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运用底板比压仪对安家岭井工二矿B906特大型综放工作面底板比压进行现场实测,得出底板允许比压值及破坏类型,对底板进行分类。通过对综放液压支架底座比压分布特征的分析,得出综放两柱支架底座前端比压最大值。经校核分析,综放两柱支顶掩护式放顶煤支架底座比压能够满足B906综放工作面底板比压的要求。
The floor specific pressure of the B906 extra large fully mechanized caving mining face in Well Mine No.2 Mine of Anjialing Mine was measured on the spot by means of floor pressure ratio meter. The allowable specific pressure value and failure type of the floor were obtained and the floorboards were classified. Based on the analysis of the pressure distribution characteristics of the hydraulic support base, the maximum specific pressure at the front of the two-post support stand is obtained. After checking and analyzing, the specific pressure of fully mechanized top coal caving support with double-column roof support can meet the requirement of floor specific pressure of B906 fully mechanized caving face.