MT法在高放废物预选区的应用研究——以甘肃北山向阳山—新场地段为例

The Application of MT Method to High Level Radioactive Waste Preselected Site——Taking the Beishanxiangyang Mountain to Xinchang Area of Gansu Province as an Example

简要介绍了MT测量围绕新场变质花岗岩体展开工作。首先根据地质资料,针对断裂或破碎带以及捕掳体进行了3D模拟。根据模拟结果和已知的地质概况选择了实际发射位置、测点距、测线长度和频段范围。用分析所获得的数据的原始曲线,对数据进行了再处理和反演。研究结果表明,该技术在探测预选区花岗岩深部地质构造特征方面具有明显的优势,为高放废物处置库场址的稳定性和完整性评价提供参考。

The paper briefly introduces the application of MT method to measure the metamorphic granite rock of Xinchang Area.At first,according to the geological data,the 3D model of fracture zone and xenoliths has been built.Based on the simulation results and the known geological data,the actual position,distance of measuring points,length of measuring line and the frequency range are chosen.The data,analyzed from the original curve,are re-processed and inversed.Research results show that the technology has obvious advantages in prospecting the deep geological structure features of the granite in primary zone,which provides reference to evaluate the stability and integrity of high radioactive waste repository site.