辽宁工程技术大学学报（自然科学版）2017，Vol.36Issue(10)：1015-1019,5.DOI:10.11956/j.issn.1008-0562.2017.10.002
倾斜煤层露天矿顶帮稳定性分析及空间形态优化
Stability analysis and space shape optimization of roof slope in open-pit mine with inclined coal seam
摘要
Abstract
Aiming at the stability and the space shape of the roof slope in open-pit mine with inclined coal seam,the method of two dimensional rigid body limit equilibrium combined with FLAC3D numerical simulation was applied to analyze the stability and then optimize its space shape of the inclined coal seam roof slope in Pingzhuang west open-pit mine.Study shows that:In Pingzhuang west open-pit mine,the landslide model is cut layer sliding bedding and it will occur at the bottom of weak layer A.The whole ultimate slope angle is 25°,whereas,it can be 62° below the level elevation of 452.For the open-pit mine with inclined coal seam,the stability coefficient Fs of roof slope decreases linearly with the slope angle increasing.By the method of two dimensional rigid body limit equilibrium combined with FLAC3D,the potential landslide model can be accurately analyzed,and the slope angle of the roof slope of open-pit mine with inclined coal seam can be improved,which ensures the slope stability and safety,and increases the coal resource recovery.关键词
倾斜煤层/弱层/顶帮/边坡稳定性/形态优化Key words
inclined coal seam/weak layer/roof slope/slope stability/shape optimization分类
矿业与冶金引用本文复制引用
曹兰柱,李广贺,王东..倾斜煤层露天矿顶帮稳定性分析及空间形态优化[J].辽宁工程技术大学学报（自然科学版）,2017,36(10):1015-1019,5.基金项目
国家自然科学基金(51104084,51474119) （51104084,51474119）
国家自然科学基金重点项目(U1361211) （U1361211）
辽宁省煤炭资源安全开采与洁净利用工程研究中心开放基金(LNTU15KF08) （LNTU15KF08）
