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journal article·2026-01

Subcritical Velocity to Maintain the Fire-Induced Smoke Stratification in Tunnels During Construction Under Press-in Ventilation

Junhao Yu, Shengzhong Zhao, Tiantian Xu, Fei Wang, Zhaoyi Zhuang, Lin Xu, Wenjun Lei, Imad Obadi

Fire Technology· Volume 62· Issue 1
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OpenAlex topics: Fire dynamics and safety research · Evacuation and Crowd Dynamics · Fire effects on ecosystems

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References (48)

Show source-provided references
1. Xu L, Qiu MX, Zhao YH, Ding C, Yu W, Zhao SZ, Li LY, Liu J (2023) Experimental study on vertical temperature distribution of the two-layer smoke flow in tunnel during construction. Tunn Undergr Space Technol 136:105105. https://doi.org/10.1016/j.tust.2023.10510510.1016/j.tust.2023.105105 ↗
2. Vlasov SN, Makovsky LV, Merkin VE (2001) Accidents in transportation and subway tunnels: construction to operation. Elex-KM
3. Sousa RL, Einstein HH (2021) Lessons from accidents during tunnel construction. Tunn Undergr Space Technol 113:103916. https://doi.org/10.1016/j.tust.2021.10391610.1016/j.tust.2021.103916 ↗
4. Zhu YM, Zhou JJ, Zhang B, Wang HC, Huang MQ (2022) Statistical analysis of major tunnel construction accidents in China from 2010 to 2020. Tunn Undergr Space Technol 124:104460. https://doi.org/10.1016/j.tust.2022.10446010.1016/j.tust.2022.104460 ↗
5. Yao YZ, Wang R, Xia ZY, Ren F, Zhao JL, Zhu HQ, Cheng XD (2022) Numerical study of the characteristics of smoke spread in tunnel fires during construction and method for improvement of smoke control. Case Stud Therm Eng 34:102043. https://doi.org/10.1016/j.csite.2022.10204310.1016/j.csite.2022.102043 ↗
6. Yang D, Huo R, Zhang XL, Zhu S, Zhao XY (2012) Comparative study on carbon monoxide stratification and thermal stratification in a horizontal channel fire. Build Environ 49:1–8. https://doi.org/10.1016/j.buildenv.2011.09.00910.1016/j.buildenv.2011.09.009 ↗
7. Zhou YT, Tang F, Zhao ZX, Wang Q (2022) Effect of lateral smoke extraction on transverse temperature distribution and smoke maximum temperature under ceiling in tunnel fires. J Therm Anal Calorim 147:4275–4284. https://doi.org/10.1007/s10973-021-10814-210.1007/s10973-021-10814-2 ↗
8. Zhao SZ, Yang HR, Li YZ, Ingason H, Liu F (2023) Theoretical and numerical study on smoke descent during tunnel fires under natural ventilation condition. Tunn Undergr Space Technol 142:105414. https://doi.org/10.1016/j.tust.2023.10541410.1016/j.tust.2023.105414 ↗
9. Yao YZ, Li YZ, Lönnermark A, Ingason H, Cheng XD (2019) Study of tunnel fires during construction using a model scale tunnel. Tunn Undergr Space Technol 89:50–67. https://doi.org/10.1016/j.tust.2019.03.01710.1016/j.tust.2019.03.017 ↗
10. Xue QQ, Nie W, Guo LD, Liu Q, Hua Y, Sun N, Liu CY, Niu WJ (2022) Determining the optimal airflow rate to minimize air pollution in tunnels. Process Saf Environ 157:115–130. https://doi.org/10.1016/j.psep.2021.10.03910.1016/j.psep.2021.10.039 ↗
