Application of integrated water prevention and control technology in the working surface of isolated islands under "double high" conditions with large depth
Yan Xingda
Xingdong Mine, Jizhong Energy Corporation Ltd., Xingtai 054000, China
Xingdong Mine under -980 level as a deep mining area, in the deep mining area, there was five times of Ordovician limestone water burst, the risk of the water burst in the deep area increased significantly compared to the shallow area. 2129 working surface is located in the deep area of -980 level, the depth of burial is more than 1,000 m, it is an isolated working surface, the surrounding working surface has different degrees of water burst, affected by high pressure and high pressure water, the working surface with possible water burst during the recovery process. In order to effectively avoid water discharges, water prevention and control techniques such as surface area treatment, integrated physical exploration underground and hydraulic fracturing of the roof were used.
闫兴达. 孤岛工作面在大埋深“双高”条件下的防治水综合技术应用[J]. 煤炭与化工, 2020, 43(4): 54-56.
Yan Xingda. Application of integrated water prevention and control technology in the working surface of isolated islands under "double high" conditions with large depth. CCI, 2020, 43(4): 54-56.