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Mill Creek Drainage Tunnel TBM unveiled
22 January, 2020
Texas – The City of Dallas unveiled the 11.6m-diameter hard rock machine that will bore the 8km-long Mill Creek Drainage Relief Tunnel. The machine, manufactured by Robbins, will change diameter at one point along the bore and continue at a diameter of 9.9m.

DMRC HCC award
22 January, 2020
Delhi Metro Line 8 extension works contract awarded

Sydney Metro finishes city centre tunnels
22 January, 2020
Australia – Four out of five drives for the Sydney Metro’s ‘City and Southwest’ phase have been completed. The most recent breakthrough was into Barangaroo Station. These drives represent the entirety of the city centre tunnels, with only a second tube crossing the harbour still to be completed. As of 21 January, some 97% of tunnel excavation had been completed.

Alan Thomas Winter (1952-2019)
20 January, 2020
It is almost a year since Alan died unexpectedly in January 2019. Those who worked with Alan respected his immense knowledge and vast practical experience that he brought to bear for the benefit of numerous projects and clients. In addition, Alan was also well known and admired for his sense of humour and quick ability to add wit to alleviate the stress of crisis.

Long-term effectiveness of PVC Geomembranes
20 January, 2020
Tests detailed in this paper verified the effectiveness of geomembranes up to 100 years. The authors are Andrea Luciani, Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino; Daniele Peila, same; Enrico Dal Negro, Underground Technology Team Director, Mapei; Maurizio Leotta, Synthetic Waterproofing Division Director, Mapei; Enrico Pavese, Underground Technology Team Waterproofing Specialist, MAPEI; and Sara Cadamuro, Synthetic Waterproofing Membranes R&D, Mapei

Abu Dhabi Gyroscope
20 January, 2020
A case study from Abu Dhabi of the NAV24 gyroscope system

The Valley of Toluca
20 January, 2020
A new rail line will connect the Valley of Toluca Metropolitan Area with the west of Mexico City. TBM tunnelling had to deal with a heterogeneous massif, adverse terrain, and an alignment characterised by the presence of faults and zones with elevated hydraulic loads of up to 7 bar over the tunnel keystone. The authors of this paper are geotechnical tunnels head José Ramos Gómez, tunnel section director Rubén Díez de la Fuente, and TBM expert advisor Ignasi Castellvi Moyes, all from Sener

City & Southwest
20 January, 2020
Alex Conacher visits the Sydney Metro’s second phase to speak with Terry Sleiman, project director for the contractor John Holland CPB Ghella, Hugh Lawson, project director for the client, and Kate Cole, occupational health and hygiene manager for Transport for NSW

Better than ever
20 January, 2020
Planners are capitalising on modern improvements to tunnelling technology in a boost to the Australian industry. Alex Conacher reports

Left foot forward
20 January, 2020
After a tumultuous and tiring few years for the British electorate, a towering majority for the Conservative Party makes it very likely that Britain will leave the European Union in short order.

Single Delta tunnel to start environmental review
17 January, 2020
California-- Jeffrey Kightlinger, general manager of the Metropolitan Water District of Southern California, announced January 15 the California Department of Water Resources issued a Notice of Preparation (NOP) initiating the environmental review process for a single-tunnel conveyance solution in the Sacramento-San Joaquin Delta.

GHH adds to equipment range
16 January, 2020
Germany – Mining and tunnelling machinery manufacturer GHH announced a major increase in its range. Some 18 machine types were announced in November 2019, due to an alliance with Titan.

Barbco announces new patent
14 January, 2020
Ohio – Barbco announced January 12 the co-owner and CEO Anthony Barbera was granted U.S. Patent #10465460 for the Barbco FlexBor tooling and technology on November 5, 2019.

Tunnelling starts under Toronto highways
08 January, 2020
Ontario – Metrolinx announced tunnel work has begun under highways 401 and 409 for its new train tunnel. Considered one of the busiest sections of highway in North America, according to Metrolinx, which released a video on December 16 showcasing the SEM construction below 21 live lanes of traffic.

Jennmar rebrands to Xcal Tools
08 January, 2020
Tony Calandra, group president of Frank Calandra Inc. and Calandra Group, LLC., announced January 6 Jennmar McSweeney's, Jennmar Sanshell, Cuda Tools Inc., and Jennmar Construction Tools will be re-branded and changing their names to Xcal Tools.

FIDIC endorses infrastructure transparency initiative
06 January, 2020
International – The International Federation of Consulting Engineers (FIDIC) stated that it will endorse the Infrastructure Transparency Initiative (CoST), a global initiative to ‘improve transparency and accountability in public infrastructure’.

Monark buys Epiroc’s handheld drilling business
06 January, 2020
Norway – A rock drilling tools manufacturer has bought Eprioc’s handheld drilling business and factory. The facility, based in Ockelbo, about 200km north of Stockholm, was part of Epiroc’s Rock Drilling Tools division. The approximately 40 employees who work at the facility will be offered to transfer to the new owner.

AMT-II TBM ordered
06 January, 2020
India – Patel Engineering has ordered a Terratec TBM for the AMT-II water transfer project in Maharashtra, western India. The project calls for a 3.2m hard rock gripper TBM to complete the two drives that form the 5.5km transfer tunnel.

Credit check
24 December, 2019
Greg Norris of B2W Software explains how software can help track employee licenses, certifications and training

TAC Awards 2019
24 December, 2019
From rising starts to nationally acclaimed projects, the Tunnelling Association of Canada presents its annual awards each fall to recognize the deserving individuals and engineering accomplishments in the Canadian tunnelling sector. The 2019 awards were presented in Winnipeg on October 21.