Action of the explosion of a blast hole charge in the design of a direct cut with a compensation hole

Autor:	É. P. Taran, V. Ya. Shapiro
Rok vydání:	1982
Předmět:	Physics Fuse (automotive) business.industry General Engineering Geology Charge (physics) Structural engineering Geotechnical Engineering and Engineering Geology Action (physics) Compensation (engineering) Cartridge Mining engineering business Rock blasting Stoping
Zdroj:	Soviet Mining Science. 18:119-122
ISSN:	1573-8736 0038-5581
DOI:	10.1007/bf02528513
Popis:	i. Experimental Studies. To find the factors governing the effects of an explosion of a blast hole charge in the design of a burnout cut, experiments were conducted at Tishinskii mine; one on a proving ground in cutting of mining workings, and another in ore stoping with the use of self-propelled equipment. The hardness f of intersected rocks and ores varied over the range 7-15. Holes of depth 1.75-2.4 m were made with a manual perforator PR-27; while holes 2.4-3.0 m deep were made with track-mounted drills of the Cavodrill 555D and Minimatic types. Ammonite cartridges 6ZhV of diameter 0.036 m were used. Blasting was done with inverse initiation, using both fuse initiation and electric firing.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cbf955f7dd5c3d8b160e1679157a4650 https://doi.org/10.1007/bf02528513 Zobrazit plný text záznamu Full text from SpringerLink