水分对突出煤层坚固性系数影响研究

Study on the influence of water content on the firmness coefficient of outburst coal seam

为了研究突出煤层煤样水分对煤的坚固性系数影响,对不同水分煤样的坚固性系数进行测定,并对数据进行分析,结果表明:随着煤体内水分的增加,坚固性系数也随之增大。初始阶段,水分对坚固性系数的影响显著,坚固性系数f值增长迅速,随着水分的逐渐增加,坚固性系数增加会越来越小。为坚固性系数测定精确度,测定应先对煤样进行干燥处理。

In order to study the influence of water content in outburst coal seam on coal firmness coefficient,the firmness coefficient of coal samples with different water content was measured and the data were analyzed.The results show that the firmness coefficient increases with the increase of water content in coal body.In the initial stage,water has a significant effect on the coefficient of firmness.The value f of the coefficient of firmness increases rapidly.With the gradual increase of water,the increase of the coefficient of firmness will become smaller and smaller.In order to determine the accuracy of the firmness coefficient,the coal sample should be dried first..