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１９９９年８月３１日１３：３７，鹤壁矿务局九矿２２０２采煤工作面在出切眼采煤时发生了推垮型冒顶事故，冒顶长４．５ｍ，致死一人。１事故地点概况及事故发生经过 发生事故的２２０２工作面位于九矿二水平二采区西部，工作面走向长 １９０ ｍ，倾斜长 ８２ｍ，煤层为单料?
August 31, 1999 13:37, Hebi Mining Bureau, 902 mining 2202 coal mining face in the case of the outgoing coal mining overturned fall accident occurred, take the roof length 4.5m, killing one person. 1 Overview of Accident Location and Accident Occurred after accident 2202 is located in the second section of No. 9 mine two western two mining area, working face length of 190 m, tilt 82m long, the coal as a single material?