露天煤矿排土场平台“堆状地面”土壤重构方法

露天煤矿新建排土场是一个人工巨型松散堆积体，往往存在严重的水土流失、表层土壤的压实以及排土场本身的稳定等问题。排土场平台“堆状地面”土壤重构方法避免了表层土壤压实，并最大限度地增加了水分入渗和分散了地表径流，是解决上述问题的有效途径。阐述了排土场平台堆状地面土壤重构方法的概念，并以安太堡大型露天煤矿排土场为例，通过水分析计算进一步研究了堆状地面的侵蚀控制机理，据此提出了优化的堆状地面排土方式。

The loose-heaped-ground method of soil reconstruction on the stackpiles of open-pit coal mine

The newly constructed stackpiles of large open pit coal mine, which are man made huge loose dumps, often have the problems of severe soil erosion, water loss, topsoil compaction and unstable. The loose heaped ground method of soil reconstruction on the platform can avoid the topsoil to be compacted, and greatly increase rainwater infiltration and disperse surface run off. Thus it is an effective way of solving the problems above and has been preliminarily confirmed in the reclamation practice of Antaibao Large Open pit Coal Mine. In the case of the stackpiles of Antaibao Large Open pit Coal Mine, the new method is explained in detail, the erosion control mechanism is studied by means of hydrological analysis, and optimal loose heaped ground is further brought forward according to the calculation result.