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Faculty
Charles W.W. NG (吳宏偉) PhD , University of Bristol

Chair Professor
Changjiang Scholar 長江學者講座教授
Director of Geotechnical Centrifuge Facility
Associate Editor, Canadian Geotechnical Journal
Board Member of ISSMGE
Email: cecwwng@ust.hk
RESEARCH INTERESTS:

Centrifuge and numerical modeling of two and three dimensional soil-structure interaction problems such as tunnels, deep excavation, piles and soil nailing; slope stability; transient seepage, static and cyclic behavior of unsaturated soils.

RESEARCH PROJECTS:

 
Green and Geo-environmental Engineering Projects
  • 973-project: Fundamental investigation of sustainable and preventive measures for controlling environmental hazards induced by municipal solid waste landfill
  • Centrifuge modelling of migration of heavy metal in unsaturated consolidating dredgings (NSFC)
  • Green slope engineering for Hong Kong
Material Behaviour and Fundamental Mechanisms
  • Fundamental Behaviour of Unsaturated Expansive Soils
  • Fundamental Behaviour of Shanghai Soft Clay including Small-strain Stiffness
  • Small-strain Anisotropic Stiffness of Unsaturated Soil
  • Investigation of Slope Instability in Unsaturated Expansive Soils
  • Study of Rainfall Infiltration Mechanisms and Stability of Slopes in Hong Kong
  • Research and Development of Preservation Technology for Cultural Relics at Dunhuang and the Silk Road
  • Centrifuge Modelling of the Influence of Four Types of Fault Movements on Ground Deformations
 Soil-Structure Interaction Problems 
  • Three-dimensional Centrifuge Modelling of Perpendicularly Crossing Twin Tunnel Interactions in Soft Ground
  • Three-dimensional Centrifuge Modelling of Tunnelling Effects on Pile Groups in Soft Ground
  • Mechanisms and Predictions of Deformation due to Deep Excavation
  • Centrifuge Modelling of CDG Fill Slopes Reinforced with Different Nail Heads and Nail Inclinations
  • Centrifuge Modelling of Tunnelling Effects on Dykes
  • Centrifuge Modelling of Different Slope Reinforced Schemes for the North-South Water Transfer Project
  • Centrifuge Modelling of Excavation Effects on Pile Behaviour
  • Settlement of Pile foundations Subjected to Static and Dynamic Loadings in Soft Clay
  • Performance of Stone Column Supported Embankment Subjected to Railway Loadings
  • Tunelling-induced Ground Movement Effects on Pipelines
 
SELECTED PUBLICATIONS:
  • Ng, C. W.W, Hong, Y., Liu, G.B. & Liu, T. (2012). Ground deformations and soil-structure interaction of a multi-propped excavation in Shanghai soft clays. Géotechnique.  In Press.
  • Ng, C.W.W., Cai, Q.P. & Hu, P. (2012). Centrifuge and numerical modeling of normal fault rupture propagation in clay bed with and without a pre-existing fracture. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Accepted.
  • Wong, K. S., Ng, C. W. W., Chen, Y.M. & Bian, X.C. (2012). Centrifuge and numerical investigation of passive failure of tunnel face in sand. Tunnelling and Underground Space Technology. Accepted.
  • Ng, C. W.W., Lai, C.H. & Chiu, C.F. (2012). A Modified Triaxial Apparatus for Measuring the Stress-Path Dependent Water Retention Curve. Geotechnical Testing Journal, ASTM. In Press.
  • Ng, C.W.W. & Xu, J. (2012). Effects of current suction ratio and recent suction history on small strain behaviour of an unsaturated soil.Canadian Geotechnical Journal.  Vol. 49, No. 2, 226-243.
  • Ng, C.W.W. & Leung, A. K. (2012). Measurements of drying and wetting permeability function using a new stress-controllable soil column. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 138, No. 1, 58-68.
  • So, A. K. O. & Ng, C. W. W. (2011). Dynamic Soil Parameters and Case Damping for High Capacity Long H-Piles. Canadian Geotechnical Journal. Vol. 48, No. 11, 1616-1629.
  • Leung, A. K, Sun, H. W., Millis, S. Pappin, J., Ng, C. W. W. & Wong, H. N. (2011). Field monitoring of an unsaturated saprolitic hillslope. Canadian Geotechnical Journal. Vol. 48, No. 3, 339-353.
  • Ng, C. W. W., Wong, H. N. Tse, Y. M., Pappin, J., Sun, H. W. , Millis, S. & Leung, A. K. (2011).  A Field Study of Stress-Dependent Soil-Water Characteristic Curves and Permeability of a Saprolitic Slope in Hong Kong. Géotechnique. Vol. 61, No.6, 511-521.
