考虑回采巷道尺寸影响的铲运设备选型

发布时间：2018-08-30 11:16

【摘要】：在铲运设备选型中,为了考虑回采巷道尺寸的影响,确定不同方案的巷道尺寸后,根据Q分级理论初步选择支护方式,建立数值模型模拟分析采场应力分布情况和安全系数。选取5种方案下采场的最大主应力、最小主应力、安全系数的最小值、铲运机的出矿台班效率和支护费用构成评价指标体系,建立铲运设备优选的模糊物元分析模型,采用变异系数法求取各评价指标的权重系数,最后得出5种方案的关联度分别为0.836 1,0.820 9,0.759 6,0.8632,0.839 4,按最大关联度原则,确定方案D(斗容为5 m3)为最优的铲运设备。评价结果表明:在铲运设备选型中考虑回采巷道尺寸是更加符合矿山生产实际的,同时运用模糊物元分析模型来进行铲运设备选型是可行的。
[Abstract]:In the selection of shoveling equipment, in order to consider the influence of the size of the mining roadway, after determining the size of the roadway of different schemes, according to the theory of Q classification, the supporting mode is preliminarily selected, and the numerical model is established to analyze the stress distribution and safety factor of the stope. The maximum principal stress, the minimum safety factor, the working efficiency and the support cost of the scraper are selected to constitute the evaluation index system, and the fuzzy matter-element analysis model for the optimal selection of the shoveling equipment is established. The coefficient of variation is used to calculate the weight coefficients of each evaluation index. Finally, the correlation degree of the five schemes is 0.836 ~ 0.820 9 / 0. 759 6 / 0. 863 ~ 2 / 0. 839 4 respectively. According to the principle of maximum correlation degree, scheme D (bucket capacity is 5 m ~ 3) is determined as the best shovel equipment. The evaluation results show that it is more in line with the actual production of the mine to consider the size of the roadway in the selection of shoveling equipment, and it is feasible to use the fuzzy matter-element analysis model to select the shovel transportation equipment.
【作者单位】：武汉科技大学资源与环境工程学院;
【基金】：国家自然科学基金项目(编号:51604195)
【分类号】：TD422.4

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