| 地下双洞室在SV波入射下动力响应问题解析解 |
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| 引用本文： | 梁建文,张浩,Vincent W Lee. 地下双洞室在SV波入射下动力响应问题解析解[J]. 振动工程学报, 2004, 17(2): 132-140 |
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| 作者姓名： | 梁建文 张浩 Vincent W Lee |
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| 作者单位： | 1. 天津大学土木工程系,天津,300072
2. Department of Civil Engineering,University of Southern California,Los Angeles,CA,90089 |
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| 基金项目： | 国家自然科学基金资助项目 (编号 :5 0 3780 6 3)，教育部优秀青年教师资助计划，教育部留学回国人员科研启动基金资助项目 |
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| 摘 要： | 采用波函数展开法给出了地下双洞室在平面SV波入射下动力响应二维问题的一个解析解，数值结果表明：当两个洞室之间距离较近时，洞室之间的相互作用对地下双洞室的动应力集中具有显著的放大作用，两个洞室情况动应力集中系数可能达到单个洞室的5．2倍以上，动应力集中系数的峰值位于两个洞室相对的区域内。
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| 关 键 词： | 地下洞室 应力波 动力响应 平面SV波 散射 抗震设计 |
| 修稿时间： | 2003-05-06 |
An Analytical Solution for Dynamic Stress Concentration of Underground Twin Cavities due to Incident SV Waves |
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| Liang Jianwen Zhang Hao. An Analytical Solution for Dynamic Stress Concentration of Underground Twin Cavities due to Incident SV Waves[J]. Journal of Vibration Engineering, 2004, 17(2): 132-140 |
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| Authors: | Liang Jianwen Zhang Hao |
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| Abstract: | An analytical solution for two-dimensional dynamic stress concentration of underground twin cavities for incident plane SV waves is derived by wave function expansion technique.It is shown that interaction between two cavities may prominently amplify the dynamic stress concentration of the cavities when the two cavities are close,and the dynamic stress concentration factor may reach to 5.2 times of that for the case of single cavity,and the maximum dynamic concentration factors are located at the boundaries opposite to each other. |
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| Keywords: | underground cavities stress waves dynamic response plans SV waves scattering |
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