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A platform for research: civil engineering, architecture and urbanism
Distributed Optical Fiber Strain Sensing in a Secant Piled Wall
An optical fiber strain sensing technique, based on Brillouin Optical Time Domain Reflectometry (BOTDR), was used to obtain the full deformation profile of a secant pile wall during construction of an adjacent basement in London. Details of the installation of sensors as well as data processing are described. By installing optical fiber down opposite sides of the pile, the distributed strain profiles obtained can be used to give both the axial and lateral movements along the pile. Measurements obtained from the BOTDR were found in good agreement with inclinometer data from the adjacent piles. The relative merits of the two different techniques are discussed.
Distributed Optical Fiber Strain Sensing in a Secant Piled Wall
An optical fiber strain sensing technique, based on Brillouin Optical Time Domain Reflectometry (BOTDR), was used to obtain the full deformation profile of a secant pile wall during construction of an adjacent basement in London. Details of the installation of sensors as well as data processing are described. By installing optical fiber down opposite sides of the pile, the distributed strain profiles obtained can be used to give both the axial and lateral movements along the pile. Measurements obtained from the BOTDR were found in good agreement with inclinometer data from the adjacent piles. The relative merits of the two different techniques are discussed.
Distributed Optical Fiber Strain Sensing in a Secant Piled Wall
Mohamad, Hisham (author) / Bennett, Peter J. (author) / Soga, Kenichi (author) / Klar, Assaf (author) / Pellow, Adam (author)
Seventh International Symposium on Field Measurements in Geomechanics ; 2007 ; Boston, Massachusetts, United States
FMGM 2007 ; 1-12
2007-09-21
Conference paper
Electronic Resource
English
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