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Behaviour of batter anchor piles in marine clay subjected to vertical pull out
S. Narasimha Rao
Published in Int Soc of Offshore and Polar Engineerns (ISOPE), Golden, CO, United States
Volume: 1
Pages: 514 - 519
In this paper, the vertical pullout behaviour of batter piles has been brought out. Batter anchor is an inclined pile subjected to vertical uplift force. An experimental work was carried out to study the behaviour of batter anchors using model aluminum pipe piles of 19 mm diameter embedded in soft marine clay bed prepared at different consistencies. Tests were conducted on piles with batter angles of 00, 10°, 20° and 300. Further the effect of length of embedment on the uplift capacities of batter anchors was brought out. These experimental investigations were carried out in a test tank of size, 1300 mm×800 mm×1100 mm. The experimental results indicate that the upward moments in batter anchor are more than the corresponding movements in vertical anchors. The ultimate uplift capacity of batter anchor is found to be less than the vertical anchor. This reduction in capacity is mainly due to the separation of the anchor from the soil at the bottom surface of the anchor which affects skin friction.
About the journal
JournalProceedings of the International Offshore and Polar Engineering Conference
PublisherInt Soc of Offshore and Polar Engineerns (ISOPE), Golden, CO, United States
Open AccessNo
Concepts (11)
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    Bearing capacity
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    Model structures
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    Soil structure interactions
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    Structural analysis
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    Underwater soils
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    Embedment ratio
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    Pile foundations