煤矿安全2024，Vol.55Issue(6)：169-175,7.DOI:10.13347/j.cnki.mkaq.20231020
降雨入渗作用下基底倾角对内排土场边坡变形的影响
The influence of base inclination on slope deformation of inner dump under rainfall infiltration
摘要
Abstract
In order to study the influence of basement inclination on the stability of the dump slope under rainfall conditions,accord-ing to the actual situation of Antaibao Open-pit Coal Mine,FLAC3D software was used to simulate the slope of the dump under the same rain intensity and different base inclination angles.The results show that in the early stage of rainfall,the saturation of the sur-face layer of the dump slope first grows rapidly and tends to the stable value of unsaturation,and when the rainfall infiltrates to the junction of the weak layer and bedrock,the rainwater accumulates at the slope angle under the action of gravity and leads to shear failure at the slope angle.With the increase of the basement inclination,the time lag effect occurred in each monitoring point when it reached saturation or steady state,and the displacement and strain increment were positively correlated with the substrate inclination.关键词
内排土场/边坡变形/边坡稳定性/FLAC3D/流固耦合/降雨入渗作用Key words
inner dump/slope deformation/slope stability/FLAC3D/fluid-solid coupling/rainfall infiltration effect分类
矿业与冶金引用本文复制引用
王振伟,李元浩,韦永豪,黄科伟,姜海涛,程瑶..降雨入渗作用下基底倾角对内排土场边坡变形的影响[J].煤矿安全,2024,55(6):169-175,7.基金项目
国家自然科学基金面上资助项目(51774184) （51774184）
北方工业大学毓优团队资助项目(107051360019XN134/017) （107051360019XN134/017）
北方工业大学科研启动基金资助项目(110051360002) （110051360002）
