Penentuan Koefisien Hexaloc Berdasarkan Packing Density, Coverage, Dan Porositas Pada Struktur Pantai Dengan Variasi Kemiringan Melalui Metode Eksperimen

Syafitri, Novia Widyah (2026) Penentuan Koefisien Hexaloc Berdasarkan Packing Density, Coverage, Dan Porositas Pada Struktur Pantai Dengan Variasi Kemiringan Melalui Metode Eksperimen. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini bertujuan menganalisis karakteristik geometrik pelindung pantai Concrete Armour Unit jenis Hexaloc, yang meliputi layer co efficient, porositas, coverage, dan packing density terhadap variasi kemiringan lereng. Pengujian dilakukan melalui eksperimen kering (tilt table test) pada kemiringan 1:1 hingga 1:2 menggunakan konfigurasi satu lapis (single layer) dengan pola diamond grid dan square grid. Hasil penelitian menunjukkan pola diamond grid menghasilkan coverage dan packing density menurun, sedangkan porositas meningkat akibat gaya gravitasi yang merenggangkan formasi kuncian antar unit. Sebaliknya, nilai layer co efficient Hexaloc terbukti konstan pada angka 1,45 karena ketebalan lapisan murni ditentukan oleh dimensi fisik unit, bukan oleh kemiringan lereng. Kesimpulannya, efektivitas breakwater Hexaloc sangat bergantung pada optimasi kemiringan lereng untuk menyeimbangkan kekuatan kuncian susunan dan besaran rongga peredam gelombang.
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This study aims to analyze the geometric characteristics of the Hexaloc Concrete Armour Unit, specifically focusing on the layer coefficient, porosity, coverage, and packing density against variations in slope inclination. The research utilized a dry experiment (tilt table test) on slopes ranging from 1:1 to 1:2, applying a single layer configuration with diamond and square grid patterns. The results indicate that the diamond grid yields higher coverage and packing density compared to the square grid. As the slope becomes steeper, the coverage and packing density decrease, while porosity increases due to gravitational forces widening the inter unit gaps. Conversely, the layer coefficient of Hexaloc remains constant at 1.45, indicating that the layer thickness is determined purely by the physical dimensional of the unit, unaffected by the slope angle. In conclusion, the effectiveness of a Hexaloc breakwater heavily relies on optimizing the slope inclination to balance the interlocking strength of the arrangement and the wave dissipating voids.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Packing Density, coverage, porositas, hexaloc, unit beton pelindung, packing density, coverage, packing density, porosity, hexaloc, concrete armour unit
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC333 Breakwaters
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Novia Widyah Syafitri
Date Deposited:	31 Jul 2026 08:40
Last Modified:	31 Jul 2026 08:42
URI:	http://repository.its.ac.id/id/eprint/140755

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