The J. Murphy & Sons Limited site team at Brentfield Park in North West London has taken delivery of its Lovat TBM that will be used to bore a 1.3km long, 2.59m i.d. cable tunnel for client, UK Power Netoworks.
Murphy is delivering a £10 million contract from Brentfield Park to Taylor’s Lane in Willesden which also includes the construction of two vertical 28m deep, 7.5m i.d. shafts at each end. Secant piling was used for one of the shafts and a 143m of shallow tunnel for junction and reception chambers has also been constructed.
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The TBM nicknamed ‘Bernice’, weighing 56 tonne was delivered to site from Murphy head office facility in nearby Kentish Town before being lowered into the Willesden reception shaft by a 250 tonne capacity mobile crane. Tunnelling will commence once TBM ‘Bernice’ and the ancillary equipment has been fully site tested and commissioned.