煤矿安全2019，Vol.50Issue(2)：199-203,5.DOI:10.13347/j.cnki.mkaq.2019.02.047
采动过程中底板隐伏陷落柱突水数值模拟
Numerical Simulation of Water Inrush from Concealed Floor Collapse Column During Mining
摘要
Abstract
In order to find out the role of mining in the failure and water inrush of the surrounding rock of karst collapse column of the working face floor, taking the hidden karst collapse column of the floor of Geting Coal Mine as the research object, FLAC3D numerical simulation software was used to analyze and study the vertical stress field, plastic failure zone and vertical displacement changes in the mining process. The water inrush process of karst collapse column of hidden floor with different advancing distance is analyzed. The research results show that with the increasing of the advancing distance, the plastic failure range of karst collapse column is increasing, and the vertical displacement of the floor is increasing. When the plastic failure area of the coal seam floor is connected with the plastic failure area of the karst collapse column, water inrush accident of the karst collapse column of the floor is likely to occur.关键词
隐伏陷落柱/数值模拟/底板突水/推进距离/塑性破坏Key words
concealed collapse column/numerical simulation/floor water inrush/advancing distance/plastic failure分类
矿业与冶金引用本文复制引用
温兴林,王如猛,李兴东,王少强,杨志豪..采动过程中底板隐伏陷落柱突水数值模拟[J].煤矿安全,2019,50(2):199-203,5.基金项目
山西省高等学校科技创新资助项目(20161121) （20161121）
