Simulation-based optimal design approach for rockfall protection walls

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study presents a new design approach which can optimize position and size of a rockfall protection wall with the help of a numerical simulation. In the proposed framework, sufficient numbers of rockfall paths with information of kinematic energy are accumulated by rockfall simulation. A protection wall is then virtually overlapped on the simulated results, and values of a safety function are checked under the different combinations of design parameters. A response surface of the safety function is then approximately constructed, and a cost function is defined to express the penalty in unreasonable situation. Once the two functions are obtained, an optimization problem can be formulated. In order to demonstrate the capability of the proposed optimal design approach, a numerical example is presented in this study. The obtained result indicates that the proposed framework has the possibility of developing optimal design of rockfall protection walls.

Original languageEnglish
Title of host publicationRock Dynamics Summit - Proceedings of the 2019 Rock Dynamics Summit, RDS 2019
EditorsOmer Aydan, Takashi Ito, Takafumi Seiki, Katsumi Kamemura, Naoki Iwata
PublisherCRC Press/Balkema
Pages481-485
Number of pages5
ISBN (Print)9780367347833
DOIs
Publication statusPublished - 2019
EventRock Dynamics Summit, RDS 2019 - Okinawa, Japan
Duration: 2019 May 72019 May 11

Publication series

NameRock Dynamics Summit - Proceedings of the 2019 Rock Dynamics Summit, RDS 2019

Conference

ConferenceRock Dynamics Summit, RDS 2019
CountryJapan
CityOkinawa
Period19/5/719/5/11

ASJC Scopus subject areas

  • Geology

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