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J. Shen | C.F. Chiu | C.W.W. Ng | G.H. Lei | J. Xu
Methane hydrate exists in the pores of methane hydrate-bearing sand (MHBS) and is considered to be a potentially significant source of methane and thus energy for mankind. However, before conducting...
Probabilistic analysis of a coal mine roadway including correlation control between model input parameters
Andrew J. Booth | Alec M. Marshall | Rod Stace
Probabilistic analysis and numerical modelling techniques have been combined to analyse a deep coal mine roadway. Using the Monte Carlo method, a correlation control algorithm and a FLAC 2D finite difference...
Juan M. Mayoral | Juan M. Pestana | Raymond B. Seed
Series of multi-directional pot tests were conducted in soft clay to characterize the near field soil response during multi-directional soil–pile interaction (Mayoral et al. [19,22]). This experimental...
F. Zhang | Y.F. Gao | D. Leshchinsky | D.S. Zhu | G.H. Lei
The common procedures for stability analysis of slurry-supported trenches are typically two-dimensional (plane strain), despite the fact that observed failures in the field possess three-dimensional...
J. Zhang | H.W. Huang
For a slope with a large number of potential slip surfaces, the consequence of slope failure along different slip surfaces could be quite different. When the soil parameters are uncertain, the location...
A. Shoarian Sattari | N.K. Toker
Soil–water characteristic curve (SWCC) is widely used for obtaining mechanical and hydraulic properties of unsaturated soils, such as shear strength, deformation, permeability, and flow. An innovative...
A viscoplastic approach for pore collapse in saturated soft rocks using REDBACK: An open-source parallel simulator for Rock mEchanics with Dissipative feedBACKs
Thomas Poulet | Manolis Veveakis
Numerical simulators have become indispensable in geomechanics to model increasingly more complex rock behaviours by harnessing the growing computational power available. Those tools aim at simulating...
In foundation engineering practice, pile driving is often used as an efficient method to install piles. While large distortions take place along the pile shaft during the installation, the zone around...
Thanh Vo | Adrian R. Russell
The bearing capacity of strip footings on unsaturated soils is studied using slip line theory. The suction profiles considered are non-uniform with depth and correspond to vertical flow of water by...
Qinqin Guo | Liang Pei | Zhengjun Zhou | Jiankang Chen | Fuhai Yao
High core rockfill dams exhibit complex deformation mechanisms because of complicated geological conditions, many material partitions and severe weather conditions. When realistic parameters cannot...
A generalized surrogate response aided-subset simulation approach for efficient geotechnical reliability-based design
Dian-Qing Li | Ke-Bo Shao | Zi-Jun Cao | Xiao-Song Tang | Kok-Kwang Phoon
This paper aims to develop an efficient geotechnical reliability-based design (RBD) approach using Monte Carlo simulation (MCS). The proposed approach combines a recently developed MCS-based RBD approach,...
Analytical solution to axisymmetric consolidation in unsaturated soils with linearly depth-dependent initial conditions
Liem Ho | Behzad Fatahi | Hadi Khabbaz
This paper introduces an analytical solution for the axisymmetric consolidation of unsaturated soils subjected to constant external loading. The analytical procedure employs variables separation and...
Ali Fakhimi | Omid Hosseini | Roosevelt Theodore
Strain burst is a spontaneous dynamic failure of rock that can cause serious injury to the miners and damage to the underground excavations. To simulate the strain burst in the lab, a steel beam was...
Wei Chen | Heinz Konietzky | Xin Tan | Thomas Frühwirt
In this study pre-failure damage characteristics are investigated by conducting a series of conventional triaxial compression tests and corresponding numerical simulations for granite from Kirchberg...
Halil Murat Algin
The use of jet grouting as a foundation supporting element has brought about the need to define the design strategies for jet-grouted raft (JGR) system which differs from the traditional raft design...
Wenping Gong | C. Hsein Juang | Sara Khoshnevisan | Kok-Kwang Phoon
LRFD (Load and Resistance Factor Design) is becoming a design method of choice in geotechnical practice, in lieu of the factor of safety (FS)-based design approach. However, even with LRFD, the need...
Andrew M. Druckrey | Khalid A. Alshibli | Riyadh I. Al-Raoush
Particle morphology, orientation, and contact configuration play a significant role in the engineering properties of granular materials. Accurate three-dimensional (3D) characterization of these parameters...
