Installation Stress in Prefabricated Vertical Drains

Prefabricated vertical drains (PVDs) normally consist of a core and a filter (sleeve) made with polymeric materials. Modern installation rigs are capable of installing them at considerable speed in soft soil deposits. This note reports the tension developed in a PVD filter sleeve during the installa...

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Bibliographic Details
Published in:Journal of geotechnical and geoenvironmental engineering 2003-09, Vol.129 (9), p.858-860
Main Authors: Karunaratne, G. P, Chew, S. H, Leong, K. W, Wong, W. K, Lim, L. H, Yeo, K. S, Hee, A. M
Format: Article
Language:English
Subjects:
Applied sciences
Building structure
Buildings. Public works
Construction (buildings and works)
Exact sciences and technology
Geotechnics
Prefabricated structure
Stresses. Safety
Structural analysis. Stresses
Structure-soil interaction
TECHNICAL NOTES
Water effect, drainage, ground water lowering, filtration
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Summary:Prefabricated vertical drains (PVDs) normally consist of a core and a filter (sleeve) made with polymeric materials. Modern installation rigs are capable of installing them at considerable speed in soft soil deposits. This note reports the tension developed in a PVD filter sleeve during the installation process, which was monitored with strain gauges. A tension of about 1,000 N was measured near the shoe shortly after the commencement of mandrel withdrawal. The need to watch the stresses in PVD in relation to the material properties of the components is highlighted.
ISSN:1090-0241
1943-5606
DOI:10.1061/(ASCE)1090-0241(2003)129:9(858)