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DOI

Distributed temperature sensing (DTS) can be used to monitor the production process of diaphragm walls. DTS is able to differentiate between already present or fresh bentonite suspensions during refreshing of the bentonite slurry in the trench. During concrete casting, DTS is able to differentiate between the bentonite suspension and concrete. As a result, the continuity of the casting process and the arrival of good grade concrete at crucial locations in the trench can be monitored. Tests conducted on laboratory models provided reference information for interpretation of field data. Field experiences have shown the benefits of DTS tests and the predictive value of the reference measurements. Results are compared with crosshole sonic logging measurements at the same location.

Original languageEnglish
Pages (from-to)219-233
Number of pages15
JournalCanadian Geotechnical Journal
Volume54
Issue number2
DOIs
Publication statusPublished - 2017

    Research areas

  • Diaphragm wall, Distributed temperature sensing (DTS), Joint, Quality control

ID: 22717029