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随着无轨自行设备在地下金属矿山的日益推广,国外出现了一种采用对角式运输斜巷的房柱采矿法。这一方法的特点,是根据自行设备的爬坡能力,在采矿场内布置相应的伪倾斜运输巷道(即对角式斜巷),从而扩大了自行设备在房柱采矿法的适用范围。下面介绍这一方案在两个矿山的应用情况。(一)西德《沃利费尔瓦特》铁矿1.概况矿床赋存在厚约30～50米的石灰岩中,矿体厚度3～6米,平均5米,倾角16～18°,上下盘围岩都相当稳固。矿山年产矿石100万吨左右,全部用房柱采矿法开采。1962年以前,采用电耙运搬,逆倾斜方向分梯段回采,矿房宽9
With the trackless self-equipment in the underground metal mine promotion, there has been a diagonal transport diagonally outside the house and column mining law. The characteristic of this method is that the corresponding pseudo-inclined transport lane (ie diagonal inclined lane) is arranged in the mining yard according to the climbing ability of the self-propelled equipment, thereby expanding the scope of application of the self-equipment in the method of house-column mining. The following describes the application of this program in two mines. (I) Iron Wharf in Western Germany “Wailifalvat” Iron Ore Overview An ore deposit is found in limestone with a thickness of 30 to 50 meters. The ore body is 3 to 6 meters in thickness with an average of 5 meters with an inclination of 16 to 18 degrees. Surrounding rocks are quite stable. Mine annual output of 1 million tons of ore, all with column mining method mining. Prior to 1962, the electric rake was used for moving and anti-tilting direction was divided into sections for mining. The mine house was 9 in width