ORCID Profile
0000-0002-8234-7846
Current Organisation
Colorado School of Mines
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Civil Geotechnical Engineering | Civil Engineering | Geotechnical Engineering | Geomechanics and Resources Geotechnical Engineering | Resources Engineering and Extractive Metallurgy |
ANZSRC Socio-Economic Objective (SEO)
Civil Construction Design | Oil and Gas Extraction | Coal Mining and Extraction | Civil | Civil Construction Planning | Natural Hazards not elsewhere classified | Natural Hazards in Urban and Industrial Environments | Civil | Road Infrastructure and Networks | Rail Infrastructure and Networks
Related Links
Publications
In situ stress determination from inversion of hydraulic fracturing data
Publisher: Elsevier BV
Date: 04-2011
Initiation pressure, location and orientation of hydraulic fracture
Publisher: Elsevier BV
Date: 2012
Analysis of Infinite Slopes with Spatially Random Shear Strength
Publisher: American Society of Civil Engineers
Date: 07-03-2008
DOI: 10.1061/40971(310)15
Modelling spatial variability in geotechnical engineering
Publisher: Informa UK Limited
Date: 02-01-2016
Numerical and analytical observations on long and infinite slopes
Publisher: Wiley
Date: 22-03-2011
DOI: 10.1002/NAG.909
Risk Assessment in Geotechnical Engineering: Stability Analysis of Highly Variable Soils
Publisher: American Society of Civil Engineers
Date: 29-05-2012
One-Dimensional Probabilistic Uncoupled Consolidation Analysis by the Random Finite Element Method
Publisher: American Society of Civil Engineers
Date: 07-03-2008
DOI: 10.1061/40971(310)17
Influence of Spatial Variability on Slope Reliability Using 2-D Random Fields
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2009
Probabilistic Design of Slopes in Normally Consolidated Clays
Publisher: American Society of Civil Engineers
Date: 06-2017
Towards reliable and effective site investigations
Publisher: Thomas Telford Ltd.
Date: 03-2005
DOI: 10.1680/GEOT.2005.55.2.109
Abstract: It is widely appreciated that, in civil engineering and building projects, the largest element of financial and technical risk usually lies in the ground. Almost exclusively, the scope of geotechnical investigations is governed not by what is needed to characterise the subsurface conditions appropriately but, rather, by how much the client and project manager are willing to spend. There is often little correlation between the variability of the ground and the scope of the investigation. This paper presents the results of a Monte Carlo simulation incorporating many 3D single-layer soil profiles with different statistical characteristics. A three-storey building founded on nine pad footings is used to assess the reliability of various site investigation scopes and test methods. The pad footings are designed on the basis of settlement, and are examined using 3D finite element analysis and Schmertmann's method. It is observed, as expected, that the likelihood of underdesigning or overdesigning a footing decreases as the scope of the investigation increases. The relationship between these likelihoods and the variability of the ground is presented.
Probabilistic Stability Analysis of Slopes by Conditional Random Fields
Publisher: American Society of Civil Engineers
Date: 06-2017
Probabilistic infinite slope analysis
Publisher: Elsevier BV
Date: 06-2011
Reliability analysis of beams on random elastic foundations
Publisher: Thomas Telford Ltd.
Date: 02-2013
Abstract: The classical problem of a beam on an elastic foundation has long been of practical interest to geotechnical engineers, because it provides a framework for computing deflections not only of foundations, but also of vertically oriented laterally loaded piles. The supporting soil can be modelled as an elastic medium, which can be calibrated to represent the stiffness of the soils adjacent to the beam (or pile). The objective of this paper is to study the influence of spatially random soil stiffness on deformations of transversely loaded homogeneous piles and beams, using a combination of finite-element analysis, random field theory and Monte Carlo simulations. Following code validation against alternative solutions, the method investigates how the statistically defined soil stiffness (mean, standard deviation and spatial correlation length) influences the mean and standard deviation of pile or beam deflection. The goal of such an approach is to estimate the probability of deflections exceeding some design threshold.
Probabilistic stability analyses of undrained slopes with linearly increasing mean strength
Publisher: Thomas Telford Ltd.
Date: 08-2017
Abstract: Based on recently published deterministic solutions as a benchmark, the random finite-element method is used here to investigate the influence of spatial variability on the undrained stability of normally consolidated random slopes, where the mean strength increases linearly with depth while the coefficient of variation remains constant. Results are presented in the form of charts that give the mean and standard deviation of a dimensionless stability number. Using the charts presented in this note, engineers can obtain a preliminarily assessment of the probability of failure of normally consolidated clay slopes.
