The Experts below are selected from a list of 1590 Experts worldwide ranked by ideXlab platform
Hadi Khabbaz - One of the best experts on this subject based on the ideXlab platform.
-
NUMERICAL STUDY ON DEFORMATION CHARACTERISTICS OF FIBRE REINFORCED Load Transfer Platform AND COLUMNS SUPPORTED EMBANKMENTS
Canadian Geotechnical Journal, 2020Co-Authors: Cong Dang, Liet Chi Dang, Hadi Khabbaz, Daichao ShengAbstract:In this investigation, a ground modification technique utilising fibre-reinforced-Load-Transfer-Platform (FRLTP) and column-supported (CS) embankment constructed on multilayered soft soils is propo...
-
Modelling of columns and fibre-reinforced Load-Transfer Platform-supported embankments
Proceedings of the Institution of Civil Engineers - Ground Improvement, 2020Co-Authors: Liet Chi Dang, Cong Chi Dang, Hadi KhabbazAbstract:A novel ground modification technique is proposed utilising a fibre-reinforced Load-Transfer Platform (FRLTP) and deep cement mixing column-supported (CS) embankment constructed over soft soils. An...
-
A Parametric Study of Deep Mixing Columns and Fibre Reinforced Load Transfer Platform Supported Embankments
Sustainable Civil Infrastructures, 2018Co-Authors: Liet Chi Dang, Cong Chi Dang, Hadi KhabbazAbstract:The ground improvement technique using deep cement mixing (DCM) columns combined with geosynthetic reinforced traditional angular layer as a Load Transfer Platform supported embankments has recently been adopted widely in construction of roads, railways, and highways over soft soils. This modification technique provides a practical and efficient measure for such infrastructure construction projects as it brings significant savings in construction costs and construction time. In this numerical study, a novel ground modification technique utilising fibre reinforced Load Transfer Platform (FRLTP) and DCM columns supported embankment constructed on top of multilayers of soft soils is proposed and investigated based on the finite element method incorporated in PLAXIS. A series of numerical analyses was firstly carried out on the full geometry of a DCM columns supported (CS) embankment reinforced without or with an FRLTP in a two-dimensional plane strain condition. The main objective of this analysis is to examine the effectiveness of the FRLTP inclusion into the CS embankment system in terms of maximum settlement and lateral displacement. Subsequently, an extensive parametric study was conducted to further investigate the influence of the FRLTP thickness on the performance of the CS embankment by comparing the maximum and differential settlements, and the lateral displacement. The numerical results reveal that the embankment with FRLTP inclusion can effectively enhance the total settlement and the lateral displacement of the embankment. The findings of the extensive parametric study reveal that the Platform thickness has significant influence on the embankment behavior, especially in improving the total and differential settlements, the rigidity and stability of the embankment, and the more Load Transfer from the embankment to DCM columns. Meanwhile it significantly minimises the lateral displacement and the embankment Loads Transferred to soft foundation soils.
-
analytical study for double layer geosynthetic reinforced Load Transfer Platform on column improved soft soil
Geotextiles and Geomembranes, 2017Co-Authors: Balaka Ghosh, Behzad Fatahi, Hadi KhabbazAbstract:Abstract The objective of this study is to propose a reasonably accurate mechanical model for double-layer geosynthetic reinforced Load Transfer Platform (LTP) on column reinforced soft soil which can be used by practicing engineers. The developed model is very useful to study the behaviour of LTP resting on soft soil improved with conventional columns such as concrete columns, piles, and deep soil mixing columns. The negligible tensile strength of granular material in LTP, bending and shear deformations of LTP, compressibility and shearing of soft soil have been incorporated in the model. Furthermore, the results from the proposed model simulating the soft soil as Kerr foundation model are compared to the corresponding solutions when the soft soil is idealised by Winkler and Pasternak foundation models. It is observed from the comparison that the presented model can be used as a tool for a better prediction of the LTP behaviour with multi layers of geosynthetics, in comparison with the situation that soft soil is modelled by Winkler and Pasternak foundations. Furthermore, parametric studies show that as the column spacing increases, the maximum deflection of LTP and normalised tension in the geosynthetics also increase. Whereas, the maximum deflection of LTP and normalised tension in the geosynthetics decrease with increasing LTP thickness, stiffness of subsoil, and stiffness of geosynthetic reinforcement. In addition, it is observed that the use of one stronger geosynthetic layer (e.g. 1 × 2000 kN/m) with the equivalent stiffness of two geosynthetic layers (e.g. 2 × 1000 kN/m) does not result in the same settlement of LTP and the tension of the geosynthetic reinforcement when compared to two weaker geosynthetic layers.
