Geotechnical Investigations of Dams, Their Foundations and Appurtenant Structures - Practice NoteBook Now
Wednesday 10th October
0900 – 1700
Grand Ballroom, Sofitel Melbourne On Collins.
Overview of Workshop
In 2013 ANCOLD surveyed members for suggestions for guidelines which the members felt were needed. This resulted in the recognition that investigations for many dams suffer from poor or insufficient geotechnical information; the standard of investigations was sometimes lower than desirable; geological and geotechnical models often had shortcomings; and there was insufficient understanding amongst some owners of the importance of storing geological data, including construction records and drill core.
To address this ANCOLD established a Working Group to develop a Practice Note titled Geotechnical Investigations of Dams, their Foundations, and Appurtenant Structures. Membership of the Working Group includes owners, engineering geologists, and geotechnical and dam engineers. The Workshop program is aligned with the Practice Note that is currently being developed.
The Workshop is directed at owners, their in-house engineering staff, civil engineering consultants, and others preparing briefs that include engineering services for site investigations of dams, their foundations, and appurtenant structures; and consultants carrying out the investigations. It will also be useful for regulators.
The main features of the Workshop include the following:
- It will cover existing and new dams, and upgrades to existing dams; all types of water storage dams; and dams from low to extreme consequences of failure. It will cover flood retention basin structures and mine tailings dams, but not levees.
- It will provide guidance on the roles and responsibilities of Owners and Consultants and how the Owner should work with the Dam Consultant to scope the required site investigations.
- It will discuss common issues and objectives of geotechnical site investigations for dams and appurtenant structures.
- It will outline steps to be taken in carrying out geotechnical site investigations, determination of the appropriate investigation methods, and the amount of investigation, which relates to the objectives of the engineering studies.
- It will provide general advice on which methods are suited to investigations of new and existing dam foundations, existing embankments, concrete dams, spillways, earthfill borrow areas, and sources of filter materials, rockfill and concrete aggregates.
Marius Jonker, Workshop Organiser
Robin Fell worked on hydropower and dams projects in Papua New Guinea for a total of 9 years, and with consulting geotechnical engineers from 1977-1985. There he worked mainly on landslides, tailings dams and embankment dams. He joined the University of New South Wales in 1985 as Professor of Geotechnical Engineering. He retired in 2005 but continues to work as a Peer Reviewer on dams and landslide projects. He is chair of the Working Group for ANCOLD Practice Note on Geotechnical Investigations of Dams, their foundations and Appurtenant Structures.
Andrew is GHD’s Service Line Leader for Geology in Australia. He is an Engineering Geologist with eighteen years’ experience encompassing planning and managing geotechnical investigations; developing geotechnical models; design of rock excavations, stabilisation treatments and foundations; construction monitoring; and design verification.
His skill-set is most readily applied to large dam and tunnel projects, in particular applying rock mechanics principles to assess the engineering characteristics of rock masses. Over the last ten years, Andrew has been the geotechnical lead for several large dam projects from the initial investigations stage through detailed design, construction and commissioning.
Gavan is a Technical Director with AECOM in Melbourne. He completed his undergraduate civil engineering degree in 1986 at University of Melbourne and his doctorate in 2003 at University New South Wales, School of Civil and Environmental Engineering where he studied the deformation behaviour of landslides and dams. Gavan represents ANCOLD on the ICOLD committee for Embankment Dams and is part of the working group for the ANCOLD practice note on geotechnical investigations.
Gavan’s areas of expertise include the investigation and design for embankment dams, assessment of embankment performance, liquefaction assessment, stability and deformation assessments, earthworks and construction support. He has worked on numerous embankment dams for a number of Australian Dam authorities over the past 15 years including the major upgrade projects for Rowallan Dam, Greenvale Dam, Tullaroop Reservoir and Hinze Dam.
Neil is currently the Portfolio Manager Civil and Dam Safety , Hydro Tasmania Ltd. and has more than 25 years of experience predominately in the Australian Water Industry. He has been involved the investigation, design, construction, monitoring and surveillance of water retaining structures and conveyances for both potable water supplies and hydro power generation. For the last 10 years he has been an asset manager and a dam owner for large water businesses in Tasmania, namely TasWater and Hydro Tasmania Ltd.
