Characteristics of compressive bearing capacity and resistance to foundation freeze-thaw of the isolation helical pile

LI Xuyong; YANG Zhongping; LIU Gang; LI Yonghua; ZHANG Yiming

doi:10.11779/CJGE20230209

Volume 46 Issue 6

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Chinese Journal of Geotechnical Engineering > 2024 > 46(6): 1187-1196. > DOI: 10.11779/CJGE20230209

LI Xuyong, YANG Zhongping, LIU Gang, LI Yonghua, ZHANG Yiming. Characteristics of compressive bearing capacity and resistance to foundation freeze-thaw of the isolation helical pile[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(6): 1187-1196. DOI: 10.11779/CJGE20230209

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Characteristics of compressive bearing capacity and resistance to foundation freeze-thaw of the isolation helical pile

LI Xuyong^1,,
YANG Zhongping^{1, 2, 3, ,},
LIU Gang^{1, 3},
LI Yonghua¹,
ZHANG Yiming¹

1.
School of Civil Engineering, Chongqing University, Chongqing 400045, China
2.
National Joint Engineering Research Center of Geohazards Prevention in the Reservoir Areas (Chongqing University), Chongqing 400045, China
3.
Key Laboratory of New Technology for Construction of Cities in Mountain Area of Ministry of Education (Chongqing University), Chongqing 400045, China

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Received Date: March 12, 2023
Available Online: May 29, 2023

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Abstract

Abstract

Based on the isolation helical piles designed to resist vertical loads and eliminate the effects of freeze-thaw of foundation, the characteristics of force evolution, load transfer, and foundation response of two typical types of helical piles (S/D < S/D_cr and S/D≥S/D_cr) during settlement, as well as the influences and mechanisms of pile geometries on the bearing capacity of the single pile are revealed from the perspective of pile force. Furthermore, the performance of the new piles against freeze-thaw deformation of foundation is examined. The results show that: (1) The bottom helixes and the lower pile bodies of the two typical piles share the same stress characteristics during the settlement, whereas the stress magnitude and evolution characteristics of end resistances of the remaining upper helixes and side friction resistances of inter-helixe piles differ significantly. (2) The end resistance of each helix of piles with S/D≥S/D_cr is essentially equal, and the additional stress that the helixes exert on the underlying soil significantly enhances the side friction of piles. This also determines the top-down near-exponential decay trend of the pile side frictional resistance between the helixes. The end resistances of the upper helixes are only about 1/5 of the bottom ones for the piles with S/D < S/D_cr. (3) The compressive bearing capacities of the two types of piles all grow linearly as the embedment ratio, helix diameter and helix number increase, and linearly increase first and then decrease rapidly with the increment of pile diameters. These pile geometries possess heavier impacts on the bearing capacity of piles with S/D≥S/D_cr. The bearing capacity of piles with S/D < S/D_cr increases significantly with the increase of S/D, whereas that of piles with S/D≥S/D_cr decreases linearly. (4) The helical pile has a significant advantage over the conventional pile in resisting the impact of freeze-thaw deformation of foundation. The impact can be further eliminated by installing an isolation sleeve on the pile within the frozen soil depth.
- isolation helical pile,
- typical pile type,
- compressive load,
- force evolution,
- pile parameter,
- freeze-thaw of foundation

