Infrastructures, Volume 8, Issue 10
2023 October - 18 articles
Cover Story: This paper presents the installation and use of an innovative pavement monitoring system based on FBG optical sensors that measure the strains imposed on the pavement and the corresponding temperature. A calibration procedure was implemented with FWD tests and heavy vehicles passing over sensors to validate the system installation. The results obtained confirmed the importance of adequately choosing the distance between sensors and increasing the sensor concentration in wheel paths. Furthermore, for loads between 25 kN and 65 kN, raising the temperature by 8 °C caused an increase of about 20% in the horizontal tensile strains measured in the pavement. In summary, this innovative system can capture the effects of temperature and vehicle speed on the pavement response, which may be considered an advantage of this monitoring system. View this paper - Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
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