Method of normal load prediction on vertical shaft lining based on nonlinear behaviour of rock mass
About authors
- 1 — National Mineral Resources University (Mining University)
- 2 — 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.
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