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Central-Wan Chai Bypass Tunnel within Central Reclamation Phase III
The Central-Wan Chai Bypass (CWB) and Island Eastern Corridor (IEC) Link are the proposed Trunk Roads connecting the existing Rumsey Street Flyover (Route 7) to the Island Eastern Corridor (Route 8) which form part of the east-west strategic route on the north side of Hong Kong Island . Atkins was commissioned by TDD to undertake the detailed design, tender preparation and site supervision of the CWB within Central Reclamation Phase III (CRIII). The scheme includes a cut-and-cover tunnel, with diaphragm walls providing the temporary and permanent support. |
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KCRC ˇV Kowloon Southern Link Contract No. KDB200 ˇV West Kowloon Station and Tunnels, Jordan Road to East Tsim Sha Tsui Station
Atkins is the Independent Checking Engineer for the Link 200 JV responsible for the Design and Construction of this project. The works include 1.3km of tunnels, constructed using a combination of cut-and-cover and Slurry type TBM. The TBM element includes two 1.1km long drives of the 8m diameter TBM. In addition to the tunnels, Atkins is also responsible for checking the design of the 400m long West Kowloon Station (cut-and-cover construction) and two emergency access/egress shafts. Atkins multidisciplinary team for this work includes specialists in geotechnical, structural, drainage, highways, railway, architectural and E&M. |
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Dubai Metro Green Line
The 17.6km long Green Line is the second line of the Dubai Metro to be constructed. Atkins is employed as the Contractor's designer for the Green Line, which includes 6 underground stations, 7km of TBM and 1000m of cut-and-cover tunnel. Atkins' Hong Kong office is responsible for the design of the 27m deep cut-and-cover tunnel sections (constructed using bottom up methods), two underground stations and three emergency escape shafts. We are also responsible for the design of the bored tunnel, which will be constructed using a 9.56m diameter EPB TBM. |
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Dubai Metro Red Line
The Dubai Metro will be the Arabian Peninsula 's first metro system and will ultimately comprise three lines. The Red Line is the first under construction, and Atkins is employed as the Contractor's designer. The Red Line will include 4.7km of 9.56m diameter TBM tunnel excavated using Earth Pressure Balance TBM, 1000m of cut-and-cover tunnel and four underground stations. Atkins' Hong Kong office is responsible for the design of the 27m deep cut-and-cover tunnel sections (constructed using bottom up methods), and the design of two underground stations, which are also constructed by cut-and-cover. |
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Central Kowloon Route
Atkins was the lead consultant for the preliminary design of this proposed major highway from To Kwa Wan to West Kowloon Reclamation. The scheme consists of 1900m of twin land bored tunnel, 1130m of cut and cover tunnels, ventilation buildings and major highway interchanges. The cut and cover sections, which vary between 12m to 34m in width and with depths of up to 28m, include a doubled to stacked arrangement over one section. The tunnel will pass within 4m of some 50-year-old buildings founded on shallow timber piles and more modern buildings on steel H piles and caissons. A cellular form of construction, involving transverse diaphragm walls at close centres , has been developed in order to minimise ground movements at critical sections. |
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Mass Transit Railway Corporation - Penny's Bay Link MTRC Contract No 581 - Tai Yam Teng Tunnel
Atkins was the Independent Checking Engineer (ICE) for Gammon Skanska Limited for the HK$1.9Billion Design and Construction of MTRC Penny's Bay Link (PBL) Contract No. 581 - Tai Yam Teng Tunnels. This 6m span, 3.2km long, single bore tunnelling project formed part of the MTRC PBL between Tung Chung and the Hong Kong Disneyland Theme Park at Penny's Bay on Lantau Island . A combination of cut-and-cover and drill-and-blast tunnelling techniques were used to construct this railway tunnel. Atkins was responsible to Gammon Skanska Limited for independently checking all aspects of the temporary works design for the cut and cover and bored tunnel. Atkins' multidisciplinary team for this project included specialists from the geotechnical, civil and structural teams. |
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West Rail Tsuen Wan Section Approach Tunnels Hong Kong
As part of the West Rail DD300 design contract, Atkins completed detailed design and construction supervision of approach tunnels to Tsuen Wan West Station. These comprised approximately 600m of cut and cover, reinforced concrete tunnels which cross a congested area of reclaimed land. Due to the variable level of rockhead beneath the site and the high water table, different sections of the tunnels were designed as either founded on rock via diaphragm walls or ˇ§floatingˇ¨ where rockhead was too deep. Both ˇ§top downˇ¨ and ˇ§bottom upˇ¨ construction methods were employed. The results of Value Engineering studies contributed to substantial construction cost savings and reduced or eliminated many programme constraints on this complex project. |
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Hong Kong Central Subway, Lantau Airport Railway
This contract involved the construction of 265m of pedestrian cut-and-cover tunnels in central Hong Kong . Part of the tunnel was constructed by cut and cover methods under Pedder Street and Connaught Road Central. Twin tunnels were also excavated under Exchange Square . A major breakthrough was also required into Central Station. Services included the design and design liaison support for the 265m long cut-and-cover tunnel. Atkins undertook the detailed geotechnical appraisal, computer modelling and detailed structural design of the proposed subway, and the instrumentation monitoring of the existing buildings and utilities design. |
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