An overview is given of status of projects for the disposal of radioactive waste in very deep boreholes in crystalline rocks which demonstrates all main pros and cons of this technology. New opportunities offered by drilling long horizontal drillholes in ductile formations can provide the basis for projects that have the potential to overcome many of the disadvantages of deep boreholes. The concept of disposal in horizontal drillholes brings together the technologies of borehole and mined repositories using the advantages of both, and therefore deserves an expert discussion at international level.

中文翻译：

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放射性废物钻孔处置的问题与展望

概述了在结晶岩中非常深的钻孔中处置放射性废物的项目状况，展示了该技术的所有主要优点和缺点。在延展性地层中钻长水平钻孔提供的新机会可以为有潜力克服深钻孔的许多缺点的项目提供基础。水平钻孔处置的概念结合了钻孔和已开采的储存库技术，利用两者的优点，因此值得在国际层面进行专家讨论。