Descrizione fisica: xiv, 183 p. : ill. ; 30 cm.
Note generali: Includes bibliographical references (p. 119-130).
Introduction -- Drainage pipes, accessories and auxilary structures -- Envelope materials -- Water flow into and inside the drain -- The problem of clogging of pipes and envelopes -- Guidelines to predict whether an envelope is required -- Guidelines for installation and maintenance of drainage materials -- Research on drainage materials -- Standards for pipes and envelopes.
Reliable subsurface drainage systems for groundwater table and salinity control are needed to maintain or enhance the productivity of irrigated lands and to contribute to the rural development of lowlands in the humid tropic. This publication presents guidelines to assess the need for envelopes and for the selection of appropriate materials (i.e. pipes and envelopes) for the proper and lasting performance of subsurface drainage systems. In addition, it also contains guidelines for adequate installation and maintenance of drainage materials as well as the required specifications and standards of such materials, which may be used in tender documents for implementation of subsurface drainage works. Practical guidelines for the implementation of laboratory and field investigations to evaluate the performance of drainage materials have also been included.--Publisher's description.
Available both in print and online.
Also issued online.
ISBN: 9251054274
Serie: FAO irrigation and drainage paper ; 60, rev. 1
Altri nomi: Dierickx, W.
Martínez Beltrán, J.
Food and Agriculture Organization of the United Nations
Soggetti: Subsurface drainage - Materials
Classificazione: 627.54
