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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

40卷

期数:

2023年03期

页码:

121-129

栏目:

隧道工程

出版日期:

2023-05-20

文章信息/Info

Title:

Field tests on thermal induced stress and heat transfer efficiency of tunnel invert and base energy pile

文章编号:

1673-2049(2023)03-0121-09

作者:

于 达¹,孔纲强¹,季伟伟¹,王成龙²,王忠涛³,杨 庆³

(1. 河海大学 岩土力学与堤坝工程教育部重点实验室,江苏 南京 210024; 2. 重庆大学 山地城镇建设与新技术教育部重点实验室,重庆 400045; 3. 大连理工大学 海岸和近海工程国家重点实验室,辽宁 大连 116024)

Author(s):

YU Da¹, KONG Gangqiang¹, JI Weiwei¹, WANG Chenglong², WANG Zhongtao³, YANG Qing³

(1.Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210024, Jiangsu, China; 2.Key Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing University, Chongqing 400045, China; 3.State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China)

关键词:

隧道仰拱;  桩基;  黄土塬区;  热致应力;  换热效率;  现场试验

Keywords:

tunnel invert;  pile foundation;  loess area;  thermal induced stress;  heat transfer efficiency;  field test

分类号:

TU473

DOI:

10.19815/j.jace.2022.03047

文献标志码:

A

摘要:

依托黄土塬区银川—西安高铁驿马一号隧道工程,在隧道仰拱和基底桩基内埋设换热管,搭建能源隧道仰拱-基底能量桩联合热泵系统,实测不同进口温度作用下换热管的进出口水温、隧道仰拱结构和基底桩基的温度、热致应力,探讨黄土塬区隧道仰拱结构及基底桩基的换热效率、热力响应特性与变化规律。结果表明:在现场特定条件下,进口温度与初始地温差值分别为4.7 ℃和14.7 ℃时,隧道仰拱结构温度升幅分别约为3.8 ℃和11.4 ℃,热致轴向应力分别为3.13 MPa和13.86 MPa,热致环向应力分别为2.85 MPa和9.93 MPa,隧道仰拱换热效率分别约为7.86 W?m^-1和24.15 W?m^-1; 单位温升条件下热致轴向应力和热致环向应力分别为0.44 MPa?℃^-1和0.35 MPa?℃^-1; 恒功率运行下仰拱基底能量桩换热效率随进口温度与初始地温差值的变化近乎为一条斜率k=4.1过原点的直线,换热效率维持在50～70 W?m^-1之间,与常规能量桩的换热效率规律基本一致; 桩基周围土体的力学性质受能量桩运行影响有限。

Abstract:

Based on Yima No.1 tunnel project of Yinchuan-Xi'an high-speed railway located in loess plateau, heat exchange tubes were buried in the tunnel invert and pile foundation, and energy tunnel invert-pile foundation combined heat pump system was built. The inlet and outlet water temperature, tunnel invert and pile foundation temperatures, thermal induced stress under difference inlet water temperature were measured. The heat transfer efficiency, the thermal response characteristics and change law of the tunnel invert and the soil surrounding energy pile were discussed and analyzed. The results show that in specific conditions on site, when inlet temperature and initial ground temperature difference are 4.7 ℃ and 14.7 ℃, respectively, the temperature of the tunnel invert structure rise about 3.8 ℃ and 11.4 ℃, the thermal induced axial stress are 3.13 MPa and 13.86 MPa, the thermal induced hoop stress are 2.85 MPa and 9.93 MPa, and the heat transfer efficiency of tunnel invert are 7.86 W?m^-1 and 24.15 W?m^-1. The unit thermal induced axial and hoop stress equal 0.44 MPa?℃^-1 and 0.35 MPa?℃^-1, respectively. Under constant power operation, the change of heat transfer efficiency of invert base energy pile with inlet temperature and initial ground temperature difference is almost a straight line with slope k=4.1 passing through the origin. The heat transfer efficiency maintained between 50-70 W?m^-1, which is similar with that of conventional energy pile. The mechanical properties of the soil around the pile foundation are limited by the operation of the energy pile.

