煤的孔隙结构与其吸附解吸变形的相关性  

Relationship of Coal Pore Structure and Adsorption/Desorption Strain

作　　者：祝捷[1] 何法 徐立辉 陈赫 王全启 马晓桐 ZHU Jie, HE Fa, XU Li-hui, CHEN He, WANG Quan-qi, MA Xiao-tong(School of Mechanics and Civil Engineering, China University of Mining and Technology（Beijing）, Bei]ing 100083, China)

机构地区：[1]中国矿业大学(北京)力学与建筑工程学院,北京100083

出　　处：《煤炭技术》2018年第6期145-147,共3页Coal Technology

基　　金：国家重点研发计划(2016YFC0801401);重庆大学煤矿灾害动力学与控制国家重点实验室访问学者基金(2011DA105287-FW201508);中央高校基本科研业务费专项资金(2010QL02);中国矿业大学(北京)大学生创新训练项目(c201606018)

摘　　要：基于对吸附变形煤样的压汞法测试,得到了煤样的孔隙度、比表面积、中值孔径和不同类型孔隙的分形维数等孔隙特征参数;通过煤样吸附解吸变形与孔隙结构特征参数的相关性分析发现:煤样吸附解吸变形与孔隙度、比表面积、孔隙分形维数等孔隙结构有一定的相关性,其中煤样孔隙分形维数与吸附体应变的正相关性最为显著。Based on the mercury intrusion method of adsorption deformation of coal sample test, obtained the pore characteristic parameters of the coal samples, such as porosity, specific surface area, medium pore diameter and different types of pore fractal dimension;through the correlation analysis of the coal adsorption/desorption strains and the pore characteristic parameters,the research shows that the coal adsorption/desorption strains has the close relation with the pore structure,such as porosity, surface area,pore fraetal dimensions,and the pore fractal dimensions of coal samples have the most significant positive correlation with adsorption volume strains.

关 键 词：煤样变形 孔隙结构 压汞法 孔隙分形维数 气体吸附解吸 

分 类 号：TD712[矿业工程—矿井通风与安全]