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논문 기본 정보

자료유형
학술저널
저자정보
Zhang, Wengang (National Joint Engineering Research Center of Geohazards Prevention in the Reservoir Areas, Chongqing University) Zhang, Runhong (School of Civil Engineering, Chongqing University) Fu, Yinrong (School of Civil Engineering, Chongqing University) Goh, A.T.C. (School of Civil and Environmental Engineering, Nanyang Technological University) Zhang, Fan (IIIBIT-Sydney, Federation University)
저널정보
테크노프레스 Geomechanics & engineering Geomechanics & engineering 제15권 제4호
발행연도
2018.1
수록면
965 - 972 (8page)

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초록· 키워드

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In deep braced excavations, struts and walers play an essential role in the whole supporting system. For multi-level strut systems, accidental strut failure is possible. Once a single strut fails, it is possible for the loads carried from the previous failed strut to be transferred to the adjacent struts and therefore cause one or more struts to fail. Consequently, progressive collapse may occur and cause the whole excavation system to fail. One of the reasons for the Nicoll Highway Collapse was attributed to the failure of the struts and walers. Consequently, for the design of braced excavation systems in Singapore, one of the requirements by the building authorities is to perform one-strut failure analyses, in order to ensure that there is no progressive collapse when one strut was damaged due to a construction accident. Therefore, plane strain 2D and three-dimensional (3D) finite element analyses of one-strut failure of the braced excavation system were carried out in this study to investigate the effects of one-strut failure on the adjacent struts.

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