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Lancashire hotspot

CONTRACTS

BACHY SOLETANCHE recently completed two piling projects less than 3km apart in the historic city of Lancaster.

Two teams worked simultaneously on the projects, one for an office complex and the other for an apartment development.

The larger scheme, at Caton Road, involved building a contiguous piled wall to support a £270,000 office development and provide an underground car park for it.

Working behind a row of houses, the Bachy team built 120 large diameter auger rotary-bored piles, with a 750mm diameter to 10m depth.

Bachy contract manager Steve Mallinson said: 'The project ran smoothly, although the tight confines of the site caused a few logistical problems.

'Added to this, the rock underneath the site was much harder than anticipated, which took its toll on the equipment - but the project still ran to schedule.' The eight-week programme finished in May.

The second contract involved building another contiguous piled wall, this time for luxury flats and an underground car park on the banks of the Lancaster Canal in the heart of the city.

Remnants of previous foundations had to be removed by main contractor Pinington Construction before piling could begin. Bachy Soletanche used CFA techniques to construct 393, 500mm piles to a depth of 17m.

Worth more than £200,000, the contract took a month to complete.

Phi Group's timber crib retaining wall system, Permacrib, was used in two ways at a housing development in Dumfermline near Edinburgh.

To provide garden space within tight site boundaries at Duloch Grange, the surrounding slopes had to be stabilised.

Permacrib was used as part of a gravity wall system and as soil nailing facing on the £300,000 contract for Bryant Homes Scotland. The wall retains a 22infinity slope, up to 6.25m high and 240m long, across a total area of more than 1000m 2.Work finished in May.

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