Proceedings of the 8th International Conference on Physical Modelling in Geotechnics 2014 (ICPMG2014), Perth, Australia, 14-17 January 2014 The 8th International Conference on Physical Modelling in Geotechnics (ICPMG2014) was organised by the Centre for Offshore Foundation Systems at the University of Western Australia under the auspices of the Technical Committee 104 for Physical Modelling in Geotechnics of the International Society of Soil Mechanics and Geotechnical Engineering
The 8th International Conference on Physical Modelling in Geotechnics (ICPMG2014) was organised by the Centre for Offshore Foundation Systems at the University of Western Australia under the auspices of the Technical Committee 104 for Physical Modelling in Geotechnics of the International Society of Soil Mechanics and Geotechnical Engineering. This quadrennial conference is the traditional focal point for the physical modelling community of academics, scientists and engineers to present and exchange the latest developments on a wide range of physical modelling aspects associated with geotechnical engineering. These proceedings, together with the seven previous proceedings dating from 1988, present an inestimable collection of the technical and scientific developments and breakthroughs established over the last 25 years.
These proceedings include 10 keynote lectures from scientific leaders within the physical modelling community and 160 peer-reviewed papers from 26 countries. They are organised in 14 themes, presenting the latest developments in physical modelling technology, modelling techniques and sensors, through a wide range of soil-structure interaction problems, including shallow and deep foundations, offshore geotechnics, dams and embankments, excavations and retaining structures and slope stability. Fundamental aspects of earthquake engineering, geohazards, ground reinforcements and improvements, and soil properties and behaviour are also covered, demonstrating the increasing complexity of modelling arising from state-of-the-art technological developments and increased understanding of similitude principles. A special theme on education presents the latest developments in the use of physical modelling techniques for instructing undergraduate and postgraduate students in geotechnical engineering.
INDICE
VOLUME 1
1. Guest lectures
UWA’s O-tube facilities: Physical modelling of fluid-structure-seabed interaction
L. Cheng, H. An, C. Luo, T. Brown, S. Draper & D.J. White
Lessons learnt from centrifuge modelling of sand compaction piles and implications for design
S.M. Springman
2. Keynote lectures
Centrifuge modelling on seismic behaviour of stone architectural heritages
D.-S. Kim & H.-J. Park
Laboratory scale modelling for offshore geotechnical problems
B.W. Byrne
Principles of physical modelling of unsaturated soils
B. Caicedo & L. Thorel
Combined failure mechanisms of geotechnical structures
T. Tobita & S. Iai
Physical modelling of instability and flow in loose granular slopes
W.A. Take
Advancing geotechnical earthquake engineering knowledge through centrifuge modeling
D.W. Wilson & J.D. Allmond
Centrifuge modelling of geotechnical processes in soft ground using pragmatic approaches
X.F. Ma, Y.J. Hou, Z.Y. Cai & G.M. Xu
Foundations for offshore wind turbines
S.K. Haigh
3. Physical modelling facilities
The new GeoREF geotechnical beam centrifuge at the University of Alberta, Canada
G. Zambrano-Narvaez & R.J. Chalaturnyk
The geotechnical centrifuge facility at the University of Pretoria
S.W. Jacobsz, E.P. Kearsley & J.H.L. Kock
An 800 g-tonne geotechnical centrifuge at K-water Institute, Korea
N.R. Kim, D.S. Park, D.H. Shin & W.S. Jung
Establishing a 50 g-ton geotechnical centrifuge at the University of Sheffield
J.A. Black, N. Baker & A. Ainsworth