  • Wang, Y., Shi, J.W. & Ng, C. W. W. (2011).Numerical Modeling of Tunneling Effect on Buried Pipelines. Canadian Geotechnical Journal, Vol. 48, No. 7, 1125-1137.
  • Zhou, G.G.D. & Ng, C. W.W. (2010). Numerical investigation of reverse segregation in debris flows by DEM. Granular Matter, Vol. 12, No.5, 507-516.
  • Zhou, G.G.D. & Ng, C. W.W. (2010). Dimensional analysis of natural debris flows. Canadian Geotechnical Journal. Vol. 47, No. 7, 719-729.
  • Ng, C. W. W., Xu, J. & Yung S.Y. (2009). Effects of wetting-drying and stress ratio on anisotropic very small strain stiffness of an unsaturated soil. Canadian Geotechnical Journal. Vol. 46, No. 9, 1062-1076.
  • So, A. K. O. & Ng, C. W. W. (2009). Performance of long driven H-piles in granitic saprolite. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 135, No. 2, 246-258.
  • Lam, S.Y., Ng, C. W.W., Leung, C.F. & Chan, S.H. (2009). Centrifuge and numerical modeling of axial load effects on piles and pile groups in consolidating ground. Canadian Geotechnical Journal. Vol. 46,No.1, 10-24.
  • Alonso, E.E., Ng, C.W.W. & Springman, S.M. (2008). Monitoring large scale tests for nuclear waste disposal. Journal of Geological and Geotechnical Engineering. Vol.26(6), 817-826.
  • Ng, C.W.W., Poulos, H.G., Chan, V. S.H., Lam, S.S.Y. and Chan, G.C.Y. (2008). Effects of tip location and shielding on piles in consolidating ground. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 134, No. 9, 1245-1260.
  • Ng, C.W.W. & Yung, S.Y. (2008). Determination of the anisotropic shear stiffness of an unsaturated decomposed soil. Géotechnique.  Vol. 58, No. 1, 23-35.
  • Ng, C. W.W. , Cui, Y., Chen, R. and Delage, P. (2007). The axis-translation and osmotic techniques in shear testing of unsaturated soils: a comparison. Soils and Foundations, Vol. 47, No.4, 675-684.
  • Ng, C. W. W. & Leung, E. H. Y. (2007). Determination of shear wave velocities and shear moduli of completely decomposed tuff. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 133, No. 6, 630-640.
  • Zhan, L.T., Ng, C. W.W. & Fredlund, D.G. (2007).Field study of rainfall infiltration into a grassed unsaturated expansive soil slope. Canadian Geotechnical Journal. Vol.44,No.4, 392-408. Recipient of the R M Quigley Honourable Mention by the National Research Council, Canada (NRC).
  • Leung, E. H. Y. & Ng, C. W. W. (2007). Wall and ground movements associated with deep excavations supported by cast-in-situ wall in mixed ground conditions. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 133, No.2, 129-143.
  • Zhang, L.M., Ng, C.W.W., Chan, F. & Pang, H.W. (2006). Termination criteria for jacked pile construction in weathered soils. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 132, No.7, 819-829.
  • Cheuk, C.Y., Ng, C. W.W. & Sun, H.W. (2005). Numerical Analysis of Soil Nails in Loose Fill Slopes Subjected to Rainfall Infiltration Effects. Computers and Geotechnics. Vol. 32, 290-303.
  • Wang, Z. W., Ng, C. W. W. & Liu, G. B. (2005). Characteristics of wall deflections and ground surface settlements in Shanghai. Canadian Geotechnical Journal. Vol. 42, No.5, 1243-1254.
  • Liu, G. B., Ng, C. W. W. & Wang, Z.W. (2005). Observed Performance of a Deep Multi-strutted Excavation in Shanghai soft clays. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 131, No. 8, 1004-1013.
  • Wang, Y. & Ng, C.W.W. (2005). Effects of Stress Paths on the Small-strain Stiffness of Completely Decomposed Granite. Canadian Geotechnical Journal.  Vol. 42, No.4, 1200-1211.
  • Ng, C.W.W. & Lee, G. T.K. (2005). Three Dimensional Ground Settlements and Stress Transfer Mechanisms due to Open Face Tunnelling. Canadian Geotechnical Journal. Vol. 42, No.4, 1015-1029.
  • Lee, G. T.K. & Ng, C.W.W. (2005). The Effects of Advancing Open Face Tunneling on an Existing Loaded Pile. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 131, No. 2. 193-201.
