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20.01.2022 (237 Clicks)

Acquisition: Rema Tip Top strengthens its Position in the Swiss Conveyor Market

Rema Tip Top AG acquires Polytechna AG. With the acquisition of the full-range supplier for conveyor technology based in Wetzikon, Switzerland, the Rema Tip Top Group strengthens its strategic position in Switzerland.

 

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19.01.2022 (271 Clicks)

South Harz Potash: Drilling commences at Ohmgebirge

South Harz Potash Limited (ASX:SHP) announce that drilling has now commenced on drill site OHM-02, the first of two confirmatory holes located within the flagship Ohmgebirge Mining Licence (Ohmgebirge) area of its 100%-owned South Harz Potash Project. This hole is scheduled to be completed in early February and will be assayed for chemical composition immediately once core is withdrawn.

 

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19.01.2022 (298 Clicks)

Construction and Mining Machinery Industry getting ready for bauma 2022

More than 10 months before bauma opens its doors in Munich from October 24–30, the world’s leading trade fair for construction machinery, building material machines, mining machines, construction vehicles and construction equipment is expecting a very high level of participation: 97 percent of the available space has already been confirmed by exhibiting companies.

 

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18.01.2022 (277 Clicks)

Fugro secures Cable Route Survey Contract for Denmark’s Energy Islands Development supporting the Transition to renewable Energy

Fugro has secured a new contract with Energinet to undertake cable route surveys for the North Sea Energy Island project.

 

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18.01.2022 (201 Clicks)

Cimic's CPB selected for South Australia's Augusta Highway Duplication

Cimic Group company CPB Contractors has been selected by the South Australian Government to deliver the next stage of the Augusta Highway Duplication - Port Wakefield to Lochiel.

 

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17.01.2022 (265 Clicks)

thyssenkrupp opens new Service Center in Peru

In December 2021 thyssenkrupp Industrial Solutions has opened a second service center in Peru, expanding its mining operations in the country and further strengthening its presence in South America. With the installation of this new unit, which is located in La Joya, in the province of Arequipa, the company now has six service centers in the continent.

 

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17.01.2022 (244 Clicks)

In the Name of Sustainability: BEUMER Group discovers ScrapeTec Innovations.

We at ScrapeTec in Kamp-Lintfort, were all delighted to have been invited by the BEUMER Group to present our products and solutions.

On December 1st at BEUMER HQ in Beckum, globally recognized conveyor system manufacturer was able to set up its own booth, and present Scrape Tec’s sustainable solutions for all aspects of the transfer point to everyone from engineering, sales and service at the BEUMER Group.

 

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13.01.2022 (344 Clicks)

Subway Line Crossing U2xU5: Bauer installs the deepest bored Piles in Vienna


Bauer Spezialtiefbau Ges.m.b.H., the Austrian subsidiary of Bauer Spezialtiefbau GmbH, was commissioned by the joint venture U2xU5, comprising the companies Swietelsky AG, Hochtief Infrastructure GmbH and HABAU Hoch- und Tiefbaugesellschaft m.b.H., to construct approximately 35,000 m of piles with diameters of 620 mm, 880 mm, 1,180 mm and drilling depths of up to 61 m for nine shafts and station structures in the middle of the city center of the Austrian capital (contract sections U2/22 & U5/2). For this purpose, up to five large rotary drilling rigs are being mobilized in the period from April 2021 to fall 2022.

Vienna’s public transport network currently encompasses approximately 1,150 km, five subway lines, 28 tram lines and 131 bus lines carry passengers to their destinations. As one of the most important infrastructure measures in Vienna, the subway network is being modernized with a new route layout for the U2 line as well as the construction of the new U5 subway line. The expansion of the U2xU5 line crossing will be carried out in two construction stages, whereby the first construction stage includes the extension of the U2 from the “Rathaus” station to “Matzleinsdorfer Platz” along with the U5 from “Karlsplatz” to “Frankhplatz”. The subsequent second stage of construction, which involves the construction of the U5 stations until “Hernals” and the U2 stations until “Wienerberg”, is currently in the planning phase.

