New laser scanner for world’s deepest mine

August 16th, 2012, Published in Articles: PositionIT

Anglogold Ashanti has purchased a high speed laser scanner to support mining operations at the world’s deepest and most substantial gold mine. The VZ-400, from 3D Laser Mapping, will be used to determine off-line and grade mining at the Mponeng Mine where depths are currently over 2 km below sea level. It will eradicate the need for later redevelopment. The operation extracts the Ventersdorp Contact Reef (VCR) at extreme depths through sequential-grid mining, producing more than 500 000 ounces of gold a year. The scanner will monitor workings for signs of deformation. Using this scanner they will be able to capture highly accurate and repeatable measurements, at regular intervals, and identify any possible issues at the earliest opportunity. The high speed laser scanner has a wide range of view and utilises echo digitisation and online waveform analysis to achieve superior performance and accuracies of measurement. Achieving accuracies of 3 mm at ranges of up to 600 m the VZ-400 can capture up to 122 000 points per second with a 100 x 360˚ field of view.

Contacts Charlie Whyman, 3D Laser Mapping, charlie.whyman@3dlasermapping.com

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