土留め掘削の設計理論と実際(<小特集>施工過程を考慮した地盤の変形・破壊の予測)

概要

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As regards design and construction for braced open cuts, it is one of the important technical subjects to predict ground deformation around the excavation site. This paper describes initially the outline of the typical methods to predict ground deformation which are used in daily design works. Subsequently the centrifuge model tests on double propped wall excavation in soft clay are introduced. In which the importance of the timing of propping to restrain wall movement and adjacent ground deformation, and influence of the amount of the strutting force (i.e., pre-loading) are described. The analysis example concerned the construction site by making use of soil/water coupled FEM based on multidimensional consolidation theory obtained by Biot is introduced to the last, and the possibility as a design tool expected to this analysis method is described.
社団法人地盤工学会の論文
2002-08-01