煤矿立井过采空区探测和治理技术

Detection and Control Technology of Mine Shaft Sinking Passed Through Goaf

立井井筒施工接近采空区时,易造成采空区积水突水、瓦斯涌出等事故,严重影响施工安全,同时治理困难。塔山煤矿四盘区回风立井施工中,为解决上述问题,通过对采空区进行实测勘探,结合收集整理的该区地质资料,确定了井筒通过采空区的范围和隐蔽灾害情况。井筒通过采空区施工时,采用灌注结合、井壁加固等技术,对采空区进行治理,取得预期效果。

When the mine shaft construction closed to the goaf,a standing water inrush,gas emission and other accident would be easily caused in the goaf,would seriously affect the safe construction and would be difficult to be controlled.During the construction of the mine air return shaft in No.4 Block of Tashan Mine,in order to solve the above problems,a field survey and exploration was conducted on the goaf and the geological information of the block was collected and prepared.Thus the scale of the mine shaft passed through the goaf and the potential disaster condition were determined.When the mine shaft construction passed through the goaf,the pouring and grouting combination,mine shaft reinforcement and other technology were applied to control the goaf.The expected results were obtained.