Development of a small scale teaching centrifuge
J.A. Black
A novel centrifuge permeameter to characterize flow through low permeability strata
W. Timms, M. Whelan, I. Acworth, D. McGeeney, S. Bouzalakos, R. Crane, J. McCartney & A. Hartland
Renovation and reoperation of a geotechnical centrifuge at the University of New Hampshire
M. Ghayoomi & S. Wadsworth
Performance of horizontal and vertical 2D shaker in IWHR centrifuge
Y.J. Hou, X.D. Zhang, Z.P. Xu, J.H. Liang & J.S. Li
Dynamic actuator for soil-structure interaction physical modelling in centrifuge
M. Cabrera, B. Caicedo & L. Thorel
Improvement of the IFSTTAR robot control system
P. Gaudicheau, L. Thorel, A. Néel, Ph. Audrain, C. Lozada & J. Monroy
Dynamic centrifuge modelling facilities at the University of Dundee and their application to studying seismic case histories
A.J. Brennan, J.A. Knappett, D. Bertalot, M. Loli, I. Anastasopoulos & M.J. Brown
Generation of progressive wave in a drum centrifuge
Z. Wang, Z. Chen & M. Luan
A compact high-speed image capture system for a drum centrifuge
S.A. Stanier, J. Breen & D.J. White
In-flight excavation using a multi-functional four-axis robotic manipulator at NHRI
G.F. Ren, G.M. Xu, Z.Y. Cai, X.W. Gu, J.Z. Hong, G.B. Ran & X.Y. Yu
Design and use of a rotating spiral pluviator for creating large sand models
M.E. Stringer, L. Pedersen, B.D. Nuss & D.W. Wilson
RPI in-flight two directional earthquake simulator
I. Sasanakul, T. Abdoun, A. Tessari & J. Lawler
Physical modelling of SCR in the touchdown zone under three axis motions
B. Elliott, R. Phillips, A. Macneill & G. Piercey
The geotechnical beam centrifuge at COPPE centrifuge laboratory
M.S.S. Almeida, M.C.F. Almeida, P.C. Trejo, K.I. Rammah, J.A. Lukiantchuki, M.P.P. Guimarães & J.R.M.S. Oliveira
4. Sensor, instrumentation and modelling techniques
Water supply to a geotechnical centrifuge for pile jetting in sand
P. Shepley & M.D. Bolton
Investigation of the spatial distribution of installation effects around stone columns with an electrical needle
J. Gautray, J. Laue & S.M. Springman
Full field measurement of liquefied soil on geotechnical centrifuge using digital image correlation
D. Takano, Y. Morikawa & H. Takahashi
A two-dimensional miniature cone penetration test system for centrifuge modelling
Y.-G. Zhou, T. Liang, Y.-M. Chen, D.-S. Ling, L.-G. Kong, Y. Shamoto & A. Ishikawa
Measurement of soil state variables using Spatial Time Domain Reflectometry (Spatial TDR)
A. Scheuermann, R. Becker & S. Schlaeger
Optimal free length of bender and extender elements used for seismic testing in geotechnical centrifuges
A. Archer & G. Heymann
A new technique to reconstitute crust layers for model testing
M.S. Hossain, C.D. O’Loughlin & C. Gaudin
Boundary corrected calibration of tactile pressure sensors
A. Tessari, T. Abdoun, I. Sasanakul & E. Wroe
Surface kinematometry by image processing for geotechnical model tests
K. Ueno, S. Sreng & K. Kobayashi
Evaluating the response of new pore pressure transducers for use in dynamic centrifuge tests
M.E. Stringer, J.D. Allmond, C.J. Proto, D.W. Wilson & B.L. Kutter
Advances in measuring rotation with MEMS accelerometers
J.D. Allmond, M. Hakhamaneshi, D.W. Wilson & B.L. Kutter
Scale modelling of plant root systems using 3-D printing
T. Liang, J.A. Knappett & A.G. Bengough
5. Similitude and scaling
Applicability of the generalized scaling law for fundamental physical properties
T. Tobita, S. Iai, S. Escoffier & J.L. Chazelas
Scaling effects in the 1 g modelling of offshore pipeline ploughs
K.L. Lauder & M.J. Brown
The effect of radial G-field on the centrifuge modelling
D.S. Park
Spatial soil variability as a necessary scaling law for centrifuge modeling
L. Zhang & L. Zhang
Using the ‘step zero’ approach to design a centrifuge modelling program
S.N. Ullah, S.A. Stanier, D.J. White & Y. Hu
