| 波浪荷载作用下海底隧道-孔隙海床的动力分析 |
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| 引用本文： | 崔杰,欧阳志勇,朱飞,曾凡凯.波浪荷载作用下海底隧道-孔隙海床的动力分析[J].震灾防御技术,2016,11(3):513-527. |
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| 作者姓名： | 崔杰 欧阳志勇 朱飞 曾凡凯 |
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| 作者单位： | 广州大学工程抗震研究中心，广州 510405,广州大学工程抗震研究中心，广州 510405,青海省环境地质勘查局，西宁 810000,广州大学工程抗震研究中心，广州 510405 |
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| 基金项目： | 国家自然科学基金重点项目（51438001）、973课题（2011CB013606）、长江学者和创新团队发展计划（IRT13057）和博士点基金（20124410110004） |
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| 摘 要： | 孔隙海床在波浪荷载作用下其有效应力减小、孔隙水压力增加,这将影响孔隙海床中隧道的稳定性,因此,研究在波浪荷载作用下孔隙海床与隧道的动力响应具有重要的工程意义。本文基于Biot的动力固结理论和弹性动力学理论建立波浪荷载作用下孔隙海床与海底隧道的动力分析模型,并同时考虑海底隧道与海床之间的接触效应、边界效应等对海底隧道内力的影响。最后通过变换海床的变形模量、渗透系数和海底隧道的半径、埋深等,观察其对海床土孔隙水压力和海底隧道内力的影响,为海底隧道的设计提供依据。
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| 关 键 词： | 波浪荷载 接触效应 边界效应 孔隙水压力 隧道模型 |
| 收稿时间： | 2015/8/24 0:00:00 |
Dynamic Analysis of the Channel Tunnel-Porous Seabed under Wave Load |
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| Cui Jie,Ouyang Zhiyong,Zhu Fei and Zeng Fankai.Dynamic Analysis of the Channel Tunnel-Porous Seabed under Wave Load[J].Technology for Earthquake Disaster Prevention,2016,11(3):513-527. |
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| Authors: | Cui Jie Ouyang Zhiyong Zhu Fei and Zeng Fankai |
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| Institution: | Earthquake Engineering Research & Test Center of Guangzhou University, Guangzhou 510405, China,Earthquake Engineering Research & Test Center of Guangzhou University, Guangzhou 510405, China,Environmental Geological Exploration Bureau of Qinghai Province, Xining 810000, China and Earthquake Engineering Research & Test Center of Guangzhou University, Guangzhou 510405, China |
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| Abstract: | Porous seabed under wave load will reduce the effective stress or the increase of pore water pressure, which will affect the stability of tunnel in the porous seabed. Therefore, the dynamic response of the porous seabed and the tunnel has important engineering significance under wave load. For this reason, the dynamic analysis model of the Porous seabed and tunnel are formulated respectively based on the Biot''s theory of dynamic consolidation of two-phase media and principle of elastic dynamics, and at the same time, considering the contact between the tunnel and the seabed effect, the influence of boundary effect on the internal forces of the tunnel. Finally, with the change of seabed deformation modulus, permeability coefficient, the radius of the tunnel and buried depth are analyzed to the impacts on pore water pressure and the influence of the internal force of the channel tunnel, which provides the basis for the design of the tunnel. |
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| Keywords: | Wave load Contact effect Boundary effect Pore water pressure Tunnel internal force |
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