不规则煤柱下巷道卸压解危技术研究与应用

Application and Research on Roadway Unloading Clearance Technology under Irregular pillars

3216外切眼处于四层煤柱高应力区域内,煤柱形似"刀把",与孙村矿发生冲击地压时的巷道布置极为相似。根据集团公司领导及专家对3216外切眼的安全评估,确定该巷道具有冲击危险性并被集团公司列为A级隐患,需对该巷道进行卸压解危。通过冲击地压防治技术措施对该区域采用由低应力区向高应力区进行卸压解危方式,并严格按照"先监测,后卸压,再检验"的原则对该巷道进行卸压解危及校验。

3216 outside cut at four levels of high stress area,coal pillar shaped like a ＆quot;knife＆quot;,and Suncun mine roadway arrangement of impact ground pressure occurs.Circumscribed 3216,according to Group leaders and experts to the safety assessment of the eye,to determine the roadway have impact and group company as grade A hidden danger, danger unloading should be carried out on the roadway.Through the impact ground pressure control technical measures adopted for the region by the low stress area to the high stress area of pressure relief clearance way,and in strict accordance with the ＆quot;pressure relief after monitoring,first,and then check＆quot;the principle of the roadway is unloading solution endanger check.