Mesoscale analyses of load distribution mode of caisson during sinking
B. Mu, Q. Bie & X. Zhao
Physical and numerical modeling of problems in homogeneous and fractured soft rock masses
K.J.L. Stone, M. Maquin, D.J. Richards & M. Montouchet
6. Education
Pioneers of centrifuge modelling
W.H. Craig
Geotechnical instructional centrifuge modeling of stress distribution
C.J.R. Coccia & J.S. McCartney
The evolution of a physical modelling course over two decades
S.M. Springman, J. Laue, R. Herzog & A. El-Hamalawi
The history of geotechnical centrifuge modeling in Russia
V.V. Vinogradov, Y.K. Frolovsky & A.A. Zaytsev
15 years of experience using a physical model exercise in a Masters’ course
J. Laue, S.M. Springman, J. Gautray, W.F. Morales, M. Iten & A. Arnold
7. Offshore geotechnics
Response of monopiles under cyclic lateral loading with a varying loading direction
C. Rudolph, J. Grabe & B. Bienen
Simulating cohesive backfills in centrifuge models of subsea pipelines
W.H. Craig
Centrifuge modelling of suction caissons under orthogonal double line loading
M. Burns, M.L. Maynard, W.G. Davids, J. Chung & C. Gaudin
Rate effects on the uplift capacity of skirted foundations on clay
X. Li, C. Gaudin, Y. Tian & M.J. Cassidy
Modelling subsea protection caissons against ice scour
R. Phillips, G. Piercey, S. Soper, A. Macneill & J. Barrett
Centrifuge study of the combined bearing capacity of a hybrid foundation system
N. Cheng, C. Gaudin, M.J. Cassidy & B. Bienen
Installation of suction caissons in Gulf of Guinea clay
C. Gaudin, C.D. O’Loughlin, M.S. Hossain, M.F. Randolph & J.-L. Colliat
Pipeline upheaval buckling in liquefiable soils
E.S. Williams, B.W. Byrne & A. Blakeborough
Modelling ice rubble-rock berm interaction
R. Phillips & K. Chi
Effect of lattice leg on penetration resistance of spudcan foundations—Physical and numerical modeling
Y.P. Li, X.Y. Zhang, F.H. Lee, S.H. Goh, J.F. Wu & J.T. Yi
Model tests of lateral loading for surface pipelines on sand
Y. Li & B.W. Byrne
Centrifuge test of a clustered bucket foundation for offshore wind towers
Y.W. Choo, S. Kim, J.H. Kim, H.Y. Lee, D.S. Kim, D.J. Kim, J.U. Youn, S.H. Jee,
J. Choi & M.S. Hossain
The soil stress state surrounding pile during spudcan penetration
Y. Xie, C.F. Leung, Y.K. Chow & F.C. Chow
Centrifuge model study of the response of spudcan with lattice leg to rocking
Y. Yang, F.H. Lee, S.H. Goh, X.Y. Zhang & J.F. Wu
Model tests on offshore monopile subjected to lateral monotonic and cyclic loading
B. Zhu, Y.X. Sun, R.P. Chen & Y.-M. Chen
Responses of sandy seabed under combined waves and current: Turbulent boundary layer and pore-water pressure
W.G. Qi & F.P. Gao
Centrifuge modelling and numerical simulation on construction and long-term settlement of reclaimed island
C.L. Zhang, X.F. Ma, J.Y. Yuan, L.Q. He & X. Zhang
Centrifuge modelling of system performance of bridge pile foundations subject to vessel collisions
L. Zhang & S.S.W. Cai
8. Shallow foundations
Penetration behavior of ellipse bucket into soft ground in centrifuge
Z.Y. Cai, G.M. Xu, X.W. Gu, G.F. Ren & J.F. Mao
Raft above rigid inclusions—centrifuge investigation of complex loading
M. Blanc, L. Thorel, D. Macé, A. Néel & G. Rault
Modelling large scale surcharge trials in the geotechnical centrifuge
S.W. Jacobsz
Effect of footing shape on the settlement of rectangular and I-shaped rocking shallow foundations
M. Hakhamaneshi, A.G. Gavras, D.W. Wilson, B.L. Kutter, W. Liu & T.C. Hutchinson
Dynamic response and settlement behavior of piled raft foundation of oil storage tank
J. Takemura, S. Seki & M. Yamada
Isolating shallow foundations from seismic loading
C.M. Heron, S.K. Haigh & S.P.G. Madabhushi
Combined load capacity of grillage foundations on loose sand
L. Tapper, B.W. Byrne & C.M. Martin
