Articles

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A new parameter for classification and evaluation of railway ballast fouling (with Buddhima Indraratna and Li-jun Su), Faculty of Engineering - Papers (2011)

The physical condition of railway ballast should be regularly inspected and accordingly, ballast cleaning should...

 

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Assessing the potential of internal erosion and suffusion of granular soils (with Buddhima Indraratna and Vo Trong Nguyen), Faculty of Engineering - Papers (2011)

This study presents a new empirical criterion for assessing the potential of internal erosion and...

 

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Automatic Classification of Ground-Penetrating-Radar Signals for Railway-Ballast Assessment (with Wenbin Shao, Abdesselam Bouzerdoum, Son Lam Phung, Lijun Su, and Buddhima Indraratna), IEEE Transactions on Geoscience and Remote Sensing (2011)

The ground-penetrating radar (GPR) has been widely used in many applications. However, the processing and...

 

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Automatic classification of ground-penetrating-radar signals for railway-ballast assessment (with Wenbin Shao, Abdesselam Bouzerdoum, Son Lam Phung, Li-jun Su, and Buddhima Indraratna), Faculty of Informatics - Papers (2011)

The ground-penetrating radar (GPR) has been widely used in many applications. However, the processing and...

 

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Behavior of geogrid-reinforced ballast under various levels of fouling (with Buddhima Indraratna and Ngoc Trung Ngo), Faculty of Engineering - Papers (2011)

This paper presents a study of how the interface between ballast and geogrid copes with...

 

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Model track studies on fouled ballast using ground penetration radar and multichannel analysis of surface wave (with p Anbazhagan, Li-jun Su, and Buddhima Indraratna), Faculty of Engineering - Papers (2011)

Ballast fouling is created by the breakdown of aggregates or outside contamination by coal dust...

 

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The effectiveness of partially penetrating vertical drains under a combined surcharge and vacuum preloading (with Xueyu Geng and Buddhima Indraratna), Faculty of Engineering - Papers (2011)

This paper considers the consolidation of a layer of clay in which partially penetrating prefabricated...

 

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An evaluation of fouled ballast in a laboratory model track using ground penetrating radar (with Li-jun Su and Buddhima Indraratna), Faculty of Engineering - Papers (2010)

Ground penetrating radar (GPR) was used to evaluate fouled ballast in a prototype model railway...

 

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Analysis of soil disturbance associated with mandrel-driven prefabricated vertical drains using an elliptical cavity expansion theory (with Ali Ghandeharioon and Buddhima Indraratna), Faculty of Engineering - Papers (2010)

The installation of mandrel-driven prefabricated vertical drains and resulting disturbance of soft saturated clays are...

 

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Class A prediction of the behavior of soft estuarine soil foundation stabilized by short vertical drains beneath a rail track (with Buddhima Indraratna, Brook Eewers, and Mark Adams), Faculty of Engineering - Papers (2010)

Abstract: In Australia, very few rail tracks have been constructed directly on deep estuarine deposits....

 

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Field assessment of the performance of a ballasted rail track with and without geosynthetics (with Buddhima Indraratna, Sanjay Nimbalkar, David Christie, and Jayan Sylaja J S Vinod), Faculty of Engineering - Papers (2010)

Understanding the complex mechanisms of stress transfer and strain accumulation in layers of track substructure...

 

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Radial consolidation modelling incorporating the effect of a smear zone for a multilayer soil with downdrag caused by mandrel action (with Buddhima Indraratna), Faculty of Engineering - Papers (2010)

A system of prefabricated vertical drains with surcharge preloading is an effective method for promoting...

 

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Review of methods of analysis for the use of vacuum preloading and vertical drains for soft clay improvement (with Buddhima Indraratna and Xueyu Geng), Faculty of Engineering - Papers (2010)

The use of vertical drains with vacuum preloading for soft soil improvement has become a...

 

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Sustainable soil improvement via vacuum preloading (with Buddhima Indraratna, Richard Kelly, and Henk Buys), Faculty of Engineering - Papers (2010)

The application of prefabricated vertical drains combined with vacuum and surcharge preloading is considered to...

 

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Using a seismic survey to measure the shear modulus of clean and fouled ballast (with p Anbazhagan, Buddhima Indraratna, and Lijun Su), Faculty of Engineering - Papers (2010)

In this paper a first time attempt has beenmade tomeasure the lowstrain shearmodulus of clean...

