摘要
以某矿9-301综采放顶煤工作面为研究背景,研究该工作面的回采工艺。研究表明:9-301工作面采高为3.2m,割煤步距0. 8m,放煤厚度8. 6m,采用单轮顺序放煤方式,采放比1:2. 69,工作面采用端部斜切进刀方式。同时重点介绍了工作面回采的各个流程,对综采放顶煤大倾角工作面回采具有一定的指导意义。
Taking the 9-301 fully mechanized sublevel caving face in a mine as the research background, study the mining technology of the face. Research shows: 9-301 face height is 3. 2 m, coal cutting step is 0. 8 m, coal thickness is 8. 6 m, use single wheel sequential coal discharging method, caving ratios is 1: 2. 69,the face adopts the end bevel cutting method, focus on the various processes of the face. And it has certain guiding significance for fully mechanized sublevel caving large inclined angle face.
引文
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[3]宫培发,谭军.大倾角煤层综采放顶煤开采技术实践[J].煤矿安全,2002(11):21-23.