Announcement - Asse II mine

11 August 2017: Current status of retrieval planning

In the context of the 51st meeting of the Asse 2 Monitoring Group on 11 August, the Bundesgesellschaft für Endlagerung mbH (BGE) gave a presentation on the current status of retrieval planning.

On behalf of the BGE, the work group for designing the retrieval (Arge KR) has since May 2015 been drafting a concept for the retrieval of radioactive waste from the 12 storage chambers at the 725 and 750 metre levels of the Asse II shaft mine. Design planning for the waste at the 511 metre level of the shaft mine has recently been submitted. For the BGE, this represents a first important step towards the retrieval of radioactive waste from the Asse II shaft mine.

To plan the retrieval of the waste at the 725 and 750 metre levels, Arge KR has drafted a processing concept and a strategy for compiling safety and verification concepts. On this basis, retrieval processes have been developed based on mining methods well-known within the mining industry. These were first investigated by the work group for their general suitability. Then, remaining retrieval procedures were subjected to an assessment to restrict further dealings to the two or three most suitable retrieval procedures.

The talk by Arge KR at the 51st meeting of the Asse 2 Monitoring Group presented the methods for retrieval planning, the mining procedures underlying the general concepts and the retrieval procedures to be pursued.

Arge KR is a consortium of four companies: Uniper Anlagenservice GmbH (leading), Deilmann-Haniel GmbH, ERCOSPLAN Ingenieurgesellschaft Geotechnik aud Bergbau mbH and TÜV Rheinland Industrie Service GmbH. DMT GmbH & Co. KG has been commissioned to plan the concept for the waste at the 511 metre level.

Storage chambers at the 750 metre level (Cross-sectional drawing)