X型系混凝土块软体排水毁量化分析及整治效果评估

发布时间：2018-03-06 11:41

本文选题：X型排　切入点：量化分析方法　出处：《武汉大学学报(工学版)》2017年04期 　论文类型：期刊论文

【摘要】：X型系混凝土块软体排(以下简称X型排)是目前长江中下游应用最为广泛的一种护滩建筑物.由于X型排结构复杂,影响排体水毁的不确定因素较多,目前对于X型排水毁程度及结构失效的判别多采用定性分析,缺乏量化分析方法以及评价其水毁失效的指标.针对X型排护滩特性和结构特征,将排体水毁面积作为衡量X型排破坏程度的依据,通过物理模型试验,得到各外界因素与排体水毁面积间的关系.研究结果表明:X型排水毁程度主要与3个无量纲量有关,分别是弗汝德数Fr、边滩阻水宽度Sw和淹没状态下滩上相对水深Rd.建立X型排水毁面积方程,预测排体的水毁程度及整治效果,并通过实例进行验证.
[Abstract]:X type concrete block soft row (hereinafter referred to as X type row) is one of the most widely used beach protection buildings in the middle and lower reaches of the Yangtze River at present. Because of the complex structure of X type concrete block, there are many uncertain factors affecting the water damage of the drainage body. At present, qualitative analysis is used to judge the damage degree of X type drainage and failure of structure. There is a lack of quantitative analysis method and index to evaluate the failure of water damage. In view of the characteristics and structure characteristics of X type drainage and beach protection, Taking the water damage area of the drainage body as the basis to measure the damage degree of type X drainage, the relationship between the external factors and the water damage area of the discharge body is obtained through physical model tests. The results show that the degree of water destruction of type X drainage is mainly related to three dimensionless quantities. Froude number Frw, the width of water barrier SW and the relative depth of water on the beach under submerged condition, respectively. The X type drainage damage area equation is established to predict the degree of water damage and the regulation effect of the drainage body, and it is verified by an example.
【作者单位】：重庆交通大学国家内河航道整治工程技术研究中心;河北农业大学理工学院;
【基金】：交通运输部科技项目重大专项(编号:201132881450) 重庆市研究生科研创新项目(编号:CYB15107)
【分类号】：U617.9

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