Behavior of Single Rammed Aggregate Piers Considering Installation Effects

Jian Feng Chen; Jie Han; Sadik Oztoprak; Xiao Ming Yang

Behavior of Single Rammed Aggregate Piers Considering Installation Effects

Jian Feng Chen
, Jie Han
, Sadik Oztoprak
, Xiao Ming Yang

Civil Engineering & Construction

Key Laboratory of High Confidence Software Technologies, Ministry of Education, Institute of Software, School of Electronic Engineering and Computer Science, Peking University
University of Kansas
Istanbul University

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

A three-dimensional numerical method was used to simulate cavity expansion during installation and an in situ load test conducted on a single rammed aggregate pier (RAP). Verification of the numerical model was carried out by comparing the computed settlements at top and tip of the pier with the measured values. An un-rammed aggregate pier (UAP) of the same diameter and length was also simulated using the numerical method to demonstrate the effect of installation. Interpretations of the numerical results were focused on the load–settlement behavior, the bulging of the pier, the axial load distributions along the pier, and the stress paths of the soil around the pier. A parametric study was conducted to investigate the influence of the pier length/diameter ratio and the soil properties on the behavior of rammed and un-rammed aggregate piers.

Original language	American English
Pages (from-to)	1191-1199
Number of pages	9
Journal	Computers and Geotechnics
Volume	36
Issue number	7
State	Published - Jun 5 2009

Scopus Subject Areas

Geotechnical Engineering and Engineering Geology
Computer Science Applications

Keywords

Cavity expansion
Load test
Numerical analysis
Rammed aggregate pier

Cite this

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title = "Behavior of Single Rammed Aggregate Piers Considering Installation Effects",

abstract = " A three-dimensional numerical method was used to simulate cavity expansion during installation and an in situ load test conducted on a single rammed aggregate pier (RAP). Verification of the numerical model was carried out by comparing the computed settlements at top and tip of the pier with the measured values. An un-rammed aggregate pier (UAP) of the same diameter and length was also simulated using the numerical method to demonstrate the effect of installation. Interpretations of the numerical results were focused on the load–settlement behavior, the bulging of the pier, the axial load distributions along the pier, and the stress paths of the soil around the pier. A parametric study was conducted to investigate the influence of the pier length/diameter ratio and the soil properties on the behavior of rammed and un-rammed aggregate piers.",

keywords = "Cavity expansion, Load test, Numerical analysis, Rammed aggregate pier",

author = "Chen, \{Jian Feng\} and Jie Han and Sadik Oztoprak and Yang, \{Xiao Ming\}",

year = "2009",

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day = "5",

language = "American English",

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pages = "1191--1199",

journal = "Computers and Geotechnics",

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TY - JOUR

T1 - Behavior of Single Rammed Aggregate Piers Considering Installation Effects

AU - Chen, Jian Feng

AU - Han, Jie

AU - Oztoprak, Sadik

AU - Yang, Xiao Ming

PY - 2009/6/5

Y1 - 2009/6/5

N2 - A three-dimensional numerical method was used to simulate cavity expansion during installation and an in situ load test conducted on a single rammed aggregate pier (RAP). Verification of the numerical model was carried out by comparing the computed settlements at top and tip of the pier with the measured values. An un-rammed aggregate pier (UAP) of the same diameter and length was also simulated using the numerical method to demonstrate the effect of installation. Interpretations of the numerical results were focused on the load–settlement behavior, the bulging of the pier, the axial load distributions along the pier, and the stress paths of the soil around the pier. A parametric study was conducted to investigate the influence of the pier length/diameter ratio and the soil properties on the behavior of rammed and un-rammed aggregate piers.

AB - A three-dimensional numerical method was used to simulate cavity expansion during installation and an in situ load test conducted on a single rammed aggregate pier (RAP). Verification of the numerical model was carried out by comparing the computed settlements at top and tip of the pier with the measured values. An un-rammed aggregate pier (UAP) of the same diameter and length was also simulated using the numerical method to demonstrate the effect of installation. Interpretations of the numerical results were focused on the load–settlement behavior, the bulging of the pier, the axial load distributions along the pier, and the stress paths of the soil around the pier. A parametric study was conducted to investigate the influence of the pier length/diameter ratio and the soil properties on the behavior of rammed and un-rammed aggregate piers.

KW - Cavity expansion

KW - Load test

KW - Numerical analysis

KW - Rammed aggregate pier

UR - https://doi.org/10.1016/j.compgeo.2009.05.007

UR - https://www.scopus.com/pages/publications/67651100642

M3 - Article

SN - 0266-352X

VL - 36

SP - 1191

EP - 1199

JO - Computers and Geotechnics

JF - Computers and Geotechnics

IS - 7

ER -

Behavior of Single Rammed Aggregate Piers Considering Installation Effects

Abstract

Scopus Subject Areas

Keywords

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