UJI MODEL FISIK RAYAPAN GELOMBANG PADA REVETMEN BUIS BETON

JURNAL TEKNIK HIDRAULIK Pub Date : 2021-06-30 DOI:10.32679/JTH.V12I1.643

J. Ginting, E. Simanjuntak, Ida Ayu Irawati Diah Ratna Putra

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Abstract

Buis Beton (Precast concrete pipe) revetment is a common coastal structure to protect the shoreline from erosion. However, it is common that this type of structure face high wave run up. A continuous wave run up on the slope of the structure may reduce the life service of Buis Beton revetment. The objective of this research is to create scientific based guidance to design an efficient Buis Beton revetment against wave run up. A physical modelling test is conducted to understand the relationship between wave run up and Buis Beton revetment. The test scenario is based on the slope of the structure (θ), structure height (L), buis beton diameter (φ), incoming wave height (Hi) and wave period (T). The physical modelling is conducted in 2D wave flume with laboratory scale of 1:10 with regular wave simulation. Wave run up is observed using a video camera which is later processed digitally to acquire the wave run up data. This research shows that the relative wave run up has a reciprocal functional relationship with the Iribarren Number parameter. In general, wave run up height on Buis Beton revetment is less than or equal to 2.64 the wave height, Hm0.Keywords: Revetment, buis beton, wave run-up, physical modelling

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检测混凝土暴露波的物理模型

预制混凝土管护岸是一种常见的海岸结构，用于保护海岸线免受侵蚀。然而，这种类型的结构面临高浪涌是常见的。连续的波浪作用在结构的斜坡上，可能会缩短布依斯比顿护岸的使用寿命。本研究的目的是为设计一个有效的防浪护岸提供科学的指导。通过物理模拟试验来了解波浪上升与比斯比顿护岸之间的关系。试验方案基于结构坡度θ、结构高度L、结构墩直径φ、入波高度Hi、波周期T，在实验室1:10比例尺的二维波浪水槽中进行物理模拟，进行规则波浪模拟。用摄像机观察波的上升，然后对摄像机进行数字处理以获取波的上升数据。研究表明，相对波幅与iribare数参数呈反函数关系。一般情况下，碧墩护岸上浪涌高度小于等于浪高的2.64。关键词:护岸，护堤，波浪助跑，物理建模

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JURNAL TEKNIK HIDRAULIK

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