拉铲倒堆开采工艺推土机降段高度优化  

Dozer-lowered height optimization of dragline stripping system

作　　者：梅晓仁[1,2] 王永军 

机构地区：[1]辽宁工程技术大学资源与环境工程学院,辽宁阜新123000 [2]湛江师范学院商学院,广东湛江524048 [3]内蒙古煤矿设计院露天采矿所,内蒙古呼和浩特010010

出　　处：《辽宁工程技术大学学报（自然科学版）》2009年第3期355-358,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金资助项目(50221402);国家973基金资助项目(2002CB412705)

摘　　要：针对我国露天煤矿地质赋存特点,提出露天煤矿上部剥离物和煤层采用某些开采工艺,最下部煤层上部的剥离物部分或者全部采用拉铲倒堆开采工艺。采用拉铲倒堆开采工艺时,倒堆剥离台阶采用抛掷爆破方式,将一部分剥离物直接抛掷到内排土场;然后配备大功率的推土机扩展平台,降低倒堆台阶高度;最后由拉铲将剩余的剥离物直接倒排至采空区。在抛掷爆破条件下,得到了推土机的推土距离与倒堆台阶宽度和推土机降段高度的近似关系。以年作业总费用最小为优化目标,提出了拉铲倒堆开采工艺推土机降段高度的优化模型。The views that some mining technologies are used in the upper part of the waste and the coal seams, and dragline stripping system （DSS） is suitable for stripping the rock, all or part, above the roof of bottommost coal seam are made according to the deposit occurrence of surface coalmines in China. After throwing blast, much more powerful dozers are used to lower the height and extend the width of stripping bench, and then draglines standing on the extended bench are used to extend the bench more widely and throw the waste directly to the dumping area. The approximation relation among bulldozing distance, bench width and dozer-lowered height is obtained under the condition of throwing blast. The dozer-lowered height optimization model of DSS is brought forward at the aim of lowest yearly operating costs.

关 键 词：露天煤矿 拉铲倒堆开采工艺 推土机降段 优化模型 

分 类 号：TD824[矿业工程—煤矿开采]