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

Visvalingam, M.; Visvalingam, Maheswari

Abstract

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.

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. https://doi.org/10.1111/j.1365-2389.1974.tb01145.x

• Journal Article Type: Article
• Online Publication Date: Jul 28, 2006
• Publication Date: 1974-12
• Deposit Date: Oct 28, 2015
• Publicly Available Date: Nov 23, 2017
• Journal: Journal of soil science
• Print ISSN: 0022-4588
• Peer Reviewed: Not Peer Reviewed
• Volume: 25
• Issue: 4
• Pages: 505-516
• DOI: https://doi.org/10.1111/j.1365-2389.1974.tb01145.x
• Keywords: Well-point technique
• Public URL: https://hull-repository.worktribe.com/output/380546
• Publisher URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2389.1974.tb01145.x/abstract
• Additional Information: These articles are posted for personal research purposes only. If you wish to reuse material from these articles for any other purpose, please seek permission from Wiley.
• Contract Date: Nov 23, 2017