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CMS INSPECTION CASE STUDIES
CASE 1: Ore pass lifespan predictions
Using the BlackMap 3D scanner, we scanned an entire ore pass for a client. By descending into the bin we were able to collect an un-shadowed 3D scan of the entire bin. The following year we re-scanned the pass and overlaid the two data sets. Using special software, we were able to generate a report showing intuitively the exact locations where the bin was being worn from muck being discharged into the bin as well as failures due to ground stresses. This allowed the client to make accurate predictions on the life of the ore pass and how to extend its life by way of a muck cushion. We have performed this service to a large amount of clients in various iterations.
CASE 2: Alamac raise climber
A vent raise was in need of ground support so a local contracting company was going to descend an Alamac raise climbing platform into the raise to bolt and screen. There were concerns that due to ground failures the contractors’ personnel were not going to be able to reach the raise walls from the deck of the Alamac, thereby not being able to complete the job. We scanned the entire raise from the collar. Following this we scanned in high detail the actual Alamac platform and carrier. In software we were able to descend the 3D model of the Alamac down the raise virtually and identify the greatest distance at any given point in the raise from the deck to the walls prior to installing and Alamac rail. This determined the feasibility of the project prior to ever having installed any of the required infrastructure to complete the work, avoiding unnecessary expenditures.
CASE 3: Head cover analysis
A local contracting company had planned work in a chute at the bottom of an ore bin. A head cover of a certain thickness was required for the job. We scanned the bin and provided an accurate volume of concrete required to achieve the head cover thickness needed. This was not possible using the conventional equipment of the surveying department because the chute was inaccessible. This had large safety benefits which can have significant costs associated if these issues are not properly addressed.
CASE 4: Corrugated tube ground support in vent raise
A contractor was to install 5 foot sections of corrugated steel tube sections into a vent raise driven with a raisebore. There was concern of squeezing which would cause issues with installing the tube. We scanned the entire vent raise and placed a representative model of the tube into the raise identifying the exact clearance along the entire raise. This showed areas of concern so that proper planning could be done before the work began preventing possible costly corrections mid-job.
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