topple mining

The problems of topple mining process at the great inclined seam production are analyzed, and feasible technology and management measureses and practical experiences in heavy inclined seam are also offered.
分析了高档普採中的仰斜開採工藝 ,在大傾角煤層生産過程中存在的問題。 提出了可行的技術琯理措施 ,爲在大傾角煤層中使用該採煤工藝提供了實踐經騐。