Study on the systematic preliminary investigation for high level radioactive waste management. Construction of survey and estimation flow diagram and R and D on element technologies

The comprehensive survey and estimation flow diagram for the Preliminary Investigation (PI) was constructed by simulating the PI, and the validity of the consideration which is set up in this study was examined. Also, the element technologies were developed for the efficient and upgraded PI. The basic concept of the PI such as how to select the area for PI was set up and proposed as a postulate for this study. By simulating the PI, the survey and estimation flow diagram from the view point of engineering and geological long stability were constructed, then the comprehensive survey and estimation flow diagram was integrated by considering the spatiotemporal relationship of both flow diagrams. The PI in the various geological conditions was simulated and it is examined whether we can collect enough data to check the consideration. This resulted that most data to check the consideration could be collected through the PI. Among the existing technologies making up the PI, some technologies extracted for the efficient and upgraded PI were developed. (author)