An enormous section of the concrete structure appeared to have splintered like twigs.

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Pile: long heavy section of timber, concrete or metal, driven into the earth or seabed as support for another structure.

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The group wants the Highways Agency, which is responsible for the section, to replace the concrete with a "quieter and more suitable" material.

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The leak appeared to be from a section of piping at the station that is encased in concrete.

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