多煤层条带开采的影响因素众多,为研究各因素对多煤层条带开采的影响,采用FLAC模拟了多煤层条带开采在一定采深时,不同采宽、层间距、层间岩性以及不同的上下留煤柱空间关系时地表的最大下沉值,并应用正交试验设计方法分析了以上4个主控因素对地表最大下沉的敏感程度,其由主到次的顺序为:采宽、上下煤层留煤柱的空间关系、层间岩性、层间距。

There were many influence factors on the strip mining in multi seams.In order to study each factor affected the strip mining in the multi seams, the FLAC software was applied to simulate the maximum value of surface subsidence with strip mining in the multi seams when in a certain mining depth and with different mining width, distance between seams, lithology between seams and the different space relationship between the upward and downward coal pillars.The normal test design me thod was applied to analyze the four principal factors to the sensitive degree of the maximum surface subsidence. The principal factors in sequence would be the mining width, the space relationship between the coal pillars in the upward and downward seams, the lithology between the seams and the distance between seams.

国家自然科学基金资助项目(40772191)；“十一五”国家科技支撑计划资助项目(2006BAC09B01)；