Monotonic laterally loaded pile testing in a stiff glacial clay till at Cowden

被引：86

作者：

Byrne, Byron W. ^{[1
]}

McAdam, Ross A. ^{[1
]}

Burd, Harvey J. ^{[1
]}

Beuckelaers, William J. A. P. ^{[1
,2
]}

Gavin, Kenneth G. ^{[3
]}

Houlsby, Guy T. ^{[1
]}

Igoe, David J. P. ^{[3
,4
]}

Jardine, Richard J. ^{[5
]}

Martin, Christopher M. ^{[1
]}

Wood, Alastair Muir ^{[6
,7
]}

Potts, David M. ^{[5
]}

Gretlund, Jesper Skov ^{[8
]}

Taborda, David M. G. ^{[5
]}

Zdravkovic, Lidija ^{[5
]}

机构：

[1] Univ Oxford, Dept Engn Sci, Oxford, England

[2] Jan De Nul Grp, Aalst, Belgium

[3] Univ Coll Dublin, Sch Civil Engn, Dublin, Ireland

[4] Trinity Coll Dublin, Dublin, Ireland

[5] Imperial Coll London, Dept Civil & Environm Engn, London, England

[6] Wood Thilsted Partners, London, England

[7] Orsted Wind Power, London, England

[8] Orsted Wind Power, Copenhagen, Denmark

来源：

GEOTECHNIQUE | 2020年 / 70卷 / 11期

关键词：

full-scale tests; model tests; offshore engineering; piles & piling; soil/structure interaction;

D O I：

10.1680/jgeot.18.PISA.003

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

This paper describes the results obtained from a field testing campaign on laterally loaded monopiles conducted at Cowden, UK, where the soil consists principally of a heavily overconsolidated glacial till. These tests formed part of the PISA project on the development of improved design methods for monopile foundations for offshore wind turbines. Results obtained for monotonic loading tests on piles of three different diameters (0.273 m, 0.762 m and 2.0 m) are presented. The piles had length-to--diameter ratios (L/D) of between 3 and 10. The tests included the application of monotonic loading incorporating periods of constant load to investigate creep effects, and investigations on the influence of loading rate. Data are presented on measured bending moments and inclinations induced in the piles. Inferred data on lateral displacements of the embedded section of the piles are determined using an optimised structural model. These field data support the development of a new one-dimensional modelling approach for the design of monopile foundations for offshore wind turbines. They also form a unique database of field measurements in an overconsolidated clay, from lateral loading of piles at a vertical distance above the ground surface.

引用

页码：970 / 985

页数：16

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