Centrifuge model tests on mechanical behavior of piled raft foundation in sand subjected to horizontal and moment loads
K. Sawada & J. Takemura
1 g physical model tests on grillage foundations in clay
L. Koopman & J. Dijkstra
Evolution of deformation fields in 1-g model tests of footings on sand
T.G. Murthy
Experimental investigation of the rocking response of SDOF systems on sand
P. Kokkali, T. Abdoun, I. Anastasopoulos, R. Kourkoulis, F. Gelagoti & G. Gazetas
Observations on bucket foundations under cyclic loading in dense saturated sand
A. Foglia, L.B. Ibsen, G. Nicolai & L.V. Andersen
Author index
VOLUME 2
9. Deep foundations
Investigation of the influence of the installation method on the soil plugging behaviour of a tubular pile
S. Henke & B. Bienen
Centrifuge testing of monopile in clay under monotonic loads
B.H. Lau, S.Y. Lam, S.K. Haigh & S.P.G. Madabhushi
Behavior of pile group response to adjacent tunneling in sand using centrifuge modeling
I. Boonsiri & J. Takemura
Forces involved with the extraction of casings used in rotary bored piling
R.J. Gorasia, A.M. McNamara, A. Bell & T. Suckling
Reducing the driving force required for installation of tubular piles when using the gyropiler
A.M. McNamara, R.J. Gorasia, H. Halai & N.S. Phillips
Set-up effects of piles in sand tested in the centrifuge
D.A. de Lange, A.F. van Tol, J. Dijkstra, A. Bezuijen & R. Stoevelaar
Centrifuge modelling of energy foundations in sand
J.C. Goode III, M. Zhang & J.S. McCartney
Effect of pile spacing on pile demand for small pile groups in laterally spreading soil
J.J.M. Haskell, S.P.G. Madabhushi & M. Cubrinovski
Lateral response of monopiles using centrifuge testing and finite element analysis
A.E. Haiderali, B.H. Lau, S.K. Haigh & S.P.G. Madabhushi
Some considerations for modelling of pile installation in sand
J. Dijkstra & A.B. Lundberg
Experimental stress analysis in helical pile foundations by the photoelastic method
J.A. Schiavon, C.H.C. Tsuha & E.R. Esquivel
Impact of pile geometry on the installation of open-ended press-in piles
G. Forlati & J.A. Black
Performance of a model geothermal pile in sand
C.A. Kramer & P. Basu
Cyclic loading response of monopile foundations in cohesionless soils
C.N. Abadie & B.W. Byrne
Centrifuge modelling of installation effects on helical anchor performance in sand
C.H.C. Tsuha, N. Aoki, G. Rault, L. Thorel & J. Garnier
The effect of loading rate on bearing capacity and tensile resistance of piles
K. Watanabe & O. Kusakabe
Plugging effect on uplift capacity of pipe-piles installed in loose sand
R.M. Reis, F. Saboya, D.P. Neves, S. Tibana, A.F. Manhães & A.C.S. Pereira
Modelling of jacked piles in centrifuge
F.B. d’Arezzo, S.K. Haigh & Y. Ishihara
Centrifuge model test on pile group foundations subject to negative friction and differential settlement
S. Teramoto, M. Kimura & T. Boonyatee
Review of design models for lateral cyclic loading of monopiles in sand
W. Li, K. Gavin, D. Igoe & P. Doherty
Centrifuge testing of monopiles subject to cyclic lateral loading
P.B. Kirkwood & S.K. Haigh
Behaviour of pile above tunnel in clay
E. Hartono, C.F. Leung, R.F. Shen, Y.K. Chow, Y.S. Ng, H.T. Tan & C.J. Hua
Lateral pressure on piles due to horizontal soil movement—1 g model tests on single piles and pile rows
J. Bauer, H.-G. Kempfert & O. Reul
Centrifuge modelling of non-displacement piles and pile groups under lateral loading in layered soils
A.M. Marshall, C.M. Cox, R. Salgado & M. Prezzi
10. Dams and embankments
Investigation of the backward erosion mechanism in small scale experiments
V.M. van Beek, K. Vandenboer, H.M. van Essen & A. Bezuijen
Piled embankment on soft soil reinforced with geosynthetic
R. Girout, M. Blanc, L. Thorel & D. Dias
Centrifuge modelling of a self-regulating foundation system for embankments on soft soils
O. Detert, D. König & T. Schanz
