Next Article in Journal
Acknowledgement to Reviewers of Journal of Marine Science and Engineering in 2018
Next Article in Special Issue
Applicability of Nonlinear Wavemaker Theory
Previous Article in Journal
A Mild-Slope System for Bragg Scattering of Water Waves by Sinusoidal Bathymetry in the Presence of Vertically Sheared Currents
Previous Article in Special Issue
Wave Impact Pressures on Stepped Revetments
Article Menu

Export Article

Open AccessArticle
J. Mar. Sci. Eng. 2019, 7(1), 10; https://doi.org/10.3390/jmse7010010

Damage Characterization of Rock Slopes

1
Department of Hydraulic Engineering, Faculty of Civil Engineering, Delft University of Technology, 2628CN Delft, The Netherlands
2
Department of Coastal Structures and Waves, Deltares, 2629HV Delft, The Netherlands
*
Author to whom correspondence should be addressed.
Received: 5 December 2018 / Revised: 21 December 2018 / Accepted: 2 January 2019 / Published: 9 January 2019
(This article belongs to the Special Issue Selected Papers from Coastlab18 Conference)
Full-Text   |   PDF [4745 KB, uploaded 10 January 2019]   |  

Abstract

In order to design reliable coastal structures, for present and future scenarios, universal and precise damage assessment methods are required. This study addresses this need, and presents improved damage characterization methods for coastal structures with rock armored slopes. The data used in this study were obtained from a test campaign carried out at Deltares within the European Union (EU) Hydralab+ framework. During these tests, advanced measuring techniques (digital stereo photography) were used, which are able to survey the full extension of the structure and identify local variations of damage. The damage characterization method proposed here is based on three fundamental aspects: clear damage concepts, precise damage parameters, and high resolution measuring techniques. Regarding damage concepts, first, the importance of the characterization width is studied. For damage parameters obtained from the maximum erosion depth observed in a given width (E3D,m), the measured damage increases continuously with increased characterization width. However, for damage parameters obtained from width-averaged profiles (S and E2D), the measured damage reduces with increased characterization width. Second, a new definition of damage limits (damage initiation, intermediate damage, and failure) is presented and calibrated. Regarding the damage parameters, the parameter E3D,5, which describes the maximum erosion depth within the characterization width, is recommended as a robust damage parameter for conventional and non-conventional configurations based on four main characteristics: its low bias, its low random error, the ability to distinguish damage levels, and its validity and suitability for all types of structures (conventional and non-conventional). In addition, the results from this study show that the damage measured with the damage parameter E3D,5 presents an extreme value distribution. View Full-Text
Keywords: rock slopes; damage characterization; damage parameters; physical model tests rock slopes; damage characterization; damage parameters; physical model tests
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

De Almeida, E.; Van Gent, M.R.A.; Hofland, B. Damage Characterization of Rock Slopes. J. Mar. Sci. Eng. 2019, 7, 10.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
J. Mar. Sci. Eng. EISSN 2077-1312 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top