shaft Asse 5

Planning of the Asse 5 shaft

Client

BGE (Bundesgesellschaft für Endlagerung mbH)

Organization

Planning consortium with CDM Smith, Ercosplan, ZPP Ingenieure

Location

Remlingen, Germany

Execution period

January 2023

expected 2026

The construction of a new shaft is absolutely essential to retrieve the radioactive waste from the Asse II mine. The BGE awarded the contract for the planning of this shaft to the planning consortium shaft Asse 5, whose technical management is the responsibility of REDPATH DEILMANN. The depth of planning is based on service phases 1-4 according to HOAI (basic evaluation, preliminary planning, design planning, approval planning).

Planning is carried out using the BIM method. In this case, this primarily means that the structures to be planned are created in a three-dimensional representation and transferred to a higher-level model together with the results of the adjacent planning trades (including day systems and conveyor technology).

Project details

Scope of work

Accompanying the Remlingen 18 shaft pre-drilling to ensure that all essential parameters required for shaft construction planning are obtained
Elaboration of a shaft construction technical subsoil report incl. determination of homogeneous areas and characteristic geotechnical values
Dimensioning of the shaft extension, including safety certificates required under nuclear law, e.g. for the effects of earthquakes and fire incidents
Development of a suitable method for water retention that enables safe shaft sinking under demanding geotechnical conditions
Development of a shaft sinking system that is coordinated with the above-mentioned specifications
Cost calculation and construction scheduling
Preparation and continuation of operating plans (main, framework and special operating plans)

Technical data at a glance

Use for the retrieval of radioactive waste
Pull-out weather shaft
Clearance shaft diameter 8.0 m (approx.)
Final depth approx. 720 m (expected)
2 loading pockets (vs.)

Special features

Complex geological and geotechnical conditions
Complex shaft head area (widening, underground goods handling)
Strict environmental regulations, limited space

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