高桩码头桩群水流阻力近似计算方法

发布时间：2018-02-27 21:33

本文关键词： 高桩码头桩群阻力码头桩群阻水模型数学模型物理模型　出处：《水电能源科学》2017年08期 　论文类型：期刊论文

【摘要】：针对港口建设可行性研究中高桩码头桩群阻力特征基础性研究数据缺乏的问题,引入群桩中单桩的纵向遮蔽影响系数和横向干扰影响系数,提出了桩群阻力计算公式;应用Fluent标准κ-ε紊流模型构建了码头桩群阻水模型,利用数学模型获得了顺水流纵向桩体的遮蔽影响系数、垂直水流横向桩体的干扰系数;同时采用物理模型,在30m×3m×0.26m(长×宽×高)的循环水槽中进行了高桩码头桩群模型试验。结果表明,桩群阻力试验值与计算值相接近,该公式可为实际高桩码头桩群涉水问题的应用研究提供借鉴。
[Abstract]:In view of the lack of basic research data on pile group resistance characteristics of high pile wharf in the feasibility study of port construction, this paper introduces the longitudinal shielding influence coefficient and transverse interference influence coefficient of single pile group pile group, and puts forward the calculation formula of pile group resistance. The Fluent standard 魏-蔚 turbulence model is used to construct the water blocking model of pile group of wharf, and the influence coefficient of shielding and the interference coefficient of vertical flow lateral pile are obtained by using mathematical model, and the physical model is used at the same time. The pile group model test of high pile wharf is carried out in a circulating tank of 30m 脳 3m 脳 0.26m (length 脳 width 脳 height). The results show that the test value of pile group resistance is close to the calculated value, and this formula can be used as a reference for the practical application research of pile group in high pile wharf.
【作者单位】：江苏省水利科学研究院;南京市滁河河道管理处;
【基金】：江苏省水利科技项目(2015032)
【分类号】：U656.113

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