11. Chen X, Zhou XH, Zhong ZL, Liang NH, Wang Y, Zhang XY (2023) Study on temperature field and influencing factors of the high geothermal tunnel with extra-long one-end construction ventilation. Int J Therm Sci 191:108322. https://doi.org/10.1016/j.ijthermalsci.2023.10832210.1016/j.ijthermalsci.2023.108322 ↗
12. Li YZ, Lei B, Ingason H (2010) Study of critical velocity and backlayering length in longitudinally ventilated tunnel fires. Fire Saf J 45(6–8):361–370. https://doi.org/10.1016/j.firesaf.2010.07.00310.1016/j.firesaf.2010.07.003 ↗
13. Weng MC, Lu XL, Liu F, Shi XP, Yu LX (2015) Prediction of backlayering length and critical velocity in metro tunnel fires. Tunn Undergr Space Technol 47:64–72. https://doi.org/10.1016/j.tust.2014.12.01010.1016/j.tust.2014.12.010 ↗
14. Weng MC, Lu XL, Liu F, Du CX (2016) Study on the critical velocity in a sloping tunnel fire under longitudinal ventilation. Appl Therm Eng 94:422–434. https://doi.org/10.1016/j.applthermaleng.2015.10.05910.1016/j.applthermaleng.2015.10.059 ↗
15. Zhang SG, Cheng XD, Yao YZ, Zhu K, Li KY, Lu S, Zhang RF, Zhang HP (2016) An experimental investigation on blockage effect of metro train on the smoke back-layering in subway tunnel fires. Appl Therm Eng 99:214–223. https://doi.org/10.1016/j.applthermaleng.2015.12.08510.1016/j.applthermaleng.2015.12.085 ↗
16. Li YZ, Ingason H (2017) Effect of cross section on critical velocity in longitudinally ventilated tunnel fires. Fire Saf J 91:303–311. https://doi.org/10.1016/j.firesaf.2017.03.06910.1016/j.firesaf.2017.03.069 ↗
17. Li J, Li YF, Cheng CH, Chow WK (2019) A study on the effects of the slope on the critical velocity for longitudinal ventilation in Tilted tunnels. Tunn Undergr Space Technol 89:262–267. https://doi.org/10.1016/j.tust.2019.04.01510.1016/j.tust.2019.04.015 ↗
18. Chow WK, Gao Y, Zhao JH, Dang JF, Chow CL, Miao L (2015) Smoke movement in Tilted tunnel fires with longitudinal ventilation. Fire Saf J 75:14–22. https://doi.org/10.1016/j.firesaf.2015.04.00110.1016/j.firesaf.2015.04.001 ↗
19. Guo YH, Yuan ZY, Yuan YP, Cao XL, Zhao P (2021) Numerical simulation of smoke stratification in tunnel fires under longitudinal velocities. Undergr Space 6:163–172. https://doi.org/10.1016/j.undsp.2019.11.00110.1016/j.undsp.2019.11.001 ↗
20. Peng M, Zhang SG, Yang H, He K, Cong W, Cheng XD, Yuen R, Zhang HP (2020) Experimental study on confinement velocity in tunnel fires with longitudinal ventilation. J Wind Eng Ind Aerodyn 201:104157. https://doi.org/10.1016/j.jweia.2020.10415710.1016/j.jweia.2020.104157 ↗
21. Zeng Z, Xiong K, Lu XL, Weng MC, Liu F (2018) Study on the smoke stratification length under longitudinal ventilation in tunnel fires. Int J Therm Sci 132:285–295. https://doi.org/10.1016/j.ijthermalsci.2018.05.03810.1016/j.ijthermalsci.2018.05.038 ↗
22. Emmons H (1977) The home fire viewed as a scientific system. Society of Fire Protection Engineers SFPE Annual Seminar, pp 77–85
23. Tang F, Li LJ, Dong MS, Wang Q, Mei FZ, Hu LH (2017) Characterization of buoyant flow stratification behaviors by Richardson (Froude) number in a tunnel fire with complex combination of longitudinal ventilation and ceiling extraction. Appl Therm Eng 110:1021–1028. https://doi.org/10.1016/j.applthermaleng.2016.08.22410.1016/j.applthermaleng.2016.08.224 ↗