  • Ng, C. W.W., Li, X.S., Van Laak, P.A. & Hou, Y. J. (2004). Centrifuge Modeling of Loose Fill Embankment Subjected to Uni-axial and Bi-axial Earthquakes. Journal of Soil Dynamics and Earthquake Engineering. Vol. 24, No. 4, 305-318.
  • Ng, C. W. W., Lee, K.M. & Tang, D. K.W.(2004).3D Numerical Investigations of NATM Twin Tunnel Interactions. Canadian Geotechnical Journal.Vol. 41, No. 3, 523-539.
  • Lee, C.J. & Ng, C.W.W. (2004). Development of downdrag on piles and pile groups in consolidating soil. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 130, No. 9. 905-914.
  • Ng, C.W.W., Leung, E.H.Y. & Lau, C. K. (2004). Inherent anisotropic stiffness of weathered geomaterial and its influence on ground deformations. Canadian Geotechnical Journal. Vol. 41. No. 1. 12-24.
  • Ng, C.W.W., Fung, W.T., Cheuk, C.Y. & Zhang, L.M. (2004). Influence of stress ratio and stress path on behaviour of loose decomposed granite. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 130, No. 1. 36-44.
  • Chiu,C.F. & Ng, C. W.W. (2003). A state-dependent elasto-plastic model for saturated and unsaturated soils. Géotechnique.Vol. 53, No. 9, 809-829.
  • Ng, C. W. W. & Lei, G.H. (2003). An explicit analytical solution for calculating horizontal stress changes and displacements around an excavated diaphragm wall panel. Canadian Geotechnical Journal. Vol. 40, No. 4. 780-792.
  • Ng, C. W.W., Zhan, L.T., Bao, C.G., Fredlund, D.G. & Gong, B.W. (2003). Performance of an unsaturated expansive soil slope subjected to artificial rainfall infiltration. Géotechnique. Vol. 53, No. 2, 143-157.
  • Ng, C. W. W. & Lei, G. H. (2003). Performance of long rectangular barrettes in granitic saprolites. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 129, No. 8. 685-696.
  • Ng, C.W.W & Chiu, C.F. (2003). Laboratory study of loose saturated and unsaturated decomposed granitic soil. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 129, No. 6. 550-559.
  • Ng, C. W. W. & Lee, G. T. K. (2002). A three-dimensional parametric study of the use of soil nails for stabilising tunnel faces. Computers and Geotechnics. Vol. 29, No. 8, 673-697.
  • Ng, C.W.W., Zhan, L.T. & Cui, Y.J. (2002). A new simple system for measuring volume changes in unsaturated soils. Canadian Geotechnical Journal. Vol. 39, No. 3, 757-764.
  • Ng, C.W.W. & Chiu, C.F. (2001). Behaviour of a loosely compacted unsaturated volcanic soil. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 127, No.12, 1027-1036.
  • Ng, C.W.W., Wang, B. & Tung, Y.K. (2001). 3D numerical investigations of groundwater responses in an unsaturated slope subjected to various rainfall patterns. Canadian Geotechnical Journal, Vol. 38, No.5,1049-1062.
  • Ng, C. W. W., Li, J. H. M. & Yau, T. L. Y. (2001). Behaviour of Large Diameter Floating Bored Piles in Saprolitic Soils. Soils and Foundations, Vol. 41, No.6. 37-52.
  • Ng, C. W.W. Zhang, L.M. & Nip, D.C.N. (2001). Response of Laterally Loaded Large-Diameter Bored Pile Groups. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 127, No.8. 658-669.
  • Zhang, L.M., Tang, W.H. & Ng, C.W.W. (2001). Reliability of axially loaded driven pile groups. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 127, No.12, 1051-1060.
  • Lei,G. H., Ng C. W. W. & Rigby, D. (2001). Stress and displacement around an elastic artificial rectangular hole. Journal of Engineering Mechanics, ASCE. Vol. 127, No.9, 880-890.
  • Ng, C. W. W. & Wang, Y. (2001). Field and Laboratory Measurements of Small Strain Stiffness of Decomposed Granites. Soils and Foundations, Vol. 41, No. 3, 57-71.
  • Ng, C.W.W. & Zhang, L.M. (2001). Three-dimensional analysis of performance of laterally loaded sleeved piles in slope ground. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 127, No.6, 499-509.
  • Ng, C.W.W., Yau, T.L.Y., Li, J.H.M. & Tang, W.H. (2001).New failure load criterion for large diameter bored piles in weathered geomaterials. Journal of Geotechnical and Geoenvironmental Engineering, ASCE. Vol. 127, No.6. 488-498.
