摘要
为了尽量提高煤炭资源的回收率,延长矿井服务年限,研究永久煤柱的合理回收方法十分重要。结合山西某矿开采条件,以数值模拟为手段,研究3#煤层12307工作面大区段保护煤柱的巷采回收技术,确定了合理的巷道间距和支护方式等相关参数。通过现场实践探索了大区段煤柱的回收技术。
In order to enhance the recycling rate of coal resource and prolong length of service,it is of great importance to study the method of recycling permanent coal pillar. Taking mining situation into consideration,this article uses numerical simulation to study alley recycling technology of large barrier pillar in workface 12307 of coal seam No. 3 in some coal mine,and selects the parameters of roadway interval and supporting pattern. It indicates that the recycling technology is effective by scene monitoring.
出处
《煤炭技术》
CAS
北大核心
2014年第11期143-145,共3页
Coal Technology
基金
河南理工大学硕士学位论文创新基金资助项目(2013-M-37)
关键词
区段煤柱
巷采
数值模拟
煤巷间距
锚杆支护
barrier pillar
alley mining
numerical simulation
roadway interval
bolting supporting
