城市地下空间地质安全风险三维评价方法与实践  

3D Evaluation Method and Practice of Geological Safety Risk for Urban Underground Space

作　　者：王睿 窦帆帆 李云峰[1,2] 葛伟亚 WANG Rui;DOU Fanfan;LI Yunfeng;GE Weiya(Nanjing Center,China Geological Survey,Nanjing,Jiangsu 210016;Engineering Innovation Center for Urban Underground Space Exploration and Evaluation,Ministry of Natural Resources,Nanjing,Jiangsu 210016;Jiangsu Second Normal University,Nanjing,Jiangsu 210016)

机构地区：[1]中国地质调查局南京地质调查中心,江苏南京210016 [2]自然资源部城市地下空间探测评价工程技术创新中心,江苏南京210016 [3]江苏第二师范学院地理科学学院,江苏南京210016

出　　处：《地质与勘探》2024年第1期185-196,共12页Geology and Exploration

基　　金：中国地质调查局项目(编号:DD20221732、DD20230116);江苏省高校自然科学研究面上项目(编号:23KJD170001)联合资助。

摘　　要：城市地下空间地质安全风险三维评价是合理进行地下空间立体化开发、降低开发地质风险的重要手段,但目前尚缺乏系统的研究,工作方法体系仍有待深入探讨。在前人工作基础上,对城市地下空间地质安全风险的类型、地质诱因与核心评价指标,以及传统二维评价的局限性进行归纳总结,并结合三维地质建模、三维评价指标体系以及三维空间分析等关键三维方法技术,提出了一套较为系统的城市地下空间地质安全风险三维评价技术方法体系。为验证方法的有效性,在南京市江北新区开展了城市地下空间地质安全风险三维评价实例研究,取得了较好的效果。研究显示该方法体系能够显著提升三维尺度下地下空间地质安全风险评价精度和准确性,为立体化地下空间开发提供有力支持。Three-dimensional geological safety risk evaluation for urban underground space(UUS)is an important means to rationally carry out 3D development for UUS and reduce the geological risk.But there is still a lack of systematic research,and the workflow is still to be explored in depth.According to the previous work,this paper summarises the types of geological safety risks for UUS,geological triggers and core evaluation indexes,as well as the limitations of traditional 2D evaluation.Based on this,this paper proposes a workflow of 3D evaluation technology and methodology for geological safety risks for UUS by combining the key 3D technologies,such as 3D geological modeling,3D evaluation index system and 3D spatial analysis methods.In order to verify the effectiveness of the workflow,this paper takes Jiangbei New District in Nanjing City as an example to carry out the 3D geological safety risk evaluation for UUS.The workflow shows a good result and is proved to be able to efficiently enhanced for precision and accuracy,providing strong support for 3D UUS development.

关 键 词：城市地下空间 地质安全风险 三维评价 江北新区 南京市 

分 类 号：TU9[建筑科学] P642[天文地球—工程地质学]