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湖南省桂阳县三五煤矿于1979年5月21日零时4分在该矿大冲新井+370米水平北二石门揭煤放炮时,发生了一次特大型煤与沼气突出,突出煤量约3000吨,喷出瓦斯量55万米~2。时隔仅14个小时21分在距第一次突出地点水平距10米左右,垂高52米,斜距53米处的三五冲老井+420米水平三横巷+424中间巷采煤工作面又发生了约60吨煤与沼气突出,此次突出瓦斯量83万米~3。根据对突出区域的现场实际调查和初步分析,这前后两次突出有着内在的密切联系。我们认为,这样的异常突出现象在国内
On March 21, 1979, at 0:40 on May 21, 1979, a coal mine of Guiyang County, Hunan Province, at the time of exposing the coal to the North Second Stone Crossing at the level of +370 meters at Da Chongxin Well of the mine, About 3,000 tons of gas output of 550,000 meters ~ 2. Only 14 hours after the interval of 21 points in the first prominent place horizontal distance of about 10 meters, 52 meters down, slanting distance of 53 meters at the old red sand wells +420 meters level three horizontal lane +424 middle lane coal mining Approximately 60 tons of coal and biogas were also found on the face, highlighting that the gas output was 830,000 m 3. According to the field survey and preliminary analysis of the prominent areas, there are intrinsically close relations between these two prominences. In our opinion, such anomalous phenomena are prominent at home