Back to Search
Start Over
Uncertainty-based push-back design algorithm in open pit mining.
- Publication Year :
- 2007
-
Abstract
- A parametric method is described which incorporates grade uncertainty in the push back design process. The important characteristics of the method are that high grade zones with low uncertainty are selected for extraction in earlier production periods, high grade zones with medium uncertainty may also be selected for extraction in earlier production periods, high-grade zones with high uncertainty are left to be extracted during the mid-life of the mine, low- to medium-grade zones with low uncertainty may also be extracted during the mid-life of the mine and low- to medium-grade zones with high uncertainty are left to be extracted towards the end of mine life. The number of push backs generated is greater than that using Whittle's method and the achievable, rather than theoretical, net present value is also higher.<br />A parametric method is described which incorporates grade uncertainty in the push back design process. The important characteristics of the method are that high grade zones with low uncertainty are selected for extraction in earlier production periods, high grade zones with medium uncertainty may also be selected for extraction in earlier production periods, high-grade zones with high uncertainty are left to be extracted during the mid-life of the mine, low- to medium-grade zones with low uncertainty may also be extracted during the mid-life of the mine and low- to medium-grade zones with high uncertainty are left to be extracted towards the end of mine life. The number of push backs generated is greater than that using Whittle's method and the achievable, rather than theoretical, net present value is also higher.
Details
- Database :
- OAIster
- Notes :
- und
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1309274421
- Document Type :
- Electronic Resource