Photoelastic study of the influence of irregularities in the rock contour of horizontal workings on the stress state of the near-contour zone of the rock mass
Abstract
At present, considerable experience in experimental and theoretical studies of stress distribution around workings of different cross-sectional shape has been accumulated. Most of these studies have been carried out with reference to workings with a smooth contour; however, it is known that the drilling and blasting method of sinking produces an irregular contour of the working. The technological irregularities formed in this process, as well as rock falls occurring in some cases, cause a redistribution of stresses with the formation of zones of increased stress concentration. Under field conditions it is difficult to determine the magnitude of stress concentration in these zones. Therefore, studies are usually carried out on models.
Область исследования:
(Archived) Without section
Funding:
None
References
- Bugakov I. I., Smirnova S. V. On the stressed state in a tensile plane with a cut under creep conditions. In the book: Studies on Elasticity and Plasticity, coll. 7. Izd. LGU, 1967 (in Russian)
- Dinnik A. N., Morgaevsky A. B., Savin G. N. Distribution of stresses around underground mine workings. Tr. soveshchaniya po upravleniyu gornym davleniem l. Izd. AN SSSR , 1938 (in Russian)
- Savin G. N. Concentration of Stresses around Holes. GIT L, 1951 (in Russian)
- Trumbachev V. F. Distribution of stresses around mine workings. Ugletekhizdat, 1956 (in Russian)
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