基于FLAC数值模拟冲击地压矿井条带开采煤柱宽度研究  

Research on rockburst mine strip mining of coal pillar width based on FLAC numerical simulation

作　　者：孙学军 周莉 

机构地区：[1]山东省滕东生建煤矿,山东滕州277521

出　　处：《山东煤炭科技》2016年第7期1-3,共3页Shandong Coal Science and Technology

摘　　要：基于采区地质条件建立FLAC数值模型,模拟冲击地压矿井采区条带开采。对比分析工作面采90m留60m煤柱与采120m留80m煤柱两种条带开采方案的应力分布、位移变化及煤柱塑性变化的情况。研究结果说明适当的大采留比有利于减小煤柱的应力集中系数,缓解工作面的防冲困难,同时大采留比减少了掘进工作量,节约开采成本。Based on the geological conditions of mining area establish a FLAC numerical model, simulation of mining area of strip mining of rockburst mine. Comparative analysis of mining face 90m leave 60m pillar and mining face 120m leave 80m coal pillar two strip mining scheme, the change of displacement and stress distribution and plastic changes of coal pillar. The study results show that leave appropriate large coal pillar is conducive to reducing stress concentration factor alleviate the prevention of rockburst difficult of working face, at the same time large coal pillar reduce the tunneling work, save the production cost.

关 键 词：冲击地压矿井 条带开采 采留比 煤柱应力 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术] TD823.6[自动化与计算机技术—计算机科学与技术]