Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Optical-based nondestructive testing device for bridge pile foundation
The invention provides an optical-based nondestructive testing device for a bridge pile foundation. The optical-based nondestructive testing device comprises a test counter-force device, an embedded strain sensing device, a jack, an optical signal conversion module, a pile foundation axial strain sensing module, an optical switch module, a field detection end control module and a remote monitoring management control module, wherein the jack is connected with the embedded strain sensing device and the test counter-force device; the field detection end control module is used for calculating internal force generated by axial average strain variation at the depth z of the pile foundation in real time, judging whether the internal force reaches a threshold value or not, and sending an instruction to the optical switch module if the internal force reaches the threshold value; and the field detection end control module is also used for calculating peak reflectivity wavelength and reflected light peak wavelength variation values caused by strain and temperature variation of the bridge pile foundation, and sending the peak reflectivity wavelength and reflected light peak wavelength variation values to the remote monitoring management control module for later supervision and real-time supervision. According to the optical-based nondestructive testing device for the bridge pile foundation, provided by the invention, local strain measurement and local damage detection can be realized by adopting an optical detection means.
本发明提供一种基于光学的桥梁桩基无损检测装置，包括试验反力装置、嵌入式应变传感装置、连接所述嵌入式应变传感装置与试验返力装置的千斤顶、光信号转换模块、桩基轴向应变传感模块、光开关模块、现场检测端控制模块、远程监测管理控制模块；所述现场检测端控制模块用于实时计算桩基深度z处轴向平均应变变化量所产生的内力，并判断是否达到阈值，若达到阈值则向所述光开关模块发出指令；并计算桥梁桩基的应变和温度变化所带来的峰值反射率波长和反射光峰值波长变化值，发送至远程监测管理控制模块，用于后期监管和实时监管。本发明提供的基于光学的桥梁桩基无损检测装置，由于采用了光学检测手段，能够实现局部应变测量和局部损伤检测。
Optical-based nondestructive testing device for bridge pile foundation
The invention provides an optical-based nondestructive testing device for a bridge pile foundation. The optical-based nondestructive testing device comprises a test counter-force device, an embedded strain sensing device, a jack, an optical signal conversion module, a pile foundation axial strain sensing module, an optical switch module, a field detection end control module and a remote monitoring management control module, wherein the jack is connected with the embedded strain sensing device and the test counter-force device; the field detection end control module is used for calculating internal force generated by axial average strain variation at the depth z of the pile foundation in real time, judging whether the internal force reaches a threshold value or not, and sending an instruction to the optical switch module if the internal force reaches the threshold value; and the field detection end control module is also used for calculating peak reflectivity wavelength and reflected light peak wavelength variation values caused by strain and temperature variation of the bridge pile foundation, and sending the peak reflectivity wavelength and reflected light peak wavelength variation values to the remote monitoring management control module for later supervision and real-time supervision. According to the optical-based nondestructive testing device for the bridge pile foundation, provided by the invention, local strain measurement and local damage detection can be realized by adopting an optical detection means.
本发明提供一种基于光学的桥梁桩基无损检测装置，包括试验反力装置、嵌入式应变传感装置、连接所述嵌入式应变传感装置与试验返力装置的千斤顶、光信号转换模块、桩基轴向应变传感模块、光开关模块、现场检测端控制模块、远程监测管理控制模块；所述现场检测端控制模块用于实时计算桩基深度z处轴向平均应变变化量所产生的内力，并判断是否达到阈值，若达到阈值则向所述光开关模块发出指令；并计算桥梁桩基的应变和温度变化所带来的峰值反射率波长和反射光峰值波长变化值，发送至远程监测管理控制模块，用于后期监管和实时监管。本发明提供的基于光学的桥梁桩基无损检测装置，由于采用了光学检测手段，能够实现局部应变测量和局部损伤检测。
Optical-based nondestructive testing device for bridge pile foundation
基于光学的桥梁桩基无损检测装置
LIU CHANGQING (Autor:in) / PANG HONGXIAN (Autor:in) / WANG KUN (Autor:in) / ZHANG LIMIN (Autor:in) / FANG YEHUI (Autor:in)
29.06.2021
Patent
Elektronische Ressource
Chinesisch
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