- 41. The study of dynamics of development of deformation processes and crack formation in the rock massif around the working which is supported under a longwall
- (Mining)
- ... №1(30). – С. 299–304. Malysheva, N.N. and Sakhno, I.G. (2012), “Efficiency improvement of a mine opening protection through active stressing of protective facilities”, Visti Donetskoho Hirnychoho ...
- Created on 14 January 2015
- 42. Estimation of geomechanical parameters of the “pair workings-pillar-working face” system
- (Mining)
- ... that compression stress in the pillar from the side of coal-cutting working under the conditions of advancing face heading behind longwall opening reaches the value of σу=2,5γН. Practical value. The ...
- Created on 11 May 2014
- 43. Mathematical model of mine vertical opening stability
- (Mining)
- ... the stability of the equilibrium state of the bottom of stope in vertical opening located in kimberlite rock taking into account the equilibrium of the infinite space of the cavity under the load at a ...
- Created on 16 April 2013
- 44. Research of productivity of drilling tools when driving main crosscut of horizon of the second stage of opening
- (Mining)
- ... productivity of drilling tools which allows providing required speed of mine working driving increases as far as duration of building of horizon of the second stage of opening reduces, thus the drilling ...
- Created on 05 January 2013
- 45. Technological parameters and circuits of development at final stage of opening of deposits of rocky building materials
- (Mining)
- ... technological circuits of their development and opening with use of mobile (mobile) crushers have been considered. A substantiation of circuits in concordance with industrial and economic criteria (duration ...
- Created on 25 December 2012
- 46. Research deformation behavior of the grouted fissured rocks
- (Construction of mines and underground facilities)
- ... opening were set, their 3–10-fold increase which rises stability of rock massif was shown. ...
- Created on 25 December 2012
- 47. Substantiation of the tendencies of metal consumption decrease for frame-anchor support of a seam opening in layered massif of weak rocks
- (Mining)
- Authors: Bondarenko V.I., Kovalevska I.A., Symanovych H.A., Koval O.I., Vivcharenko O.V. The researches data of stress and strain system «rock massif – support» during development ...
- Created on 24 December 2012
- 48. Determination of filling parameters for protective stripes of variable rigidity at the combined system of development of declivous coal seams on deep horizons
- (Mining)
- Authors: Medianyk V.Yu., Yavorskyi A.V. The questions of safety and maintenance of the preparatory openings on deep horizons using combined mine system are examined. The ...
- Created on 24 December 2012
- 49. Research of influence of borehole length when use a drill and fire system of driving on behavior of gas-dynamic processes in the coalface of working
- (Mining)
- Authors: Krukovska V.V., Krukovskyi O.P., Vynohradov Yu.O. Numerical modeling of process of coal and methane outburst in a working face of single opening, what is driving ...
- Created on 21 December 2012
- 50. Substantiation of flowsheets of experimental mine gas generator
- (Mining)
- ... technological schemes of underground coal gasification are considered. After conducted researches are set that the coal seam opening by two vertical boreholes and mechanical crosscut from the underground ...
- Created on 21 December 2012