摘要
收集了贵州9个煤矿区60个含煤构造单元292对煤矿的683个煤的坚固性系数(f)测值、585个煤的破坏类型测值,8个煤矿区57层煤层的钻孔流量衰减系数(α)和透气性系数(λ)测值。在这些数据的基础上,分别从f值、煤的破坏类型、透气性系数和钻孔瓦斯流量衰减系数等角度,全面系统的总结贵州煤矿区松软低透气性难抽煤层的分布特点,分析和研究贵州煤矿区松软低透气性难抽煤层分布规律,为贵州煤矿区瓦斯治理提供宏观指导和参考。
Collected 292 coal bearing structural units in 9 coal mining areas in Guizhou, and the coefficient of firm＇s coefficient of 683 coal mines f, and the failure types of 585 coal mines. 57 layer coal seam in the 8 layer of the borehole flow attenuation coefficient A and permeability coefficient a of the measured value. Based on these basic data, Respectively from the f value, type of coal, permeability coefficient and the coefficient of attenuation coefficient of gas flow, the distribution characteristics of the soft and low permeability coal seam in Guizhou coal mine area are summarized, and the distribution law of the soft and low permeability coal seam in Guizhou coal mine is analyzed and studied.
出处
《煤炭技术》
CAS
北大核心
2016年第9期152-155,共4页
Coal Technology
基金
国家"十二五"科技支撑计划项目(2012BAK04B07)
关键词
煤的坚固性系数
破坏类型
透气性系数
钻孔瓦斯流量衰减系数
coal protodyakonov coefficient
type of damage
air permeability coefficient of seam
gas flow attenuation coefficient
