Determination of rock strength limit in mine conditions
Abstract
The initial parameters in solving problems related to the manifestations of rock pressure are rock strength indicators. The main of them is the compressive strength. As a rule, it is determined in the laboratory on samples of the rocks under study. There are also known production methods that allow to determine the ultimate strength directly on the surface of rock outcrop (face, wall of excavation, roof) or at some distance from the contour of excavation, in a borehole. However, these methods are imperfect, labor-intensive and complex ...
Область исследования:
(Archived) Without section
References
- Baron L. I. On the Strength Indices of Rocks. Izv. of the AS USSR. OTN, NO. 11, 1948.
- Kashkarev K. P. Reference hammer for determination of concrete strength in products. Construction and Architecture, No. 5, 1960.
- Protodyakonov M. M., Voblikov V. S. Determination of rock strength on irregularly shaped samples. Ugol, No. 4, 1957.
Similar articles
Determination of bearing capacity of inter-chamber potash pillars in case of hydrofilling of chambers.
1966 E. P. Sivokon
Estimation of bearing capacity of supporting pillars during in-situ leaching of thick salt deposits (in conditions of Yar-Bishkadak brine field).
1966 V. S. Romanov, A. A. Yanishevsky
Stresses in the massif disturbed by large-diameter wells (photoelastic study)
1966 N. M. Proskuryakov, A. A. Yanishevsky