Criterion and Its Application for Safety Evacuation During Underground Flooding

Onishi, Yoshizumi; Ishigaki, Taisuke; Baba, Yasuyuki; Toda, Keiichi

doi:10.2208/prohe.52.841

Cited by 9 publications

(2 citation statements)

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“…Evacuation from an underground space during a flood disaster has been investigated by using a similar-scale or real-size model of a staircase (Ishigaki et al 2006). From previous work, the specific force per unit width (M) is a reasonable criterion for safe evacuation through flooded stairs (Onishi et al 2008), which is:…”

Section: Numerical Assessment Modelmentioning

confidence: 99%

Numerical assessment of the water-flow hazard to workers in the water disaster of underground mine

Yao

Zhao

et al. 2021

Journal of Hydroinformatics

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Understanding the details of the water-flow hazard (WH) to workers in water disasters is extremely important in disaster-risk management. This paper aims to develop a numerical assessment model for the WH affecting worker safety. An assessment model of WH is proposed for water disasters in the underground mine, which includes two characteristics: (a) from water-disaster environment to WH of workers and (b) from multiple influencing factors to quantitative comprehensive quantification. To verify the feasibility of WH, it is applied to a water disaster in an underground coal mine. The simulation results highlight that the WH model can assess the hazard value of worker-1 (m = 72 kg, H = 1.72 m) at paragraph – 6134 and paragraph – 8840 of roadway, with different water-flow conditions, in the whole time of the disaster. Meanwhile, the differences between WH for three workers, worker-1, worker-2 (m = 95 kg, H = 1.82 m), and worker-3 (m = 60 kg, H = 1.62 m), under the same flow conditions are provided by the curve. Moreover, dynamic visualization of WH is achieved, which shows how the hazard of worker-1 changes into the time of 2, 5, 11, 19, and 27 h after a disaster in the full mine. Therefore, this numerical assessment can be used to evaluate the hazards posed by water flow to workers, which meets the urgent demands of water-disaster management for underground mines.

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Section: Numerical Assessment Modelmentioning

confidence: 99%

Numerical assessment of the water-flow hazard to workers in the water disaster of underground mine

Yao

Zhao

et al. 2021

Journal of Hydroinformatics

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“…Onishi et al 2008Onishi et al ) -10.2208 This study added evacuation experience to the existing experiment contents from previous research and added conditions such as waterfilled condition by wearing This study indicates that by applying the evaluation index using a specific force to calculate flooding extent and characteristics, the magnitude of the evacuation difficulty at each point can be accurately assessed. an innovative numerical model to a flood flow in a small underground space, supporting the model by contrasting the calculated data with the experimental outcomes…”

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confidence: 99%

A review of flood impact assessment approaches for underground infrastructures in urban areas: a focus on transport systems

Forero-Ortiz

Martínez‐Gomariz

Porcuna

2020

Hydrological Sciences Journal

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A review of flood impact assessment approaches for underground infrastructures in urban areas: A focus on transport systems.Flooding events can produce significant disturbances in underground transport systems within urban areas and lead to economic and socioenvironmental wellknown consequences, which can be worsened by variations in the occurrence of weather and climate extremes. A better comprehension of these impacts and their conditions is consequently needed. Hence, this paper presents a state-of-the-art literature review on flood impact assessment in metro systems, analysing their purposes and their shortcomings. This document shows the adaptation measures dealing with specific classes of pluvial flood damages, besides identifying prospective paths towards the application of suitable actions facing actual and projected hazards in metro systems worldwide.

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