The Study of the Sealing System of High Level Radioactive Waste Repository

In high level radioactive waste disposal project, the workstages after the selection and the investigation of the disposal site can be divided into the three phases of construction, operation and sealing. Among these phases, the purpose of sealing is the securing of long term safety for the repository to prevent the radionuclide migration speed increasing at shaft, tunnel and disturbed zone of host rock , by means of backfill, plugs and grout after waste has been positioned in the repository. This report proposes a design method of sealing system.