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Laboratory Report LR 346 Selection of materials for sub surface drains

Publication Year

1970

Document Status

Current

Abstract

Discusses the part played by the various components of a sub surface drain in achieving adequate permeability and in preventing clogging of the drain by silt. Presents criteria for the grading limits of the backfill and reviews the porosity of the pipes in a drain. Finally, conclusions are presented.

Author

Spalding, R.

Publisher Information

Transport Research Laboratory

The Transport Research Laboratory (TRL) is an internationally recognised organisation providing research, consultancy, testing and certification for all aspects of transport.

Crowthorne House
Nine Mile Ride
Wokingham
TRL
UK

Website: http://www.trl.co.uk/
Email: enquiries@trl.co.uk
Tel: 01344 773131