Set-Based Planning in the Decommissioning of a Nuclear Power Plant

Gernot Hickethier1, Hauke Anbergen2, Alexander Hofacker3 & Fritz Gehbauer4

1Research Associate and Ph.D. Candidate, Institute for Technology and Management in Construction, Karlsruhe Institute of Technology, Am Fasanengarten Geb. 50.31, 76128 Karlsruhe, Germany, Phone +49-721 608- 48235, gernot.hickethier@kit.edu
2Graduate Student, Institute for Technology and Management in Construction, Karlsruhe Institute of Technology, Am Fasanengarten Geb. 50.31, 76128 Karlsruhe, Germany, hauke.anbergen@hotmail.com
3Research Associate and Ph.D., Institute for Technology and Management in Construction, Karlsruhe Institute of Technology, Am Fasanengarten Geb. 50.31, 76128 Karlsruhe, Germany, Phone +49-160- 99085916, alexander.hofacker@kit.edu
4Professor and Head of the Institute for Technology and Management in Construction, Karlsruhe Institute of Technology, Am Fasanengarten Geb. 50.31, 76128 Karlsruhe, Germany, Phone +49- 721 608-42646, fritz.gehbauer@kit.edu

Abstract

Decommissioning of nuclear facilities is a rapidly growing field in which construction techniques are applied within a dangerous environment. Radiation and contamination complicate the design of the decommissioning process. The main objectives of decommissioning are to maintain a safe environment for workers and to avoid loosing material. Secondly, the decommissioning process shall minimize the amount of contaminated material that must be stored safely for a long time. Decommissioning processes, as well as construction processes, often consist of several inter-related tasks. During the decommissioning process planning, several feasible procedures for each task must be evaluated within the context of the overall system and regarding delivery of customer value. This paper documents a case-study during which a two staged set-based planning approach was applied to rigorously explore the planning space of a dismantling process at a nuclear power plant in Germany. The result of the planning process was then verified through a survey of experienced practitioners.

Keywords

lean construction, set-based planning, decommissioning, dismantling, nuclear facility, safety, morphological box, Choosing By Advantages

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Reference

Hickethier, G. , Anbergen, H. , Hofacker, A. & Gehbauer, F. 2011, 'Set-Based Planning in the Decommissioning of a Nuclear Power Plant' In:, Rooke, J. & Dave, B., 19th Annual Conference of the International Group for Lean Construction. Lima, Peru, 13-15 Jul 2011.

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