Comparison of Numerical Analyses with a Static Load Test of a Continuous Flight Auger Pile

Holko, Michal; Stacho, Jakub

doi:10.2478/sjce-2014-0017

Cited by 2 publications

(1 citation statement)

References 18 publications

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“…The load capacity of piles in the field has been studied by numerous authors: Mangushev R.A., Osokin A.I., Tatarinov S.V., Samokhvalov М.A., Pronozin Ya.A. [1][2][3][4][5][6][7] and many others.…”

Section: Methods Of Field Testsmentioning

confidence: 99%

Analysis of Bored Piles' Field Test Results

Kondratieva

Konyushkov

Trong

et al. 2019

KEM

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The purpose of the study is to establish accuracy of determining the load-bearing capacity of bored piles according to the method specified in Regulations 24.13330.2011 "Pile foundations". Relevance of the topic is determined by the following: the load-bearing capacity of a pile is a fundamental indicator affecting all subsequent activities related to foundation design, and accuracy of analytical solutions for complex engineering and geological conditions is highly questionable. Field tests of bored piles were carried out in engineering and geological conditions of Saint Petersburg with deformation modulus from 10 to 40 MPa at a load in the range from 1,000 to 6,300 kN, at achievement of absolute settlement of 40 mm. Piles with a diameter from 0.15 to 0.88 m and a length from 10 to 47 m were made using various technologies: using casing, using slurry, using a flight auger. Following the results of field tests, diagrams of load-bearing capacity of piles according to the material, depending on geometrical parameters and manufacturing techniques, diagrams of actual and designed load-bearing capacity of piles were plotted. Approximating functions to describe the dependences were obtained. According to the analysis of the results, it is possible to conclude that the load-bearing capacity of the bored pile during field tests is 1.4–1.7 times higher than the load-bearing capacity of the pile designed according to Regulations 24.13330.2011; the average share of the load-bearing capacity along the side surface of the pile was 65% and under the pile toe — 35%.

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Section: Methods Of Field Testsmentioning

confidence: 99%

Analysis of Bored Piles' Field Test Results

Kondratieva

Konyushkov

Trong

et al. 2019

KEM

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show abstract

Simulation of bearing capacity of bored piles

Majeed

Haider

2018

MATEC Web Conf.

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This study focuses on how one can possibly predict the ultimate load for the piles that did not reach failure. This challenge was acquired through Chin- Konder method by which, the estimated settlement that correspond to failure load is well defined. Hence, this research aims to make a comparative study between the results of pile load tests carried out in Al-Basrah sewage treatment plant project, and those results induced from the numerical analysis in term of ultimate pile capacity. Consequently, it may give a clear idea on the ability of numerical simulation in getting close to the actual behavior of piles. In the current study, a numerical study using Plaxis 3D Foundation program has been performed on bored piles by the assistance of site investigations of soil. Mohr- Coulomb and linear elastic models were adopted in the simulation for soil and pile respectively. Ten bored piles were used in this analysis under different values of loading. The diameter and length of pile are 0.6m and 24m respectively. The test results indicate that, an excellent agreement has been found as a response of pile capacity between the field and numerical studies. Also, ideal load- settlement curves were created using Chin- Konder method to predict the failure load of bored piles. Also, the results have demonstrated that, the pile capacity obtained from the simulation process is larger about 51% than that design load estimated before the design of piles. This may present a priority to use the finite element method to be accounted as an effective approach in the primary analysis.

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Comparison of Numerical Analyses with a Static Load Test of a Continuous Flight Auger Pile

Cited by 2 publications

References 18 publications

Analysis of Bored Piles' Field Test Results

Analysis of Bored Piles' Field Test Results

Simulation of bearing capacity of bored piles

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