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A platform for research: civil engineering, architecture and urbanism
Roadbed settlement automatic monitoring system and method based on optical fiber sensing technology
The invention relates to the technical field of roadbed monitoring, in particular to an automatic roadbed settlement monitoring system and method based on an optical fiber sensing technology, and the system comprises an optical fiber grating demodulator, a plurality of strain optical cables which are longitudinally arranged along a roadbed, and a plurality of transverse deformation correction units. The strain optical cable is arranged between the foundation bed bottom layer and the foundation bed surface layer and is connected with the fiber bragg grating demodulator; and the plurality of transverse deformation correction units are arranged at intervals along the longitudinal direction of the roadbed and are used for monitoring the actual deformation of each strain optical cable on the cross section. The strain optical cable is longitudinally arranged along the roadbed, so that long-distance continuous measurement and monitoring can be realized; meanwhile, a plurality of transverse deformation correction units are arranged along the longitudinal direction of the roadbed at intervals, and the actual deformation at the strain optical cables of a plurality of cross sections is monitored, so that the monitoring deformation of the strain optical cables in the whole section is corrected, and the long-distance continuous monitoring precision of the optical fibers is improved.
本发明涉及路基监测技术领域，具体涉及一种基于光纤感测技术的路基沉降自动化监测系统及方法，包括光纤光栅解调仪、沿路基纵向布置的若干应变光缆以及若干横向变形修正单元，所述应变光缆设置于基床底层与基床表层之间且与所述光纤光栅解调仪连接；若干所述横向变形修正单元沿路基纵向间隔布置，用于监测所在横断面上各所述应变光缆处的实际变形量。本发明将应变光缆沿路基纵向布置，可以实现长距离连续测量和监控；同时沿路基纵向间隔布置若干横向变形修正单元，通过监测多个横断面应变光缆处的实际变形量，对整个区间的应变光缆监测变形量进行修正，提高光纤长距离连续监测的监测精度。
Roadbed settlement automatic monitoring system and method based on optical fiber sensing technology
The invention relates to the technical field of roadbed monitoring, in particular to an automatic roadbed settlement monitoring system and method based on an optical fiber sensing technology, and the system comprises an optical fiber grating demodulator, a plurality of strain optical cables which are longitudinally arranged along a roadbed, and a plurality of transverse deformation correction units. The strain optical cable is arranged between the foundation bed bottom layer and the foundation bed surface layer and is connected with the fiber bragg grating demodulator; and the plurality of transverse deformation correction units are arranged at intervals along the longitudinal direction of the roadbed and are used for monitoring the actual deformation of each strain optical cable on the cross section. The strain optical cable is longitudinally arranged along the roadbed, so that long-distance continuous measurement and monitoring can be realized; meanwhile, a plurality of transverse deformation correction units are arranged along the longitudinal direction of the roadbed at intervals, and the actual deformation at the strain optical cables of a plurality of cross sections is monitored, so that the monitoring deformation of the strain optical cables in the whole section is corrected, and the long-distance continuous monitoring precision of the optical fibers is improved.
本发明涉及路基监测技术领域，具体涉及一种基于光纤感测技术的路基沉降自动化监测系统及方法，包括光纤光栅解调仪、沿路基纵向布置的若干应变光缆以及若干横向变形修正单元，所述应变光缆设置于基床底层与基床表层之间且与所述光纤光栅解调仪连接；若干所述横向变形修正单元沿路基纵向间隔布置，用于监测所在横断面上各所述应变光缆处的实际变形量。本发明将应变光缆沿路基纵向布置，可以实现长距离连续测量和监控；同时沿路基纵向间隔布置若干横向变形修正单元，通过监测多个横断面应变光缆处的实际变形量，对整个区间的应变光缆监测变形量进行修正，提高光纤长距离连续监测的监测精度。
Roadbed settlement automatic monitoring system and method based on optical fiber sensing technology
一种基于光纤感测技术的路基沉降自动化监测系统及方法
WANG XIANG (author) / ZHOU GE (author) / ZHOU GENTAN (author) / LI SHILIANG (author) / WANG HUAN (author) / XIAO FAN (author) / WANG YAWEI (author) / KANG XINGPEI (author)
2023-07-04
Patent
Electronic Resource
Chinese
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