Estimation of strength of horizontal excavation sides by the condition of detachment of near-contour zones of the rock mass
Authors:
Abstract
It is known that rock in the sides of horizontal workings is destroyed either by shear along one or another sliding surface or by detachment of the near-contour zones of the rock mass along vertical surfaces. Failure by shear is well explained from the standpoint of the theory of limit equilibrium of a cohesionless medium. The second possible type of failure — detachment of near-contour zones — has so far no clear explanation.
Область исследования:
(Archived) Without section
Funding:
None
References
- Avershin S. G. Shifting of Rocks in Underground Mining. Ugletekhizdat, 1947 (in Russian)
- Ardashev K. A. et al. Improvement of Rock Pressure Control in the Development of Inclined and Steep Seams. M., Nedra, 1967 (in Russian)
- Gmoshinsky V. G. Rock pressure on a gently dipping coal seam in the vicinity of a working. Ugol, 1957, No. 6 (in Russian)
- Dinnik A. N., Savin G. N., Morgaevsky A. B. Distribution of Stresses around Underground Mine Workings. Tr. soveshchaniya po upravleniyu gornym davleniem Izd-vo AN SSSR, 1938 (in Russian)
- Melnikov O. I. On the method of calculating support pressure ahead of the stoping face when mining a thick steep seam with shields. Gornyi Zhurnal, Izvestiya vuzov , 1964, No. 7 (in Russian)
- Mordukhovich M. M., Timofeev O. V. Estimation of stability of the sides of horizontal workings and calculation of the zone of inelastic deformations. Gornyi Zhurnal, Izvestiya vuzov , 1970, No. 3 (in Russian)
- Snitko N. K. Stability of rod systems in the elastic-plastic region. L., Stroyizdat, 1968 (in Russian)
- Timofeev O. V., Mordukhovich M. M. Temporary Guidelines for the Application of Rock Bolting in Development Workings at Kuzbass Mines. Izd. LGI , 1971 (in Russian)
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