-
Numerical Analysis on the Performance of Fibre Reinforced Load Transfer Platform and Deep Mixing Columns Supported Embankments
Ground Improvement and Earth Structures, 2017Co-Authors: Liet Chi Dang, Cong Chi Dang, Hadi KhabbazAbstract:Deep cement mixing (DCM) columns are commonly employed as the most effective ground improvement approach in support of the road and railway embankments constructed over soft soils with low bearing capacity, insufficient shear strength and high compressibility. Finite element modeling is widely adopted to examine the performance of the road, railway and highway embankments during construction, post-construction as well as serviceability periods. Nevertheless, very limited studies have been conducted on the fibre reinforced Load Transfer Platform (FRLTP) and DCM columns supported highway embankments constructed over soft clays. This paper presents a numerical investigation based on fine element method (FEM) to investigate the influence of fibre inclusion in the Load Transfer Platform and DCM columns supported embankment on the stress Transfer mechanism, overall and differential settlements, surface settlement versus horizontal distance from the centreline of embankment, settlement with depth, and variations of excess pore water pressure, which have been analysed and discussed in detail. The findings of this numerical analysis indicate that the FRLTP and DCM columns supported embankments can effectively alleviate the total settlement, excess pore water pressure and intensity of embankment Load Transfer to soft foundation soil, while considerably enhance the rigidity, stability and Load Transfer mechanism from the embankment to soil-cement columns.
Luc Thorel - One of the best experts on this subject based on the ideXlab platform.
-
Numerical analysis of a geosynthetic-reinforced piled Load Transfer Platform - Validation on centrifuge test
Geotextiles and Geomembranes, 2014Co-Authors: Romain Girout, Daniel Dias, Matthieu Blanc, Luc ThorelAbstract:Soft soil improvement techniques using a network of rigid inclusions and geosynthetic reinforcement are investigated to improve our understanding of Load Transfer mechanisms towards piles. The physical modelling of the system consists in simulating fictional soft soil settlement through downward displacement of a perforated tray above a network of rigid piles placed in the centrifuge swinging basket. Tests are used to validate the results of the numerical study. Elasto-plastic and hypoplastic constitutive models have been used to predict the behaviour of the granular mattress, which simulates a Load Platform Transfer (LPT). A two-dimensional, axisymmetrical model has been adopted, which fulfils the validation on the experimental test and the time needed for calculation. The results of the parametric studies show that Load Transfer increases with mattress thickness and closer pile spacing. Geosynthetic deflection is reduced when Load Transfer is high.
-
Numerical analysis of a geosynthetic-reinforced piled Load Transfer Platform – Validation on centrifuge test
Geotextiles and Geomembranes, 2014Co-Authors: Romain Girout, Daniel Dias, Matthieu Blanc, Luc ThorelAbstract:Abstract Soft soil improvement techniques using a network of rigid inclusions and geosynthetic reinforcement are investigated to improve our understanding of Load Transfer mechanisms towards piles. The physical modelling of the system consists in simulating fictional soft soil settlement through downward displacement of a perforated tray above a network of rigid piles placed in the centrifuge swinging basket. Tests are used to validate the results of the numerical study. Elasto-plastic and hypoplastic constitutive models have been used to predict the behaviour of the granular mattress, which simulates a Load Platform Transfer (LPT). A two-dimensional, axisymmetrical model has been adopted, which fulfils the validation on the experimental test and the time needed for calculation. The results of the parametric studies show that Load Transfer increases with mattress thickness and closer pile spacing. Geosynthetic deflection is reduced when Load Transfer is high.
