Westbury Station Embankment Drainage

Project Overview

In response to an embankment failure sheet pilling was installed to secure the slope from further failures. As part of this remediation work Network Rail specified the use of Plati-Drain^® as a drainage solution. Preventing future issues arising from a build-up of hydrostatic and pore water pressure from behind the sheet piling.

Solution

Plati-Drains^® were percussively driven 6m into the embankment at a slight inclination through slots cut into the piles at 4.8m centres. In this application, the anchor head is a vehicle to drag the drain material into the ground providing an immediate channel for the water to flow from deep inside the embankment. The Plati-Drain^® system is a simple, quick and cost-effective solution to reduce hydrostatic and pore water pressure.