FIELD: blasting operations.
SUBSTANCE: invention relates to explosive substances (ES) charges formation in wells and can be used during blasting upward boreholes charging, regardless of their watercut degree, on underground mining works for extraction of minerals. Method of blasting upward boreholes charging, including live primer location in well upper part with subsequent well filling with ES and formation, or not, of stemming below ES. In well upper part above live primer drain cavity is created, by arranging plug with drain tube in well, wherein tube lower end, after charge formation, is located below charge.
EFFECT: invention allows to ensure stability of ES charge column under conditions of large water influx.
1 cl
Title | Year | Author | Number |
---|---|---|---|
METHOD OF FORMATION OF EXPLOSIVE CHARGE | 2015 |
|
RU2596212C1 |
EXPLOSIVE CHARGE FORMATION METHOD | 2009 |
|
RU2416781C1 |
METHOD OF BLASTING FOUNDATIONS | 2008 |
|
RU2375673C1 |
DEVICE FOR CHARGING RISING WELLS AND METHOD OF CHARGING | 2018 |
|
RU2709123C1 |
METHOD FOR LOADING WATERED RISING WELLS | 2008 |
|
RU2362970C1 |
METHOD FOR DETECTION OF RELATIVE SERVICEABILIYT OF EXPLOSIVES AT OBJECT OF BLAST-HOLE DRILLING | 2008 |
|
RU2376551C1 |
METHOD TO MAKE EXPLOSIVE CHARGE | 2008 |
|
RU2381437C1 |
BLAST INITIATOR FOR BLASTING OF INDUSTRIAL EXPLOSIVES (MODIFICATIONS) | 2005 |
|
RU2285230C1 |
METHOD OF INCREASING WARHEAD POWER | 2012 |
|
RU2491499C1 |
PRIMING CARTRIDGES AND INTERMEDIATE DETONATORS IN EXPLOSIVE WELLS FIXING AND INSTALLATION CONTAINER | 2018 |
|
RU2678280C1 |
Authors
Dates
2017-01-10—Published
2015-12-18—Filed