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1 地质条件及巷道支护现状淮南矿务局年产原煤1300万t以上,总进尺18万m。全局共有11对生产矿井,矿区分布在淮河两岸。淮河以南为老区,有七对生产矿井,可采煤层13～18层,为单斜构造,大部分属缓倾斜及倾斜煤层,局部为急倾斜煤层。现各矿均进入深部开采,平均采深在—500m以下。河北岸为新区,已有四对
1 Geological conditions and the status of roadway support Huainan Mining Bureau with an annual output of more than 13 million tons of raw coal, with a total footage of 180,000 m. The overall situation of a total of 11 pairs of production mines, mining areas located in the banks of the Huaihe River. There are seven pairs of production mines in the south of the Huaihe River. There are 13 to 18 layers of coal seams that can be exploited. They are monoclinic structures, most of which are gently inclined and inclined coal seams, and some are steeply inclined coal seams. The mines are now deep mining, the average depth of mining -500m below. Hebei Bank for the new district, there are four pairs