Results 211 to 220 of about 1,629 (265)

Offshore Structure Foundations

1991
Marine foundations are used to transmit structural design loadings to the subsoil. The type of foundation element to be employed will depend on (1) the nature of loading, (2) the stiffness and strength of the surface sediments, and (3) the desires of the builder. A summary of the common platform types is shown in Figure 18.1.
Ronald C. Chaney, Kenneth R. Demars
openaire   +1 more source

Foundation shakedown of offshore platforms

Computers and Geotechnics, 1990
Abstract The dynamic shakedown load factor is determined for a saturated porous soil using a piecewise linearized convex yield surface. The formulation is based on Biot's equations of motion. The numerical procedure is based on coupling of the finite element method with linear programming.
A.K Haldar, D.V Reddy, M Arockiasamy
openaire   +1 more source

Foundation Engineering of Offshore "Jacket" Structures

Contemporary Topics in Deep Foundations, 2009
Jackets are marine structures commonly utilized in civil — offshore construction practice. Foundation engineering of jackets requires exceptional design and construction skills to cope with adverse geotechnical conditions and extreme operational and environmental loads. A synopsis of deep foundation design and practice employed in jacket engineering is
Ioannis Chatzigiannelis, Khaled Elsayed, Kostas Loukakis   +2 more
openaire   +1 more source

Scour-monitoring techniques for offshore foundations

Smart Structures and Systems, 2015
The scour induced by strong currents and wave action decreases the embedded length of monopiles and leads to a decrease of their structural stability. The objective of this study is the development and consideration of scour-monitoring techniques for offshore monopile foundations.
Yong-Hoon Byuna, Kiwon Parkb, Jong-Sub Lee   +2 more
openaire   +1 more source

Random Sea and Reliability of Offshore Foundations

Journal of the Engineering Mechanics Division, 1981
A probabilistic model is developed for the long-term representation of sea state and for the degradation of offshore foundations. Parameters of the sea state model are: (1)The mean arrival rate of storms with soil degradation potential; (2)the joint probability distribution of storm duration and average intensity; and (3)the random process that ...
Demosthenes C. Angelides, S. Shyam Sunder, Daniele Veneziano   +2 more
openaire   +1 more source

Analysis of Gravity Offshore Structure Foundations

Journal of Petroleum Technology, 1980
This paper shows that the interaction of an offshore structure with its soil foundation when subjected to complicated wave loading paths can be analyzed in a rigorous manner by taking into account the real three-dimensional, nonlinear, anisotropic, elastoplastic, path-dependent, stress-strain-strength properties of the material.
Jean H. Prevost, Thomas J.R. Hughes, Martin F. Cohen   +2 more
openaire   +1 more source

Concrete is the Future for Offshore Foundations

Wind Engineering, 2005
This paper compares the costs of using concrete foundations against steel monopile foundations for offshore wind turbines, and argues that concrete foundations will be cheaper. Most offshore windfarms have steel monopile foundations, but in Denmark concrete gravity foundations have been used with success. Two projects have tendered for steel monopiles
openaire   +1 more source

Caisson Foundation Design for Offshore Anchorage

Advanced Materials Research, 2011
The cross-sea suspension bridge is one of the most important development branches of long-span Bridge. The anchorage construction on the sea is a key issue of cross-sea suspension bridge. This paper introduces a new kind of caisson foundation of offshore anchorage. This new design may reduce the construction cost and speed the process of working.
Qian Wang, Yong Gang Tan, Tie Suo Geng
openaire   +1 more source

Laying the foundations of offshore wind

Engineering & Technology, 2012
The development of offshore wind power has become a pressing modern energy issue and the UK is taking a major role, with a significant deployment of turbines in UK waters. Two rounds of UK deployment have resulted in about 1,800MW installed capacity. Round three is just beginning, with the first site in the Moray Firth, where a 1,500MW offshore wind ...
openaire   +1 more source

Offshore Foundation Based on the ELiSE Method

2015
Within the framework of the BIONA-project “Offshore Foundation based on ELiSE procedure” (OFE), we developed a weight-minimized steel foundation for offshore wind energy power plants. These foundations are almost 50 m high and have to cope with very strong forces and moments which arise due to gravity and wind as well as currents and waves.
christian Hamm, Daniel Siegel, Nils Niebuhr, Piotr Jurkojc, Rene von der Hellen   +4 more
openaire   +1 more source