【摘要】 根据我国城市发展和地震应急避难建设的需求,把城市地震避难场所划分为3个级别,建立了相应的避难场所规划流程。讨论了固定避难场所覆盖区域的计算方法,编制了相应的计算程序,通过使用7因子评价指标和评分标准。以覆盖半径为权重,运用加权Voronoi图方法在GIS平台上对固定避难场所责任区域进行了空间划分,并与Voronoi图方法进行了对比．结合实例论证了各场所空间影响范围的合理性,为城市避难场所建设和规划提供了简便方法。更多还原

【Abstract】 Based on the requirements of establishing urban earthquake emergency shelters(UEES),this paper lays emphasis on discussion about the calculation method of the service area of UEES,which are classified as 3 levels.The evaluation criteria and score of UEES are given.The planning flowchart of the 3 levels of UEES is shown and the corresponding computer program is developed in this paper.We offer a method for regional- izing UEES responsibility space based on weighted Voronoi diagram(WVD)through the GIS technology. Using the weighted radius of UEES responsibility space as the weights of WVD,7 influential factors in the radius are prouided.We apply the method to optiming zoning map of UEES responsibility regionalization,and compare the result with that from ordinary Voronoi diagram(OVD).The proposed method for UEES plan- ning is verified through exemplary analysis and the result shows the reasonableness of the method and it can provide a simple approach for UEES planning and preparation.更多还原