- 1. Energy efficient technologies for the mining industry
- (Content №6 2022)
- ... of the rock mass occurs at stresses lower than the rock ultimate strength. This leads to an increase in the rate of penetration, high-quality disintegration of well productive zones and an increase in ...
- Created on 25 December 2022
- 2. Determination of vertical dynamics for a standard Ukrainian boxcar with Y25 bogies
- (Content №5 2021)
- ... M.E. (2019). Relationships between the ultimate strengths of polymer composites in static bending, compression, and tension. Mechanics of Composite Materials, 52(2), 259-266. 18. Dio, J., Steiunas, S., ...
- Created on 29 October 2021
- 3. The method for determining the parameters of the diagrams of a truncated-wedge destruction of cylindrical samples of rocks
- (Content №1 2021)
- ... modeling makes it possible to determine the ultimate strength and residual strength of cylindrical rock samples using four property indicators that can be experimentally established by simple methods. ...
- Created on 05 March 2021
- 4. Improvement of sub-level caving mining methods during high-grade iron ore mining
- (Content №1 2021)
- ... the angle of ore tapping on the intensity of the ore drawing and the ultimate strength of the ore for uniaxial compression have been established as well as dependencies of the increase in the volume of ...
- Created on 05 March 2021
- 5. Determining the qualitative composition of the equivalent material for simulation of Kryvyi Rih iron ore basin rocks
- (Mining)
- ... with the increasing percentage of paraffin in the equivalent material. Originality. For the first time, there have been determined empirical dependencies of Poisson’s ratio and ultimate strength ...
- Created on 27 August 2018
- 6. Prediction of spacing of primary roof caving of hard roof at development of gently dipping anthracite beds in deep mines
- (Mining)
- ... ultimate strength of the immediate roof and the main one to their height has been determined. It allowed us to im-prove the accuracy of the assessment of the degree of breaks in considered work environment. ...
- Created on 17 October 2013
- 7. The improvement of method of computation of the contact normal tensions distribution at compression of rock samples
- (Geotechnical and mining mechanical engineering, machine building)
- ... This parameter is defined – ultimate strength – on the special presses, which are available in specialized institutions. However, the companies need operative calculated method for measuring parameter ...
- Created on 13 August 2013
- 8. Experimental-industrial verification of maintenance method using rigid constructions with countervailing cavities in the mine “Scheglovskaya-Glubokaya”
- (Mining)
- ... – М.: Изд-во стандартов. GOST 21153.2-84. “Rock. Methods for determination of ultimate strength in uniaxial compression”, Valid since January 7, 1986, Izd-vo standartov, Moscow, Russia. ...
- Created on 19 December 2012
- 9. Influence of the surface-active substances implementation in the rock failure area on the intensity of rock crushing by means of the pulse loads
- (Geotechnical and mining mechanical engineering, machine building)
- ... reduced ultimate strength of the rock undergoing the static loadings by 23–25% at an average. The obtained results show that the rock strength declines dramatically because of diminishing of the surface ...
- Created on 12 November 2012