Conferences, Seminars and Workshops

Transcription

1 Conferences, Seminars and Workshops The University 57

2 Conferences Offshore Technology Conference, Houston, USA, 30 April 3 May 2012 As usual, COFS was well represented at the annual offshore Technology Conference in Houston. In particular, in 2012, ISO TC67/SC7/WG7 (International Organization for Standardization: site-specific assessment of mobile offshore units Jack-ups) secured two sessions on jack-up rigs: ISO : A Site-Specific Assessment of Mobile Jack-Up Units, and Developments in Jack-Up Geotechnical Engineering. The COFS jack-up team, Mark Randolph, Mark Cassidy, Christophe Gaudin, Britta Bienen, Shazzad Hossain, Vickie Kong, Youhu Zhang, and Stefanus Safinus contributed five papers. Christophe, Youhu, Shazzad and Sam Stanier attended the conference. They presented technical papers on Spudcan reinstallation near a footprint, Force-resultant model for spudcans in soft clay and Integrated jack-up installation systems, respectively. In Britta s absence, Sam presented her paper on Cone penetrometer-based spudcan penetration prediction. One of our most active collaborators, Okky Purwana from Keppel Offshore and Marine Pte Ltd., also presented a paper. In addition, Shazzad, a committee Core Member, participated in the ISO/TC 67/SC 7/WG 7 (Jack-Ups) meeting on Site Assessment of Jack-up Rigs. Society for Underwater Technology Subsea Conference, Perth, February 2012 COFS was well represented at the 2012 SUT Subsea Conference running alongside the Australian Oil and Gas exhibition in Perth during February. Presentations by Yinghui Tian and David White showed recent COFS research into pipeline-seabed interaction during a one-day event focussed on calcareous sediments. COFS alumnus Fraser Bransby also presented a paper, and Ian Finnie a UWA engineering alum from before COFS was founded Chaired the event. Mark and Shazzad were awarded the American Society of Civil Engineers (ASCE) Best Civil Engineering Paper Award for 2012 for their paper: Foundation modelling and assessment in the new ISO standard The paper is also co-authored by Patrick Wong, ExxonMobil; Jack Templeton, Sage USA; Okky Purwana; Hugo Hofstede, GustoMSC Engineers and Chris Martin, University of Oxford. Prize-winning authors were presented with their award at a ceremony held at OTC-Reliant Centre in Houston, Texas, USA, on Monday 30 April Shazzad, Okky, Jack and Patrick attended the ceremony and received their awards (see Figure 24). This paper was presented by COFS visitor Patrick Wong, the convener of WG7 Panel 4. Figure 25: David White speaking at Science at the Shine Dome (Australian Academy of Science), on a case study from the Octonauts to explain pipeline engineering to the audience of scientists in Canberra, 2-4 May 2012 Figure 24: Shazzad (far left) with the other award winners 58 cofs.uwa.edu.au

3 2nd European Symposium on Centrifuge Modelling in Geotechnics (Eurofuge), Delft, The Netherlands, April 2012 Christophe Gaudin and Sam Stanier took advantage of their European roots to attend the 2nd European Symposium on Centrifuge Modelling in Geotechnics organised by Deltares and held in Delft, Netherlands in April The Symposium focused on the application of centrifuge modelling and gathered about 80 specialists from both academia and industry. Christophe delivered an invited lecture showcasing centrifuge modelling applications for offshore developments in the North West Shelf. Sam presented the work he conducted with, PhD student Pan Hu and Mark Cassidy s on the use of centrifuge modelling to calibrate a model predicting peak resistance during punch-through events for loose sand overlying clay. 1st Symposium on Centrifuge Modelling in Geotechnics (Asiafuge 2012), Bombay, India, November 2012 After attending Eurofuge in April, Christophe Gaudin and David White led the charge to establish the first regional symposium on Centrifuge Modelling in Geotechnics in Asia. Asiafuge2012 was held at IT Bombay in November 2012, as the twin of Eurofuge2012 and establishes regional events that promote and disseminate centrifuge modelling to the geotechnical community. The symposium featured contributions from India, Singapore, South Korea, Japan, Australia, China, but also Germany, Switzerland, England. Christophe delivered a keynote lecture on the application of centrifuge modelling to offshore geotechnics. International Conference on Scour and Erosion, Paris, August 2012 This event was attended by COFS Scott Draper and Professor Liang Cheng from UWA s School of Civil and Resource Engineering. Liang delivered an invited keynote describing recent research at UWA using the O-Tube. Figure 27: Liang Cheng with the O-Tube presentation Society for Underwater 7th Technology International Conference on Offshore Site Investigation and Geotechnics, London, September 2012 Several COFS staff travelled to London to attend the quadrennial SUT OSIG event at the Royal Geographical Society. This event was accompanied by a special issue of the journal Geotechnique, which included 4 contributions from COFS. With a further 10 papers in the conference proceedings, COFS had a larger presence than any other contributing organisation. COFS presenters included Anthony Blake, Mark Cassidy, Christophe Gaudin, Susan Gourvenec, Mark Randolph and David White. Mark Randolph offered the introduction to the 1st McClelland Lecture, delivered by Don Murff. Figure 26: L-R: Colin Leung, Christophe Gaudin, Y.W. Choo, Stuart Haigh, N.R. Kim, Dong-Soo Kim, Xianfeng Ma The University 59

