Installation and alignment of heavy reactor components in Unit 1 of Rajasthan Atomic Power Project
Technical Report
·
OSTI ID:4377792
The Rajasthan Atomic Power Project has two nuclear power reactors, heavy water moderated and cooled, with uranium oxide fuel. The salient features of civil engineering construction for the reactor building are described. The special construction requirements and the actual construction procedures adopted in excavation, foundation grouting, contsinment building, building drainage, and reactor vault construction including heavy density hematite concrete are explained. The building houses the reactor core and is the final containment effecting reduction of radiation a safe limit outside and has to be pressure tight against any accidental radioactive discharges. The concrete containment therefore has to be free from any crack due to shrinkage and leak proof under the pressure of 6 psi. The heavy concrete work in the calandria vault, the low temperature concrete in the containment perimeter wall to minimize shrinkage, the 39.62 m (130 ft) hemispherical prestressed concrete dome, the end shield grouting with specially designed non-shrink grouts and restraints to eliminate any movement of the shield during grouting, the 106.7 m (350 ft) high stack to release gaseous discharges from the building to safe height above ground, the thermal insulation on the outside of the inaccessible reactor building dome. and the 1.82 M litres (4 lakh gallons) capacity pre-stressed concrete dousing tank for Unit-II are all unique. Salient features of all of them have been discussed. (INIS)
- Research Organization:
- Bhabha Atomic Research Centre, Bombay (India)
- NSA Number:
- NSA-29-011823
- OSTI ID:
- 4377792
- Report Number(s):
- INIS-mf--786
- Country of Publication:
- India
- Language:
- English
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