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Inspection of open-pit mine drainage characteristics with a horizontal borehole camera
Citation
Perdigao, C and Dyson, A and Yaghoubi, M and Baumgartl, T, Inspection of open-pit mine drainage characteristics with a horizontal borehole camera, IOP Conference Series: Earth and Environmental Science, 18-19 January 2021, Helsinki, Finland, pp. 1-10. (2021) [Refereed Conference Paper]
Copyright Statement
IOP Publishing Ltd
DOI: doi:10.1088/1755-1315/727/1/012008
Abstract
Horizontal bores and drains are crucial infrastructures for maintaining the stability of large open-pit mines. Induced deformations as the result of mining activities and the infiltration of water from large surface catchments during heavy rain events can cause the build-up of pore water pressures in brown coal batters. This can potentially lead to catastrophic slope failures. Horizontal boreholes and drains are commonly installed at shallow inclines and typically range in length from 150 to 400 metres. Due to complexities in surveying lengthy horizontal bores, the long-term internal properties of these structures are poorly understood. In this research, a specialised horizontal borehole camera was developed to observe a range of factors influencing borehole performance including the identification of fractured or jointed material, borehole geometry and features, and locationally dependent water outflow and drainage paths. Investigations were undertaken at an operational brown coal mine in the Latrobe Valley, located in Victoria, Australia. Features observed on the profile of horizontal bores are discussed, with an emphasis on providing in-situ material characterisation and for the purposes of maintaining stable mine batters.
Item Details
Item Type: | Refereed Conference Paper |
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Keywords: | horizontal borehole camera, mine drainage, open pit mine |
Research Division: | Engineering |
Research Group: | Civil engineering |
Research Field: | Civil geotechnical engineering |
Objective Division: | Environmental Policy, Climate Change and Natural Hazards |
Objective Group: | Natural hazards |
Objective Field: | Geological hazards (e.g. earthquakes, landslides and volcanic activity) |
UTAS Author: | Dyson, A (Dr Ashley Dyson) |
ID Code: | 145290 |
Year Published: | 2021 |
Deposited By: | Engineering |
Deposited On: | 2021-07-14 |
Last Modified: | 2021-09-24 |
Downloads: | 0 |
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