充填工作面上覆岩层碎胀特性实验研究  

Experimental Reserch on Broken Expand Properties of Overlying Strata in Filling Mining

作　　者：秦洪岩 欧阳振华[1,2] 题正义 张峰[3] 王海东[1] 李雪冰 彭瑞 QIN Hong-yan;OUYANG Zhen-hua;TI Zheng-yi;ZHANG Feng;WANG Hai-dong;LI Xue-bing;PENG Rui'(School of Safety Engineering,North China Institute of Science and Technology,Beijing 101601,C hina;Key Lab of Mine Disaster Prevention and Control in Hebei Province,Langfang 065201,China;College of Mining Engineering,Liaoning Technical University,Fuxin 123000,China)

机构地区：[1]华北科技学院安全工程学院,北京101601 [2]河北省矿井灾害防治重点实验室,河北廊坊065201 [3]辽宁工程技术大学矿业学院,辽宁阜新123000

出　　处：《煤炭技术》2019年第11期1-3,共3页Coal Technology

基　　金：“十三五”国家重大研发计划项目(2017YFC0804108);国家自然科学基金资助(51804117;51704148);廊坊市科学技术研究与发展计划项目(2018013105);中央高校基本科研业务费资助(3142018024)

摘　　要：为分析充填工作面的覆岩碎胀特性,以西马煤矿1326工作面为研究对象,采取现场取样,实验室测试的方法进行深入研究。设计垮落岩层碎胀系数的实验方案,制成4组原始块度组成的试样,最终确定垮落岩层的碎胀系数为1.450。设计残余碎胀系数及断裂带膨胀系数的实验方案,选择自制的实验装备,最终确定残余碎胀系数为1.074,膨胀系数为1.022。实验结果对计算充填开采过程中的覆岩破坏高度具有理论参考价值。In order to analysis project topic,broken expansion property of overburden rock in filling working face,field sampling and laboratory testing were used for further study.Taking 1326 working face of Xima coal mine as the research object.4 groups of samples composed of original block size were made,the experimental scheme of broken expansion coefficient of caving rock is designed.Finally,the broken expansion coefficient of caving rock is 1.450.The experimental scheme of residual expansion coefficient and broken expansion coefficient of the fault zone was designed.The self-made experimental equipment was selected to determine the residual expansion coefficient of 1.074 and the broken expansion coefficient of 1.022.The experimental results have theoretical reference value for calculating the overburden failure height in the process of filling mining.

关 键 词：碎胀系数 残余碎胀系数 膨胀系数 充填开采 

分 类 号：TD32[矿业工程—矿井建设]