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通过对葛店矿２４０２１面的实测，得出了工作局矿压显现的一般规律，特别分析了冒高与采高之间的关系，初步给出了上覆岩层岩梁的结构模式，对指导含水流砂层下开采及改善采场支架布置提供了依据。
Through the measurement of 24021 surface of Gedian Mine, the general law of the occurrence of mine pressure is obtained. The relationship between risking and mining height is analyzed in detail, and the structural model of overlying rock beam is given. Provided a basis for mining under the stream containing sand and improving the stope layout.