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Whimis Training (#776)
2000.1-0021-035 · File · 1988-1989
Part of Cassiar Asbestos Corporation Ltd. fonds

File contents relate to: Mine Maintenance Issues, Cassiar Mine - operation and administration, Personnel / Human Resources. Document type(s) include: report. Notes: budget for projects.

Water control structures
2000.1.1.2.10 · File · Sep. 1991
Part of Cassiar Asbestos Corporation Ltd. fonds

File contains 3 strips of negatives depicting water control structures inluding pipes, culverts, and holding ponds. The strips were found in a photo lab pouch annotated "Sedimentation Pond Sept 1991" and addressed to "Cassiar Mining Corp. Attn; R. Tyne."

2000.1.1.3.10 · File · November 1990 - June 1991
Part of Cassiar Asbestos Corporation Ltd. fonds

File contains images depicting the underground mine at Cassiar, showing structural damages, repaired damage ground support, and mining and repair processes.

The file contains a photo inventory entitled “Underground Mine Structural Inspection, Rock Mechanics Dept. Foto Documentation” with a complete file inventory linking the picture number to a location, title, and dated film. This photographic documentation was assembled for the purposes of liaising with a underground mining consultant located in South Africa.

  • Images document structural ground support including steel cables, support arches, metal mesh, shotcrete, rockbolts, wooden beams.
  • Images show ground support damaged through ground movement, but some depict newly installed or repaired support.
  • Images depict ventilation ducting that was crushed or torn.
  • Mining processes depicted include miners installing a rock breaker, miners paving the adit floor with concrete, miners inspecting a damaged section of mine, miner loading drill or blastholes with ANFO (ammonium nitrate / fuel oil mixture) explosives, and long hole drilling.
  • Technical elements of the underground mine depicted include a mining device and ore in a chute (annotated ‘1290 crusher’), the conveyor, ‘LH drill’, ore processing machine annotated ‘1350 breaker’, and an electrical box titled ‘Weighometer’.
  • Specific locations shown include ore draw points, ore passes, access drifts, a hatch and door titled “Fuel station 1415”, and a dead end drift with a stack of equipment and an orange cable annotated “1335 access electrical stations”.
Underground mine
2000.1.1.3.09 · File · 1988-1992
Part of Cassiar Asbestos Corporation Ltd. fonds

This file contains various aspects of the underground mine.

  • Photos depicting damage to the underground mine such as fallen rocks, cracked shotcrete, twisted rock bolts and metal mesh, exposed and damaged steel structural frames, and repairs underway.
  • Steel cables, chains, support arches, and custom welded rebar frames used in the structural reinforcement of the underground mine.
  • Several engineering tests related to the structural damages are depicted.
  • Two sets of images show a Porta Power hydraulic tool with a ready rod attached, a hand pump, as well as images of a technician testing the holding power of a rock bolt.
  • Set of images documents a technician drilling cores and installing extensometer anchors, as well as grouting the anchors and connecting an extensometer. Technicians are shown inspecting damages with a ruler and rockhammer for scale.
  • A set of images showcase the threaded rebar, nuts, and face plates used for rockbolts.
  • Utility vehicles, yellow vent ducting, and utility pipes are visible in several images.
  • Also include is an image of a man in office space, foggy night scene with a telephone pole, office desk, stack of supplies including concrete, steel cable, and spray paint, and several images of a broken piece of ore and concrete outside the mine portal.
  • Several images depict miners working in the bucket of a scoop tram.
  • Photos of the stramler feeder breakers, which was used in the underground mine.
  • Images of ground support verifications where the deficiency of the exhaust ramp was investigated. This collection has various annotations explaining the broken shotcrete and the wire mesh installed.
  • A collection of photographs depicting tunnel shotcrete failures. Each photograph has an accompanied textual annotation.
  • Photos of MMD #750 Sizer equipment - assumed used in Underground Mine.
  • Photos of pump used in 1335 level, wheel fan for ventilation removed from 1350 level,
  • A collection of ground fall event 29 March 1989 - with annotations depicting damage
Trucks
2000.1-0044-023 · File · Dec. 1983
Part of Cassiar Asbestos Corporation Ltd. fonds

File contents relate to: Mine Maintenance Issues, Cassiar Mine - operation and administration. Document type(s) include: correspondence.