| 盾构法隧道纵向非线性地震响应特性研究 |
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| 引用本文： | 蒋建群,卢慈荣,沈林冲.盾构法隧道纵向非线性地震响应特性研究[J].水力发电学报,2005,24(2):10-15. |
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| 作者姓名： | 蒋建群 卢慈荣 沈林冲 |
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| 作者单位： | 1. 浙江大学建筑工程学院,杭州,310027
2. 杭州市地铁集团有限责任公司,杭州,310003 |
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| 摘 要： | 以考虑轴向力与弯矩共同作用的等价刚度非线性动力有限元法，分析了地震动作用下盾构法隧道纵向的非线性响应特性。通过与不考虑轴向力与弯矩共同作用的等价刚度法及管片与纵向螺栓单独建模分析等不同方法计算结果的对比，验证了等价刚度计算中考虑轴向力与弯矩共同作用的必要性和不考虑轴向力与弯矩共同作用等价刚度法的适用性，并就隧道等价刚度、螺栓非线性及地基参数非线性等要素对隧道纵向地震响应的影响情况进行分析。
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| 关 键 词： | 隧道工程 纵向非线性地震响应 等价刚度 轴力与弯矩共同作用 盾构法隧道 |
| 修稿时间： | 2004年9月16日 |
Research on longitudinal nonlinear seismic response of shield tunnel |
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| JIANG Jianqun,LU Cirong,SHEN Linchong.Research on longitudinal nonlinear seismic response of shield tunnel[J].Journal of Hydroelectric Engineering,2005,24(2):10-15. |
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| Authors: | JIANG Jianqun LU Cirong SHEN Linchong |
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| Affiliation: | JIANG Jianqun 1,LU Cirong 1,SHEN Linchong 2 |
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| Abstract: | Adopting axial force and bending moment coactions equivalent rigidity method, the longitudinal nonlinear responses of a shield tunnel are analyzed, subjected to various earthquake incidence and soil-structure interaction. The rationality and applicability with considering such coactions or without are demonstrated for ordinary and higher level ground motions. Such influence aspects as equivalent rigidity, soil non-linearity and bolt plasticity are discussed in detail, providing an academic foundation for cognizing the dynamic behaviors of shield tunnel and upgrading its seismic design. |
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| Keywords: | tunnel engineering longitudinal nonlinear seismic response equivalent rigidity axial force and bending moment coactions shield tunnel |
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