煤层底板带压开采危险性评价方法探讨

Discussion on risk assessment methods of water inrush from coal seam floor

对于煤层在带压开采条件下的底板突水预测及危险程度评价,目前主要有突水系数法及斯列萨列夫公式。通过对突水系数的不同计算公式与斯列萨列夫公式的比较,指出了每个公式的适用条件及相关参数的确定方法。另外,介绍了考虑含水层富水性因素的Ts-q评价新方法。研究结论可为煤层底板带压开采危险性评价研究提供参考依据。

At present, the main methods for predicting water inrush from coal seam floor and assessing the dangerous degree of coal mining under pressure include the water inrush coefficient method and Slisalif formula. The applicative conditions and the method for determining parameters are illustrated by the introduction of different calculation formula of the coefficient and Slisalif formula. The latest Ts - q evaluation method is introduced with consideration of the factor of water abundance in the aquifer. The results provide the reference to the research on the risk assessment of coal mining under pressure.