27 March 2018 Research on horizontal displacement monitoring method of deep foundation pit based on laser projecting sensing technology
Author Affiliations +
Abstract
A certain level of horizontal displacement will occur during excavation or subsequent construction of deep foundation pit. If the support is improper and the horizontal displacement of the foundation pit is too large, it will cause collapse and even affect the buildings around the foundation pit, which will endanger people's life and property. Therefore, the horizontal displacement monitoring of deep foundation pit becomes more and more important. At present, the electronic total station is often used to monitor the horizontal displacement of the foundation pit, but this monitoring method is expensive, prone to accidental errors, and can not be used for real-time monitoring. Therefore, a method of monitoring the horizontal displacement of deep foundation pit by using laser projection sensing technique is proposed in this paper. The horizontal displacement of the foundation pit is replaced by the displacement of the laser spot emitted by the laser, and the horizontal displacement of the foundation pit can be obtained by identifying the displacement of the laser spot projected on the screen. A series of experiments show that the accuracy of this monitoring method meets the engineering requirements and greatly reduces the cost, which provides a new technology for the displacement monitoring of deep foundation pit.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Peng Liu, Peng Liu, Shulin Xie, Shulin Xie, Lixiao Zhang, Lixiao Zhang, Guangyi Zhou, Guangyi Zhou, Xuefeng Zhao, Xuefeng Zhao, "Research on horizontal displacement monitoring method of deep foundation pit based on laser projecting sensing technology", Proc. SPIE 10599, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XII, 1059928 (27 March 2018); doi: 10.1117/12.2296529; https://doi.org/10.1117/12.2296529
PROCEEDINGS
12 PAGES


SHARE
RELATED CONTENT

Research on range-gated laser active imaging seeker
Proceedings of SPIE (September 18 2013)
Where fewer pixels give you more image
Proceedings of SPIE (February 21 2018)
Draper Laboratory small autonomous aerial vehicle
Proceedings of SPIE (June 25 1997)
Active tracking lasers for precision target stabilization
Proceedings of SPIE (August 20 2003)

Back to Top