| 隧道开挖支护塑性区范围的影响因素分析 |
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| 引用本文： | 都魏龙.隧道开挖支护塑性区范围的影响因素分析[J].山西交通科技,2012(3):39-40,63. |
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| 作者姓名： | 都魏龙 |
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| 作者单位： | 山西省公路局长治分局,山西长治048100 |
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| 摘 要： | 从弹塑性理论出发,建立了圆形隧道在开挖支护时的塑性区半径解析公式,从实测锚杆轴力角度分析了塑性区半径大小,验证了锚杆支护效果;并定量分析了围岩力学参数和支护抗力的变化对塑性区大小的影响,结论对隧道监控量测和动态设计、施工具有一定的指导和借鉴作用。
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| 关 键 词： | 塑性区 锚杆 轴力 支护 抗力 动态 设计 |
The Analysis of Influence Factors in the Scope of Plastic Zone for Tunnel Excavation and Support |
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| DU Wei-long.The Analysis of Influence Factors in the Scope of Plastic Zone for Tunnel Excavation and Support[J].Shanxi Science & Technology of Communications,2012(3):39-40,63. |
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| Authors: | DU Wei-long |
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| Institution: | DU Wei-long (Changzhi Branch of Shanxi Provincial Highway Bureau,Changzhi,Shanxi 048100,China) |
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| Abstract: | According to the theory of elastic-plastic, the paper established the analytical formula of plastic zone radius for circular tunnel in its excavation and support, and verified the effect of anchor support based on the radius of plastic zone from the perspective of measured axial force.The paper also analyzed the influence on plastic zone by the variations of mechanical parameters and resistance of support for reference. |
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| Keywords: | plastic zone anchor axial force support resistance dynamic design |
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