Geotechnical Issues of Problem Soils (Swelling, Dispersive, Soluble and Collapsible) in Irrigation Channel Construction Geotechnical Problems of Problem Soils to Irrigation Channel Construction

Document Type : Original Article

Authors

1 Engineering Geology PhD Student, Ferdowsi University, Mashhad,

2 Dr, Ferdowsi University of Mashhad, Faculty of Sciences;

3 Assistant Professor of Isfahan University, Isfahan

4 - Ms of Geotechnic, Zayandab Consulting Engineers Co., Isfahan

Abstract

Water transmission Channels in irrigation networks usually constructed on soils. Geotechnical properties of the soils must be evaluated exactly in channel routs. Fine grain soils that may be swelling, dispersion, collapsible and soluble, can make most problems for channels. If the soil has been a swelling function, its volume will be increase during wetting and it cause to raise and break the channel concrete lining. While the soils have dispersion and collapse properties or contain some soluble materials, its structure will be changed and settled. Then, the channel will be destroyed.
This paper evaluate the geotechnical properties of south Roudasht and Mahyar irrigation channels in Isfahan province and Soork irrigation channel in Chaharmahal va Bakhtyari province. As encounter to soluble, dispersive and collapsible soils, we present suitable treatments such as soil exchange, flooding with loading and channels waterproofing.

Keywords

References

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Irrigation and Water Engineering
Volume 3, Issue 4 - Serial Number 12
September 2013
Pages 1-10

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