参考文献/References:

[1] LOVERIDGE F,MCCARTNEY J S,NARSILIO G A,et al.Energy geostructures:a review of analysis approaches,in situ testing and model scale experiments[J].Geomechanics for Energy and the Environment,2020,22:100173.
[2]BARLA M,DI DONNA A,INSANA A.A novel real-scale experimental prototype of energy tunnel[J].Tunnelling and Underground Space Technology,2019,87:1-14.
[3]YAN J X.Development trends in world tunneling technology:safe,economical,green and artistic[J].Tunnel Construction,2021,41(5):693-696.
[4]FUKUHARA T,WATANABE H,NAKAMURA A.Horizontal U-tube road heating system using tunnel ground heat[J].Journal of Snow Engineering of Japan,2006,22(3):229-234.
[5]MA C J,DI DONNA A,DIAS D,et al.Thermo-hydraulic and sensitivity analyses on the thermal performance of energy tunnels[J].Energy and Buildings,2021,249:111206.
[6]FRODL S,FRANZIUS J N,BARTL T.Design and construction of the tunnel geothermal system in Jenbach[J].Geomechanics and Tunnelling,2010,3(5):658-668.
[7]LEE C H,PARK S W,WON J M,et al.Evaluation of thermal performance of energy textile installed in tunnel[J].Renewable Energy,2012,42:11-22.
[8]祝振南,郭红仙.地热利用型盾构法隧道施工探索——以清华园隧道能源管片设计、制作及安装为例[J].隧道建设(中英文),2019,39(4):677-683.
ZHU Zhennan,GUO hongxian.Exploration on construction of geothermal-utilized shield tunnels:a case study of fabrication and installation of tunnel energy segments in qinghuayuan tunnel[J].Tunnel Construction,2019,39(4):677-683.
[9]张国柱,夏才初,马绪光,等.寒区隧道地源热泵型供热系统岩土热响应试验[J].岩石力学与工程学报,2012,31(1):99-105.
ZHANG Guozhu,XIA Caichu,MA Xuguang,et al.Rock-soil thermal response test of tunnel heating system using heat pump in cold region[J].Chinese Journal of Rock Mechanics and Engineering,2012,31(1):99-105.
[10]马 康,程晓辉.能源隧道的温度应力有限元计算[J].防灾减灾工程学报,2017,37(4):571-576,585.
MA Kang,CHENG Xiaohui.Finite element calculation of thermal stress of energy tunnel[J].Journal of Disaster Prevention and Mitigation Engineering,2017,37(4):571-576,585.
[11]夏才初,邹一川,张国柱.寒区隧道地源热泵加热系统埋管间距优化分析[J].同济大学学报(自然科学版),2012,40(12):1802-1807.
XIA Caichu,ZOU Yichuan,ZHANG Guozhu.Pipe distance optimization of geothermal resource heat pump in cold region[J].Journal of Tongji University(Natural Science),2012,40(12):1802-1807.
[12]MA C J,DI DONNA A,DIAS D,et al.Numerical investigations of the tunnel environment effect on the performance of energy tunnels[J].Renewable Energy,2021,172:1279-1292.
[13]OGUNLEYE O,SINGH R M,CECINATO F,et al.Effect of intermittent operation on the thermal efficiency of energy tunnels under varying tunnel air temperature[J].Renewable Energy,2020,146:2646-2658.
[14]郭红仙,孟嘉伟,祝振南.能源隧道热响应试验数值分析与适用性评价[J].防灾减灾工程学报,2019,39(4):572-578.
GUO Hongxian,MENG Jiawei,ZHU Zhennan.Numerical analysis and applicability evaluation of thermal response test in energy tunnels[J].Journal of Disaster Prevention and Mitigation Engineering,2019,39(4):572-578.
