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Home > Fugro to assist York Potash investigations

Fugro to assist York Potash investigations

Tris Thomas

Written by Tris Thomas on 02/08/2017 in News

Tagged: underground

Fugro has been awarded two major new contracts integrating geotechnical and geophysical investigations at Sirius Minerals’ North Yorkshire polyhalite project in the UK.

The geo-intelligence and asset integrity solutions company has won a new geotechnical package comprising seven deep boreholes in shaft and tunnel locations at the new UK mine located 3.5km south of Whitby in North Yorkshire. Fugro is undertaking strength tests of the rock formation, drilling to depths in excess of 420m.

The project is developing the world’s largest known high grade polyhalite deposit, a highly effective organic agricultural fertiliser. Construction includes a new mine to extract the ore, a 37km tunnel hosting an underground mineral transportation system (MTS), a granulation facility in Teesside, and an export quay on the River Tees.

Under the second contract, Fugro is carrying out an 11-month programme of seismic investigations and wireline logging which will be fully integrated with the geotechnical work to maximise both data yield and quality.

The combined programme will allow a detailed assessment of geological conditions to 500m depth ahead of TBM operations along the MTS alignment.

Rod Eddies, Fugro’s geophysical lead on the project, said: “Supporting Sirius Minerals’ project, which includes the UK’s longest tunnel scheme, presents an exciting challenge. The information we are obtaining will provide Sirius with a more complete ground model along the tunnel alignment and will help in the design and planning of the tunnel boring machine operations.”

Fugro has previously completed a series of geotechnical investigations across the project under three contract awards between 2013 and 2016. These have included preliminary geotechnical and hydrological investigations at the mine site, seven deep boreholes along the transport corridor and at the export dock, and a challenging deep inclined hole for fault characterisation.

The two latest contracts are already underway, with drilling and sampling expected to continue to the end of the year and geophysical activities to May 2018.

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