Opencast mine parameters sensitivity analysis at preliminary study of a mining project
- 1 — National Mineral Resources University (Mining University)
- 2 — National Mineral Resources University (Mining University)
Abstract
The article describes sensitivity analysis, aimed at variables dependence detection: to what extent open cast mine ultimate efficiency or performance will be affected when one of the key input variables is changed. The stronger the dependence effect, the higher the project implementation risk. The sensitivity analysis objective is demonstrated – principle factors identification – critical variables, capable of having a serious influence on the project implementation results, and impact verification of progressive (single) factorial changes. Sensitivity analysis in its content is a single-factor analysis. Output, as a basic performance indicator of an open cast mine, characterizes mine development intensity and is determined by mining-engineering and economic factors. It is proved that the impact degree from various parameters on the open cast mine output is characterized by elasticity ratio. The project indicators sensitivity analysis, which was carried out, allowed to establish the impact degree that various parameters have on the open cast mine output, which takes place in a high-angle ore deposit, characterized by elasticity ratio.
References
- Арсентьев А.И. Производительность карьеров / Санкт-Петербургский горный институт. СПб, 2002. 85 с.
- Трубецкой К.Н. Проектирование карьеров: Учеб. для вузов: В 2 т. / К.Н.Трубецкой, Г.Л.Краснянский, В.В.Хронин. М.: Изд-во Академии горных наук, 2001. Т.1. 519 с.
- Фомин С.И. Производительность карьеров и спрос на минеральное сырье. СПб: Изд-во «Тема», 1999. 169 с.
- Фомин С.И. Оценка эффективности инвестирования открытой разработки сложноструктурных месторождений / С.И.Фомин, П.Б.Кава // Горный информационно-аналитический бюллетень. 2011. № 5. С.312-316.
- Фомин С.И. Оценка риска принятия решений при проектировании карьеров / С.И.Фомин, А.С.Семенов // За-писки Горного института. 2007. Т.173. С.56-60.
- Фомин С.И. Оценка эффективности принятия проектных решений / С.И.Фомин, Д.В.Пасынков, А.С.Семенов // Записки Горного института. 2009. Т.180. С.12-15.
- Hill J.H. Geological and economical estimate of mining projects. London, 1993. 85 p.
- Hustrulid W.A. Open Pit Mine Planning & Design / W.A.Hustrulid, M.E.Kuchta // CRC Press. 2006. 971 p.
- Hustrulid W.A. Open Pit Mine: Planning & Design / W.А.Hustrulid, M.E.Kuchta. Rotterdam, Brookfield, VT: A.A.Balkema, 1998. 735 p.
- Schröder D.L. Large surface miners – applications and cost calculations // Krupp Fördertechnik GmbH, Essen, Germany, February, 1999. P.1-6.
- Fomin S.I. The Mining technology of a thick overburden layer covering a group of flat dipping coal seams // S.I.Fomin, D.А.Vedrova // Mine planning and equipment selection. Dresden, Germany, Springer. 2013. Vol.1. P.75-81.
- Fomin S.I. Risk analysis method for opencast mining project // Annual. University of mining and geology St. Ivan Rilski. Sofia, 2012. Part 2. Vol.55. P.23-28.