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Fuchun River navigable tunnel fire explosion escape evacuation and structural safety

Author: LiWeiPing
Tutor: XuZhiSheng；WuDeXing
School: Central South University
Course: Architecture and Civil Engineering
Keywords: Navigable tunnel Fire and explosion Escape evacuation
CLC: U458
Type: Master's thesis
Year: 2009
Downloads: 79
Quote: 0
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Abstract


The Fuchunjiang qililong Channel power plant dam barrier, so the planning and construction of the waterway navigable tunnel to meet the requirements of navigation. Large-scale view of the navigable tunnel (navigable clear width 20m navigable clear height of 7m, navigable depth 3.5m), there is no precedent domestic and abroad there is no corresponding can refer to design standards. Especially for escape evacuation and structural safety of navigable tunnel fire explosion, worth learning experience. Characteristics of the tunnel, to carry out the explosion on waterways navigable tunnel fire escape evacuation and structural safety studies, the main contents and conclusions are as follows: (1) a set of evacuation routes, including horizontal contact channel, vertical escape routes, the upper and lower interoperability escape and evacuation routes. According to the characteristics of the tunnel, considering the safety and economic factors, and recommended sidewalks escape tunnel longitudinal way. (2) to study the spread of fire and smoke within the tunnel rule, turn on the dome temperature and ventilation measures in the tunnel fire conditions discussed, studies have shown that: load is generally not the tunnel, while the ship fire load, fire high temperatures can damage the tunnel lining, the event of a fire, on the one hand to control the fire size to reduce the power of the fire the fire source, on the other hand to take ventilation measures to reduce the maximum temperature and average flue gas temperature at the top of tunnel near the fire source. (3) personnel escape evacuation studies tunnel fire explosion, explore the tunnel fire safety management methods, findings: when the fire broke out, the tunnel load less, do not set the auxiliary escape tunnels can also be safely evacuated, it is recommended that no auxiliary escape tunnel escape platform 1.5m wide; tanker fire is likely to cause an explosion, fire suits and other equipment in order to ensure the safety of the personnel on board configuration to meet the tanker personnel when the dangerous state of the human body protection and self-help. (4) to explore the impact of the fire and explosion on the carrying capacity of the tunnel lining, it is recommended that the strengthening of the dome in the high temperatures of fire protection, especially for the cross-section of the span is too large lining, to improve the fire resistance of concrete and reduce fire lining concrete structures impact, and to avoid the fire from the fire, the fire control, fire-resistant aspects to take corresponding measures. (5) from the cracks in the concrete carbonation corrosive environment of the tunnel structure durability analysis, it is recommended to improve the durability of the lining structure from the lining structure design, the durability of concrete materials and structure facilities for anti-carbonation isolation protection layer. The content and results of this study can provide a reference for the preliminary design and construction of the building of the the Fuchunjiang qililong navigable tunnel explosion similar navigable tunnel fire personnel escape evacuation and structural safety is also of great significance.

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CLC: > Transportation > Road transport > Tunnel project > Tunnel safety and accident
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