Coupling effects of pressed caisson and uplift piles on surface settlement

ZHANG Zhongjie; WANG Xiaoxiang; YU Jian; HUANG Maosong; WANG Haoran

doi:10.11779/CJGE2024S20039

Volume 46 Issue S2

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Chinese Journal of Geotechnical Engineering > 2024 > 46(S2): 119-123. > DOI: 10.11779/CJGE2024S20039

ZHANG Zhongjie, WANG Xiaoxiang, YU Jian, HUANG Maosong, WANG Haoran. Coupling effects of pressed caisson and uplift piles on surface settlement[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(S2): 119-123. DOI: 10.11779/CJGE2024S20039

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Coupling effects of pressed caisson and uplift piles on surface settlement

ZHANG Zhongjie^1,,
WANG Xiaoxiang^{2, 3},
YU Jian^{2, 3, ,},
HUANG Maosong^{2, 3},
WANG Haoran¹

1.
Shanghai Urban Construction Design & Research Institute (Group) Co., Ltd., Shanghai 200125, China
2.
Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
3.
Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China

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Received Date: June 21, 2021

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Abstract

Abstract

Constructing underground railway stations using the pressed continuous caisson group is a new type of prefabricated assembly construction mode. However, compared to the traditional open-pit excavation method of station construction, there is currently a lack of research on the environmental impact of the caisson pushing process. Therefore, taking the actual projects as a background, this study conducted numerical simulations and combined existing measured data to fit subsidence profile curves. The influences of the presence or absence of the reactive piles outside the caissons on the surface settlement profile are investigated. Further investigations are done on the regulation effects of pile spacing on the surface settlement. Based on the principle of the equivalent anti-pulling bearing capacity, the influences of pile spacing and pile diameter on the settlement of the surrounding soil are also explored. Consequently, a modified normalization curve for the settlement profile of the soil outside and between piles is formed, and it may provide reference support for the implementation of the underground stations with pressed continuous caisson group in densely populated urban centers.
- pressed caisson,
- surface settlement,
- uplift pile,
- numerical simulation

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[1]	徐鹏飞, 李耀良, 徐伟. 压入式沉井施工对环境影响的现场监测研究[J]. 岩土力学, 2014, 35(4): 1084-1094. XU Pengfei, LI Yaoliang, XU Wei. Field measurement and analysis of influence of jacked open caisson construction on environments[J]. Rock and Soil Mechanics, 2014, 35(4): 1084-1094. (in Chinese)
[2]	邓友生, 万昌中, 闫卫玲, 等. 大型圆形沉井结构应力及其周边沉降计算[J]. 岩土力学, 2015, 36(2): 502-508. DENG Yousheng, WAN Changzhong, YAN Weiling, et al. Stress of large cylindrical caisson structure and its adjacent settlement[J]. Rock and Soil Mechanics, 2015, 36(2): 502-508. (in Chinese)
[3]	罗实瀚, 徐伟. 地锚式沉井压入施工阶段对环境影响监测成果分析[J]. 建筑结构, 2016, 46(8): 100-105. LUO Shihan, XU Wei. Analysis of monitoring results of environmental impact on anchor caisson in pressing construction phase[J]. Building Structure, 2016, 46(8): 100-105. (in Chinese)
[4]	地下工程预制装配技术标准(轨道交通工程[S]. 上海: 同济大学出版社, 2024. Technical Code for Prefabricated Assembly of Underground Engineering (Rail Transit Engineering)[S]. Shanghai: Tongji University Press, 2024. (in Chinese)
[5]	American Petroleum Institute. Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platform-Load and Resistance Factor Design[S]. Washington D C, 2010.

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