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Geotechnics of Fixed Offshore Drilling Platforms
Fixed offshore-structures are widely used for exploration and exploitation of undersea oil and gas resources. The object of this report is to survey the general geotechnical design principles and foundation technics of fixed offshore-structures. Additionally, it is attempted to give an overall view of such environmental conditions which have influence on the geotechnical design. Because of the many types of structures surveyed and variations in environmental conditions, detailed design methods are given only in a few cases. This report deals with pile-supported jacket platforms, jack-up-platforms on mat or on separate footings, concrete gravity platforms and man-made islands. The main emphasis has been laid on pile-supported jacket-structures and gravity structures. Different pile types and installation methods used in jacket-structures are presented. Common pile design principles have been surveyed. Load-displacement-relationships used in design of laterally loaded piles have been discussed in detail both for static and cyclic loads. Geotechnical problems in installation of gravity structures have been discussed widely. The principles of a simple method used for stability calculations have been shown. Also a simple graphic method for establishing the deformation properties of soil in storm loading is shown. (ERA citation 11:026025)
Geotechnics of Fixed Offshore Drilling Platforms
Fixed offshore-structures are widely used for exploration and exploitation of undersea oil and gas resources. The object of this report is to survey the general geotechnical design principles and foundation technics of fixed offshore-structures. Additionally, it is attempted to give an overall view of such environmental conditions which have influence on the geotechnical design. Because of the many types of structures surveyed and variations in environmental conditions, detailed design methods are given only in a few cases. This report deals with pile-supported jacket platforms, jack-up-platforms on mat or on separate footings, concrete gravity platforms and man-made islands. The main emphasis has been laid on pile-supported jacket-structures and gravity structures. Different pile types and installation methods used in jacket-structures are presented. Common pile design principles have been surveyed. Load-displacement-relationships used in design of laterally loaded piles have been discussed in detail both for static and cyclic loads. Geotechnical problems in installation of gravity structures have been discussed widely. The principles of a simple method used for stability calculations have been shown. Also a simple graphic method for establishing the deformation properties of soil in storm loading is shown. (ERA citation 11:026025)
Geotechnics of Fixed Offshore Drilling Platforms
J. Toernqvist (author)
1984
171 pages
Report
No indication
English
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