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刘冲矿1~#矿体—230m中段T544线矿体节理发育,局部风化不稳固。该段矿体倾角大于70°,矿体平均厚度为3.5m。在电耙巷道的支护中,以往多用木支护,缺点是支架易被拉垮造成电耙道冒落,影响矿石运搬,严重时整条耙道报废。对比,该矿采用了快硬水泥锚杆支护,支护效果较好,回采速度和矿石回收率均有所提高。
The ore-body joints of T544 line in the middle section of No.130 ore body and Liu3030m middle part of Liuchong Mine are developed with local weathering unstable. The dip angle of this section is greater than 70 ° and the average thickness of the ore body is 3.5m. In the rake of roadway support, in the past with more wood support, the disadvantage is that the bracket is easily pulled down caused by electric rake roadworks, affecting ore transport, serious rake Road scrap. In contrast, the mine uses a quick-hardening cement bolting support, supporting effect is good, recovery rate and ore recovery rates have increased.