中南大学学报（自然科学版）2011，Vol.42Issue(7)：2115-2119,5.
层状岩体边坡锚杆加固效应的数值分析
Numerical analysis for stratified rock slope stability reinforced by bolts
摘要
Abstract
The stability analysis model was founded for the stratified rock slope by the numerical calculation software FLAC3D. The tri-spring bolt element was used to simulate the reinforcement of bolt in rock slope, to obtain the deformation of rock mass and stress distribution of bolt. The results show that the failure mode of the slope is the linear slippage, displacement of the slip block increases from the top to the bottom of slope, and the maximum horizontal displacement is located at the shear place of slope rock mass. After reinforced by the bolts, on the stratified rock slope, there will occur some certain deformation along the joint plane. The displacement of the monitoring points decreases along the slope natural surface, and the disturbance for the rock mass is decreased from the surface of slope to the internal of slope. There exist several peak values for the bolt axial stress along the bolt shaft due to the existence of the joint plane. Locations of the peak values are all at the place of joint plane, which indicates that the location of the maximum bolt axial stress can represent the slip surface location.关键词
层状边坡/锚杆/FLAC3D软件/位移Key words
stratified rock slope/bolt/FLAC3D software/displacement分类
建筑与水利引用本文复制引用
何忠明,蔡中心,曹平,刘建华,周莲君..层状岩体边坡锚杆加固效应的数值分析[J].中南大学学报（自然科学版）,2011,42(7):2115-2119,5.基金项目
国家自然科学基金资助项目(50774093) （50774093）
长沙理工大学人才引进基金资助项目(2009)湖南交通科技计划项目(2009003) （2009）
西部交通科技计划项目(2009318000048) （2009318000048）
