Geotechnical block modelling at BHP Billiton Cannington Mine

摘要

A geotechnical block model, based on drillhole geotechnical logs was created for the BHP Billiton Cannington lead-zinc-silver mine in North Queensland, Australia. The purpose of the model is to assist the Geotechnical Engineer in medium to long term planning of support costs and mining rates. The first run of the model, as described, was essentially a proof-of-concept trial to test the validity of using numerical interpolation as a means of estimating rock mass conditions. The model output provided insights into the large-scale structure of the Cannington rock mass, and has proved that the block model concept can provide a useful tool in mine planning. The model is currently in the early stages of integration into Cannington's mine planning process.