-
geosynthetic reinforcement of a granular Load Transfer Platform above rigid inclusions comparison between centrifuge testing and analytical modelling
Geosynthetics International, 2014Co-Authors: Matthieu Blanc, Romain Girout, Luc Thorel, Marcio S S AlmeidaAbstract:The soil reinforcement method, which consists of placing a granular mattress above a set of rigid inclusions, is used to Transfer part of the surface Load to the piles through arching. The addition of an extensible geosynthetic layer at the base of the mattress increases Load Transfer. A small-scale centrifuge model, the mobile tray device, is used to simulate the foundation behaviour by modelling soft soil settlement between the inclusions. A parametric study was conducted to examine the influence of the mattress thickness and of the pile spacing. The different test configurations are compared with regard to the stress transmitted to soft soil, to differential settlement and to the efficiency of Load Transfer. With thicker mattresses and/or closer pile meshing, Load Transfer increases and surface settlements are reduced. Geosynthetic maximum experimental and analytical deflections are also examined. For the analytical study, conducted using the EBGEO German standard, three different distributions of the vertical stress applied to the geosynthetic layer are compared: uniform, triangular and inverse triangular. All three scenario results fall within the range of the experimental results. The inverse triangular distribution reveals some deflection values that were lower than the uniform one. The triangular distribution gives the highest deflection values.
-
Mobile tray for simulation of 3D Load Transfer in pile-supported earth Platforms
2010Co-Authors: Gérard Rault, Luc Thorel, Alain Neel, Stéphane Buttigieg, François Derkx, Gonzague Six, U. OkyayAbstract:A composite foundation made of reinforced soft soil surmounted with a Load Transfer Platform displays mechanisms such as arching in this mattress. In order to study the parameters of the mattress, such as its density, its nature, its particle size distribution, its height and the influence of the distance between the vertical stiff inclusions, the soft soil is being replaced by a perforated tray, which moves vertically. A detailed description of the mobile tray device is presented, with some preliminary results from a sandy mattress.
Fabrice Emeriault - One of the best experts on this subject based on the ideXlab platform.
-
Soft soil improvement by rigid inclusions under vertical cyclic Loading: numerical back analysis
European Journal of Environmental and Civil Engineering, 2018Co-Authors: Moustafa Houda, Orianne Jenck, Fabrice EmeriaultAbstract:While the behaviour of rigid inclusion improvement systems under monotonic Loading is well known, the response under cyclic Loading is not yet fully understood and cannot be predicted due to the lack of knowledge about the Load Transfer mechanisms in the granular Platform. This article proposes a three-dimensional numerical modelling under a quasi-static vertical cyclic Loading. Numerical results are compared to experimental results obtained on a three-dimensional small scale model, to discuss the numerical procedure and the constitutive models implemented. For the Load Transfer Platform, a shear hardening elastoplastic model is implemented; for the soft soil, the modified Cam Clay model is used, as it features well the compressive and swelling behaviour. Some aspects of the behaviour of the system could be correctly reproduced, such as the Loads on inclusions and the settlements under monotonic Loading, the settlement accumulation and the decrease of the Load Transfer onto the inclusions along the cyclic Loading, as well as the qualitative influence of a rigid slab placed at the Platform surface on the settlement accumulation. However, other features could not be satisfactorily taken into account, namely the behaviour under a rigid slab submitted to cyclic Loading in terms of Load on the inclusions.
-
Numerical back analysis of the behaviour of soft soil improved by rigid piles under cyclic Loading
2017Co-Authors: Moustafa Houda, Orianne Jenck, Fabrice EmeriaultAbstract:The behaviour under cyclic conditions of soft soil improved using rigid piles, and in particular the Load Transfer mechanisms taking place in the Platform, is still an open question and thus appeals to additional research works. A numerical study in a continuum has been performed, with low frequency cyclic surface Loading (representing the case of filling and emptying of reservoirs, Loading and unLoading of storage areas, etc.). This study is developed based on experimental data obtained on a 1g laboratory small scale model, under monotonic and various cyclic Loading configurations, simulating the case of a relatively thin granular Load Transfer Platform, placed on top of the improved soil. The soft soil behaviour is simulated with the modified Cam-Clay model and the Load Transfer Platform behaviour with the elastoplastic CY-soil model. The numerical results are compared to the experimental results, in order to conclude on the capacity of the developed numerical model to simulate the observed structure's behaviour. © 2017 19th ICSMGE Secretariat. All rights reserved.
