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我矿沃溪矿区系缓倾斜、极薄至中厚矿床.矿石为石英脉及赋存于蚀变围岩中的石英网脉,f=8～12,较稳固.围岩为板岩,f=4～6,断层、节理、层理发育,不稳固.采矿方法以削壁充填法为主,其次为房柱法、尾砂密接充填法,其比重分别为57%,26%、17%.该矿区应用喷锚支护技术是从六十年代中期开始的.1977年后,相继在大断面井巷、硐室和采场中大量使用.实践证明,喷锚支护是一种高效、经济、可靠的支护方
Ore Mine Creek area is gently inclined, extremely thin to moderately thick deposits.Iron quartz veins and quartzite veins in the alteration surrounding rock, f = 8 ~ 12, more stable.The surrounding rock is slate, f = 4 ~ 6, the faults, joints and bedding development are not stable.The method of mining is dominated by wall-cut filling, followed by the method of post-mortem and tail-sand filling with the proportion of 57%, 26% and 17% respectively. The application of shotcrete and bolt support technology in the mine started from the mid-1960s and was used in large numbers in large sections of shafts, caverns and stopes after 1977. Practice has proved that spray-anchor support is an efficient and economical method , Reliable support square