Numerische Untersuchungen zur Definition von Kastenfangedämmen

Numerical investigations for the definition of box-type cofferdams. Cofferdams in cell and box form serve as temporary structures for enclosing large excavation pits or as permanent structures for bank reinforcements and breakwaters. Box cofferdams consist of two mutually anchored and parallel sheet pile walls, with fill material in between. Box cofferdams are often subjected to unilateral loads and are designed to withstand large horizontal forces such as water pressures, impact loads, or earth pressures. The recommendations of the Working Committee on Bank Reinforcements [1] provide guidelines for the design of cofferdams, primarily based on the studies by [2]. In the stability verification of box cofferdams, according to [1], it is assumed that a compact soil block exists between the opposing cofferdam walls. However, [1] does not explicitly define when two opposing walls are considered a box cofferdam structure. To define the applicability ranges for box cofferdams, extensive numerical investigations in the serviceability state were carried out for this article.

Subjects

cofferdams

earth pressure increase

FEM

DDC Class

624.15: Geotechnical Engineering

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Numerische Untersuchungen zur Definition von Kastenfangedämmen