广东水利水电Issue(10)：36-41,6.
基于离散元法的层状岩质边坡失稳对隧洞影响效应分析
Discrete Element Analysis of Tunnel Impact Induced by Instability in Layered Rock Slopes
潘哲 1关世豪2
作者信息
- 1. 广东省水利水电科学研究院,广州 510635||广东省岩土工程技术研究中心,广州 510635
- 2. 昆明理工大学,昆明 650500
- 折叠
摘要
Abstract
This study conducts a comparative analysis of the instability mechanisms of layered rock slopes containing pro-dip and anti-dip joints and their impacts on water-conveyance tunnels using the discrete element method(DEM).Slope instability was induced via a gravity amplification method,and monitoring data from slope surfaces and tunnel peripheries were analyzed to reveal the differential sliding characteristics and disturbance patterns on adjacent tunnels governed by rock layer orientation.The results demonstrate that pro-dip slopes exhibit broader sliding zones with deep-seated failure surfaces,whereas anti-dip slopes experience limited shallow sliding without significant deep-seated damage.Although the maximum displacement of pro-dip slopes is marginally lower than that of anti-dip slopes,the total displacement of the upper tunnel-surrounding rock masses in pro-dip slopes significantly exceeds that in anti-dip slopes.The disparity in dip direction leads to distinct sliding morphologies and disturbance ranges,with pro-dip slopes imposing more pronounced perturbations on the upper tunnel regions.This research provides a theoretical basis for evaluating the stability of layered rock slopes and optimizing protective strategies for water-conveyance tunnels.关键词
离散元法/层状节理/边坡滑移/位移监测Key words
discrete element method/layered joints/slope sliding/displacement monitoring分类
建筑与水利引用本文复制引用
潘哲,关世豪..基于离散元法的层状岩质边坡失稳对隧洞影响效应分析[J].广东水利水电,2025,(10):36-41,6.
