基于覆岩结构的沿空留巷充填体载荷估算方法  

Load estimating method of packing body for gob-side entry retaining based on overlying strata structure

作　　者：吴志刚[1,2,3] 褚晓威 石蒙[1,2,3] WU Zhi-gang;CHU Xiao-wei;SHI Meng(Coal Mining Branch,China Coal Research Institute,Beijing 100013,China;Coal Mining and Design Department,Tiandi Science and Technology Co.,Ltd,Beijing 100013,China;State Key Laboratory of Coal Mining and Clean Utilization,Beijing 100013,China)

机构地区：[1]煤炭科学研究总院开采研究分院,北京100013 [2]天地科技股份有限公司开采设计事业部,北京100013 [3]煤炭资源高效开采与洁净利用国家重点实验室,北京100013

出　　处：《煤炭工程》2018年第8期89-92,共4页Coal Engineering

基　　金：国家自然科学基金委员会与神华集团有限责任公司联合资助项目(U1261211);天地科技开采设计事业部生产力转化基金项目(KJ-2015-TDKC-05)

摘　　要：针对部分充填体载荷设计公式复杂、参数选取随意等造成的留巷失败或浪费等问题,通过分析沿空留巷上覆岩层移动规律,提出了基于采动覆岩结构和ALPS的充填体承载特性,并给出了不同顶板条件下沿空留巷后期充填体载荷的简化估算公式。该估算方法在坚硬及中硬顶板条件下沿空留巷实践中得到成功验证,为沿空留巷充填体的设计提供一定借鉴。Some formulas of packing body load design were complicated and parameters were hardly determined,which could make gob-side entry retaining failure or materials waste. By analyzing overlying strata structure in gob-side entry,packing body loading characteristics based on overlying strata structure and ALPS were proposed and simplified estimating formula of packing body＇s stable load in later stage of gob-side entry retaining under different strata was put forward. The method was successfully verified in gob-side entry retaining under medium hard and hard roof,providing experience for design of packing body in gob-side entry retaining.

关 键 词：覆岩结构 沿空留巷 充填体 载荷估算 

分 类 号：TD823[矿业工程—煤矿开采]