走向回采工作面排水系统改造及综合利用

Reconstruction and Comprehensive Utilization of Drainage System on Strike Mining Working Face

走向长壁回采工作面通常回风巷标高高于运输巷,采空区积水会全部涌入运输巷,并通过运输巷排出工作面,因此主排水阵地也通常设在运输巷。但当运输巷遇到背斜,造成巷道标高抬高,直至高于回风巷时,会使采空区积水大量进入工作面并涌入回风巷,给工作面的生产带来严重影响,并对回风巷的排水工作造成极大困扰。分析了在这种情况下排水系统设计存在的问题,提出了改进办法。改进后,成功解决老空水排水问题。

In the strike longwall mining working face, the elevation of the top laneway is usually higher than that of the bottom, goaf water will swarm into the bottom,and will be discharged there,so the main drainage battle field is usually located at the bottom laneway. But if the bottom laneway barge up against the anticline,it will make the elevation of bottom laneway higher, until exceed that of top laneway,large-area goaf water will run into the working face and flow into the top laneway. This can bring serious influence to the production, and cause a great disturbance to water discharging in the top laneway. It described how to reconstruct the drainage system under this conditions. After being improved,the problems of goaf water drainage were resolved.