-
Physical evidence of the effect of vertical cyclic Loading on soil improvement by rigid piles: a small-scale laboratory experiment using Digital Image Correlation
Acta Geotechnica, 2016Co-Authors: Moustafa Houda, Orianne Jenck, Fabrice EmeriaultAbstract:This paper presents an experimental study focusing on the mechanisms taking place in a granular Platform supported by piles in soft soil under vertical cyclic Loading. An original three-dimensional laboratory model was developed, with a scale factor of 1/10 on the length. The model contains 20 rigid piles, and the compressible soil is explicitly simulated by a soft material. The case of a thin granular Load Transfer Platform overlaid by a rigid slab is studied. Tests were performed under monotonic or cyclic Loading applied on the surface using a pressurized membrane. The analysis is based on a force and displacement sensor instrumentation and application of a Digital Image Correlation technique. The evaluation of the Load Transfer onto the piles and the settlements in the Platform are some of the main points under the scope of this study. The effect of the cyclic Loading and the sequence of Loading on the structure’s response are examined by a comparative study between the series of cyclic and monotonic tests. Settlement accumulation and increase in the Load transmitted to the piles were observed during the cycles. The image analysis gives access to the displacement field within the granular Platform, and its evolution during the cycles could be analysed.
Liet Chi Dang - One of the best experts on this subject based on the ideXlab platform.
-
NUMERICAL STUDY ON DEFORMATION CHARACTERISTICS OF FIBRE REINFORCED Load Transfer Platform AND COLUMNS SUPPORTED EMBANKMENTS
Canadian Geotechnical Journal, 2020Co-Authors: Cong Dang, Liet Chi Dang, Hadi Khabbaz, Daichao ShengAbstract:In this investigation, a ground modification technique utilising fibre-reinforced-Load-Transfer-Platform (FRLTP) and column-supported (CS) embankment constructed on multilayered soft soils is propo...
-
Influence of Fibre-Reinforced Load Transfer Platform Supported Embankment on Floating Columns Improved Soft Soils
Lecture Notes in Civil Engineering, 2020Co-Authors: Cong Chi Dang, Liet Chi DangAbstract:Fibre reinforcement has been proved to be effective in improving geotechnical characteristics of both untreated and cemented soils, such as shear and compressive strength, bearing capacity, ductility and Load-settlement behaviour. The application of fibre-reinforced soils could be beneficial to construction of embankments over soft soils because it can maintain its proper strength and bearing capacity when suffering from large total and differential settlements. In this study, fibre-reinforced cemented soil foundation is proposed to be used as a fibre-reinforced Load Transfer Platform (FRLTP) combined with columns supported (CS) embankment constructed on multilayers of soft soils. To investigate the effect of addition of FRLTP into the CS embankment system, a numerical investigation based on the finite element analysis (FEA) using PLAXIS 2D was conducted. Moreover, a parametric analysis was carried out to evaluate the influence of the FRLTP thickness on the performance of the CS embankment when considering the vertical and differential settlements during the embankment construction and post-construction stages. The predicted results indicate that the vertical settlement and the lateral deformation considerably reduce with the insertion of FRLTP into the CS embankment system. Meanwhile, the outcomes of the parametric study reveal that the FRLTP thickness has a significant influence on the enhancement in the time-dependent differential settlement. Although the vertical settlement significantly decreases with increasing the FRLTP thickness, the post-construction vertical settlement was predicted to be most likely independent of the FRLTP thickness. The findings of this study could enable geotechnical engineers and designers to design a time-dependent performance-based FRLTP for a CS embankment over soft soils and aim to enhance the related design codes.
