How will the UCQC Earth Structures Research Team address these concerns?
The UCQC Earth Structures project was developed to address local industry concerns and advance the state of dam engineering both in New Zealand and internationally.
The project is presently supported and guided by three leading dam asset owners: Genesis Energy, Meridian Energy, and Mighty River Power. Governance is provided by a steering committee comprising representatives from industry partners, along with Peter Amos of Damwatch Services Ltd.
Additional guidance is provided by local engineering consultants and members of the New Zealand Society of Large Dams (NZSOLD). Existing links with world-class international researchers will be further developed as the project progresses.
The key performance concerns will be addressed within core research modules 1.1 to 2.3, illustrated above. The research methods will include:
- Analytical and empirical desk analyses to screen for geotechnical susceptibilities
- Scale-modelling of embankment deformations using international apparatus (Module 2.1)
- Commissioning of novel laboratory apparatus at the University of Canterbury to assess particle migration in soils under steady-state and seismic loading conditions (Module 2.2)
What are the expected outcomes?
The aim of the research project is to develop an improved understanding of deformation and erosion phenomena. The project will provide science-based decision-support tools to help asset owners manage risk, prioritise improvement works, and improve post-earthquake inspections.
The commissioning of a specialized seepage testing facility in New Zealand will benefit the dam community directly (testing of dam materials) and indirectly (via research outcomes and the local availability of equipment and expertise). At a broader level, the UC Quake Centre Earth Structures Research Project aims to create a world-class research community at the academic-industry interface. The project will grow capability in New Zealand, both within industry and research faculty, and develop sought-after internationally-recognized expertise.
Who will benefit?
Research outcomes will set the stage for improved dam risk management across New Zealand in coming decades.
- Asset owners will benefit from reduced uncertainty in the assessment of earth dam performance, and will gain science-based frameworks to aid in minimising financial and performance risks associated with aging earth dams.
- The academic community will benefit from the concentrated investment of resources and expertise in the field of geotechnical dam engineering. International research collaborations will provide enduring links to facilities with complementary expertise and specialist equipment.
- The New Zealand dam engineering community will benefit from research outcomes and the development of local, world-class, capability in the field.
- The New Zealand public will benefit by way of improved reliability of power and water supply, and safer dams.
PROGRESS FOR THE LAST THREE MONTHS
• Presentation to NZSOLD management committee
• Attendance at NZSOLD symposium and workshop
• Final raw inventory dataset received for all NZ regions
• Detailed analysis and characterization has commenced on receipt of complete dataset (Sept 2015)
GOALS FOR THE NEXT THREE MONTHS
• Confirm two summer student scholarships to assist with retrieval and analysis of geotechnical information
• Complete cross-sectional analysis of NZ dam inventory
• Report on cross-sectional analysis to project steering committee (October 2015)
• Collate specific geotechnical information from Opus Archives, concerning partners’ structures.
• Delays surrounding NDA’s with partners
• Proactive follow-up during September/October