Showing papers in "Canadian Geotechnical Journal in 2018"
TL;DR: In this paper, a new approach for ground improvement of deep marine clay in which the conventional booster tube in the current air booster vacuum preloading technology was replaced by a boost was presented.
Abstract: This paper presented a new approach for ground improvement of deep marine clay in which the conventional booster tube in the current air booster vacuum preloading technology was replaced by a boost...
102 citations
TL;DR: A novel random field generator is developed, which is capable of directly generating RFSs from sparse measurements obtained during site characterization and properly accounting for uncertainty associated with interpretation of sparse data.
Abstract: Random field theory has been increasingly used in probabilistic geotechnical analyses over the past few decades, where a random field generator with random field parameters is needed to simulate ra...
100 citations
TL;DR: In this article, vehicle traffic loading appears to contribute significantly to long-term settlement beneath highways, airport runways, and metro lines in China, where wheel loading imposes cycles in both the magnitude a...
Abstract: Vehicle traffic loading appears to contribute significantly to long-term settlement beneath highways, airport runways, and metro lines in China. Wheel loading imposes cycles in both the magnitude a...
74 citations
TL;DR: In this paper, the influence of moving trajectories on ground loss ratio (GRL) due to the double-O-tube (DOT) tunnelling method was investigated, and the authors found that the influence was due to pitching, yaw and yaw trajectories.
Abstract: This paper investigates the influence of moving trajectories on ground loss ratio (GRL) due to the double-O-tube (DOT) tunnelling method. DOT tunnelling has three moving trajectories: pitching, yaw...
70 citations
TL;DR: In this article, the deformation and failure of pre-existing fissures in underground engineering are studied and the authors propose a method to understand deformation, failure and pre-stress and dynamic loads simultaneously.
Abstract: Rocks containing pre-existing fissures in underground engineering are likely to be subjected to static pre-stress and dynamic loads simultaneously. Understanding the deformation and failure mechani...
65 citations
TL;DR: In this article, the formational environment and climatic variability of granite residual soils with grain-size distribution ranging from gravel to clay undergo multiple drying-wetting cycles and the influences o...
Abstract: Due to the formational environment and climatic variability, granite residual soils with grain-size distribution ranging from gravel to clay undergo multiple drying–wetting cycles. The influences o...
60 citations
TL;DR: Combining vacuum preloading with electro-osmosis of a dredged slurry is a significantly effective technology for ground improvement as mentioned in this paper. But, despite extensive research, the mechanism of the preloading c...
Abstract: Combining vacuum preloading with electro-osmosis of a dredged slurry is a significantly effective technology for ground improvement. Despite extensive research, the mechanism of vacuum preloading c...
50 citations
TL;DR: In this article, the authors investigated the workability and microstructural characteristics of sodium hexametaphosphate (SHMP)-treated calcium bentonite (Ca-bentonite) as a potential material for soil-bedding.
Abstract: This study aims to investigate workability and microstructural characteristics of sodium hexametaphosphate (SHMP)-treated calcium bentonite (Ca-bentonite) as a potential material for soil–bentonite...
49 citations
TL;DR: The use of helical anchors has been increasing in recent years; however, the current understanding of its behaviour does not allow for reliable estimates of uplift capacity and load displacement as mentioned in this paper.
Abstract: The use of helical anchors has been increasing in recent years; however, the current understanding of its behaviour does not allow for reliable estimates of uplift capacity and load–displacement re...
47 citations
TL;DR: In the Yangtze River Delta of China, a large number of metro tunnels have been constructed in soft soils, and the excessive and differential tunnel settlement may impair the serviceability of the metro as mentioned in this paper.
Abstract: In the Yangtze River Delta of China, a large number of metro tunnels have been constructed in soft soils. The excessive and differential tunnel settlement may impair the serviceability of the metro...
41 citations
TL;DR: Microbially induced calcite precipitation (MICP) is a potentially environmentally conscious ground improvement method that can improve the engineering properties of granular soils through the preci... as mentioned in this paper,.
Abstract: Microbially induced calcite precipitation (MICP) is a potentially environmentally conscious ground improvement method that can improve the engineering properties of granular soils through the preci...
TL;DR: In this article, the pore-water pressures induced by pile driving could have a detrimental effect on a project, especially on the construction sequence and ground settlement, and measures that can effectively accele...
Abstract: Excess pore-water pressures induced by pile driving could have a detrimental effect on a project, especially on the construction sequence and ground settlement. Measures that can effectively accele...
TL;DR: In this article, a multichannel analysis of surface waves (MASW) is used to estimate shear wave velocity profiles of soil sites, which is a fast, low-cost, and environmentally friendly technique.
Abstract: Multichannel analysis of surface waves (MASW) is a fast, low-cost, and environmentally friendly technique to estimate shear wave velocity profiles of soil sites. This paper introduces a new open-so...
TL;DR: In this article, the authors proposed a ground improvement procedure for enhancing the mechanical properties of gold tailings using compaction and Portland cement addition, which are among the promising ground improvement procedures.
Abstract: Compaction and Portland cement addition are amongst promising ground improvement procedures for enhancing the mechanical properties of gold tailings. The present investigation intends to compute th...
TL;DR: A new method based on Bayesian compressive sampling (BCS) is proposed in this study, able to reconstruct a high-resolution geotechnical property profile from sparse measurement data and quantify the uncertainty, e.g., confidence interval (CI) associated with the interpreted profile.
