|本期目录/Table of Contents|

[1]王彬彬,路宏伟,洪鑫,等.地热桩荷载-温度作用下单桩沉降特性数值分析[J].南京工业大学学报(自然科学版),2016,38(01):89-95.[doi:10.3969/j.issn.1671-7627.2016.01.015]
 WANG Binbin,LU Hongwei,HONG Xin,et al.Numerical analysis on thermo-mechanical settlement characteristics of geothermal energy single pile[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(01):89-95.[doi:10.3969/j.issn.1671-7627.2016.01.015]
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地热桩荷载-温度作用下单桩沉降特性数值分析()
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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:
38
期数:
2016年01期
页码:
89-95
栏目:
出版日期:
2016-01-10

文章信息/Info

Title:
Numerical analysis on thermo-mechanical settlement characteristics of geothermal energy single pile
文章编号:
1671-7627(2016)01-0089-07
作者:
王彬彬1路宏伟2洪鑫3王昊1蒋刚1
1.南京工业大学 城市地下空间研究中心,江苏 南京 210009; 2.江苏省住房和城乡建设厅 科技发展中心,江苏 南京 210036; 3.江苏中大建设集团有限公司,江苏 昆山 215300
Author(s):
WANG Binbin1LU Hongwei2HONG Xin3WANG Hao1JIANG Gang1
1.Research Center of Urban Underground Space,Nanjing Tech University,Nanjing 210009,China; 2.Technology Development Center,Jiangsu Provincial Department of Housing and Urban Rural Construction, Nanjing 210036,China; 3.Jiangsu Zhongda Construction Group Co
关键词:
地热桩 荷载-温度作用 持续周期性温度循环 桩顶累积沉降
Keywords:
geothermal energy pile thermo-mechanical effect continuous periodic temperature cycle cumulative settlement of pile top
分类号:
TU473
DOI:
10.3969/j.issn.1671-7627.2016.01.015
文献标志码:
A
摘要:
建立了地热桩荷载-温度作用数值计算模型,并用现场试验数据进行模型的验证。结合不同气候地区地源热泵系统运营特征模拟了地热桩3种不同持续运营工况。给出了不同荷载水平下,升温、降温和升-降温持续周期性运营工况影响的单桩桩顶沉降变化曲线。结果表明:长期运营过程中桩顶沉降呈现周期性变化并产生累积; 沉降累积效应与地热桩运营工况以及桩顶荷载水平有关; 地热桩工程应用应关注持续周期性运营过程中温度的影响。
Abstract:
Geothermal energy pile combined pile foundation with ground source heat pump heat exchange tube,the bearing properties of geothermal energy were pile investigated.A numerical calculation model for geothermal energy pile was established and the available experimental data in literature were used to validate the model calculation.Combined with the operation characteristics of the ground source heat pump system in different climate subareas,heating,cooling and heating-cooling continuous cyclic cases of geothermal energy pile were simulated.The curves of the settlement of pile top at different load levels of three continuous operation conditions due to temperature variation were given.The results indicated that the settlement of pile top presented periodic change and could lead to increase at the same time during the long term operation process,the cumulative effect of settlement of geothermal energy pile was affected by the load level of geothermal energy pile and the operating case of the ground source heat pump system. The influence of temperature in the long term operation should be considered in application of geothermal energy pile.

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备注/Memo

备注/Memo:
收稿日期:2015-02-28
基金项目:江苏省六大人才高峰项目(2012-JZ-009); 江苏省建筑节能示范科技项目(2013SF01)
作者简介:王彬彬(1989—),男,江苏南通人,硕士,主要研究方向为桩基工程; 蒋刚(联系人),教授,E-mail:g.jiang@njtech.edu.cn.
引用本文:王彬彬,路宏伟,洪鑫,等.地热桩荷载-温度作用下单桩沉降特性数值分析[J].南京工业大学学报(自然科学版),2016,38(1):89-95..
更新日期/Last Update: 2016-01-20