| A Nonlinear Rheological Model of Soft Clay and Its Application in Settlement of Sunk Ship |
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| 作者姓名： | 王元战 王婷婷 肖忠 孙连成 赵冲久 |
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| 作者单位： | Tianjin Key Laboratory of Harbor and Ocean Engineering，Tianjin University，The Key Laboratory of Engineering Silt，Tianjin Research Institute of Water Transport Engineering |
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| 基金项目： | 国家自然科学基金，Science and Technology Project of West China Traffic Construction |
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| 摘 要： | A one-dimensional consolidation-creep model test on the creep deformation of soft muddy clay in the littoral area of Tianjin is performed. A nonlinear rheologic model is established and the model coefficients are determined, in consideration of the characteristics of soft muddy clay. Furthermore, a settlement equation is deduced from the theologic model and verified by the field settlement measurements of Beitang Reservoir dam in Tianjin littoral area. Finally, the settlement e- quation is applied in calculating the settlement of ＂FAIRWAY-＂ suction dredger, which sunk in the external channel of Tianjin Port, induced by the soft clay consolidation of seabed. These results provide useful information for the decision of salvage plan.
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| 关 键 词： | 沿海软质粘土 流变模式 沉船 沉降现象 |
A Non-Linear Rheological Model of Soft Clay and Its Application in Settlement of Sunk Ship |
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| WANG Yuan-zhan,WANG Ting-ting,XIAO Zhong,SUN Lian-cheng,ZHAO Chong-jiu.A Nonlinear Rheological Model of Soft Clay and Its Application in Settlement of Sunk Ship[J].China Ocean Engineering,2008,22(3):465-476. |
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| Authors: | WANG Yuan-zhan WANG Ting-ting XIAO Zhong SUN Lian-cheng ZHAO Chong-jiu |
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| Institution: | [1]Tianjin Key Laboratory of Harbor and Ocean Engineering, Tianjin University, Tianjin 300072, China [2]The Key Laboratory of Engineering Silt, Tianjin Research Institute of Water Transport Engineering, Tianjin 300456, China |
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| Abstract: | A one-dimensional consolidation-creep model test on the creep deformation of soft muddy clay in the littoral area of Tianjin is performed. A non-linear rheologic model is established and the model coefficients are determined, in consideration of the characteristics of soft muddy clay. Furthermore, a settlement equation is deduced from the rheologic model and verified by the field settlement measurements of Beitang Reservoir dam in Tianjin littoral area. Finally, the settlement equation is applied in calculating the settlement of "FAIRWAY" suction dredger, which sunk in the external channel of Tianjin Port, induced by the soft clay consolidation of seabed. These results provide useful information for the decision of salvage plan. |
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| Keywords: | littoral soft clay rheological model sunk ship settlement |
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