Project

Back to overview

HYDRO-DYNAMIC IMPACT OF BORE WAVES ON STRUCTURES

English title HYDRO-DYNAMIC IMPACT OF BORE WAVES ON STRUCTURES
Applicant Schleiss Anton
Number 149112
Funding scheme Project funding (Div. I-III)
Research institution Plateforme de constructions hydrauliques EPFL ENAC IIC PL-LCH
Institution of higher education EPF Lausanne - EPFL
Main discipline Civil Engineering
Start/End 01.01.2014 - 31.12.2017
Approved amount 286'371.00
Show all

Keywords (6)

Bore wave; Safety; Hydro-dynamic impact; Structural resistance; Force; Impulse wave

Lay Summary (German)

Lead
Tsunamis erzeugen katastrophale Schäden an Leib und Gut in betroffenen Küstenregionen. Dabei sind nicht nur Todesfälle von Personen in Gebäuden zu beklagen, welche aufgrund des Welleneinschlages kollabieren, sondern auch Todesfälle als Konsequenz später oder ungenügender Hilfeleistung mangels intakter Infrastruktur. Das Forschungsprojekt setzt beim Zusammenhang von Welleneinschlag und der Antwort der Infrastruktur an. Welche Gebäude-Typen sind eher resistent, und welche neigen zum Kollaps?
Lay summary

Nach jedem grösseren Tsunmai sind Fotos derauflaufenden Küstenwelle in der Presse abgedruckt, welche zusammen mit Treibholzauf Gebäude trifft. Diese brechen infolge der hydrodynamischen Last nichtselten zusammen.

Mittels Labortest an abstrahierten Gebäuden (z.B.Spitälern) werden die hydro-dynamischen Kräfte und Momente gemessen, welche dieWellenfront und das nachströmende Wasser erzeugen. Dabei sollen die massgebendenParameter wie Gebäude-Geometrie, dessen Durchlässigkeit, die Treibholzfracht,und die Wellencharakteristik systematisch variiert werden. Als Resultat kannabgeleitet werden, welcher Gebäudetyp tendenziell geringen Kräften ausgesetzt wird,und entsprechend eine erhöhte Wahrscheinlichkeit aufweist, nicht zerstört zuwerden. Zudem sind daraus erste Regeln abzuleiten, wie Gebäude konstruktiv auszubildensind, damit sie bei Wellenaufschlag eher stehen bleiben.
Direct link to Lay Summary Last update: 07.01.2014

Responsible applicant and co-applicants

Employees

Publications

Publication
Experimental study of tsunami‐like waves on dry ad wet bed generated with a vertical release technique
Wüthrich D., Pfister M., Nistor I., Schleiss A.J. (2017), Experimental study of tsunami‐like waves on dry ad wet bed generated with a vertical release technique, in Journal of Waterways, Port, Coastal and Ocean Engineering .
Example of wave impact on a residential house
Wüthrich D., Pfister M., Schleiss A.J. (2016), Example of wave impact on a residential house, in Sustainable Hydraulics in the Era of Global Change, LiegeTaylor & Francis Group, London.
Experimental generation of tsunami‐like waves
Wüthrich D., Nistor I., Pfister M., Schleiss A.J. (2015), Experimental generation of tsunami‐like waves, in Coastal Structures and Solutions to Coastal Disasters 2015, Boston, MA, USAASCE, Boston, MA, USA.

Collaboration

Group / person Country
Types of collaboration
Prof. Dr. Hermann Fritz, Georgia Tech USA United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Prof. Dr. Willi H. Hager, ETH Zurich Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
Dr. Valentin Heller, Imperial College London Great Britain and Northern Ireland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Exchange of personnel
Prof. Ioan Nistor, University of Ottawa, Canada Canada (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
37th IAHR World Congress Talk given at a conference Estimation of wave propagation velocity on a channel with smooth and rough bed 13.08.2017 Kuala Lumpur, Malaysia Schleiss Anton; Wüthrich Davide;
37th IAHR World Congress Talk given at a conference Impact of a dry bed surge against structures with and without openings 13.08.2017 Kuala Lumpur, Malaysia Wüthrich Davide;
4th IAHR Europe Congress Talk given at a conference Example of wave impact on a residential house 27.07.2016 Liège, Belgium Wüthrich Davide;
6th International Conference on the Application of Physical Modelling in Coastal and Port Engineering and Science (Coastlab16) Talk given at a conference Surface Turbulence on Bores and Surges propagating on Smooth and Rough Beds 09.05.2016 Ottawa, Canada Wüthrich Davide;
Coastal Structures Conference Talk given at a conference Experimental generation of tsunami‐like waves 09.09.2015 Boston, MA, United States of America Wüthrich Davide;


Communication with the public

Communication Title Media Place Year
Media relations: radio, television Talsperren, die unterschätzte Gefahr ZDF - PlaneteE International 2017
Video/Film EPFL Final “Ma Thèse 180s” Western Switzerland 2016

Associated projects

Number Title Start Funding scheme
150787 ACQUISITION OF FLOW VELOCITY MEASURING INSTRUMENTATION / ACOUSTIC DOPPLER AND LASER DOPPLER VELOCIMETRY 01.10.2014 R'EQUIP
181794 Air-water flow properties of transient surges and bores 01.01.2019 Early Postdoc.Mobility

Abstract

The proposed interdisciplinary research project intents to provide a basis to analyze the damage potential of buildings hit by bore-type waves. The project proposes to generate typical bore-type waves in a physical model, which impinge on various types of structures, as buildings. The wave impact on these structures is determined in terms of force and momentum over time, the wave parameters, and the building core geometry. A comparison of the hydrodynamic impact on several structures indicates which type is subjected to extensive forces and which one not. This allows identifying which types of buildings are less vulnerable under wave impact. As a result, a classification of buildings related to their collapse risk and recommendations for a safe construction follow.
-