Date
01 Jun 1988, 1:00 pm - 5:00 pm
Abstract
This paper relates to the conversion of a disused water reservoir into a landfill site for domestic and industrial refuse. The reservoir was initially subdivided into four cells (by using earth bunds) and three of the cells have been successfully prepared and filled. The fourth cell is the largest and presents the greatest number of geotechnical problems, the major one being the problem of ensuring that leachate does not escape into the groundwater. The first owner of the site removed natural clay from various parts of the reservoir base to seal the first three cells. In doing so he exposed water-bearing sandstones, mudstones and badly-shattered shales and ground water is now issuing freely from these strata. Standpipes in the base of the completed cells indicate a significant artesian pressure in the groundwater and sealing of the exposed rocks in cell 4 represents a major problem. In an attempt to form a low permeability seal with compacted clay temporary pressure relief drains have been installed to connect with the water bearing rocks. However closure of these drains may lead to excessive uplift pressure and rupture of the seal and so the relief drains will be left open, whilst waste is placed, until they can be safely closed.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
2nd Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1988 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Sarsby, R. V., "Control of Uplift from Ground Water" (1988). International Conference on Case Histories in Geotechnical Engineering. 5.
https://scholarsmine.mst.edu/icchge/2icchge/2icchge-session1/5
Control of Uplift from Ground Water
This paper relates to the conversion of a disused water reservoir into a landfill site for domestic and industrial refuse. The reservoir was initially subdivided into four cells (by using earth bunds) and three of the cells have been successfully prepared and filled. The fourth cell is the largest and presents the greatest number of geotechnical problems, the major one being the problem of ensuring that leachate does not escape into the groundwater. The first owner of the site removed natural clay from various parts of the reservoir base to seal the first three cells. In doing so he exposed water-bearing sandstones, mudstones and badly-shattered shales and ground water is now issuing freely from these strata. Standpipes in the base of the completed cells indicate a significant artesian pressure in the groundwater and sealing of the exposed rocks in cell 4 represents a major problem. In an attempt to form a low permeability seal with compacted clay temporary pressure relief drains have been installed to connect with the water bearing rocks. However closure of these drains may lead to excessive uplift pressure and rupture of the seal and so the relief drains will be left open, whilst waste is placed, until they can be safely closed.
