4.7 Article

Full-scale fire tests in the underwater tunnel section model with sidewall smoke extraction

Related references

Note: Only part of the references are listed.
Article Construction & Building Technology

An intelligent tunnel firefighting system and small-scale demonstration

Xiqiang Wu et al.

Summary: A disastrous fire event in a confined tunnel poses a fatal hazard to trapped individuals and firefighters. To address this issue, an intelligent system and digital twin were proposed to collect, manage, process, and visualize tunnel fire information. The system, which achieved an overall accuracy of 98%, effectively identified fire size and location. Furthermore, it displayed a minimal time delay of approximately 1 second and maintained robustness even with damaged temperature sensors.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2022)

Article Engineering, Multidisciplinary

Smart Detection of Fire Source in Tunnel Based on the Numerical Database and Artificial Intelligence

Xiqiang Wu et al.

Summary: The study successfully applies artificial intelligence and big data to predict the location and size of tunnel fires in a numerical model, achieving an accuracy of 90% through training with temperature measurements from multiple sensors. Sensitivity analysis is conducted to optimize database configuration and sensor arrangement for fast and reliable fire prediction.

FIRE TECHNOLOGY (2021)

Article Construction & Building Technology

Perspectives of big experimental database and artificial intelligence in tunnel fire research

Xiaoning Zhang et al.

Summary: This study established a database containing tunnel fire experimental data, used machine learning to predict the critical ventilation velocity of tunnel fire, and provided new directions for future tunnel fire research.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2021)

Article Construction & Building Technology

Effects of altitude on smoke movement velocity and longitudinal temperature distribution in tunnel fires

Bin Liu et al.

Summary: The study investigates the effect of altitude on smoke movement velocity and longitudinal temperature distribution in tunnel fires through simulation experiments. It is found that smoke movement velocity is proportional to altitude and fire heat release rate. As altitude increases, smoke movement velocity and thermal convection with tunnel walls increase, leading to faster longitudinal temperature attenuation, which follows a distribution pattern of two exponential functions.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2021)

Article Construction & Building Technology

Smart performance-based design for building fire safety: Prediction of smoke motion via AI

Ling-chu Su et al.

Summary: This study introduced a smart framework for fire-engineering Performance-Based Design (PBD) using Artificial Intelligence (AI) to predict smoke motion and Available Safe Egress Time (ASET) in atrium fires. By training a CFD database with AI, the model can accurately predict smoke visibility profiles and ASET in a much shorter time compared to conventional methods, demonstrating the feasibility of using AI in fire safety design to reduce time and cost.

JOURNAL OF BUILDING ENGINEERING (2021)

Article Construction & Building Technology

Study on temperature decay characteristics of fire smoke backflow layer in tunnels with wide-shallow cross-section

Tianhang Zhang et al.

Summary: The study found that tunnel aspect ratio significantly influences the smoke temperature decay rate, with a higher aspect ratio leading to faster smoke temperature decay due to increased contact area between the smoke layer and ceiling. Additionally, increasing fire heat release rate reduces the smoke temperature decay rate, while longitudinal ventilation velocity increases the longitudinal temperature decay rate and decreases the transverse temperature decay rate. A new model considering the effects of aspect ratio, longitudinal ventilation velocity and fire heat release rate shows good applicability in full-scaled tunnel testing conditions.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2021)

Article Construction & Building Technology

The plug-holing of lateral mechanical exhaust in subway station: Phenomena, analysis, and numerical verification

Wei Zhong et al.

Summary: The study shows that increasing exhaust velocity can lead to plug-holing at the lateral exhaust vent, decreasing the effectiveness of smoke exhaust. Introducing a virtual smoke vent and proposing a critical Froude number can predict the occurrence of plug-holing in lateral mechanical exhaust systems.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2021)

Article Thermodynamics

Full-scale experimental study on fire under vehicle operations in a sloped tunnel

Yuxuan Yang et al.

INTERNATIONAL JOURNAL OF THERMAL SCIENCES (2020)

Article Construction & Building Technology

Use of mobile fans during tunnel fires

Lei Jiang et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2020)

Article Construction & Building Technology

Theoretical prediction model and full-scale experimental study of central smoke extraction with a uniform smoke rate in a tunnel fire

P. Xu et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2019)

Article Construction & Building Technology

The representation of evacuation movement in smoke-filled underground transportation systems

Karl Fridolf et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2019)

Article Thermodynamics

Study on the smoke stratification length under longitudinal ventilation in tunnel fires

Zhen Zeng et al.

