海底隧道衬砌混凝土高温后性能试验研究

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摘要 To study the physical and mechanical properties of tunnel lining concrete under high temperature combustion, concrete specimens were developed by consulting the concrete proportioning in Xiangan subsea tunnel lining. After combusting the specimens under high temperature, two types of cooling methods were used, namely, natural cooling and water spraying. The thermal expansion and deformation characteristics, compressive strength, elastic modulus, and anti-permeability of concrete after high temperature were analyzed. Results were as follows:(1) Water spray cooling had a significant effect on the thermal expansion of concrete at high temperature, and natural cooling greatly influenced the elastic modulus and anti-permeability level. (2) If the axial strain was the same, then the transverse strain increased with the increase in temperature when the temperature was below 600℃. However, when the temperature was higher than 600℃, the transverse strain decreased with the increase in temperature. (3) With the increase in temperature, a linear relationship existed between the compressive strength of concrete and the temperature under natural cooling condition. However, under the water spray cooling condition, a nonlinear relationship was observed.

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	杨相如

关键词 ： tunnel engineering, high temperature concrete, experimental study, subsea tunnel lining, coefficient of thermal expansion

Abstract：To study the physical and mechanical properties of tunnel lining concrete under high temperature combustion, concrete specimens were developed by consulting the concrete proportioning in Xiangan subsea tunnel lining. After combusting the specimens under high temperature, two types of cooling methods were used, namely, natural cooling and water spraying. The thermal expansion and deformation characteristics, compressive strength, elastic modulus, and anti-permeability of concrete after high temperature were analyzed. Results were as follows:(1) Water spray cooling had a significant effect on the thermal expansion of concrete at high temperature, and natural cooling greatly influenced the elastic modulus and anti-permeability level. (2) If the axial strain was the same, then the transverse strain increased with the increase in temperature when the temperature was below 600℃. However, when the temperature was higher than 600℃, the transverse strain decreased with the increase in temperature. (3) With the increase in temperature, a linear relationship existed between the compressive strength of concrete and the temperature under natural cooling condition. However, under the water spray cooling condition, a nonlinear relationship was observed.

Key words： tunnel engineering high temperature concrete experimental study subsea tunnel lining coefficient of thermal expansion

收稿日期: 2017-07-17

基金资助:Supported by Fujian Transportation Science and Technology Key Project (No.201306), and Fujian Middle and Young Teacher Education Research Project (No.JA15666)

通讯作者: YANG Xiang-ru E-mail: xiangruy@126.com

引用本文:

杨相如. 海底隧道衬砌混凝土高温后性能试验研究[J]. Journal of Highway and Transportation Research and Development, 2018, 12(3): 53-59.
YANG Xiang-ru. High Temperature Performance of Lining Concrete for Subsea Tunnel. Journal of Highway and Transportation Research and Development, 2018, 12(3): 53-59.

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http://manu27.magtech.com.cn/Jwk_gljtkj_en/CN/ 或 http://manu27.magtech.com.cn/Jwk_gljtkj_en/CN/Y2018/V12/I3/53

[1] ZHAO Xu-feng, WANG Chun-miao. Dynamic ConstructionMechanics Analysis of Xiamen Subsea Tunnel in Terrestrial Shallow Section[J]. Chinese Journal of Underground Space and Engineering, 2009,5(4):769-775. (in Chinese)
[2] WANG Meng-shu, TAN Zhong-sheng. Some Thoughts on the Plan of Taiwan Strait Crossing[C]//The Ten Session of the Symposium on Cross Strait Bridge and Tunnel Engineering in Channel. Fuzhou[s.n.], 2014:45-56. (in Chinese)
[3] ZHOU Xiang-chuan. Study on Fire Test and Anti Fire Performance of Lining Structure in the Field of Super Long Highway Ttunnel[D].Changsha:Central South University,2011.(in Chinese)
[4] HARMATHY T Z. Thermal Properties of Concrete at Elevated Temperatures[J]. Journal of Materials,1970,5(1):53-68.
[5] LU Zhou-dao. Study on Fire Response of Reinforced Concrete Beams[D]. Shanghai:Tongji University, 1989.(in Chinese)
[6] LI Wei, GUO Zhen-hai. Deformation Test and Constitutive Relation of Concrete under Different Stress Temperature Paths[J]. China Civil Engineering Journal,1993,(5):58-69. (in Chinese)
[7] LIU qi-wei, WANG Cheng-ming, LUO Wen-lin. Simulation Analysis and Evaluation of Prestressed Concrete Hollow Slab Girder Subjected to Fire Disaster[J]. Journal of Highway and Transportation Research and Development, 2013, 30(12):59-68. (in Chinese)
[8] WANG Hai-long, YU Qiu-jia, SUN Xiao-yan, et al. Durability and Damage Evaluation of Concrete Subjected to High Temperature[J]. Journal of Jiangsu University:Natural Science Edition, 2014, 35(2):238-242. (in Chinese)
[9] CHEN yin-zhen, XU Zhao-feng. Statistical Analysis on the Strength of Concrete After High Temperature (Fire)[J]. Concrete and Cement Products, 2016(9):1-5. (in Chinese)
[10] JIN Bao, HUO Jing-si. High Temperature Damage Mechanism of Compressive Strength of Calcareous Aggregate Concrete[J]. Journal of Building Materials, 2016, 19(2):359-363. (in Chinese)
[11] GUO QIANG, WU Shou-jun, ZHANG Bo. Study on Mechanical Properties and Microstructure of Concrete after High Temperature[J]. China Rural Water Conservancy and Hydropower, 2016(7):168-170. (in Chinese)
[12] JIA Fu-ping, WANG Yong-chun, QU Yan-yan, et al. Influences of Various Cooling Methods and Standing Time on Residual Strength of Concrete after Elevated Temperature Exposure[J]. Journal of Building Materials, 2011, 14(3):400-405. (in Chinese)
[13] LIN Zhi, GUO Jun, LI Qiang. Rules of Physical and Mechanical Damages of High Temperature of Fire to Lining Concrete in Highway Tunnels[J]. Technology of Highway and Transport, 2012(6):92-96(in Chinese)
[14] YAN Qian-qian, TIAN B, XIE Jin-de. Effect of Moisture Content and Fiber on High-temperature Property of Tunnel Second Lining Concrete[J]. Journal of Highway and Transportation Research and Development, 2015,32(4):102-107. (in Chinese)
[15] LIN Zuo-lei, ZHAI Shou-xin.Xiamen-Xiang'an Subsea Tunnel Construction Key Technology Series-key Technical Points of Construction[M].Beijing:People Traffic Press,2011.(in Chinese)
[16] JT S202-2011. Code for Constraction of Concrete for Waterway Engineering[S]. (in Chinese)
[17] BAO Zhi-ming, ZHANG Xian-zhong. Research and Prospect of Automatic Fire Extinguish System in Road Tunnel[J]. Industrial Safety and Environmental Protection, 2016, 42(8):28-31(in Chinese)
[18] LI Ling-zhi. Relationship between Mechanical Properties and Temperature and Time of Concrete after Fire[D]. Shanghai:Tongji University, 2006.(in Chinese)
[19] BS EN 1992-1-2-2004,Eurocode 2:Design of Concrete Structures[S].