长、短壁注浆加固技术在复采工作面中的应用

Application of Long and Short Wall Grouting Reinforcement Technology in Re-mining Working Face

大统矿业F9305工作面为布置在原9311工作面遗煤区域的复采工作面,为解决工作面煤体松散易片帮、冒落的问题,经过对工作面矿压显现的观测及研究,采取了长、短壁注浆加固技术对F9305面松散煤体、断层、老巷、采空区边缘位置进行注浆改造,工作面片帮、抽冒现象得到有效控制,取得了良好的效果。

The F9305 working face of Datong Mining Inustry is a re-mining working face arranged in the residual coal area of the original 9311 working face. In order to solve the problem that the coal body of the working face is loose and easy to fall, through the observation and study of the pressure behavior of the working face,the long and short wall grouting reinforcement technology is adopted to transform the loose coal body, fault, old roadway and goaf area edge position of the F9305 face, and the working face slope and extraction phenomenon are effectively controlled.Good results have been achieved.