Measuring method for internal settlement of high rockfill dams based on pipeline measuring robot

YIN Yu; LI Qing-quan; YU Jian-wei; ZHANG De-jin; CHENG Xiang; CHEN Zhi-peng

doi:10.11779/CJGE202210022

Volume 44 Issue 10

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Chinese Journal of Geotechnical Engineering > 2022 > 44(10): 1951-1958. > DOI: 10.11779/CJGE202210022

YIN Yu, LI Qing-quan, YU Jian-wei, ZHANG De-jin, CHENG Xiang, CHEN Zhi-peng. Measuring method for internal settlement of high rockfill dams based on pipeline measuring robot[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(10): 1951-1958. DOI: 10.11779/CJGE202210022

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Measuring method for internal settlement of high rockfill dams based on pipeline measuring robot

YIN Yu^{1, 2,},
LI Qing-quan^{1, 2},
YU Jian-wei¹,
ZHANG De-jin^{1, 3},
CHENG Xiang¹,
CHEN Zhi-peng^{1, 3, ,}

1.
Guangdong Key Laboratory of Urban Informatics, Shenzhen 518060, China
2.
College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China
3.
School of Architecture & Urban Planning, Shenzhen University, Shenzhen 518060, China

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Received Date: August 26, 2021
Available Online: December 11, 2022

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Abstract

Abstract

Aiming at the difficulty of the traditional monitoring methods for internal settlement of rock-fill dams to meet the technical requirements for monitoring the internal settlement of high rock-fill dams and the deficiencies in the existing monitoring methods, a method is proposed for measuring the internal settlement of high rock-fill dams based on the pipeline measuring robot. Firstly, the principle for measuring the internal settlement of the high rockfill dams based on the pipeline measuring robot and the composition and deployment method of the monitoring system are introduced. Then, the accuracy of the elevation measurement of the pipeline robot is verified through the model tests, and finally, it is successfully applied to Lianghekou Dam. The elevation check results show that the accuracy of the elevation measurement using the pipeline measuring robot has reached 0.32 mm. A period of pipeline settlement monitoring data with the same starting and ending time as the hydraulic overflow settlement gauge is selected for comparison. Among them, the repeated accuracy of pipeline elevation measurement of the starting and ending time reaches 15 ppm and 10 ppm, respectively. The comparison shows that the monitoring results of the two monitoring systems are in agreement, and they are strongly correlated. Engineering applications show that the measureing method for the internal settlement of high rockfill dams based on the pipeline measuring robot can be effectively used to monitor the internal settlement of rockfill dams, and it is a new type of deformation monitoring technology with good application prospects.
- rockfill dam,
- internal deformation,
- pipeline measurement,
- inertial measurement,
- pipeline measuring robot

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References (17)

References

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