4 Hong Kong Centre for Research and Professional Development Commemorative Lecture, Hong Kong, 10 July 2012 To mark the 15th anniversary of the founding of the Centre for Research and Professional Development, Victor Li invited David White to give a commemorative lecture in Hong Kong. The lecture, entitled Offshore Geotechnics research and practice beyond the traditional boundaries of soil mechanics, was attended by over 400 members of the Hong Kong geotechnical engineering community. The lecture was accompanied by a published article coauthored with Noel Boylan (formerly of COFS, now with Advanced Geomechanics) International Offshore and Polar Engineering Conference (ISOPE), Rhodes, Greece, June 2012 The 22nd International Offshore and Polar Engineering Conference was hold in Rhodes Greece in June PhD student Wen Gao from COFS attended and presented her study, co-authored with Yuxia Hu and Mi Zhou, entitled Effect of a Thin Strong Middle Layer on Spudcan Penetration into Three-layer Uniform Soils by LDFE Analysis. Patrick Wong from ExxonMobil Development Company also presented his study co-authored with Christophe Gaudin, Mark Randolph and Mark Cassidy as the keynote address. The research entitled Performance of Suction Embedded Plate Anchors in Permanent Mooring Applications quantified the ultimate holding capacity of embedded plate anchors under various loading by centrifuge model approach. Figure 28: David in Hong Kong DNV Pipelines Workshop, Singapore, November 2012 The O-Tube team (David White, Liang Cheng, Hongwei An, Scott Draper, Chengcai Luo, Henning Mohr and Simon Leckie) travelled en masse to a workshop hosted by the DNV pipelines committee and the National University of Singapore. Four presentations were given, encouraging participants to engage with our research program on pipeline stability. Figure 29: ISOPE conference dinner 31st International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2012) Rio de Janeiro, Brazil, 1-6 July 2012 COFS PhD students Shah Neyamat Ullah, Steven Cheng, Chengcai Luo, Jalal Mirzadehniasar and Assistant Professor Hongwei An attended the OMAE 2012 conference in the spectacular city of Rio de Janeiro. Neyamat discussed his article on centrifuge strong box boundary effects coauthored by Yuxia Hu. Steven presented his numerical study on 3D dynamic push-over analysis of jack-up structures and Jalal presented his research on nonlinear dynamic analysis of Jack-ups focussing on extreme random waves. Chengcai and Hongwei presented papers describing the UWA O-Tube research, co-authored with Liang Cheng and David White. 60 cofs.uwa.edu.au

5 In addition to academics from around the world, the conference was attended by significant numbers of industrial delegates. The main attraction of the conference was the Outreach for Engineers Specialty Forum, an event for the conference attendees providing job adverts and several technical sessions with the industrial partners Shell, Exxonmobil, Technip and H2O. Figure 31: Host Professor Han-long Liu, and COFS attendees Liu Jun, Long Yu, Yuxia Hu, Shazzad Hossain, Wen Gao, Jingbin Zheng and Hongliang Ma Figure 30: OMAE in Rio De Janeiro International Symposium on Advances in Geotechnical Engineering, Hohai Nanjing, China, 11 December 2012 The International Symposium on Advances in Geotechnical Engineering was hosted by the Geotechnical Research Institute, Hohai University, China. COFS visitor Professor Han-long Liu chaired the symposium. Yuxia Hu, Shazzad Hossain, Wen Gao, Jingbin Zheng and Hongliang Ma attended (see Figure 31). Shazzad presented a keynote lecture and the others gave technical talks. Shazzad Hossain, Yuxia Hu and Mark Randolph were awarded a significant grant (Group-Mission) as part of the Australia- China Science and Research Fund (ASCRF). The Group Mission includes COFS, Hohai University and Dalian University of Technology. Yuxia and Shazzad were both invited on technical visits at a pile installation site and a land reclamation site. NIADC/SPE Asia Pacific Drilling Technology Conference, Tianjin, China, 9-11 July 2012 The Ninth Biennial International Association of Drilling Contractors (IADC) and the Society of Petroleum Engineers (SPE) Asia Pacific Drilling Technology Conference (APDT) was attended by Shazzad Hossain (see Figure 31) as his research interests include mitigation of potential spudcan punch-through failure through perforation drilling. Shazzad presented a technical paper on Perforation drilling and an innovative spudcan for mitigating punch-through in multilayered soils, co-authored with PhD student Stefanus Safinus. In addition, Shazzad was invited to visit the China National Petroleum Corporation (CNPC) dockyard at Panjin City, Liaoning Province, China. Their first jack-up rig was under construction during the time of his visit. The team is now organising the Australia-China Symposium on Geotechnical Challenges in Oil and Gas Extraction from Shallow to Deep Waters, 2 April 2013 at UWA as a continuation of the successful symposium at HU. This symposium will be hosted by COFS under the auspices of the ASCRF Group-Mission and will provide Chinese visitors with the opportunity to meet with local researchers, students and industry representatives and to visit the UWA physical modelling facilities. Figure 32: Shazzad is taller than a jack-up! The University 61

