Application of Fiber Bragg Grating Earth Pressure Sensor in Safety Monitoring for Electric Steel Tower Foundation

De Li Li; Jun Hua Xue; Zhen Gang Zhao; Ying Na Li; Tao Xie; Xin Xiong; Chuan Li

doi:10.4028/www.scientific.net/AMR.709.365

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 709Application of Fiber Bragg Grating Earth Pressure...

Application of Fiber Bragg Grating Earth Pressure Sensor in Safety Monitoring for Electric Steel Tower Foundation

Abstract:

Power transmission tower is an important part of power transmission equipment. The tower foundation is suffered by landslides, debris flows, erections of foundation settlement and so on. The power transmission tower near Yanjin transformer substation is selected to be measured. By using fiber Bragg grating (FBG) earth pressure sensor, the earth pressure of tower foundation is measured. The long-term monitoring data indicate that the #1 sensor daily variations amplitude of earth pressure is 7.22KPa, and the #2 sensor daily variations amplitude of earth pressure is 4.69KPa. In the 479 days, the rangeability of average data is 61.55KPa in sensor #1 and 64.05KPa in sensor #2. Compared with the local precipitation, the earth pressure of tower foundation is seasonal change. According to the history data, the warning threshold value is set as 280KPa.

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Periodical:

Advanced Materials Research (Volume 709)

Pages:

365-369

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.709.365

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Online since:

June 2013

Authors:

De Li Li, Jun Hua Xue, Zhen Gang Zhao, Ying Na Li, Tao Xie, Xin Xiong, Chuan Li

Keywords:

Earth Pressure Sensor, Fiber Bragg Grating (FBG), Real-Time On-Line Monitoring, Threshold Value, Tower Foundation

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