摘要
城市地下空间资源开发在城市发展中发挥着重要作用,基于三维建模的城市地下空间资源质量评价为城市地下空间资源利用和开发提供重要支撑。本文以南京江北新区为例,基于30 m×30 m×1 m的Voxel单元处理地质数据,构建地下空间资源质量评价三维地质模型,从工程地质、水文地质等方面选取地下空间资源质量评价指标,利用三维插值、三维空间统计等方法对评价指标进行分析,基于层次分析法和模糊综合评价法得到地下空间资源质量的三维可视化评价结果。研究表明:研究区西部地下空间资源质量较高,东部较低,相关成果可为南京江北新区地下空间规划和可持续开发提供参考。
The development of urban underground space resources plays an important role in urban development.The quality evaluation of urban underground space resources based on 3D modeling provides important support for urban underground space planning and development.Taking Jiangbei New Area of Nanjing as an example,this paper constructed a 3D geological model of underground space resource quality evaluation based on 30 m×30 m×1 m Voxel unit processing geological data,and selected evaluation indexes of underground space resource quality from aspects of engineering geology and hydrogeology.The 3D evaluation indexes are analyzed by using 3D interpolation and 3D spatial statistics,and the 3D visualization evaluation results of underground space resource quality are obtained based on analytic hierarchy process and fuzzy comprehensive evaluation method.The case study shows that the quality of underground space resources is higher in the west and lower in the east.Relevant results provide reference for the underground space planning and sustainable development of Jiangbei New Area.
作者
孟天宇
王睿
葛伟亚
张庆
MENG Tianyu;WANG Rui;GE Weiya;ZHANG Qing(Chinese Academy of Geological Sciences,Beijing 100037,China;Nanjing Centre,China Geological Survey,Nanjing 210016,China)
出处
《地理信息世界》
2022年第5期94-100,105,共8页
Geomatics World
基金
南京江北新区地下空间资源综合利用调查评价项目(NJZXK2021-016)。
关键词
地下空间资源
Voxel单元
三维建模
可视化
underground space resources
Voxel unit
3D geological model
visualization
