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根据实测的顶板结构和支架工作阻力等可以定量计算采场顶板压力,工作面采高等则能定性估算采场顶板压力。顶板初次运动和周期性运动阶段顶板来压时的压力最大值是衡量顶板压力的标准。测算得到二柱掩护式支架垂直方向的顶板压力约为倾斜方向支架工作阻力的0.95倍。应该选择适宜的控顶距作为顶板压力已知时计算支架合理工作阻力的依据。
According to the measured roof structure and the working resistance of the support, the pressure of the roof of the stope can be quantitatively calculated. When the working face is mined, the roof pressure can be qualitatively estimated. Roof top movement and periodic movement of the roof pressure to the maximum pressure is the measure of roof pressure standards. Calculated that the vertical pressure of the two-column shield bracket roof pressure is about 0.95 times the working resistance of the bracket in the inclined direction. Should choose the appropriate roof as the roof when the pressure is known to calculate the reasonable support work based on the resistance.