The Structural Design and Laying of Small Underground Drains of Rigid Materials,

摘要

Factors affecting the choice of different types of pipes of rigid materials for use in small underground drains or sewers are discussed. Various methods of bedding them are described,with their merits and limitations,and tables are included giving the range of permissible cover depths for the various pipes when laid on these beddings. (Copyright (c) Crown Copyright 1977.)