The purpose of this paper is to establish a qualitative method to estimate the risk level (e.g. rating and ranking) resulting from mining activity. Risk is the product of two factors: probability of failure and cost of consequences. A resultant assessment scale matrix is then used to assign a risk index value which is directly proportional to the potential for excavation instability. A case study, the #1 Shear East orebody at Vale’s Garson Mine in Sudbury Ontario will be examined in this paper. A three-dimensional, elastoplastic, finite difference model (FLAC 3D) is presented for a mine development intersection situated 1.5 km below ground surface. The developed assessment scale matrix is used to estimate risk index for intersection (2981) located on 5000 level. The results are presented and categorized with respect to risk-index value, probability of instability, cost of consequence, and mining stage.
المشارك في البحث
قسم البحث
سنة البحث
2014
مجلة البحث
Journal of the Southern African Institute of Mining and Metallurgy (SAIMM).
الناشر
SAIMM Journal-ISSN 2225-6253
عدد البحث
114
تصنيف البحث
1
صفحات البحث
1-10
موقع البحث
The Journal of The Southern African Institute of Mining and Metallurgy (SAIMM)
ملخص البحث