Method of normal load prediction on vertical shaft lining based on nonlinear behaviour of rock mass
About authors
- 1 — Ph.D., Dr.Sci. professor National Mineral Resources University (Mining University)
- 2 — post-graduate student National Mineral Resources University (Mining University)
Abstract
Method of normal load prediction on vertical shaft lining which is constructed in nonlinear rock mass is suggested. It is supposed, that limit state zone is formed around excavation. The deformation properties of rock mass in the suggested method are determined according to nonlinear rock model. In order to predict stress and strain state around excavation the equations of deformation plasticity theory are used. The Mohr-Coulomb strength criteria is taken as a yield surface.
References
- Булычев Н.С. Расчет крепи капитальных горных выработок / Н.С.Булычев, Б.З.Амусин, А.Г.Оловянный. М.: Недра, 1974. 381 с.
- Ставрогин А.Н. Пластичность горных пород / А.Н.Ставрогин, А.Г.Протосеня. М.: Недра, 1979. 301 с.
- Трушко В.Л. Геомеханика массивов и динамика выработок глубоких рудников / В.Л.Трушко, А.Г.Протосеня, П.Ф.Матвеев, Х.М.Совмен. Санкт-Петербург. горный ин-т. СПб, 2001. 393 с.
Similar articles
Assessment of the longwall face length influence on gas emission at longwall panels of the OJSC «Vorkutaugol» coal mines
2014 O. I. Kazanin, A. M. Sufiyarov
Mining units quantity determination to achieve the established open cast output and averaging ore requirements
2014 S. I. Fomin, V. A. Shevelev, M. A. Marinin
Influence of disjunctive dislocations on parameters of secure zones on flat-lying adjacent coal seams
2014 V. P. Zubov, E. R. Kovalskii, A. V. Nikiforov
About the long-range programme for industrial and ecological safety in coal branch of industry
2014 V. V. Smirnyakova