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《Journal of Zhejiang University(Engineering Science)》 2007-01
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Numerical simulation of bore against sheet-pile groin

CHEN Hai-jun~1,XU Chang-jie~1,CAI Yuan-qiang~1,XUAN Wei-li~2(1.Geotechnical Engineering Institute,Zhejiang University,Hangzhou 310027,China; 2.Manage Bureau of Qiantang River,Zhejiang Province,Hangzhou 310016,China)  
Numerical simulation of bore against sheet-pile groin was carried out to study the stress characteristic of sheet-pile groin under the impact of bore.By using standard turbulence model and volume of fluid(VOF) method,flow fields and the position of free surface were obtained and the rule of time history and the space distribution of bore pressure on the sheet-pile groin was revealed: 1) Bore pressure on the sheet-pile groin rises rapidly when tidal bore impacts sheet-pile groin.The duration of rise is about 2 s,and then bore pressure of groin begins to fall for about 1 s.Finally bore pressure drives steady stage with fluctuation within a narrow range.The peak values of bore pressure on sheet-pile groin at different heights occur almost at the same time.2) The maximum bore pressure on sheet-pile groin occurs at still water line.The vertical distribution of bore pressure on sheet-pile groin is linear above the still water line and approximately rectangular below the still water line.
【CateGory Index】: TV139.26
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