| 弹性准饱和土中球空腔的动力响应 |
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| 引用本文： | 徐长节,马晓华,蔡袁强. 弹性准饱和土中球空腔的动力响应[J]. 岩土工程学报, 2005, 27(8): 934-938 |
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| 作者姓名： | 徐长节 马晓华 蔡袁强 |
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| 作者单位： | 浙江大学岩土工程研究所；浙江大学岩土工程研究所 浙江杭州310027；浙江杭州310027； |
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| 基金项目： | 国家自然科学基金资助项目(50478081) |
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| 摘 要： | 采用工程上通用的土力学模型,考虑饱和度对球空腔动力响应的影响,利用Laplace变换求解了弹性准饱和土中球空腔的动力响应问题,得到了变换域内的解析解。借助数值Laplace反变换,数值分析了弹性准饱和土中球空腔动力响应的位移、应力及孔压的变化规律。为分析地下结构动力响应提供了一种有效的方法,模型符合工程实际,有一定的工程应用价值。
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| 关 键 词： | 弹性 准饱和土 球空腔 动力响应 |
| 文章编号： | 1000-4548（2005）08-0934-05 |
| 收稿时间： | 2004-10-19 |
| 修稿时间： | 2004-10-19 |
Dynamic response of spherical cavity in nearly saturated elastic soils |
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| XU Chang-jie,MA Xiao-hua,CAI Yuan-qiang. Dynamic response of spherical cavity in nearly saturated elastic soils[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(8): 934-938 |
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| Authors: | XU Chang-jie MA Xiao-hua CAI Yuan-qiang |
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| Affiliation: | Institution of Geotechnic Engineering Zhejiang University Hangzhou 310027 China |
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| Abstract: | The generally-adopted soil model in engineering was adopted for analysing the dynamic response of the spherical cavity in nearly saturated elastic soils. The analytic solution in transformed domain was obtained by the method of Lapace transformation, and numerical results were presented through Laplace inversion. The displacements, stresses and pore water pressure were investigated during the response and compared with the elastic case, and some features of the problem were revealed. The model is applicable for engineering practice and provides an effective method for analysing the similar problem about dynamic response of underground structure. |
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| Keywords: | elastic nearly saturated soils spherical cavity dynamic response |
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