Safety Monitoring and Stability of Building Foundation Pit Based on Fiber Bragg Grating Sensor
Authors: 
Weihao Liu, Gaofeng Ren, Fucheng Wang, Qiguang Duan, Qingfeng Liu, Zhongchun HuAuthors Info & Claims
Pages 1529 - 1537
Abstract
Numerical simulation and field monitoring were carried out to study the stability of foundation pit and adjacent historical run during excavation. A foundation pit in the southern new city of Nanjing was used as the research background. The whole process of foundation pit excavation was simulated by MIDAS numerical simulation software. According to the results of numerical simulation, the monitoring scheme of foundation pit and runway is designed by using FBG differential pressure sensor and FBG inclination sensor. The monitoring results show that the surface settlement value of the foundation pit and the horizontal displacement value of the soil are both within the safe range, and the influence of foundation pit excavation on historical runway is within 10m. The surface settlement gradually increases the increase of excavation depth, and the maximum settlement is 19mm, less than the design limit of 30mm. The horizontal displacement of the foundation pit soil is large in the middle and small at the two ends. The maximum horizontal displacement of the soil in the monitoring section is 6.02mm, less than the design limit of 15mm and the stability of the foundation pit is good. The field measurement results are similar to the numerical simulation results, and it is feasible to use numerical simulation methods to guide the design of construction and monitoring schemes.
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Published In
October 2021
3136 pages
ISBN:9781450385046
DOI:10.1145/3495018
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Association for Computing Machinery
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Publication History
Published: 14 March 2022
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- the key research and development program of Shandong Province in 2019(2019JZZY020314)
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AIAM2021
AIAM2021: 2021 3rd International Conference on Artificial Intelligence and Advanced Manufacture
October 23 - 25, 2021
Manchester, United Kingdom
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Overall Acceptance Rate 100 of 285 submissions, 35%
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