【摘要】 岱河煤矿是衰老矿井,由于受采场限制,常常出现没有时间装面的情况。为此,采取掘进装面一次成巷技术,不仅缓解了采掘接替,还大大降低了因装面出现的冒顶事故,避免了回收工字钢等工序,减少了因装面、运工字钢等出现的工伤事故。取得了显著经济效益,可加以推广。更多还原

【Abstract】 As Daihe Coal Mine stope and often face a lack of time for the equipment.To this end,take a roadway surface excavation equipment,not only ease the mining succeed,but also greatly reduced as a result of a cave equipped with surface to avoid the I-recovery processes to reduce surface as a result of equipment,such as the I-beam transport accidents.Achieved remarkable economic results can be replicated.key words a roadway surface coal mine drilling equipment.更多还原