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HS2 Phase 2a: from the West Midlands towards Cheshire, UK

The £3.48 billion, 36-mile (58 kilometres) scheme will run between the new Curzon Street station in Birmingham City Centre to Crewe Station, with six services per hour planned.

The UK’s Department of Transport confirming the recent Act of Parliament now means HS2 Ltd will be allowed to begin work on constructing the next phase of the new high-speed railway between Crewe and Birmingham, the scheme is expected to support around 5,000 jobs during construction of this phase, with many more in the supply chain.

The track will include 17 viaducts, 65 bridges and 36 embankments. This amount of infrastructure requires a colossal undertaking for geotechnical ground investigations.

To meet this challenge, Robertson Geo Operational Services has been mobilising two field crews simultaneously with both running 9-11 probes per borehole. (To log 8 probes per borehole is a comprehensive suite of tools).

Infrastructure = Geophysical tools and a lot of data

Reliable and consistent data from wireline borehole logging provides an important understanding of rock strength and the presence of fractures that is essential for the location and positioning of new build construction and its foundations. Logging provides accurate and reliable data and is especially important in locations where collecting core samples is difficult and from poorly consolidated facies, weathered zones, soft formations, and shallow boreholes as examples …more

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