Drylay

Drylay refers to a construction technique primarily used for installing new pipes or cables without the need for extensive excavation. This method is often employed in urban environments or areas where minimizing disruption is a priority. Instead of digging a continuous trench, drylay involves creating localized access pits at strategic intervals. The new pipe or cable is then fed through these pits, effectively pulling it underground between the access points.

This approach offers several advantages. It significantly reduces the amount of spoil generated and the subsequent need for backfilling and reinstatement. This can lead to faster project completion times and lower costs associated with traffic management and site restoration. Drylay is particularly well-suited for situations where existing underground utilities are present, as it avoids the risk of damaging them during a full trench excavation. Various types of pipes, including those made of plastic or ductile iron, can be installed using this method, as can telecommunication cables. The specific equipment used depends on the diameter of the pipe or cable and the ground conditions. While drylay is efficient, it requires careful planning to determine the optimal placement of access pits and to ensure the smooth passage of the new installation.