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地质灾害危险性评价为公路路线方案选择提供依据,是保证公路建设可持续发展的关键。利用ArcEngine开发组件,针对公路实际,引入GIS的有关理论、方法和技术分析手段,采用模糊综合评判分析评价模型,得到公路沿线区域地质危险性评价专题图。同时,综合区域地质灾害危险性栅格数据,利用栅格空间分析算法,采用Visual Basic.net编程语言,以地质费用为适应度函数进行路线遗传算法优化,实现公路智能选线,从而为公路初步设计阶段的路线方案选择提供有效的决策支持。
The risk assessment of geological hazards provides the basis for the selection of highway routes and is the key to ensure the sustainable development of highway construction. Using the ArcEngine development component, the theory, method and technical analysis method of GIS are introduced to the actual situation of the highway, and the fuzzy comprehensive evaluation model is used to get the thematic map of geological hazard assessment along the highway. At the same time, based on the geohazard risk grid data of the region, using the grid space analysis algorithm and Visual Basic.net programming language, the geo-cost fitness function is used to optimize the route genetic algorithm to realize intelligent route selection of the highway, The routing options at the design stage provide effective decision support.