摘要
讨论了浅海桶形基础平台负压沉贯渗流场有限元分析方法。通过模型实验结果与有限元分析结果的对比 ,验证有限元法的可靠性。将有限元法用于桶形基础平台负压沉贯渗流场的计算 ,得到沉贯过程中许用负压随插深的变化 ,用于指导平台就位施工时的负压控制。不同插深时 ,相应许用负压下的桶内、外壁渗流水头和水头梯度分布的计算结果 ,用于沉贯阻力的计算。
Finite element method of offshore bucket foundation platform suction penetration seepage field is discussed in this paper. The reliability of this method has been proved by comparison between the results of model test and finite element analysis model. The method is applied to the computation of the seepage field. The computed results give the allowable suction pressure varying with the penetration depth, which can be used for guiding the suction pressure control of the platform installation. The results also give the seepage water head and water head gradient on both sides of the bucket wall corresponding to the allowable suction pressure, which can be used for the computation of the penetration resistance.
出处
《黄渤海海洋》
CSCD
2000年第4期19-23,共5页
Journal of Oceanography of Huanghai & Bohai Seas
基金
国家"8 63"高新技术研究发展计划! ( 863-82 0 -1 0 -0 1 )资助
