【作者】 李占金；

【导师】 何满潮；

【作者基本信息】 中国矿业大学（北京） ， 岩土工程， 2009， 博士

【摘要】 本文运用工程岩体力学、工程地质学、软岩工程力学和数值计算方法等理论知识,采用现场工程地质调查、室内试验、数值模拟和理论分析等手段,分析了鹤煤五矿深部岩巷的工程条件,确定了不同工程岩组的临界深度和支护难度。模拟了鹤煤五矿深部岩巷的变形破坏过程,分析了巷道的失稳机理,找出了影响巷道稳定性的主控因素。建立了鹤煤五矿深部岩巷稳定性分析的力学模型,提出了以初级锚网耦合支护控制巷道浅部围岩、关键部位二次锚索耦合支护控制顶板、同时以底角注浆锚杆控制底板、最终以柔层桁架耦合支护控制巷道整体变形的一体化控制对策。针对鹤煤五矿深部岩巷新开工程的变形力学机制,提出了巷道稳定性控制对策和设计方案,并针对交岔点工程提出了双控锚杆控制中间岩柱的技术措施。将研究成果应用于工程实例,通过现场监测验证了分析方法及控制对策的合理性和有效性。更多还原

【Abstract】 Based on the theoretic knowledge which consists of engineering rock mass mechanics, engineering geology, soft rock engineering mechanics, and numerical calculation and so on, through the methods such as engineering geological investigation, laboratory experiment, numerical simulation and theoretic analysis, the geological condition of deep rock roadway in the fifth coal mine of HBCG was analyzed in the dissertation. The different engineering rock groups was put forward and theirs critical depth and support difficulty were determined. Through the analysis of destruction characteristics and its instability mechanism of deep rock roadway in the Fifth Coal Mine of HBCG, the key factors affecting the stability of roadway were identified. A stability analysis model of deep rock roadway was established. A integrated multiple-step control measure, design method and construction process were raised, which mainly concludes bolt-mesh coupling support firstly to control walls, cable coupling support secondly to control roof, and base angel bolt at the same time to control plastic zones of the floor, and flexible layer truss coupling support finally to control whole deformation. In view of the deformation mechanical mechanisms of deep rock the new opening roadway in the Fifth Coal Mine of HBCG, the control measures and the design schemes were put forward. According to the engineering geological condition of intersecting roadways, a new technical measure of controlling intersecting roadways has been put forward. The research achievement was applied to the in situ engineering, the analysis method and control strategy was verified to be scientific, rational and effective through in situ monitoring results.更多还原