Advances in transportation geotechnics: Proceedings of the 1st International Conference on Transportation Geotechnics, Nottingham, UK, 25-27 August 2008

Front cover......Page 1
Table of Contents......Page 6
Preface......Page 12
The Organising and Advisory Committees......Page 14
1 Keynotes......Page 16
Innovations in design and construction of granular pavements and railways......Page 18
Unified constitutive modeling for pavement materials with emphasis on creep, rate and interface behavior......Page 30
Applications of reinforced soil for transport infrastructure......Page 42
Recent research on railway track sub-base behaviour......Page 52
The effect of soil viscosity on the behaviour of reinforced embankments......Page 62
2 UNBAR......Page 72
Characterizing the resilient behaviour of treated municipal solid waste bottom ash blends for use in foundations......Page 74
Rut depth prediction of granular pavements using the repeated load triaxial apparatus and application in New Zealand specifications for granular materials......Page 80
Assessment of sustainable highway geotechnics......Page 88
Using pavement trials: Evaluating rutting in forest roads in southern Scotland......Page 96
Calcined clay aggregate: A feasible alternative for Brazilian road construction......Page 104
Modulus-based quality management of unbound pavement layers with seismic methods......Page 112
A design method and performance based specification for UK road foundations......Page 118
The anti-shakedown effect......Page 126
Water in coarse granular materials: Resilient and retentive properties......Page 132
Measurements and modelling of anisotropic elastic behaviour of unbound granular materials......Page 140
Performance related design and construction of road foundations – Review of the recent changes to UK practice......Page 150
Utilization of waste foundry sand as pavement sub-base and fill material......Page 158
A study on permanent deformation of lateritic soils including the shakedown concept......Page 164
New Danish test method for the light weight deflectometer (LWD)......Page 172
Slotsgrus®: A new concept for footpaths with unbound surfaces......Page 176
Contact stiffness affecting discrete element modelling of unbound aggregate granular assemblies......Page 182
NordFoU – Pavement performance models. Part 2: Project level, unbound material......Page 188
Influence of water content on mechanical behaviour of gravel under moving wheel loads......Page 200
The evaluation of in-place recycled asphalt concrete as an unbound granular base material......Page 208
Stress studies for permanent deformation calculations......Page 216
Equivalence between dry bound macadam and other types of base layers for flexible pavements......Page 222
Types and amounts of fines affecting aggregate behaviour......Page 228
Using unbound aggregates resulting from amethyst mining in low volume roads......Page 234
Rampart roads in the peat lands of Ireland: Genesis, development and current performance......Page 242
The effect of compaction level on the performance of thin surfaced granular pavements......Page 250
Laboratory characterization and influence of mineralogy on the performance of treated and untreated granular materials for unpaved roads......Page 256
Shakedown analysis of road pavement performance......Page 262
Anisotropy level prediction model of unbound aggregate systems......Page 268
Utilization of waste foundry sand (WFS) as impermeable layer (drainage blanket) for pavement structures......Page 278
Resilient behaviour of paving materials and the change in deflection level with time......Page 284
3 Slope instability, stabilisation, and asset management......Page 290
Installation of optical fibre strain sensors on soil nails used for stabilising a steep highway cut slope......Page 292
Behaviour of the reinforced cuts in flysch rock mass......Page 298
Numerical modelling of lateral pile-soil interaction for a row of piles in a frictional soil......Page 306
New geophysical and geotechnical approaches to characterise under utilised earthworks......Page 314
Gault Clay embankment slopes on the A14 – Case studies of shallow and deep instability......Page 322
Performance of a very deep soil nailed wall in the Istanbul subway......Page 332
Landslide risk factors of geotechnical systems......Page 340
Landslide investigation of roads in Sochi on the basis of the optimum risk method......Page 346
Slope stabilization of an embankment on theWest Coast Main Line, UK......Page 350
Some developments in rock slope hazard assessments for road and rail......Page 358
Centrifuge modelling of slope stabilisation using a discrete pile row......Page 364
The effect of moisture on the stability of rock slopes: An experimental study on the rock slopes of KhoshYeylagh Main Road, Iran......Page 370
4 Construction on soft ground......Page 376
Centrifuge modelling of piled embankments......Page 378
Performance of embankments on soft ground: A1033 Hedon Road Improvement Scheme, UK......Page 384
The arching mechanism in piled embankments under road and rail infrastructure......Page 392
FE analysis of the long-term settlement and maintenance of a road on peaty ground......Page 398
Numerical modelling for life cycle planning of highway embankments on soft foundations......Page 404
A case study of the long-term settlement and life cycle cost of a road on peaty ground......Page 412
