导水裂隙带发育规律及探放水技术研究

Study on Development Law of Water Guiding Fracture Zone and Technology of Water Exploration and Drainage

为防止鑫顺煤业15101首采工作面回采过程中与顶板含水层或上覆4#煤老空水等水体贯通造成水灾事故,采用回归分析的方法确定了工作面覆岩导水裂隙带发育高度在130 m左右,结合工作面地质条件,结合对工作面探放水方案进行具体设计,并进行效果验证。结果表明:该次探放水量共计11.6万m 3,15101工作面安全回采的顶板多含水层及4 #煤层老空区积水已成功探放,为工作面安全回采提供了保障。

In order to prevent the water accident caused by the roof aquifer or the overlying No.4 coal old water in the mining of the first working face in Xinshun Coal Industry, the Regression Analysis method was used to determine the hydraulic fracture of the working face. The development of the aquifer belt is 130 m above, combined with the geological conditions of the working face, the specific design of the working surface water release is conducted, and the effect verified. The results show that the total amount of water for exploration and release is 116,000 m 3, and the multi-aquifer in the roof of the 15101 working face and the water in the goaf area of the No.4 coal seam have been successfully explored, which provides a guarantee for safe mining of the working face.