INTERNATIONAL JOURNAL OF THERMAL SCIENCES (2018)

Article Construction & Building Technology

Study on induced airflow velocity of point smoke extraction in road tunnel fires

Xuepeng Jiang et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2018)

Article Construction & Building Technology

Critical velocity and backlayering distance in tunnel fires with longitudinal ventilation taking thermal properties of wall materials into consideration

Futoshi Tanaka et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2018)

Article Construction & Building Technology

Experimental studies on fire-induced temperature distribution below ceiling in a longitudinal ventilated metro tunnel

Shengzhong Zhao et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2018)

Article Construction & Building Technology

Effects of scale ratio and aspect ratio in predicting the longitudinal smoke-temperature distribution during a fire in a road tunnel with vertical shafts

Shota Takeuchi et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2018)

Article Construction & Building Technology

Full-scale immersed tunnel fire experimental research on smoke flow patterns

P. Xu et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2018)

Article Engineering, Multidisciplinary

Complementary Ventilation Design Method for a Highway Twin-Tunnel Based on the Compensation Concept

Lunlei Chai et al.

MATHEMATICAL PROBLEMS IN ENGINEERING (2018)

Article Engineering, Civil

Evacuation speed in full-scale darkened tunnel filled with smoke

Miho Seike et al.

FIRE SAFETY JOURNAL (2017)

Article Engineering, Civil

Effect of cross section on critical velocity in longitudinally ventilated tunnel fires

Ying Zhen Li et al.

FIRE SAFETY JOURNAL (2017)

Article Construction & Building Technology

Full-scale experiments on fire characteristics of road tunnel at high altitude

Zhi-guo Yan et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2017)

Proceedings Paper Construction & Building Technology

Full-scale experimental research on the effect of smoke exhaust strategies on efficiency of point extraction system in an underwater tunnel

Shuai Liu et al.

PROCEEDINGS OF 2ND INTERNATIONAL SYMPOSIUM ON SUBMERGED FLOATING TUNNELS AND UNDERWATER TUNNEL STRUCTURES (SUFTUS-2016) (2016)

Article Engineering, Civil

Runehamar tunnel fire tests

Haukur Ingason et al.

FIRE SAFETY JOURNAL (2015)

Article Construction & Building Technology

Experimental study on heat exhaust coefficient of transversal smoke extraction system in tunnel under fire

Liang Yi et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2015)

Article Engineering, Civil

Model scale tunnel fire tests with point extraction ventilation

Haukur Ingason et al.

JOURNAL OF FIRE PROTECTION ENGINEERING (2011)

Article Thermodynamics

Experimental study on buoyant flow stratification induced by a fire in a horizontal channel

D. Yang et al.

APPLIED THERMAL ENGINEERING (2010)

Article Engineering, Civil

Study of critical velocity and backlayering length in longitudinally ventilated tunnel fires

Ying Zhen Li et al.

FIRE SAFETY JOURNAL (2010)

Article Construction & Building Technology

Performance of the smoke extraction system for fires in the Busan-Geoje immersed tunnel

Eui Ju Lee et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2010)

Article Construction & Building Technology

Numerical study of the optimization of the pitch angle of an alternative jet fan in a longitudinal tunnel ventilation system

Vittorio Betta et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2009)

Article Thermodynamics

Studies on buoyancy-driven back-layering flow in tunnel fires

L. H. Hu et al.

EXPERIMENTAL THERMAL AND FLUID SCIENCE (2008)

Article Construction & Building Technology

A study on long tunnel smoke extraction strategies by numerical simulation

Chi-Ji Lin et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2008)

Article Construction & Building Technology

Experimental studies on fire-induced buoyant smoke temperature distribution along tunnel ceiling

L. H. Hu et al.

BUILDING AND ENVIRONMENT (2007)

Article Construction & Building Technology

Full-scale experimental studies on mechanical smoke exhaust efficiency in an underground corridor

L. H. Hu et al.

BUILDING AND ENVIRONMENT (2006)

Article Engineering, Civil

Pulsations during large-scale fire tests in the Runehamar tunnel

A Lönnermark et al.

FIRE SAFETY JOURNAL (2006)

Article Engineering, Civil

Heat release rates from heavy goods vehicle trailer fires in tunnels

H Ingason et al.

FIRE SAFETY JOURNAL (2005)

Article Engineering, Civil

Smoke extraction experiments in case of fire in a tunnel

O Vauquelin et al.

FIRE SAFETY JOURNAL (2002)

Article Engineering, Civil

Simple model for control of fire gases in a ventilated tunnel

JP Kunsch

FIRE SAFETY JOURNAL (2002)