-
Evaluation of the At-Rest Lateral Earth Pressure Coefficient of Fibre Reinforced Load Transfer Platform and Columns Supported Embankments
CIGOS 2019 Innovation for Sustainable Infrastructure, 2020Co-Authors: Cong Chi Dang, Liet Chi DangAbstract:The at-rest lateral earth pressure coefficient (K_0) is an essential soil property in design of geotechnical problems, but investigating its influence on behaviour of embankments supported by Load Transfer Platform and columns improved soft soils has remained very limited. In this study, numerical modelling of a novel ground improvement technique utilising fibre reinforced Load Transfer Platform (FRLTP) and columns supported embankment founded on top of multilayers of soft soils is proposed and investigated by finite element analysis (FEA). This research aims to assess the influence of a new ground improvement technique using FRLTP on the embankment behaviour supported by columns in soft soils. Moreover, a numerical assessment by varying the K_0 value of FRLTP is performed through an extensive parametric study to investigate the K_0 influence on the behaviour of FRLTP and column-supported embankments over soft soils. Results of the numerical modelling show that the final settlement, the difference in settlement between columns and foundation soil, the lateral deformation can significantly be reduced by the insertion of FRLTP into a column-supported embankment system. The predicted results also indicate that the changes in the K_0 value were found to have no notable effects on the embankment behaviour.
-
Modelling of columns and fibre-reinforced Load-Transfer Platform-supported embankments
Proceedings of the Institution of Civil Engineers - Ground Improvement, 2020Co-Authors: Liet Chi Dang, Cong Chi Dang, Hadi KhabbazAbstract:A novel ground modification technique is proposed utilising a fibre-reinforced Load-Transfer Platform (FRLTP) and deep cement mixing column-supported (CS) embankment constructed over soft soils. An...
-
A Parametric Study of Deep Mixing Columns and Fibre Reinforced Load Transfer Platform Supported Embankments
Sustainable Civil Infrastructures, 2018Co-Authors: Liet Chi Dang, Cong Chi Dang, Hadi KhabbazAbstract:The ground improvement technique using deep cement mixing (DCM) columns combined with geosynthetic reinforced traditional angular layer as a Load Transfer Platform supported embankments has recently been adopted widely in construction of roads, railways, and highways over soft soils. This modification technique provides a practical and efficient measure for such infrastructure construction projects as it brings significant savings in construction costs and construction time. In this numerical study, a novel ground modification technique utilising fibre reinforced Load Transfer Platform (FRLTP) and DCM columns supported embankment constructed on top of multilayers of soft soils is proposed and investigated based on the finite element method incorporated in PLAXIS. A series of numerical analyses was firstly carried out on the full geometry of a DCM columns supported (CS) embankment reinforced without or with an FRLTP in a two-dimensional plane strain condition. The main objective of this analysis is to examine the effectiveness of the FRLTP inclusion into the CS embankment system in terms of maximum settlement and lateral displacement. Subsequently, an extensive parametric study was conducted to further investigate the influence of the FRLTP thickness on the performance of the CS embankment by comparing the maximum and differential settlements, and the lateral displacement. The numerical results reveal that the embankment with FRLTP inclusion can effectively enhance the total settlement and the lateral displacement of the embankment. The findings of the extensive parametric study reveal that the Platform thickness has significant influence on the embankment behavior, especially in improving the total and differential settlements, the rigidity and stability of the embankment, and the more Load Transfer from the embankment to DCM columns. Meanwhile it significantly minimises the lateral displacement and the embankment Loads Transferred to soft foundation soils.
Behzad Fatahi - One of the best experts on this subject based on the ideXlab platform.
