|本期目录/Table of Contents|

[1]董琼英,肖尊群*,汤东桑.不同变截面桩竖向承载特性的数值分析[J].武汉工程大学学报,2021,43(04):436-441.[doi:10.19843/j.cnki.CN42-1779/TQ.202006011]
 DONG Qiongying,XIAO Zunqun*,TANG Dongsang.Experimental Analysis of Vertical Bearing Characteristics of Piles with Different Variable Sections[J].Journal of Wuhan Institute of Technology,2021,43(04):436-441.[doi:10.19843/j.cnki.CN42-1779/TQ.202006011]
点击复制

不同变截面桩竖向承载特性的数值分析(/HTML)
分享到:

《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
43
期数:
2021年04期
页码:
436-441
栏目:
资源与环境工程
出版日期:
2021-08-31

文章信息/Info

Title:
Experimental Analysis of Vertical Bearing Characteristics of Piles with Different Variable Sections
文章编号:
1674 - 2869(2021)04 - 0436 - 06
作者:
董琼英1肖尊群*1汤东桑2
1. 武汉工程大学兴发矿业学院,湖北 武汉 430074;2. 武汉建工集团股份有限公司,湖北 武汉 430056
Author(s):
DONG Qiongying1XIAO Zunqun*1TANG Dongsang2
1. School of Xingfa Mine Technology,Wuhan Institute of Technology,Wuhan 430074,China;2. Wuhan Construction Engineering Group Co.,Ltd,Wuhan 430056,China
关键词:
有限元等截面桩变截面桩沉降侧摩阻力
Keywords:
finite element constant section pile variable section pile settlement lateral friction
分类号:
TU4
DOI:
10.19843/j.cnki.CN42-1779/TQ.202006011
文献标志码:
A
摘要:
基于现场试验,采用Abaqus有限元软件对等截面桩及变截面桩单桩竖向承载力测试实验过程进行数值模拟。结果表明:弹性变形阶段,竖向荷载-沉降曲线呈线性变化趋势,等截面桩比变截面桩桩身沉降较小;塑性屈服阶段,等截面桩与变截面桩单桩承载力几乎一致。变截面位置对桩侧摩阻力沿深度的分布有一定影响,最大侧摩阻力位置根据变截面的位置而变化。变截面桩的平均侧摩阻力较等截面桩的平均侧摩阻力大,变截面桩侧摩阻力效果较等截面桩更有优势。在相同承载力条件下,变截面桩所耗费的材料较等截面少,对于竖向承载特性,变截面桩与等截面桩表现基本一致,因此使用变截面桩能节约工程成本。
Abstract:
The numerical simulation of the experiment process of the vertical bearing capacity of single pile with constant section and variable section was performed with Abaqus finite element software based on field test. The results indicated that the vertical load-settlement curve shows a linear trend at the elastic deformation stage,and the settlement of constant section pile of the constant cross-section pile is smaller than that of the variable section pile. In the plastic yield stage,the bearing capacity of single variable cross-section pile is almost same with that of constant cross-section pile. The position of variable section has influences on the distribution of lateral friction along the depth,and the position of maximum lateral friction varies with the position of variable section. Compared with the constant section pile,the average lateral friction of variable section pile is larger than that of constant section pile,and the variable section pile exhibits more advantages than the uniform section pile in the aspect of exerting the effect of lateral friction. Under the condition of the same bearing capacity,the variable section pile consumes less material than the constant section pile. For the vertical bearing characteristics,the variable section pile performs nearly the same as the constant section pile. Thus it is concluded that the use of variable section pile can save the construction cost.

参考文献/References:

[1] 史佩栋. 桩基工程手册(桩和桩基手册)[M]. 2版. 北京:人民交通出版社,2015. [2] 钱德玲. 变截面桩与土的相互作用机理[M]. 合肥:合肥工业大学出版社,2003. [3] 李升连,任志华,葛书磊. 持力层性质对变截面桩承载特性的试验研究[J]. 公路交通科技(应用技术版),2019,15(7):206-208. [4] 王振波,刘君灿,顾超,等. 阶梯型变截面DX桩竖向静载模型试验研究[J]. 科学技术与工程,2018,18(14):67-72. [5] 方焘,张胤红,王宁,等. 一阶变截面桩与等截面桩对比试验研究[J]. 华东交通大学学报,2019,36(1):94-99. [6] 王景梅,蒋浩然. 大直径阶梯型变截面桩水平承载特性试验研究与理论分析[J]. 公路,2020,65(3):141-147. [7] 杨庆光,田捷,刘杰. 阶梯型变截面管桩沉桩阻力计算方法与模型试验研究[J]. 工业建筑,2015,45(11):104-110. [8] 刘新荣,方焘,耿大新,等. 大直径变径桩横向承载特性模型试验[J]. 中国公路学报,2013,26(6):80-86,190. [9] 张胤红. 粘土地层中阶梯型变截面桩横向承载特性试验研究[D]. 南昌:华东交通大学,2019. [10] LOPEZ-ANIDO R,MICHAEL A P,SANDFORD T C. Experimental characterization of FRP composite-wood pile structural response by bending test [J]. Marine Structures,2003,16(4):257-274. [11] HO C E, LIM C H, TAN C G. Characteristics of bored piles installed through jet grout layer [J]. Journal of Performance of Constructed Facilities,2002,16(4):160-168. [12] 刘复孝. 滚压成型螺纹灌注桩竖向承载力性能研究[D]. 哈尔滨:哈尔滨工业大学,2006. [13] SALCCB A F,CHEN W F. 张学言,译. 土的本构关系综述[J]. 力学进展,1987,17(2):261-268. [14] 代汝林,李忠芳,王姣. 基于ABAQUS的初始地应力平衡方法研究[J]. 重庆工商大学学报(自然科学版),2012,29(9):76-81. [15] 中华人民共和国住房和城乡建设部. 建筑基桩检测技术规范:JGJ 106-2014 [S]. 北京:中国建筑工业出版社,2014.

