| 淤砂层模型对上层理想流体动力反应的影响——平面SV波入射 |
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| 引用本文： | 王进廷,张楚汉,金峰.淤砂层模型对上层理想流体动力反应的影响——平面SV波入射[J].岩土力学,2008,29(9):2359-2364. |
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| 作者姓名： | 王进廷 张楚汉 金峰 |
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| 作者单位： | 清华大学,水沙科学与水利水电工程国家重点实验室,北京,100084 |
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| 摘 要： | 采用解析方法，分析了平面SV波斜入射时弹性半空间-淤砂层-理想流体层系统的动力反应，其中将淤砂层分别模拟为线弹性固体、黏弹性固体、理想流体和黏性流体等不同特性的介质，并与将淤砂层模拟为两相多孔介质的计算结果进行了比较。研究表明在平面SV波斜入射的情况下，当渗透系数很小时，多孔介质可以近似简化为黏弹性固体。
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| 关 键 词： | 弹性半空间 淤砂层 理想流体 平面SV波 动力反应 |
| 收稿时间： | 2006-12-19 |
Effect of sediment model on dynamic pressures of overlying ideal fluid due to SV wave incidence |
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| WANG Jin-ting,ZHANG Chu-han,JIN Feng.Effect of sediment model on dynamic pressures of overlying ideal fluid due to SV wave incidence[J].Rock and Soil Mechanics,2008,29(9):2359-2364. |
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| Authors: | WANG Jin-ting ZHANG Chu-han JIN Feng |
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| Institution: | State Key Laboratory of Hydroscience and Hydraulic Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | Through the analytical solutions, the dynamic responses of elastic half-space-sediment-ideal fluid system due to SV wave incidence are investigated. The sediment is modelled respectively as the elastic solid, viscoelastic solid, ideal fluid and vsicous fluid. The results obtained are compared with the case in which sediment is viewed as a two-phase poroelastic medium. It is found that the two-phase poroelastic medium can be simplified approximately as a viscoelastic solid when its permeability is relatively small (k≤10-3 m/s). |
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