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Byline: Nbm Media Pvt. Ltd. To ensure safe travel for passengers and mitigate disruptions caused by landslides, a concrete tunnel will be constructed at Laxmi Dungri area in Sambalpur city [...]

Whenever people talk about the quality of life, Stockholm is at the top of the list. To keep it at the top, the city is digging deep. A new superhighway, [...]

ABSTRACT Application of Fiber Reinforced Concrete (FRC) as the primary constitutive material of segmental tunnels is considered a feasible option in modern tunneling projects. The design of underground tunnels in [...]

ABSTRACT Foamed concrete has been widely used in tunnels where foamed concrete-rock joints are usually encountered. However, few studies have been conducted on the mechanical properties of the joint. To [...]

ABSTRACT This paper presents an experimental investigation on the applicability of the Barcelona (BCN) test to evaluate the mechanical properties of a macro-synthetic fiber reinforced concrete (MSFRC) submitted to high [...]

Tunnelling attention in Europe this year has swung from the Alps, following completion of excavation on the world-beating 57km long Gotthard high speed rail tunnel, to the UK with a [...]

Established in 1922 to serve the coal mining industry, it was not until 1972 that family owned Jennmar began manufacturing systems designed to support the roofs of tunnels and mines. [...]

The Karahnjukar hydro-power project involves driving some 70km of tunnels as well as dam construction and the building of an underground power plant. The initial tunnel construction using Tamrock rigs is already running well ahead of schedule and the first of the three Robbins TBMs is now on site and being assembled in the harsh winter environment.

The progress and future plans of the 56km Gotthard Alptransit tunnel between Erstfeld and Bodio are reviewed. The Gotthard tunnel is constructed mostly by using tunnel boring machines (TBMs).

The progress about the Lotschberg Alptransit tunnel between Frutigen and Raron in Switzerland is reviewed. The 34.8km Lotschberg tunnel is driven mostly by drill and blast, and also using tunnel boring machines (TBMs) alongside.

THE LIST OF 'STAR' PROJECTS IN Europe includes the Gotthard base rail tunnel through the Alps between Switzerland and Italy, which, at 57 km long, is the longest in the [...]

The subway tunnel under the Stuttgart airport in Germany was constructed so as to block subsuface water, rather than rerouting the water.

Section 2 includes twin bores for the London and Thames tunnels.

Geoconsult Arup Joint Venture designed an eastern route around Dublin to its port which included a tunnel.

The difficulties faced by the Dutch engineers in linking two European cities with high-speed-rail roads, in the famously flat Dutch countryside are discussed. Complicated contractual boundaries, accidents at the site, design changes demanded by local authorities and the difficulty in cutting through the peat and clay tested the nerves of the Dutch engineers and the technology used in boring tunnels.

The improvement of the S16 four-lane expressway between Landeck and Bludenz in Austria's Tyrol was started back in 1971, with the construction of the Arlberg road tunnel as its key [...]

Techniques used in the design and construction of the 24.5 kilometer Laerdal Tunnel, Norway, are discussed. The tunnel will be the longest in the world.

In June, 1994 WT reported on the Hitra Strait Crossing, a 5.65 km-long subsea three-lane road tunnel between the Norwegian mainland west of Trondheim and the offshore island of Hitra. [...]

Most civil engineering tunnels and those constructed as capital works in mining are provided with some form of lining system. The purpose of the lining is not only to provide [...]

Work on the 12.9 km long Pinglin highway tunnel in Taiwan started in late 1991. Since then, less than 5 km or 12% of the twin tube tunnel with its [...]

Almost everything about the Eastern Distributor highway tunnel through central Sydney is remarkable. Its size, its shape, its interior configuration, and its lining and support are all aspects which set [...]

The design of portals is becoming a complex part of modern tunnel planning. The limited space available at the portals in urban areas has always challenged designers to produce a [...]

The town of Falmouth is to be found in the extreme southwest of England on the south coast of Cornwall. As part of an ongoing programme of coastal water improvements [...]

The Kaponig tunnel near Spittal in Austria is just one of dozens of major tunnelling projects in a programme to upgrade rail transit services across the country. The 5.06 km [...]

The Inanda-Wiggins Aqueduct is located in the province of KwaZulu Natal, near the city of Durban and consists of a series of tunnels and pipelines. The aqueduct will convey raw [...]

A redesign of Boston's Central Artery/Tunnel project saved $300 million in construction costs. In addition to the savings, the $14-million redesign will temporarily provide a place to cast immersed tunnel tubes and serve as jacking pits. Conceived by Maguire/Harris, the redesign improves the efficiency of the alignments. Jacking of two vehicle tunnels and a ramp tunnel also provide substantial savings in excavation costs.

Records are made to be broken, and the latest to fall occurred on February 27th, 1996 when the record for TBMs in the 13-16 ft (4-5 m) class established by [...]

Unless prevented or controlled, ingress of water into road and rail tunnels will be detrimental to furnishings and the efficient utilisation and safety of the completed works. The effects will [...]

St. Louis derives its prosperity from its strategic location at the confluence of two of America's most important rivers, the Missouri and the Mississippi. An availability of cheap land for [...]

A new precast tunnel near Chicago promises to keep the U.S. at the forefront of a field where researchers work with matter that makes cement particles look like boulders and [...]

Ground movement induced by excavation has been one of the most critical concerns for the JLE project team. The Line, running as it does beneath some of the oldest, historically [...]

Two of the new stations on the JLE are complex underground mined stations in London Clay at London Bridge and Waterloo. Three are combined open-cut boxes with mined enlargements of [...]

Durability and a long, low-maintenance service life was the starting point for the design of the permanent single shell precast concrete and spheroidal graphite iron (SGI) segmental lining systems to [...]

As part of an on-going programme to improve national and international railway links for the year 2000 and beyond, Austria has embarked on excavation of a 9.8 km-long pilot tunnel [...]

Eleven tunnelling machines of five different manufacturers have excavated the 22.2 km of 11.1 km of nominal 4.4 m i.d. twin tube running tunnels which link the eight new underground [...]

The island of Jersey is just a few kilometres off the French coast. English is most commonly spoken although there is a Jersey French language, sterling is the currency and [...]

The world's largest EPB tunnelling machine, the 11 m diameter TBM for the Lyon bypass, is now roughly a third of the way on its first drive. Operating in very [...]

How to make an EPB TBM work well in loose running material beneath a high ground water table? The answer is associated increasingly with the skilled application of modern conditioning [...]

The Lower Engadin has always been a I rather remote region of the south east of Switzerland. During winters with strong snowfall access by road is difficult and costly to [...]

The Muni Metro Turnback (MMT) Project is a US$202 million extension of the San Francisco Muni Metro subway under Market Street. The MMT facility includes a 256 m (840 ft) [...]

The effects of high concentrations of motor traffic on people and the environment are becoming increasingly serious - traffic noise, dust and exhaust fumes are unhealthy and unwelcome. This is [...]