24. Zhao SZ, Li YZ, Ingason H, Liu F (2019) A theoretical and experimental study on the buoyancy-driven smoke flow in a tunnel with vertical shafts. Int J Therm Sci 141:33–46. https://doi.org/10.1016/j.ijthermalsci.2019.03.02110.1016/j.ijthermalsci.2019.03.021 ↗
25. Guo QH, Li YZ, Ingason H, Yan ZG, Zhu HH (2023) Numerical study on thermally driven smoke flow characteristics in long tunnels under natural ventilation. Int J Therm Sci 192:108379. https://doi.org/10.1016/j.ijthermalsci.2023.10837910.1016/j.ijthermalsci.2023.108379 ↗
26. Zhao SZ, Gao HX, Xu TT, Wang F, Obadi I, Xu L, Yu JH, Liu MZ (2024) The influence of cross-sectional aspect ratio on ceiling temperature profile and mass flow rate of ceiling jet in tunnel fires. Fire Mater. https://doi.org/10.1002/fam.322310.1002/fam.3223 ↗
27. Wang JH, Fang Z, Tang Z, Yuan JP (2021) Influence of longitudinal ventilation on the mass flow rate distribution of fire smoke flow in tunnels. Tunn Undergr Space Technol 112:103938. https://doi.org/10.1016/j.tust.2021.10393810.1016/j.tust.2021.103938 ↗
28. Ji J, Guo FY, Gao ZH, Zhu JP (2018) Effects of ambient pressure on transport characteristics of thermal-driven smoke flow in a tunnel. Int J Therm Sci 125:210–217. https://doi.org/10.1016/j.ijthermalsci.2017.11.02710.1016/j.ijthermalsci.2017.11.027 ↗
29. Yao YZ, Zhang SG, Shi L, Cheng XD (2019) Effects of shaft inclination angle on the capacity of smoke exhaust under tunnel fire. Indoor Built Environ 28(1):77–87. https://doi.org/10.1177/1420326X1773490610.1177/1420326X17734906 ↗
30. Yu LX, Chen YN, Chen S, Zhang YX, Zhang H, Liu CX Numerical analysis of the performance of a PID-controlled air curtain for fire-induced smoke confinement in a tunnel configuration. Fire Saf J 141: 103930. https://doi.org/10.1016/j.firesaf.2023.10393010.1016/j.firesaf.2023.103930 ↗
31. Huang P, Ye SL, Xie JX, Chen M, Liu CX, Yu LX (2023) Study on the maximum and longitudinal distribution of ceiling gas temperature in a naturally ventilated tunnel: the effect of longitudinal fire location. Int J Therm Sci 185:108037. https://doi.org/10.1016/j.ijthermalsci.2022.10803710.1016/j.ijthermalsci.2022.108037 ↗
32. Gannouni S, Zinoubi J, Ben Maad R (2019) Numerical study on the thermal buoyant flow stratification in tunnel fires with longitudinal imposed airflow: effect of an upstream blockage. Int J Therm Sci 136:230–242. https://doi.org/10.1016/j.ijthermalsci.2018.10.04110.1016/j.ijthermalsci.2018.10.041 ↗
33. Zhao SZ, Yu JH, Xu L, Xu TT, Wang F, Obadi I, Xu L, Lei WJ (2024) The effects of single-point extraction on smoke diffusion length and ceiling temperature distribution in a tunnel with one closed end. Int J Therm Sci 200:108950. https://doi.org/10.1016/j.ijthermalsci.2024.10895010.1016/j.ijthermalsci.2024.108950 ↗
34. Newman JS (1984) Experimental evaluation of fire-induced stratification. Combust Flam 57(1):33–39. https://doi.org/10.1016/0010-2180(84)90135-410.1016/0010-2180(84)90135-4 ↗
35. Fan CG, Ji J, Wang W, Sun JH (2014) Effects of vertical shaft arrangement on natural ventilation performance during tunnel fires. Int J Heat Mass Transf 73:158–169. https://doi.org/10.1016/j.ijheatmasstransfer.2014.02.00310.1016/j.ijheatmasstransfer.2014.02.003 ↗
