Development of a Wireless Dynamic Test Device for Low Strain Integrity Testing and Parallel Seismic Testing of Foundation Piles

2018 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

材料科学;无线电电子学;计算机科学

Zhang, Peng^1 ; Wang, Kuihua^1

Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Zhejiang Province, Hangzhou, China^1

关键词: Controlling computers;    Dynamic test devices;    Integrity testing;    Parallel seismic;    Peripheral circuitry;    Simultaneous Sampling;    Transceiver modules;    Trigger threshold;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/439/5/052037/pdf
DOI  :  10.1088/1757-899X/439/5/052037

来源: IOP

【 摘 要 】

The low strain integrity testing and the parallel seismic testing of foundation piles usually need dedicated instruments, respectively. The development of a wireless dynamic testing device based on Wi-Fi for foundation piles is introduced, which consists of a microcontroller with ADCs, a static RAM, a Wi-Fi transceiver module and other peripheral circuitries. The developed device features 16-bit dual-channel simultaneous sampling, variable trigger threshold and variable number of pretrigger samples, and it satisfies the requirements of both the low strain integrity testing and the parallel seismic testing of piles. A controlling computer should be present with the dynamic test device to conduct tests. Field tests were carried out on concrete bored piles with both test methods, and the test results have shown the functionality and reliability of the wireless dynamic test device.