1988年10月19日,徐州矿务局垞城煤矿三名领导干部下井检查工作时,不幸窒息身亡。直接经济损失达四万余元。事故原因虽然简单,但颇耐人寻味!事故发生地点位于3103工作面。该面掘进过程中发现一斜交断层,为了回采方便将该面分上、下两个盘面,在上盘面重新穿一条斜材料道,倾角平均为24°,在下盘面穿一条跳岩子切眼和斜溜子道并 October 19, 1988, Xuzhou Mining Bureau Tancheng coal mine three leading cadres to go down inspection, unfortunately suffocating death. Direct economic loss of 40,000 yuan. Although the cause of the accident was simple, it was thought-provoking! The accident occurred at 3103 face. For the purpose of mining convenience, the upper and lower disks of the surface are re-pierced by a slant material channel on the upper disk surface with an average inclination angle of 24 °. A cut-rock cutout is worn on the lower disk surface and a cut- Diao child road and