The prevailing geology in the project area is characterized by deposits from the Vienna Basin (Miocene), which are overlaid with backfill, loess loam and water-bearing quaternary gravel. In contrast to the contract sections between the U2 stations “Matzleinsdorfer Platz” and “Neubaugasse”, where the line tunnels under construction are generally in Miocene (“Wiener Tegel” soil) layers, the tunnel axes in the area where Bauer Spezialtiefbau is carrying out work between “Rathaus” and “Schottentor” are situated in the water-bearing quaternary layers. Due to these connected free bodies of water in the quartz gravel, in combination with the confined groundwater of the sandy Miocene layers, bored piles embedded into Miocene layers generally have to be constructed under water load.

When it comes to the construction of the bored piles, the subsequent construction tasks and expansion work in most construction sections require compliance with higher tolerance requirements compared to the standard. Requirements include drilling precision with a maximum tilt deviation of 1% with respect to the drilling depth from the drilling surface, and the use of a drilling template that must be constructed precisely at the approach level down to +/- 3 cm.

With regard to the later use of the structures, in order to prevent any interference currents during subway operation, at least 10% of the maximum reinforcement cross section for all reinforcement cages must be electrically through-connected and integrated into the overall structure. The connections between the reinforcement bars, which are overlapped by up to five cage sections per pile, are carried out by directly welding the reinforcement bars using a 4 cm welding bead during the installation process on the construction site.

The highlight of the work is the construction of the deepest bored piles ever executed in Vienna on the “Schottentor” connecting structure – with diameters of 1,180 mm and a drilling depth of 61 m. Due to the new route layout, an expansion of the tunnel is required, whereby the piles take on different functions depending on their corresponding groups. For example, the contiguous pile wall on the side of the university will replace the diaphragm wall that was removed in this area and additionally divert the loads resulting from the extended support span into the subsoil. The high load concentrations resulting from the static side conditions and load redistributions make it necessary to construct a 2-row pile group in the “Universität Ost” area and to construction 55 m long piles with a drilling depth of 61 m in the area “Universität Mitte”, which will subsequently also form a part of the tunnel wall.

Based on the prevailing soil conditions in this partial section, the deepest piles in Vienna with a drilling length of 61 m will be partially cased up to depths of approximately 30 m, and beyond that under bentonite support. Given the ambitious predefined construction schedule, one 61 m pile per working day will ideally be constructed on this section under challenging, very limited spatial conditions in 2-shift work using a Bauer BG 45 drilling rig.

Thanks to the use of the digitalization software “b-project” from Bauer Spezialtiefbau GmbH, all pile construction data are collected and processed electronically. In addition, a process-oriented construction/production system is applied using the Bauer Construction Process, with the aim of guaranteeing the efficiency of all processes on an ongoing basis.

 By the end of the 2021 calendar year, approximately 75% of the commissioned services were concluded on schedule. During the current year, additional work will be continued in the area between “Universität” and “Votivpark” as well as on the shafts for “Landesgerichtstraße”, “Schwarzspanierstraße” and “Frankhplatz Süd”.

 Source: Bauer Group



Bauer, Austria, Geotechnics, Tunnelling, Shaft boring, drilling, HABAU, Hochtief, pile,

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13.01.2022 (231 Clicks)

Balfour Beatty and Alliance Partners achieve World first with international Accreditation for Collaboration

Balfour Beatty, in partnership with Transport for Wales, Siemens Mobility, Alun Griffiths Contractors Ltd and Amey Infrastructure Wales, announced that its Craidd Alliance has secured an international accreditation for collaboration.

 

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13.01.2022 (307 Clicks)

Cimic's UGL secures $296m in Renewables, Utilities Contracts

Cimic Group’s UGL has been awarded a number of design, engineering, procurement and construction contracts in the renewables and utilities sectors.

 

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GeoResources
Latest Articles

18.07.2022 

Focus on the Future, or ’suppose that’Focus on the Future, or ’suppose that’

’Suppose that’ our mind games about the future of what we do in the areas of geotechnical engineering, tunnelling, mining and raw materials positively influence the decisions we take tod...  

