Search Results: 'Southern Water'

Overlooking the south
20 December, 2011
Compared to other regions of the U.S. and Canada there are few large-scale projects in the southeast, but that may not be the case for long, Nicole Robinson reports

Meeting challenges under pressure
14 November, 2011
Traditional compressed air work in tunnelling, also referred to in some quarters as caisson work and diving, has all but disappeared in modern tunnelling, but new challenges have been thrown up by deeper tunnels and those of larger section. These are being taken up by sophisticated procedures to ensure the safety of those involved in necessary work. Maurice Jones reviews some leading practitioners and their tunnelling work and equipment. Additional material from Nicole Robinson

Sinking a station
19 October, 2011
An extraordinary variation on the immersed tube method, combined with innovative foundation works, has been used to take the Amsterdam north-south metro line underneath the 19th century Centraal Station, reports Adrian Greeman

Canada keeps on an even keel
18 October, 2011
Staying consistently strong for the past several years, with many large projects set to last throughout the rest of the decade and beyond, the tunnelling market in Canada is enjoying a lengthy period of buoyancy, Nicole Robinson reports

Precast in practice
18 October, 2011
Water shortages, rogue quarries and supply constraints are tackled at the Peenya precast plant in India. Alex Conacher speaks with Yogini Vimalanathan of Mott MacDonald and Russell Brown of CEC

Where the work is
18 October, 2011
As T&TI goes to press the general and business media are awash with stories of economic gloom and dire predictions, and yet the tunnelling industry in Western Europe seems relatively buoyant. Can this comparatively happy state continue? Maurice Jones checks on the major current and planned projects and the prospects for some big players headquartered in Western Europe

Mitigation and alternatives: making hand mining better
26 September, 2011
A current trend in tunnelling, as in many other industries, is against manual labour, but in many situations hand mining seems the logical first choice until one considers the hazards involved that are arguably greater then those associated with large-section tunnelling. Maurice Jones checks on the current status of the activity, mitigation to improve hand mining, and the alternatives offered by some equipment manufacturers.

The Eupalinos’ Tunnel on the Island of Samos
16 September, 2011
A dictator’s legacy, brutal working conditions and ancient instrumentation are examined in this report on what was both the longest tunnel ever built at the time and the first to be driven from both ends. Dr Myles O’Reilly, chairman of the T&TI Editorial Advisory Board, gives an insight into the techniques, thinking and capabilities of ancient tunnellers

Grouting supports tunnelling market
24 August, 2011
The principles of grouting to improve the stability of ground around underground excavations has been known for a long time, but greater attention to the basic questions of ‘where?’ and ‘when?’ has led to grouting operations that are much more sophisticated than pumping mortar into the ground more in hope than judgement. Maurice Jones explores some of the more advanced grouting techniques now being used and how they help make more tunnelling projects possible or easier

Long tunnels for the Longhorn state
15 August, 2011
In the southwest, Texas is making work in a region not known for big tunnelling projects, Nicole Robinson reports

Bangalore’s first bore
20 July, 2011
The first slurry TBM to be used in India has launched on the Bangalore east-west metro. Jon Young attends the launching ceremony

Breathtaking end to Cleaner Seas for Sussex drives
04 July, 2011

Singapore’s cable tunnels
15 June, 2011
Contractors hoping to construct Singapore’s planned cable tunnels are going to face highly variable ground conditions, very hard rock and some deep bores. Leslie Pakianathan of designer Mott MacDonald describes the plans and challenges

Use of underground space in Korea
14 June, 2011
Hee Soon Shin, of Korea Institute of Geoscience & Mineral Resources in Daejeon, provides this paper

The way of the West
14 June, 2011
While the major cities of California are pouring money into water and transportation projects, Seattle prepares itself for one of the most significant projects the tunnelling industry has seen yet. Nicole Robinson explores west coast market

The tale of three cities
10 June, 2011
The market for tunnelling in North America is strong but also struggling due to political and financial pressures, and more recently public outcry. Nicole Robinson profiles tunnelling projects in New York, Seattle and Toronto

Stubborn to a fault
10 June, 2011
Construction of Intake No. Three at Lake Mead, Nevada, requires tunnelling beneath the lake and blasting at Saddle Island. With a deadline driven by the region’s drought conditions and drinking water at stake, progress on the project’s longest tunnel has been marred by a fault near the starter tunnels as Nicole Robinson reports from site

Moving forward under Second Avenue
09 June, 2011
The hustle and bustle of New York’s streets doesn’t stop at the pavement. Beneath the city a number of subway projects are taking shape to provide transit for more than eight million residents plus the tourists who flock there every year. Nicole Robinson reports on tunnelling for the new subway line beneath Second Avenue

Clean water, clear future?
13 April, 2011
Like much of the northeast, Hartford, Connecticut, is busily rehabilitating its sewer system. The Metropolitan District’s Clean Water Project is one of the biggest sources of microtunneling in the region. Although just how much work will come from the project is still under consideration. Nicole Robinson investigates the tunneling hotspot of Hartford

Big city constraints
13 April, 2011
The first phase of New York City’s long-awaited Second Avenue Subway line is under construction. Nicole Robinson talks to Schiavone Construction Co. LLC’s Julio Martinez and Chris Cosenzo about the challenges of tunneling in the densely-populated east side of Manhattan