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Underreamed ground anchors

Bassett, Richard H.

Ground anchors are becoming increasingly important for supporting retaining walls in both cohesive and non-cohesive soils. In cohesive soils the efficiency of an anchor's carrying capacity is improved by forming underreams on the shaft. Empirical formulae for calculating their load capacity have been developed from piling philosophy. The paper examines by controlled laboratory experiments the following features of underreamed anchors: The influence of the spacing of underreams, the influence of the number of underreams and the relationship between the soil stiffness and the anchor tendon stiffness. The observed failure mechanisms show that the format of the empirical formula is justified and values for design constants are suggested.

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Underreamed ground anchors

Bassett, Richard H.

Ground anchors are becoming increasingly important for supporting retaining walls in both cohesive and non-cohesive soils. In cohesive soils the efficiency of an anchor's carrying capacity is improved by forming underreams on the shaft. Empirical formulae for calculating their load capacity have been developed from piling philosophy. The paper examines by controlled laboratory experiments the following features of underreamed anchors: The influence of the spacing of underreams, the influence of the number of underreams and the relationship between the soil stiffness and the anchor tendon stiffness. The observed failure mechanisms show that the format of the empirical formula is justified and values for design constants are suggested.

Underreamed ground anchors

Bassett, Richard H.

Ground anchors are becoming increasingly important for supporting retaining walls in both cohesive and non-cohesive soils. In cohesive soils the efficiency of an anchor's carrying capacity is improved by forming underreams on the shaft. Empirical formulae for calculating their load capacity have been developed from piling philosophy. The paper examines by controlled laboratory experiments the following features of underreamed anchors: The influence of the spacing of underreams, the influence of the number of underreams and the relationship between the soil stiffness and the anchor tendon stiffness. The observed failure mechanisms show that the format of the empirical formula is justified and values for design constants are suggested.

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Title:

Underreamed ground anchors

Contributors:

Bassett, Richard H. (author)

Published in:

Revue Française de Géotechnique ; 11-17

Publication date:

1978-01-01

Size:

7 pages

ISSN:

0181-0529 , 2493-8653

DOI:

https://doi.org/10.1051/geotech/1978003011

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

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