The Profile Volume Approach to Beach Nourishment
The Profile Volume Approach to Beach Nourishment
复制标题
海滩营养的剖面体积方法
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
T. Kana
中科院分区：
文献类型：
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作者：
T. Kana
本文的目的是概述一个设计方法，海滩营养，强调剖面体积。该方法的优点和缺点进行了讨论，并与其他分析技术预测海滩填料的需求。单位剖面体积（参考等高线之间的砂量）是确定海滩状况、比较一个河段与另一个河段以及计算盈余或亏损量的主要依据。通过选择包含从前沙丘底部到低潮涉水深度的整个碎波带的等值线，忽略了滩面坡度和海滩地貌的日常和小规模扰动。一个理想的目前的配置文件开发的问题，并作为比较配置文件的基础，在没有结构的情况下，自然海岸线的划定，并估计砂赤字。设计方法基于这样一个概念，即无论项目如何建造，入射波将很快改变填土的坡度，并将其重新分布到该海岸段的平衡剖面和平面形状中。
The purpose of this paper is to outline a design approach to beach nourishment that emphasizes profile volumes. The advantages and disadvantages of the method are discussed and related to other analytical techniques for predicting beach fill needs. Unit profile volumes (the sand quantity between reference contours) are a primary basis for defining the condition of the beach, comparing one reach with another and computing surplus or deficit quantities. By selecting contours that encompass the entire surf zone from the base of foredunes to low-tide wading depth, daily and small-scale perturbations of beachface slope and beach amorphology are ignored. An ideal present profile is developed for the reach in question and used as a basis for comparison of profiles, for delineation of the natural shoreline in the absence of structures, and for estimate of sand deficits. The design approach is predicated on the concept that regardless of how a project is constructed, incident waves will soon modify the slope of the fill and redistribute it into an equilibrium profile and planform for that section of coast.