In the course of carving out NO. 14 coalbed 404 of the east area in Sitai mine, it brings a lot of difficulties during digging that geologic structure is very complex in area of digging.
四台矿在开拓14号层404东部盘区过程中，盘区巷道所穿位置地质构造极其复杂，给盘区巷道的掘进带来了极大的困难。
In the production process of Huopu Mine, advance mining method was temporarily adopted in local area due to the impact of underground water and geologic structure in front of the working face.
火铺矿采煤工作面生产过程中，由于工作面前方受水及地质构造等因素的影响而局部地段临时采用前进式推进的方法进行回采。
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