geotextile

Definition

Any strong, permeable fabric used in earthworks for any of a number of purposes, including separation of soil layers, filtering, reinforcing, erosion protection and protection of drainage pipes from clogging.

Etymology

From geo- + textile.

Example Sentences

• "You need to excavate and remove the topsoil, line the subsoil with a geotextile, then lay and compact hardcore."
• "The design also included geotextile lining of the trench in which the drainage pipe was buried."