Probabilistic Analysis of Coupled Soil Consolidation
Publisher: American Society of Civil Engineers (ASCE)
Date: 03-2010
Comparison of Slope Reliability Methods of Analysis
Publisher: American Society of Civil Engineers
Date: 15-02-2010
Numerical analysis of effective elastic properties of geomaterials containing voids using 3D random fields and finite elements
Publisher: Elsevier BV
Date: 10-2013
Observations on the extended Matsuoka-Nakai failure criterion
Publisher: Wiley
Date: 10-12-2009
DOI: 10.1002/NAG.810
On the efficient estimation of small failure probability in slopes
Publisher: Springer Science and Business Media LLC
Date: 24-06-2016
Front Matter
Publisher: American Society of Civil Engineers
Date: 06-2017
Neural network prediction of the reliability of heterogeneous cohesive slopes
Publisher: Wiley
Date: 18-01-2016
DOI: 10.1002/NAG.2496
Measuring the Risk of Geotechnical Site Investigations
Publisher: American Society of Civil Engineers
Date: 14-10-2007
DOI: 10.1061/40914(233)2
A method for generating virtual soil profiles with complex, multi-layer stratigraphy
Publisher: Informa UK Limited
Date: 18-12-2019
Probabilistic Finite Element Analysis of a Raft Foundation Supported by Drilled Shafts in Karst
Publisher: American Society of Civil Engineers
Date: 21-06-2011
DOI: 10.1061/41183(418)15
T cells from patients with Guillain-Barré syndrome produce interferon-gamma in response to stimulation with the ganglioside GM1
Publisher: Elsevier BV
Date: 04-2010
DOI: 10.1016/J.JOCN.2009.07.096
Abstract: Guillain-Barré syndrome (GBS) is an acquired demyelinating neuropathy, characterized by infiltration of peripheral nerves with macrophages and T cells. There have been reports of antibodies to glycolipids in GBS. We have previously found T cell reactivity to glycolipids in patients with the demyelinating form of GBS. This study was performed to characterize the cytokines produced by these T cells. Peripheral blood lymphocytes from patients with GBS, chronic inflammatory demyelinating polyradiculoneuropathy, healthy control patients and other neuropathies were incubated with the ganglioside GM1 and transferred to enzyme-linked immunospot plates. The average number per well of spot-forming cells (SFC) in the absence of antigen was counted. The average spontaneous SFC number was subtracted from the average SFC number in the presence of GM1, to produce a corrected SFC. There was significantly increased production of interferon-gamma but not interleukin-5 in response to stimulation with the ganglioside GM1. This could indicate that SFC have a role in pathogenesis of disease.
Elastic stiffness of straight-sided triangular finite elements by analytical and numerical integration
Publisher: Wiley
Date: 03-2009
DOI: 10.1002/CNM.1124
One-dimensional consolidation theories for layered soil and coupled and uncoupled solutions by the finite-element method
Publisher: Thomas Telford Ltd.
Date: 09-2010
Abstract: One-dimensional consolidation theories for layered soil have been re-examined. Coupled (settlement and excess pore pressure), uncoupled (excess pore pressure only) and the classical Terzaghi equation are solved by the finite-element method. By accounting only for changes in the coefficient of consolidation (c v ), the classical Terzaghi approach is unable to satisfy the flow continuity conditions at the interface between layers.
Observations on FORM in a simple geomechanics example
Publisher: Elsevier BV
Date: 2011
Observations on Return Mapping Algorithms for Piecewise Linear Yield Criteria
Publisher: American Society of Civil Engineers (ASCE)
Date: 07-2008
System Reliability of Slopes by RFEM
Publisher: Elsevier BV
Date: 06-2010
DOI: 10.3208/SANDF.50.343
Front Matter
Publisher: American Society of Civil Engineers
Date: 06-2017
On the reliability of earth slopes in three dimensions
Publisher: The Royal Society
Date: 29-07-2009
Abstract: The paper investigates the probability of failure of two-dimensional and three-dimensional slopes using the random finite-element method (RFEM). In this context, RFEM combines elastoplastic finite-element algorithms with random field theory in a Monte Carlo framework. Full account is taken of local averaging and variance reduction over each element, and an exponentially decaying (Markov) spatial correlation function is incorporated. It is found that two-dimensional probabilistic analysis, which implicitly assumes perfect spatial correlation in the out-of-plane direction, may underestimate the probability of failure of slopes.
Homogenization of geomaterials containing voids by random fields and finite elements
Publisher: Elsevier BV
Date: 07-2012
Closure to “Probabilistic Analysis of Coupled Soil Consolidation” by Jinsong Huang, D. V. Griffiths, and Gordon A. Fenton
Publisher: American Society of Civil Engineers (ASCE)
Date: 09-2011
Return Mapping Algorithms and Stress Predictors for Failure Analysis in Geomechanics
Publisher: American Society of Civil Engineers (ASCE)
Date: 04-2009
Probabilistic and Deterministic Slope Stability Analysis by Random Finite Elements
Publisher: American Society of Civil Engineers
Date: 27-10-2010
DOI: 10.1061/41144(391)9
Front Matter
Publisher: American Society of Civil Engineers
Date: 06-2017
Determining an appropriate finite element size for modelling the strength of undrained random soils
Publisher: Elsevier BV
Date: 09-2015
Discussion: Towards reliable and effective site investigations
Publisher: Thomas Telford Ltd.
Date: 10-2005
Characterizing Natural-Fracture Permeability From Mud-Loss Data
Publisher: Society of Petroleum Engineers (SPE)
Date: 27-10-2010
DOI: 10.2118/139592-PA
Abstract: Liétard et al. (1999, 2002) have provided important insight into the mechanism and prediction of transient-state radial mud invasion in the near-wellbore region. They provided type curves describing mud-loss volume vs. time that allow the hydraulic width of natural fractures to be estimated through a curve-matching technique. This paper describes a simpler and more direct method for estimating the hydraulic width by the solution of a cubic equation, with input parameters given by the well radius rw, the overpressure ratio Δp/τy, and the maximum mud loss volume (Vm)max.
Preface
Publisher: American Society of Civil Engineers
Date: 06-2017
Related Organisations
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View Funded ActivityARC Centres Of Excellence - Grant ID: CE1101009
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View Funded ActivityLinkage - International - Grant ID: LX0667328
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View Funded ActivityDiscovery Projects - Grant ID: DP210101122
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