A Nonlinear Rheological Model of Soft Clay and Its Application in Settlement of Sunk Ship  

作　　者：王元战 王婷婷 肖忠 孙连成 赵冲久 

机构地区：[1]Tianjin Key Laboratory of Harbor and Ocean Engineering,Tianjin University [2]The Key Laboratory of Engineering Silt,Tianjin Research Institute of Water Transport Engineering

出　　处：《China Ocean Engineering》2008年第3期465-476,共12页中国海洋工程（英文版）

基　　金：the National Natural Science Foundation of China (Grant No.50579046);the Science and Technology Project of West China Traffic Construction (Grant No.200632800003-06)

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.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.

关 键 词：littoral soft clay rheological model sunk ship SETTLEMENT 

分 类 号：O37[理学—流体力学]