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通过对姚桥煤矿7509综放工作面的实测,摸清了该综放面的矿压显现规律,分析了首次投入使用的ZFSB4400/16/28型反四连杆大插板放顶煤支架的特点及对该开采条件的适应性,并确定了合理的工作阻力.
Through the actual measurement of 7509 fully mechanized top coal caving mining face in Yaoqiao coal mine, the law of occurrence of underground pressure in the fully mechanized top coal caving face was found out. The first ZFSB4400 / 16/28 anti-four-link large-plate caving support Characteristics and adaptability of the mining conditions, and to determine a reasonable resistance to work.