分层土中桩锚基础的复合承载性能评价方法研究

李达; 付殿福; 张晖; 孙国栋; 杨丰玮; 付登锋

doi:10.19912/j.0254-0096.tynxb.2025-0506

PDF(2242 KB)

太阳能学报 ›› 2026, Vol. 47 ›› Issue (8) : 627-637. DOI: 10.19912/j.0254-0096.tynxb.2025-0506

分层土中桩锚基础的复合承载性能评价方法研究

李达¹, 付殿福¹, 张晖¹, 孙国栋¹, 杨丰玮², 付登锋²

作者信息 +

RESEARCH ON EVALUATION METHOD OF COMPOSITE LOAD-BEARING PERFORMANCE OF PILE-ANCHOR FOUNDATION IN LAYERED SOILS

Li Da¹, Fu Dianfu¹, Zhang Hui¹, Sun Guodong¹, Yang Fengwei², Fu Dengfeng²

Author information +

文章历史 +

摘要

针对海上漂浮式风力机的桩锚基础,采用有限元法探讨其在典型单一土层中的承载破坏机理。依托某海上清洁能源开发场址的工程地质条件,利用破坏包络面方法,系统性研究复杂分层土环境下桩锚基础在V-H（竖向-水平荷载）、V-M（竖向-弯矩荷载）和H-M（水平-弯矩荷载）荷载组合下的耦合承载性能。在此基础上,建立一种基于极限荷载包络面评价桩锚在位承载力的计算方法。研究发现,V-H荷载空间包络线可用于判定以抗拔及侧滑失效为主导的桩锚基础承载性能。此外,需考虑系泊点偏心而导致的弯矩荷载影响,研究中规定的正向弯矩存在时会显著降低桩锚基础的抗拔承载性能,且随着弯矩的增大其降低程度显著,反之亦然。

Abstract

Regarding the deep‐water pile anchor for the floating wind turbine, its bearing performacne and failure mechanisms in a typical single‐layer soil are investigated by finite element analysis method.Based on a site-specified geotechnical conditions of a offshore clean energy project, the failure envelope method is then systematically applied to analyze the bearing performance of pile anchor in the multi-layered soil under the combined V-H （vertical-horizontal）, V-M （vertical-moment）, and H-M （horizontal-moment） loading, resepectively. Then an approach of estimating capacities of pile anchors is developed underlying the failure envelope theory. From this study, V-H load space envelopes are applicable for assessing bearing performance if the pull-out and lateral sliding modes are dominated at failure. Furthermore, the special attention must be paid to moment load effects induced by mooring point eccentricity. Increasing positive moment loads （defined in the study） are found to significantly reduce the pull-out capacity of pile anchors and vice versa.

导出引用

李达, 付殿福, 张晖, 孙国栋, 杨丰玮, 付登锋. 分层土中桩锚基础的复合承载性能评价方法研究[J]. 太阳能学报. 2026, 47(8): 627-637 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0506

Li Da, Fu Dianfu, Zhang Hui, Sun Guodong, Yang Fengwei, Fu Dengfeng. RESEARCH ON EVALUATION METHOD OF COMPOSITE LOAD-BEARING PERFORMANCE OF PILE-ANCHOR FOUNDATION IN LAYERED SOILS[J]. Acta Energiae Solaris Sinica. 2026, 47(8): 627-637 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0506

