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Standard penetration dynamic exploration test data automatic acquisition method
The invention discloses a standard penetration dynamic exploration test data automatic acquisition method. According to a traditional standard penetration dynamic exploration test method, test data are obtained manually, time and labor are wasted, and the measurement error is large. A data collector and a vibration detector are mounted at the bottom of a hammer pad to collect vibration waves in a standard penetration dynamic exploration test, a vibration sensor collects vibration signals, and a triaxial accelerometer and a strapdown inertial navigation module collect three-dimensional acceleration when the hammer pad moves; the data processing module obtains the length of the probe rod by multiplying the transmission speed of the seismic waves in the drill rod by 1/2 of the time from the beginning of jarring to the first time of receiving the echoes; the number of electric signals generated by the vibration sensor is accumulated to obtain the hammering number; and carrying out secondary integral operation on the three-dimensional acceleration when the hammer pad moves, and accumulating to calculate the penetration in the test process. The current situation of manual recording of test data can be improved, and a foundation is laid for automation of the original test of geotechnical engineering investigation.
本发明公开了一种标贯动探试验数据自动采集方法。传统标贯动探试验方法是通过人工获取试验数据，费时费力且测量误差大。本发明在锤垫底部安装数据采集器，震动检波器对标贯动探试验中的震波进行采集，震动传感器采集震动信号，三轴加速度计和捷联惯导模块采集锤垫运动时的三维加速度；数据处理模块取震波在钻杆内的传输速度和从震击开始到首次接收到回波的时间的1/2乘积得到探杆长度；将震动传感器产生的电信号个数累加即得锤击数；将锤垫运动时的三维加速度进行二次积分运算，累加计算出试验过程中的贯入度。本发明可改善试验数据人工记录的现状，为岩土工程勘察原为试验实现自动化奠定基础。
Standard penetration dynamic exploration test data automatic acquisition method
The invention discloses a standard penetration dynamic exploration test data automatic acquisition method. According to a traditional standard penetration dynamic exploration test method, test data are obtained manually, time and labor are wasted, and the measurement error is large. A data collector and a vibration detector are mounted at the bottom of a hammer pad to collect vibration waves in a standard penetration dynamic exploration test, a vibration sensor collects vibration signals, and a triaxial accelerometer and a strapdown inertial navigation module collect three-dimensional acceleration when the hammer pad moves; the data processing module obtains the length of the probe rod by multiplying the transmission speed of the seismic waves in the drill rod by 1/2 of the time from the beginning of jarring to the first time of receiving the echoes; the number of electric signals generated by the vibration sensor is accumulated to obtain the hammering number; and carrying out secondary integral operation on the three-dimensional acceleration when the hammer pad moves, and accumulating to calculate the penetration in the test process. The current situation of manual recording of test data can be improved, and a foundation is laid for automation of the original test of geotechnical engineering investigation.
本发明公开了一种标贯动探试验数据自动采集方法。传统标贯动探试验方法是通过人工获取试验数据，费时费力且测量误差大。本发明在锤垫底部安装数据采集器，震动检波器对标贯动探试验中的震波进行采集，震动传感器采集震动信号，三轴加速度计和捷联惯导模块采集锤垫运动时的三维加速度；数据处理模块取震波在钻杆内的传输速度和从震击开始到首次接收到回波的时间的1/2乘积得到探杆长度；将震动传感器产生的电信号个数累加即得锤击数；将锤垫运动时的三维加速度进行二次积分运算，累加计算出试验过程中的贯入度。本发明可改善试验数据人工记录的现状，为岩土工程勘察原为试验实现自动化奠定基础。
Standard penetration dynamic exploration test data automatic acquisition method
一种标贯动探试验数据自动采集方法
LI JUNHONG (author) / ZHANG JUCHUAN (author) / MENG XIANGLIAN (author) / FENG WEI (author) / ZHOU FUJUN (author) / HUANG YONG (author) / FAN CHUNLIN (author) / LIU MAO (author) / ZHANG LIGUO (author) / LIU WEI (author)
2022-07-29
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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