巷采采空区综合机械化复采技术实践

Practices on Secondary Mining Technology of Goaf Coal Pillars in Previous Gateway of Fully Mechanized Coal Mining Face

为了提高煤炭资源回收率,缓解采掘接替,实现综采工作面的安全高效复采,文章介绍了综采工作面过老巷安全掘进技术以及综采工作面过老巷安全回采工艺,指导综采工作面复采工作顺利完成。荡荡岭煤矿巷采采空区综合机械化复采工程实践表明:对巷采采空区不进行复采,工作面采出率仅有55.50%;若进行复采,则工作面采出率可高达96.67%。通过不断地完善和发展巷采采空区复采技术,为巷采采空区安全高效复采提供科学可靠的技术途径。

In order to enhance the recovery rate of coal resources, and alleviate the alternation of mining and driving, and to achieve safe and high - efficient re - mining of fully mechanized mining face. The paper detailed the technology measures of old roadway secure driving in fully mechanized mining face and the safety mining technology of fully mechanized mining face crossing old roadway. The engineering practice of re - mining technology in old - entry goaf of fully mechanized mining face shows that, the recovery rate of working face is 55.50% without the re - mining of old - entry goal, and with re - mining of the goaf, the working face recovery rate reaches 96. 67%.