 

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A review of ballast characteristics, geosynthetics, confining pressures and native vegetation in rail track stabilisation (with Buddhima Indraratna, Jayan Sylaja J S Vinod, and Hadi Khabbaz), Faculty of Engineering - Papers (2009)

Given the increased demand for freight transport for the mining and agriculture industries, and for...

 

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Design procedure for vertical drains considering a linear variation of lateral permeability within the smear zone (with Buddhima Indraratna), Faculty of Engineering - Papers (2009)

A system of vertical drains with surcharge preloading is an effective method for promoting radial...

 

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Experimental investigation on effectiveness of a vertical drain under cyclic loads (with Buddhima Indraratna and Anass Attya), Faculty of Engineering - Papers (2009)

This study examines the effectiveness of a prefabricated vertical drain PVD installed in reconstituted soft...

 

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Analytical and Numerical Modelling of Consolidation by Sand Drains beneath a Circular Embankment (with B. Indraratna and A. Aljorany), Faculty of Engineering - Papers (2008)

: In the analysis of axisymmetric problems, it is often imperative that aspects of geometry,...

 

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2D and 3D Numerical Modeling of Combined Surcharge and Vacuum Preloading with Vertical Drains (with B. Indraratna and J. Chu), Faculty of Engineering - Papers (2008)

This paper presents a three-dimensional (3D) and two-dimensional (2D) numerical analysis of a case study...

 

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Laboratory Modeling of Consolidation Behavior of Soft Clays Using Vacuum-Surcharge Consolidation Method (with B. Indraratna and M. Sakr), Faculty of Engineering - Papers (2008)

In this study, the large-scale apparatus used to examine vacuum preloading in conjunction with conventional...

 

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Evaluation of smear zone extent surrounding mandrel driven vertical drains using the cavity expansion theory (with Iyathurai Sathananthan and Buddhima Indraratna), Faculty of Engineering - Papers (2008)

In this study, an attempt is made to analyse the extent of the smear zone...

 

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Foundation behaviour below an embankment on soft soils (with Briony Rankine, Buddhima Indraratna, N. Sivakugan, and Vasantha Wijeyakulasuriya), Faculty of Engineering - Papers (2008)

The Sunshine Motorway is one of the major traffic corridors that service the South East...

 

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Soft ground improvement by vacuum-assisted preloading (with B. Indraratna), Faculty of Engineering - Papers (2007)

This paper describes the behaviour of soft soil foundation stabilized with vacuum-assisted preloading at the...

 

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Numerical modelling of soft soil stabilized by vertical drains, combining surcharge and vacuum preloading for a storage yard (with B. Indraratna and C. Jian), Faculty of Engineering - Papers (2007)

This paper presents a finite element analysis of a case study of a combined vacuum...

 

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Analytical solutions and design curves for vacuum-assisted consolidation with both vertical and horizontal drainage (with B. Indraratna), Faculty of Engineering - Papers (2007)

A system of vertical drains combined with vacuum preloading is an effective method for promoting...

 

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Reply to the discussion by Tran and Mitachi on “Analytical and Numerical Solutions for a Single Vertical Drain including the Effects of Vacuum Preloading" (with B. Indraratna and I. Sathananthan), Faculty of Engineering - Papers (2006)

The writers are grateful for the interest and the feedback provided by the discussers. Responses...

 

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Predictions and Performances of Prefabricated Vertical Drain Stabilised Soft Clay Foundations (with B. Indraratna), Faculty of Engineering - Papers (2006)

In this paper, the analytical solution for radial consolidation of soft soils is proposed considering...

 

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Analytical and Numerical Modeling of Soft Soil Stabilized by Prefabricated Vertical Drains Incorporating Vacuum reloading (with B. Indraratna, I. Sathananthan, and A. S. Balasubramaniam), Faculty of Engineering - Papers (2005)

This paper describes the analytical formulation of a modified consolidation theory incorporating vacuum pressure, and...

 

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Analytical and numerical solutions for a single vertical drain including the effects of vacuum preloading (with B. Indraratna and I. Sathananthan), Faculty of Engineering - Papers (2005)

A system of vertical drains combined with vacuum preloading is an effective method to accelerate...

 

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Radial consolidation of clay using compressibility indices and varying horizontal permeability (with B. Indraratna and I. Sathananthan), Faculty of Engineering - Papers (2005)

A system of vertical drains with surcharge load to accelerate consolidation by shortening the drainage...

