Eighth International Conference on Case Histories in Geotechnical Engineering
Sand and PV Drains—Historical Developments, Some Early Research, and Case Histories
Publication: Geo-Congress 2019: Soil Improvement (GSP 309)
ABSTRACT
The two oldest methods, both developed in the late 1920s and early 1930s, for reducing settlements and increasing the shear strength of foundations on soft clays are sand drains and the Kjellman paper “wick” drain. These early developments are described, including some special equipment developed for the installation of paper drains. Full-scale field tests were conducted by the Swedish Geotechnical Institute in the 1940s using Kjellman paper drains and in the 1950s on sand drains by Hansbo. In the early 1970s, the author and colleagues at the SGI investigated sand drain performance 14 years, after installation. About the same time, the first modern PV drain was developed by Wager, and two early case histories are presented: one a full-scale loading test and the other in which PV drains were used on timber piles to reduce excess pore pressures during piling installation. Suggestions for successful PV drain design and installation, especially for preloading and surcharging, are also given.
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REFERENCES
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Information & Authors
Information
Published In
Geo-Congress 2019: Soil Improvement (GSP 309)
Pages: 10 - 27
Editors: Christopher L. Meehan, Ph.D., University of Delaware, Sanjeev Kumar, Ph.D., Southern Illinois University Carbondale, Miguel A. Pando, Ph.D., University of North Carolina Charlotte, and Joseph T. Coe, Ph.D., Temple University
ISBN (Online): 978-0-7844-8211-7
Copyright
© 2019 American Society of Civil Engineers.
History
Published online: Mar 21, 2019
Published in print: Mar 21, 2019
ASCE Technical Topics:
- Business management
- Case studies
- Drainage
- Engineering fundamentals
- Foundation settlement
- Foundations
- Geomechanics
- Geotechnical engineering
- Irrigation engineering
- Methodology (by type)
- Practice and Profession
- Research and development
- Research methods (by type)
- Sandy soils
- Soft soils
- Soil dynamics
- Soil mechanics
- Soil properties
- Soil settlement
- Soil strength
- Soils (by type)
- Water and water resources
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