KEY TECHNOLOGY OF SUPER-LARGE DIAMETER SHIELD PILE FOUNDATION REPLACEMENT CONSTRUCTION
DOI:
https://doi.org/10.14311/CEJ.2025.02.0018Keywords:
Super-large diameter shield tunnel, Pile foundation underpinning, Construction monitoring, Monitoring and analysisAbstract
This paper takes Guangzhou Haizhu Wan shield tunnel project as the background to study the key technology of large-span pile foundation replacement construction under the condition of super-large diameter shield. Research on key technology of large span pile foundation replacement construction under super-large diameter shield conditions was carried out. Formation of spanning 20.8 m large-span buttress structure with buttress piles, double buttress beams and bearing platforms, active buttressing, and truncation of existing pile foundations construction methods. Research focused on the active buttressing phase, which directly affects the deformation of the superstructure. At the same time, the existing building settlement, tilt and stress-strain of the joist were monitored during the joist construction. It shows that the maximum settlement value is -6.1 mm, the overall uneven settlement does not occur, and the monitoring results do not exceed the warning value. Monitoring results show that the large-span prestressed double-beam buttress pile foundation can effectively control the settlement of the superstructure, and have good construction effect.
Downloads
References
Xia H, Du G, Cai J, et al. Comparison between bearing characteristics of pervious concrete pile composite foundations with different replacement ratios[J]. Geohazard Mechanics, 2023, 1(3): 255-261.
Yang Q, Li Z, Li L J, et al. Comprehensive Experimental Investigation of Improved Clay Ground by Sand Compaction Pile Varying from Low to High Area Replacement Ratios[J]. International Journal of Geomechanics, 2023, 23(9): 04023155.
Yan L, Gou X, Guo Z, et al. Experimental and numerical investigation on pile foundation underpinning structure system in urban overpass [J]. Materials, 2023, 16(19): 6576.
Randolph M F. Science and empiricism in pile foundation design [J]. Géotechnique, 2003, 53(10): 847-875.
Cheng X, Chen W, Jing W, et al. Influence of area replacement ratio on settlement and stability of oil storage tank composite foundation treated with compaction piles [J]. Electronic Journal of Geotechnical Engineering, 2015, 20(11): 4665-4678.
Polańska B, Rainer J. Rigid inclusion ground improvements as an alternative to pile foundation[C]//IOP Conference Series: Materials Science and Engineering. IOP Publishing, 2020, 869(5): 052080.
Zhang M, Zhang X. A field experimental study of composite foundation with CFG pile+ vibro-replacement stone column pile in liquefaction area[C]//2017 2nd International Symposium on Advances in Electrical, Electronics and Computer Engineering (ISAEECE 2017). Atlantis Press, 2017: 75-78.
Zhang C, Liu S, Zhang D, et al. A modified equal-strain solution for consolidation behavior of composite foundation reinforced by precast concrete piles improved with cement-treated soil[J]. Computers and Geotechnics, 2022, 150: 104905.
Kim S, Whang S W, Kim S. Pile foundation design through the increased bearing capacity of extended end pile[J]. Journal of Asian Architecture and Building Engineering, 2017, 16(2): 395-402.
Ng C W W, Gunawan A, Shi C, et al. Centrifuge modelling of displacement and replacement energy piles constructed in saturated sand: a comparative study [J]. Géotechnique Letters, 2016, 6(1): 34-38.
Cheng Z, Li S, Wang J. Controlled rocking pile foundation system with replaceable bar fuses for seismic resilience [J]. Earthquake Engineering and Engineering Vibration, 2022, 21(3): 683-696.
Yang Z, Shen F, Yin P, et al. A new approach for improving lateral performance of pile foundations in seasonally frozen regions [J]. Cold Regions Science and Technology, 2023, 207: 103778.
Tian X, Song Z, Huaizheng W, et al. Deformation and mechanical characteristics of tunnel-slope systems with existing anti-slide piles under the replacement structure of pile-wall [J]. Tunnelling and Underground Space Technology, 2024, 153: 105995.
Yang W, Ni P, Chen Z, et al. Consolidation analysis of composite ground improved by granular piles with a high replacement ratio considering overlapping smear zones[J]. Computers and Geotechnics, 2023, 162: 105636.
Zhang C, Zhao Y, Zhang Z, et al. Case study of underground shield tunnels in interchange piles foundation underpinning construction [J]. Applied Sciences, 2021, 11(4): 1611.
Xiao D, Jiang G L, Liao D, et al. Influence of cement-fly ash-gravel pile-supported approach embankment on abutment piles in soft ground [J]. Journal of Rock Mechanics and Geotechnical Engineering, 2018, 10(5): 977-985.
Tehrani F S, Nguyen P, Brinkgreve R B J, et al. Comparison of press-replace method and material point method for analysis of jacked piles [J]. Computers and Geotechnics, 2016, 78: 38-53.
Russo G, Marone G, Di Girolamo L. Hybrid energy piles as a smart and sustainable foundation [J]. Journal of Human, Earth, and Future, 2021, 2(3): 306-322.
Hokmabadi A S, Fatahi B, Samali B. Assessment of soil–pile–structure interaction influencing seismic response of mid-rise buildings sitting on floating pile foundations[J]. Computers and Geotechnics, 2014, 55: 172-186.
Hokmabadi A S, Fatahi B, Samali B. Assessment of soil–pile–structure interaction influencing seismic response of mid-rise buildings sitting on floating pile foundations[J]. Computers and Geotechnics, 2014, 55: 172-186.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 Author
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