#Energy #Geotechnics #Tunnelling #Mining

18.07.2022 

Evaluation of the Use of field-portable LIBS Analysers for on-site chemical Analysis in the Mineral Resources SectorEvaluation of the Use of field-portable LIBS Analysers for on-site chemical Analysis in the Mineral Resources Sector

Portable laser induced breakdown spectroscopy (pLIBS) is an analytical method for determining the elemental composition of solid material surfaces. Field-portable devices are gaining increasing acce...  

#SciAps, Inc #OLYMPUS EUROPA SE & CO. KG #Measurement technology #exploration #exploratory measurements #field test equipment

18.07.2022 

Preserving the cultural and industrial Heritage of Mining Regions as a social Component of Post-mining EraPreserving the cultural and industrial Heritage of Mining Regions as a social Component of Post-mining Era

The cultural and social aspect of post-mining is considered as an important component of the transition process under way in coalfield regions. This paper describes international experience in prese...  

#Mining #abandoned mining #sealing work

Talpa Solutions GmbH
IVGeobaustoffe, Geokunststoffe, Wasserbau, Straßenbau, Verkehrswegebau, Straßenoberbau, Asphalteinlagen, Erd- und Grundarbeiten, Umwelttechnik, Deponiebau, Eisenbahnbau, Geotextil
F. Willich GmbH + Co. KG
EXPROTEC GmbH
EXPROTEC GmbH
DSI Underground GmbH
EXPROTEC GmbH
DSI Underground GmbH
FRIEDR. ISCHEBECK GMBH - Schalungs- und Verbausysteme - Formwork and trench shoring systems
Hermann Paus Maschinenfabrik GmbH
Specials
Increasing social Acceptance in the Management of Tailings Storage Facilities (TSF)

Increasing social Acceptance in the Management of Tailings Storage Facilities (TSF)

28. October 2021 (1929 Clicks)

 

#Mining #abandoned mining #Monitoring

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Books / Bücher
Buchreihe: Dokumentation der technischen Entwicklung bei der RAG

Buchreihe: Dokumentation der technischen Entwicklung bei der RAG

22. June 2022 (456 Clicks)

Die Aufgabe der Buchreihe „Dokumentation der technischen Entwicklung bei der RAG“ ist es, das in den vergangenen 50 Jahren im deutschen Steinkohlenbergbau erlangte Fachwissen zu sichern, zu verbreiten und künftigen technischen Entwicklungen Impulse zu geben. Über das Sammeln von Daten und Fakten hinaus stellt die auf insgesamt acht Bücher angelegte Reihe wichtiges Fach- und Lehrmaterial für Betrieb, Praxis und Studium dar.  

#RAG Aktiengesellschaft #Mining #underground mining #abandoned mining #Digitisation #ventilators

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Most clicked News

13.04.2022 (515 Clicks)

Skanska signs Contract for Work at Wastewater Resource Recovery Facility in NY, USA

Skanska has, as part of a joint venture with R.J. Industries, Inc., signed a ...  

#Skanska #Geotechnics #Supply tunnels #concrete #in-situ concrete #ventilation, dust extraction

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Most clicked News
Microtunnel Boring Machine breaks new Ground with mineral oil-free hydraulic Fluids from German Specialists

25.03.2022 (449 Clicks)

Microtunnel Boring Machine breaks new Ground with mineral oil-free hydraulic Fluids from German Specialists

The Saarbrücken civil engineering contractor SaarGrundbau has successful...  

#SaarGrundbau GmbH & Co. KG #Herrenknecht AG #Fluid Competence GmbH #Tunnelling #Supply tunnels #Hydraulics

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Most clicked News

09.06.2022 (426 Clicks)

Femern A S and SICE-COBRA sign multi-billion Contract

On Monday 30 May, Femern A/S and SICE-COBRA have signed the contract for the ...  

#Sociedad Ibérica de Construcciones Eléctricas (SICE) #Cobra Instalaciones y Servicios (Grupo Cobra) #Femern A/S #Tunnelling #Traffic tunnels

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Most clicked News

23.05.2022 (419 Clicks)

Metso Outotec wins Order for large Iron Ore Pellet Plant in Oman

Metso Outotec has signed an agreement for the delivery of engineering and key...  

#Metso Outotec #Vulcan Engineering Co. #processing

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