Pile-supported embankments on soft ground for a high speed railway: Load transfer, distribution and concentration by different construction methods......Page 416
Geotechnical challenges faced in the construction of the A55 expressway across Anglesey......Page 424
The effect of subsoil support in plane strain finite element analysis of arching in a piled embankment......Page 432
5 Interaction with structures and geogrid reinforced soil......Page 440
Design of reinforced soil structures using fine grained fill types......Page 442
Back-analysis of a tunnelling case history: A numerical approach......Page 448
Numerical modelling of the stability of shallow mine workings......Page 454
Analytical solution of multi-step reinforced soil slopes due to static and seismic loading......Page 460
Piled foundations for the M25 Motorway near Heathrow Airport......Page 468
Geotechnical aspects of masonry arch bridges......Page 474
Reinforced soil structures under the influence of superstructure loads......Page 482
6 Effect of climate change and vegetation......Page 488
Non-invasive time-lapse imaging of moisture content changes in earth embankments using electrical resistivity tomography (ERT)......Page 490
Predicting seasonal shrink swell cycles within a clay cutting......Page 496
Centrifuge modelling of embankments subject to seasonal moisture changes......Page 502
Construction and monitoring of a test embankment for evaluation of the impacts of climate change on UK transport infrastructure......Page 510
Field testing and modelling the effects of climate on geotechnical infrastructure – A collaborative approach......Page 516
Effects of climate change on slopes for transportation infrastructure......Page 522
7 Highways, pavements and subgrade......Page 530
Using soft clay modified with cement-agricultural wastes as road construction materials......Page 532
Time dependant volumetric behaviour of asphalt pavements under heavy loading and high temperature......Page 538
Quantifying effects of lime stabilized subgrade on conventional flexible pavement responses......Page 544
The capacity of improved Khon Kaen Loess as a road construction material......Page 550
Non-stationary temperature regime of the pavements......Page 556
Contaminated land: Recent research and development for UK Highways Agency......Page 562
An assessment of the selected reinforcements of motorway pavement subgrade......Page 568
Digital image based numerical approach for micromechanics of asphalt concrete......Page 576
8 Rail......Page 584
Assessment of layer thickness and uniformity in railway embankments with ground penetrating radar......Page 586
Ballast stressing on a railway track and the behaviour of limestone ballast......Page 592
Design methodology of slab track systems......Page 600
Geotechnical aspects of ballasted rail tracks and stabilising underlying soft soil formation......Page 608
Effect of loading frequency on the settlement of granular layer......Page 616
Testing the ultimate resistance at the sleeper/ballast interface......Page 622
Settlement of concrete slab track considering principal stress axis rotation in subgrade......Page 630
A comparison of trackbed design methodologies: A case study from a heavy haul freight railway......Page 636
Performance of canted ballasted track during curving of high speed trains......Page 642
9 Soil improvement......Page 648
Effects of freezing and thawing processes on the mechanical behavior of silty soils stabilized with fly ash......Page 650
Relationship between microstructure and hydraulic conductivity in compacted lime-treated soils......Page 658
Characteristics of soft clay stabilized for construction purposes......Page 666
Effects of potential deleterious chemical compounds on soil stabilisation......Page 672
Stability of the solidification process of a lime-treated silt under percolation conditions......Page 680
Development of composite improved soil with lightweight and deformability......Page 688
Some results of laboratory tests on lime-stabilized soils for high speed railways in Italy......Page 694
Stabilization of poor soil by paper sludge mixing......Page 700
10 Characterisation and recycling of geomaterials......Page 708
Beneficial use of brick rubble as pavement sub-base material......Page 710
Some observations on determining CBR and the use of stiffness as an alternative......Page 716
Experimental observations and theoretical predictions of shakedown in soils under wheel loading......Page 722
The response of ground penetrating radar (GPR) to changes in temperature and moisture condition of pavement materials......Page 728
Impact of changes in gradation of bases on performance due to pulverization......Page 734
Evaluation of a tropical soil’s performance in laboratory......Page 740
Qualifying soils for low volume roads based on soil and pavement mechanics......Page 744
In-ground stress-strain condition beneath center and edge of vibratory roller compactor......Page 752
Mechanical properties of paving material of pedestrian friendly pavements using coal ash......Page 758
Study of suction in unsaturated soils applied to pavement mechanics......Page 766
Large-scale direct shear testing of geocell reinforced soil......Page 774
Influence of hydraulicity on resilient modulus and Poisson’s ratio of hydraulic, graded iron and steel slag base-course material......Page 780
Author Index......Page 786
Back cover......Page 788