华南地质2025，Vol.41Issue(3)：613-622,10.DOI:10.3969/j.issn.2097-0013.2025.03.012
不同节理裂隙发育特征对废弃矿山岩质边坡稳定性的影响研究
Influence of Different Joint Fracture Characteristics on the Stability of Rock Slopes in Abandoned Mines
摘要
Abstract
The fissured high-steep rock slopes in abandoned mines pose a significant threat to the safety of nearby residents due to their instability and failure.To reveal the influence mechanism of different joint fissure characteristics on the stability of high-steep rock slopes,this study employs particle flow numerical simulation to analyze the effects of joint dip angle,spacing,and persistence on slope deformation damage.The simulation results indicate that stress concentration at the tips of joints that obliquely cut the slope surface easily induces vertical penetration of fissures along the joint axial direction,significantly reducing slope stability.Reducing joint spacing intensifies the interaction between adjacent joints,accelerates the penetration of rock bridges,and leads to large-scale instability of the slope.Meanwhile,an increase in joint persistence markedly decreases slope stability.As persistence increases from low to high,the damage modes of the slope mainly manifest as local deformation,preliminary formation of sliding surfaces,and overall sliding instability of the slope.The research findings analyze the influence of different joint fissure characteristics on slope stability from a mesoscopic perspective,providing a scientific basis for analyzing the damage evolution process of slopes in practical engineering and formulating mitigation plans.关键词
岩质边坡/节理裂隙/颗粒流模拟Key words
rock slopes/joint fracture/particle flow code simulation分类
天文与地球科学引用本文复制引用
王水华,于义军,梅红专,张磊,何文武,苟劲松..不同节理裂隙发育特征对废弃矿山岩质边坡稳定性的影响研究[J].华南地质,2025,41(3):613-622,10.基金项目
湖北省地质局项目(编号:KJ2024-36) （编号:KJ2024-36）
