STABILITY OF HIGH DENSITY CUBES IN RUBBLE MOUND BREAKWATERS

Yalcin Yuksel,Esin Cevik,Irem Gumuscu,Ahmet Cevdet Yalciner,H Alper Kaya,Marcel Van Gent,Z Tugce Yuksel

doi:10.9753/icce.v36v.structures.4

Abstract

The stability number for rubble mound breakwaters is a function of several parameters and depends on unit shape, placing method, slope angle, relative density, etc. In this study two different densities for cubes in breakwater armour layers were tested to determine the influence of the density on the stability. The experimental results show that the stability of high density blocks were found to be more stable and the damage initiation for high density blocks started at higher stability numbers compared to normal density cubes.

Highlights

The effect of changing the density of the used material was investigated by only a very few studies in the past, the densities of the used materials in Hudson’s tests were between 2146 kg /m3 and 3076 kg/m3
ABTRACT The stability number for rubble mound breakwaters is a function of several parameters and depends on unit shape, placing method, slope angle, relative density, etc
Van Gent et al (2001) did tests with high density cubes in a traditional double top-layer and single top layer. They revealed that high density cubes are as stable as normal density cubes; i.e., damage occurred for the same or higher values of stability number in double layer case

Summary

Introduction

The effect of changing the density of the used material was investigated by only a very few studies in the past, the densities of the used materials in Hudson’s tests were between 2146 kg /m3 and 3076 kg/m3. ABTRACT The stability number for rubble mound breakwaters is a function of several parameters and depends on unit shape, placing method, slope angle, relative density, etc. In this study two different densities for cubes in breakwater armour layers were tested to determine the influence of the density on the stability. Normal concrete density is 2.4 t/m3, but increasing the density of units (for the same loading conditions) will reduce the required size of the armour units according to stability formulas.

Results

Conclusion