Distributed temperature sensing applied during diaphragm wall construction | Zendy

R. Spruit | Zendy; Frits van Tol | Zendy; W. Broere | Zendy; Pieter Doornenbal | Zendy; Victor Hopman | Zendy

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Distributed temperature sensing applied during diaphragm wall construction

Author(s) -

R. Spruit,

Frits van Tol,

W. Broere,

Pieter Doornenbal,

Victor Hopman

Publication year - 2016

Publication title -

canadian geotechnical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.032

H-Index - 118

eISSN - 1208-6010

pISSN - 0008-3674

DOI - 10.1139/cgj-2014-0522

Subject(s) - diaphragm (acoustics) , trench , slurry , geotechnical engineering , geology , bentonite , casting , suspension (topology) , process (computing) , materials science , computer science , acoustics , composite material , vibration , physics , mathematics , layer (electronics) , homotopy , pure mathematics , operating system

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.

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