Search Results - "Kwok, Chung Yee"

Modeling hydraulic fracturing in jointed shale formation with the use of fully coupled discrete element method by Kwok, Chung-Yee, Duan, Kang, Pierce, Matthew

“…During a hydraulic fracturing treatment, sedimentary beddings and preexisting joints in the shale reservoir may cause the deviation of fractures and the…”
Get full text

Structural degradation of sands during cyclic liquefaction: Insight from DEM simulations by Huang, Xin, Hanley, Kevin J., Zhang, Zixin, Kwok, Chung-yee

“…The macro stress–strain responses of sands are closely related to the evolution of the force transmission network. In this paper, variations of the mechanical…”
Get full text

DEM analysis of the onset of flow deformation of sands: linking monotonic and cyclic undrained behaviours by Huang, Xin, Kwok, Chung-yee, Hanley, Kevin J., Zhang, Zixin

“…This study explores the link between the monotonic and cyclic undrained behaviour of sands using the discrete element method (DEM). It is shown that DEM can…”
Get full text

Implementation of rotational resistance models＇ A critical appraisal by Huang, Xin, Hanley, Kevin J., O’Sullivan, Catherine, Kwok, Chung-Yee

“…Contact models that simulate rotational resistance at particle contacts have been proposed as a means to capture the effect of shape in DEM simulations. This…”
Get full text

Partition of the contact force network obtained in discrete element simulations of element tests by Huang, Xin, O’Sullivan, Catherine, Hanley, Kevin J., Kwok, Chung-Yee

“…The transmission of stress within a granular material composed of rigid spheres is explored using the discrete element method. The contribution of contacts to…”
Get full text

Exploring the influence of interparticle friction on critical state behaviour using DEM by Huang, Xin, Hanley, Kevin J., O'Sullivan, Catherine, Kwok, Chung Yee

“…SUMMARY Understanding the extent to which discrete element method (DEM) simulations can capture the critical state characteristics of granular materials is…”
Get full text

On the initiation, propagation and reorientation of simultaneously-induced multiple hydraulic fractures by Duan, Kang, Kwok, Chung Yee, Zhang, Qiangyong, Shang, Junlong

“…This study aims to uncover the growth characteristics of simultaneously-induced multiple hydraulic fractures using the discrete element method. We evaluate the…”
Get full text

Engineering behaviour of in situ cored deep cement mixed marine deposits subjected to undrained and drained shearing by Wei Li, Chung Yee Kwok

“…The deep cement mixing (DCM) is used to improve the capacity and reduce the settlement of the soft ground by forming cemented clay columns. The investigation…”
Get full text

Structural behavior of segmental tunnel linings for a large stormwater storage tunnel: Insight from full-scale loading tests by Huang, Xin, Liu, Wei, Zhang, Zixin, Zhuang, Qianwei, Zhu, Yanfei, Wang, Qi, Kwok, Chung-yee, Wang, Shuaifeng

“…•Full-scale loading tests are performed for a stormwater storage tunnel.•Water inflow and drainage cycles are simulated.•Evolution of internal forces and…”
Get full text

Modeling the orientation- and stress-dependent permeability of anisotropic rock with particle-based discrete element method by Duan, Kang, Li, Xuejian, Kwok, Chung-Yee, Zhang, Qiangyong, Wang, Luchao

“…A novel physics-based numerical model is proposed to simulate the orientation and effective confining pressure dependent permeability of anisotropic rock. In…”
Get full text

Interlinking BIM and GIS data for a semantic pedestrian network and applications in high-density cities by Dao, Jicao, Ng, S. Thomas, Kwok, Chung Yee

“…In high-density cities, pedestrians frequently traverse many publicly accessible indoor spaces, such as metro stations and footbridges, which seamlessly…”
Get full text

Jamming transition and emergence of fracturing in wet granular media by Meng, Yue, Primkulov, Bauyrzhan K., Yang, Zhibing, Kwok, Chung Yee, Juanes, Ruben

“…We study fluid-induced deformation of granular media, and the fundamental role of capillarity and wettability on the emergence of fracture patterns. We develop…”
Get full text

The role of fluid viscosity in an immersed granular collapse by Yang, Geng Chao, Kwok, Chung Yee, Sobral, Yuri Dumaresq

“…Instabilities of immersed slopes and cliffs can lead to catastrophic events that involve a sudden release of huge soil mass. The scaled deposit height and…”
Get full text

Size effects on crystalline rock masses: Insights from grain-based DEM modeling by Sun, Yuan, Kwok, Chung Yee, Duan, Kang

“…This study aims to investigate size effects on the strength and cracking patterns of crystalline rocks with artificial flaws which are commonly used to…”
Get full text

Thermal effect on long-term behaviors of rocks: A DEM study by Sun, Yuan, Kwok, Chung Yee, Duan, Kang

“…Radioactive waste generates prolonged heating of surrounding rock in nuclear waste repositories, potentially causing continuous growth of cracks. To ensure the…”
Get full text

DEM Simulation of Creep in One-Dimensional Compression of Crushable Sand by Liu, Su, Wang, Jianfeng, Kwok, Chung Yee

“…AbstractParticle-scale mechanisms that control the static creep behavior of crushable sands are not well understood. In this context, this study examines the…”
Get full text

Discrete element modelling of stress-induced instability of directional drilling boreholes in anisotropic rock by Duan, Kang, Wu, Wei, Kwok, Chung Yee

“…Directional drilling is a viable and cost-effective trenchless technology for the installation of pipelines and conduits in shallow formations and the…”
Get full text

Unloading-induced failure of brittle rock and implications for excavation-induced strain burst by Duan, Kang, Ji, Yinlin, Wu, Wei, Kwok, Chung Yee

“…Understanding the unloading-induced failure characteristics of brittle rock is essential for predicting excavation-induced strain burst. We conduct both the…”
Get full text

Rate effect of rocks: Insights from DEM modeling by Sun, Yuan, Kwok, Chung Yee, Duan, Kang

“…Rocks are subjected to different loading rates at different construction stages and engineering applications. The strength of rock usually increases with…”
Get full text

DEM modeling of hydraulic fracturing in permeable rock: influence of viscosity, injection rate and in situ states by Duan, Kang, Kwok, Chung Yee, Wu, Wei, Jing, Lu

“…Hydraulic fracturing in permeable rock is a complicated process which might be influenced by various factors including the operational parameters (e.g., fluid…”
Get full text