Experimental studies on differences of penetration between modified suction caisson and regular suction caisson in clay

Li, Dayong; Ma, Shili; Zhang, Yukun; Chen, Fuquan

doi:10.1080/17445302.2019.1710061

Cited by 6 publications

(1 citation statement)

References 18 publications

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“…For instance, the multi-pod foundation is suitable for water depths of 30-50 m, but it is difficult to transport and too complicated to install; the jacket foundation is suitable for water depths between 30-60 m, but it has a long manufacturing and installation cycle as well as a high cost that decreases rapidly with the deepening of water depth; the floating foundation is suitable for water depths above 50 m, but it is challenging to design and has the potential to tilt, shake, and overturn. The suction bucket in particular (Figure 1) is a novel deep-sea foundation suitable for water depths above 30 m [6][7][8][9][10]. Compared with the above foundation types, it has the advantages of convenient installation, lower cost, and recyclability.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity Analysis of Factors Affecting the Bearing Capacity of Suction Bucket Foundation in Soft Clay

Wang

Yuan

et al. 2022

Sustainability

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A suction bucket is the foundation for the development of offshore wind power technology in the deep sea, and its stability is crucial to the superstructure of the wind power generation system. Combined with soft clay soil strata along the Chinese coast, the bearing capacity of suction bucket foundations was studied using a numerical model. Sensitivity factors such as soil strength with random space distribution, dimensions of foundation, wind and wave loads in different directions, and cycle times were considered. The results show that the normalized foundation bearing capacity coefficient increases with the increase of the foundation length–diameter ratio. When the foundation length–diameter ratio is less than 1.0, the foundation bearing capacity coefficient is more sensitive to the soil non-uniformity coefficient than the length–diameter ratio. When the length–diameter ratio of the suction bucket is large enough, the influence of the soil non-uniformity coefficient on the bearing capacity of the suction bucket foundation gradually diminishes. When the direction of wind and wave loads is 15°, the bearing capacity of the suction bucket foundation is the weakest. Under the cyclic loads, the shallow soil strength weakens faster in the initial stage and the attenuation rate of soil strength slows down in the latter stage.

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Section: Introductionmentioning

confidence: 99%