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  Date 2012
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Which ever way you slice it
27 December, 2012
It is easy to get ‘tunnel vision’ in examining the possible methods of excavation. If engineers were happy with that then disc and roller cutters for hard-rock TBMs would never have been developed as an alternative to drill and blast. Maurice Jones asks what has been tried before and what might still be valid

Opportunity rocks
27 December, 2012
Hong Kong develops into the main base of operations for the Asia Pacific, while Singapore strives to become to hottest destination for professionals, and both scrap for skilled labour. Alex Conacher speaks to three expats

Look back to move forward
27 December, 2012
Last month the world’s oldest working digital computer was rebooted after three years of painstaking rebuilding. The machine was found in a storeroom where it had been left abandoned for 15 years. In its prime in the 1950s the computer had been used by the UK’s atomic energy research programme. The 2.5t machine will now take pride of place at Bletchley Park, the site of the English code breaking efforts during World War II.

Robust ground improvement
27 December, 2012
Innovations on Singapore’s Marina Coastal Expressway have enabled faster, more cost-effective construction while meeting the state’s famously tough safety requirements. Andrew Mylius, technical writer for Mott MacDonald, released this report

On the cutting edge
27 December, 2012
The process of mechanical excavation through dry ground, whether hard or soft, is pretty well understood. For ‘mixed’ ground, of whatever form, it is a different matter, especially if it is deep under groundwater. Maurice Jones reports that there is a consequent rush of TBM cutter development activities to gain the best competitive, and cutting, edge

Fifty shades of brown
27 December, 2012
Slurry handling on Singapore’s Downtown Line Two contract 916 has been cited as an example of ‘slurry done right’. This paper by Gwyn Jones, deputy construction manager and tunnel manager for McConnell Dowell discusses the principles of managing slurry during tunnelling operation with particular reference to tunnelling in mixed face

Tunnels Photo Competition 2013
13 December, 2012
Once again we are giving you the chance to win the latest in digital camera technology and all you have to do is take a classy snap of your tunnel.

Tunnels Awards 2013 launched!
13 December, 2012
Entries are now being accepted for the Tunnels Awards 2013. The biennial awards were re-launched in 2011 to champion the industry’s best and most impressive recoveries.

First TBM for Delhi Metro phase three gets delivered
12 December, 2012
The first of six TBMs for Delhi Metro Phase III was delivered at the end of November, Terratec announced recently. The official ceremony was held in the presence the client - a JV between Metrostroy O.S. of Russia and ERA Infra of India - after seven months from receipt of order.

Kishanganga project makes record progress
12 December, 2012
The Kishanganga project in the Himalayas has achieved a new excavation record in India last month. Seli recently announced that it excavated 815m with its TBM DSU designed for the challenging geological and environmental conditions of the work site in November.

JV gets USD 950M for Istanbul tunnel
12 December, 2012
A joint venture group led by South Korean contractors got a USD 960M loan to help finance a subsea road tunnel in Istanbul. The 18-year deal for the Istanbul Strait Road Crossing Project, also known as The Eurasia Tunnel Project, was signed earlier today.

Monitoring contract for Kuala Lumpur tunnel awarded
12 December, 2012
Instrumentation and monitoring systems for the underground sections of the Klang Valley MRT has been awarded to Maxwell Geosystems.

Pakistan and South Korea sign tunnel agreements
12 December, 2012
Pakistan and South Korea have signed two agreements for the Malakand Tunnel Construction Project and for development of water resources infrastructure including dams, announced the Government of Pakistan and a statement from Seoul.

Kenyan president orders construction of tunnel
12 December, 2012
President Kibaki urged government agencies to seek appropriate design for either a bridge or tunnel across the Likoni channel, in order to address what has become a hindrance to trade between the north and south coast, a national newspaper reported late last week.

City of Ottawa moves forward on Confederation Line plans
11 December, 2012
The City of Ottawa has selected its consortium choice to build the city’s CAD 2.1bn (USD 2.13bn) light-rail transit system, local new reports stated late last week. Rideau Transit Group won the contract for the 12.5km east-west Confederation Line, which includes a 2.5km tunnel to be completed by 2017.

Loan secured for London's Northern Line extension
11 December, 2012
The UK Government has agreed a loan of up to GBP 1bn (USD 1.6bn) that will allow London Underground to fund an extension of the Northern Line to the Battersea Power Station site. The work includes 3km of TBM driven tube-twin tunnels and two new stations, the Greater London Authortiy (GLA) announced late last week.

Workers missing after Cambodia tunnel collapse
11 December, 2012
Three workers are still missing in a rupture of a concrete tunnel at the Atay hydropower dam being constructed in western Cambodia, officials have told local news reporters. The incident happened on 1 December 2012 at the upper part dam when a tunnel on the left side dam collapsed, causing water in the reservoir to flood the dam’s lower part.

Logiventures delivers tunnel boring machines to Uma Oya project
07 December, 2012
A complex, high-precision logistical operation was recently executed in Sri Lanka by Logiventures, a subsidiary of the Hayleys Advantis Group, when it undertook to deliver two Tunnel Boring Machines to the Uma Oya Multi-purpose Development Project.

ME’s longest road tunnel completed
05 December, 2012
Abu Dhabi has completed the region’s longest traffic tunnel, local media reported recently. The 3.5km long tunnel, which is part of the AED 5bn (USD 1.3b) Al Salam Street Tunnel project, is part of a long-term blueprint by Abu Dhabi to expand its inhabited areas and road networks to cope with a sharp rise in the population.

First TBM for Malaysian MRT ready
05 December, 2012
The first TBM for the MRT Sungai-Buloh-Kajang project is now ready for delivery to Malaysia, local news reported earlier today. The machine, which is expected to be in use by May 2013, took nine months to be put together and is now being dismantled and prepared for shipping to Malaysia from Germany.