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 one 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 determining the ultimate strength directly on the surface of rock outcrop (face, wall of excavation, roof) or at some distance from the excavation contour, in a borehole. However, these methods are imperfect, labor-intensive and complex ...
Область исследования:
(Archived) Without section
Funding:
None
References
- Baron L. I. On the Strength Indices of Rocks. Izv. AN SSSR. OTN, No. 11, 1948.
- Kashkarev K. P. Reference hammer for determination of concrete strength in products. Stroitel'stvo i arkhitektura, No. 5, 1960.
- Protodyakonov M. M., Voblikov V. S. Determination of rock strength on irregularly shaped samples. Ugol', No. 4, 1957.