Wave action of a borehole charge exploded near the free surface

Authors
Nazarov, LA
Citation
La. Nazarov, Wave action of a borehole charge exploded near the free surface, J MIN SCI, 35(1), 1999, pp. 43-50
Citations number
17
Categorie Soggetti
Geological Petroleum & Minig Engineering
Journal title
JOURNAL OF MINING SCIENCE
ISSN journal
10627391 → ACNP
Volume
35
Issue
1
Year of publication
1999
Pages
43 - 50
Database
ISI
SICI code
1062-7391(199901/02)35:1<43:WAOABC>2.0.ZU;2-R
Abstract
The method of integral transform actions is used to solve the problem of th e explosion of a cylindrical charge in a rock mass when the charge is locat ed near the free surface. Angular diagrams are obtained to describe the dis tribution of the velocities of the surface displacements upon the arrival o f longitudinal and transverse waves. A formula is proposed to determine mas s velocity at the front of the blast wave on the basis of data recorded on the free surface.