22.03.2022 (411 Clicks)
Next STUVA Conference takes Place earlier
The next STUVA conference originally planned for 06 to 08 December 2023 at the International Congress Center (ICM) in Munich will take place earlier than previously planned. The new date is now 08 to 10 November 2023.
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22.03.2022 (356 Clicks)
Further Boost to the Northeast Economy as A19 Upgrade open
A £51.6 million upgrade of the A19 delivered to budget and ahead of programme by Costain has been officially opened to traffic.
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21.03.2022 (362 Clicks)
70,000 tonnes of Warmth and Light for Ukraine
An Australian resources company has stepped up to supply a cargo of essential humanitarian aid to war-torn Ukraine, and it’s not what you’d think.
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21.03.2022 (437 Clicks)
Fugro supports NIOT’s coastal Community Development Plan with a large-scale bathymetry Survey in India
India’s National Institute of Ocean Technology (NIOT) has commissioned Fugro to carry out a bathymetric survey along the Andhra Pradesh coast in south-eastern India.
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18.03.2022 (417 Clicks)
HS2 Tunnelling Machines reach Chalfont St Peter Ventilation Shaft
Two enormous Tunnel Boring Machines (TBMs) excavating HS2’s longest tunnels have completed the first stage of their drive – from the Chiltern tunnel’s south portal to the first ventilation shaft at Chalfont St Peter
HS2 this week confirmed that the two enormous 2,000 tonne tunnelling machines digging the high speed rail project’s tunnels under the Chilterns have completed the first stage, up to the ventilation shaft at Chalfont St Peter.
This major achievement means that a combined total of over 3.6 miles has now been dug by the two machines – named Florence and Cecilia – since they launched from the southern end of the tunnels last summer.
The 78m deep shaft at Chalfont St Peter is the first of five that will provide ventilation and emergency access to the ten-mile-long twin tunnels – which are the longest on the project. Once complete, the shaft will be covered by a headhouse designed to resemble local farm buildings.
Designed specifically for the geology of the Chilterns, each TBM is a 170m long self-contained underground factory, digging the tunnel, lining it with concrete wall segments and grouting them into place as it moves forward.
The TBMs named ‘Florence’ and ‘Cecilia’ by local school children launched in May and June last year and are expected to break out at the north portal in around two and a half years.
Welcoming the progress, HS2 Ltd Project Client David Emms said: “The Chiltern tunnel will take HS2 underneath the hills and safeguard the woodlands and wildlife habits above ground as well as significantly reducing disruption to communities during construction and operation of the new railway. It’s great to see how much progress has been made by Florence and Cecilia – and the teams excavating the five ventilation shafts – and I’d like to thank everyone involved in getting us this far.”
These first two TBMs on the HS2 project are operated by, Align – a joint venture formed of Bouygues Travaux Publics, Sir Robert McAlpine, and VolkerFitzpatrick. A crew of 17 people on board each machine keep them running, working in shifts and supported by over 100 people on the surface, managing the logistics and maintaining the smooth progress of the tunnelling operation.
Align Project Director, Daniel Altier commented: 'Florence and Cecilia reaching our first shaft at Chalfont St Peter is a great achievement for not only the tunnelling team but also construction team involved in excavating and preparing the shaft. In particular I would like to pay credit to KVJV and Keltbray our supply chain partners, who have been working tirelessly over the last few months to ensure the shaft is ready for the arrival of Florence and Cecilia.”
Each of the separate northbound and southbound tunnels will require 56,000 precision engineered, fibre-reinforced concrete wall segments – which are all being made in purpose build factories on site at the south portal, located just inside the M25. During their first 3.6 miles, Florence and Cecilia have combined installed more than 20,000 separate segments, each weighing around 8.5 tonnes.
Approximately 2.7 million cubic metres of material will be excavated during the construction of the tunnels and used for landscaping on the south portal site. Once construction is complete, this will help create around 90 hectares of wildlife-rich chalk grassland habitats. Chalk grassland used to be widespread across the hills of south east England and are considered habitat of international conservation significance with just 700ha left across the Chilterns.
In total there will be ten TBMs on the HS2 project - working to create 64 miles of tunnel between London and the West Midlands including major tunnels on the approach to London and Birmingham. Three machines have been launched so far.
More than 20,000 jobs and over 650 apprenticeships are already being supported by HS2, which is set to transform transport links between Britain’s major cities, free up space on the rail network for more freight and local services and support the UK’s transition to net zero carbon emissions.
Source: HS2
HS2, United Kingdom, milestone, TBM, drive, shaft, ventilation, Chiltern, Florence, Cecilia, David Emms, Travaux Publics, Sir Robert McAlpine, VolkerFitzpatrick, Daniel Eltier, segment, excavation, jobs







18.03.2022 (365 Clicks)
Balfour Beatty appoints new Non-executive Director
Balfour Beatty, the international infrastructure group, announces that Louise Hardy has been appointed as a Non-executive Director with effect from 1 April 2022.
