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要在国际市场上竞争,加拿大采矿工业必须降低成本,提高生产能力,并保持高标准的安全性。当今,非常有必要改进方法,使之能超前于采矿探测地质构造,以减少贫化;监测地下结构物,以增强安全性。这将促进矿山勘探计划的优化,并以较低的成本提高产量。本文介绍两个采用新技术如岩层探测雷达(GPR)实现比较有效矿山计划的实例。在基德克里克矿2500和2600水平,采用GPR技术,目的在于:(1)监测底柱的稳定性;(2)测定底柱内浸染状硫化矿囊体存在的位置,以便回采矿量;(3)监测采场顶板和帮壁构造,以评价及时充填顺序的影响;(4)依据废石充填区内空洞和裂缝的存在,估计废石充填质量。在明托的新不伦瑞克煤矿,GPR与岩心记录数据一起用来测绘和构造分区梯段的三维块体模型,显示出煤层上覆不同岩层的相对位置。
To compete in the international market, the Canadian mining industry must reduce costs, increase productivity and maintain high standards of safety. Nowadays, it is very important to improve the method so that it can lead the geological exploration in mining to reduce the depletion and monitor the underground structure to enhance the safety. This will facilitate the optimization of mine exploration programs and increase production at a lower cost. This article presents two examples of more effective mine plans that use new technologies such as rock formation detection radars (GPRs). At the level of 2500 and 2600 at the Creek Creek Mine, GPR technology is used to: (1) monitor the stability of the bottom column; (2) determine the presence of disseminated sulphide capsules in the bottom column in order to recover the ore volume ; (3) monitoring the stope roof and wall structure to evaluate the impact of timely filling sequence; (4) estimating the quality of waste rock fill according to the existence of voids and cracks in waste rock fill area. At New Brunswick Minto, Minto, the GPR was used in conjunction with core record data to map and model a three-dimensional block model of a zoned step showing the relative location of different strata overlying the coal seam.