Groundradar was tasked with conducting a tunnel lining investigation in the mountains of Lesotho. A custom radar system was used with air-launched antennas at multiple radials around the tunnel, all mounted to a vehicle. The data were collected in five runs along the 32 km length of the tunnel and subsequently processed to reveal variations in the tunnel lining thickness, possible void locations and the presence and location of rebar within the
1 GHz air-launched GPR antenna used for tunnel lining survey
lining.
Following from 20 years of work at Rio Tinto’s Weipa operations in Queensland, as well as most other Australian bauxite operations, Groundradar has been working closely with South32 to integrate custom radar technology into their mine planning process at the Worsley Bauxite Mine in Western Australia.
Groundradar was recently contracted by an Indian exploration company to examine a series of small nickel laterite deposits in central Tanzania using UltraGPR. The deposits have been known for decades, but had not been extensively explored except for the artisanal mining of chrysoprase.
After 20 years in attendance, the PDAC continues to be a highlight in Groundradar’s annual conference calendar. In conjunction with a paper at the KEGS Innovation in Geophysics Forum which garnered interest in new radar technologies, the Groundradar booth was well attended by existing clients as well as new partners.
Dr. Francke presented a paper entitled “Applications and Limitations of Deep Ground Penetrating Radar to Mineral Exploration” at the KEGS Innovation in Geophysics Forum in Toronto, which addressed advances in GPR technology as well as analysing claims made of extreme radar performance.
Dr. Francke will be delivering a honorary talk entitled “Recent Developments and Future Directions in GPR Instrumentation” at the SAGEEP meeting in Denver, USA, on March 20, 2017.
Groundradar Inc is attending the Mining Indaba show in Cape Town as part of the Canadian trade delegation to the event. Dr. Francke will be presenting on the topic of GPR applications to mineral exploration at 14:20 on Wednesday, Feb 8th.
Dr. Francke in cooperation with Danmar ExplorIndo, will be conducting a workshop on mineral exploration applications of long-range GPR at the Hotel Kristal, Cilandak, Jakarta, on the afternoon of Feb 17th, 2017. The workshop will focus on typical Indonesian applications for GPR, including nickel laterite and bauxite exploration, aggregate and limestone investigations, as well as geotechnical applications such as slope stability and depth to bedrock studies.
Groundradar Inc will be at Booth 702 at the PDAC for the tenth consecutive year. Visit the booth for the latest news on long-range GPR applications worldwide.
Groundradar and its partner, Initial Exploration (www.initialexploration.com) have conducted a number of site investigations with GPR across Canada. Sites from Victoria, BC to Collingwood, ON have been surveyed to determine the depth to bedrock, thickness of gravels, and locations of historical landfills.