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18.03.2022 (377 Clicks)
Cossi Costruzioni (Webuild Group) has won three contracts worth a combined
Group expands in road safety and rehabilitation sector in Italy
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17.03.2022 (284 Clicks)
Anglo American completes first Sea Trial using Bend of Biofuel and very low Sulphur Fuel Oil to reduce Emissions from Ocean Freight
Anglo American has successfully completed a sea trial using biofuel blended with very low sulphur fuel oil (VLSFO), reducing carbon emissions by approximately 10%. The trial further demonstrates the potential for sustainable biofuel to be used as a ‘drop-in’ fuel, improving its viability to help reduce emissions in the shipping sector. The fuel was blended and bunkered in Singapore, marking an important step in establishing a local supply chain and a cost-efficient, low-carbon biofuel offer for the region.
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17.03.2022 (320 Clicks)
Qld a critical Player in new Economy Minerals Investment
The Queensland Resources Council (QRC) has welcomed the Australian Government’s commitment to support new investment in critical minerals projects, which is a key growth area for Queensland’s resources sector.
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15.03.2022 (310 Clicks)
Accountability on Coal: Managing the Impacts of a Sector in Transition
GRI launches new standard to address sustainability challenges facing coal companies
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23.12.2022
Corrosion Protection of Micropiles
Micropiles often provide a favourable solution for deep foundation problems especially when significant constraints such as confined construction sites or vibration limitations have been identified....
#FRIEDR. ISCHEBECK GMBH #Geotechnics #grouting #grouting works
20.10.2022
‘Focus on Technology’ or ‘Wonders of modern Technology’
The bauma trade fair will soon open its doors, about six months late – at a time of major changes and challenges. To coincide with the 33rd World’s Leading Trade Fair for Construction Machinery, Building Material Machines, Mining Machines, Construction Vehicles and Construction Equipment, the focus of this issue is on technology – an interesting special topic for all of us in the areas in which we work, not just for trade-fair visitors and exhibitors....
#Energy #Geotechnics #Tunnelling #Mining
18.07.2022
Climate Protection and Sustainability – a personal Issue and a Challenge for the Geotechnics Branch
Climate protection and sustainability affect us all – both on a personal level and at our place of work, and the DGGT (German Geotechnical Society) is no exception to this. So let us do our bi...
#Geotechnics
06.02.2023 -
Indaba 2023
07.02.2023 - 09.02.2023
UCT 2023 - 28th Annual Underground Construction Technology
20.02.2023 - 23.02.2023
GEOAFRICA 2023
26.02.2023 - 01.03.2023
MINEXCHANGE 2023

World’s longest Railway Tunnel Project – supported by innovative Conveyor Digitalisation and reliable Engineering
17. October 2022 (606 Clicks)
The consortium BTC Brennero Tunnel Construction and the Hosch Group jointly delivered on a world-class tunnelling project by combining excellent engineering with the innovative remote monitoring system Hoschiris Discover.
#Brennero Tunnel Construction (BTC) #HOSCH-Foerdertechnik Recklinghausen GmbH #Tunnelling #Traffic tunnels #Conveyor technology #Digitalisation
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RAG-Technikchronik - Buch 1: Technikentwicklung und Forschung der RAG
27. December 2019 (2868 Clicks)
Das Buch 1 "Technikentwicklung und Forschung der RAG" behandelt zusammenfassend die Ergebnisse der Bücher 2 bis 6 und ergänzt um das Thema Lagerstätte aus dem Buch 7. Das Thema „Forschung und Entwicklung“ wird genauso behandelt, wie der Streckenausbau, die Entwicklung der Technikbereiche, die Bergwerksautomatisierung und die Unternehmensdigitalisierung.
#RAG Aktiengesellschaft #Mining #Digitalisation
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12.01.2023 (327 Clicks)
Europe’s largest Deposit of Rare Earth Metals is located in the Kiruna Area
LKAB has identified significant deposits of rare earth elements in the Kiruna...
#LKAB #Mining #Energy #underground mining
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24.01.2023 (219 Clicks)
K + S appointed Dr. Carin-Martina Tröltzsch to the Board of Executive Directors
The Supervisory Board of K+S Aktiengesellschaft has appointed Dr. Carin-Marti...
#K+S AG #Mining #underground mining
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07.01.2023 (208 Clicks)
Masan High-Tech Materials integrates global R&D activities under leadership of H.C. Starck Tungsten Powders
H.C. Starck Tungsten Powders is bringing together the research and developmen...
#H.C. Starck Tungsten GmbH #Mining
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07.01.2023 (184 Clicks)
Implenia wins large and complex tunnelling project in Norway – E03 Boknafjord tunnel
- Joint Venture of Implenia and Stangeland Maskin selected to plan and ...
#Implenia Construction GmbH #Tunnelling #Traffic tunnels
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