| 柱面波在半空间中洞室周围的散射 |
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| 引用本文： | 梁建文,刘中宪.柱面波在半空间中洞室周围的散射[J].地震工程与工程振动,2008,28(5). |
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| 作者姓名： | 梁建文 刘中宪 |
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| 作者单位： | 天津大学,土木工程系,天津,300072 |
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| 基金项目： | 教育部跨世纪优秀人才培养计划，天津市应用基础研究项目 |
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| 摘 要： | 采用一种间接边界积分方程法求解了柱面波在半空间中洞室周围的散射问题。通过边界条件的验算以及退化解答与精确解的比较,验证了本文方法的计算精度。文中主要分析了入射波频率、波源与洞室距离等参数对洞室附近地表位移响应和洞室动应力集中的影响,得出了一些有益的结论。
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| 关 键 词： | 半空间 洞室 柱面波 散射 间接边界积分方程法 动应力集中因子 |
Scattering of cylindrical waves around a cavity in a half-space |
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| LIANG Jianwen,LIU Zhongxian.Scattering of cylindrical waves around a cavity in a half-space[J].Earthquake Engineering and Engineering Vibration,2008,28(5). |
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| Authors: | LIANG Jianwen LIU Zhongxian |
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| Abstract: | The scattering of cylindrical waves by a cavity in half-space is investigated by using an indirect boundary integral equation method(IBIEM).By checking the satisfaction of the boundary condition and comparing the degenerated result with the exact solution,the accuracy of this study is verified.The effect of the incident frequency,the distance between wave source and cavity,etc.on the surface ground motion and the dynamic stress concentration factor(DSCF) around the cavity are discussed,and some useful conclusions are obtained.They are helpful to the explosion resistant design of engineerings. |
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| Keywords: | half-space cavity cylindrical waves scattering IBIEM DSCF |
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