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CLP 400kV Route Selection Study, Hong Kong
To cope with the increasing demand of electricity and to ensure the reliability of supply in Hong Kong , CLP is proposing a new 400kV circuit route, which will traverse through several Districts, Country Parks and the Castle Peak Firing Range . Atkins is responsible for the development and detailed assessment of short-listed routes in respect to constructability, engineering, land requirements, environmental, planning, landscape and visual and cost acceptability to identify a preferred route, through a Government Steering Group, for further study, including EIA and public consultation. Atkins is also responsible for the implementation of a structured risk management process.
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CLP Cable Tunnels, Hong Kong
Atkins was commissioned by CLP to prepare reference designs and contract documentation for four large cable tunnels located at; Kwai Chung, Tsz Wan Shan, Chi Ma Wan and Tuen Mun. Various tunnelling techniques were used including, TBM, Drill & Blast and Pipe Jacking. The scope of work included pre-contract consultancy services including cost estimation, preparation of scheme design, contract documents, contract strategy, value and risk management workshops and tender assessment. A key aspect of the assignment was to assist CLP in developing a new enhanced from of contract procurement. This involved the use of Key Performance Indicators to assess the contractor's performance. |
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CLP Castle Peak Cable Tunnel, Hong Kong
Atkins was appointed by CLP to prepare a Scheme Design, contract documentation and provide assistance with the procurement of the design and build contract, and is now providing site supervision for this 4.5km cable tunnel under a separate agreement. The tunnel which runs between Castle Peak Power Station and Tuen Mun has been designed to house 8 nos. of 132kV circuits and is envisaged to be completed in 2009. |
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CLP Cable Crossings at Pui O, Hong Kong
Atkins was responsible for the Scheme Design, contract documentation and provided assistance with the procurement of the Design and Build Contract for the design and construction of cable crossings at Pui O for CLP. Atkins was also responsible for the site supervision services of the works. The project comprised 300m long horizontal directional drilling (HDD) drives, which would house 132kV electrical power circuits serving Cheung Chau. HDD was selected due to the environmentally sensitive area of Pui O beach. The cable crossings involved drilling 300mm pilot holes using a combination of magnetic and gyroscopic survey tools to monitor the drill head position. The pilot holes were then enlarged by reaming. |
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CLP Ma Wan and Kap Shui Mun Channels Cable Crossing, Hong Kong
Atkins was appointed as the civil works designer by the Design and Build contractor for this technically challenging horizontal directional drilling (HDD) project between Sham Tseng, Ma Wan and Lantau Island for CLP. The project consisted of 6km of 550mm diameter HDD drives to house both 132kV and 11kV power cables. The works also included land cable trenches and reception chambers at the landfall areas. This is the longest cable crossing using HDD constructed in Hong Kong and was extremely challenging due to its length, geometric arrangement and ground conditions. |
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HKE Underground Power Transmission System –
Nam Fung Road to Mount Parker
Atkins was appointed as the Geotechnical and Tunnel Consultant for this project, consisting of 5.4km of 4.8m diameter rock tunnel, 120m soft ground tunnel, 400m of access / ventilation tunnel and 220,000m 3 of site formation and foundation works for a substation, switching station and the tunnel portals. The underground power cable system distributes power from Hong Kong Electric's power station on Lamma Island to the eastern part of Hong Kong . Atkins scope of work included; feasibility study, site investigation, design, design submissions and approvals, tender evaluation, construction supervision and detailed logging and support installation. |
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HKE Underground Power Transmission System –
Wah Fu to Bowen Road
Atkins was appointed as the Geotechnical and Tunnel Consultant for this project, consisting of 1.6km of buried cable trough, 3.1km of bored rock tunnel and site formation and foundation works. Atkins scope of work included; site investigation, design, design submissions and approvals, tender evaluation and construction supervision. Slope stability design work was carried out for much of the length of the trough and at both tunnel portals. Stabilisation measures including had dug caisson walls with rock anchor supports and retaining walls were installed. |
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CLP Risk Assessment for Refurbishment of OHL Transmission Towers, Hong Kong
Atkins was appointed by CLP's Procurement Department to undertake a risk assessment of the tender and contract documents for refurbishment of OHL transmission towers. The appointment came following the receipt by CLP of diverse tenders for the refurbishment work. A Risk Assessment Workshop was facilitated by Atkins and attended by CLP staff. At the workshop, the original tender requirements were examined and risks within them identified and categorized. A risk register was produced and then sent to the tenderers to ask if these risks had been recognized and how the tenderer intended to address them. The resulting responses were used in the final tender assessment. |
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CLP, Design & Supervision of Construction of 132kV Substations
Atkins was appointed by Simon Kwan & Associates to provide structural and geotechnical services for the provision of four CLP substations at Discovery Bay , Hung Hom Bay , Pak Shek Kok and Wan Po Road . Atkins was responsible for the structural and geotechnical design, acted as the Registered Structural Engineer and provided full time site supervision staff during construction. The project was undertaken over a four year period, which commenced in 2001 and was practically completed in late 2005. |
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CLP, Design & Supervision of Construction of Transmission Substation Projects
Atkins was appointed by Hip Hing to provide structural and geotechnical services for the provision of up to eleven CLP substations to be commissioned on or before 2009, procured on a design and build basis. There are currently six substations with known locations, these being located at; Airport, Fu On Street, Junk Bay road, Lai Cheung Road, Ma Wan and Yiu Wing Street. The details for the remaining five substations are not yet confirmed. Atkins is responsible for the structural and geotechnical design, acted as the Registered Structural Engineer, Registered Geotechnical Engineer, temporary traffic management schemes and provided full time site supervision staff during construction. |
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