Estimate of the dispersivity of rock crushing in the zone of demolition of mine workings by the action of an explosion
Journal Article
·
· Sov. Min. Sci. (Engl. Transl.); (United States)
OSTI ID:5651494
The authors consider the problems of modeling the process of collapse of extended mine workings on plane models. Their derivation has been effected on the basis of the model of the ground and criteria of its demolition. It is assumed that in order to ensure similarity of crushing, equality of the amount of fissures developed in the natural state and the model is necessary. An analysis of the dependence of the average size of a ''lump'' in the demolition zone on the magnitude of the maximum stress in the wave, carried out by the method of least squares, showed that it can be represented quite well in the form of two intersecting straight lines.
- Research Organization:
- V.V. Kuibyshev Military - Engineering Academy, Moscow
- OSTI ID:
- 5651494
- Journal Information:
- Sov. Min. Sci. (Engl. Transl.); (United States), Journal Name: Sov. Min. Sci. (Engl. Transl.); (United States) Vol. 21:4; ISSN SMNSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
58 GEOSCIENCES
580300 -- Mineralogy
Petrology
& Rock Mechanics-- (-1989)
BLAST EFFECTS
CAVING
COMMINUTION
CRACK PROPAGATION
ENGINEERING
EXPLOSIVE FRACTURING
FRACTURE MECHANICS
FRACTURING
LEAST SQUARE FIT
MATHEMATICAL MODELS
MAXIMUM-LIKELIHOOD FIT
MECHANICAL STRUCTURES
MECHANICS
MINE ROADWAYS
MINING
MINING ENGINEERING
NUMERICAL SOLUTION
ROCK MECHANICS
ROOFS
SEISMIC EFFECTS
SEISMIC WAVES
STRATA CONTROL
STRESS ANALYSIS
SUPPORTS
TUNNELS
UNDERGROUND FACILITIES
UNDERGROUND MINING
012000* -- Coal
Lignite
& Peat-- Mining
58 GEOSCIENCES
580300 -- Mineralogy
Petrology
& Rock Mechanics-- (-1989)
BLAST EFFECTS
CAVING
COMMINUTION
CRACK PROPAGATION
ENGINEERING
EXPLOSIVE FRACTURING
FRACTURE MECHANICS
FRACTURING
LEAST SQUARE FIT
MATHEMATICAL MODELS
MAXIMUM-LIKELIHOOD FIT
MECHANICAL STRUCTURES
MECHANICS
MINE ROADWAYS
MINING
MINING ENGINEERING
NUMERICAL SOLUTION
ROCK MECHANICS
ROOFS
SEISMIC EFFECTS
SEISMIC WAVES
STRATA CONTROL
STRESS ANALYSIS
SUPPORTS
TUNNELS
UNDERGROUND FACILITIES
UNDERGROUND MINING