街区突发性泄漏的气体扩散过程仿真技术的集成试验
Simulation of Gas Diffusion during Sudden Leakage on Block-scale
查看参考文献13篇
|
文摘
|
突发性泄漏事故已成为我国城市公共安全的一个潜在威胁。本文以福建省福州市某街区为案例, 采用高分辨率遥感影像、各种敏感目标和人口的分布信息等空间数据, 利用事件触发机制, 建立基础数据库与虚拟现实仿真试验平台。针对威胁城市公共安全的突发性泄漏事故, 选择一种适合城市街区尺度的点源气体扩散模型与GIS集成, 以构建泄漏气体扩散的三维时空仿真模型; 模拟泄漏气体的扩散范围, 以便实时监测污染可能影响区域并进行数据解读分析, 进而虚拟推演突发事故对公众的危害程度及可能的发展趋势; 构建突发事件应急辅助决策支持系统。并设计疏散撤离位置与救援路径, 优化救援资源配置方案, 以实现应急处置向导、应急资源整合与行动协调。这可快速高效地为城市突发性泄漏污染事故的模拟、应急救援提供数据验证和决策辅助支持, 同时, 也为完善我国突发性公共事件的应急管理体系和特大灾害的风险管理体制提供借鉴。 |
|
其他语种文摘
|
Sudden leakage has become a growing threat to public safety in cities. In this paper, using the emergency response to sudden leak accidents, which is a practical problem threatening public safety in cities as the entry point, we studied the simulation technology of sudden gas diffusion process on city-blockscale. Focused on the leakages that threaten urban public security, we suggested a point source gas diffusion model suit for city-block-scale and constructed a 3Dspatio-temporal gas diffusion simulate model coupled with GIS. We use it to simulate the extent of the diffusion area for pollution monitoring and data analysis, and virtually reason the accident's damage degree to public and the subsequent development. So that the accident response support decision system can be constructed, the evacuation path and time can be calculated, the emergency rescue plan can be optimized. The most remarkable characteristic of the emergency rescue problem is the time urgency that decision-makers should propose emergency rescue plan within the shortest possible time, and that adequate rescue vehicles, personnel, and supplies would be mobilized and arrive at the accident sites at the fastest speed to carry out rescues. Faced with massive sudden leakages, it is very essential to optimally distribute the emergency rescue points for being able to effectively control disaster and to successfully carry out rescue activities. According to the spatial distribution of the emergency rescue points around the accident areas, we explored the algorithm for seeking the best path of aid resource allocation, obtaining the optimal solution to the distribution of the emergency rescue points through dynamic optimization strategies. |
|
来源
|
地球信息科学学报
,2011,13(5):637-643 【核心库】
|
|
关键词
|
虚拟现实地理信息系统
;
公共安全
;
气体扩散
;
动态仿真
|
|
地址
|
福建师范大学地理科学学院, 福州, 350007
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1560-8999 |
|
学科
|
环境污染及其防治 |
|
基金
|
福建省自然科学基金
;
福建省科技创新平台建设项目
|
|
文献收藏号
|
CSCD:4344887
|
参考文献 共
13
共1页
|
|
1.
谢红霞. 突发性环境污染事故应急预警系统发展探讨.
环境污染与防治,2004,26(1):44-46
|
被引
15
次
|
|
|
|
|
2.
邹亮. 用GIS与虚拟现实技术模拟火灾过程 --应用和展望.
自然灾害学报,2005,14(3):83-86
|
被引
2
次
|
|
|
|
|
3.
朱伯龄. LNG储罐孔洞泄漏扩散危险区域分析.
安全与环境工程,2009,16(3):104-108
|
被引
3
次
|
|
|
|
|
4.
张明广. 基于GIS实时气象信息的毒害性气体泄漏扩散模拟技术.
南京工业大学学报,2009,3(3):23-27
|
被引
4
次
|
|
|
|
|
5.
卞有生. 北京城市环境安全及突发重大环境灾害应急救援行动预案研究.
中国工程科学,2003,5(7):1-9
|
被引
6
次
|
|
|
|
|
6.
Szergo J. Estimating and Mapping the Impact of Environmental Influences on a Dynamic Population.
Paris: Proc EGIS'94Conf,1994:997-1006
|
被引
1
次
|
|
|
|
|
7.
张金区. 面向服务的地学多源数据虚拟整合及其可视化分析.
地球信息科学学报,2010,12(5):614-619
|
被引
1
次
|
|
|
|
|
8.
苏红军. 面向虚拟地理环境的多源异构数据集成方法.
地球信息科学学报,2009,11(3):292-298
|
被引
3
次
|
|
|
|
|
9.
龚建华. 虚拟地理环境研究进展与理论框架.
地球科学进展,2010,25(9):915-921
|
被引
24
次
|
|
|
|
|
10.
傅春. 基于WebGIS的消防重点单位监督系统的研究与应用.
计算机仿真,2005,22(5):145-148
|
被引
2
次
|
|
|
|
|
11.
Zhang Qian. A Two-phase Heuristic Approach to the Location Muting Problem.
Control and Decision,2004,19(7):773-777
|
被引
3
次
|
|
|
|
|
12.
袁正午. 基于抢修时间的震后最优路径选择算法及GIS实现.
计算机应用,2010,30(7):1909-1912
|
被引
5
次
|
|
|
|
|
13.
Xu Zhisheng. Study on Emergency Decision Support System of Urban Community Safety Based on GIS.
Journal of Safety and Environment,2004,4(6):82-85
|
被引
2
次
|
|
|
|
|
了解气象卫星更多信息，请访问