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J4  2013, Vol. 47 Issue (3): 502-507    DOI: 10.3785/j.issn.1008-973X.2013.03.015
土木工程     
软基煤场堆载挡风墙桩基桩土共同作用分析
吴有霞1, 王湛1,钟润辉2,李玲玲1,冯智宏3,王起4
1. 浙江大学 建筑工程学院,浙江 杭州 310058;2. 华东电力设计院,上海 200063;
3. 国电浙江北仑第一发电有限公司,浙江 宁波 315800|4.浙江省电力设计院,浙江 杭州310058
Analysis of interaction between dust break wall piles and soil
subjected to coal loading in soft foundation
WU You-xia1, WANG Zhan1, ZHONG Run-hui2,LI Ling-ling1,FENG Zhi-hong3,WANG Qi4
1. College of Architectural Engineering,Zhejiang University,Hangzhou 310058,China;
2.East China Electric Power Design Institute, Shanghai 20006 , China;3. Zhejiang Beilun First Power Co.
Ltd,State Power,Ningbo 315800,China;4. Zhejiang Electric Design Institute,Hangzhou 310058,China       
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摘要:

为了分析在大面积堆载情况下临近桩基对土体位移变形产生的影响,结合北仑电厂堆载预压工程,对桩基与土体的相互作用进行三维有限元建模分析.在充分考虑桩基对土体变形所起的约束作用的基础上,通过数值模拟分析得出:在堆载作用下,有桩时比无桩时土体沉降减少|桩周地表在一定范围内土体侧向变形加大.通过桩身弯矩与桩内钢筋的应力计算,验证了软基上煤场堆煤后挡风墙桩基的安全性,并得出了估算存在承台条件下的桩身最大弯矩的经验公式.将所得的计算结果与现场实测数据进行了比较,表明两者有较好的一致性,研究结果可用于指导有关的设计和施工.

Abstract:

 In order to study the soil deformation influenced by adjacent piles when subjected to large area loading, 3D finite element method was adopted to investigate the pile-soil interaction in the Beilun power station preloading project. By considering the pile restriction to soil deformation emphatically, the numerical simulation analysis showed that the soil settlement decreased with piles existed, while the soil lateral deformation increased around the piles in a certain range close to the ground. Moreover, the bending moment of pile body and the stress of the steel embedded in the pile were calculated to examine the stability of break wall pile foundation under loading. An empirical equation of maximum bending moment was obtained for piles with caps. Good agreement of calculated results with the measured data showed that this work can be used to support the relative design and construction.

出版日期: 2013-03-01
:  TU 443  
通讯作者: 李玲玲,女,助理研究员,博士.     E-mail: lingzju@126.com
作者简介: 吴有霞(1987-),女,硕士生,从事岩土工程专业研究.E-mail:kodona@126.com
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引用本文:

吴有霞, 王湛, 钟润辉, 李玲玲, 冯智宏, 王起. 软基煤场堆载挡风墙桩基桩土共同作用分析[J]. J4, 2013, 47(3): 502-507.

WU You-xia, WANG Zhan, ZHONG Run-hui2, LI Ling-ling, FENG Zhi-hong, WANG Qi. Analysis of interaction between dust break wall piles and soil
subjected to coal loading in soft foundation. J4, 2013, 47(3): 502-507.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2013.03.015        http://www.zjujournals.com/eng/CN/Y2013/V47/I3/502

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