Influence of Vertical Load on the Lateral Bearing Capacityof Wind Turbine Foundations

doi:10.3969/j.issn.16740696.2017.02.10

Journal of Chongqing Jiaotong University(Natural Science) ›› 2017, Vol. 36 ›› Issue (2): 55-60.DOI: 10.3969/j.issn.16740696.2017.02.10

• Port & Waterway · Hydraulic & Hydroelectric · Resources & Environment • Previous Articles Next Articles

Influence of Vertical Load on the Lateral Bearing Capacityof Wind Turbine Foundations

MU Linlong1,2, LI Jie1,2, ZHANG Yanjun1,2, HUANG Maosong1,2

(1.Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University,Shanghai 200092, P.R.China;2. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, P.R.China)

Received:2015-09-30 Revised:2015-12-11 Online:2017-02-20 Published:2017-02-28

竖向荷载对风机基础水平承载性能影响试验研究

木林隆1,2，李杰1,2，张延军1,2，黄茂松1,2

(1.同济大学岩土与地下工程教育部重点实验室，上海 200092； 2.同济大学地下建筑与工程系，上海 200092)

作者简介:第一作者：木林隆(1984— )，男，浙江温州人，讲师，博士，主要从事岩土力学与岩土工程方面的研究。Email:mulinlong@hotmail.com。
基金资助:
国家自然科学基金项目(41572260,51208378)

Abstract

Abstract: Piled beamraft foundation of wind generating set is a new form of the foundation for wind turbine on land and a indepth discussion on the mechanical and deformation characteristics of beam, piles and soil of piled beamraft foundations by laboratory model test was carried out with focus on the impact of vertical load on the lateral bearing capacity of piled beamraft foundations. The study shows that the horizontal bearing capacity of piled beamraft foundations will be improved under vertical load. The uneven distribution of axial pile on pilehead under horizontal load decreased with increase of vertical load and pilesoil load shear ratio reduced.

Key words: geotechnical engineering ；turbine foundations, piled beamraft foundation, model tests, coupling load

摘要： 梁板式风机基础是陆上风机基础的一种新型形式。根据室内模型试验对梁板式桩筏基础内的梁、桩、土等的受力变形特性进行深入探讨，重点讨论了竖向荷载对风机梁板式桩筏基础水平承载性能的影响。研究表明：竖向荷载可以提高梁板式桩筏基础水平承载能力；水平荷载作用下，随着竖向荷载的增加，桩顶轴力分配不均匀性减小，桩土荷载分担比减小。

关键词: 岩土工程, 风机基础, 梁板式桩筏基础, 模型试验, 耦合荷载

CLC Number:

TU 473

MU Linlong1,2, LI Jie1,2, ZHANG Yanjun1,2, HUANG Maosong1,2. Influence of Vertical Load on the Lateral Bearing Capacityof Wind Turbine Foundations[J]. Journal of Chongqing Jiaotong University(Natural Science), 2017, 36(2): 55-60.

木林隆1,2，李杰1,2，张延军1,2，黄茂松1,2. 竖向荷载对风机基础水平承载性能影响试验研究[J]. 重庆交通大学学报（自然科学版）, 2017, 36(2): 55-60.

References

［1］ CHOW Y K, YONG K Y, SHEN W Y. Analysis of piled raft foundation using a variational approach［J］. International Journal of Geomechanics, 2001, 1(2): 129147.
［2］ NAGAI H, TSUCHIYA T. Nonlinar analytical model for piled raft foundation subjected to horizontal load and application of insitu lateral loading tests［J］. Journal of Structural & Construction Engineering, 2005，36:113119.
［3］ MENDONCA A V, PAIVA J B. An elastostatic FEM/BEM analysis of vertically loaded raft foundation on piles［J］. Engineering Analysis with Boundary Elements, 2003, 27(3): 237247.
［4］江书超. 梁板式基础工作性状试验研究［D］. 北京: 中国建筑科学研究院, 2012.
JIANG Shuchao. Experiment Study on Working Properties of SlabandBeam Foundation［D］. Beijing: China Academy of Building Research，2002.
［5］王伟, 杨敏. 竖向荷载下桩筏基础通用分析方法［J］.岩土工程学报, 2008, 30(1): 106111.
WANG Wei, YANG Min.General analysis method of piled raft foundation under vertical loading［J］. Chinese Journal of Geotechnical Engineering, 2008, 30(1): 106111.
［6］何春保, 蔡健, 黄菊清，等. 上部结构、梁板式矩形筏基和地基共同作用解析分析［J］. 岩石力学与工程学报,2007,26(9):19231931.
HE Chunbao, CAI Jian, HUANG Juqing，et al.Analytical analysis of intercation of superstructurestiffened and rectangular raftsoil［J］.Chinese Journal of Rock Mechanics and Engineering, 2007, 26(9):19231931.
［7］王曙光. 竖向荷载作用下梁板式筏形基础基底反力及变形特征研究［D］ . 北京：中国建筑科学研究院, 2002.
WANG Shuguang. Study on Deformation and Contact Pressure of SlabandBeam Raft Foundation Under Vertical Loads［D］. Beijing: China Academy of Building Research，2002.
［8］连柯楠,木林隆,黄茂松,等.国华通辽风电场三期工程梁板式桩筏基础性状数值分析［J］. 岩土力学, 2012, 33(增刊1): 290296.
LIAN Kenan, MU Linlong, HUANG Maosong,et al. Finite element analysis for piled beamslab foundation of the thirdphase project of Guohua Tongliao wind farms［J］. Rock and Soil Mechanics, 2012, 33(Sup1): 290296.
［9］张延军，木林隆，钱建固，等. 梁板式桩筏基础现场测试分析［J］.岩土力学,2014,35(11):32533258.
ZHANG Yanjun, MU Linglong, QIAN Jiangu, et al.Field test of piled beamslab foundation［J］.Rock and Soil Mechanics, 2014, 35(11):32533258.
［10］木林隆，连柯楠，黄茂松，等. 风机梁板式桩筏基础承载特性大型模型试验研究［J］.岩土力学, 2015, 36(7):18771882.
MU Linglong, LIAN Kenan, HUANG Maosong, et al. Largescale model test on bearing capacity of piled beamslab foundation for wind turbine［J］.Rock and Soil Mechanics, 2015, 36(7):18771882.
［11］李婉，木林隆，连柯南.考虑刚度影响的风机梁板式桩筏基础模型试验研究［J］.岩土力学, 2014, 35(10):28752880.
LI Wan, MU Linlong, LIAN Kenan.Model test on piled beamslab raft foundation for wind turbines considering raft rigidity［J］.Rock and Soil Mechanics, 2014, 35(10):28752880.
［12］孔纲强, 杨庆, 郑鹏一,等.考虑时间效应的群桩负摩阻力模型试验研究［J］. 岩土工程学报, 2009, 31(12): 19131919.
KONG Gangqiang, YANG Qing, ZHENG Pengyi,et al.Model tests on negative skin friction for pile groups considering time effect［J］.Chinese Journal of Geotechnical Engineering, 2009, 31(12): 19131919.
［13］周洪波，茜平一，杨波，等. 水平荷载作用下群桩计算方法研究［J］. 工程勘察, 2000(1):45.
ZHOU Hongbo, QIAN Pingyi, YANG Bo, et al.Calculation method of pile group under horizontal loads［J］.Geotechnical Investigation & Surveying, 2000(1):45.

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Influence of Vertical Load on the Lateral Bearing Capacityof Wind Turbine Foundations

竖向荷载对风机基础水平承载性能影响试验研究

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