A high number of accidents caused by mineral fall is the reason for R and D work in view of new coalface and roadway support techniques. Three targets was aimed at: prevention of mineral fall, strate consolidation, and filling of cavities caused by mineral fall. The following methods were developed: - Snug fit of roadway support to strata by mortar filled hoses and cushions. - Use of air bags and plastic foam filled cushions, partially with lost filling mechanisms. - Consolidation of exposed fissured strata surfaces by quick setting immediately bearing mortars sprayed onto said surfaces. - Filling of mineral fall cavities with foam concrete. These developments were successful in several areas. (orig.)Hohe Unfallzahlen bei Stein- und Kohlenf...
The emergency condition of the mine surface facilities including a coal wash plant, a crusher, a bun...
The measures to protect against coal dust explosions in hard coal mining underground should be impro...
This report covers the first six months of a three-year research project and addresses a range of to...
The transition area face/roadway often represents a weak place in the field of preventive explosion ...
Hirherto, the stopping and backfilling of underground cavities and cave-ins was always an arduous an...
Schaummoertel ist ein Baustoff mit vielen Luftporen. Er soll z.B. im Steinkohlenbergbau Einsatz find...
Die spontane Verfluessigung gesaettigter granularer Massen ist ein ebenso dramatisches wie faszinier...
Aus der Darstellung der technischen und wirtschaftlichen Rahmendaten der Druckluftversorgung im deut...
The investigations aimed at better ergonomy in mine stabilisation, e.g. dust reduction in concrete s...
In this article, methods of reducing landslide phenomena and collapse of career of slopes, in the ex...
The final report describes the research work which was done by the Hirschberg colliery, Grossalmerod...
Die Ausarbeitung behandelt Bemessung und Anwendbarkeit eines als starres Ausbausystem einzustufenden...
Im Rahmen des dokumentierten Vorhaben sind vier Mineralstoffe, die in ungebundenen Tragschichten bei...
Yielding arch support being used in German mining almost exclusively, more and more comes up against...
Der Silikosebericht wurde bisher alle 2 Jahre veroeffentlicht. Mit dem vorliegenden 19. Band des Sil...
The emergency condition of the mine surface facilities including a coal wash plant, a crusher, a bun...
The measures to protect against coal dust explosions in hard coal mining underground should be impro...
This report covers the first six months of a three-year research project and addresses a range of to...
The transition area face/roadway often represents a weak place in the field of preventive explosion ...
Hirherto, the stopping and backfilling of underground cavities and cave-ins was always an arduous an...
Schaummoertel ist ein Baustoff mit vielen Luftporen. Er soll z.B. im Steinkohlenbergbau Einsatz find...
Die spontane Verfluessigung gesaettigter granularer Massen ist ein ebenso dramatisches wie faszinier...
Aus der Darstellung der technischen und wirtschaftlichen Rahmendaten der Druckluftversorgung im deut...
The investigations aimed at better ergonomy in mine stabilisation, e.g. dust reduction in concrete s...
In this article, methods of reducing landslide phenomena and collapse of career of slopes, in the ex...
The final report describes the research work which was done by the Hirschberg colliery, Grossalmerod...
Die Ausarbeitung behandelt Bemessung und Anwendbarkeit eines als starres Ausbausystem einzustufenden...
Im Rahmen des dokumentierten Vorhaben sind vier Mineralstoffe, die in ungebundenen Tragschichten bei...
Yielding arch support being used in German mining almost exclusively, more and more comes up against...
Der Silikosebericht wurde bisher alle 2 Jahre veroeffentlicht. Mit dem vorliegenden 19. Band des Sil...
The emergency condition of the mine surface facilities including a coal wash plant, a crusher, a bun...
The measures to protect against coal dust explosions in hard coal mining underground should be impro...
This report covers the first six months of a three-year research project and addresses a range of to...