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題名 | Short-Crested Wave-Induced Seabed Response with Variable Permeability=短峰波引致變透水係數海底床之壤應力分析 |
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作者 | 鄭東生; | 書刊名 | 中國工程學刊 |
卷期 | 20:4 1997.07[民86.07] |
頁次 | 頁377-388 |
分類號 | 443.1 |
關鍵詞 | 短峰波; 變透水係數; 土壤反應; Short-crested waves; Soil response; Variable permeability; |
語文 | 英文(English) |
中文摘要 | 由於土壤壓密效應,海底床之透水係數隨土壤深度而變化。然而,往昔相關文獻 大多假設海底床之透水係數為均勻分佈。本文提出一正確解析解來探討短峰波引致變透水係 數海底床土壤應力。波浪引致之孔隙壓力與有效應力乃由一變係數微分方程式求得。由本文 數值結果得知,變透水係數對波浪引致之土壤反應之影響甚為顯著。 |
英文摘要 | The soil permeability of marine sediments varies with burial soil depth because of consolidation under overburden pressure. However, most previous investigations available for water wave-seabed interaction problem have simply assumed seabed with uniform permeability. This paper proposes an analytical solution to investigate the short-crested wave-induced soil response in a porous seabed with variable permeability. The pore pressure and effective stresses generated by a three-dimensional short-crested wave system are obtained from a set of equations incorporating a variable permeability. The numerical results indicate that the effect of variable permeability on the wave-induced soil response is significant. |
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