【作者】 杨绿刚；

【导师】 何富连；

【作者基本信息】 中国矿业大学（北京） ， 采矿工程， 2013， 博士

【摘要】 针对深部大采高充填开采沿空留巷所处复杂特殊环境，本文进行了该复杂条件下沿空留巷围岩协同控制研究，主要研究内容如下：探究不同配比高水材料力学特性及其与工作面矿压规律的关系，确定采用高配比充填材料充填，减弱动载荷对沿空留巷围岩稳定性的影响；数值模拟研究充填开采采场支承压力分布规律及不同充填长度对采场周围支承压力分布的影响；建立非均布受载充填体及巷旁组合支架协同支护条件下沿空留巷围岩稳定性的结构力学模型，分析覆岩移动过程中巷旁支护对充填体的维稳和补偿作用；建立大采高充填开采沿空留巷的煤帮弱结构力学模型，分析弱结构变形破坏过程对顶板稳定性的影响；提出并形成了充填体改性、圆钢管混凝土组合支架、高预应力高强锚杆和桁架锚索的协同控制机理与技术体系，促进了深部巷道围岩控制技术的发展。更多还原

【Abstract】 For the complicated environment of gob-side entry retaining in deep backfilling,this paper studies the collaborative control of surrounding rock in complex conditions.The main study content is as follows: study relationship between mechnical features ofhigh-water material with different ratio and strata behavior. The higher water fillingmaterial is determined to weaken the impact caused by the dynamic load to thegob-side entry retaining surrounding rock stability. The abutment pressure distributionlaw of mining stope and the different impace caused by different filling length to thesurrounding abutment pressure distribution are studied by using numerical simulation.This paper builds the structure mechanic model of gob-side entry retaining surroundingrock stability in collaborative support condition including non-uniformed loaded fillingbody and road-side brackets. Keeping stability and compensate effect produced byroad-side support to filling body in onverlying strata movement process is researched.Coal-side weak mechanical model of gob-side entry retaining is built. The effect fromweak structure failure process to roof stability is analyzed. The collaborative controlmechanism and technique system consist of changed filling body, steel concrete pipes,high prestress and strength, and truss cable is proposed, which promotes thedevelopment of deep roadway surrounding rock control technology.更多还原