Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sheet Pile Interlocks and Ring Beam Installation Effects on the Performance of Urban Cofferdams
Urban cofferdams are made of steel sheet piles that are structural sections with interlocking systems used to build a continuous wall. These systems are constructed by driving sheet piles, assembling subsequent sheet pile sections, and installing ring beam bracings as the excavation proceeds. The interlock connections between sheet pile sections tend to have a natural slack which leads to additional deflections of the support system. It is only after some deformation that the natural slack of the interlocks and sheet pile-to-steel ring beam connections close their gaps and the bracing system is fully engaged. These features on urban cofferdam behavior are presented parametrically in three-dimensional numerical analyses. Large differences on the computed lateral wall deformations are presented when ignoring these installation effects. Disregarding these pre-excavation construction effects conceal the fundamental reason for the resulting ground deformations in the construction of urban cofferdams and deep excavations.
Sheet Pile Interlocks and Ring Beam Installation Effects on the Performance of Urban Cofferdams
Urban cofferdams are made of steel sheet piles that are structural sections with interlocking systems used to build a continuous wall. These systems are constructed by driving sheet piles, assembling subsequent sheet pile sections, and installing ring beam bracings as the excavation proceeds. The interlock connections between sheet pile sections tend to have a natural slack which leads to additional deflections of the support system. It is only after some deformation that the natural slack of the interlocks and sheet pile-to-steel ring beam connections close their gaps and the bracing system is fully engaged. These features on urban cofferdam behavior are presented parametrically in three-dimensional numerical analyses. Large differences on the computed lateral wall deformations are presented when ignoring these installation effects. Disregarding these pre-excavation construction effects conceal the fundamental reason for the resulting ground deformations in the construction of urban cofferdams and deep excavations.
Sheet Pile Interlocks and Ring Beam Installation Effects on the Performance of Urban Cofferdams
Uribe-Henao, A. Felipe (Autor:in) / Arboleda-Monsalve, Luis G. (Autor:in)
Geotechnical Frontiers 2017 ; 2017 ; Orlando, Florida
Geotechnical Frontiers 2017 ; 170-180
30.03.2017
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Sheet Pile Interlocks and Ring Beam Installation Effects on the Performance of Urban Cofferdams
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