6 US Geo-Congress 2012: State of the Art and Practice in Geotechnical Engineering, Oakland, California, USA, March 2012 Mark Randolph presented a state-of-the-art paper on offshore geotechnics at the annual US Geo-Congress organised by ASCE s Geo Institute, held last year in Oakland, California. Each year this congress covers the full breadth of geotechnical engineering, with the particular theme for 2012 being some 30 plenary lectures devoted to the state-of-art and state-of-practice in different application areas. Mark also stood in for Christophe Gaudin in a specialty session devoted to physical modelling. 2nd International Symposium on Constitutive Modelling of Geomaterials: Advances and New Applications, Beijing, China, October 2012 COFS is interested in the development and application of constitutive models of geomaterial. In October 2012, COFS visitor David Muir Wood, COFS academic Xu Li, and PhD students Pan Hu and Jingbin Zheng presented their research findings at the 2nd International Symposium on Constitutive Modelling of Geomaterials: Advances and New Applications. The conference was held at Tsinghua University in Beijing, from October David presented his recent test results on mixtures of clay and fine gravel and mixtures of sand with flexible fibres, emphasising the key role of space and void in the applications of constitutive modelling. Xu presented a new extension to our LDFE technology, modelling sand through large deformations in collaboration with Yuxia Hu and David White. Two other papers by Mark Cassidy, Shazzad Hossain, and Dong Wang were included in the proceedings. Jingbin presented a paper on 3D large deformation FE analysis of spudcan foundations on layered clays using CEL approach and Pan presented Large Deformation Analysis of Spudcan Penetration into Sand Overlying Normally Consolidated Clay. Xu s paper was entitled The application of an extended of Mohr-Coulomb model with state dependent softening to large deformation finite element analysis. Deep Mining 2012, Sixth International Seminar on Deep and High Stress Mining, Perth, Australia, March, 2012 Boris Tarasov presented a new universal concept of brittleness for hard rocks at Deep Mining 2012 in July when the conference returned to Perth after being held here in 2007 and XL APM Advanced Problems in Mechanics Conference, 2-8 July, 2012, St Petersburg, Russia, European Seismological Commission 33rd General Assembly, August 2012, Moscow, Russia, 19th European Conference on Fracture, August, 2012, Kazan, Russia Boris also took part in three conferences in Russia last year, presenting new experimental results and theoretical developments concerning paradoxical behaviour of hard rocks at highly confined conditions and dramatic rock embrittlement with rising confining stress. Figure 33: Jingbin Zheng and Pan Hu outside the Symposium building 62 cofs.uwa.edu.au

