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Piezoelectric film flexible sensing-based pore pressure static penetrometer and CPTU system
The invention discloses a piezoelectric film flexible sensing-based pore pressure static penetrometer, which comprises a probe, a detection rod and a sensor detection device, the probe is arranged at the lower part of the detection rod, the sensor detection device comprises a piezoelectric conical tip resistance sensor, a piezoelectric side friction resistance sensor, a piezoelectric pore pressure sensor and a piezoelectric inclinometry sensor, and the piezoelectric conical tip resistance sensor is connected with the piezoelectric side friction resistance sensor. A cavity is formed in the detection rod, and the piezoelectric pore pressure sensor and the piezoelectric inclinometry sensor are fixed in the cavity; the piezoelectric conical tip resistance sensors are distributed on the outer ring face of the first deformation ring column, and the piezoelectric side friction resistance sensors are distributed on the outer ring face of the second conical ring. According to the invention, a detection system based on the CPTU probe is unified by a piezoelectric film flexible sensing technology, the full-coverage distributed test of the conical tip resistance and the side friction resistance of the CPTU probe is realized, and the conical tip resistance and the side friction resistance are obtained according to the average dynamic stress and strain of multiple points, so that the measurement error is greatly reduced.
本发明公开了基于压电薄膜柔性感知的孔压静力触探仪，包括探头和探测杆，探头设置在探测杆的下部，还包括传感器检测装置，传感器检测装置包括压电锥尖阻力传感器、压电侧摩阻力传感器、压电孔压传感器和压电测斜传感器，探测杆内部开设空腔，压电孔压传感器和压电测斜传感器固定在空腔内；压电锥尖阻力传感器分布在第一变形环柱的外环面，压电侧摩阻力传感器分布在第二锥环的外环面。本发明以一种压电薄膜柔性感知技术统一基于CPTU探头的检测系统，并实现了CPTU探头锥尖阻力和侧摩阻力的全覆盖分布式测试，由多点平均动应力和应变得出的锥尖阻力和侧摩阻力，大大降低测量误差。
Piezoelectric film flexible sensing-based pore pressure static penetrometer and CPTU system
The invention discloses a piezoelectric film flexible sensing-based pore pressure static penetrometer, which comprises a probe, a detection rod and a sensor detection device, the probe is arranged at the lower part of the detection rod, the sensor detection device comprises a piezoelectric conical tip resistance sensor, a piezoelectric side friction resistance sensor, a piezoelectric pore pressure sensor and a piezoelectric inclinometry sensor, and the piezoelectric conical tip resistance sensor is connected with the piezoelectric side friction resistance sensor. A cavity is formed in the detection rod, and the piezoelectric pore pressure sensor and the piezoelectric inclinometry sensor are fixed in the cavity; the piezoelectric conical tip resistance sensors are distributed on the outer ring face of the first deformation ring column, and the piezoelectric side friction resistance sensors are distributed on the outer ring face of the second conical ring. According to the invention, a detection system based on the CPTU probe is unified by a piezoelectric film flexible sensing technology, the full-coverage distributed test of the conical tip resistance and the side friction resistance of the CPTU probe is realized, and the conical tip resistance and the side friction resistance are obtained according to the average dynamic stress and strain of multiple points, so that the measurement error is greatly reduced.
本发明公开了基于压电薄膜柔性感知的孔压静力触探仪，包括探头和探测杆，探头设置在探测杆的下部，还包括传感器检测装置，传感器检测装置包括压电锥尖阻力传感器、压电侧摩阻力传感器、压电孔压传感器和压电测斜传感器，探测杆内部开设空腔，压电孔压传感器和压电测斜传感器固定在空腔内；压电锥尖阻力传感器分布在第一变形环柱的外环面，压电侧摩阻力传感器分布在第二锥环的外环面。本发明以一种压电薄膜柔性感知技术统一基于CPTU探头的检测系统，并实现了CPTU探头锥尖阻力和侧摩阻力的全覆盖分布式测试，由多点平均动应力和应变得出的锥尖阻力和侧摩阻力，大大降低测量误差。
Piezoelectric film flexible sensing-based pore pressure static penetrometer and CPTU system
基于压电薄膜柔性感知的孔压静力触探仪及CPTU系统
LIU ZHIMING (author) / CAI GUOJUN (author) / WANG JUN (author) / KUANG KEVIN SH-CHIANG (author) / HE HUAN (author) / DUAN WEI (author) / LIU LULU (author) / LIU XIAOYAN (author) / CHEN RUIFENG (author) / LIU XUENING (author)
2024-08-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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| Wiley | 2015
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Cone Penetrometer with Pore Pressure Measurement
| NTIS | 1983