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GeoResources

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english(31) deutsch(33) GeoResources Zeitschrift & Journal
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GeoResources Journal for Resources, Mining, Tunnelling, Geotechnics, Equipment and Energy

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GeoResources Journal 2-2018

21. July 2018
( 25589 Clicks / 13029 Downloads )

ISSN: Print 2364-8422 / Online 2364-8430

We are pleased to present to you the issue 2-2018 of the English Journal GeoResources.

Here is the table of contents. To download the GeoResources Journal click on individual headlines of the articles!

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Citation     Page: 5–6

bauma 2019 – innovative, global, digital and attractive

Next year it rolls around again: from April 8 to 14, 2019, the bauma will be held for the 32nd time in Munich, Germany. In the past, this leading world fair has set up record upon record. The organisers are confident that it will stay this way in 2019 so that the bauma will be able to consolidate its position as the world`s biggest trade fair of its kind.

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Citation     Page: 7–12

Slopes in loose Rock – Stabilisation and Erosion Protection in a single Operation

The creation and widening of infrastructures – such as roads, railway lines and buildings – frequently requires new cuttings or the steepening of existing slopes in loose rock. This article explains findings with planting vegetation and the stabilisation of such slopes and introduces novel combined systems of randomly entangled mesh made of synthetic material with mesh consisting of high-tensile steel wire, facilitating efficient installation.

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Citation     Page: 13–15

Risk Analysis for Argentina’s „Train to the Clouds“ efficiently developed using innovative Methods

At the end of January 2018 Geoconsult and Georesearch from Wals/Salzburg in Austria have presented in Buenos Aires a risk analysis for the “Tren a las Nubes” (Train to the Clouds). They developed the analysis in very short time at low expenditure using innovative modern methods. The risk analysis provides a well-founded basis for future investments in Argentina’s rail-infrastructure in the North-western region of Argentina.

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Citation     Page: 16–22

Tunnelling with Gripper TBMs – Pre-detensioning Factor for Dimensioning the Shotcrete Shell

The stress redistribution in rock acts on the load affecting temporary shotcrete supports in tunnels. This article explains numerical calculations, which were undertaken at the University of Applied Sciences, Darmstadt. They serve to analysis the rock’s stress deformation behaviour when tunnelling with a Gripper TBM and to establish pre-relieving factors for dimensioning the shotcrete shell.

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Citation     Page: 22

Innovative Plug-in Crosscut Elements

Precast elements called Plug-in Crosscut Element (PCE) have been developed to reduce the installation time inside the tunnel significantly.

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Citation     Page: 23–27

Follo Line in Norway – A new Dimension in Hard Rock Tunnelling

The Follo Line Project in Oslo is a revolution for tunnel-rich Norway. Previously, tunnels have mostly been built the traditional way with explosives. For the largest infrastructure project in the land of the fjords, tunnel boring machines are now being used. Since late 2016, four Double Shield TBMs from Herrenknecht have been simultaneously biting their way through the toughest hard rock for a new railway line: a first worldwide.

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Citation     Page: 28–30

Subsurface Transportation and New Energy Carrier Vehicles

The need for New Energy Carrier vehicles is on the very top of today’s political agendas. The reduction of CO emission goes hand in hand with new risks in subsurface transportation. The search for solutions to manage these risks is the topic of the research project SUVEREN, funded by the German Federal Ministry of Education and Research.

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Citation     Page: 31–40

Chromite Ore Mining in Kazakhstan – Experiences with fibre-reinforced Shotcrete

#Dorn, Eduard #Schmidt, Olaf

In the Donskoy Mine GOK in Chromtau, Kazakhstan, the TOO Schachtbau Kasachstan, a joint subsidiary of the German companies Schachtbau Nordhausen GmbH and Thyssen Schachtbau GmbH is driving a roadway in tricky geology with a small cross-section by means of NATM. Apart from the application of suitable engineering, the innovative shotcrete with polymer fibre reinforcement and consistent quality assurance in particular contributes towards ensuring that requirements are fulfilled.

#Chromite #metals #non-ferrous metal #Kazakhstan (KZ) #Schachtbau Nordhausen GmbH (SBN) #THYSSEN SCHACHTBAU GMBH #Mining #underground mining #Mining services #specialist mining contracting #drill and blast

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Citation     Page: 41–47

Photovoltaics in the Mining Sector – a Win-Win Situation for the Electrification of Sub-Saharan Africa?

Access to an affordable and reliable power supply is essential for the economic development of Sub-Saharan Africa (SSA). Deployment of photovoltaics represents a perfect solution, but the enormous potential still remains untapped. Mining, which is so energy-intensive and ambivalent in ecological terms, can supply remote regions as an anchor customer for electrification. Mine operators can anticipate a low-cost, reliable and sustainable energy supply as well as high social acceptance. At the same time, the rural population benefits from access to electricity and from the opportunity for strengthening socio-economic development.

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Citation     Page: 48–50

Mathematical Modelling of Water Hammer – Effect in shut-off and regulating Valves and Pipes with anti-corrosive Coating

Equipment for extracting and processing oil and gas as well as mineral processing is subject to great operational strain. Special coatings are intended to protect the components – especially valves and pipes – against wear and chemical loads. This article deals with the modelling of pressure surges, which largely contribute to damaging such coatings.

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