Open AccessDistributed monitoring of deformation of PCC pile under horizontal load using OFDR technology
Author(s) -
Lei Gao,
Yang Cao,
Han long Liu,
Gangqiang Kong,
Xing Cheng,
Xiao Lei Zhang
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/570/3/032064
Subject(s) - pile , deformation (meteorology) , reflectometry , displacement (psychology) , horizontal and vertical , moment (physics) , geotechnical engineering , position (finance) , geology , vertical displacement , structural engineering , materials science , geodesy , time domain , engineering , physics , computer science , psychology , oceanography , finance , classical mechanics , psychotherapist , economics , computer vision
To study the horizontal bearing behavior of cast-in-place concrete (PCC) pipes, a horizontal static load model test is conducted based on the optical frequency domain reflectometry (OFDR) technology. The deformation distribution in the pile is studied. Results show that the pile moment increases with the horizontal load, whereas the position of the maximum point of moment is roughly unchanged. Moreover, the calculated and measured values of horizontal displacement at the pile top are compared; results show that the values are in agreement, which demonstrates that the deformation of a PCC pile can be successfully measured using the OFDR technology.