Barton Maher is the Principal Storage Planning for Seqwater where he is responsible for the capital planning for the dams and weir assets owned and operated by the authority. He has overseen the delivery of portfolio risk assessments for the 26 referable dams and 53 weirs owned by Seqwater and the subsequent investigation program to confirm the scope and priority of the risk reduction works to meet the Queensland Dam Safety regulatory requirements. He has over 23 years of experience in the dam industry working for 11 years with the NSW Department of Public Work and Services before moving to Queensland and commencing with Seqwater. He is also a member of the Seqwater Flood Operations Team, working as an approved Senior Flood Operations engineer responsible for direction of flood operations at the gated dam owned by Seqwater.
Richard J Rodd (Managing Director-Richard Rodd & Associates Pty.Ltd.)
Qualifications: Dip CE, BE (Civil), MSc, FIEAust, C P Eng (Reg), NER, APEC, RPEQ, RBP (Vic), FAICD,AIMM
With a wealth of experience spanning 40 years, Richard is Principal of Richard Rodd & Associates a private (Associate) Member of ANCOLD, (Aust. National Committee on Large Dams), a member of the Aust. Geomechanics Society and the College of Civil Engineers (Aust). His expertise includes water resource based projects covering all phases from investigation, design, construction, operations and maintenance and surveillance of major dams (around 100) to the development of sophisticated mathematical hydrological models and flood studies.
For the last 15 years Richard has been an independent Peer/Expert Reviewer of ANCOLD Register dam projects (over 50 dams), and has extensive experience in dam design and construction with a particular interest in ground anchors. Richard is also the Convenor of the ANCOLD Retarding Basin Design and Construction Guideline Committee and a Working Group Member of the Foundation Investigation for Dams Guideline Committee. He has undertaken Safety Inspections of dams, Safety Assessments, Risk Assessments, Extreme Flood Studies (PMF Spillway upgrades), flood inundation mapping and Dam Break assessments. He also has also designed, performed and evaluated geotechnical investigations for dam construction and prepared Dam Safety Emergency Plans, Design Reports and O&M Manuals.
Richard is currently involved in the review and design of upgrades for several Dams, Retarding Basins, Levees and Weirs in Australia and overseas, and has been involved in the Design, Construction and/or Expert Review of nearly all major dam anchoring/ post-tensioning projects in Australia. He has been the author and co-author of a many peer reviewed technical papers on dam projects and in particular on ground anchor technology.
Paul Southcott is a Specialist Dams Engineer with Entura and has over 31 years’ professional expertise in the fields of civil and dam engineering. Paul’s dams engineering experience spans the full range of activities including: geotechnical and hydrological investigations, feasibility and options studies, concept, preliminary and detailed design, engineering assessment, consequence assessment and risk assessment, safety reviews, monitoring and surveillance and emergency planning. Paul has worked on many dam types including embankment dams, concrete gravity and arch dams.
Paul has wide experience of site investigations including for new and existing dams, foundations, landslides and roads. His experience covers all aspects from planning, site supervision and logging, interpretation and review. He is experienced in a range of investigation techniques including test pitting, drilling and geophysical techniques such as seismic traverses.
Deryk is a Chartered Principal Engineering Geologist with SMEC Australia and has over twenty years’ experience. He is a Chartered Geologist with the Geological Society of London, and is a Member of the European Federation of Geologists and Geological Society of America. Deryk has worked on a wide variety of small to large dam projects in Queensland, New South Wales, the Northern Territory, the Australian Capital Territory, and Oman. Other civil infrastructure and Underground Coal Gasification projects have taken him to South Australia, China, New Caledonia, New Zealand and Myanmar (Burma).
He has experience in all aspects of geological and geotechnical site investigations, from investigation design and specification, the execution of field works, detailed data collection, geophysics, geological mapping to analysis, technical reporting, review, and provision of technical advice. His work has resulted in the development of new rock classification techniques (published) and the development of digital data acquisition systems for field projects to allow more efficient and effective processing and analysis of geological data.
Deryk contributed to the ANCOLD Practice Note: Geotechnical and Geological Investigations – in prep
|Pre-Conference Workshop Options||Standard
|Young Professional Member||$345|
|Young Professional Non Member||$455|
Program Published – 20 September 2018