36. Ji J, Wan HX, Li KY, Han JY, Sun JH (2015) A numerical study on upstream maximum temperature in inclined urban road tunnel fires. Int J Heat Mass Transf 88:516–526. https://doi.org/10.1016/j.ijheatmasstransfer.2015.05.00210.1016/j.ijheatmasstransfer.2015.05.002 ↗
37. Zhao SZ, Liu F, Wang F, Weng MC, Zeng Z (2018) A numerical study on smoke movement in a metro tunnel with a non-axisymmetric cross-section. Tunn Undergr Space Technol 73:187–202. https://doi.org/10.1016/j.tust.2017.12.00210.1016/j.tust.2017.12.002 ↗
38. Mcgrattan K, Hostikka S, McDermott R, Floyd J, Weinschenk C, Overholt K (2013) Fire dynamics simulator technical reference guide volume 1: mathematical model, 1018(1), 175. https://doi.org/10.6028/NIST.SP.1018E610.6028/NIST.SP.1018E6 ↗
39. Yu LX, Lei XW, Huang P, Liu CX, Zhang H, Yang FQ (2024) Study on the combination effect of tunnel slope and longitudinal fire location on the asymmetric flow fields in a naturally ventilated tunnel. Tunn Undergr Space Technol 146:105623. https://doi.org/10.1016/j.tust.2024.10562310.1016/j.tust.2024.105623 ↗
40. Zhao SZ, Xu L, Obadi I, Wang F, Liu F, Weng MC (2021) Plug-holing height and complete plug-holing phenomenon in naturally ventilated tunnel fires with vertical shaft. Tunn Undergr Space Technol 107:103631. https://doi.org/10.1016/j.tust.2020.10363110.1016/j.tust.2020.103631 ↗
41. Hanna SR (1989) Confidence limits for air quality model evaluations, as estimated by bootstrap and jackknife resampling methods. Atmos Environ 23(6):1385–1398. https://doi.org/10.1016/0004-6981(89)90161-310.1016/0004-6981(89)90161-3 ↗
42. Chang JC, Hanna SR (2004) Air quality model performance evaluation. Meteorol Atmos Phys 87(1–3):167–196. https://doi.org/10.1007/s00703-003-0070-710.1007/s00703-003-0070-7 ↗
43. Hanna S, Chang J (2012) Acceptance criteria for urban dispersion model evaluation. Meteorol Atmos Phys 116:133–146. https://doi.org/10.1007/s00703-011-0177-110.1007/s00703-011-0177-1 ↗
44. Janssens M, Tran HC (1992) Data reduction of room tests for zone model validation. J Fire Sci 10(6):528–555. https://doi.org/10.1177/07349041920100060410.1177/073490419201000604 ↗
45. Tilley N, Rauwoens P, Merci B (2011) Verification of the accuracy of CFD simulations in small-scale tunnel and atrium fire configurations. Fire Saf J 46(4):186–193. https://doi.org/10.1016/j.firesaf.2011.01.00710.1016/j.firesaf.2011.01.007 ↗
46. Xu QK, Yang LZ, Ding YC (2013) Experimental study on the thermal stratification during the quasi-steady region of the fire flow field in a small-scale corridor model. J Appl Fire Sci 23:551–568. https://doi.org/10.2190/AF.23.4.l10.2190/AF.23.4.l ↗
47. Oka Y, Atkinson GT (1995) Control of smoke flow in tunnel fires. Fire Saf J 25:305–322. https://doi.org/10.1016/0379-7112(96)00007-010.1016/0379-7112(96)00007-0 ↗
48. Wu Y, Bakar MZA (2000) Control of smoke flow in tunnel fires using longitudinal ventilation systems – a study of the critical velocity. Fire Saf J 35(4):363–390. https://doi.org/10.1016/S0379-7112(00)00031-X10.1016/S0379-7112(00)00031-X ↗