摘要
结合三维地质建模的理论方法和研究区地质资料,运用深探地学建模软件建立了天湖预选地段地质模型,描述了该预选地段三维构造形态,从二维到三维、从整体到局部,综合对研究区地质条件进行了三维可视化研究与分析,直观地表达了地质信息在处置主岩中的分布规律,得出如下结论:天湖地段花岗岩体呈等轴状岩株产出,岩性单一,岩体体积大;仅在天湖岩体东南部发育一条走向NW、长度2 km的断裂;岩体内部脉体和蚀变带较为发育,对岩体的完整性有一定影响,总体上岩体东北部和南部更适宜开展进一步工作。利用模型可方便分析各地质信息在岩体深部的分布特征及规律,更好地指导高放废物处置预选地段筛选及后续处置库的选址、场址特性评价等工作。
Based on the theories and methods of 3 D geological visualization models and the geological data of the Tianhu preselected site,a geological model of the site was established in this study using the Deep Insight TM geoscience modeling software.It describes the 3 D tectonic morphology of the preselected site,carries out 3 D visual analysis of the geological conditions of the study area from 2 D to 3 D,from overall to local,and from macroscopic to microscopic aspects,and intuitively expresses the distribution regularity of geological information in the main rockmass used for the disposal of high-level radioactive wastes.The granite rock massatthe Tianhu site occurs in equiaxed rock stocks,with simple lithology and large volume.There is only an NW-tending fault with a length of 2 km developing in the southeastern part of the rock mass.Besides,veins and alteration zones are relatively developed in the rock mass,which affects the integrity of the rock mass to a certain degree.The model can be used to query and update geological data at any time,analyze the distribution characteristics and laws of various geological information in the whole model,and improve the understanding of geological laws.All these willassist in better guiding the site selection,assessment,and construction of disposal repositories.
作者
罗辉
蒋实
赵宏刚
李亚伟
田霄
LUO Hui;JIANG Shi;ZHAO Hong-Gang;LI Ya-Wei;TIAN Xiao(CNNC Key Laboratory on Geological Disposal of High-level Radioactive Waste,Beijing Research Institute of Uranium Geology,Beijing 100029,China;China Aero Geophysical Survey&Remote Sensing Center for Land and Resources,Beijing 100083,China)
出处
《物探与化探》
CAS
北大核心
2021年第6期1488-1496,共9页
Geophysical and Geochemical Exploration
基金
国防科工局核设施退役及放射性废物治理专项项目(科工二司[2019]1496号)。
关键词
高放废物地质处置
天湖地段
地段筛选
地质建模
geological disposal of high-level radioactive waste
Tianhu preselected site
site screening
geological modeling