 

Books

Advanced Rail Geotechnology - Ballasted Track (with Buddhima Indraratna and Wadud Salim), Faculty of Engineering - Papers (2011)
 

Contributions to Books

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Predictions and observations of soft clay foundations stabilized with geosynthetic drains and vacuum surcharge (with B. Indraratna, A. S. Balasubramaniam, and V. Wijeyakulasuriya), Faculty of Engineering - Papers (2005)

This chapter starts with an introduction of a revised analytical model of radial drainage with...

 

Presentations

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Consolidation by vertical drain beneath a circular embankment using analytical and numerical modelling (with Buddhima Indraratna and A Aljorany), Faculty of Engineering - Papers (2011)

When prefabricated vertical drains (PVDs) are installed beneath circular embankment (i.e. circular oil tanks or...

 

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Consolidation of ground with partially penetrated PVDs combined with vacuum preloading (with Xueyu Geng and Buddhima Indraratna), Faculty of Engineering - Papers (2011)

Partially penetrating prefabricated vertical drain (PVDs) with a combined surcharge and vacuum preloading are considered...

 

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Cyclic behaviour of soft soil subgrade improved by prefabricated vertical drains (with Buddhima Indraratna and Jing Ni), Faculty of Engineering - Papers (2011)

The behaviour of saturated soft clays subjected to cyclic loading is of considerable importance in...

 

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Experimental study on the effectiveness of prefabricated vertical drains under cyclic loading (with Buddhima Indraratna and Guanghui Meng), Faculty of Engineering - Papers (2011)

This study is an attempt to investigate the effectiveness of a prefabricated vertical drain (PVD)...

 

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Non-destructive assessment of rail track condition using ground penetrating radar (with L J. Su and Buddhima Indraratna), Faculty of Engineering - Papers (2011)

Ground penetrating radar (GPR) can be used to locate interfaces and underground utilities, and evaluate...

 

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Performance and prediction of vacuum combined surcharge consolidation at Port of Brisbane (with Buddhima Indraratna, Xueyu Geng, Jayantha Ameratunga, and Peter Boyle), Faculty of Engineering - Papers (2011)

During the past decade, the application of vacuum preloading for stabilising soft coastal clay and...

 

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Physical and chemical ground improvement for sustainable transportation infrastructure under cyclic loads (with Buddhima Indraratna, Jayan S. Vinod, and Sanjay Nimbalkar), Faculty of Engineering - Papers (2011)

Railways form one of the major worldwide transportation networks and they continue to provide quick...

 

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Stabilisation of ballast and subgrade with geosynthetic grids and drains for rail infrastructure (with Buddhima Indraratna and Sanjay Nimbalkar), Faculty of Engineering - Papers (2011)

Rail tracks are often placed on ballast that is intended to provide a free draining...

 

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Use of geosynthetics in railways including geocomposites and vertical drains (with Buddhima Indraratna and Sanjay Nimbalkar), Faculty of Engineering - Papers (2011)

Australia relies heavily on rail for the transportation of bulk commodities and passenger services, and...

 

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Analytical solutions for a single vertical drain with time-dependent vacuum combined surcharge preloading in membrane and membraneless systems (with Xueyu Geng and Buddhima Indraratna), Faculty of Engineering - Papers (2010)

Vertical drains combined with vacuum pressure and surcharge preloading are widely used to accelerate the...

 

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Automatic classification of GPR signals (with W Shao, A Bouzerdoum, S L. Phung, L Su, and B Indraratna), Faculty of Informatics - Papers (2010)

Ground penetrating radar has been widely used in many areas. However, the processing and interpretation...

 

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Investigation on effectiveness of a prefabricated vertical drain during cyclic loading (with Buddhima Indraratna and Jing Ni), Faculty of Engineering - Papers (2010)

The effectiveness of prefabricated vertical drains (PVDs) in enhancing the stability of soft soils during...

 

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Nonlinear analysis for a single vertical drain including the effects of preloading considering the compressibility and permeability of the soil (with Buddhima Indraratna and Xueyu Geng), Faculty of Engineering - Papers (2010)

In this paper, the free strain radial consolidation theory incorporating the changes of compressibility and...

 

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Soft soils improved by prefabricated vertical drains: performance and prediction (with Buddhima Indraratna, V Wijeyakulasuriya, G McIntosh, and R Kelly), Faculty of Engineering - Papers (2010)

The use of prefabricated vertical drains with preloading is now common practice and is proving...

