煤矿安全2017，Vol.48Issue(12)：67-69,3.DOI:10.13347/j.cnki.mkaq.2017.12.017
古书院矿似膏体充填材料配比及其力学性能
Proportion and Mechanical Properties of Paste-like Filling Material in Gushuyuan Coal Mine
摘要
Abstract
In view of the present situation of coal panels under buildings occupies a large proportion in Gushuyuan Mine of Jincheng Coal Group,first,we investigate and analyze the potential of filling materials around Jincheng city,and analyze the elements of the raw materials.We uhimately determine to use the coal gangue,fly ash as the main ingredient of paste-like filling material,mineral powder,lime and gypsum as gelling material.Then,we carry out three factors three levels orthogonal experiment,use the range analysis to choose the result of experiment,determine the ratio of main ingredient of paste-like filling material,that is coal gangue∶fly ash =2∶1.Follow,we study the gelling material ratio,test the exudation rate of this material,finally,we conduct outdoor large volume consolidation test,drilling cores to process the cores into standard cylindrical specimens,and test the mechanics performance of specimens under uniaxial and triaxial compressive test.关键词
充填材料/似膏体/正交试验/力学性能/极差分析法/泌水率Key words
filling material/paste-like/orthogonal experiment/mechanical property/range analysis/exudation ratio分类
矿业与冶金引用本文复制引用
熊祖强,姜涛,李东华,孙亚鹏..古书院矿似膏体充填材料配比及其力学性能[J].煤矿安全,2017,48(12):67-69,3.基金项目
国家自然科学基金资助项目(50908076,51274088) （50908076,51274088）
