寺河煤矿钻屑解吸指标区域临界值的确定

Sihe Coal Mine drill cutting desorption indices:determination of the regional critical value

根据矿区的瓦斯含量、软煤层带和煤的坚固性系数对寺河煤矿进行区域划分,然后通过实验室方法,确定出适合该区域的钻屑解吸指标的实验临界值,即提高了临界值的针对性,同时又缩短了确定现场突出预测临界值的周期。

In this paper, Sihe Coal Mine is divided into different regions on the basis of local gas contents, the rigidity coefficients of soft coal seams and coals. Then, by way of laboratory methods, appropriate test critical values of drill cutting desorption indices that best suit various local places are determined. This practice not only improves the critical values＂ relevance to the local places, but also shortens the time needed to determine on site the critical values for outburst prediction.