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瓦恩特(煤矿)井田以断层繁多而著称,而且其中部分断层含水和瓦斯量很多,所以,过去在掘进这些断层时困难很大,曾多次出现涌水、以及瓦斯和岩石突出的事故。据统计,自1971年以来,该矿井巷施工中共发生此类事故20起,共突出岩石910m~3,瓦斯最大释放量为150m~3/min。其中难掘进的断层有:1976年施工的-600m水平5-1号大巷中的西8号正断层;1976至1977年施工的-600m水平8号煤层探巷中的西8号正断层;1977年施工的-600m水平5-1号大巷中的瓦恩特断层。
Well known for its wide range of faults, the coal fields in Well are quite difficult to drive in these faults. In the past, there was frequent flooding and gas and rock outburst accidents. According to statistics, there have been 20 such incidents in tunnel construction since 1971, highlighting a total of 910m ~ 3 rock and the maximum gas emission of 150m ~ 3 / min. Among them, the faults which are difficult to excavate are: the -600m level constructed in 1976; the No. 8 normal fault in the No. 5-1 main road; the No. 8 normal fault in the No. 8 coal seam exploration road at the level of -600m constructed from 1976 to 1977; Construction of the -600m in 1977 Level 5-1 Lane in the Huate fault.