Abstract: Limit state design, incorporated into many recent geotechnical design codes, introduces the application of partial or resistance factors to selected characteristic values. Partial or resistance fac...
TL;DR: The influence of tensile strength on the behavior of cohesionless soils is typically ignored in geotechnical engineering practice as mentioned in this paper, but the tensile cracking and subsequent failure characterist...
Abstract: The influence of tensile strength on the behaviour of cohesionless soils is typically ignored in geotechnical engineering practice. However, the tensile cracking and subsequent failure characterist...
TL;DR: Cross correlations between nominal load and resistance terms in limit state functions for geotechnical soil-structure interaction problems can be expected, and a closed-form solution for the reliabilit...
Abstract: Cross correlations between nominal load and resistance terms in limit state functions for geotechnical soil–structure interaction problems can be expected. A closed-form solution for the reliabilit...
TL;DR: In this article, the authors predict the mobility and delineating the extent of geophysical flows using runout models, and the accuracy of predictions hinges on the reliability of input parameters of runout model.
Abstract: Predicting the mobility and delineating the extent of geophysical flows remains a challenge for engineers. The accuracy of predictions hinges on the reliability of input parameters of runout models...
TL;DR: This paper compiles 126 and 23 reliable static load tests for steel H-piles in axial compression from two databases: Pile-Load Tests (PILOT) and Deep Foundation Load Test Database (DFLTD), respectively.
Abstract: To account for uncertainties of load and resistance in a more rational way, reliability-based design (RBD) concepts have been increasingly applied to design bridge foundations. One of critical elem...
TL;DR: In this paper, field tests of full-scale screw micropiles with a diameter varying from 76 to 114 mm and a length varying from 1.6 to 3 m were undertaken to investigate the axial pile capacities, load-transfer mec...
Abstract: Field tests of full-scale screw micropiles with a diameter varying from 76 to 114 mm and a length varying from 1.6 to 3 m were undertaken to investigate the axial pile capacities, load-transfer mec...
TL;DR: For geosynthetic reinforced column supported embankments (GRCSE) as discussed by the authors, lateral forces associated with lateral sliding and embankment stability often govern the acceptability of GRCSE.
Abstract: For geosynthetic reinforced column supported embankments (GRCSE) supporting a high embankment, lateral forces associated with lateral sliding and embankment stability often govern the acceptability...
TL;DR: In this paper, the authors proposed a diaphragm walls that combine load bearing ability with a ground source heat pump (GSHP) for geotechnical engineering.
Abstract: Thermo-active diaphragm walls that combine load bearing ability with a ground source heat pump (GSHP) are considered to be one of the new technologies in geotechnical engineering. Despite the vast ...
TL;DR: In this article, the active earth pressure has been calculated under dry or saturated conditions, however, in practice soils are usually unsaturated, and the results show that active earth is usually unstable.
Abstract: The calculation of active earth pressure has commonly been performed under dry or saturated conditions. However, in practice soils are usually unsaturated. With the aim of estimating active earth p...
TL;DR: In this paper, an experimental study was conducted to investigate the physical and mechanical properties of an intensely weathered mudstone from Northeast China after wetting-drying (W-D), freezing-thawing (F-T), and...
Abstract: An experimental study was conducted to investigate the physical and mechanical properties of an intensely weathered mudstone from Northeast China after wetting–drying (W–D), freezing–thawing (F–T),...
TL;DR: In this paper, a one-dimensional model for the consolidation of thawing soils is formulated in terms of large-strain consolidation and heat-transfer equations, which integrates heat transfer due to conduction.
Abstract: A one-dimensional model for the consolidation of thawing soils is formulated in terms of large-strain consolidation and heat-transfer equations. The model integrates heat transfer due to conduction...
TL;DR: In this paper, three different chilled-mirror hygrometer test procedures were developed to investigate the time-dependent unsaturated behaviour of powdered and granular bentonite based needle-punched geosynthetic plants.
Abstract: Three different chilled-mirror hygrometer test procedures were developed to investigate the time-dependent unsaturated behaviour of powdered and granular bentonite based needle-punched geosynthetic...
TL;DR: In this paper, a new design method is developed for ballasted railway track foundations that must support high-speed trains and heavy axle loads, and the proposed method is intended to prevent the two...
Abstract: In this paper, a new design method is developed for ballasted railway track foundations that must support high-speed trains and heavy axle loads. The proposed method is intended to prevent the two ...
TL;DR: In this paper, a unit cell consisting of a single stone column interacting with the surrounding soft clay is considered and clogging is assessed quantitatively and the results show that time-dependent clogging occurs.
Abstract: In this paper, time-dependent clogging is studied considering a unit cell consisting of a single stone column interacting with the surrounding soft clay. Clogging is assessed quantitatively and the...
TL;DR: In this paper, the contribution of roots is however difficult to quantify in situ without time-consuminant analysis, and root reinforcement is an important parameter to evaluate for stability analysis of rooted slopes.
Abstract: Mechanical root reinforcement is an important parameter to evaluate for stability analysis of rooted slopes. The contribution of roots is however difficult to quantify in situ without time-consumin...
TL;DR: A global intact rock database of nine parameters, including uniaxial compressive strength and Young's modulus, is compiled from 184 studies as mentioned in this paper, labeled as ROCK/9/4069.
Abstract: A global intact rock database of nine parameters, including uniaxial compressive strength and Young’s modulus, is compiled from 184 studies. This database, labeled as “ROCK/9/4069”, consists of 27....