[15]INSANA A,BARLA M.Experimental and numerical investigations on the energy performance of a thermo-active tunnel[J].Renewable Energy,2020,152:781-792.
[16]季伟伟,孔纲强,刘汉龙,等.软塑黄土地区隧道仰拱热力响应特性现场试验[J].岩土力学,2021,42(2):558-564.
JI Weiwei,KONG Gangqiang,LIU Hanlong,et al.Field tests on thermal response characteristics of the tunnel invert in soft plastic loess area[J].Rock and Soil Mechanics,2021,42(2):558-564.
[17]江强强,焦玉勇,骆 进,等.能源桩传热与承载特性研究现状及展望[J].岩土力学,2019,40(9):3351-3362,3372.
JIANG Qiangqiang,JIAO Yuyong,LUO Jin,et al.Review and prospect on heat transfer and bearing performance of energy piles[J].Rock and Soil Mechanics,2019,40(9):3351-3362,3372.
[18]党 政,关 文,程晓辉,等.CFG能源桩用于混凝土路面除冰降温的试验研究[J].中国公路学报,2019,32(2):19-30.
DANG Zheng,GUAN Wen,CHENG Xiaohui,et al.Experimental study on CFG energy pile for concrete pavement deicing and cooling[J].China Journal of Highway and Transport,2019,32(2):19-30.
[19]陆浩杰,吴 迪,孔纲强,等.循环温度作用下饱和黏土中摩擦型桩变形特性研究[J].工程力学,2020,37(5):156-165.
LU Haojie,WU Di,KONG Gangqiang,et al.Displacement characteristics of friction piles embedded in saturated clay subjected to thermal cycles[J].Engineering Mechanics,2020,37(5):156-165.
[20]李富远,王忠瑾,谢新宇,等.静钻根植能源桩承载特性模型试验研究[J].岩土力学,2020,41(10):3307-3316.
LI Fuyuan,WANG Zhongjin,XIE Xinyu,et al.Model test on bearing characteristic of static drill rooted energy pile[J].Rock and Soil Mechanics,2020,41(10):3307-3316.
[21]任连伟,任军洋,孔纲强,等.冷热循环下PHC能量桩热力响应和承载性能现场试验[J].岩土力学,2021,42(2):529-536,546.
REN Lianwei,REN Junyang,KONG Gangqiang,et al.Field tests on thermo-mechanical response and bearing capacity of PHC energy pile under cooling-heating cyclic temperature[J].Rock and Soil Mechanics,2021,42(2):529-536,546.
[22]费 康,朱志慧,石雨恒,等.能量桩群桩工作特性简化分析方法研究[J].岩土力学,2020,41(12):3889-3898.
FEI Kang,ZHU Zhihui,SHI Yuheng,et al.A simplified method for geotechnical analysis of energy pile groups[J].Rock and Soil Mechanics,2020,41(12):3889-3898.
[23]混凝土结构设计规范:GB 50010—2010[S].北京:中国建筑工业出版社,2011.
Code for design of concrete structures:GB 50010—2010[S].Beijing:China Architecture & Building Press,2011.
[24]孔纲强,吕志祥,孙智文,等.黏性土地基中摩擦型能量桩现场热响应试验[J].中国公路学报,2021,34(3):95-102.
KONG Gangqiang,LYU Zhixiang,SUN Zhiwen,et al.Thermal response testing of friction energy piles embedded in clay[J].China Journal of Highway and Transport,2021,34(3):95-102.
[25]BUHMANN P,MOORMANN C,WESTRICH B,et al.Tunnel geothermics — a German experience with renewable energy concepts in tunnel projects[J].Geomechanics for Energy and the Environment,2016,8:1-7.

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备注/Memo

备注/Memo:

收稿日期:2022-03-11
基金项目:中国铁路总公司科技研究开发计划项目(2017G007-G); 国家自然科学基金优秀青年科学基金项目(51922037); 江苏高校“青蓝工程”资助项目(2019)
作者简介:于 达(1997-),男,工学硕士研究生,E-mail:1006531027@qq.com。
通信作者:孔纲强(1982-),男,工学博士,教授,博士生导师,E-mail:gqkong1@163.com。

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更新日期/Last Update: 2023-05-20