In-Plane Composite Drains

Serial Information: Civil Engineering—ASCE, 1984, Vol. 54, Issue 8, Pg. 48-51

Document Type: Feature article


Drainage of water from outside basement walls, behind retaining walls, or highway cut or fill slopes, has long been a problem. A common solution is the aggregate drain. Often, installation of aggregate drains is faulty. In the last few years a replacement for the aggregate drain, termed in-plane composite drains, has come on the market. This article shows the four different geometries of the eight products marketed in North America, gives case histories illustrating a range of applications, and gives a primer in design of drainage. Benefits of proper design and installation are reduction or elimination of leakage, and reduction of hydrostatic pressure against a wall.

Subject Headings: Aggregates | Composite materials | Drainage | Retaining structures | Case studies | Hydraulic design | Basements | Fills | North America

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