摘要
对地下燃气管道进行风险评价,可提供有效的辅助决策支持,对于建立城市地下燃气管网的安全评估综合管理体系具有十分重要的意义。给出了一种3DGIS地下燃气管道风险模糊综合评价方法,阐述了模糊风险评价的流程,基于层次分析法进行管道风险因素权重分析,结合单因素相对隶属度的模糊评价矩阵,建立了模糊综合评价模型;最后对研究区域燃气管道失效的问题,应用测试数据进行了模糊综合评价,计算出这片区域内管道相对风险值,并在3DGIS场景中进行可视化展示。
The evaluation of the risk of underground gas pipeline can provide effective decision support aid.It is crucial to the establishment of a comprehensive safety evaluation and management system for the urban underground gas pipeline.This paper present a method of GIS-based fuzzy comprehensive evaluation on underground gas pipeline risk and elaborates the flow of fuzzy risk evaluation in detail.Meanwhile,a fuzzy comprehensive evaluation model was built herein by analyzing the pipeline risk factor weight by means of analytic hierarchy process according to the fuzzy evaluation matrix for relative single-factor membership.Finally,a fuzzy comprehensive evaluation with test data was made on the failure to research the regional gas pipeline issue,the relative risk value of the pipelines in the area was calculated and visualization was made in 3DGIS scene.
出处
《地理空间信息》
2011年第2期23-25,31,共4页
Geospatial Information
基金
湖南省自然科学基金资助项目(07JJ6076)
关键词
GIS
地下燃气管道
模糊综合评价
3DGIS,underground gas pipeline,fuzzy comprehensive evaluation
