基于事故树的布达拉宫雷击火灾风险分析与保护

发布时间：2018-05-16 16:41

本文选题：布达拉宫 + 雷电　；参考：《文物保护与考古科学》2017年05期

【摘要】：布达拉宫自兴建以来曾遭受多次不同程度雷击,一旦雷击引发火灾会造成不可挽回的损失,因此需要进行科学合理的雷击火灾分析以有效指导布达拉宫减灾工作。对于布达拉宫雷电可能引起火灾的风险,建立布达拉宫雷击火灾事故树,综合考虑布达拉宫因雷电引发火灾事件发生的可能过程、可能途径。最后对雷击火灾事故树最小割集、最小径集、基本事件的结果重要度进行比较,同时分析布达拉宫地区雷电活动规律。分析结果表明:布达拉宫雷击火灾事故树一共有22个基本事件,有308种可能导致布达拉宫因雷击引起火灾事件发生的途径。布达拉宫雷击火灾防护是一项复杂工程。研究表明,最便于采取的防护措施是加强其雷电防御能力,如清除引雷隐患、安装电涌保护器、进行等电位连接等。
[Abstract]:Potala Palace has suffered a number of different degrees of lightning strikes since its construction. Once the lightning strikes the fire, it will cause irreparable loss. Therefore, a scientific and reasonable lightning fire analysis is needed to effectively guide the Potala Palace disaster reduction work. For Potala Palace lightning may cause the risk of fire, the establishment of a fire accident tree of the lightning strike of the Potala Palace, Considering the possible process of the fire incidents caused by lightning in Potala Palace, the possible ways are taken. Finally, the minimum cut set, the minimum path set, the important degree of the basic events are compared, and the lightning activity rules of the Potala Palace area are analyzed. The results show that the Potala Palace lightning fire accident tree has 22 There are 308 kinds of basic events that may lead to the fire accident in Potala Palace. Potala Palace lightning protection is a complex project. The research shows that the most convenient protection measures are to strengthen its lightning defense capability, such as removing the hidden danger of lightning, installing surge protector, and conducting equipotential connection.

【作者单位】：南京信息工程大学大气物理学院;西藏自治区气象局防雷中心;
【基金】：国家自然科学基金项目(41175003) 西藏自治区文物局项目资助江苏高校优势学科建设工程资助项目(PADA)
【分类号】：TU998.1

【相似文献】