 

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Modelling of combined vacuum and surcharge preloading with vertical drains (with Buddhima Indraratna and Richard Kelly), Faculty of Engineering - Papers (2009)

In this study, 2D and 3D numerical analyses were conducted to predict embankment behaviour on...

 
Rail track condition assessment using ground penetrating radar (with Li-jun Su and Buddhima Indraratna), Faculty of Engineering - Papers (2009)
 

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Soft ground improvement via vertical drains and vacuum assisted preloading (with Buddhima Indraratna, Vasantha Wijeyakulasuriya, and A S. Balasubramaniam), Faculty of Engineering - Papers (2009)

Application of vacuum assisted preloading is an imperative method when a considerable load is required...

 

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Soft soil foundation improved by vacuum and surcharge preloading at Ballina bypass, Australia (with Buddhima Indraratna, Richard Kelly, and Henk Buys), Faculty of Engineering - Papers (2009)

The Pacific Highway is being upgraded to support the transportation demand between Sydney and Brisbane,...

 

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Effects of Partially Penetrating Prefabricated Vertical Drains and Loading Patterns on Vacuum Consolidation (with B. Indraratna), Faculty of Engineering - Papers (2008)

In this study, numerical modeling of a multi-drain system is employed to determine the optimum...

 

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Finite element simulation of mandrel penetration in a normally consolidated soil (with Ali Ghandeharioon and Buddhima Indraratna), Faculty of Engineering - Papers (2008)

In this paper, a finite element simulation of the mandrel penetration in normally consolidated soils...

 
Ground improvement with special reference to non-toxic chemical stabilisation and deep sub-surface drainage (with Buddhima Indraratna and Jayan Sylaja J S Vinod), Faculty of Engineering - Papers (2008)

In this paper, two advanced ground improvement schemes have been introduced to improve soft and...

 
Modelling of soft ground consolidation via combined surcharge and vacuum preloading (with Buddhima Indraratna and Ali Ghandeharioon), Faculty of Engineering - Papers (2008)

A system of vertical drains combined with vacuum and surcharge preloading is an effective approach...

 

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Vacuum consolidation effects on lateral yield of soft clays as applied to road and railway embankment (with B. Indraratna, G. McIntosh, and A. Balasubramaniam), Faculty of Engineering - Papers (2007)

The use of vertical drains with vacuum preloading is considered as the most effective and...

 

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Cyclic behaviour of PVD-soft soil subgrade for improvement of railway tracks (with A. Attya and B. Indraratna), Faculty of Engineering - Papers (2007)

The behaviour of saturated soft clays subjected to cyclic Loading is of considerable importance in...

 

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Soft Clay Stabilisation Using Prefabricated Vertical Drains and the Role of Viscous Creep at the Site of Sunshine Motorway, Queensland (with B. Indraratna and V. Wijeyakulasuriya), Faculty of Engineering - Papers (2007)

The Soft Soil Creep and the Soft Soil models are employed to analyse the behaviour...

 

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Soft clay foundation improvement with drainage and geo-inclusions, with special reference to the performance of embankments and transportation systems (with B. Indraratna, V. Wijeyakulasuriya, and A. S. Balasubramaniam ), Faculty of Engineering - Papers (2007)

In this paper, the geotechnical aspects of soft clay improvement using prefabricated vertical drains (PVDs)...

 

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Effectiveness of Vertical Drains in Dissipating Excess Pore Pressures Induced by Cyclic Loads in Clays (with A. Attya and B. Indraratna), Faculty of Engineering - Papers (2007)

The purpose of this paper is to investigate the effectiveness of Prefabricated Vertical Drains (PVDs)...

 

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Reconstruction Methods for Tsunami Affected Coastal Soils with Special Reference to Low-Cost Dwellings and Rail Tracks (with B. Indraratna and H. Khabbaz), Faculty of Engineering - Papers (2007)

The Boxing Day tsunami in December 2004 devastated several South and Southeast Asian countries. In...

 

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Analysis of Radial Vacuum-Assisted Consolidation Using 3D Finite Element Method (with B. Indraratna), Faculty of Engineering - Papers (2007)

In this study, a 3D numerical modelling of a single vertical drains consolidation incorporating vacuum...

 

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Soft Clay Stabilization with Geosynthetic Vertical Drains beneath Road and Railway Embankments: A Critical Review of Analytical Solutions and Numerical Analysis (with B. Indraratna and J. Chu), Faculty of Engineering - Papers (2007)

In the wide array of existing ground improvement schemes, the use of vertical drains with...

