Introduction to research university projects

Disaster prevention:

up-to-date engineering methods

Prof. János Józsa

Head, Department of Hydraulic and Water Resources Engineering

Vice-Dean for Science, Faculty of Civil Engineering

Cooperation Platform of Central and East European

Metropolitan Universities of Technology Meeting

Budapest, June 12-13, 2014

Outline of Research Framework 6

Four main themes

Flooding

Earthquake impacts

Disastrous environmental pollution

Industrial security, fire and explosion

All relevant in disaster prevention and management,

with a lot of links to each other

Some relevant past and ongoing research projects

Rivers and floodplains

Natural conditions

Floods leading to disaster

Man-made damming

SajókeresztúrSajókeresztúr

SajóSajó

SzirmabesenyőSzirmabesenyő

Flood-induced rural and urban inundation

MISKOLC

Flood-induced rural and urban inundation

Modelled inundation for disaster prevention planning

What if a thousand years return period

flood wave arrives in River Danube at Budapest

Industrial disastrous floods and their impact

Red mud spill in Hungary in 2010

Computer simulated spill and inundation process

Computer simulated spill and inundation process

Impact assessment of various prevention measures

Soil mechanics aspects of earth dam construction:

Pore water changes in the construction and operation period

Lab and computer simulated drift of solid bodies by floodwaves

Impact of dam break flood waves on buildings

investigated in lab by PTV analysis

Downstream environmental impact of the red mud spill

Downstream environmental impact of the red mud spill

Height: 48 m, cross-section: steel box(~2 x 3 m) Span (arch) : 307.8 mTotal length: 1780 m

Bridges to resist earthquakes

Pentele bridge over Danube in Hungary

Pylon height: 100 mSpan (cable-stayed bridge) : 300 m

Total length: 1862 m

Bridges to resist earthquakes

Megyeri bridge over Danube in Hungary

A modal shape analysis for earthquake resistant design

Finite element modelANSYS, explicit dynamic analysisharmonization of the parameters of FE model and real aircraftsimplified aircraft geometry for parametric studiestarget structure: circular shellaim: determination of important input parametersbroken elements are deleted from the calculation

Full-scale test:Sugano et al. 1993, New-MexicoF4-Phantom fightervelocity: 215 m/s7×7×3.66 m reinforced concrete blockaircraft was totally crushed (debris dispersed)penetration did not occur (concrete cover was damaged) aircraft crushed only at the cross-section adjacent to the target

Full-scale impact test

Target damage

Last example: Aircraft crash into NPP containment wall

HORIZON2020 outlook

Two relevant submitted applications:

PFM-WATER – Monitoring of Particle-laden

Fluxes for more efficient use of Water

21 partners from all over Europe, leading

by Bologna

DREAM-CO – Danube River Research and

Management Coordination Action

34 partners, leading by BOKU, Vienna