Abstract:
Shenfu Coalfield is one of the important coalfields in China.In recent years, with the deepening of resource development, the problem of preventing and controlling old goaf water disasters has become increasingly prominent.We introduced a typical case of the whole process prevention and control of old goaf water in Hongjian Coal Mine.Firstly, the overview of the mine and the characteristics of the current situation of water hazards in old goafs were described.The prevention and control measures for water hazards in old goafs were mainly based on “exploration and drainage”,which were carried out through geophysical exploration and drilling verification cycle operations.When designing drilling holes, it is necessary to combine geophysical exploration results and fully consider the hydrogeological conditions of the working face, scientifically and reasonably arranging drilling holes.Prior to construction, we conducted a review and publicity of the design of water exploration and safety measures, and had professional personnel calibrate the drilling parameters on site; carried out process supervision during construction, strictly followed the design requirements for drilling construction, and kept records and acceptance checks.After the water discharge was completed, we conducted geophysical exploration of the flooded area.Collaborative measures such as water interception, isolation, prevention, and emergency response were adopted.