Abstract
| Original language | English |
|---|---|
| Title of host publication | ANCOLD Proceedings of Technical Groups |
| Subtitle of host publication | Dams: Evolving with Modern Technology |
| Place of Publication | Hobart Tasmania Australia |
| Publisher | Australian National Committee on Large Dams Incorporated (ANCOLD) |
| Pages | 1-9 |
| Number of pages | 9 |
| Publication status | Published - 2018 |
| Event | Australian National Committee on Large Dams conference, 2018: Dams: Evolving with Modern Technology - Sofitel Melbourne On Collins, Melbourne , Australia Duration: 11 Oct 2018 → 12 Oct 2018 https://web.archive.org/web/20180322042712/http://www.ancoldconference.com.au/ |
Conference
| Conference | Australian National Committee on Large Dams conference, 2018 |
|---|---|
| Abbreviated title | ANCOLD 2018 |
| Country | Australia |
| City | Melbourne |
| Period | 11/10/18 → 12/10/18 |
| Internet address |
Keywords
- Three-dimensional (3D)
- Geological Modelling
- UAV
- Persistent Discontinuity
- Arch Dam
- Foundation Geology
Cite this
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Innovative applications of UAV-mounted remote sensing for the geotechnical assessment of Sturt River Dam. / Barter, James; Micklethwaite, Steven; Thiele, Sam; Macklin, Steve.
ANCOLD Proceedings of Technical Groups: Dams: Evolving with Modern Technology. Hobart Tasmania Australia : Australian National Committee on Large Dams Incorporated (ANCOLD), 2018. p. 1-9.Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research
TY - GEN
T1 - Innovative applications of UAV-mounted remote sensing for the geotechnical assessment of Sturt River Dam
AU - Barter, James
AU - Micklethwaite, Steven
AU - Thiele, Sam
AU - Macklin, Steve
PY - 2018
Y1 - 2018
N2 - The assessment of the geological foundations of arch dams is required as part of the asset owner’s safety obligations (ANCOLD 2003). The task is often made difficult due to steep topography where arch dams are commonly constructed. Between 2013 and 2017, GHD was engaged by South Australia Water (SA Water) to examine the geological and geotechnical conditions of the Sturt River Flood Attenuation Dam (South Australia) abutment foundations. The dam was constructed between 1964 and 1966 within the Proterozoic “Sturt Tillite”. The foundations of the dam are characterised by a folded and fractured rock mass which creates complex spatial relationships between discontinuities and outcrop expression, difficult to assess in two-dimensional space. In collaboration with Monash University’s School of Earth, Atmosphere and Environment, a high resolution ortho-photogrammetric survey of the downstream dam abutments was undertaken using an Unmanned Aerial Vehicle (UAV) in areas where traditional mapping could only be obtained by rope access methods. Monash also undertook digital geological mapping of inferred discontinuities based on the UAV imagery. The data was then used to construct a three-dimensional (3D) model of the shape and position of high-persistence discontinuities, potentially critical to abutment stability. In addition to digital data, a low cost, high value field investigation to “ground-truth” the digital data and reviewed existing geological information (including rope access scanline data, foundation mapping and rotary cored boreholes) to develop a holistic understanding of the persistent discontinuities in their geological context.
AB - The assessment of the geological foundations of arch dams is required as part of the asset owner’s safety obligations (ANCOLD 2003). The task is often made difficult due to steep topography where arch dams are commonly constructed. Between 2013 and 2017, GHD was engaged by South Australia Water (SA Water) to examine the geological and geotechnical conditions of the Sturt River Flood Attenuation Dam (South Australia) abutment foundations. The dam was constructed between 1964 and 1966 within the Proterozoic “Sturt Tillite”. The foundations of the dam are characterised by a folded and fractured rock mass which creates complex spatial relationships between discontinuities and outcrop expression, difficult to assess in two-dimensional space. In collaboration with Monash University’s School of Earth, Atmosphere and Environment, a high resolution ortho-photogrammetric survey of the downstream dam abutments was undertaken using an Unmanned Aerial Vehicle (UAV) in areas where traditional mapping could only be obtained by rope access methods. Monash also undertook digital geological mapping of inferred discontinuities based on the UAV imagery. The data was then used to construct a three-dimensional (3D) model of the shape and position of high-persistence discontinuities, potentially critical to abutment stability. In addition to digital data, a low cost, high value field investigation to “ground-truth” the digital data and reviewed existing geological information (including rope access scanline data, foundation mapping and rotary cored boreholes) to develop a holistic understanding of the persistent discontinuities in their geological context.
KW - Three-dimensional (3D)
KW - Geological Modelling
KW - UAV
KW - Persistent Discontinuity
KW - Arch Dam
KW - Foundation Geology
M3 - Conference Paper
SP - 1
EP - 9
BT - ANCOLD Proceedings of Technical Groups
PB - Australian National Committee on Large Dams Incorporated (ANCOLD)
CY - Hobart Tasmania Australia
ER -