Lectures 2018

The ‘Freiberg Colloquium’ is a series of lectures of the Saxon State Office for Environment, Agriculture and Geology, of the Saxon Mining Authority, of the Geokompetenzzentrum Freiberg. e.V., of the Saxon State Archives/Mining Archives, of the Technical University of Freiberg and of the terra mineralia.

Thursday, 26 April 2018, 7.30 pm

The Electric Impulse Process: Development Journey of a new Drilling System

Franziska Lehmann (Engineering, TU BAF), Erik Anders (Engineering, TU Dresden)
163rd Freiberg Colloquium, venue: Lecture hall terra mineralia, Freudenstein Castle

If you took a walk through the TU Bergakademie Freiberg campus between mid-August and mid-October of last year, you might have come across a roughly 12m-high drilling tower near Gustav-Zeuner-Straße. What was that all about? A Federal Ministry of Economic Affairs and Energy (BMWi)-sponsored partnership between the Institute of Drilling Engineering and Fluid Mining (TU Bergakademie Freiberg), the Institute of Fluid Power (TU Dresden), the Institute of High Voltage Engineering (TU Dresden) and partners from the industry is developing a new drilling process for the pulverisation of hard rock. The new technique is based on the so-called electro-impulse process (EIP). Within one second, around 25 bolts at a voltage of 500,000 volts are generated. They “blast” the rock at the base of the borehole. Since this process, unlike conventional boring methods, is non-contact and works without any moving parts at the head of the drill, there is no need for the constant, expensive removal and reinsertion of the drill pipe – which is usually several kilometres long – to change blunt drill bits. Just the lower cost of drilling enabled by this process –a fraction of what it was before – means that this process offers enormous potential in the field of deep geothermal energy. Until now, high costs hindered it from making a widespread breakthrough into the energy market. With the new drilling process, costs for deep geothermal drilling in hard rock – as is found in the Erzgebirge in Saxony for example – are expected to drop to the point where utilising geothermal energy to produce environment-friendly heating and electricity will become economical. This could signify a major step forward in the transition towards sustainable energy.

The test drilling in autumn last year was the climax of 10 years of research work. Find out more about the development of this innovative drilling process and trace the history of an idea from a laboratory-based feasibility study, through the development of a new drill head, to the in-situ trial of the electro impulse drilling system at the TU Bergakademie Freiberg campus test site.

Thursday, 31 May 2018, 7.30 pm

‘… for there was nothing to see but suffering …’ –
Shaft Collapse at the Neue Fundgrube in Lugau, 1867:
Causes and Effects of one of Germany’s Worst Mining Disasters

Heino Neuber, Oelsnitz Mining Museum
164th Freiberg Colloquium, venue: Lecture hall terra mineralia, Freudenstein Castle

Thursday, 21 June 2018, 7.30 pm

‘Cornwall – a European Mining Region Yesterday, Today and Tomorrow’

Benedikt Steiner MSc, Programme Director and Lecturer in Exploration & Mining Geology,
Camborne School of Mines,
A lecture as part of the MIREU project – Mining and Metallurgy Regions of EU
165th Freiberg Colloquium, venue: Lecture hall terra mineralia, Freudenstein Castle

Thursday, 20 September 2018, 7.30 pm

Innovation in Mining

Dr. Marco Roscher, SAXORE Bergbau GmbH
A lecture as part of the MIREU project – Mining and Metallurgy Regions of EU
166th Freiberg Colloquium, venue: Senate hall of the TU Bergakademie Freiberg, Akademiestraße 6.

Thursday, 18 October 2018, 7.30 pm

10 years of terra mineralia – How it all began
On the genesis of the terra mineralia exhibition

Andreas Massanek (graduate mineralogist), Curator at terra mineralia,
Managing Director, TU Bergakademie Freiberg Geoscientific Collections
167th Freiberg Colloquium, venue: Senate hall of the TU Bergakademie Freiberg, Akademiestraße 6.

Thursday, 22 November 2018, 7.30 pm

The Zinnwald Lithium Project

Prof. Armin Müller, Managing Director, Deutsche Lithium GmbH
168th Freiberg Colloquium, venue: Senate hall of the TU Bergakademie Freiberg, Akademiestraße 6.

Thursday, 20 December 2018, 7.30 pm

Silver from the New World – from the Joachimsthaler to the Potosí

Dr Wolfgang Reimer, Geokompetenzzentrum Freiberg e.V.
169th Freiberg Colloquium, venue: Senate hall of the TU Bergakademie Freiberg, Akademiestraße 6.