Author(s)

Xin Lei ¹, Zhiyuan Chu ¹, Wenlong Li ¹, Haobin Wu ¹, Xiaolong Li ¹

Affiliation(s)

¹ China Construction Second Engineering Bureau Ltd., Dongguan, Guangdong, 25300, China

Corresponding Author

Xin Lei

ABSTRACT

The project of Cowin City Plaza is adjacent to the existing Metro Line 2, and the basement floor is connected to the existing Metro Line 2 station hall floor, and the supporting structures on both sides of the connection port need to be connected with the original subway support structure; However, in the early stage of design, due to the lack of completion drawing data of the subway structure, some parts may be inaccurate, which increases the construction difficulty of the handover location, in order to ensure the protection of the subway structure during construction. To prevent disturbance of the existing subway structure due to the construction of the deep foundation pit, the project studies the foundation pit support construction at the subway junction location, conducts field surveys, communicates with the design in advance, optimizes the support structure at the connection port, and adjusts the original pile to high-pressure rotary blast pile to avoid greater disturbance to the existing subway structure during large-scale mechanical construction.

KEYWORDS

Subway connectivity, support construction, subway disturbances, deep foundation pit construction

CITE THIS PAPER

Xin Lei, Zhiyuan Chu, Wenlong Li, Haobin Wu, Xiaolong Li, Construction Technology of Deep Foundation Pit around Existing Subway Project. Journal of Civil Engineering and Urban Planning (2023) Vol. 5: 40-47. DOI: http://dx.doi.org/10.23977/jceup.2023.050806.

REFERENCES

[1] Xiao Yu, Dong Yanzhao. Numerical Simulation Study on Construction Process of Foundation Pit Project Adjacent to Existing Urban Rail Transit Structure. Value Engineering, 2022, 41(14):3.
[2] Yan Jingya. Design and Construction of Deep Foundation Pit near Metro Tunnel. Chinese Journal of Geotechnical Engineering, 2010(S1):4.
[3] Cui Xuezhong. Design of deep foundation pit adjacent to the operating subway line. Protective Engineering, 2019
[4] Xue Zhisong. Construction of Large-Scale Deep Foundation Pit Adjacent to Subway. Building construction , 2022(44)5.
[5] Wang Wenming. Application of high pressure jet grouting pile in soft foundation treatment of road and bridge. China high-tech enterprises, 2012(17):3.
[6] Liang Zhixin. Talking about the key points of deep foundation pit enclosure construction near subway. Architectural Engineering Technology and Design, 2018.
[7] Yan Zhenghong. Research and application of earth work staggered excavation in adjacent deep foundation pits. Building construction, 2022.
[8] Wu Xiaohui. Analysis of external engineering Safety Monitoring and Management in urban rail transit control and protection. Protective Engineering, 2018
[9] Qin Zhenggang. Discussion on planning and construction control of adjacent plots of urban rail transit. Architectural Engineering Technology and Design, 2015, 000(015):32,188.
[10] Li Jichao; Zhu Junpu; Xing Houbing; Qiu Yunjun; Zheng Shuang; Wang Xiangqiu. Back Analysis of Seepage Parameters of Deep Foundation Pit Engineering of Subway Station under Complex Geological Condition, Guangzhou Architecture, 2021.

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