A Comparison of Pull-Out Capacity of Suction Anchors in Clay and Sand

Jia Qing Du; Shou Ji Du; Zhi Wang

doi:10.4028/www.scientific.net/AMM.614.613

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 614A Comparison of Pull-Out Capacity of Suction...

A Comparison of Pull-Out Capacity of Suction Anchors in Clay and Sand

Abstract:

With the oil and gas exploitation develop to the deep sea; offshore platform under extreme environment load needs more stable anchorage foundation. Based on the slender suction anchor of SPAR, three-dimensional numerical analysis method was presented to study the ultimate pull-out capacity. Based on the geological conditions from South China Sea, clay and sand was selected as soil conditions to make a comparison analysis. The effects of soil type, load positions, load angles and aspect ratio on the ultimate bearing pull-out resistance of the suction foundation were studied. The comparison analysis results indicated that the ultimate pull-out resistance of suction anchors in sand has a greater rise rate and achieve ultimate pull-out capacity need smaller displacement than in clay; load point and load angles have a great impact on the resistance and there is a critical aspect ratio under inclined loading in sand.

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Periodical:

Applied Mechanics and Materials (Volume 614)

Pages:

613-617

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.614.613

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Online since:

September 2014

Authors:

Jia Qing Du*, Shou Ji Du, Zhi Wang

Keywords:

Clay, Comparison, Numerical Analysis, Pull-Out Capacity, Sand, SPAR, Suction Anchors

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* - Corresponding Author

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