-
a closed form solution for column supported embankments with geosynthetic reinforcement
Geotextiles and Geomembranes, 2019Co-Authors: Linshuang Zhao, Xueyu Geng, Wanhuan Zhou, Kaveng Yuen, Behzad FatahiAbstract:Abstract Soil arching effect results from the non-uniform stiffness in a geosynthetic-reinforced and column-supported embankment system. However, most theoretical models ignore the impact of modulus difference on the calculation of Load Transfer. In this study, a generalized mathematical model is presented to investigate the soil arching effect, with consideration given to the modulus ratio between columns and the surrounding soil. For simplification, a cylindrical unit cell is drawn to study the deformation compatibility among embankment fills, geosynthetics, columns, and subsoils. A deformed shape function is introduced to describe the relationship between the column and the adjacent soil. The measured data gained from a full-scale test are applied to demonstrate the application of this model. In the parametric study, certain influencing factors, such as column spacing, column length, embankment height, modulus ratio, and tensile strength of geosynthetic reinforcement, are analyzed to investigate the performance of the embankment system. This demonstrates that the inclusion of a geosynthetic reinforcement or enlargement of the modulus ratio can increase the Load Transfer efficiency. When enhancing the embankment height or applying an additional Loading, the height of the Load Transfer Platform tends to be reduced. However, a relatively long column has little impact on the Load Transfer Platform.
-
analytical study for double layer geosynthetic reinforced Load Transfer Platform on column improved soft soil
Geotextiles and Geomembranes, 2017Co-Authors: Balaka Ghosh, Behzad Fatahi, Hadi KhabbazAbstract:Abstract The objective of this study is to propose a reasonably accurate mechanical model for double-layer geosynthetic reinforced Load Transfer Platform (LTP) on column reinforced soft soil which can be used by practicing engineers. The developed model is very useful to study the behaviour of LTP resting on soft soil improved with conventional columns such as concrete columns, piles, and deep soil mixing columns. The negligible tensile strength of granular material in LTP, bending and shear deformations of LTP, compressibility and shearing of soft soil have been incorporated in the model. Furthermore, the results from the proposed model simulating the soft soil as Kerr foundation model are compared to the corresponding solutions when the soft soil is idealised by Winkler and Pasternak foundation models. It is observed from the comparison that the presented model can be used as a tool for a better prediction of the LTP behaviour with multi layers of geosynthetics, in comparison with the situation that soft soil is modelled by Winkler and Pasternak foundations. Furthermore, parametric studies show that as the column spacing increases, the maximum deflection of LTP and normalised tension in the geosynthetics also increase. Whereas, the maximum deflection of LTP and normalised tension in the geosynthetics decrease with increasing LTP thickness, stiffness of subsoil, and stiffness of geosynthetic reinforcement. In addition, it is observed that the use of one stronger geosynthetic layer (e.g. 1 × 2000 kN/m) with the equivalent stiffness of two geosynthetic layers (e.g. 2 × 1000 kN/m) does not result in the same settlement of LTP and the tension of the geosynthetic reinforcement when compared to two weaker geosynthetic layers.
-
Analytical solution to analyze LTP on column-improved soft soil considering soil nonlinearity
International Journal of Geomechanics, 2017Co-Authors: Balaka Ghosh, Behzad Fatahi, Hadi KhabbazAbstract:AbstractIn this paper, a mechanical model to idealize the Load-settlement response of the Load Transfer Platform (LTP) on column-improved soft soil is proposed. This model simultaneously considers the nonlinear and time-dependent stress-strain behavior of soft soil and the negligible tensile strength of the granular material in LTP. The reinforced Timoshenko beam is adopted to model LTP to consider the shear and flexural deformations. Soft soil is idealized by a spring-dashpot system that includes nonlinear and time-dependent behaviors. The columns and geosynthetics are modeled with linear Winkler springs in the applied range of stresses and rough elastic membrane, respectively. The response function of LTP has been derived for distributed pressure Loading in the plane strain condition. The principle of superposition is used to solve the fourth-order differential equations. Parametric studies indicate that the spacing of columns, thickness of LTP, degree of consolidation of the soft soil, and tensile stif...
