Abstract
The in-service inspections are an essential part of aging
management and condition monitoring of the nuclear power
plants. The purpose of the in-service inspections is to
prevent the damage of concrete structure from being
increased to such a degree that they could risk the
normal operation or safety of nuclear power plant
structures. The in-service inspections are generally
divided into three categories: visual inspections,
special inspections, and monitoring and measurements. The
paper is about the development of a database for the
in-service inspections data of the nuclear power plants
concrete structures. This database is a part of the
research project "Aging Management of Concrete Structures
in Nuclear Power Plants (MANAGE)". MANAGE is a
cooperation project between VTT and Aalto University and
is funded by SAFIR 2014 (The Finnish Research Programme
on Nuclear. Power Plant Safety 2011 - 2014). The goals
and objectives of the database are to (i) collect the
essential and up-to-date data of the condition and the
performance of the NPP concrete structures, (ii) store
and update these data effectively, (iii) allow
sophisticated search strategies, (iv) produce detailed
reports automatically for the condition and the
performance of the NPP concrete structures and (v) enable
data transfer to other software for further analysis. The
design process of the database includes the system
analysis, the logical and physical design, and then the
final system implementation ant testing. The structure of
the database includes the information about the concrete
structural and the surrounding climate, electronic
documents and digital photos, visual investigation and
diagnosis reports and non-destructive and destructive
test results. The structure of the database is
established to reflect the time dependent structural and
functional performance of the concrete structures. The
implementation phase involves in-service inspection raw
data collection, validation and harmonization for general
use in the NPP. The raw data will be provided by each
plant from their files and records and testing
laboratories.
Organization of the in-service inspection results in the
database will be useful to define in-service inspection
and monitoring programs and establish maintenance
strategies. In addition, this database will allow access
to the data needed for development of ageing trends which
in turn will indicate when critical stage is expected or
emphasize when remedial actions are needed. It will also
enhance the decision-making process for preventing or
mitigating ageing effects by providing information for
continued service evaluations and remaining service life
estimates.
Original language | English |
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Title of host publication | Proceedings |
Subtitle of host publication | IABSE Workshop Safety, Failures and Robustness of Large Structures, IABSE 2013 |
Publisher | International Association for Bridge and Structural Engineering (IABSE) |
Number of pages | 8 |
ISBN (Print) | 978-3-8574-8130-7 |
Publication status | Published - 2013 |
MoE publication type | Not Eligible |
Event | IABSE Workshop on Safety, Failures and Robustness of Large Structures, IABSE 2013 - Helsinki, Finland Duration: 14 Feb 2013 → 15 Feb 2013 |
Conference
Conference | IABSE Workshop on Safety, Failures and Robustness of Large Structures, IABSE 2013 |
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Abbreviated title | IABSE 2013 |
Country | Finland |
City | Helsinki |
Period | 14/02/13 → 15/02/13 |
Keywords
- nuclear power plants
- database
- in-service inspection
- concrete structures
- deterioration