It would be economically favourable if roller drills could be used in roadheading. Roller drills for solid rock could be installed in selective cutters in order to permit economically efficient roadheading operations also in regions of higher rock strength and abrasivity. For this reason, efficient methods of rock crushing without explosives were to be developed and tested. The high cutting forces on roller drills were to be reduced by a new cutting technique, i.e. so-called back-cutting. (orig./HS)Von grosser wirtschaftlicher Bedeutung waere die Erweiterung des Einsatzbereiches von Rollenbohrwerkzeugen auf neuartige, den Anforderungen des Streckenvortriebs angepasste Systeme. Diese Rollenbohrwerkzeuge, ausgelegt auf das Loesen auch festere...
In all areas of mining and also in deep workings, accurate and securely targeted bores are of the gr...
Basic testing of and theoretical research on various activation systems yielded variable results wit...
EP 1870205 A1 UPAB: 20080310 NOVELTY - The device has a rotary spinner, which exhibits throw shovels...
Safety and working conditions during rockbolting were to be improved. The following aspects were inv...
The investigations aimed at better ergonomy in mine stabilisation, e.g. dust reduction in concrete s...
In the potash and rock salt mines operated by K+S Kali GmbH the extraction of the mineral is mainly ...
The terminated research programme was based on the following aims: Mechanization of roof support set...
The studies conducted help to deepen the knowledge on rock mechanics and mine development as well as...
The aim of the planned development work was a smooth adaptation of the cutting speed to various cond...
DE 102006046263 B3 UPAB: 20080417 NOVELTY - Method for increasing the fraction toughness of the edge...
The research project 'drilling shafts as cutting element' has as its subject the question of the fea...
The process of cutting rocks with a boom-type roadheader results in extreme dynamic loads and vibrat...
Aus der Darstellung der technischen und wirtschaftlichen Rahmendaten der Druckluftversorgung im deut...
Abstract Tunnel boring machines are important tools in underground infrastructure projects. Although...
The project forms part of the research programme ''Cost-effective mining structures''. The objective...
In all areas of mining and also in deep workings, accurate and securely targeted bores are of the gr...
Basic testing of and theoretical research on various activation systems yielded variable results wit...
EP 1870205 A1 UPAB: 20080310 NOVELTY - The device has a rotary spinner, which exhibits throw shovels...
Safety and working conditions during rockbolting were to be improved. The following aspects were inv...
The investigations aimed at better ergonomy in mine stabilisation, e.g. dust reduction in concrete s...
In the potash and rock salt mines operated by K+S Kali GmbH the extraction of the mineral is mainly ...
The terminated research programme was based on the following aims: Mechanization of roof support set...
The studies conducted help to deepen the knowledge on rock mechanics and mine development as well as...
The aim of the planned development work was a smooth adaptation of the cutting speed to various cond...
DE 102006046263 B3 UPAB: 20080417 NOVELTY - Method for increasing the fraction toughness of the edge...
The research project 'drilling shafts as cutting element' has as its subject the question of the fea...
The process of cutting rocks with a boom-type roadheader results in extreme dynamic loads and vibrat...
Aus der Darstellung der technischen und wirtschaftlichen Rahmendaten der Druckluftversorgung im deut...
Abstract Tunnel boring machines are important tools in underground infrastructure projects. Although...
The project forms part of the research programme ''Cost-effective mining structures''. The objective...
In all areas of mining and also in deep workings, accurate and securely targeted bores are of the gr...
Basic testing of and theoretical research on various activation systems yielded variable results wit...
EP 1870205 A1 UPAB: 20080310 NOVELTY - The device has a rotary spinner, which exhibits throw shovels...