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Selected Projects
Our work spans across the globe with numerous projects in Canada, India, New Zealand, Australia, and Hong Kong.
Our wide-ranging network for personnel, equipment, and training from the best in the industry means that wherever your work takes you, your project is safe with us.
JAMMU AND KASHMIR - FORT ST. JOHN - BRISBANE - MELBOURNE - SYDNEY - CLYDE - HONG KONG - AUCKLAND - GREYMOUTH - MANAPOURI - TAUPO - WELLINGTON
XRL-822 Hong Kong Express Rail Link
HONG KONG, HKSAR (CHINA)
The XRL-822 Hong Kong Express Rail Link runs underground for 26 km, ending at Hong Kong's terminus station in West Kowloon. The Express Rail Link is a landmark transportation system which provides quick and reliable transport between Hong Kong and the Chinese mainland. The objective of the project is to cover a 7.65 kilometre section between Tse Uk Tsuen and Shek Yam in Hong Kong.
Scope
To cover a 7.65km section between Tse Uk Tsuen and Shek Yam via 5.08km twin-track tunnels.
Method
DRILL AND BLAST tunnel excavation, 190m² full face in hard rock conditions.
UNIQUE RELEASE NOTE procedure to ensure the safe working of each face process and activity.
CONCRETE FORMWORK including: travelling archform, OHVD, and dividing wall.
Dr. Syama Prasad Mookerjee Tunnel
JAMMU AND KASHMIR, INDIA
Formerly known as the Chenani-Nashri Tunnel, the Syama Tunnel is built under the lower Himalayan Mountain Range as an all-weather alternative to the existing National Highway 1A section, which winds through steep mountain terrain and closes for forty days per annum due to weather conditions. The tunnel is located at an elevation of 1.2km, and consists of a 9km main tunnel which connects to an escape tunnel via 300m of pedestrian passages, with vehicular crossings every 1.2km.
Scope
10.9km highway
Two tunnels 9km in length each
50m single-span bridge with 600m of embankments and slope cuttings
40km single-span bridge with 2km of surface works
Method
Sequential excavation and support via NATM (New Austrian Tunnelling Method).
Manapouri Second Tailrace Tunnel
TE ANAU, NEW ZEALAND
A second tailrace tunnel was needed to improve the output of the original Manapouri Power Station in New Zealand's Fiordland National Park. As the site is located within a UNESCO World Heritage Site, it was essential to construct the second tunnel with minimal effects on the surrounding natural habitat. The new tunnel is able to supply energy to an additional 64,000 households.
Scope
Single 10km x 10m diameter tunnel for second tailrace tunnel
Excavation of approximately 85,000m³ of rock
Rock cover varied from 90m at the portal to 1220mx
Method
SITE-SPECIFIC TBM created to bore through hard granite rock
NATURAL HABITAT RESTORATION using muck from tunnelling operation