摘要
为了合理、有效和定量地评价煤层围岩岩体结构对煤层瓦斯赋存的影响,基于不同地层岩体结构的岩石质量指数(RQD)及钻探岩芯采取率方面存在较大差异,含煤地层的岩体结构直接影响煤层瓦斯的赋存与运移条件。利用回归分析方法,研究两淮煤田部分矿井的岩芯采取率以及煤层瓦斯含量的分布特征。初步得出钻探岩芯采取率与煤层瓦斯含量之间存在多项式函数关系,且随着岩芯采取率的增加,煤层瓦斯含量也增加,但增加的幅度减小。当岩芯采取率接近100%时,煤层瓦斯含量趋于某个常量。
In order to evaluate the influence of rock structure of coal-bearing strata on coal seam gas storage and reasonablely and quantificationally.Based on obvious differences of Rock Quality Designation(RQD) core drilling collecting rate about different structure of rock,and the coal seam gas storage and transport conditions was impacted directly by the rock structure of coal-bearing strata,core drilling collecting rate and seam gas content distribution of part mines of the Huainan and Huaibei Coalfields were re...
出处
《煤炭科学技术》
CAS
北大核心
2009年第3期103-105,共3页
Coal Science and Technology
基金
国家自然科学基金资助项目(40772092)
关键词
岩芯采取率
瓦斯含量
围岩结构
回归分析
core drilling collecting rate
gas content
adjacent rock structure
regression analysis
