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Chelsea to Battersea tunnel surface settlements
16 August, 2019
Monitoring of ground surface movements induced by the construction of the Chelsea to Battersea Pipeline Tunnel project is presented as part of this case study. The surface settlements induced by the shaft construction have been analysed and compared with current methodologies and information from recent projects. Movements from excavation and construction of the tunnel are also analysed, and back-analysis of volume losses is presented. The authors are Veriuska Ortiz Lovera, geotechnical engineer, Mott MacDonald; Andrew Hejdner, project manager, Cadent Gas; James McCaffrey, construction manager, Skanska UK Construction; and Mohammad Arasteh, senior tunnel engineer, Mott MacDonald

Enrique Fernández González
16 August, 2019
Alejandro Sanz of gGravity Engineering remembers Enrique Fernández González (1960-2019)

Get the muck out
14 August, 2019
Following reader requests, Amy Duncan of Dos Santos International has written this article on the development of the sandwich belt high angle conveyor concept, which has recently been employed on the Grand Paris Express project

Marr’s improved lifting plan for Sydney Metro
14 August, 2019
An existing lifting plan for the Sydney Metro project was scrapped in favour of one more appropriate for cramped site conditions. Paola De Pascali reports

Underground heat recovery
14 August, 2019
Matt Houchin, assistant engineer – tunnel ventilation and operations, WSP, presents this paper on the potential for heat recovery from tunnels

The new network
14 August, 2019
Alex Conacher travelled to Changsha, China, to meet with a number of Chinese manufacturers as, spurred on by an enormous China-led investment programme, they take a more international approach to their businesses

WTC Naples
14 August, 2019
The World Tunnel Congress returned to Italy in May this year. Following a successful show, Paola De Pascali presents this report

Take initiative
08 July, 2019
Lindsey Gauthier, research assistant, and Lana Gutwin, research coordinator, both of CETT, outline the work and research of the consortium, which is part of the University of Alberta

Waterview tunnel
08 July, 2019
Tommy Parker, NZ Transport Agency and Iain Simmons, Well-Connected Alliance gave a presentation on the Waterview Connections project. Paul Perry of Hewson Consulting Engineers reports

A digital twin
08 July, 2019
Digitalisation offers a variety of new possibilities. One of them is the modelling of infrastructure with Building Information Modelling (BIM). Digital technology is a core element for the simplification of processes and for automation. This also applies to already-built infrastructure, as the RetroBIM project launched by Amberg demonstrates. Pedro Luis Iserte Llacer, head of BIM at Amberg and Roger Schaad, marketing specialist at Amberg discuss the project

Spanning the far east
08 July, 2019
Paola De Pascali interviewed several key figures at Normet, which is enjoying bumper growth thanks to the health of underground construction

Horizontal Directional Drilling (HDD)
07 June, 2019
Includes: Q&A with Ali Asadi (M.Eng Candidate from Concordia University’s Department of Building, Civil and Environmental Engineering)

Conditions of contract
06 June, 2019
Alex Conacher reports on the Emerald Book, published at WTC 2019

A step forward for fresh air
06 June, 2019
Fathi Tarada, managing director of Mosen Ltd, reviews a new emissions guidance report issued by the World Road Association

Restoration
06 June, 2019
Matthew Hubel, Schemmer Associates, discusses restoration for the City of Omaha’s Missouri River Water Resource Recovery Facility

In the clear
06 June, 2019
Tunnelling below St. Louis will improve wastewater capacity and alleviate overflows, Desiree Willis, technical writer for Robbins, reports

Navigating live tunnel connections
06 June, 2019
Connecting the Des Plaines Tunnel System to the McCook Reservoir is one of the latest – and more challenging – components of TARP. Report by Cary Hirner and Faruk Oksuz of Black & Veatch, and Carmen Scalise of the Metropolitan Water Reclamation District of Greater Chicago

Subsurface storage system
06 June, 2019
Underground construction in Montreal is helping the city meet increasing transit system demand. Jean Habimana, Hatch, discusses the Garage Cote Vertu project

Salt of the earth
04 June, 2019
A regular topic on the UK news is the management of roads in wintertime. This usually relates to the delivery of ‘grit’ to local authorities. But where does this ‘grit’ come from and how is it managed such that there is enough to cope with demand? At the BTS/Minsouth meeting in February, the VP of operations for Compass Minerals, Gordon Dunn, delivered a talk on the salt extraction operations at Winsford Mine in Cheshire, report by Andrew Hindmarch

Under the Northern lights
04 June, 2019
Paola De Pascali spoke with David Fossati, Nordnes project manager to explore the logistical challenges of the K01 E6 Indre Nordnes-Skardalen road project