斜坡式防波堤干砌石护面厚度的计算

Calculation of the Thickness of Dry-stone Armour of a Sloping Breakwater

本文通过水工模型试验及现场调查资料,总结出渔港中常见的斜坡式防波堤干砌石护面厚度的计算公式,其中考虑到了块体间摩擦力的影响,并在公式中反映出波长(周期)及水深的影响。计算结果同现场资料有良好的一致性,比以前国内外的一些计算公式更符合工程实际,该公式已列入农业部编制的水产工程技术规范。对条件相近的中小港口防波堤干砌石护面计算也可应用。

In this paper,based on hydraulic model test and field investigation data,a formula for calculating the thickness of dry — stone armour of a sloping breakwater in fishing ports, in which, the influences of friction force between blocks is considered and the influences of wave length (period) and water depth are taken into account. It is shown that the calculated results are in good agreement with the field data and the formula is more practical for engineering than those in China and other countries. The formula has been listed in the 《Technical Specifications for Engineering of Aquatic Product》 worked out by the Ministry of Agriculture, and can be also used for calculations of dry—stone armours of sloping breakwaters of middle and small harbours