Integrated Water Exploration and Drainage Technology of Multi-layer Goaf in Yungang Mine
The causes of water filling in the surrounding space of 8409 working face of 8#coal seam were discussed,the amount of water and water pressure in the goaf were estimated by using the transient electromagnetic geophysical exploration verification method,and the water exploration and drainage scheme and the consolidation measures of the orifice were established.The measure drainages water to the low-lying reference point by using the boreholes for centralized drainage,and at the same time adopts the comprehensive integrated exploration and drainage technology of"simultaneous multi-layer drainage"and the scientific management method of"two kinds of drainage"to realize the safe and efficient exploration and drainage of various kinds of goaf water in 8409 working face,effectively eliminating the mine water disaster,and ensuring the normal replacement and safe production of the working face.
goaf watermine floodwater exploration and drainage planorifice consolidation
万方数据
维普