7 UWA Friday Seminar Series 2 Mar 2012 Xu Li Research Associate, COFS and School of Civil and Resource Engineering, The University of Western Australia Extension of Mohr-Coulomb criteria into state dependent softening of sand: model and its application in large deformation analysis 9 Mar 2012 David Reid PhD Student, School of Civil and Resource Engineering, The University Accelerated consolidation testing of clay and mine tailings using a desktop centrifuge 16 Mar 2012 James Doherty Assistant Professor, School of Civil and Resource Engineering, The University Forecasting ground deformation 23 Mar 2012 Kasper Hauberg Kærgaard Technical University of Denmark Numerical modelling of shoreline undulations 20 April 2012 Wen Gao PhD Student, COFS and School of Civil and Resource Engineering, The University Large deformation FE analysis of spudcan foundation on threelayered uniform soil 27 April 2012 Christopher Beckett Research Associate, School of Civil and Resource Engineering, The University Prediction of soil water retention properties using pore size distribution and porosity 2 May 2012 Thomas Adcock University of Oxford, UK Freak waves: a personal view 11 May 2012 Al-Sidqi Hasan School of Civil and Resource Engineering, The University of Western Australia Discrete Element Modelling: Simulation with real shape particles 25 May 2012 Amin Rismanchian PhD Student, COFS, The University Failure mechanisms in soft soil berms during lateral buckling of pipelines: a centrifuge modelling study using PIV analysis 8 June 2012 Jalal Mirzadehniasar PhD Student, COFS, The University Nonlinear dynamic analysis of jack-up platforms exposed to extreme random waves 8 June 2012 Shah Neyamat Ullah PhD Student, COFS and School of Civil and Resource Engineering, The University A Numerical Investigation into the bottom boundary effect for spudcan penetration on sand overlying clay in centrifuge tests 3 August 2012 Mehran Rahmanian PhD Student, School of Civil and Resource Engineering, The University Vortex-induced vibration of two side by-side circular cylinders of different diameters in close proximity in steady flow 17 August 2012 Richard Merifield Associate Professor, University of Newcastle The ultimate uplift capacity of multi-plate anchors in clay 24 August 2012 Jun Li Research Associate, School of Civil and Resource Engineering, The University Structural health monitoring with substructure approaches 31 August 2012 Divya S. K. Mana PhD Student, COFS, The University Numerical and experimental investigations of offshore shallow skirted foundations 7 September 2012 Yan Yue PhD Student, COFS, The University Novel penetrometers for characterising pipe-soil interaction forces in situ at the seabed 14 September 2012 Dr Kaiming Bi Lecturer, School of Civil and Resource Engineering, The University Numerical simulation of pounding damage to bridge structures under spatially varying ground motions 21 September 2012 Dr Ashraf Osman Lecturer, Durham University, UK Thermodynamically consistent models for cavities located in creeping media The University 63

8 28 September 2012 Xu Zhao PhD Student, School of Civil and Resource Engineering, The University Blockage effect on currents past gravity anchors in a closed-loop water tunnel: a CFD approach 12 October 2012 Santiram Chatterjee PhD Student, COFS, The University Numerical modelling of pipe-soil interactions 16 October 2012 Scott Draper Assistant Professor, COFS, The University Energy from the ocean in Western Australia 19 October 2012 Xiaowei Feng Assistant Professor, COFS, The University Six DoF loading response of subsea foundations 26 November 2012 Ivy Branson Academic Director, Bentley Systems About academic versions of advanced software packages for offshore structural, geotechnical, building performance, mining, architecture and construction 27 November 2012 David White Professor, COFS, The University of Western Australia Offshore geotechnics research and practice beyond the boundaries of traditional soil mechanics 28 November 2012 Mark L Talesnick UNESCO Chair/ UNITWIN Network Sustainable Engineering for Developing Communities Faculty of Civil and Environmental Engineering, Technion IIT, Haifa, Israel Measuring soil pressure, facts, fallacy and a solution 8 November 2012 Mark Randolph Winthrop Professor, COFS, The University The Lloyd s Register Educational Trust Oration, Australia Geotechnical engineering on and off the North-West Shelf of Australia 9 November 2012 Warren Flentje Melbourne Energy Institute, University of Melbourne Polymetallic nodule mining: innovative concepts for commercialisation 9 November 2012 Pan Hu PhD student, COFS, The University of Western Australia Feasibility study on manganese nodules recovery in the Clarion- Clipperton Zone 64 cofs.uwa.edu.au

9 Workshops ARC Centre of Excellence Centre for Geotechnical Science and Engineering (CGSE) workshops Last year COFS was instrumental in winning a bid for an ARC Centre of Excellence for Geotechnical Science and Engineering. The CGSE has been operational since June 2011, with partner nodes at the University of Wollengong and the University of Newcastle. Over the course of 2012, CGSE academics gathered for two workshops, the first hosted by COFS in February. This event was successful and informative, with a comprehensive program that spanned two full days with nearly 50 research presentations. The workshop was attended by 48 delegates, and technical presentations were given by both research staff and students over the course of sessions on soil characterisation and geohazards, soil and rock behaviour, numerical modelling methods, offshore foundations and offshore renewables and pipelines and risers. These presentations provided insight into fellow members research areas and expertise, and resulted in closer collaboration between the nodes. During December 2012, the University of Newcastle node hosted the annual workshop offsite at a conference venue in Port Stephens, New South Wales. A primary objective of the workshop was to strengthen collaborative research. Fewer formal presentations were scheduled so as to provide time for delegates to enter into information discussions. Figure 34: CGSE Workshop in Perth Figure 35: CGSE workshop participants on the dinner cruise at Port Stephens Figure 36: CGSE workshop in Port Stephens The University 65

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