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为解决采动期间回采巷道底鼓治理难题,在受动压影响的回采巷道底板上由纵向槽钢梁、横向槽钢梁构成的支柱底梁结构,并安装单体液压支柱,将顶板的压力通过单体液压支柱传递到底板,同时利用单体液压支柱本身所具有的高支护阻力,以达到控制底鼓的目的。该方法支护强度高、操作简便、对生产影响很小,是一种有效的采动期间巷道底鼓治理方法。
In order to solve the difficult problem of the bottom drum of mining roadway during the mining period, the pillar bottom beam structure consisting of longitudinal channel steel beams and transverse channel steel beams is adopted on the bottom floor of mining gateway influenced by dynamic pressure, and the single hydraulic props are installed, Through the single hydraulic props transmitted to the floor, while using the hydraulic prop itself has a high support resistance, in order to achieve the purpose of controlling the bottom drum. The method has the advantages of high supporting strength, simple operation and little impact on production, and is an effective control method of road bottom drum during mining.