 

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Development and application of constitutive model for railway ballast (with B. Indraratna and W. Salim), Faculty of Engineering - Papers (2007)

This Discussion Paper includes an elasto-plastic stress-strain constitutive model developed at the University of Wollongong,...

 

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Radial consolidation theories and numerical analysis of soft soil stabilisation via prefabricated vertical drains (with B. Indraratna and R. Walker), Faculty of Engineering - Papers (2007)

In this paper, an analytical solution based on actual radial soil permeability and compressibility is...

 
Vacuum consolidation of soft clay via vertical drains and associated design charts (with Buddhima Indraratna and Mohamed Sakr), Faculty of Engineering - Papers (2007)

A system of vertical drains combined with vacuum preloading is an effective method for promoting...

 

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Stabilisation of rail tracks and underlying soft soil formations (with B. Indraratna and M. A. Shahin), Faculty of Engineering - Papers (2006)

Construction of rail tracks requires appropriate improvement techniques for ballast and underlying soft formation soil,...

 

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Performance and prediction of soft clay behavior under vacuum conditions (with B. Indraratna), Faculty of Engineering - Papers (2006)

This paper describes the behavior of soft soil foundation under vacuum-assisted preloading at the Second...

 

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Soft soil stabilisation with special reference to road and railway embankments (with B. Indraratna, V. Wijeyakulasuriya, M. A. Shahin, and D. Christie), Faculty of Engineering - Papers (2006)

Much of Australian railway tracks traverse coastal areas containing soft soils and marine deposits. Pre-construction...

 

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Analytical modeling and field assessment of embankment stabilized with vertical drains and vacuum preloading (with B. Indraratna and I. Sathananthan), Faculty of Engineering - Papers (2006)

This study presents an analytical model of radial drainage with vacuum preloading using compressibility indices...

 

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Elastic Visco-plastic Consolidation Modelling of Soft Clays Improved by Geosynthetic Vertical Drains (with B. Indraratna), Faculty of Engineering - Papers (2006)

In this paper, an elastic viscoplastic (creep) model is incorporated into the consolidation equation to...

 

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Three-Dimensional Analysis of Soft Soil Consolidation improved by Prefabricated Vertical Drains (with B. Indraratna), Faculty of Engineering - Papers (2006)

A system of prefabricated vertical drains (PVDs) with a surcharge load is an effective method...

 

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Stabilisation of Ballasted Rail Tracks and Underlying Soft Formation Soils with Geosynthetic Grids and Drains (with B. Indraratna, M. Shahin, and D. Christie), Faculty of Engineering - Papers (2006)

Railway ballast deforms and degrades progressively under heavy cyclic loading. Ballast degradation is influenced by...

 

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Improvement of soft clays using vacuum-assisted consolidation method (with B. Indraratna), Faculty of Engineering - Papers (2006)

In this study, the analytical modeling of one-dimensional consolidation by vertical drains with vacuum preloading...

 

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Developments in Geotechnical and Geo-environmental research in relation to low-lying floodplain improvement, with special reference to acidic soil improvement (with B. Indraratna, A. Golab, and M. Shahin), Faculty of Engineering - Papers (2006)

In many countries, the ever-growing demand for housing and tourism in coastal regions has forced...

 

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Tsunami affected Coastal Soil Disturbance and Implications on Reconstruction with Special Reference to Low-cost Dwellings and Rail Tracks (with B. Indraratna, M. Shahin, and H. Khabbaz), Faculty of Engineering - Papers (2005)

On 26 December 2004, the largest earthquake for more than 4 decades (magnitude 9.0) occurred...

 

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Analytical and numerical solutions for soft clay consolidation using geosynthetic vertical drains with special reference to embankments (with B. Indraratna, I. Sathananthan, M. Shahin, and H. Khabbaz), Faculty of Engineering - Papers (2005)

Good quality geologic materials for construction are also becoming scarce. Due to these reasons and...

 

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Laboratory Determination of Efficiency of Prefabricated Vertical Drains Incorporating Vacuum Preloading (with B. Indraratna), Faculty of Engineering - Papers (2004)

This paper is mainly concerned with a laboratory study to investigate the effect of vacuum...

 

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Mathematical modeling and field evaluation of embankment stabilized with vertical drains incorporating vacuum preloading (with B. Indraratna), Faculty of Engineering - Papers (2004)

This study presents the analytical modeling of vertical drains incorporating vacuum preloading in both axisymmetric...