| 地铁隧道-地层系统的参数优化反演与动力响应分析 |
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| 引用本文： | 房营光.地铁隧道-地层系统的参数优化反演与动力响应分析[J].土木工程学报,2001,34(6):45-49. |
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| 作者姓名： | 房营光 |
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| 作者单位： | 广东工业大学 |
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| 基金项目： | 广东省高教厅重点科研基金资助项目(970023) |
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| 摘 要： | 由半解析方法研究地铁隧道-地层系统的动力参数优化反演和动力响应分析问题.隧道结构由平面等参单元离散,地层由层单元离散,采用半解析位移函数导出了相应离散系统的动力方程和频域中的最小二乘优化反演方程,由此,在给出参数反演的同时,给出了系统的动力响应分析.这种基于参数反演而进行的动力分析可以给出与实际相符的合理结果,对地铁系统的设计有一定的实用价值.
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| 关 键 词： | 地铁隧道-土系统 参数优化反演 动力响应 |
| 文章编号： | 1000-131X(2001)06-0045-05 |
| 修稿时间： | 1999年10月29 |
OPTIMUM INVERSION OF PARAMETERS AND DYNAMIC RESPOSE FOR THE SUBWAY'S TUNNEL-SOIL SYSTEM |
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| Fang Yingguang.OPTIMUM INVERSION OF PARAMETERS AND DYNAMIC RESPOSE FOR THE SUBWAY'S TUNNEL-SOIL SYSTEM[J].China Civil Engineering Journal,2001,34(6):45-49. |
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| Authors: | Fang Yingguang |
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| Affiliation: | Guangdong University of Technology |
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| Abstract: | A method for the dynamic analysis combined with the parameter inversion is proposed in the paper It is used to analyze the subway's tunnel?soil system A plane isoparameteric element is used to model the tunnel structure At same time, the layer element is used to model the ground soils The dynamic equation system and least square formulas for the parameter inversion in frequency domain are derived It is the results of using a displacement function suited for semi?analysis The numerical results of the proposed method are in good agreement with that to the practice results It is good reference for the subway design |
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| Keywords: | subway's tunnel soil system optimum inversion of parameters dynamic response |
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