基于Petri网的地质灾害事件空间复杂结构模拟与分析系统

邢细涛; 葛咏; 成秋明; 左仁广; 刘小龙

基于Petri网的地质灾害事件空间复杂结构模拟与分析系统

邢细涛^{1, 2,},
葛咏^{1, 3},
成秋明^{1, 2},
左仁广^{1, 2},
刘小龙⁴

1.
中国地质大学地质过程与矿产资源国家重点实验室, 湖北武汉 430074
2.
加拿大约克大学地球空间科学与工程系, 加拿大多伦多 M3J1P3
3.
中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室, 北京 100101
4.
中国地质大学地球科学学院, 湖北武汉 430074

基金项目: 加拿大自然科学与工程研究协会资助; 加拿大公共安全与应急预防部门资助; 地质过程与矿产资源国家重点实验室科技部专项经费资助

详细信息

作者简介:
邢细涛(1971-), 男, 博士研究生, 从事地理信息系统和软件工程研究. E-mail: xitaox@yorku.ca

中图分类号: P628
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出版历程
- 收稿日期: 2008-12-25
- 刊出日期: 2009-03-25

Geospatial Complex Structure Simulation and Analysis System of Geological Disasters Using Petri Net

XING Xi-tao^{1, 2
,},
GE Yong^{1, 3},
CHENG Qiu-ming^{1, 2},
ZUO Ren-guang^{1, 2},
LIU Xiao-long⁴

1.
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
2.
Department of Earth and Space Science and Engineer ing, York University, Toronto M3J1P3, Canada
3.
State Key Laboratory of Resources and Environmental In formation System, Chinese Academy of Sciences, Beijing 100101, China
4.
Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074 China

摘要

摘要:
地球系统中各种空间对象在时空及功能上的直接或间接的依赖关系是研究各种复杂问题的出发点, 模拟和分析这些对象之间的直接和间接制约关系往往是认识复杂系统和进行空间决策的基础, 如在地震、洪水、火灾等突发性事件发生过程中各种应急设施和部门的相互影响和制约往往是复杂的、不协调的关系.由此产生的级联效应往往会造成意想不到的严重后果.如何提高对灾害效应的认识, 预警预报灾害的级联效应是提高灾害预防和应急反应能力的重要基础.在研究灾害事件中相关对象之间的空间复杂结构的基础上, 通过建立定量关系来表示对象之间的相互关系, 采用模糊Petri网技术模拟对象之间的级联效应.以四川汶川大地震后堰塞湖的空间复杂结构为例, 动态模拟堰塞湖的潜在级联效应, 推测出易受影响的堰塞湖, 从而为有效防治地震后的次生灾害提供一种理论与技术思路.该方法和技术同样可以用于其他地学复杂系统结构的模拟和分析.
- Petri网 /
- 模糊Petri网 /
- 空间复杂结构 /
- 模拟系统
Abstract:
In the domain of earth system, temporal-spatial and functional direct or indirect interdependent relationships between geospatial objects provide the clue for the study of complex issues.The simulation and analysis of the direct and indirect dependent relationships between these geospatial objects are always the foundation to know complex systems and make geospatial decisions.For example, in some emergencies, such as earthquakes, floods, and fire disasters, the interrelated effect and dependency among particular infrastructures and departments are usually complicated and inharmonious.Then, the potential cascading effects may cause unexpected serious consequences.Therefore, how to know more about disaster effects, and forecast corresponding cascading effects becomes quite important and fundamental to increase the capability of disaster prevention and emergency response.Based on the study on geospatial complex structure among relative objects in disasters, this paper quantifies the interrelationships between these objects, and then applies fuzzy Petri net to simulate potential cascading effects between them.Finally, an example is included to illustrate geospatial complex structure of barrier lakes coming from the Wenchuan earthquake in Sichuan Province, China.The potential cascading effects among barrier lakes are dynamically simulated, and then the vulnerable barrier lakes can be found out, which provides one specific theory and technical method to efficiently prevent secondary disasters of earthquakes.In the same way, the proposed method and technique would be used to simulate and analyze other geoscientific complex system structures as well.
- Petri net /
- fuzzy Petri net /
- geospatial complex structure /
- simulation system

HTML全文

图 1 模糊Petri网示意图

Fig. 1. Sketch map of a fuzzy Petri net

下载: 全尺寸图片幻灯片

图 2 模糊Petri网的运行规则

Fig. 2. Workflow of fuzzy Petri net

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图 3 单一结构示意图

Fig. 3. Sketch map of single structure

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图 4 复合结构示意图

Fig. 4. Sketch map of complex structure

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图 5 GeoPN模拟系统结构

Fig. 5. GeoPN simulation system framework

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图 6 DEM中堰塞湖的空间分布

Fig. 6. Spatial distribution map of barrier lakes with DEM

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图 7 堰塞湖的GeoPN结构

Fig. 7. GeoPN structure of barrier lakes

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表 1 关系强度矩阵

Table 1. Matrix of relationship strength

表 2 堰塞湖的风险值

Table 2. Risk values of barrier lakes

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