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对于单体液压支柱工作面．选择支柱载荷作为顶板动态预报的基本参数．支柱载荷临界值确定为额定阻力的７０％．并按统计均值与０．８～１．２倍均方差之和进行调整．符合大多数工作面顶板动压显现规律．
For single hydraulic prop face. Pillar load is selected as the basic parameter of roof dynamic prediction. The pillar load threshold is set at 70% of the rated resistance. And according to the statistical average and 0.8 ~ 1.2 times the sum of mean square error adjustment. In line with most of the work surface roof dynamic pressure law.