Physical modeling embankment on peat foundation with reinforcing of the wooden piles
A.A. Zaytsev
Dynamic centrifuge model tests on culvert embankment with perpendicular wall in culvert longitudinal direction
Y. Sawamura, K. Kishida & M. Kimura
Full-scale testing of piping prevention measures: Three tests at the IJkdijk
A.R. Koelewijn, G. de Vries, H. van Lottum, U. Förster, V.M. van Beek & A. Bezuijen
Three dimensional centrifuge modeling test of high CFRD in a narrow valley
X. Zeping, H. Yujing & L. Jianhui
11. Excavations, retaining structures and underground construction
Variation of the coefficient of lateral earth pressure with deformation for cohesionless backfills
A. Altunbas, M. Abzal, A.T. Gezgin & O. Cinicioglu
Centrifuge model tests on the connecting form between cutoff wall and composite geomembrane of cofferdam
B. Li, Y.H. Cheng & Z.L. Cheng
Centrifuge modeling for I-wall retrofit studies
W. Vanadit-Ellis & M.K. Sharp
Physical model of a rigid retaining wall under translation mode and its variation of arch action in backfill material with interface friction
T. Pipatpongsa, M.H. Khosravi & J. Takemura
Centrifugal model test on the at-rest coefficient of lateral earth pressure in unsaturated soils
J.S. Li, Y.C. Xing & Y.J. Hou
Centrifugal modeling of shallow tunnels in heterogeneous soils
G. Muñoz & B. Caicedo
Centrifuge modelling tests of geocell gravity retaining structures
D. Gómez, B. Caicedo & N. Estrada
An investigation of perpendicularly crossing twin-tunnel interaction
T. Boonyarak, C.W.W. Ng & D. Mašín
Seismic behavior of inverted T-shape flexible retaining walls via dynamic centrifuge
S.B. Jo, J.G. Ha, M.T. Yoo, Y.W. Choo & D.S. Kim
The influence of a time delay between sequential tunnel constructions
S. Divall, R.J. Goodey & R.N. Taylor
Centrifuge model test of ground upheaval caused by the rising of groundwater level and its effect on shield tunnel
S. Sreng, T. Kusaka, H. Tanaka, H. Sugiyama & T. Ito
Test development for the investigation of soil disaggregation during slurry tunnelling
N.S. Phillips, S.E. Stallebrass, R.J. Goodey & S.A. Jefferis
Centrifuge modelling of effects of shield tunnels on existing tunnels in soft clay
X.F. Ma, X.F. Tian, J.S. Wang & L. Yu
Seismic response of a cut-and-cover underground structure in dry sand: Centrifuge modeling
K.M. Gillis, S. Dashti, Y.M.A. Hashash & M.I.R. Arduz
12. Earthquake engineering
1-g shaking table tests on mitigation of seismic subsidence of structures
R. Rasouli, I. Towhata & T. Hayashida
Centrifuge modelling of earthquake-induced submarine landslide and its gravity flow transition
H. Takahashi, S. Sassa & Y. Morikawa
Effects of ground motion intensity parameters on soil-foundation-structure-interaction and site response
M. Ghayoomi & S. Dashti
Seismic earth pressure reduction on gravity retaining walls using EPS geofoam
S.M. Dasaka, T.N. Dave, V.K. Gade & V.B. Chauhan
Shaking table testing of retrofitted 3-storey building
I. Anastasopoulos, V. Drosos & N. Antonaki
Centrifuge modeling of seismic liquefaction effects on adjacent shallow foundations
A.S.P.S. Marques, P.A.L.F. Coelho, S.K. Haigh & G. Madabhushi
Seismic soil structure interaction: A parametric study on shallow foundations
S. Escoffier & J.L. Chazelas
Seismic performance of pile foundation with reinforcement of steel sheet-piles in sand
X. Zhang & J. Takemura
Centrifuge model tests on the measurement of impact energy on bridge pier foundations embedded in sand
B.V.S. Viswanadham, A. Guha, B.V. Sudarshan, S. Kundu & D. Bhattacherjee
Stiffness matching of model reinforced concrete for centrifuge modelling of soil-structure interaction
A.H. Al-Defae & J.A. Knappett
Use of Ricker wavelet ground motions as an alternative to push-over testing
M. Loli, I. Anastasopoulos, J.A. Knappett & M.J. Brown
