RD&D-Programme 2004 - SKB

Programme
Design step D, which includes design of the whole facility both above and below ground, has
been divided into three substeps: D0, D1 and D2. The purpose is to include available information
step by step. A summary of the scope and products of the steps is given in Table 11-1.
Steps D0 and D1 are carried out in parallel with the initial site investigations (2002–2004)
and step D2 is carried out in parallel with the complete site investigations (2005–2007).
Layout D0 entails the start of site adaptation of the surface part and preparation of preliminary
proposals for alternative locations in Oskarshamn and Forsmark. Figure 11-3 illustrates an
example of a proposed layout of the operating area.
In Layout D1, alternative functional solutions and technical solutions are further developed
for e.g. operating areas and access alternatives for selected reference locations for the deep
repository. In combination with this, a local site adaptation of the repository’s underground part
to available geological information takes place. Proposals are presented for alternative layouts
of this part. The local adaptation also entails that the surface and underground parts are coordinated.
One document is compiled per site. The level of detail is roughly the same as in Layout
E, but site-adapted. The underground layout comprises a basis for the preliminary safety evaluation
that is presented at the end of the initial site investigation phase. Studies of environmental
and societal impact are conducted.
Layout D2, which is based on Layout D1 and the results of the site investigations, is more specific
in that it describes various work and functional solutions for the surface and underground
parts in detail. The placement of the underground part is verified by new available information,
such as investigation results and site model version 2.2, updated reasons for choice of design,
and updated engineering and design premises. Layout D2 will be described so that it serves
as a basis for the safety assessment (SR-Site) that is included in the application for the deep
repository.
The design during the site investigation phase also includes devising detailed design premises
and programme for the next phase, the construction phase.
Table 11-1. Summary of the scope and products of the design steps.
Design step Scope Products
Layout E Combined non-site-adapted design. Facility description based on theoretical
layouts for the surface and underground parts
/11-6, 11-7, 11-8/.
Layout D0
Layout D1
Layout D2
Site-adapted design of the underground
part.
Site-adapted design of the underground
part based on data from ISI and
completed consultations.
Continued site-adapted design of facility
based on site data from CSI and taking
into account safety assessment and EIA.
Update of Layout D1 with respect to
technical developments and result from
design.
Basis for execution of site preparation
work and preparation of documents for
construction of ramp and shaft.
Compilation of possible positions and layouts
for the surface part.
Layout for selected alternatives for surface
and underground part.
Facility descriptions based on alternative
layouts.
Basis for preliminary safety evaluation.
Layout of proposed facility with final site plan
for surface part and final placement of ramp
and shaft.
Facility description based on proposed or
approved layout.
Background material for SR-Site.
Supporting material for deep repository
application.
Supporting material for preparation of main
and construction documents for ramp and
shaft.
136 RD&D-Programme 2004