New Safe Confinement
E414463
New Safe Confinement is a massive steel arch structure built to encase the damaged Chernobyl Nuclear Power Plant reactor and prevent further release of radioactive materials.
All labels observed (4)
| Label | Occurrences |
|---|---|
| New Safe Confinement canonical | 2 |
| Chernobyl New Safe Confinement | 1 |
| Chernobyl Shelter Implementation Plan | 1 |
| New Safe Confinement structure | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4136936 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: New Safe Confinement Context triple: [Chernobyl disaster, protectiveStructure, New Safe Confinement]
-
A.
Strategic Scientific Reserve
The Strategic Scientific Reserve is a fictional World War II–era Allied intelligence and scientific agency in the Marvel universe, known for developing advanced technology and serving as a precursor to S.H.I.E.L.D.
-
B.
Central Reclamation
Central Reclamation is a major land reclamation project on Hong Kong Island that expanded the Central district’s waterfront into Victoria Harbour for commercial, transport, and public space development.
-
C.
Silo
Silo is a dystopian science fiction television series in which David Oyelowo appears, set in an underground society governed by strict rules and secrets.
-
D.
Natanz enrichment facility
The Natanz enrichment facility is Iran’s primary uranium enrichment complex and a central focus of international nuclear negotiations and monitoring efforts.
-
E.
D Reactor
D Reactor was one of the early plutonium production reactors at the Hanford Site in Washington, built during the Manhattan Project to support the U.S. nuclear weapons program.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: New Safe Confinement Target entity description: New Safe Confinement is a massive steel arch structure built to encase the damaged Chernobyl Nuclear Power Plant reactor and prevent further release of radioactive materials.
-
A.
Strategic Scientific Reserve
The Strategic Scientific Reserve is a fictional World War II–era Allied intelligence and scientific agency in the Marvel universe, known for developing advanced technology and serving as a precursor to S.H.I.E.L.D.
-
B.
Central Reclamation
Central Reclamation is a major land reclamation project on Hong Kong Island that expanded the Central district’s waterfront into Victoria Harbour for commercial, transport, and public space development.
-
C.
Silo
Silo is a dystopian science fiction television series in which David Oyelowo appears, set in an underground society governed by strict rules and secrets.
-
D.
Natanz enrichment facility
The Natanz enrichment facility is Iran’s primary uranium enrichment complex and a central focus of international nuclear negotiations and monitoring efforts.
-
E.
D Reactor
D Reactor was one of the early plutonium production reactors at the Hanford Site in Washington, built during the Manhattan Project to support the U.S. nuclear weapons program.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
engineering megastructure
ⓘ
protective shelter ⓘ radiation containment structure ⓘ steel arch ⓘ |
| commissioningDate | 2019 ⓘ |
| constructionCost | approximately 1.5 billion euros ⓘ |
| constructionMethod | built adjacent to reactor and slid into position ⓘ |
| constructionStartDate | 2012 ⓘ |
| contractor | Novarka ⓘ |
| country | Ukraine ⓘ |
| designedBy | Novarka consortium ⓘ |
| designLife | at least 100 years ⓘ |
| feature |
corrosion protection systems
ⓘ
hermetic sealing ⓘ internal overhead cranes ⓘ monitoring systems ⓘ |
| function |
to limit water infiltration into the reactor ruins
ⓘ
to provide a controlled environment for decommissioning ⓘ to reduce maintenance needs compared to the old sarcophagus ⓘ |
| fundedBy |
Chernobyl Shelter Fund
ⓘ
European Bank for Reconstruction and Development ⓘ international donors ⓘ |
| governedBy | State Agency of Ukraine on Exclusion Zone Management ⓘ |
| hasComponent |
air-tight cladding
ⓘ
crane system ⓘ end walls ⓘ foundations ⓘ remote handling equipment ⓘ ventilation system ⓘ |
| hasParticipant |
Bouygues
ⓘ
surface form:
Bouygues Travaux Publics
Vinci Construction ⓘ
surface form:
Vinci Construction Grands Projets
|
| height | approximately 108 meters ⓘ |
| length | approximately 162 meters ⓘ |
| locatedIn |
Chernobyl Exclusion Zone
ⓘ
Chernobyl Nuclear Power Plant ⓘ |
| material | steel ⓘ |
| partOf |
New Safe Confinement
self-linksurface differs
ⓘ
surface form:
Chernobyl Shelter Implementation Plan
|
| protects |
Chernobyl Nuclear Power Plant Unit 4
ONNED1
ⓘ
remains of the Chernobyl reactor core ⓘ |
| purpose |
to confine the damaged Chernobyl Unit 4 reactor
ⓘ
to enable dismantling of the old Chernobyl sarcophagus ⓘ to prevent further release of radioactive materials ⓘ |
| relatedToEvent | Chernobyl disaster ⓘ |
| replaces |
Chernobyl Nuclear Power Plant
ⓘ
surface form:
Chernobyl Shelter Object
|
| riskMitigated |
release of radioactive dust
ⓘ
structural collapse of the old sarcophagus ⓘ |
| slidIntoPositionDate | 2016 ⓘ |
| span | approximately 257 meters ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: New Safe Confinement Description of subject: New Safe Confinement is a massive steel arch structure built to encase the damaged Chernobyl Nuclear Power Plant reactor and prevent further release of radioactive materials.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
New Safe Confinement structure
this entity surface form:
Chernobyl New Safe Confinement
this entity surface form:
Chernobyl Shelter Implementation Plan