Effect of liquefaction duration on ground progressive failure under 2-D biased load
A. Ishikawa, Y. Shamoto, H. Mano, Y.-G. Zhou, T. Liang & Y.-G. Li
13. Ground improvement and reinforcement
Centrifuge modelling of the ground reaction curve of fibre reinforced soil
C.M. Cox, A.M. Marshall & D. Wanatowski
Centrifuge modelling of saturated fibre-reinforced sand
K. Wang & A.J. Brennan
Centrifuge modelling of Ultra Thin Continuously Reinforced Concrete Pavements (UTCRCP)
E.P. Kearsley, W.J. vd M. Steyn & S.W. Jacobsz
The behaviour of weakly cemented sand beams spanning over openings
W.P. Bronkhorst & S.W. Jacobsz
Centrifuge model tests on failure pattern of cement treated ground
M. Kitazume & T. Takeyama
Centrifuge model tests on the performance of soil-nailed shoring system
S. Kundu & B.V.S. Viswanadham
1 g axisymmetrical physical modeling of a rigid inclusion load transfer mattress system
A.Q. Dinh, J. Canou & J.-C. Dupla
Geogrid—reinforced soil parameters in field and pullout tests
V.V. Vinogradov, A.A. Zaytsev, Y.K. Frolovsky & A.N. Kostousov
Comparison of ground improvement on double porosity soil: A centrifuge study of pore pressure response
E. Pooley, S.M. Springman & J. Laue
Centrifuge model tests on geogrid reinforced soil walls with marginal backfills
S. Balakrishnan & B.V.S. Viswanadham
Some studies on the performance of geocomposite reinforced slopes subjected to rainfall
D. Bhattacherjee & B.V.S. Viswanadham
Evaluation of the effect for a liquefaction countermeasure using enlarged spacing of the lattice shaped ground improvement method by centrifuge model test and its FE analysis
Y. Okochi, H. Miki, S. Sreng, K. Kobayashi & M. Makino
14. Geohazards
A comparison of internal and external flow behaviour of laboratory-scale debris flows
J.J. Bird & E.T. Bowman
Modelling for the design of passive protection measures against rock fall
G. Gottardi, L. Govoni, A. Mentani, C. Gentilini & F. Ubertini
Pore pressure responses of a buried blast in saturated sand
C.H. Yeo, S.H. Goh, S. Anand & T.B. Soh
Understanding subsidence consequences on masonry structures using large small-scale physical modeling
L. Nghiem, M. Al Heib & F. Emeriault
15. Slope stability
Modelling slope failures by ‘gravity turn-on’
W.H. Craig
Effect of bedrock shape and drainage properties on the stability of slopes
A. Askarinejad, J. Laue & S.M. Springman
A combined study of centrifuge and full scale models on failure of seismically damaged slopes
S. Tamate, T. Hori, C. Mikuni & N. Suemasa
Centrifuge modeling of dynamic response in slopes
J. Dafni & J. Wartman
On the seepage-induced failure of vegetation-stabilised slopes
A. Takahashi, K. Nakamura & S. Liktilersuang
16. Soil properties and behaviour
Arching effect in a granular soil subjected to monotonic or cyclic loading: Kinematic analysis
O. Jenck, G. Combe, F. Emeriault & A. De Pasquale
Physical modeling of clay mixtures with large particles
C. Lozada, B. Caicedo & L.E. Vallejo
Physical modeling of soil uncertainty
L.X. Garzón, B. Caicedo, M. Sánchez-Silva & K.K. Phoon
Change in local void ratio distribution of sand as a function of aging time
M.R. Muszynski & R.J. Hodek
The physical modeling of canal lining interaction behavior on expansive soil
M.H. Bonab & F.B. Sarand
Meso-mechanism analysis of soil arching in composite foundation
X. Zhao, X. Zhu & W. Gong
Measurement of post-earthquake strength of liquefiable soils in centrifuge models
I. Anderson, M.M. Dewoolkar, J. Hargy & P. de Alba
The use of CPT and Vs for assessment of saturated soil deposits in the centrifuge
W. El-Sekelly, T. Abdoun & R. Dobry
Miniature cone tip resistance on silty sand in centrifuge model tests
J.H. Kim, S.R. Kim, H.Y. Lee, Y.W. Choo, D.S. Kim & D.J. Kim
Consolidation characteristics of tailings using a high-g bench-top centrifuge
J.S. Sharma
Author index