Tubular Bunker — Modular Metal & Concrete Structure for Protected Spaces
- a2zshelters
- 4 days ago
- 4 min read
The Tubular Bunker is a modular shelter solution developed by Atmas Group for use in crisis situations and on private properties. According to the manufacturer's current product information, the structure combines a galvanized outer shell with a modular interior that can be adapted to individual requirements. It can be configured either underground or above ground.
The design is intended not only as a shelter but also as additional usable space, including applications such as a warehouse, workshop or home cinema.
Modular tubular shelter construction
The main engineering characteristic of the Tubular Bunker is its modular configuration. The manufacturer specifies a usable internal height of 3 meters and a living-cabin length of 6–15 linear meters. The structure also incorporates dedicated space for connections and technical systems.
This configuration allows the shelter to be adapted to different project requirements while retaining the basic tubular structural concept.
Main technical parameters
Parameter | Manufacturer's specification |
Usable height | 3 m |
Living cabin length | 6–15 linear m |
Installation | Underground or above ground |
Technical space | Provided within the structure |
Outer shell | Galvanized |
Maximum burial depth | 6 m |
These are the parameters currently stated on the Atmas Group product page.
Underground or above-ground configuration
The Tubular Bunker can be configured for underground or above-ground installation. This gives the project greater flexibility when the site, construction conditions or intended application require a particular configuration.
For underground installation, Atmas specifies that the shelter can be buried to a depth of up to 6 meters. The manufacturer states that this increases resistance to explosions and other external threats.
The exact installation method should therefore be determined as part of the engineering design for the specific site.
Protection and shelter equipment
The Tubular Bunker is specified with certified gas- and water-tight doors and explosion-proof hatches. These components are intended to provide isolation from external threats.
The shelter can also incorporate an Arconik filter ventilation system and filters from Atmas for protection against nuclear, biological and chemical (NBC) threats.
For projects requiring a dedicated air-protection system, Atmas provides a separate range of air filtration and management solutions, including CBRN filtration, CO₂ and CO removal, ventilation systems and airflow-control equipment.
Galvanized outer shell
The external shell of the Tubular Bunker is galvanized. According to Atmas, this provides protection against corrosion and contributes to the durability of the structure.
The structure can additionally be reinforced with reinforced concrete. This provides an option for adapting the construction to project-specific structural requirements.
The manufacturer specifically identifies the combination of the tubular structure, galvanized outer shell and potential reinforced-concrete reinforcement as part of the shelter's durability concept.
Technical systems and internal configuration
The structure includes space for connections and technical systems, allowing the shelter's internal configuration to accommodate the equipment required for the particular project.
This is important when designing a protected facility because the structural enclosure is only one part of the complete system. Depending on the project, a protected shelter may require ventilation, filtration, protective doors, hatches and other technical equipment.
Atmas provides these technologies through its broader portfolio of shelter and protective solutions.
Tubular Bunker as additional usable space
The manufacturer describes the Tubular Shelter as a solution for private properties that can provide access to protected space during crisis situations. Its modular construction also allows it to function as additional usable space.
The applications specifically mentioned by Atmas include:
shelter;
warehouse;
workshop;
recreational space;
home cinema.
Therefore, the concept is based on combining a protective structure with a space that can have practical or recreational use outside emergency situations.
Tubular Bunker and prefabricated shelter solutions
The Tubular Bunker belongs to Atmas Group's broader portfolio of prefabricated shelters and bunkers. The company offers modular shelter solutions for both above-ground and underground applications.
The product range includes different shelter concepts and materials, allowing projects to be evaluated according to their intended application, construction conditions and required protection technologies.
Integration with ventilation and protective systems
A protected shelter requires more than a structural enclosure. Air treatment and pressure management can be integrated into the overall shelter concept.
Atmas offers CBRN filtration and ventilation systems for shelters and protected facilities, together with:
CBRN filtration systems;
CO₂ and CO removal systems;
blast valves;
overpressure valves;
gastight valves;
shelter ventilation blowers;
blast and gastight piping;
wall sleeves and flanges.
This equipment can be considered when developing the technical configuration of a Tubular Bunker project.
Tubular Bunker: technical summary
The current manufacturer specifications can be summarized as follows:
Structure: modular tubular metal and concrete structureUsable height: 3 metersLiving cabin length: 6–15 linear metersConfiguration: underground or above groundOuter shell: galvanizedReinforcement: reinforced concrete can be usedMaximum burial depth: 6 metersDoors: certified gas- and water-tight doorsHatches: explosion-proof hatchesVentilation: Arconik filter ventilation system and Atmas filtersProtection: nuclear, biological and chemical (NBC) threats
The specifications above are limited to information currently published by Atmas Group; no additional dimensions, capacities or protection ratings have been added.
Choosing a modular tubular shelter
The Tubular Bunker is particularly relevant when a project requires a modular protected structure that can be installed above or below ground and configured according to the intended use.
The combination of a 3-meter usable height, 6–15-meter living-cabin length, galvanized shell, optional reinforced-concrete reinforcement and integration with filtration and protective equipment provides the basic framework described by the manufacturer.
For a project-specific configuration, Atmas Group provides consultation and project support for shelters and protected facilities.
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