Three-dimensional numerical modelling of geocell reinforced soils and its practical application

Fei Song, Yinghui Tian

Research output: Contribution to journalArticle

Abstract

This paper proposes a new numerical approach to model geocell reinforced soils, where the geocell is described as membrane elements and the complex interaction between geocell and soil is realized by coupling their degrees of freedom. The effectiveness and robustness of this approach are demonstrated using two examples, i.e., a geocell-reinforced foundation and a large scale retaining wall project. The first example validates the approach against established solutions through a comprehensive parametrical study to understand the influence of geocell on the improvement of bearing capacity of foundations. The study results show that reducing the geocell pocket size has a strong effect on improving the bearing capacity. In addition, when the aspect ratio maintains the same value, the bearing capacity improvement with increasing geocell height is insignificant. Comparing with the field monitoring and measurement in the project, the second example investigates the application of the approach to practical engineering projects. This paper provides a practically feasible and efficient modelling approach, where no explicit interface or contact is required. This allows geocell reinforced soils in large scale project can be effectively modelled where the mechanism for complex geocell-soil interaction can be explicitly observed.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalGeomechanics and Engineering
Volume17
Issue number1
DOIs
Publication statusPublished - 20 Jan 2019

Cite this

@article{aaaa951cc3a844d99594aa4afda75a88,
title = "Three-dimensional numerical modelling of geocell reinforced soils and its practical application",
abstract = "This paper proposes a new numerical approach to model geocell reinforced soils, where the geocell is described as membrane elements and the complex interaction between geocell and soil is realized by coupling their degrees of freedom. The effectiveness and robustness of this approach are demonstrated using two examples, i.e., a geocell-reinforced foundation and a large scale retaining wall project. The first example validates the approach against established solutions through a comprehensive parametrical study to understand the influence of geocell on the improvement of bearing capacity of foundations. The study results show that reducing the geocell pocket size has a strong effect on improving the bearing capacity. In addition, when the aspect ratio maintains the same value, the bearing capacity improvement with increasing geocell height is insignificant. Comparing with the field monitoring and measurement in the project, the second example investigates the application of the approach to practical engineering projects. This paper provides a practically feasible and efficient modelling approach, where no explicit interface or contact is required. This allows geocell reinforced soils in large scale project can be effectively modelled where the mechanism for complex geocell-soil interaction can be explicitly observed.",
keywords = "geocell, three-dimensional analysis, numerical modelling, foundation, retaining wall, FAILURE ENVELOPES, SAND, BEHAVIOR, STRIP, STRENGTH",
author = "Fei Song and Yinghui Tian",
year = "2019",
month = "1",
day = "20",
doi = "10.12989/gae.2019.17.1.001",
language = "English",
volume = "17",
pages = "1--9",
journal = "Geomechanics and Engineering",
issn = "2005-307X",
publisher = "Techno-Press",
number = "1",

}

Three-dimensional numerical modelling of geocell reinforced soils and its practical application. / Song, Fei; Tian, Yinghui.

In: Geomechanics and Engineering, Vol. 17, No. 1, 20.01.2019, p. 1-9.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Three-dimensional numerical modelling of geocell reinforced soils and its practical application

AU - Song, Fei

AU - Tian, Yinghui

PY - 2019/1/20

Y1 - 2019/1/20

N2 - This paper proposes a new numerical approach to model geocell reinforced soils, where the geocell is described as membrane elements and the complex interaction between geocell and soil is realized by coupling their degrees of freedom. The effectiveness and robustness of this approach are demonstrated using two examples, i.e., a geocell-reinforced foundation and a large scale retaining wall project. The first example validates the approach against established solutions through a comprehensive parametrical study to understand the influence of geocell on the improvement of bearing capacity of foundations. The study results show that reducing the geocell pocket size has a strong effect on improving the bearing capacity. In addition, when the aspect ratio maintains the same value, the bearing capacity improvement with increasing geocell height is insignificant. Comparing with the field monitoring and measurement in the project, the second example investigates the application of the approach to practical engineering projects. This paper provides a practically feasible and efficient modelling approach, where no explicit interface or contact is required. This allows geocell reinforced soils in large scale project can be effectively modelled where the mechanism for complex geocell-soil interaction can be explicitly observed.

AB - This paper proposes a new numerical approach to model geocell reinforced soils, where the geocell is described as membrane elements and the complex interaction between geocell and soil is realized by coupling their degrees of freedom. The effectiveness and robustness of this approach are demonstrated using two examples, i.e., a geocell-reinforced foundation and a large scale retaining wall project. The first example validates the approach against established solutions through a comprehensive parametrical study to understand the influence of geocell on the improvement of bearing capacity of foundations. The study results show that reducing the geocell pocket size has a strong effect on improving the bearing capacity. In addition, when the aspect ratio maintains the same value, the bearing capacity improvement with increasing geocell height is insignificant. Comparing with the field monitoring and measurement in the project, the second example investigates the application of the approach to practical engineering projects. This paper provides a practically feasible and efficient modelling approach, where no explicit interface or contact is required. This allows geocell reinforced soils in large scale project can be effectively modelled where the mechanism for complex geocell-soil interaction can be explicitly observed.

KW - geocell

KW - three-dimensional analysis

KW - numerical modelling

KW - foundation

KW - retaining wall

KW - FAILURE ENVELOPES

KW - SAND

KW - BEHAVIOR

KW - STRIP

KW - STRENGTH

U2 - 10.12989/gae.2019.17.1.001

DO - 10.12989/gae.2019.17.1.001

M3 - Article

VL - 17

SP - 1

EP - 9

JO - Geomechanics and Engineering

JF - Geomechanics and Engineering

SN - 2005-307X

IS - 1

ER -