Title:

Investigation Of The Effect Of The Cast Booster With Cumulative Effect On Arrays With The Presence Of Solid Inclusions

Group publication title:

Mining Science

Creator:

Mollova, Zdravka

Subject and Keywords:

górnictwo ; geologia ; geoinżynieria ; cast booster ; cumulative charges ; blast hole ; solid inclusions

Description:

Mining Science, Vol. 31, 2024, s. 249-257

Abstrakt:

The object of research in the present article is the intensification of the fragmentation of mas-sifs with hard inclusions, by means of dispersed and additional drilling, using cast boosters with cumulative lining. The article presents the obtained dependences of the change in the depth of destruction of solid inclu-sions, depending on the length of the cumulative jet, its density and the strength of the solid inclusion, which allow to develop a methodology for engineering calculation of the parameters of the drilling-explosive works and the sequence of initiating the charges. The use of cast boosters with a cumulative -funnel, located in the lower part of the borehole, allows, at the expense of managing the action of the blast energy on the lower layers of the blasted massif, to reduce the average size of the fragments by 7.9% and by 1.6 times the resulting oversized fractions.

Publisher:

Wydział Geoinżynierii, Górnictwa i Geologii Politechniki Wrocławskiej

Place of publication:

Wrocław

Date:

2024

Resource Type:

artykuł

Resource Identifier:

doi:10.37190/msc243114

Source:

click here to follow the link

Language:

eng

Relation:

Mining Science ; Mining Science, Vol. 31, 2024 ; Prace Naukowe Instytutu Gornictwa Politechniki Wroclawskiej ; Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii

Rights:

Pewne prawa zastrzeżone na rzecz Autorów i Wydawcy

Access Rights:

Dla wszystkich zgodnie z licencją

License:

CC BY-NC 3.0 ; click here to follow the link

Location:

Politechnika Wrocławska