The Wave Run-Up Simulator, Theory and First Pilot Test

Meer, Jentsje van der; Provoost, Yvo; Steendam, Gosse Jan

doi:10.9753/icce.v33.structures.65

Cited by 11 publications

(13 citation statements)

References 21 publications

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“…Over an approximate 50m long stretch of embankment, two tests were performed on breach initiation due to wave overtopping using the 4m wide wave overtopping simulator developed by Van der Meer [5], [6] [7]. Also two breach initiation experiments had been performed using a 2m wide overflow simulator developed specifically for this experiment by Delft University of Technology.…”

Section: Test Methodologymentioning

confidence: 99%

Comparing overflow and wave-overtopping induced breach initiation mechanisms in an embankment breach experiment

et al. 2016

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Abstract. As part of the SAFElevee project Delft University of Technology collabored with Flanders HydraulicsResearch, and Infram B.V. in the preperation and execution of a full scale embankment breach experiment in November 2015. This breach experiment was performed on an 3.5m high embankment with a sand core and clay outer layer situated along the tidal river Scheldt in Belgium near Schellebelle. During the experiment a wave overtopping simulator and overflow simulator were used to initiate a breach. Both simulators were placed near the top of the waterside slope. The use of the simulators facilitated comparison between the effects of continueous overflow and the effects of intermittent wave overtopping. This paper presents the data collected during the experiment, describe the development of hypotheses on the failure processes using the latest insights, and comment on the failure initiation process of a grass covered flood embankment with a clay outer layer and a sandy core.

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Section: Test Methodologymentioning

confidence: 99%

Comparing overflow and wave-overtopping induced breach initiation mechanisms in an embankment breach experiment

et al. 2016

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“…This phenomenon is divided into 3 steps with equations detailed in (van der Meer et al, 2018). We give a brief summary here of the used equations :…”

Section: Overtopping Equationsmentioning

confidence: 99%

“…More recently, the EurOtop manual (van der Meer et al, 2018) laid an extensive set of recommendations and experimentally based equations in order to functionnally model the overtopping phenomenon . Bergeijk et al (2019) also provided a more refined analytical model of overtopping using a set of coupled equations validated by numerical simulations and experiments.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity analysis of erosion on the landward slope of an earthen flood defence submitted to wave overtoppings

Lutringer

Poupardin²,

Sergent³

et al. 2022

Preprint

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Abstract. The study aims to provide a complete analysis framework applied to an earthen dyke located in Camargue, France. This dyke is regularly submitted to erosion on the landward slope that needs to be repaired. Improving the resilience of the dyke calls for a reliable model of damage frequency. The developed system is a combination of copula theory, empirical wave propagation and overtopping equations as well as a global sensitivity analysis in order to provide the return period of erosional damage on a set dyke while also providing recommendations in order for the dyke to be reinforced as well the model to be self-5 improved. The results give a good correspondence, within uncertainty range, between the model prediction of return periods and the on-site observation (≈ two-year return period). The mean of the return periods is slightly higher with an average return period of six years but the peak of the distribution is located around the two years mark. The sensitivity analysis shows that the geometrical characteristics of the dyke - slope angles and dyke height - are the ones carrying the highest amount of uncertainty into the system, showing that maintaining a homogeneous dyke is of great importance. Some empirical parameters intervening inside the propagation and overtopping process are also fairly uncertain and suggest that using more robust methods at their corresponding steps could improve the reliability of the framework. The obtained return periods have been confirmed by current in situ observations but the uncertainty increases for the most severe events due to the lack of long-term data.

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“…On an approximate 50 m long stretch of embankment along the river Scheldt near Schellebelle in Belgium, two tests were performed on breach initiation due to wave overtopping and overflow using respectively the 4m wide simulators developed by Van der Meer (2012) and the 2m wide overflow simulator developed by Delft University of Technology (Van Damme et al, 2016). The purpose of this experiment was to obtain more knowledge about initial failure and breaching processes of dikes.…”

Section: Methodsmentioning

confidence: 99%

Morphological Changes Along a Dike Landside Slope Sampled by 4d High Resolution Terrestrial Laser Scanning

Herrero-Huertaa¹,

Lindenbergh²,

Ponsioen³

et al. 2016

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:Emergence of light detection and ranging (LiDAR) technology provides new tools for geomorphologic studies improving spatial and temporal resolution of data sampling hydrogeological instability phenomena. Specifically, terrestrial laser scanning (TLS) collects high resolution 3D point clouds allowing more accurate monitoring of erosion rates and processes, and thus, quantify the geomorphologic change on vertical landforms like dike landside slopes. Even so, TLS captures observations rapidly and automatically but unselectively. In this research, we demonstrate the potential of TLS for morphological change detection, profile creation and time series analysis in an emergency simulation for characterizing and monitoring slope movements in a dike. The experiment was performed near Schellebelle (Belgium) in November 2015, using a Leica Scan Station C10. Wave overtopping and overflow over a dike were simulated whereby the loading conditions were incrementally increased and 14 successful scans were performed. The aim of the present study is to analyse short-term morphological dynamic processes and the spatial distribution of erosion and deposition areas along a dike landside slope. As a result, we are able to quantify the eroded material coming from the impact on the terrain induced by wave overtopping which caused the dike failure in a few minutes in normal storm scenarios (Q = 25 l/s/m) as 1.24 m 3 . As this shows that the amount of erosion is measurable using close range techniques; the amount and rate of erosion could be monitored to predict dike collapse in emergency situation. The results confirm the feasibility of the proposed methodology, providing scalability to a comprehensive analysis over a large extension of a dike (tens of meters).

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The Wave Run-Up Simulator, Theory and First Pilot Test

Cited by 11 publications

References 21 publications

Comparing overflow and wave-overtopping induced breach initiation mechanisms in an embankment breach experiment

Comparing overflow and wave-overtopping induced breach initiation mechanisms in an embankment breach experiment

Sensitivity analysis of erosion on the landward slope of an earthen flood defence submitted to wave overtoppings

Morphological Changes Along a Dike Landside Slope Sampled by 4d High Resolution Terrestrial Laser Scanning

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