| 摘要 |
PURPOSE: A process of constructing multi-drainage pipes promoting the dehydration of poor ground is provided to simplify the construction by stable, lightweight and flexible multi-drain pipes. CONSTITUTION: The process of constructing multi-drainage pipes promoting the dehydration of poor ground comprises: installing a multiple ductile holed-pipe(15) containing numbers of ductile holed and winkled-pipes covered with non-woven fabrics with a good drainage capability to poor ground at regular distances and leaving part of the pipe projected on the ground; laying sand on the poor ground to form drainage layer and constructing a multiple ductile holed-pipe(15) as a horizontal drainage pipe; laying soil on the drainage layer. Consequently, water passes through the non-woven fabrics and flows between a side drainage way(11) and a central drainage way(10), then reaches the drainage layer and the horizontal drainage pipe, finally flows into a containing water way.
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