Tunnelling – Drain Pipes

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Tunnelling – Drain Pipes

Micro-perforated plastic drainage pipes for the consolidation of soils within tunnel excavations. The plastic drainage tubes are inserted into a pre-drilled hole in order to drain water from the soil behind or adjacent to the tunnel excavation.


The drainage pipes can be sheathed in a geotextile ‘sock’ to stop the perforations becoming clogged by fine material in suspension in the ground water. The drain pipes feature an innovative coupling system developed to facilitate rapid deployment.

Micro-perforated plastic drainage pipes for the consolidation of soils within tunnel excavations. The plastic drainage tubes are inserted into a pre-drilled hole in order to drain water from the soil behind or adjacent to the tunnel excavation.


The drainage pipes can be sheathed in a geotextile ‘sock’ to stop the perforations becoming clogged by fine material in suspension in the ground water. The drain pipes feature an innovative coupling system developed to facilitate rapid deployment.

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