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地震

地震 ›› 2005, Vol. 25 ›› Issue (4): 133-138.

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供水管道震害预测模型及其在GIS环境下的实现

裴宗厂1,2, 王晓青3, 刘尧兴2, 王士华2   

  1. 1.中国科学技术大学, 安徽 合肥 230026;
    2.河南省地震局, 河南 郑州 50000;
    3.中国地震局地震预测研究所, 北京 100036
  • 收稿日期:2005-01-17 修回日期:2005-04-06 出版日期:2005-10-31 发布日期:2021-11-10
  • 作者简介:裴宗厂(1973-), 男, 河南柘城人, 2003年在读硕士研究生, 主要从事地震安全性评价、 生命线系统震害预测等研究。
  • 基金资助:
    “十五”江西省震害预测项目(JX105-07)资助

Earthquake damage assessment models of water supply pipelines and their reali- zation based on GIS

PEI Zong-chang1,2, WANG Xiao-qing3, LIU Yao-xing2, WANG Shi-hua2   

  1. 1. University of Science and Technology of China, Hefei 230026;
    2. Earthquake Administration of Henan Province, Zhengzhou 450000;
    3. Institute of Earthquake Administration CEA, Beijing 100036, China
  • Received:2005-01-17 Revised:2005-04-06 Online:2005-10-31 Published:2021-11-10

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摘要： 供水管道的震害主要原因是强烈的地面运动或场地失效以及管材、 管径尺度等因素的影响。 因此, 将管道细分为单元, 并分别考虑主要因素是强烈的地面运动或场地失效对单元的震害影响, 建立相应的震害预测模型; 单元综合震害以及由单元组成的管道体系的震害, 则采用综合概率法进行预测。 用GIS空间分析技术, 依据用户指定的单元划分原则进行多因素单元自动划分, 将有助于提高震害预测的自动化水平和预测效率。 另外主要介绍了供水管道的单元震害预测模型和综合概率预测模型; 叙述了在GIS环境下管道数据管理与查询、 地图显示、 预测单元自动划分、 预测结果的显示输出等功能设计。

关键词: 供水管道, 震害预测模型, 综合概率, GIS

Abstract: The earthquake damage to water supply pipeline is affected by the seismic motion and the site liquefaction, material and diameter of the pipes etc. Therefore, it is suitable to divide a pipeline into several segments or units, and then considering the influence of seismic motion and site liquefaction on the units respectively. Two earthquake damage assessment models have been developed. The unit damage acted by two factors and the damage of pipeline, which composed by series-wound units, can be estimated by synthetically probability method. In practice, the division of pipeline into units considering different affecting factors may be difficult manually. The automatic division and damage assessment can be easily done through spatial analysis under GIS environment.
In this paper, the assessment models of earthquake damage to both the unit of a pipeline and the pipeline composed by series-wound units are introduced. The basic functions, such as the management and query of pipelines and the environment data, damage assessment, map viewing, automatic segmentation of pipeline, the output of prediction results and so on, are also introduced.

Key words: Water supply pipeline, Model of earthquake damage assessment, Synthetically probability, GIS

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