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复杂的地形地质条件,是影响西南山区输电线路工程路径方案选择的重要因素。为进一步提高前期勘测设计阶段区域工程地质条件分析评价的精度,满足多要素信息化平台对量化数据的需求,该文以川西康定至泸定境内的某500kV线路工程为例,基于野外调查和工程经验,运用层次分析法建立工程地质条件层次分析结构模型及判断矩阵,用以确定各要素权重,进而建立数学评价模型,最终基于MapGIS平台绘制出路径区域工程地质分区图,为路径的优化提供了量化依据,深化了岩土工程信息化勘测方法在输电线路工程中的应用。
The complicated topographic and geological conditions are the important factors affecting the selection of transmission route in southwest mountainous area. In order to further improve the accuracy of the analysis and evaluation of regional engineering geological conditions in the stage of survey and design at the early stage and to meet the demand of quantitative data from the multi-element informationalization platform, this paper takes a 500kV line project from Kangding to Luding in western Sichuan as an example. Based on the field investigation and engineering Experience, the use of analytic hierarchy process to establish structural analysis model and judgment matrix of engineering geological conditions, to determine the weight of each element, and then establish a mathematical evaluation model, and finally draw a map of the route area engineering geology based on MapGIS platform for the optimization of the path provided Quantitative basis, deepen the geotechnical engineering information survey method in transmission line engineering application.