内蒙古塔木素高放废物地质处置库三维地质建模研究

Study on Three-dimensional Geological Modeling of Tamusu High-level Radioactive Waste Disposal Repository in Inner Mongolia

内蒙古塔木素地区是我国高放废物粘土岩处置库选址的重点研究区域,三维地质模型可直观、立体的展示地下深部结构空间的分布形态,是一种有效的场址评价手段。为确保地质模型的可靠性,融合了已有的地质平面图、12条浅层地震剖面,对塔木素地区进行三维地质建模研究。依据塔木素地区三维地质模型刻画的粘土岩目标层位、断裂构造空间分布特征,结合我国高放废物地质处置库选址标准,在预选地段东南处圈定了一处高放废物地质处置库的优选区域。

Tamusu area of Inner Mongolia is a key research area for site selection of clay rock disposal repository for high-level radioactive waste in China.Three-dimensional geological model can display the distribution pattern of deep underground structure space intuitively and three-dimensional,and it is an effective site evaluation method.In order to ensure the reliability of the geological model,this paper integrates the existing geological plan and 12 shallow seismic profiles to study the three-dimensional geological modeling of Tamusu area.According to the target layer of clay rock and the spatial distribution characteristics of fault structure described by the three-dimensional geological model of Tamusu area,and in combination with the site selection criteria of high-level radioactive waste geological disposal repository in China,the optimal area for a geological disposal repository of high-level radioactive waste is delineated in the southeast of the pre-selected area.