Influence of crack surface friction on crack initiation and propagation: A numerical investigation based on extended finite element method
Yousheng Xie | Ping Cao | Jie Liu | Liwei Dong
Rock strengths are directly influenced by the open or closed flaws widely distributed in rock masses. Extensive studies have been conducted on the propagations of open flaws in rocks. However, few concerns...
Abolfazl Abdollahipour | Mohammad Fatehi Marji | Alireza Yarahmadi Bafghi | Javad Gholamnejad
Rocks are naturally filled with cracks and pores that are saturated with one or more fluid phases. Many problems in rock mechanics, petroleum engineering, geophysics, etc. deal with cracks and discontinuities...
Discussion on “Bearing capacity of circular footings over rock mass by using axisymmetric quasi lower bound finite element limit analysis” by Manash Chakraborty and Jyant Kumar [Comput. Geotech. 70 (2015) 138–149]
Jinsong Huang | Richard Kelly | Dianqinq Li | Chuangbing Zhou | Scott Sloan
Pile load tests are used to refine designs and for quality assurance. They can also be used to verify the reliability of piles and pile groups. Stochastic methods have previously been developed to verify...
Quan Jiang | Xiating Feng | Yanhua Gong | Leibo Song | Shuguang Ran | Jie Cui
In order to overcome the deficiency of natural joint specimens with the same surface morphology for experimental studies, we present a technical method for replicating natural joint specimens that incorporates...
Reply to Discussion on “Bearing capacity of circular footings over rock mass by using axisymmetric quasi lower bound finite element limit analysis” [Comput. Geotech. 70 (2015) 138–149]
Manash Chakraborty | Jyant Kumar
A discussion has been provided for the comments raised by the discusser (Clausen, 2015)  on the article recently published by the authors (Chakraborty and Kumar, 2015). The effect of exponent α for...
Tuan-Nghia Do | Chang-Yu Ou | Ren-Peng Chen
In this study, four failure mechanisms of excavations were investigated using the finite element method (FEM) with reduced shear strength. Center posts were considered in this finite element model....
Luca Comegna | Guido Rianna | Su-Gon Lee | Luciano Picarelli
Some Authors highlight the hysteretic response to wetting of unsaturated soils, showing that the operative SWCC may significantly diverge from the one usually adopted in conventional approaches. Accounting...
An analytical solution for excited pile vibrations with variable section impedance in the time domain and its engineering application
Liu Gao | Kuihua Wang | Si Xiao | Zhenya Li | Juntao Wu
Through pile defect generalization, a definite solution to the problem of longitudinal vibrations in a finite pile lying on an elastic stratum with variable section impedance is established using the...
Chang-Sheng Li | Dan Zhang | Sha-Sha Du | Bin Shi
The fabric of gravels can significantly affect the characteristics of deformation, stress field and failure of soil–rock mixture. The computed tomography (CT) was used to obtain the shape and location...
Kang-He Xie | Chang-Qing Xia | Ran An | An-Feng Hu | Wei-Peng Zhang
The governing equations for the one-dimensional consolidation of double-layered structured soils under time-dependent loading are established in this paper. Using simplified k–σ′ and mv–σ′ models, the...
Rui Rui | Frits van Tol | Xiao-Long Xia | Suzanne van Eekelen | Gang Hu | Yuan-you Xia
A series of model tests were performed using a 2D multiple trapdoor system, similar to a 2D unreinforced piled embankment. Three soil arching evolution patterns were observed in the tests: the triangular...
Mohammad Rezania | Mahdi Taiebat | Elisa Poletti
This paper focuses on constitutive and numerical modeling of strain-rate dependency in natural clays while also accounting for anisotropy and destructuration. For this purpose the SANICLAY model that...
Junxing Zheng | Roman D. Hryciw
Image-based soil particle size and shape characterization relies on computer methods to process and analyze the images. For contacting particles spread on a flat surface this requires delineation of...
Marc Lebeau | Jean-Marie Konrad
The design of convective embankments generally hinges on the use of numerical models that describe buoyancy-driven flow and heat transfer in porous media. A review of the literature reveals that most...