中图分类号： P752

参考文献

[1] 吴亚楠, 周庆伟, 武贺, 等. 中国近海太阳能资源特征分析及储量评估[J]. 太阳能学报, 2023, 44(12): 162-169.
Wu Y N, Zhou Q W, Wu H, et al.Characteristics analysis and reserve evaluation of offshore solar energy resources in China[J]. Acta Energiae Solaris Sinica, 2023, 44(12): 162-169.
[2] 耿宝磊, 唐旭, 金瑞佳. 海上浮式光伏结构及其水动力问题研究展望[J]. 海洋工程, 2024, 42(3): 190-208.
Geng B L, Tang X, Jin R J.Prospects for research on offshore floating photovoltaic structures and their hydrodynamic issues[J]. The Ocean Engineering, 2024, 42(3): 190-208.
[3] 徐普, 黎思亮, 宋启明, 等. 深水漂浮式光伏平台系泊结构动力响应分析[J]. 太阳能学报, 2023, 44(10): 156-164.
Xu P, Li S L, Song Q M, et al.Dynamic response analysis of mooring structure for deep-water floating photovoltaic platform[J]. Acta Energiae Solaris Sinica, 2023, 44(10): 156-164.
[4] Kwon O K, Kim J B, Kweon H M.An experimental study on the resistance and movement of short pile installed in sands under horizontal pullout load[J]. International Journal of Naval Architecture And ocean Engineering, 2014, 6(1): 87-97.
[5] 孙晓立. 抗拔桩承载力和变形计算方法研究[D]. 上海: 同济大学, 2007.
Sun X L.Study of the uplift capacity and deformation of tension piles[D]. Shanghai: Tongji University, 2007.
[6] Chattopadhyay B C, Pise P J.Uplift capacity of piles in sand[J]. Journal of Geotechnical Engineering, 1986, 112(9): 888-904.
[7] Das B M, Seeley G R, Pfeifle T W.Pullout resistance of rough rigid piles in granular soil[J]. Soils and Foundations, 1977, 17(3): 72-77.
[8] Alawneh A S, Malkawi A I H, Al-deeky H. Tension tests on smooth and rough model piles in dry sand[J]. Canadian Geotechnical Journal, 1999, 36(4): 746-753.
[9] Brinch Hansen J.The ultimate resistance of rigid piles against transversal forces[R]. Copenhagen: Danish Geotechnical Institute, Bulletin 12,1961: 5-9.
[10] Broms B B.Lateral resistance of piles in cohesive soils[J]. Journal of the soil Mechanics and Foundations Division, 1964, 90(2): 27-63.
[11] Reese L C, Matlock H.Non-dimensional solution for laterally loaded piles with soil modulus assumed proportional to depth[C]//Proceedings of the 8th Texas Conference on Soil Mechanics and Foundation Engineering. Austin: Bureau of Engineering Research, University of Texas, 1956: 1-41.
[12] Kirkwood P B.Cyclic lateral loading of monopile foundations in sand[D]. Cambridge: University of Cambridge, 2015.
[13] Poulos H G.Behavior of laterally loaded piles: I-single piles[J]. Journal of the Soil Mechanics and Foundations Division, 1971, 97(5): 711-731.
[14] Lu W J, Zhang G.Influence mechanism of vertical-horizontal combined loads on the response of a single pile in sand[J]. Soils and Foundations, 2018, 58(5): 1228-1239.
[15] Shin E C, Das B M, Puri V K, et al.Ultimate uplift capacity of model rigid metal piles in clay[J]. Geotechnical & Geological Engineering, 1993, 11(3): 203-215.
[16] 杨明辉, 杨学文, 赵明华. 黏性土中倾斜荷载下抗拔桩的模型试验研究[J]. 湖南大学学报(自然科学版), 2016, 43(11): 13-19.
Yang M H, Yang X W, Zhao M H.Study of model experiments on uplift piles in clay under oblique loads[J]. Journal of Hunan University (Natural Sciences), 2016, 43(11): 13-19.
[17] 杨学文. 倾斜荷载下抗拔桩模型试验与数值模拟研究[D]. 长沙: 湖南大学, 2016.
Yang X W.Model test and numerical simulation study of uplift piles under oblique loading[D]. Changsha: Hunan University, 2016.
