NUMERICAL ANALYSIS AND EXPERIMENT RESEARCH OF A NEW TYPE OF FOUNDATION FOR WIND TURBINES WITH BRACED TUBE FOUNDATION

Yue Xianglin; Huo Hongbin; Zhang Cheng; Chen Yan

doi:10.19912/j.0254-0096.tynxb.2023-1569

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (2) : 658-663. DOI: 10.19912/j.0254-0096.tynxb.2023-1569

NUMERICAL ANALYSIS AND EXPERIMENT RESEARCH OF A NEW TYPE OF FOUNDATION FOR WIND TURBINES WITH BRACED TUBE FOUNDATION

Yue Xianglin^1,2, Huo Hongbin¹, Zhang Cheng¹, Chen Yan²

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Abstract

A new type of onshore wind turbine foundation based on tube foundation with supporting beams, braced tube foundation, was proposed on the backdrop of the rapid development of the wind power industry and the high costs of the wind turbine foundation. By establishing a finite element model, the quantity of C40 concrete used for braced tube foundation are reduced by 49% compared to tube foundation. The relationship between the number of supporting beams of braced tube foundation and the ultimate horizontal bearing capacity has been studied, and it is found that the optimal range for the number of supporting beams is 4<n<12 and braced tube foundation has stronger load-bearing performance in cohesive soil. By conducting a scaled model experiment, it is verified that the accuracy of the finite element model and found that the ultimate bearing capacity ratio of the braced tube foundation to the tube foundation is 1.73∶1 under the same concrete volume, and the top horizontal displacement ratio is 0.68∶1 when the ultimate bearing capacity is reached. It shows that the braced tube foundation has advantages in bearing capacity, material consumption, and displacement control.

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wind turbine generators / bearing capacity / numerical simulation / scaled model experiment / braced tube foundation

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Yue Xianglin, Huo Hongbin, Zhang Cheng, Chen Yan. NUMERICAL ANALYSIS AND EXPERIMENT RESEARCH OF A NEW TYPE OF FOUNDATION FOR WIND TURBINES WITH BRACED TUBE FOUNDATION[J]. Acta Energiae Solaris Sinica. 2025, 46(2): 658-663 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1569

References

[1] NB/T 10311—2019, 陆上风电场工程风电机组基础设计规范[S].
NB/T 10311—2019, Code for design of wind turbine foundations for onshore wind power projects[S].
[2] 康明虎. 梁板式、无张力灌注桩与传统风机基础的对比分析[J]. 可再生能源, 2014, 32(3): 324-329.
KANG M H.Comparison of beam slab foundation, tensionless pile foundation and traditional foundation of wind turbine[J]. Renewable energy resources, 2014, 32(3): 324-329.
[3] 程峰, 霍宏斌, 付秋顺, 等. 筒型风电机组基础的受力机理和变形试验研究[J]. 风能, 2019(1): 72-76.
CHENG F, HUO H B, FU Q S, et al.Experimental study on stress mechanism and deformation of bucket wind turbine foundation[J]. Wind energy, 2019(1): 72-76.
[4] 汪嘉钰, 刘润, 陈广思, 等. 海上风电宽浅式筒型基础竖向极限承载力上限解[J]. 太阳能学报, 2022, 43(3): 294-300.
WANG J Y, LIU R, CHEN G S, et al.Upper bound solution limit analysis of vertical bearing capacity of shallow bucket foundation for offshore wind turbines[J]. Acta energiae solaris sinica, 2022, 43(3): 294-300.
[5] GUPTA B K, BASU D.Applicability of Timoshenko, Euler-Bernoulli and rigid beam theories in analysis of laterally loaded monopiles and piles[J]. Géotechnique, 2018, 68(9): 772-785.
[6] TIMOSHENKO S P.LXVI. On the correction for shear of the differential equation for transverse vibrations of prismatic bars[J]. The london, Edinburgh, and Dublin philosophical magazine and journal of science, 1921, 41(245): 744-746.
[7] ALEEM M, BHATTACHARYA S, CUI L, et al.Load utilisation (LU) ratio of monopiles supporting offshore wind turbines: formulation and examples from European wind farms[J]. Ocean engineering, 2022, 248: 110798.
[8] ALKHOURY P, SOUBRA A H, REY V, et al.Dynamic analysis of a monopile-supported offshore wind turbine considering the soil-foundation-structure interaction[J]. Soil dynamics and earthquake engineering, 2022, 158: 107281.
[9] BRANSBY M F, MARTIN C M.Elasto-plastic modelling of bucket foundations[M]. Numerical Models in Geomechanics. London: CRC Press, 2020: 425-430.
[10] MANA D S K, GOURVENEC S M, RANDOLPH M F, et al. Failure mechanisms of skirted foundations in uplift and compression[J]. International journal of physical modelling in geotechnics, 2012, 12(2): 47-62.
[11] KELLY R B, HOULSBY G T, BYRNE B W.A comparison of field and laboratory tests of caisson foundations in sand and clay[J]. Géotechnique, 2006, 56(9): 617-626.
[12] BHATTACHARYA S, ADHIKARI S.Experimental validation of soil-structure interaction of offshore wind turbines[J]. Soil dynamics and earthquake engineering, 2011, 31(5/6): 805-816.
[13] 霍宏斌, 黄必能, 王晓梅, 等. 一种抗倾覆的后张法预应力管状风机基础结构: CN114215100A[P].2022-03-22.
HUO H B, HUANG B N, WANG X M, et al. A prestressed tube foundation configuration with post-tensioning method and resisting overturning for wind turbine: CN114215100A[P].2022-03-22.
[14] BRINKGREVE R B J, KUMARSWAMY S, SWOLFS W M. PLAXIS manual 2018[M]. Delft: Plaxis bv, 2018.
[15] BUTTERFIELD R, HOULSBY G T, GOTTARDI G.Standardized sign conventions and notation for generally loaded foundations[J]. Géotechnique, 1997, 47(5): 1051-1054.