹层的顺层岩质边坡采用GTS NX软件建模分析,得到在含软弱夹层的顺层岩质边坡中,软弱夹层对边坡的变形失稳起着决定性作用.同时该边坡在铁塔施加后由于铁塔上部荷载较重,荷载通过基础传递到坡体内部,导致边坡变形位移量有所增大,塑性变形区分布位置下移,边坡稳定性系数有所降低,但锚索受力情况整体变化不大.整体来说铁塔的施加对边坡影响较小.
Abstract
Taking a power transmission line project in Guiyang as an example,uses GTS NX software to model and analyze the bedding rock slope with weak intercalation before and after the Iron Tower is applied,the weak interlayer plays a decisive role in the deformation and instability of the slope.At the same time,due to the heavy load on the upper part of the tower,the load is transmitted to the inside of the slope through the foundation,which results in the increase of the displacement of the slope and the downward displacement of the plastic deformation area,the stability coefficient of the slope is decreased,but the stress of the cable is little changed.As a whole,the influence of iron tower on slope is small.
关键词
铁塔/软弱夹层/顺层/锚杆/稳定性/数值模拟Key words
iron tower/weak interlayer/bedding/bolt/stability/numerical simulation引用本文复制引用
出版年
2025
国家科技期刊平台
NSTL
万方数据