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[1]黄胤培,蒋刚,路宏伟,等.基于指数模型的能源桩热-力耦合荷载传递法[J].南京工业大学学报(自然科学版),2019,41(01):96-103.[doi:10.3969/j.issn.1671-7627.2019.01.015]
 HUANG Yinpei,JIANG Gang,LU Hongwei,et al.Thermo-mechanical coupling load transfer method of energy pile based on exponential model[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2019,41(01):96-103.[doi:10.3969/j.issn.1671-7627.2019.01.015]
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基于指数模型的能源桩热-力耦合荷载传递法()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
41
期数:
2019年01期
页码:
96-103
栏目:
出版日期:
2019-01-28

文章信息/Info

Title:
Thermo-mechanical coupling load transfer method of energy pile based on exponential model
文章编号:
1671-7627(2019)01-0096-08
作者:
黄胤培1蒋刚1路宏伟2宋著1徐新丽1洪鑫3
1.南京工业大学 交通运输工程学院,江苏 南京 210009; 2.南京工业大学土木工程学院,江苏 南京 211800; 3.江苏中大建设集团有限公司 江苏 昆山 215300
Author(s):
HUANG Yinpei1JIANG Gang1LU Hongwei2SONG Zhu1XU Xinli1HONG Xin3
1.College of Transportation Science & Engineering,Nanjing Tech University,Nanjing 210009,China; 2.College of Civil Engineering, Nanjing Tech University,Nanjing 211800,China; 3.Jiangsu Zhongda Construction Group Co. Ltd.,Kunshan 215300,China
关键词:
能源桩 荷载传递法 热-力耦合 指数模型 热效应中性面
Keywords:
energy pile load transfer method thermo-mechanical coupling effect exponential function model thermal null surface
分类号:
TU473
DOI:
10.3969/j.issn.1671-7627.2019.01.015
文献标志码:
A
摘要:
能源桩技术的推广应用促进了能源桩分析理论的发展,但现有能源桩热-力耦合荷载传递法的研究尚不够完善。基于桩侧-土荷载传递的指数模型,改进了温度效应下能源桩热效应中性面确定条件,在荷载传递分析中叠加温度效应引起的桩身位移,建立了基于指数函数模型的能源桩热-力耦合荷载传递分析方法。结合能源桩的现场测试案例,利用本文方法进行了模拟,验证了本文方法的可行性。计算结果表明:温度效应引起了能源桩的桩身轴力及侧阻力的重分布。
Abstract:
The theory of geothermal energy pile can be improved by the practice of geothermal energy pile technology,but the research of thermo-mechanical coupling load transfer method of energy pile is not perfect enough now.Based on the exponential function model of soil-pile interaction for load transfer method,the method of determining the thermal null surface in energy pile with no thermal expansion or contraction under temperature effect was proposed,and displacement of pile element by temperature effect was added to the load transfer analysis.The thermo-mechanical coupling load transfer method of energy pile was established.The method was verified by two in site tests of energy piles.Results indicated that the exponential function model from the thermo-mechanical load transfer method was proper for energy pile,and that the axial stress and side shear resistance of energy pile were redistributed under thermo-mechanical coupling effect.

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备注/Memo

备注/Memo:
收稿日期:2017-02-23
基金项目:江苏省自然科学基金(BK20171468); 江苏省建筑节能示范科技项目(2013SF01)
作者简介:黄胤培(1992—),男,E-mail:545762594@qq.com; 蒋刚(联系人),教授,E-mail:g.jiang@njtech.edu.cn.
引用本文:黄胤培,蒋刚,路宏伟,等.基于指数模型的能源桩热-力耦合荷载传递法[J].南京工业大学学报(自然科学版),2019,41(1):96-103..
更新日期/Last Update: 2019-02-26