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[1]	PERKO H A. Helical Piles: a Practical Guide to Design and Installation[M]. Hoboken: J Wiley, 2009.
[2]	DEBNATH A, SINGH V P. Analysis and design methods of helical piles: a critical review with emphasis on finite element method[J]. Arabian Journal of Geosciences, 2022, 15(18): 1-31.
[3]	郝冬雪, 王磊, 陈榕, 等. 冻融循环下粉砂中螺旋锚抗拔稳定模型试验研究[J]. 岩土工程学报, 2023, 45(1): 57-65. doi: 10.11779/CJGE20211293 HAO Dongxue, WANG Lei, CHEN Rong, et al. Experimental investigation on uplift stability of helical anchors in silty sand under freeze-thaw cycles[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(1): 57-65. (in Chinese) doi: 10.11779/CJGE20211293
[4]	王腾飞, 刘建坤, 邰博文, 等. 螺旋桩冻拔特性的模型试验研究[J]. 岩土工程学报, 2018, 40(6): 1084-1092. doi: 10.11779/CJGE201806014 WANG Tengfei, LIU Jiankun, TAI Bowen, et al. Model tests on frost jacking behaviors of helical steel piles[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(6): 1084-1092. (in Chinese) doi: 10.11779/CJGE201806014
[5]	KHAN U, SIDDIQUA S. Study of compressive loading capacities of helical piles using torque method and induced settlements[J]. Environmental Earth Sciences, 2018, 77(1): 22. doi: 10.1007/s12665-017-7199-z
[6]	ELKASABGY M, EL NAGGAR M H. Lateral performance and p-y curves for large-capacity helical piles installed in clayey glacial deposit[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2019, 145(10): 04019078. doi: 10.1061/(ASCE)GT.1943-5606.0002063
[7]	SAKR M. Performance of helical piles in oil sand[J]. Canadian Geotechnical Journal, 2009, 46(9): 1046-1061. doi: 10.1139/T09-044
[8]	AYDIN M, BRADKA T D, KORT D A. Osterberg cell load testing on helical piles[C]//Geo-Frontiers 2011. Dallas, 2011.
[9]	LUTENEGGER A J. Cylindrical shear or plate bearing? —uplift behavior of multi-helix screw anchors in clay[C]// Contemporary Topics in Deep Foundations. Orlando, 2009.
[10]	RAWAT S, GUPTA A K. Numerical modelling of pullout of helical soil nail[J]. Journal of Rock Mechanics and Geotechnical Engineering, 2017, 9(4): 648-658. doi: 10.1016/j.jrmge.2017.01.007
[11]	GEORGE B E, BANERJEE S, GANDHI S R. Numerical analysis of helical piles in cohesionless soil[J]. International Journal of Geotechnical Engineering, 2020, 14(4): 361-375. doi: 10.1080/19386362.2017.1419912
[12]	MERIFIELD R S. Ultimate uplift capacity of multiplate helical type anchors in clay[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2011, 137(7): 704-716. doi: 10.1061/(ASCE)GT.1943-5606.0000478
[13]	ARAÚJO P N G, DA SILVA COSTA J P, COSTA Y D J. Numerical study of geometric characteristics of helical piles subjected to uplift[C]// Proceedings of the ⅩⅩⅩⅧ Iberian Latin American Congress on Computational Methods in Engineering. Florianopolis, 2017.
[14]	MITTAL S, MUKHERJEE S. Behaviour of group of helical screw anchors under compressive loads[J]. Geotechnical and Geological Engineering, 2015, 33(3): 575-592. doi: 10.1007/s10706-015-9841-4
[15]	MOHAJERANI A, BOSNJAK D, BROMWICH D. Analysis and design methods of screw piles: a review[J]. Soils and Foundations, 2016, 56(1): 115-128. doi: 10.1016/j.sandf.2016.01.009
[16]	VIGNESH V, MAYAKRISHNAN M. Design parameters and behavior of helical piles in cohesive soils—a review[J]. Arabian Journal of Geosciences, 2020, 13(22): 1194. doi: 10.1007/s12517-020-06165-1
[17]	POLISHCHUK A I, MAKSIMOV F A. Improving the design of screw piles for temporary building foundations[J]. Soil Mechanics and Foundation Engineering, 2016, 53(4): 282-285. doi: 10.1007/s11204-016-9399-z
[18]	ALWALAN M F, EL NAGGAR M H. Load-transfer mechanism of helical piles under compressive and impact loading[J]. International Journal of Geomechanics, 2021, 21(6): 04021082. doi: 10.1061/(ASCE)GM.1943-5622.0002037
[19]	NOWKANDEH M J, CHOOBBASTI A J. Numerical study of single helical piles and helical pile groups under compressive loading in cohesive and cohesionless soils[J]. Bulletin of Engineering Geology and the Environment, 2021, 80(5): 4001-4023. doi: 10.1007/s10064-021-02158-w
[20]	杨忠平, 李绪勇, 李诗琪, 等. 一种隔离式抗冻融循环桩及其设计方法: CN113502812A[P]. 2022-05-03. YANG Zhongping, LI Xuyong, LI Shiqi, et al. Isolation Type Freeze-Thaw Resistant Circulating Pile and Design Method Thereof: CN113502812A[P]. 2022-05-03. (in Chinese)
[21]	白青波, 李旭, 田亚护, 等. 冻土水热耦合方程及数值模拟研究[J]. 岩土工程学报, 2015, 37(增刊2): 131-136. doi: 10.11779/CJGE2015S2026 BAI Qingbo, LI Xu, TIAN Yahu, et al. Equations and numerical simulation for coupled water and heat transfer in frozen soil[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(S2): 131-136. (in Chinese) doi: 10.11779/CJGE2015S2026
[22]	李洪升, 刘增利, 梁承姬. 冻土水热力耦合作用的数学模型及数值模拟[J]. 力学学报, 2001(5): 621-629. doi: 10.3321/j.issn:0459-1879.2001.05.005 LI Hongsheng, LIU Zengli, LIANG Chengji. Mathematical model for coupled moisture, heat and stress field and numerical simulation of frozen soil[J]. Acta Mechanica Sinica, 2001(5): 621-629. (in Chinese) doi: 10.3321/j.issn:0459-1879.2001.05.005
[23]	王晓刚. 冻土区桩土体系冻胀融沉特性研究[D]. 西安: 西安科技大学, 2019. WANG Xiaogang. Study on Characteristics of Frost Heave and Thawing Settlement of Pile-Soil System in Permafrost Regions[D]. Xi'an: Xi'an University of Science and Technology, 2019. (in Chinese)
[24]	龚晓南. 桩基工程手册[M]. 2版. 北京: 中国建筑工业出版社, 2016. GONG Xiaonan. Handbook of Pile Foundation Engineering[M]. 2nd ed. Beijing: China Architecture & Building Press, 2016. (in Chinese)

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Characteristics of compressive bearing capacity and resistance to foundation freeze-thaw of the isolation helical pile

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