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Analysis of Axial Pile Load Test(s) on Large Bored Grouted and Instrumented Piles

Article

Last updated: 05 Jan 2025

Subjects

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Tags

Pile Load Tests
Instrumented Piles
Grouted Piles
Large Bored
Axial Capacity
Analysis of Axial Pile Load Test(s) on Large Bored Grouted and Instrumented Piles
ICASGE'23

Abstract

Large capacity piles are important type of foundation elements that are needed in case of high column loads such as in tall buildings with large span between columns. In many projects, especially if the de-signer uses one pile supporting one columnconcept (Hamza, 2003). The axial capacity of the large bored piles can be further increased by grouting the shaft skin and the base of the pile. The increase in the ca-pacity of the piles due to grouting can be tremendous and can reach to as high as almost twice the capaci-ty of non-grouted piles. A data base of pile load tests of instrumented grouted piles is under development in a major study aiming to propose a simple method to estimate the axial capacity of large bored grouted piles. The data base include pile load tests from projects constructed in Egypt and abroad. The main goal of this paper is to analyze pile load test(s) from one project. The instrumentation of the tested piles al-lowed for the separation of skin friction base contribution to the axial load. Further, the contribution of the skin friction of every layer along the pile shaft could be identified. The results of the analysis clarified how base and shaft grouting increased the axial capacity of the pile and decreased the settlements for cer-tain load level compared to conventional un-grouted piles installed under similar conditions.

Keywords

Pile Load Tests, Instrumented Piles, Grouted Piles, Large Bored, Axial Capacity

Authors

First Name

M.

Last Name

Shahien and H. M. El-Naggar

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Orcid

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Volume

ICASGE2015

Issue Date

1 Jan 2015

Publish Date

29 May 2022

Link

https://icasge.conferences.ekb.eg/article_1427.html

Order

156

Publication Type

Conference

Publication Title

ICASGE'23

Publication Link

https://icasge.conferences.ekb.eg/

Details

Type

Article

Locale

en

Created At

13 Dec 2022