Distribution rules and key features for the lining surface temperature of road tunnels in cold regions

Wu, Yimin; Xu, Peng; Li, Wenbo; Wang, Zijian; Cai, Zhiyan; Shao, Shuai

doi:10.1016/j.coldregions.2019.102979

Cited by 17 publications

(6 citation statements)

References 8 publications

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“…In fact, the OSRP and the FHF are coupled acting on the lining support, we can't easily distinguish them. Even though, many researches about field measurement have been done to understand the change law of the tunnel temperature (Kozlowski, 2009;Tan et al, 2014;Zhou et al, 2016;Jun et al, 2017;Li et al, 2017;Xing et al, 2017;Zeng et al, 2017;Zhang G et al, 2017;Zhao et al, 2019;Wu et al, 2020). Jun et al (2017) measured the temperature of the air inside the tunnel, the road pavement, and the lining surfaces of a total of 104 surveyed tunnels, then he analyzed the statistical law of data.…”

Section: Introductionmentioning

confidence: 99%

Investigation About Variation Law of Frost Heave Force of Seasonal Cold Region Tunnels: A Case Study

Zhang

Fan

Yang³

et al. 2022

Front. Earth Sci.

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The frost heave force (FHF) is one of the most important reason of inducing freezing damages of tunnel in seasonal frozen regions. Analyzing the change law of FHF is helpful to design for avoiding freezing damages in the tunnel lining. Field measurement is an approved method used in mechanical analysis of tunnel lining, however, it is difficult to measure the FHF directly, which is changed coupled with the original surrounding rock pressure (OSRP). In this paper, in order to clarifying the change law of the FHF, a new measuring method was presented. The best advantage of this method is that the FHF could be separated from the OSRP by measuring the surrounding rock temperature and the lining pressure at the same time. A lot of field measurement work about the FHF was conducted based on Jichoushan tunnel and the change law of the FHF was analyzed using the presented method. The results can provide preference for the antifreeze design of tunnel in seasonal cold regions.

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Section: Introductionmentioning

confidence: 99%

Investigation About Variation Law of Frost Heave Force of Seasonal Cold Region Tunnels: A Case Study

Zhang

Fan

Yang³

et al. 2022

Front. Earth Sci.

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“…Using the parameter values in Section 4.1, the value range of air curtain jet angle is set to be 0 °-50 °, and each 5 °is a variation interval. e relationship between jet angle and jet velocity is calculated according to formula (10), as listed in Table 3.…”

Section: Optimal Selection Of Air Curtain Jet Angle According Tomentioning

confidence: 99%

“…e results showed that the temperature at the depth of the tunnel is asymmetrically distributed due to the thermal potential difference caused by the elevation difference between the inlet and outlet of the tunnel, and the temperature at the low altitude is lower. Wu et al [10] selected three tunnels in the Wushaoling tunnel group and continuously monitored 31 temperature test points for 5 500 hours. e measurement data found that the longitudinal temperature distribution curve of the tunnel was a parabola with a low inlet and outlet and high middle, which provided a reference basis for tunnel cold protection engineering.…”

Section: Introductionmentioning

confidence: 99%

Research on the Changing Law of Tunnel Temperature Field and the Application of Air Curtain System in Cold Regions

Wang

Zhu

Gao

et al. 2022

Advances in Materials Science and Engineering

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In this study, a tunnel temperature field model test bed is built according to the similarity principle to study the variation law of temperature in the tunnel in the cold season. According to the variation law of temperature in the tunnel, a new active thermal insulation measure, namely, an air curtain system, is developed. According to the principle of flow function superposition and heat balance, the governing equation of air curtain system is obtained. Taking the Zhengpantai tunnel as an example, the feasibility of the air curtain system is verified, and the jet angle of air curtain is optimized. The research results show that outside temperature and surrounding rock temperature are the main factors affecting the temperature field of tunnels in cold regions. The calculation results show that the air curtain system can effectively prevent tunnel freezing damage. The optimal jet angle of air curtain system should be 30°–40°. When the outside temperature is extremely low, multiple air curtains can be used in series to heat the temperature in the tunnel, and it is recommended that the distance between the two air curtains is not less than 20 m.

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“…These studies are used to guide antifreeze measures for tunnels, but there are still problems including: (1) Most of the previous research took a specific project in the cold regions as the research object and put forward targeted antifreeze measures. This method has obvious limitations due to the influence of different geological conditions on different tunnel projects [8,[11][12][13][14][15][16][17][18]. (2) When analyzing the causes of freezing damage, these studies were mainly based on the existing engineering experience and lacked quantitative evaluation of the impact of various factors on the extent of freezing damage, which resulted in a significant limitation when they were used to guide the construction of other engineering projects [19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Freezing Damage to Tunnels in Cold Regions and Weights of Influencing Factors

Shen

Dong

et al. 2022

Sustainability

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Concrete materials are widely used in tunnel engineering. In China, the cold regions have gradually become the main area for highway and railway construction. Affected by high altitude, low temperature, turbulent wind, and other conditions, freezing damage, such as tunnel icing, occurs in concrete materials, which seriously affects the quality and operational safety of tunnels in cold regions. Therefore, it is necessary to carry out a quantitative analysis of various factors affecting freezing damage to protect concrete materials in tunnels. This paper summarizes various freezing damage phenomena in tunnels in cold regions and divides them into three types: water seepage and hanging ice type freezing damage, lining interface type freezing damage, and tunnel foundation ice accumulation type freezing damage. Based on the qualitative evaluation of each factor, the affiliation of each factor was divided. Then, the influence weight of each factor on freezing damage was obtained through the analytic hierarchy process, and then each factor was ranked. This study is helpful to the selection of anti-freezing measures for tunnels in cold regions.

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Distribution rules and key features for the lining surface temperature of road tunnels in cold regions

Cited by 17 publications

References 8 publications

Investigation About Variation Law of Frost Heave Force of Seasonal Cold Region Tunnels: A Case Study

Investigation About Variation Law of Frost Heave Force of Seasonal Cold Region Tunnels: A Case Study

Research on the Changing Law of Tunnel Temperature Field and the Application of Air Curtain System in Cold Regions

Freezing Damage to Tunnels in Cold Regions and Weights of Influencing Factors

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