Evaluation of dynamic stress distribution in a rock mass during breaking by blasting
Journal Article
·
· Sov. Min. Sci. (Engl. Transl.); (United States)
OSTI ID:5433408
Actual observations and specific calculations indicate that the stressed state of a rock mass close to underground structures depends to a considerable extent on shape. A typical feature of the drilling and blasting method for breaking is rapid failure of a certain volume of rock which leads to a change in the shape of the working and consequently to dynamic stress redistribution. This transition process may promote the occurrence of rock bursts. On the basis of solving problems within the limits of elasticity theory a study is made of the stressed state of a rock mass with an instantaneous change in the cross section of a working.
- Research Organization:
- Institute of Mining, Alma-Ata (USSR)
- OSTI ID:
- 5433408
- Journal Information:
- Sov. Min. Sci. (Engl. Transl.); (United States), Journal Name: Sov. Min. Sci. (Engl. Transl.); (United States) Vol. 22:6; ISSN SMNSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
012030* -- Coal
Lignite
& Peat-- Underground Mining-- (1987-)
BLAST EFFECTS
COAL DEPOSITS
COAL SEAMS
COMMINUTION
DYNAMIC LOADS
ELASTICITY
ENGINEERING
EXPLOSIONS
EXPLOSIVE FRACTURING
FRACTURE MECHANICS
FRACTURING
GEOLOGIC DEPOSITS
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
MECHANICS
MINERAL RESOURCES
MINING
MINING ENGINEERING
PRESSURE EFFECTS
RESOURCES
ROCK MECHANICS
ROCKS
STRESS ANALYSIS
STRESSES
TENSILE PROPERTIES
UNDERGROUND EXPLOSIONS
UNDERGROUND MINING
WORKING FACES
012030* -- Coal
Lignite
& Peat-- Underground Mining-- (1987-)
BLAST EFFECTS
COAL DEPOSITS
COAL SEAMS
COMMINUTION
DYNAMIC LOADS
ELASTICITY
ENGINEERING
EXPLOSIONS
EXPLOSIVE FRACTURING
FRACTURE MECHANICS
FRACTURING
GEOLOGIC DEPOSITS
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
MECHANICS
MINERAL RESOURCES
MINING
MINING ENGINEERING
PRESSURE EFFECTS
RESOURCES
ROCK MECHANICS
ROCKS
STRESS ANALYSIS
STRESSES
TENSILE PROPERTIES
UNDERGROUND EXPLOSIONS
UNDERGROUND MINING
WORKING FACES