[18] Shao X D, Jiang C, FU Y, et al.Failure envelope for offshore rigid piles under combined horizontal-moment loading in clay with linearly increasing undrained shear strength[J]. Ocean Engineering, 2024, 307: 118168.
[19] Li Z, Kotronis P, Escoffier S.Numerical study of the 3D failure envelope of a single pile in sand[J]. Computers and Geotechnics, 2014, 62: 11-26.
[20] Brinkgreve R B J, Engin E, Swolfs W M. PLAXIS3D 2013 user manual[M]. Delft: PLAXIS bv, 2013.
[21] Rui S J, Zhou Z F, Gao Z, et al.A review on mooring lines and anchors of floating marine structures[J]. Renewable and Sustainable Energy Reviews, 2024, 199: 114547.
[22] Murphy G, Igoe D, Doherty P, et al.3D FEM approach for laterally loaded monopile design[J]. Computers and Geotechnics, 2018, 100: 76-83.
[23] Grimstad G, Andresen L, Jostad H P.NGI-ADP: Anisotropic shear strength model for clay[J]. International Journal for numerical and Analytical Methods in Geomechanics, 2012, 36(4): 483-497.
[24] Schanz T, Vermeer P A.On the stiffness of sands[C]//Pre-failure deformation behaviour of geomaterials. London: Thomas Telford Publishing, 1998: 383-387.
[25] 刘志祥. PLAXIS高级应用教程[M]. 北京: 机械工业出版社, 2015, 17-22.
Liu Z X.Plaxis advanced application tutorial[M]. Beijing: Chinese Machine Press, 2015: 17-22.
[26] Khezri A, Park H, Lee D.Numerical study on the lateral load response of offshore monopile foundations in clay: effect of slenderness ratio[J]. Applied Sciences, 2024, 14(18): 8366.
[27] DNV-RP-C212: Offshore soil mechanics and geotechnical engineering[S].
[28] Bransby M F, Randolph M F.Shallow foundations subject to combined loadings[C]//Proceedings of the 9th International Conference on Computer Methods and Advances in Geomechanics. Rotterdam: A. A. Balkema, 1997, 3: 1947-1952.
[29] Bransby M F, Randolph M F.Combined loading of skirted foundations[J]. Géotechnique, 1998, 48(5): 637-655.
[30] Wang H, Wang L Z, Hong Y, et al.Centrifuge testing on monotonic and cyclic lateral behavior of large-diameter slender piles in sand[J]. Ocean Engineering, 2021, 226: 108299.
[31] Byrne B W, Mcadam R A, Burd H J, et al.Monotonic laterally loaded pile testing in a stiff glacial clay till at Cowden[J]. Géotechnique, 2020, 70(11): 970-985.
[32] Kim Y S, Jo Y, Jang Y S.Pullout behavior of suction piles in saturated sand subjected to combined vertical and horizontal loading-centrifuge and finite element analysis[J]. KSCE Journal of Civil Engineering, 2024, 28(4): 1183-1193.
[33] Tran N X, Hung L C, Kim S R.Evaluation of horizontal and moment bearing capacities of tripod bucket foundations in sand[J]. Ocean Engineering, 2017, 140: 209-221.
[34] Li L, Li J H, Huang J S, et al.Bearing capacity of spudcan foundations in a spatially varying clayey seabed[J]. Ocean Engineering, 2017, 143: 97-105.
[35] Poulos H G, Hull T S.The role of analytical geomechanics in foundation engineering[C]//Foundation Engineering: current principles and practices. New York: ASCE, 1989, 2: 1578-1606.
[36] 王海军, 许溁, 邓明基, 等. 陆上风电咬合桩筒型基础筒裙协同承载能力研究[J]. 太阳能学报, 2025, 46(2): 539-547.
Wang H J, Xu Y, Deng M J, et al.Study of collaborative bearing capacity of bucket skirt of secant piled bucket foundation for onshore wind turbine[J]. Acta Energiae Solaris Sinica, 2025, 46(2): 539-547.