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Well-point techniques and the shallow water table in boulder clay

Visvalingam, M.; Visvalingam, Maheswari


M. Visvalingam

Maheswari Visvalingam


The reliability of water-table measurements in clay soil is currently under review (Twocock, 1971; Bonell, 1971; Visvalingam, 1972). This paper summarizes some of the experimental results from a boulder clay catchment in East Yorkshire. The experiments investigated the functioning characteristics of cased auger holes and piezometers in clay soil and compared the results with observations made with a neutron moisture probe. It appears that well-point technique, especially piezometers, are extremely unreliable in clay soil. The measured water level is demonstrated to be influenced by not only the position of the ‘water table’ but also the permeability of the soil; in which context the type, diameter, and length of tubing, as well as the time of installation, become important considerations.

Journal Article Type Article
Publication Date 1974-12
Journal Journal of soil science
Print ISSN 0022-4588
Electronic ISSN 1365-2389
Peer Reviewed Not Peer Reviewed
Volume 25
Issue 4
Pages 505-516
APA6 Citation Visvalingam, M., & Visvalingam, M. (1974). Well-point techniques and the shallow water table in boulder clay. The Journal of soil science, 25(4), 505-516. doi:10.1111/j.1365-2389.1974.tb01145.x
Keywords Well-point technique
Publisher URL
Copyright Statement ©2006, John Wiley and Sons
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