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Article

In-Situ Monitoring and Numerical Analysis of Deformation in Deep Foundation Pit Support: A Case Study in Taizhou

by
Junding Liu
1,
Jiangnan Ye
2,
Xinyu Shen
1,
Jing Yu
1,
Tao Wu
3,
Ji Yuan
1,
Qian Ye
1,*,
Shifang Wang
1,* and
Haijie He
1,4,*
1
College of Civil and Architectural Engineering, Taizhou University, Taizhou 318000, China
2
Taizhou Construction Engineering Group Co., Ltd., Taizhou 318000, China
3
College of Civil Engineering and Architecture, Jiangsu University of Science and Technology, Zhenjiang 212000, China
4
College of Civil and Architectural Engineering, Zhejiang University, Hangzhou 310000, China
*
Authors to whom correspondence should be addressed.
Appl. Sci. 2023, 13(10), 6288; https://doi.org/10.3390/app13106288
Submission received: 20 April 2023 / Revised: 13 May 2023 / Accepted: 17 May 2023 / Published: 21 May 2023
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Abstract

With the increasing prevalence of deep foundation pit projects in modern urban construction, the deformation control of the associated support structures is crucial to ensuring construction safety. Despite the growing importance of this issue, research on deep foundation pit excavation in soft soil areas near the sea is limited. This study investigates the deformation characteristics and impact of a geometrically complex deep foundation pit project in Taizhou, utilizing both long-term in-situ monitoring and numerical simulation. The results of this study indicated that the maximum horizontal displacement of the foundation pit was approximately within the depth range of 5 m, with a value of 34.5 mm. The maximum settlement of both the top of the pit and the surrounding structures were determined to be less than 25 mm, confirming the safety of the excavation process. The excavation process of the foundation pit was simulated and analyzed by the Midas GTS finite element software. The results showed a similar variation pattern to the measured results, but the numerical results were generally lower than the measured values. This study provides valuable insights into the deformation characteristics of deep foundation pit excavation in soft soil areas and serves as a reference for future projects in similar conditions.
Keywords: foundation pit; deformation law; numerical simulation; construction monitoring foundation pit; deformation law; numerical simulation; construction monitoring

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MDPI and ACS Style

Liu, J.; Ye, J.; Shen, X.; Yu, J.; Wu, T.; Yuan, J.; Ye, Q.; Wang, S.; He, H. In-Situ Monitoring and Numerical Analysis of Deformation in Deep Foundation Pit Support: A Case Study in Taizhou. Appl. Sci. 2023, 13, 6288. https://doi.org/10.3390/app13106288

AMA Style

Liu J, Ye J, Shen X, Yu J, Wu T, Yuan J, Ye Q, Wang S, He H. In-Situ Monitoring and Numerical Analysis of Deformation in Deep Foundation Pit Support: A Case Study in Taizhou. Applied Sciences. 2023; 13(10):6288. https://doi.org/10.3390/app13106288

Chicago/Turabian Style

Liu, Junding, Jiangnan Ye, Xinyu Shen, Jing Yu, Tao Wu, Ji Yuan, Qian Ye, Shifang Wang, and Haijie He. 2023. "In-Situ Monitoring and Numerical Analysis of Deformation in Deep Foundation Pit Support: A Case Study in Taizhou" Applied Sciences 13, no. 10: 6288. https://doi.org/10.3390/app13106288

APA Style

Liu, J., Ye, J., Shen, X., Yu, J., Wu, T., Yuan, J., Ye, Q., Wang, S., & He, H. (2023). In-Situ Monitoring and Numerical Analysis of Deformation in Deep Foundation Pit Support: A Case Study in Taizhou. Applied Sciences, 13(10), 6288. https://doi.org/10.3390/app13106288

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