Design for Constructability as a Contributor to Erection Schedule and Cost Reduction for Nuclear Generating Stations

Abstract

Reduction of the construction duration is addressed for a four unit (4x881 MWe) Candu nuclear generating station with a design for constructability approach. Various concepts and techniques to design for constructability are investigated, including: integration of engineering and construction planning, modularization, parallel work, standardization, modelling of temporary construction facilities together with permanent systems and structures, and construction access and craning. Methodology of recording work histories and good construction practices is described. These are elaborated with practical examples of Ontario Hydro's Darlington Nuclear Generating Station constructability reviews.