-
Comparison of Coupled Flow-deformation and Drained Analyses for Road Embankments on CMC Improved Ground
Procedia Engineering, 2016Co-Authors: Hamed Mahdavi, Behzad Fatahi, Hadi Khabbaz, Philippe Vincent, Richard KellyAbstract:The use of controlled modulus columns (CMC) is gaining increased popularity in the support of rail and road bridge approach embankments on soft soils. The further columns are driven into the competent firm soils, the further the design will rely on the inclusions to take the bulk of the vertical Loads, as they become rigid inclusions. The advantage of this design approach is that it produces increased control over the settlement, but as a result the columns will attract greater Loads, including bending moment and shear force in situations where non-uniform Loading or ground conditions exist. The Load on the composite soil-CMC is uniformly distributed by the upper layer of granular Load Transfer Platform (LTP), which also includes a layer of reinforcement. Finite difference program FLAC3D has been used to numerically simulate an embankment on the improved ground with end-bearing CMC. A geosynthetic reinforcement layer has been simulated using the inbuilt FLAC3D geogrid element. In this paper, a comparison has been made between the drained and coupled flow-deformation analyses. The force in the reinforcement layer, in particular, has been compared for the two analysis approaches. It was found that according to the numerical simulation, the drained analysis provides lower estimates of the settlement, lateral displacement; and therefore, predicts less tension in the geosynthetic layer.
-
Assessing Load Transfer mechanism in CMC-supported embankments adopting Timoshenko beam theory
2015Co-Authors: Balaka Ghosh, Behzad Fatahi, Ahm Kamruzzaman, Hadi KhabbazAbstract:Controlled modulus columns (CMC) supported embankments are increasingly being used for construction of major highway embankments on expansive soils particularly near waterways or coastal regions. CMC is a faster, sustainable and economical ground improvement technology that stiffens the poor soil and transmits the Load from the traffic to a lower bearing stratum. The key influencing elements of the Load Transfer mechanism include embankment fill, Load Transfer Platform (LTP), CMC and the underlying soils. Use of LTP enhances the Load distribution mechanism in the CMC improved soft ground and minimises the post construction settlement of the ground. In this paper, reinforced Timoshenko beam theory is introduced to simulate the LTP with one layer of geosynthetics resting on CMC improved soft soil. A parametric study is conducted to investigate the importance of the height of the embankment on the maximum settlement of the LTP, tension developed in the geosynthetics and stress concentration ratio (the ratio of the stresses acting on CMC and soft soils) for the CMC supported embankments. Special attention is given to the stiffness of soft soil and shear stiffness of the geosynthetic layer. It has been observed that height of the embankment, the stiffness of the soft soil and the shear stiffness of the geosynthetics significantly influence the maximum settlement of the LTP and the stress concentration ratio. RESUME Les remblais soutenus par des colonnes a modules controles (CMC) sont de plus en plus utilises pour la construction de grands remblais routiers sur sols expansifs, particulierement pres des cours d'eau ou des regions cotieres. Les CMC est une technologie plus rapide, durable et economique qui renforce le sol pauvre et transmet la charge de la circulation a une strate de palier inferieur. Les cles majeures du mecanisme de Transfert de charges comprennent le remplissage des remblais, la plateforme de Transfert de charges (LTP), les CMC et les sols sous-jacents. L'utilisation de LTP ameliore le mecanisme de repartition des charges dans les sols meubles contenant des CMC et minimise le tassement de la terre apres implementation. Dans cet article, une version amelioree de la theorie des poutres de Timoshenko est introduit pour simuler la LTP avec une couche de geosynthetiques reposant sur un sol meuble contenant des CMC. Une etude parametrique a ete menee afin d'evaluer l'importance de la hauteur de la digue sur le tassement maximal de la LTP, la tension developpee dans les geosynthetiques et la proportion de concentration de contrainte (le rapport des contraintes agissant sur les CMC et les sols meubles) pour les remblais soutenus par des CMC. Une attention particuliere est accordee a la rigidite du sol meuble et la rigidite de cisaillement de la couche geosynthetique. Il a ete observe que la hauteur du remblai, la rigidite du sol meuble et la rigidite du cisaillement des materiaux geosynthetiques influencent significativement le tassement maximal de la LTP et la proportion de concentration de contrainte.