Syahri Wardani, Adi Mawardin

Perencanaan Struktur Pemecah Gelombang dengan Sisi Miring pada Kawasan Pesisir ULPLTU Sumbawa

Introduction

Perencanaan struktur pemecah gelombang dengan sisi miring pada kawasan pesisir ulpltu sumbawa. Desain struktur pemecah gelombang sisi miring di ULPLTU Sumbawa atasi erosi pantai. Menggunakan tetrapod & batu lokal, solusi hemat biaya, ramah lingkungan, & ekonomis.

Abstract

The coastal area of ULPLTU Sumbawa, located in Labuhan Kertasari, Taliwang District, West Sumbawa Regency, is affected by coastal erosion caused by shoreline retreat and wave action. Therefore, the objective of this research is to design a breakwater structure with inclined sides to mitigate the height of incoming waves. In this study, the data used includes primary data through direct field observations, while secondary data consists of wind data, tidal data, topographic data, and bathymetric data.  Data processing methods involve wind data analysis, fetch, wave characteristics, bathymetry, and topography. After analyzing all the data, the breakwater structure was planned. The resulting design comprises a mound-type breakwater made of tetrapods and natural stones. It has a slope of 1:1.5 (33.7°), a crest width of 3.7 m, a crest elevation of 3.86 m, a structure height of 5 m, with the main armor layer unit weight W=4,079 kg, the second armor layer weight W/10=544.8 kg, and the core armor layer weight W/200=27 kg. Based on the results of the planning of the breakwater structure, it has been recommended to use local materials to reduce costs and support the local economy by ensuring the quality of materials according to standards. This solution is not only cost-efficient but also environmentally friendly, contributes to environmental conservation, and provides significant economic benefits to the surrounding community.

Review

This paper, "Perencanaan Struktur Pemecah Gelombang dengan Sisi Miring pada Kawasan Pesisir ULPLTU Sumbawa," addresses a critical issue of coastal erosion affecting the ULPLTU Sumbawa coastal area in Indonesia. The research sets out to design an inclined-side breakwater structure specifically aimed at mitigating the height of incoming waves, thereby combating shoreline retreat and wave action. The study's focus on a practical engineering solution for a specific, affected region highlights its immediate relevance and potential impact on coastal protection and community resilience in vulnerable areas. The objective is clearly defined, setting a strong foundation for the subsequent design process. The methodology employed appears robust, integrating both primary and secondary data sources. Primary data was gathered through direct field observations, which is crucial for accurate site-specific understanding. This was complemented by secondary data, including essential meteorological and hydrological parameters such as wind, tidal, topographic, and bathymetric data. The processing of this data, encompassing wind analysis, fetch, wave characteristics, bathymetry, and topography, forms the basis for the subsequent breakwater design. The resulting design details a mound-type breakwater utilizing tetrapods and natural stones, with specific dimensions and material weights provided, including a slope of 1:1.5, a crest width of 3.7 m, a crest elevation of 3.86 m, a structure height of 5 m, and precise armor unit weights. These detailed specifications indicate a comprehensive engineering approach to the design. A significant strength of this research lies in its practical recommendations. The proposal to utilize local materials for the breakwater construction is commendable, as it not only promises cost reduction but also actively supports the local economy. This approach is framed as both cost-efficient and environmentally friendly, contributing to environmental conservation and providing economic benefits to the surrounding community. While the abstract effectively outlines the design and its advantages, a deeper discussion on the *quantifiable* reduction in wave height achieved by this specific design, and a more detailed exposition on the "standards" for local materials to ensure quality, would further enhance the paper's contribution. Overall, this study presents a well-conceived and locally pertinent engineering solution to a pressing coastal challenge.

Full Text

Comments

You need to be logged in to post a comment.