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为了确定赵庄二号井煤矿“三下”压煤回采的条带开采尺寸,在保证安全的前提下尽可能多的解放呆滞煤量。以试采区为例,在确定关键承载层的基础上通过Marcus修正简算式和RFPA数值模拟相结合的研究方法对条带开采中的采宽进行分析研究,在试采区实施了条带开采,并对地表沉陷进行了实测。
In order to determine the Zhaozhuang No. 2 coal mine “three times ” pressure coal mining strip mining size, under the premise of ensuring safety as much as possible to free up the amount of dead coal. Taking the test mining area as an example, on the basis of determining the key bearing layer, the mining width in the strip mining was analyzed through the combination of Marcus’s modified simple formula and the RFPA numerical simulation. Strip mining was carried out in the trial mining area , And measured the surface subsidence.