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介绍了理论分析和实验室试验确定工作面预测指标Ｋ１、ｑ、Ｃｑ、Ｓｍａｘ、Ｖ３０敏感性及临界值的方法和结果，现场试验表明：确定出的突出预测指标临界值具有较高的可靠性。
The methods and results of the sensitivity and critical values of K1, q, Cq, Smax and V30 on working face prediction by theoretical analysis and laboratory tests are introduced. The field tests show that the critical value of the prominent predictive index is highly reliable .