Ask us a question

    Site survey for efficient power generation

    ESB International, an Irish state-owned electricity company, developed an 860-MW natural gas combined-cycle gas turbine (CCGT) power plant at Carrington, Manchester, UK.

    The plant will operate at about 57% fuel efficiency, compared with the 30โ€“35% efficiency of the former power station on the same site. As part of the development, ESB also planned to construct a 3-km gas pipeline from the National Transmission System to the CCGT site. The pipeline route passes through land with several different owners, including Peel Holdings, Maro Developments, Shell and National Grid Gas.

    We were tasked with carrying out a geophysical and intrusive investigation of the proposed gas pipeline route to determine the location of all the below-ground services, foundations, geological constraints such as faults and other obstructions that would render it infeasible to lay a 600-mm diameter steel gas pipe along the proposed corridor. We also acted as principal contractor throughout the site work and managed all the contractors and the health and safety aspects.

    Phase 1: Geophysical survey
    Our surface geophysics survey covered a 50-m-wide corridor along the pipeline route. For the buried services, we used state-of-the-art radio-detection instruments jointly with a fully documented inspection cover lifting exercise and a ground penetrating radar (GPR) survey using a 400-MHz radar system. Our specialists combined all the utility tracing, visual inspection and GPR information with a topographic base plan of the site and existing utility record drawings to produce a comprehensive plan of the services crossing the pipeline route. Electromagnetic techniques using EM31 and EM61 instruments complemented the radio-detection and GPR techniques.

    Phase 2: Detailed investigation
    After completing the geophysical survey, we opted for a targeted intrusive investigation to establish the nature and depth of the features identified in the geophysical survey. The intrusive techniques included hand-dug, machine-excavated and vacuum-excavated trial pits; we targeted more than 100 locations along the proposed pipeline to prove the anomalies. We conducted a concurrent borehole investigation of the sandstone bedrock along the route that revealed a discontinuity. We used a host of geophysical techniques (resistivity imaging, seismic refraction and surface wave ground stiffness) to determine the nature and structure of this possible fault. The seismic survey showed a sudden drop in the seismic velocity corresponding to a vertical displacement of about 10 m.

    Using specialist downhole seismic, GPR and magnetometer instruments, our specialists completed further geophysical testing on a series of boreholes drilled near the former pump house and along the water coolant culvert. The results revealed that the piles extended about 11 m below ground level and were not reinforced. This information aided the design of the redevelopment plans. We finished our programme of work on schedule and within budget.

    • Location: England
    • Project status: Complete
    Supporting the creation of a new garden village in Cheshire
    View Project
    Repairing lightning damage on a wind turbine in Scotland
    View Project
    Helping Singapore meet its future waste disposal needs
    View Project
    Designing and assessing an onshore wind farm in the Highlands of Scotland
    View Project
    Designing and assessing proposed windfarms in Scotland
    View Project
    Environmental and social risk appraisal support for African โ€œpower-to-xโ€ development
    View Project
    Consulting on the construction of the Keppel Marina East Desalination Plant, Singapore
    View Project
    Bringing international best practice and process to phase 2 of Singaporeโ€™s Deep Tunnel Sewerage System
    View Project

    ๐Ÿ“ธ #selfiesonsite ๐Ÿคณ

    Hugh Neatherway from RSK Response on-site with the RSK Response tanker in Shoreham, UK, on a nice spring day!

    Want to join our team? View our latest opportunities ๐Ÿ‘‰ www.rskgroup.com/careers

    #RSKgroup #behindthescenes #meettheteam #RSKfamily #RSKonsite #construction #engineering #spring
    ...

    ๐—ฃ๐—ฒ๐—ฑ๐—ผ๐—บ๐—ฒ๐˜๐—ฒ๐—ฟ ๐—–๐—ต๐—ฎ๐—น๐—น๐—ฒ๐—ป๐—ด๐—ฒ ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฎ: ๐—ฆ๐˜๐—ฒ๐—ฝ๐—ฝ๐—ถ๐—ป๐—ด ๐˜๐—ผ ๐˜€๐˜‚๐—ฐ๐—ฐ๐—ฒ๐˜€๐˜€ ๐—ถ๐—ป ๐˜„๐—ฒ๐—ฒ๐—ธ ๐Ÿฎ

    ๐Ÿšถ Our week one results are in and our RSK Group step count has just passed 79,085,394 steps!

    ๐Ÿ‘ Colleagues across the group share their progress and tips in our latest article in our story!

    ๐Ÿ’š Keep sharing your adventures on social media using the hashtag #RSKSteps

    #RSKGroup #wellbeing #health #walking #pedometer #steps #nature #landscape
    ...

    ๐Ÿ‘ท Did you know that the UK #construction industry contributes around 40% of the countryโ€™s total #carbonfootprint?

    ๐Ÿ“Œ Sarah Cook, Chartered Geologist and Associate Director of RSK company Leap Environmental Ltd, presented Leapโ€™s foundation carbon calculator in one of our latest webinars.

    ๐Ÿ—๏ธ This tool has been developed to consider embodied carbon associated with foundations and will enable developers to identify carbon costs and potential savings early in the #design process.

    Find out all about our past and future events in our story!

    #RSKEvents #RSKGroup #RSKfamily #sustainability #constructionindustry #building #carbonemissions #carboncalculator #co2
    ...

    ๐Ÿ‘ Barcelona-based RSK company Amphos 21 is set to take part in one of the most extensive groundwater chemistry modelling projects that has ever been conducted.

    ๐Ÿ–ฅ๏ธ What does this exciting project entail? What is the ultimate goal? Find out all the details in our story!

    #RSKGroup #RSKfamily #groundwater #supercomputer #sustainability #sustainable #enviromental #waterindustry
    ...

    #selfiesonsite ๐Ÿคณ

    Scott and Piotr ready to get started on steel fencing works for East West Railway Company!

    ๐Ÿ“ธ @lewisjimmy83

    Want to join our team? View our latest opportunities ๐Ÿ‘‰ www.rskgroup.com/careers

    #RSKgroup #behindthescenes #meettheteam #RSKfamily #RSKonsite #construction #railway #careers
    ...

    ๐Ÿ’ก All-Energy 2022 starts Tomorrow!

    ๐Ÿค #RSKGroup will be exhibiting at the event, alongside two of our companies: Stephenson Halliday and Headland Archaeology (UK) Ltd

    ๐Ÿ“Œ Come visit us:
    ๐—ฅ๐—ฆ๐—ž ๐—š๐—ฟ๐—ผ๐˜‚๐—ฝ - Stand D60B
    ๐—ฆ๐˜๐—ฒ๐—ฝ๐—ต๐—ฒ๐—ป๐˜€๐—ผ๐—ป ๐—›๐—ฎ๐—น๐—น๐—ถ๐—ฑ๐—ฎ๐˜† - Stand H58
    ๐—›๐—ฒ๐—ฎ๐—ฑ๐—น๐—ฎ๐—ป๐—ฑ ๐—”๐—ฟ๐—ฐ๐—ต๐—ฎ๐—ฒ๐—ผ๐—น๐—ผ๐—ด๐˜† - Stand J61

    We would love to see you there!

    ๐Ÿ“… 11-12 May 2022
    ๐Ÿ“ SEC, Glasgow

    #RSKFamily #RSKevents #renewables #energy #renewableenergy #sustainability #enviroment #ecofriendly
    ...

    Copy link
    Powered by Social Snap