| 四渡河特大桥隧道锚碇三维弹塑性数值分析 |
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| 引用本文： | 张利洁,黄正加,丁秀丽. 四渡河特大桥隧道锚碇三维弹塑性数值分析[J]. 岩石力学与工程学报, 2004, 23(Z2): 4971-4974 |
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| 作者姓名： | 张利洁 黄正加 丁秀丽 |
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| 作者单位： | 长江科学院岩基所,武汉,430010 |
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| 摘 要： | 四渡河特大桥隧道锚碇以锚洞围岩为研究对象,采用三维显式有限差分法(FLAC3D)对锚碇与围岩进行三维弹塑性数值分析,模拟岩体与锚碇之间的相互作用,研究锚碇结构和岩体变形机制以及可能的破坏模式,通过超载和弱化岩体与混凝土胶结面强度参数研究隧道锚碇的极限承载力或安全系数,并对整个山体进行稳定性分析,从而为设计提供依据。
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| 关 键 词： | 数值分析 锚碇 极限承载力 稳定性 |
| 文章编号： | 1000-6915(2004)增2-4971-04 |
| 修稿时间： | 2004-02-26 |
NUMERICAL ANALYSIS WITH FLAC3D OF A TUNNEL ANCHORAGE OF SIDU RIVER BRIDGE |
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| ZHANG Lijie,Huang Zhengjia,Ding Xiuli. NUMERICAL ANALYSIS WITH FLAC3D OF A TUNNEL ANCHORAGE OF SIDU RIVER BRIDGE[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(Z2): 4971-4974 |
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| Authors: | ZHANG Lijie Huang Zhengjia Ding Xiuli |
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| Abstract: | Tunnel anchorage and surrounding rock masses of Sidu River Bridge are analyzed by FLAC3D. Interaction between rock masses and tunnel anchorage is simulated. Deformation mechanism and rupture mode of tunnel anchorage structure and rock masses are studied. The ultimate bearing capacity or safety factor of tunnel anchorage is researched by overweighting load and reducing the value of interface intensity parameter between rock masses and tunnel anchorage. The stability is analyzed and basis is offered for design. |
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| Keywords: | numerical analysis tunnel anchorage ultimate bearing capacity stability |
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