A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Numerical Study on Flooding of Staircase Inside Subway Station
Over the past few years, heavy rainfall events exhibited an increasing trend worldwide, frequently resulting in flooding of subway stations. This is particularly concerning in China whose urban underground space is undergoing a rapid development. Once floodwater enters a subway station, it becomes rather difficult for passengers to find escape routes, as water flow can impede the crowd’s movement and damage power systems, ultimately hampering emergency response efforts. Based on these considerations, a series of numerical simulations were conducted to explore the flow patterns when floodwater flowed downwards along the staircase of the subway station. In this study, human legs were simplified as cylinders on staircase steps to capture the fluid-human interaction. Then, the effect of various locations of cylinders on human instability was investigated via multiple staircase models. The results indicated that the greatest moment to which human legs were subjected occurred on the downstream step, while the largest drag force appeared on the rest platform. The findings yielded from this study will be helpful references for designers and engineers to determine hazard mitigation and evacuation measures in case of subway station flooding.
Numerical Study on Flooding of Staircase Inside Subway Station
Over the past few years, heavy rainfall events exhibited an increasing trend worldwide, frequently resulting in flooding of subway stations. This is particularly concerning in China whose urban underground space is undergoing a rapid development. Once floodwater enters a subway station, it becomes rather difficult for passengers to find escape routes, as water flow can impede the crowd’s movement and damage power systems, ultimately hampering emergency response efforts. Based on these considerations, a series of numerical simulations were conducted to explore the flow patterns when floodwater flowed downwards along the staircase of the subway station. In this study, human legs were simplified as cylinders on staircase steps to capture the fluid-human interaction. Then, the effect of various locations of cylinders on human instability was investigated via multiple staircase models. The results indicated that the greatest moment to which human legs were subjected occurred on the downstream step, while the largest drag force appeared on the rest platform. The findings yielded from this study will be helpful references for designers and engineers to determine hazard mitigation and evacuation measures in case of subway station flooding.
Numerical Study on Flooding of Staircase Inside Subway Station
Lecture Notes in Civil Engineering
Wu, Wei (editor) / Leung, Chun Fai (editor) / Zhou, Yingxin (editor) / Li, Xiaozhao (editor) / Deng, Jia-Peng (author) / Tan, Yong (author) / Zhou, Yi-Tong (author) / Jiang, Wei-Zhen (author)
Conference of the Associated research Centers for the Urban Underground Space ; 2023 ; Boulevard, Singapore
2024-07-10
7 pages
Article/Chapter (Book)
Electronic Resource
English
Design and construction of a steep incline for entrance staircase of subway station
| British Library Conference Proceedings | 2001
| DataCite | 2016
| DataCite | 2016