基于GIS的长大引水线路优选的方法研究  

Research on Method of Long Water Diversion Line-Selecting Based on GIS

作　　者：余国[1] 谢谟文[1] 王立伟[1] 

机构地区：[1]北京科技大学土木工程系,中国北京100083

出　　处：《科技视界》2014年第30期8-9,14,共3页Science & Technology Vision

摘　　要：本文提出了基于GIS的长大引水线路优选的方法研究。在对影响长大引水线路选线方案的各因素进行分析和调查基础上,选取4个一级指标、11个二级指标构建综合评价指标体系;对各个影响评价因子进行栅格化,并划分为5个等级,分别赋值1到5,建立各个选线因子的对线路影响程度的分级栅格模型;然后通过层次分析法建立层次关系,构造阶层结构,建立判断矩阵,来确定各个影响评价因子的综合指标权重,建立综合评判优选栅格模型。利用该模型对云南滇中引水工程香炉山段4条备选线路方案进行评价,得出备选方案的总分和平均分,从而确定第三方案为最优方案,为实际工程建设提供了决策依据。This thesis deals with the study of methods for long water diversion route which is based on GIS. Based on the analysis and investigation of factors affecting the long water diversion location, Select four first-level indicators, eleven second-level indicators to build a comprehensive evolution index system, and rasterize all the factors that will have an effect on the evolution, then divide then into 5 grades, assign them one to five respectively. Establish a hierarchical gird model of the inference which all the linear factors will have on the line. and then, establish a hierarchical relationship through the hierachy analytic process. By constructing a class structure and establishing a estimate matrix, one can determine the comprehensive index weight of all the influential factors, and set up the comprehensive evolution optimal grid model.

关 键 词：GIS 引水线路 线路优选 层次分析法 

分 类 号：P208[天文地球—地图制图学与地理信息工程]