基于AHP的郑州工程建设与地下空间适宜性评价

Suitability Evaluation of Zhengzhou Engineering Construction and Underground Space Based on the AHP Method

随着郑州市城市建设不断向地下空间拓展,进行区域工程建设和地下空间开发利用适宜性评价刻不容缓。在充分考虑影响郑州市工程建设与地下空间适宜性的工程地质与地震、水文地质、地形地貌、地质灾害等条件下,采用层次分析法进行研究区不同埋深适宜性评价。基于区域三维地质模型与GIS技术,实现适宜性分区的可视化。结果显示,郑州市工程建设适宜区面积占比为44.79%,而不同深度地下空间适宜区与较适宜区的面积总占比保持在70%以上,拥有较大发展潜力,随着埋深的增加,较不适宜区的面积占比总体呈现上升趋势。研究结果可为区域工程建设与地下空间的建设开发提供参考依据。

As Zhengzhou City's urban building expands into underground spaces,it is urgent to assess the suitability of regional engineering construction and underground spaces.The Analytic Hierarchy Process is performed to evaluate the suitability of various burial depths in the study area,taking into account the influence of engineering geology,seismology,hydrogeology,topography,and geological hazards.The suitability zoning was illustrated using the regional 3D geological model and GIS.According to the data,the area suitable for engineering building in Zhengzhou accounts for 44.79%of the total area.Furthermore,the aggregate area of suitable and extremely suitable zones across various depths of underground space surpasses 70%,indicating tremendous growth potential.In contrast,as burial depth increases,the region classed as less appropriate grows overall.The study's findings would be used as a significant reference for regional engineering construction,as well as the creation and building of subterranean areas.