[669] - Electro-osmotic flow in clays and its potential for reducing clogging in mechanical tunnel driving

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Features
Citation
Heuser, M., Spagnoli, G., Leroy, P., Klitzsch, N., Stanjek, H., 2012. Electro-osmotic flow in clays and its potential for reducing clogging in mechanical tunnel driving. Bulletin of Engineering Geology and the Environment, 71 (4), 721 - 733. DOI: 10.1007/s10064-012-0431-x.
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Identification
Title(s):Main Title: Electro-osmotic flow in clays and its potential for reducing clogging in mechanical tunnel driving
Description(s):Abstract: Clogging during mechanical tunnel driving is not only a serious technical issue, but also an economic one. The costs of a tunnel excavation can easily rise and disputes between the awarding authorities and the executive companies may occur. Although the literature is full of cases describing the clogging in clayey soils and despite countermeasures being available, clogging still occurs. This study proposes an alternative method to diminish adhesion of clays on TBMs. Electro-osmotic flow experiments, spectral induced polarisation tests and Zeta-potential simulations were performed on kaolinite and smectite, mixed with several pore fluids under one critical consistency index. The results showed that the electrical parameters were not only influenced by the clay mineralogy per se, but also by the pore fluid chemistry. To apply the laboratory findings in in situ conditions, several theoretical considerations have been taken into account. Although further research is required, the study indicates electro-osmosis may be a new and revolutionary approach to deal with the clogging of TBMs.
Identifier(s):DOI: 10.1007/s10064-012-0431-x
Responsible Party
Creator(s):Author: Michel Heuser
Author: Giovanni Spagnoli
Author: Philippe Leroy
Author: Norbert Klitzsch
Author: Helge Stanjek
Publisher:Springer
Topic
TR32 Topic:Soil
Subject(s):CRC/TR32 Keywords: Mechanized Tunneling, SIP, Zeta Potential, Electro-Osmosis
File Details
File Name:2012_Heuser_BullEngGeolEnviron.pdf
Data Type:Text
Size(s):13 Pages
File Size:549 kB (0.536 MB)
Date(s):Date Accepted: 2012-06-23
Issued: 2012-08-10
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
Constraints
Download Permission:OnlyTR32
General Access and Use Conditions:For internal use only
Access Limitations:For internal use only
Licence:TR32DB Data policy agreement
Geographic
North:-no map data
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Measurement Region:Other
Measurement Location:--Other--
Specific Informations - Publication
Status:Published
Review:PeerReview
Year:2012
Type:Article
Article Type:Journal
Source:Bulletin of Engineering Geology and the Environment
Issue:4
Volume:71
Number Of Pages:13
Page Range:721 - 733
Metadata Details
Metadata Creator:Oliver Mohnke
Metadata Created:2013-12-02
Metadata Last Updated:2013-12-12
Subproject:A2
Funding Phase:2
Metadata Language:English
Metadata Version:V40
Dataset Metrics
Page Visits:358
Metadata Downloads:0
Dataset Downloads:2
Dataset Activity
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