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为了解决条带开采技术采出率太低的问题,利用厚松散层大采深条件下地表移动变形较小的特点,基于建筑物临界变形值原则,提出了宽条带跳采开采的技术来提高煤炭的开采率,解放深部建筑物下的压煤,并利用FLAC进行数值模拟,分析了跳采开采和顺序开采对地表的影响。最后,通过工程实例验证了该技术的可行性,利用此技术实现了厚松散层大采深下不迁村开采,有助于矿产资源的充分利用。
In order to solve the problem of too low recovery rate of strip mining technology, based on the principle that the deformation of the ground surface is large under the condition of deep mining with thick loose layers, based on the principle of critical deformation value of buildings, the technology of wide strip skip mining Improve the coal mining rate, liberate the coal under the deep buildings, and use FLAC to carry on the numerical simulation, and analyze the influence of the mining by jumping and sequential mining on the surface. Finally, the feasibility of the technology is verified through an engineering example. By using this technology, the mining of non-relocated villages under the deep mining of thick loosens can be realized and the utilization of mineral resources can be fully utilized.