摘要
为了研究复合边坡的破坏模式及变形控制技术等问题,对东明矿西帮复合边坡进行边坡稳定性分析。通过采用Midas GTS NX有限元数值模拟软件,基于有限元强度折减法和莫尔-库伦本构模型,分析控制前后复合边坡位移及剪切应变的变化规律。结果表明:复合边坡上部排土场边坡容易发生圆弧状滑坡,下部矿坑边坡容易发生坐落滑移式滑坡;且压脚变形控制技术对中下部被挤压软弱层的水平位移控制作用明显,极大削弱了复合边坡的整体剪切应变。
In order to study the failure mode and deformation control technology of composite slope,this article analyzes slope stability of west slope composite slope in Dongming Mine.Through adopting Midas GTS NX finite element numerical simulation software,based on the strength reduction method and mole-coulomb constitutive model,the article analyzes the variation law of displacement and strain of composite slope before and after control.The results show that the upper slope of the composite slope dump is prone to circular arc landslide,and the lower pit slope is prone to sit-slip landslide.Moreover,the deformation control technology of presser foot has obvious control over the horizontal displacement of the soft layer in the middle of the extruded layer,which greatly weakens the overall strain of the composite slope.
作者
郭海棣
王振伟
李元浩
黄科伟
林令鑫
弓启祥
GUO Haidi;WANG Zhenwei;LI Yuanhao;HUANG Kewei;LIN Lingxin;GONG Qixiang(North China University of Technology,Beijing 100041,China;China Coal Technology and Engineering Group Shenyang;State Key Laboratory of Coal Mine Safety Technology,Fushun 113122,China)
出处
《露天采矿技术》
CAS
2023年第5期89-92,共4页
Opencast Mining Technology
基金
国家自然科学基金面上资助项目(51774184)
北方工业大学毓优团队资助项目(107051360019XN134/017)
北方工业大学科研启动基金资助项目(110051360002)。
