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A platform for research: civil engineering, architecture and urbanism
Pile foundation damage inspection detector based on piezoelectric effect and detection and analysis system
The invention belongs to the technical field of detection and damage inspection of structures such as pile foundations in the civil engineering field, and particularly relates to a detector and a detection analysis system for damage inspection of a pile foundation based on a piezoelectric effect. The transverse pulse stress wave emitter and the piezoelectric ceramic detector are uniformly distributed on the outer surface of the pile foundation in a grid shape; a transverse pulse stress wave emitter and a piezoelectric ceramic detector surround the periphery of a pile foundation to form a latticed array system, the output end of the piezoelectric ceramic detector is connected with a signal processor, and the output end of the signal processor is connected with an analysis system. The change of the same stress wave in the conduction process is detected at different positions, electric signals can be processed, and a three-dimensional damage model can be established. By evaluating and analyzing the damage model, accurate detection of the pile foundation can be achieved.
本发明属于土木工程领域内对桩基础等结构的检测、验伤技术领域，具体为基于压电效应对桩基验伤的检测器及检测分析系统，包括：横向脉冲应力波发射器、压电陶瓷检测器，所述横向脉冲应力波发射器、压电陶瓷检测器呈网格状均匀分布在桩基础的外表面上；将横向脉冲应力波发射器、压电陶瓷检测器围绕在桩基础四周组成网格状的阵列系统，所述压电陶瓷检测器的输出端与信号处理器建立连接，所述信号处理器的输出端与分析系统建立连接。在不同位置检测同一束应力波传导过程中变化，可将电信号进行处理并建立出三维损伤模型。通过对损伤模型进行评估、分析，可以做到对桩基础的精确检测。
Pile foundation damage inspection detector based on piezoelectric effect and detection and analysis system
The invention belongs to the technical field of detection and damage inspection of structures such as pile foundations in the civil engineering field, and particularly relates to a detector and a detection analysis system for damage inspection of a pile foundation based on a piezoelectric effect. The transverse pulse stress wave emitter and the piezoelectric ceramic detector are uniformly distributed on the outer surface of the pile foundation in a grid shape; a transverse pulse stress wave emitter and a piezoelectric ceramic detector surround the periphery of a pile foundation to form a latticed array system, the output end of the piezoelectric ceramic detector is connected with a signal processor, and the output end of the signal processor is connected with an analysis system. The change of the same stress wave in the conduction process is detected at different positions, electric signals can be processed, and a three-dimensional damage model can be established. By evaluating and analyzing the damage model, accurate detection of the pile foundation can be achieved.
本发明属于土木工程领域内对桩基础等结构的检测、验伤技术领域，具体为基于压电效应对桩基验伤的检测器及检测分析系统，包括：横向脉冲应力波发射器、压电陶瓷检测器，所述横向脉冲应力波发射器、压电陶瓷检测器呈网格状均匀分布在桩基础的外表面上；将横向脉冲应力波发射器、压电陶瓷检测器围绕在桩基础四周组成网格状的阵列系统，所述压电陶瓷检测器的输出端与信号处理器建立连接，所述信号处理器的输出端与分析系统建立连接。在不同位置检测同一束应力波传导过程中变化，可将电信号进行处理并建立出三维损伤模型。通过对损伤模型进行评估、分析，可以做到对桩基础的精确检测。
Pile foundation damage inspection detector based on piezoelectric effect and detection and analysis system
基于压电效应对桩基验伤的检测器及检测分析系统
DENG XIN (author) / TANG WEIJUN (author) / ZHANG WEIRONG (author) / ZHANG WENYONG (author) / WANG CHAOLIN (author)
2024-03-05
Patent
Electronic Resource
Chinese