Tunnelling and Underground news articles 
Elliptical concrete pipes solve surface water flooding problems
With localised surface water flooding continuing to be a major problem, elliptical concrete pipes are now a far more effective and economic alternative to drainage systems such as box culverts – according to Stanton Bonna. “The elliptical system offers significant advantages over others, particularly box culverts, because it provides a far superior hydraulic performance and a fully watertight elastomeric captive gasket joint”, explains Richard... [more]
Cellcore from Cordek addresses the issues of ground uplift caused by deep excavation on the New Tyne Tunnel Crossing
When completed in 2011, the New Tyne Tunnel Crossing will comprise a two lane immersed tube tunnel stretching between East Howdon on the North bank and Jarrow on the South bank of the River Tyne. The four giant concrete tunnel segments are being created up river from the construction site and will be floated down the River Tyne before being immersed to form the new tunnel on the riverbed. The main contractor for the project is French company Bouy... [more]
Dunne Building and Civil Engineering use ceiling mounted design from RMD Kwikform to speed up the construction process of the new Tyne Tunnel
Ceiling mounted runway beam design helps Dunne Building & Civil Engineering slide a huge sixteen tonne RMD Kwikform wall formwork system safely into place, beneath a 1.2m thick roof slab, minimising work at height inside the tight confines of the new Tyne Tunnel. Tasked with forming the all important safety escape route on the North structure to the new £260m Tyne Tunnel project, funded jointly by concessionaire TT2 Limited and Project Promot... [more]
DavyMarkham acquired by India's Hindustan Dorr Oliver
DavyMarkham has been acquired by India’s leading engineering procurement and construction company, Hindustan Dorr Oliver (HDO) Limited, a subsidiary of IVRCL Infrastructures & Projects Ltd, which is involved in engineered solutions, technologies and EPC installations in liquid-solid separation applications. The acquisition provides HDO with an entry into the Heavy Engineering sector. The firm’s Managing Director, Kevin Parkin, who was named B... [more]
DavyMarkham built cutterheads for tunnel boring machines used on railroad tunnel project in China
Tunnelling plays an increasingly important role in the development of transportation links and renewable energy schemes and China reportedly ranks first in the world, both for the number of tunnels and pace of construction. In bypassing areas of natural beauty, it often has significant ecological benefits; in the Qinling Mountains, when a national highway was rerouted by tunnel, it enabled the plantation of 500 acres of bamboo and the bridging of... [more]
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