相似文献/References:

[1]孙庆新,陈旭勇*,杨冬波.刚构连续弯板桥空间有限元分析[J].武汉工程大学学报,2009,(05):41.
 SUN Qing xin,CHEN Xu yong,YANG Dong bo.Spatial finite element analysis of reinforced concrete continuous rigidframe curved slab bridges[J].Journal of Wuhan Institute of Technology,2009,(04):41.
[2]胡显燕,陈玮,邓娟,等.大尺度楼盖温度效应分析[J].武汉工程大学学报,2008,(03):44.
 HU Xian yan,CHEN Wei,DENG Juan,et al.Temperature response analysis for largearea slab[J].Journal of Wuhan Institute of Technology,2008,(04):44.
[3]舒安庆,王,魏化中.含腐蚀缺陷燃气管道极限载荷的有限元分析[J].武汉工程大学学报,2008,(02):102.
 SHU An qing,WANG Wei,WEI Hua zhong.Element analysis on limit load of corroded fuel gas pipelines[J].Journal of Wuhan Institute of Technology,2008,(04):102.
[4]肖瑶,郑贤中,周宁波.卫星天线锅盖冲压成形模拟与优化[J].武汉工程大学学报,2011,(09):96.
 XIAO Yao,ZHENG Xianzhong,ZHOU Ningbo.Stamping simulation and optimization of satellite antenna pot[J].Journal of Wuhan Institute of Technology,2011,(04):96.
[5]舒安庆,肖普,丁克勤,等.起重机双钩危险区域强度可靠性分析[J].武汉工程大学学报,2012,(7):45.[doi:103969/jissn16742869201207010]
 SHU An qing,XIAO Pu,DING Ke qin,et al.Assessment of strength reliability for crane double hook based on finite element analysis[J].Journal of Wuhan Institute of Technology,2012,(04):45.[doi:103969/jissn16742869201207010]
[6]张恒星.液化器异形偏心锥有限元应力分析[J].武汉工程大学学报,2012,(8):75.[doi:103969/jissn16742869201208019]
 ZHANG Heng xing.Finite element analysis of devolatilizer abnormity eccentric cone[J].Journal of Wuhan Institute of Technology,2012,(04):75.[doi:103969/jissn16742869201208019]
[7]刘万朋,施哲雄,何荣娥,等.塔设备连接法兰的校核方法研究及应用[J].武汉工程大学学报,2012,(11):73.[doi:103969/jissn16742869201211016]
 LIU Wan peng,SHI Zhe xiong,HE Rong e,et al.Study and application on checking method of tower equipment connecting flanges[J].Journal of Wuhan Institute of Technology,2012,(04):73.[doi:103969/jissn16742869201211016]
[8]何家胜,魏卫,朱晓明,等.含裂纹法兰接管的应力强度因子数值计算[J].武汉工程大学学报,2012,(12):50.[doi:103969/jissn16742869201212012]
 HE Jia sheng,WEI Wei,ZHU Xiao ming,et al.Numerical analysis of stress intensity factor of cracked nozzle flange[J].Journal of Wuhan Institute of Technology,2012,(04):50.[doi:103969/jissn16742869201212012]
[9]何家胜,李超,朱晓明,等.氢腐蚀分层对换热器筒体承载能力的影响[J].武汉工程大学学报,2013,(02):74.[doi:103969/jissn16742869201302016]
 HE jia sheng,LI chao,ZHU xiao ming,et al.Influence of bearing capacity of heat exchanger shell caused by hydrogen corrosion delaminating crack[J].Journal of Wuhan Institute of Technology,2013,(04):74.[doi:103969/jissn16742869201302016]
[10]丁克勤,刘关四,魏化中,等.快开式压力容器异型密封圈有限元分析[J].武汉工程大学学报,2013,(08):52.[doi:103969/jissn16742869201308010]
 DING Ke\|qin LIU Guan\|si WEI hua\|zhong,SHU An\|qing.Finite element analysis of special\|shaped sealing ring on quick actuating pressure vessel[J].Journal of Wuhan Institute of Technology,2013,(04):52.[doi:103969/jissn16742869201308010]

备注/Memo

备注/Memo:
收稿日期:2020-06-17基金项目:武汉工程大学第十一届研究生教育创新基金(CX2019102)作者简介:董琼英,硕士研究生。E-mail:760957820@qq.com*通讯作者:肖尊群,博士,副教授。E-mail:547309418@qq.com引文格式:董琼英,肖尊群,汤东桑. 不同变截面桩竖向承载特性的数值分析[J]. 武汉工程大学学报,2021,43(4):436-441.
更新日期/Last Update: 2021-08-07