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Study on Supporting Structure Design for Deep Foundation Pit in Water-rich Stratum
The construction and development of underground space are of great strategic significance for optimizing urban spatial layout and comprehensively utilizing land resources. With the rapid development of underground ring roads and public space, the construction of large-scale deep foundation pits in water-rich strata becomes increasingly tricky. How to analyze the stability and optimize the design of foundation pit supporting structures is a technical problem that has been tackled by scholars in recent years.Based on an underground space comprehensive development project, this paper will determine that the enclosure structure composed of 30m ultra-long borehole filling column, concrete support and steel pipe support has good applicability to the project through a comprehensive comparison of the existing foundation pit support technology.Meanwhile, the internal force, deformation, stability, and overturning resistance of the enclosure structure achieved by the supporting scheme under different construction conditions were checked and analyzed in detail. Then, the calculation results were comprehensively compared with the deformation control standards of supporting structures. Taking pile A as an example, the sliding safety factor, anti-overturning and anti-uplift stability coefficients when excavated to 0 .8m are 3.38, 1.87 and 3.33, respectively, which meet the theoretical value requirements.The calculation results show that the supporting structure of the project has good stability, which has a certain reference significance for the optimal design of supporting schemes in similar foundation pit projects.
Study on Supporting Structure Design for Deep Foundation Pit in Water-rich Stratum
The construction and development of underground space are of great strategic significance for optimizing urban spatial layout and comprehensively utilizing land resources. With the rapid development of underground ring roads and public space, the construction of large-scale deep foundation pits in water-rich strata becomes increasingly tricky. How to analyze the stability and optimize the design of foundation pit supporting structures is a technical problem that has been tackled by scholars in recent years.Based on an underground space comprehensive development project, this paper will determine that the enclosure structure composed of 30m ultra-long borehole filling column, concrete support and steel pipe support has good applicability to the project through a comprehensive comparison of the existing foundation pit support technology.Meanwhile, the internal force, deformation, stability, and overturning resistance of the enclosure structure achieved by the supporting scheme under different construction conditions were checked and analyzed in detail. Then, the calculation results were comprehensively compared with the deformation control standards of supporting structures. Taking pile A as an example, the sliding safety factor, anti-overturning and anti-uplift stability coefficients when excavated to 0 .8m are 3.38, 1.87 and 3.33, respectively, which meet the theoretical value requirements.The calculation results show that the supporting structure of the project has good stability, which has a certain reference significance for the optimal design of supporting schemes in similar foundation pit projects.
Study on Supporting Structure Design for Deep Foundation Pit in Water-rich Stratum
Advances in Engineering res
Bilgin, Hüseyin (editor) / Wen, Jiwei (editor) / Rahhal, Muhsin Elie (editor) / Qin, Xiaofeng (author) / Zhang, Miao (author) / Huang, Ao (author) / Liu, Wen (author) / Wang, Shangang (author)
International Conference on Civil Engineering, Environment Resources and Energy Materials ; 2023 ; Xiamen, China
2023-12-14
15 pages
Article/Chapter (Book)
Electronic Resource
English
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