Prediction and Monitoring of Installation of Offshore Foundation Monopiles for Windfarms

2019 ◽  
Author(s):  
Rob Van Dorp ◽  
Nicolas Moscoso ◽  
Marcel Bielefeld ◽  
Gerald Verbeek
Keyword(s):  
Offshore Foundation

scholarly journals Study on Supporting Structure Performance of Deep Soft Soil Foundation Pit near Sea under Waves, Tides, Vibration, and Unbalanced Loads

2020 ◽  
Vol 2020 ◽  
pp. 1-18
Author(s):  
Junsheng Chen ◽  
Chen Lin ◽  
Shuzhuo Liu ◽  
Haihong Mo
Keyword(s):  
Mechanical Performance ◽  
Soft Soil ◽  
Offshore Structure ◽  
Foundation Pit ◽  
Supporting Structure ◽  
Vibration Loads ◽  
Soil Foundation ◽  
Soft Soil Foundation ◽  
Unbalanced Loads ◽  
Offshore Foundation

In addition to the vibration loads caused by offshore structure construction, the offshore foundation pit can also be affected by additional hydraulic loads such as waves, tides, and typhoons, hindering our understanding of the mechanical performance of the foundation pit supporting structure. In order to illuminate this mechanical performance under waves, tides, hammering, and unbalanced loads, this paper analyzed the supporting structure with theoretical and numerical simulations. The results were verified with field monitoring data. Moreover, the influences of loads, including construction vibration loads and unbalanced loads, on structure and soil were discussed. By applying these results to the engineering design, this research could provide a reference for studying mechanical properties of relevant supporting structures and the construction of offshore foundation pits.

Drilling Technologies for Offshore Foundation Engineering

2013 ◽  
Author(s):  
Giovanni Spagnoli ◽  
Leonhard Weixler
Keyword(s):  
New Technology ◽  
Foundation Engineering ◽  
Paper Briefly ◽  
Pile Installation ◽  
Installation Depth ◽  
Offshore Foundation ◽  
Offshore Piles

Offshore piles are normally installed by driving using over-water or underwater hammers. However, there are many situations where pile reaches refusal before the installation depth. This paper briefly describes the current offshore foundation practice, the BAUER technology for onshore pile installation by drilling, the BAUER experiences in the offshore foundation and geotechnical fields and a new technology for supporting offshore pile installation when refusal is prematurely reached by means of the Dive Drill.

A review on the behavior of helical piles as a potential offshore foundation system

2020 ◽  
Vol 38 (9) ◽  
pp. 1013-1036 ◽  
Author(s):  
Giovanni Spagnoli ◽  
Cristina de Hollanda Cavalcanti Tsuha
Keyword(s):  
Helical Piles ◽  
Offshore Foundation
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