Practical applications of DDA to disaster prevention

Guangqi Chen, L. Zheng, Y. Zhang

Research output: Contribution to conferencePaper

4 Citations (Scopus)

Abstract

Some of practical applications of DDA to disaster prevention in Kyushu University are introduced. The first application is to analyze stability of breakwater by considering tsunami induced see page. A local piping mode and global failure mode are clarified by DDA simulations. The second application is to analyze stability and simulate cave-in phenomenon for sand beach. An approach of using DDA to continuous material like sand ground is proposed by generating proper artificial mesh. The bearing capacity and arch function are clarified for the sand ground with a cave. The cave-in phenomenon is reshown by DDA simulations. The third application is to clarify the mechanism of extreme earthquake wave based on so-called trampoline effect and ping-pong model. The extreme waveform with a PGA of more than 4000 gal recorded in Japan is reshown by DDA simulation. These applications will play an important role in disaster prevention in future.

Original languageEnglish
Pages15-28
Number of pages14
Publication statusPublished - Oct 1 2013
Event11th International Conference on Analysis of Discontinuous Deformation, ICADD 2013 - Fukuoka, Japan
Duration: Aug 27 2013Aug 29 2013

Other

Other11th International Conference on Analysis of Discontinuous Deformation, ICADD 2013
CountryJapan
CityFukuoka
Period8/27/138/29/13

Fingerprint

Digital differential analyzers
Disaster prevention
Disaster
Caves
Sand
Extremes
Tsunami
Simulation
Tsunamis
Breakwaters
Arch
Failure Mode
Arches
Beaches
Bearing capacity
Earthquake
Japan
Waveform
Failure modes
Earthquakes

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation

Cite this

Chen, G., Zheng, L., & Zhang, Y. (2013). Practical applications of DDA to disaster prevention. 15-28. Paper presented at 11th International Conference on Analysis of Discontinuous Deformation, ICADD 2013, Fukuoka, Japan.

Practical applications of DDA to disaster prevention. / Chen, Guangqi; Zheng, L.; Zhang, Y.

2013. 15-28 Paper presented at 11th International Conference on Analysis of Discontinuous Deformation, ICADD 2013, Fukuoka, Japan.

Research output: Contribution to conferencePaper

Chen, G, Zheng, L & Zhang, Y 2013, 'Practical applications of DDA to disaster prevention' Paper presented at 11th International Conference on Analysis of Discontinuous Deformation, ICADD 2013, Fukuoka, Japan, 8/27/13 - 8/29/13, pp. 15-28.
Chen G, Zheng L, Zhang Y. Practical applications of DDA to disaster prevention. 2013. Paper presented at 11th International Conference on Analysis of Discontinuous Deformation, ICADD 2013, Fukuoka, Japan.
Chen, Guangqi ; Zheng, L. ; Zhang, Y. / Practical applications of DDA to disaster prevention. Paper presented at 11th International Conference on Analysis of Discontinuous Deformation, ICADD 2013, Fukuoka, Japan.14 p.
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