METHOD FOR TAMPING OF BLAST DOWN HOLES IN SINGLE BLASTS IN OPENCAST MINES

FIELD: blasting. ^ SUBSTANCE: invention is related to mining industry and construction, namely to methods for tamping of blast down holes in single blasts in opencast mines. Method includes installation of additional tamping from loose finely dispersed material in upper non-charged part of shot hole...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	DUGARTSYRENOV ARKADIJ VLADIMIROVICH, SEMENOV VASILIJ VASIL'EVICH, BELIN VLADIMIR ARNOL'DOVICH, GONCHAROV STEPAN ALEKSEEVICH, TRUSOV ALEKSANDR ALEKSANDROVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	AMMUNITION BLASTING HEATING LIGHTING MECHANICAL ENGINEERING WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	FIELD: blasting. ^ SUBSTANCE: invention is related to mining industry and construction, namely to methods for tamping of blast down holes in single blasts in opencast mines. Method includes installation of additional tamping from loose finely dispersed material in upper non-charged part of shot holes directly above explosive charge (EC) for the length from 6 to 12 diameters of shot hole, and then hydraulic stem bag is provided in the form of tight shell filled with water. Water of hydraulic stem bag is acidified till 4