Firefighting capacity evaluation of water distribution system subjected to multi-ignitions of post-earthquake fires
Firefighting capacity evaluation of water distribution system subjected to multi-ignitions of post-earthquake fires
复制标题
地震后多次火灾给水系统消防能力评估
DOI：
10.1016/j.strusafe.2020.102035
复制
发表时间：
2021
影响因子：
5.8
通讯作者：
Li Quanwang
中科院分区：
文献类型：
--
作者：
Hou Guanjie;Li Quanwang
震后火灾是地震后的一种危险次生灾害，震后火灾的多次点燃会造成巨大的经济损失和重大人员伤亡。PEF的抑制有赖于供水系统(WDS)的供水。尽管已经进行了许多研究来评估水资源分配系统的消防能力，但其水力模拟分析没有考虑到一个节点的消防需求对其他节点供水能力的影响，这可能导致对水资源分配系统抑制多个同时发生的PEF的能力估计过高。在这项研究中，发展了一套完整的程序来评估管道地震破坏和PEF多次点火影响下的WDS的灭火能力。在不同烈度地震激励下，采用蒙特卡罗方法模拟了管道在不同地震作用下的空间分布和管道损伤情况，并考虑了相关的不确定性因素。WDS的灭火能力被定义为提供足够的水来抑制多个PEF的概率，与PEF点火次数的概率分布相结合，可以实现对一个城市遭受无控制PEF的风险评估。将所提出的方法应用于目前在中国某市运营的WDS。讨论了多个同时需水对水资源综合利用系统消防能力评价的影响，以及该方法的可能应用。
Post-earthquake fire (PEF) is a hazardous secondary disaster following earthquake, and the multi-ignition of PEFs can result in huge economic loss and heavy casualties. The suppression of PEFs depends on the water distribution system (WDS) to provide water. Although a number of studies have been conducted to evaluate the firefighting capacity of WDS, their hydraulic modelling analyses fail to consider the influence of firefighting demand at one node on the water supply capability of other nodes, which may result in an overestimate of the WDS’ capability to suppress multiple simultaneous occurrence of PEFs. In this study, an integrated procedure is developed to evaluate the firefighting capacity of WDS under the effects of both seismic pipeline damage and multi-ignition of PEFs. Under the excitation of earthquakes with different intensities, the spatial distributions of PEFs and pipeline damage are simulated, and the associated uncertainties are included by Monte Carlo simulations. The firefighting capacity of WDS is defined as the probability of providing sufficient water to suppress multiple PEFs, which, combined with the probability distribution of ignition number of PEFs, can achieve the risk assessment of a city to suffer uncontrolled PEFs. The developed method is applied to a WDS currently operating in a Chinese city. Discussions are made on the influences of multiple simultaneous water demands on firefighting capacity evaluation of WDS and the possible applications of the proposed method.
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DOI：
10.1016/s1474-6670(17)38465-3
发表时间：
1998-09
期刊：
IFAC Proceedings Volumes
影响因子：
--
作者：
A. Sekizawa
通讯作者：
A. Sekizawa
地震后配水管网抗火灾可靠性评估模型（FFE）
DOI：
10.3390/w11122536
发表时间：
2019-11
期刊：
Water (Switzerland)
影响因子：
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作者：
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通讯作者：
Xin Ping
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10.1061/(asce)wr.1943-5452.0000283
发表时间：
2013-07
影响因子：
3.1
作者：
E. Bristow;K. Brumbelow
通讯作者：
E. Bristow;K. Brumbelow
DOI：
10.1061/(asce)wr.1943-5452.0000584
发表时间：
2016-02
影响因子：
3.1
作者：
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通讯作者：
D. Yoo;Donghwi Jung;D. Kang;Joon-Hoon Kim;K. Lansey
DOI：
10.3801/iafss.fss.1-931
发表时间：
1986
期刊：
Fire Safety Science
影响因子：
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作者：
H. Kaji;T. Komura
通讯作者：
H. Kaji;T. Komura