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Vol 64 Iss. 1
Pages:
108-117
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RUS
Article

Estimation of strength of horizontal excavations sides by condition of detachment of rock mass near the contour zones

Authors:
M. M. Mordukhovich
Date submitted:
1973-07-30
Date accepted:
1973-09-10
Date published:
1974-01-01

Abstract

It is known that the rocks in the sides of horizontal excavations are destroyed either by shearing on one or another sliding surface or by tearing off the near-contour zones of the massif on vertical surfaces. Fracture by shear is well explained from the position of the theory of limit equilibrium of a cohesive bulk medium. The second possible type of fracture - detachment of contour zones has no clear explanation.

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References

  1. Avershin S.G. Shifting of Rocks in Underground Mining. Ugletekhizdat, 1947.
  2. Ardashev K.A. et al. Improvement of Mountain Pressure Management in the Development of Inclined and Steep Strata. M., Nedra, 1967.
  3. Gmoshinsky V.G. Mining pressure on a hollow coal seam in the vicinity of a workings. Ugol, 1957, No. 6.
  4. Dinnik A.N., Savin G.N., Morgaevskiy A.B. Distribution of Stresses around Underground Mine Workings. Proceedings of the Meeting on Mountain Pressure Control. 1938.
  5. Melnikov O.I. About the Method of Calculation of the Support Pressure in Front of the Clearing Face at Mining of a Powerful Steep Bed by Shields. Mining Journal, University Proc., 1964, No. 7.
  6. Mordukhevich M.M., Timofeev O.V. Estimation of stability of the sides of horizontal workings and calculation of the zone of inelastic deformations. Mining Journal, University Proc., 1970, No. 3.
  7. Snitko N.K. Stability of rod systems in elastic-plastic region. L., Stroyizdat, 1968.
  8. Timofeev O.V., Mordukhovich M.M. Temporary Guidelines for the Application of Rod Support in Preparatory Excavations at Kuzbass Mines. PH LMI, 1971.

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