Deep mixing method for the construction of earth and water retaining walls

In the deep mixing method, the ground is mechanically mixed in place while a binder, often based on cement, is injected. After hardening of the soil-cement mixture, called soil mix material, soil mix elements are formed in the ground. Originally known as a ground improvement technique, the deep mixi...

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Main Authors: Nicolas Denies, Noël Huybrechts
Format: Article
Language:English
Published: RILEM Publications SARL 2017-09-01
Series:RILEM Technical Letters
Subjects:
Online Access:https://letters.rilem.net/index.php/rilem/article/view/27
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spelling doaj-351036b06761466faad29295d2da6d0c2020-11-24T21:55:30ZengRILEM Publications SARLRILEM Technical Letters2518-02312017-09-0121910.21809/rilemtechlett.2017.2727Deep mixing method for the construction of earth and water retaining wallsNicolas Denies0Noël Huybrechts1Belgian Building Research Institute, Geotechnical DivisionBelgian Building Research Institute, Geotechnical DivisionIn the deep mixing method, the ground is mechanically mixed in place while a binder, often based on cement, is injected. After hardening of the soil-cement mixture, called soil mix material, soil mix elements are formed in the ground. Originally known as a ground improvement technique, the deep mixing is more and more applied for the construction of earth-water retaining structures within the framework of excavation works. After a short introduction to the execution aspects of the method, the authors discuss the hydro-mechanical properties of the soil mix material mainly based on the results of the BBRI Soil Mix project (2009-2013). A design approach dedicated to the soil mix retaining walls and developed in collaboration with the SBRCURnet is then presented. In this methodology, which is in line with the structural Eurocodes, design rules are adapted to the functions of the soil mix wall (earth-water retaining, bearing and cut-off functions) including the temporary or permanent character of the application. Based on the result of large-scale bending tests, the interaction between the soil mix material and the steel reinforcement is considered in the calculations allowing a reduction of the steel section between 10 and 40 %.https://letters.rilem.net/index.php/rilem/article/view/27deep mixingsoil mix retaining wallmechanical characterizationdesign approach
collection DOAJ
language English
format Article
sources DOAJ
author Nicolas Denies
Noël Huybrechts
spellingShingle Nicolas Denies
Noël Huybrechts
Deep mixing method for the construction of earth and water retaining walls
RILEM Technical Letters
deep mixing
soil mix retaining wall
mechanical characterization
design approach
author_facet Nicolas Denies
Noël Huybrechts
author_sort Nicolas Denies
title Deep mixing method for the construction of earth and water retaining walls
title_short Deep mixing method for the construction of earth and water retaining walls
title_full Deep mixing method for the construction of earth and water retaining walls
title_fullStr Deep mixing method for the construction of earth and water retaining walls
title_full_unstemmed Deep mixing method for the construction of earth and water retaining walls
title_sort deep mixing method for the construction of earth and water retaining walls
publisher RILEM Publications SARL
series RILEM Technical Letters
issn 2518-0231
publishDate 2017-09-01
description In the deep mixing method, the ground is mechanically mixed in place while a binder, often based on cement, is injected. After hardening of the soil-cement mixture, called soil mix material, soil mix elements are formed in the ground. Originally known as a ground improvement technique, the deep mixing is more and more applied for the construction of earth-water retaining structures within the framework of excavation works. After a short introduction to the execution aspects of the method, the authors discuss the hydro-mechanical properties of the soil mix material mainly based on the results of the BBRI Soil Mix project (2009-2013). A design approach dedicated to the soil mix retaining walls and developed in collaboration with the SBRCURnet is then presented. In this methodology, which is in line with the structural Eurocodes, design rules are adapted to the functions of the soil mix wall (earth-water retaining, bearing and cut-off functions) including the temporary or permanent character of the application. Based on the result of large-scale bending tests, the interaction between the soil mix material and the steel reinforcement is considered in the calculations allowing a reduction of the steel section between 10 and 40 %.
topic deep mixing
soil mix retaining wall
mechanical characterization
design approach
url https://letters.rilem.net/index.php/rilem/article/view/27
work_keys_str_mv AT nicolasdenies deepmixingmethodfortheconstructionofearthandwaterretainingwalls
AT noelhuybrechts deepmixingmethodfortheconstructionofearthandwaterretainingwalls
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