Matteo Oryem Ciantia | Marcos Arroyo | Joanna Butlanska | Antonio Gens
A three-dimensional discrete element model is used to investigate the effect of grain crushing on the tip resistance measured by cone penetration tests (CPT) in calibration chambers. To do that a discrete...
Strength prediction of dry and saturated brittle rocks by unilateral damage-friction coupling analyses
Crack growth and frictional sliding are two essential dissipative mechanisms that govern nonlinear mechanical behaviors of brittle rocks. Usually, unilateral contact as well as damage-friction coupling...
Ionuţ Dragoş Moldovan | António Gomes Correia | Cláudio Pereira
Bender elements are shear wave transducers, widely used for the experimental identification of the small-strain shear moduli of geomaterials. They offer good coupling with the sample and controllable...
Annamaria Cividini | Giancarlo Gioda
Two finite element approaches are discussed for the analysis of the coupled problems of seepage and deformation of saturated porous media in the presence of an acceleration field varying in time and...
Z. Shen | X. Feng | S. Gourvenec
Undrained capacity of strip and circular surface foundations with a zero-tension interface on a deposit with varying degrees of strength heterogeneity is investigated by finite element analyses. The...
N.T.V. Phuong | A.F. van Tol | A.S.K. Elkadi | A. Rohe
The installation of displacement piles in sand leads to severe changes in the stress state, density and soil properties around the pile tip and shaft, and therefore has a significant influence on the...
Dian-Qing Li | Xiao-Hui Qi | Zi-Jun Cao | Xiao-Song Tang | Kok-Kwang Phoon | Chuang-Bing Zhou
Geological uncertainty appears in the form of one soil layer embedded in another or the inclusion of pockets of different soil type within a more uniform soil mass. Uncertainty in factor of safety (FS)...
Anisotropically elasto-plastic solution to undrained cylindrical cavity expansion in K0-consolidated clay
Lin Li | Jingpei Li | De’an Sun
This paper presents an anisotropically elasto-plastic solution to the undrained expansion of a cylindrical cavity in K0-consolidated clay. The elasto-plastic constitutive relationship following the...
Sara Rios | Matteo Ciantia | Nubia Gonzalez | Marcos Arroyo | António Viana da Fonseca
Using realistic constitutive models for artificially cemented soils is advantageous in design. However, the price of that increased realism is often a more elaborate model, which is difficult to calibrate....
M. Vitel | A. Rouabhi | M. Tijani | F. Guérin
Natural or induced groundwater flow may negatively influence the performance of artificial ground freezing: high water flow velocities can prevent frozen conditions from developing. Reliable models...
Bipin K. Gupta | Dipanjan Basu
A new method for calculation of head displacement and rotation of laterally loaded rigid monopiles and poles in multilayered heterogeneous elastic soil is presented. The analysis considers the soil...
Numerical study of the response of a group of energy piles under different combinations of thermo-mechanical loads
Alice Di Donna | Alessandro F. Rotta Loria | Lyesse Laloui
Energy piles are rapidly gaining acceptance around the world because they represent a renewable and clean source of energy that can be used for the heating and cooling of buildings, and the de-icing...
Marcin Witek | Stanisław Prusek
This article presents the results and analyses of numerical calculations and laboratory tests performed on a two-legged shield support. The shield was placed on a special device (hydraulic cushion)...
Fabio Tradigo | Federico Pisanò | Claudio di Prisco
Piled rafts (PRs) are widely employed to provide the foundations of high-rise buildings with both large bearing capacity and satisfactory settlement performances. In recent years, at variance with standard...
Sam Stanier | Jelke Dijkstra | Danuta Leśniewska | James Hambleton | David White | David Muir Wood
Some reported analyses of images of deforming granular materials have generated surprising vermiculate strain features which are difficult to reconcile with the mechanics of deformation of granular...
J. Hubert | X.F. Liu | F. Collin
This paper presents a thermo-hydro-biochemo-mechanical model for simulating the long term behavior of Municipal Solid Waste (MSW) in a bioreactor landfill, in which the multi-physics coupling mechanism...
Y. Li | J. Oh | R. Mitra | B. Hebblewhite
This paper presents a joint constitutive model that considers separately the mechanical contribution of waviness and unevenness of a joint to shear behaviour. The critical asperities for waviness and...