车寨矿井采煤工作面通风方式的比选和确定

Comparison and Selection of Ventilation Mode in Mining Face of Chezhai Colliery

车寨矿井属高瓦斯矿井,煤尘无爆炸危险性,煤层不易自燃;采用放顶煤一次采全高采煤方法;采煤工作面可采用"U+L型"、"双U型"、"Y型"三种通风方式,经过比较优缺点,最终确定选用"双U型"通风方式,并在生产实践中取得较好的效果,为矿井的安全生产提供了保障。

Chezhai Colliery belongs to high--gas mine with non--explosive--hazard coal dust and nonflammable coal seam, which is extracted by ways of roof caving and one--pass full--height mining. By comparison of three ventilation modes-- ＂U-- and-- L-- shaped＂, ＂double-- U-- shaped＂ and ＂Y-- shaped＂, the author determines the application of double--U--shaped ventilation mode, which is proved to guarantee the safety production with good effects.