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Bearing Capacity of Piles in Soft Clay Underlaid by Cohesive Frictional Soil

Chakraborty, Debarghya / Kumar, Jyant

Abstract

By using the axisymmetric quasi-lower bound finite-element limit analysis, the bearing capacity factors $N_{c}^{p}$ and $N_{γ q}^{p}$ have been computed for axially loaded piles, with the shaft embedded in a fully cohesive soil medium and the tip placed over cohesive frictional soil strata. The results were obtained for various combinations of $L / D$ , $ϕ_{l}$ , and $c_{l} / c_{u}$ ; the subscripts $l$ and $u$ refer to lower and upper soil strata, respectively. The factors $N_{c}^{p}$ and $N_{γ q}^{p}$ increase continuously with increases in $L / D$ and $ϕ_{l}$ ; the rate of increase of $N_{c}^{p}$ and $N_{γ q}^{p}$ with $L / D$ , however, decreases with an increase in $L / D$ . For $c_{l} / c_{u} > 100$ , the factor $N_{c}^{p}$ hardly depends on $L / D$ .

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Bearing Capacity of Piles in Soft Clay Underlaid by Cohesive Frictional Soil

Chakraborty, Debarghya / Kumar, Jyant

Abstract

By using the axisymmetric quasi-lower bound finite-element limit analysis, the bearing capacity factors $N_{c}^{p}$ and $N_{γ q}^{p}$ have been computed for axially loaded piles, with the shaft embedded in a fully cohesive soil medium and the tip placed over cohesive frictional soil strata. The results were obtained for various combinations of $L / D$ , $ϕ_{l}$ , and $c_{l} / c_{u}$ ; the subscripts $l$ and $u$ refer to lower and upper soil strata, respectively. The factors $N_{c}^{p}$ and $N_{γ q}^{p}$ increase continuously with increases in $L / D$ and $ϕ_{l}$ ; the rate of increase of $N_{c}^{p}$ and $N_{γ q}^{p}$ with $L / D$ , however, decreases with an increase in $L / D$ . For $c_{l} / c_{u} > 100$ , the factor $N_{c}^{p}$ hardly depends on $L / D$ .

Bearing Capacity of Piles in Soft Clay Underlaid by Cohesive Frictional Soil

Chakraborty, Debarghya / Kumar, Jyant

Abstract

By using the axisymmetric quasi-lower bound finite-element limit analysis, the bearing capacity factors $N_{c}^{p}$ and $N_{γ q}^{p}$ have been computed for axially loaded piles, with the shaft embedded in a fully cohesive soil medium and the tip placed over cohesive frictional soil strata. The results were obtained for various combinations of $L / D$ , $ϕ_{l}$ , and $c_{l} / c_{u}$ ; the subscripts $l$ and $u$ refer to lower and upper soil strata, respectively. The factors $N_{c}^{p}$ and $N_{γ q}^{p}$ increase continuously with increases in $L / D$ and $ϕ_{l}$ ; the rate of increase of $N_{c}^{p}$ and $N_{γ q}^{p}$ with $L / D$ , however, decreases with an increase in $L / D$ . For $c_{l} / c_{u} > 100$ , the factor $N_{c}^{p}$ hardly depends on $L / D$ .

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Title:

Bearing Capacity of Piles in Soft Clay Underlaid by Cohesive Frictional Soil

Contributors:

Chakraborty, Debarghya (author) / Kumar, Jyant (author)

Published in:

International Journal of Geomechanics ; 13 ; 311-317

Publication date:

2012-02-02

Size:

72013-01-01 pages

ISSN:

1532-3641 , 1943-5622

DOI:

https://doi.org/10.1061/(ASCE)GM.1943-5622.0000211

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

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