后溜矸石填隙放顶煤开采法

Sublevel Caving Mining with Slipped Gangue

煤炭资源面临枯竭,实现煤炭资源最大利用率十分重要。开采厚煤层的重点是综采放顶煤,与传统的采煤方式相比,它具有明显优势,简称"三二一","三"即三高(高产、高效、高块率)、三简(巷道布置简单、辅助运输简单、通风简单),"二"即二低(低掘进率、成本低)、二好(经济效益好、安全好),"一"即一少(设备投资少)。

The coal resources are exhausted, the rate of maximum utilization of coal resources is very important. The key of mining thick coal seam is fully mechanized caving method, compared with the traditional mining methods, it has obvious advantages, referred to as ＂Three and Two and One＂, ＂Three＂ is the three high（high yield, high efficiency, high rate, and three simple（simple roadway layout, simple auxiliary transport,simple ventilation）, ＇ Two＂is the two low（low drivage rate, low cost, and two good（t good economic benefits, good safety）,＂One＂is one less（less equipment investment）.