Zobrazeno 1 - 10
of 77
pro vyhledávání: '"S. V. Muchnik"'
Autor:
S. V. Muchnik
Publikováno v:
Journal of Mining Science. 48:110-113
Based on the description of the commercial test results, it is shown that the turbo-blasting with linear priming of granular explosive charges allows resetting the blasting-raised bench bottom to the design position within a single cycle of drilling-
Autor:
S. V. Muchnik
Publikováno v:
Journal of Mining Science. 47:460-466
Short-delay blasting excites the Rayleigh waves over the surface of open pit walls. The author shows that interference of these waves generates an extended neutral seismicity zone behind the first positive halfwave in the distribution diagram of the
Autor:
S. V. Muchnik
Publikováno v:
Journal of Mining Science. 46:650-655
Large-scale blasting induces Rayleigh waves. It is possible to make these waves interfere and to form their crest by choosing a proper range of blast delays. The positive half-wave propagation over a projected loosening zone of every next detonated s
Autor:
S. V. Muchnik
Publikováno v:
Journal of Mining Science. 45:459-467
The paper demonstrates that massive blasting at open pits with using the nonelectric initiation system SINV (analog of Nonel) generates free surfaces where the Rayleigh waves arise, that improve loosening of the shattered rock mass.
Autor:
S. V. Muchnik
Publikováno v:
Journal of Mining Science. 44:554-558
The author describes the construction of an explosion booster composed of a waveguide and a membrane. The booster is placed at the bottom of a blast hole and is initiated by detonation wave. Experimental underground tests of explosion boosters showed
Autor:
S. V. Muchnik, A. N. Grishin
Publikováno v:
Journal of Mining Science. 42:251-256
The results are presented for stand testing of processes that take place in charging holes by cartridges of hydrolabile explosives with permeating and insulating covers. Parameters of hole capacity, water level rise at charging, contact ratio for wat
Autor:
S. V. Muchnik
Publikováno v:
Journal of Mining Science. 41:427-435
The causes of changing temperature of gaseous energy-carrier under explosive loosening of a rock mass are considered. An equation is proposed to calculate the temperature of detonation products in a state of relaxation.
Autor:
S. V. Muchnik
Publikováno v:
Journal of Mining Science. 35:502-518
An expanded representation is given for the law of pulse conservation with transition through a shock front taking account of the thermal component of pressure. Equations of state for detonation products in the vicinity of the Chapman-Jouguet plane d
Autor:
S. V. Muchnik
Publikováno v:
Journal of Mining Science. 35:160-171
The detonation of individual solid explosives of CaHbOcNd type is described by introducing the concept of a nonthermal potential as the sum of several types of energy—chemical energy, elastic compression, the electron state of the molecules, and th
Autor:
S. V. Muchnik
Publikováno v:
Journal of Mining Science. 34:230-241
Coefficients that characterize the relative compression of the substance in the CJ plane and on the shock front of the detonation wave are found by means of Eqs. (8).