| 陈梅芳,丁德馨.康家湾铅锌金矿十二中段运输巷道稳定性分析与加固设计[J].南华大学学报(自然科学版),2005,(Z1):1~6.[.Stability Analysis and Reinforcement Design at Level 12 of Kang Jiawan Mine[J].Journal of University of South China(Science and Technology),2005,(Z1):1~6.] |
| 康家湾铅锌金矿十二中段运输巷道稳定性分析与加固设计 |
| Stability Analysis and Reinforcement Design at Level 12 of Kang Jiawan Mine |
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| DOI： |
| 中文关键词: 巷道 稳定性分析 加固设计 |
| 英文关键词:tunnel,stability analysis,reinforcement design, |
| 基金项目: |
| 陈梅芳 丁德馨 |
陈梅芳(南华大学,建筑工程与资源环境学院,湖南,衡阳,421001)
丁德馨(南华大学,建筑工程与资源环境学院,湖南,衡阳,421001)
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| 中文摘要: |
| 以康家湾十二中段运输巷道为主要研究对象,分析巷道围岩和支护系统的失稳原因,进行加固设计.采用新奥法分析围岩破坏机理,在稳定性计算中将运输巷道等效为理想圆形巷道,松软破碎岩体视为各向均质岩体.分λ=1和λ≠1两种情况,用弹塑性理论进行计算,获得了设计巷道在开挖无支护情况下的应力应变状态,进行围岩稳定性分析,在此基础上,分析该巷道原支护系统失稳的原因,并进行加固设计. |
| 英文摘要: |
| The design takes the tunnel at level 12 of kang Jiawan Mine as the main research objects and analyzes the stability of the surrounding rock mass and the failure of the supports.In the first place the New Austrian Tunneling Method was introduced.Then,the failure mechanism and modes of surrounding rock mass were analyzed,the tunnel was simplified as an idealized circular tunnel and the soft and fractured surrounding rock mass,as homogeneous media.The analytical method was used to analyze the stress state and the stability of the unsupported rock mass of the east connection tunnel and the inclined tunnel.The failure of the supports was studied and the re-stabilization measures were designed. |
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