高放废物地质处置地下实验室新场候选场址三维地质建模

摘要

Based on the analysis and interpretation of data available in Xinchang area,models of pluton units and faults have been set up separately.By combing this two models together and preforming interpolating calculation,a 3D geological model of the candidate underground research laboratory (URL) site for High-level Radioactive Waste Disposal has been built,which can reveal underground environmental character around the candidate site in detail.A series of practical visualization analysis have been carried out based on the 3D geological model,such as model-cutting,model-excavating,drilling design and so on.Finally,an area (R=1 km) was selected to act as candidate URL site.The conclusion can provide an useful reference and technical support for the further geological analysis and engineering design of the high level radioactive waste geological disposal project in China.%在新场研究区现有资料分析和解译的基础上,对岩体单元和断裂分别进行建模,然后将两个模型合并进行插值计算,建立了高放废物地质处置地下实验室新场候选场址的三维地质模型.基于模型开展了一系列三维剖切、任意开挖、钻孔设计等可视化分析应用研究,全面真实地揭示了候选场址周围深部地质环境特征,并筛选出半径约1 km的区域用作地下实验室的候选场址,为我国高放废物地质处置项目的后续工作中地质分析与工程设计提供有益参考和技术支持.