Bunker Kolomaki Quick 1 – 3000
Spacious but easy to install bunker.
| Area of the underground space (m2) | 6,6 |
| Overall dimensions (HxLxW, mm) | 2320х4600х2400 |
| Weight (kg) | 560 |
| Price (€ ex VAT) | 6 930 |
Product description
A medium-length bunker with an inclined entryway can be submerged into a slope or flat ground. Partially embedded, the bunker is exceptionally easy to install. Installation is fast and inexpensive. The dug-up earth then forms a cover above the bunker which adds thermal insulation and hides the bunker below ground.
A simple comfortable staircase with a profile and steps from durable aluminum and a tall enough entrance make the bunker even more convenient to use.
Lateral supports with steel rebars tightly unify the plastic construction with the poured cement. The vaulted ceiling construction makes Kolomaki Quick more durable than common rectangle structures.
The longevity of our bunkers Quick is ensured by high-quality polypropylene and modern welding tools. Our bunkes do not require any metal decay protection treatment or any unique maintenance.
Bunker Quick 1 3000 is the ideal emergency shelter for a family of 5-6 people to wait out in safety and comfort during a crisis. It fits up to 6 furniture items such as seating or two compact beds. We recommend using folding chairs and beds to increase free space.
This bunker is available in different sizes.
Smaller variant: Bunker Quick 1 2000
Bigger variant: Bunker Quick 1 4000
Technical characteristics
| Area of the underground space (m2) | 6,6 |
| Overall dimensions (HxLxW, mm) | 2320*4600*2400 |
| Weight (kg) | 560 |
| Entrance door | yes |
| Stairs | yes |
| Entrance | sloping |
| Concrete reinforcements | yes |
| Support ribs | yes |
Service
Delivery:
The bunker delivery isn’t expensive as it’s delivered by usual transport without any special permission across the Czech Republic and Europe. The price is determined individually and isn’t included in the cost of the bunker.
Please, contact us for shipping costs.
Tel: +420 777 072 100
Email: info@kolomaki.com
Installation
Installation of a bunker for concreting Kolomaki Quick:
The bunker for concreting is also suitable for places with a higher static load.
Installation procedure:
At the selected location, we make a 20 cm wider excavation on each side of the bunker (see drawing) to create a working space for concreting.
The bunker is placed on a compacted and levelled 100 mm thick layer of aggregate fraction 8/16.
We will install the bunker using mechanisation. After settling the bunker, we will make a concrete slab with a height of 100 mm on the floor. Due to the load during concreting, after the bunker floor has hardened, it is necessary to support the ceiling using 4 stands and one wooden beam in the center of the ceiling.
The walls of the bunker must be reinforced with 2 longitudinal wooden prisms 80/80 mm placed at a height of 500 and 1000 mm before concreting. These prisms will be spanned using horizontal wooden spacers of 80/80 mm placed approximately at quarter lengths of the beams. Only then is it possible to concrete the cellar walls.
If the bunker is installed in places with a high groundwater level, drainage must be provided around the bunker with water drainage outside the bunker. The bunker is not intended for places with groundwater.
We must not pour more than 100 cm of concrete in one day. The thickness of the concrete around the bunker is recommended to be 150 mm.
Stand-off and removal of struts can only be done after the concrete has hardened sufficiently – at least 10 days.
Construction excavation:
The construction trench must be excavated in a sufficiently large area to maintain the width of the working area. The slope, or the slope of the excavation, will result from the local geological conditions. The recommended slopes of the construction pit walls are:
| Ground type | Ratio of height to length of the slope |
| Dusty clay | 1 : 0,25 |
| Clay gravel | 1 : 0,25 |
| Earth | 1 : 0,25 – 1 : 0,5 |
| Clay | 1 : 0,25 – 1 : 0,5 |
| Clay loam | 1 : 0,25 – 1 : 0,5 |
| Sandy clay | 1 : 0,5 |
| Boulder sand | 1 : 0,75 |
| Loamy sand | 1 : 1 |
| Sandy earth | 1 : 1 |
| Sandy gravel | 1 : 1 |
| Rocky earth | 1 : 0,5 – 1 : 0,2 |
In the case of more complex geological conditions, the structural engineer will determine the protection of the walls of the excavation.
The dimensions of the construction excavation are determined by the type of bunker – see drawing. The maximum height of the embankment in standard installation is 40 cm above the basement.
Location relative to buildings:
The bunker must not be bellow a building. Loads caused by any construction could lead to deformation of the structure. The bunker must be at least 1 meter away from the building.
Location on a slope:
If the bunker is located on a slope, it is important to check the terrain to prevent landslides or other complications. A static calculation and assessment of the suitability of the stability of the subsoil or slope is carried out by a structural engineer or building designer every time the bunker is placed on a slope.
Non-standard mounting situation:
All non-standard assembly situations must be assessed by the structural engineer or building designer in order to exclude possible damage or imminent danger. On the basis of the project, a static assessment prepared by a professionally qualified authorised person must also be provided.
Transportation:
The bunker must be transported, loaded and unloaded with care. Impacts during loading and unloading are not allowed. Fastening the cellar during transportation must be done carefully, it is not allowed to use excessive force that can lead to deformation of the product body. It is recommended to load and unload the bunker using a crane, excavator or a forklift.
