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Research of air-cushion isolation effects on high arch dam reservoir 被引量:4
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作者 Shao-Jie zhang Jiang Chen +1 位作者 yuan-ze zhang Hao-Wu Liu 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2011年第5期675-686,共12页
A three-dimensional (3D) finite element model of air-cushion isolated arch dam is presented with the nonlinear gas-liquid-solid multi-field dynamic coupling effect taken into account.In this model,the displacement f... A three-dimensional (3D) finite element model of air-cushion isolated arch dam is presented with the nonlinear gas-liquid-solid multi-field dynamic coupling effect taken into account.In this model,the displacement formulation in Lagrange method,pressure formulation in Euler method,nonlinear contact model based on Coulomb friction law are applied to the air-cushion,reservoir and contraction joint domain,respectively.The dynamic response of Jinping I arch dam with a height of 305 m is analyzed using the seismic records of the Wenchuan Earthquake in 2008.Numerical results show that the air-cushion isolation reduces significantly the hydrodynamic pressure as well as the opening width for the contraction joints of high arch dam. 展开更多
关键词 Air-cushion · Gas-liquid-solid multi-field coupling · Contraction (transverse) joint · Hydrodynamic pressure · Wenchuan Earthquake
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