  • Guan, P., Ng, C.W.W., Sun, M. & Tang, W.H. (2001). Weathering indices for rhyolitic tuff and granite in Hong Kong. Engineering Geology, Vol. 59, No.1-2,147-159.
  • Ng, C.W.W., Guan, P. & Shang, Y.J. (2001). Weathering mechanisms and indices of igneous rocks of Hong Kong. Quarterly Journal of Engineering Geology and Hydrology, Vol. 34, No. 2, 133-151.
  • Ng, C.W.W. & Pang, Y.W. (2000). Experimental investigation of soil-water characteristics of a volcanic soil. Canadian Geotechnical Journal, Vol. 37, No. 6, 1252-1264.
  • Ng, C.W.W. , Pun, W.K. & Pang, R. P. L. (2000). Small strain stiffness of natural granitic saprolites in Hong Kong. Journal of Geotechnical and Geo-environmentalEngineering, ASCE. Vol. 126, No. 9. 819-833.
  • Ng, C.W.W. & Pang, Y.W. (2000). Influence of stress state on soil-water characteristics and slope stability. Journal of Geotechnical and Geo-environmental Engineering, ASCE. Vol. 126, No. 2. 157-166.
  • Ng, C.W.W., Rigby, D., Ng, S. W.L & Lei, G. (2000). Field studies of well-instrumented barrette in Hong Kong. Journal of Geotechnical and Geo-environmental Engineering, ASCE. Vol. 126, No. 1, 60-73.
  • Ng, C.W.W. & Yan, W.M. (1999). Three-dimensional modelling of a diaphragm wall construction sequence. Géotechnique. Vol. 49, No. 6, 825-834.
  • Ng, C.W.W., Rigby, D., Lei, G. & Ng, S. W.L. (1999). Observed performance of a short diaphragm wall panel. Géotechnique. Vol. 49, No.5, 681-694.
  • Ng, C.W.W. (1999). Stress paths in relation to deep excavations. Journal of Geotechnical and Geo-environmental Engineering, ASCE. Vol. 125, No. 5. 357-363.
  • Ng, C.W.W. (1998). Observed performance of multi-proppedexcavation in stiff clay. Journal of Geotechnical and Geo-environmental Engineering, ASCE, Vol. 124, No. 9, 889-905.
  • Ng, C.W.W., Springman, S.M. & Norrish, A.R.M. (1998). Centrifuge modelling of spread-base integral bridge abutments. Journal of Geotechnical and Geo-environmental Engineering, ASCE, Vol. 124, No. 5, 376-388.
  • Ng, C.W.W. & Yan, W.M. (1998). Stress transfer and deformation mechanisms around a diaphragm wall panel. Journal of Geotechnical and Geo-environmental Engineering, ASCE, Vol. 124, No. 7, 638-648.
  • Ng, C.W.W., Simpson, B., Lings, M.L. & Nash, D.F.T. (1998). Numerical analysis of a multi-propped excavation in stiff clay. Canadian Geotechnical Journal. Vol. 35, 115-130.
  • Ng, C.W.W., Springman, S.M. & Norrish, A.R.M. (1998). Soil-structure Interaction of Spread-base Integral Bridge Abutments. Soils and Foundations, Vol. 38, No. 1,145-162.
  • Ng, C.W.W. & Shi, Q. (1998). A numerical investigation of the stability of unsaturated soil slopes subjected to transient seepage. Computers and Geotechnics, Vol. 22, 1-28.
  • Ng, C.W.W. & Lings, M.L. (1995). Effects of modelling soil non-linearity and wall installation on the back-analysis of a deep excavation in stiff clay. Journal of Geotechnical Engineering, ASCE, 121, No. 10, 687-695.
  • Ng, C.W.W., Lings, M.L., Simpson, B. & Nash, D.F.T. (1995). An approximate analysis of the three-dimensional effects of diaphragm wall installation. Géotechnique, Vol. 45, No.3, 497-507.
  • Lings, M.L., Ng, C.W.W. & Nash, D.F.T. (1994). The pressure of wet concrete in diaphragm wall panels cast under bentonite. Geotechnical Engineering, Proceedings of the Institution of Civil Engineers, U.K., 107, July, 163-172.
  • Ng, C.W.W., Lings, M.L. & Nash, D.F.T. (1992). Back-analysing the bending moment in a concrete diaphragm wall. The Structural Engineer, Vol. 70, No.23/24, 421-426. Recipient of the Henry Adams Award from the Institution of Structural Engineers, U.K, for the best paper published in the journal in 1992. 
 
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