哈尔乌素露天煤矿首采区南端帮留沟高度优化

摘要

为了降低哈尔乌素二采区开采时的二次剥离量,对首采区南帮内排留沟高度进行优化研究.以留沟内排条件下的单环运输和内排搭桥2种方案为前提,分析了各种成本费用变化情况,构建了基于最小成本费用的内排留沟高度优化模型.研究结果表明:内排搭桥为留沟内排条件下的最佳运输方案,最佳留沟高度为37 m.%To reduce the secondary stripping amount in mining district II of Ha'erwusu Open-pit Mine, the article optimizes and researches uncovering height of south end slope in the first mining area. Taking the two haulage systems under uncovered inner dumping condition with end slope, which are one side and provisional haulage system in inner dump, the article analyzes all costs and expenses changing condition, and establishes the optimization model for uncovering height based on the minimum cost. Research results show that provisional haulage system in inner dump is the optimum haulage system in inner dumping with end slope uncovered and the reasonable uncovering height is 37 m.