Micropiles
Contact persons
Foundation and anchoring elements in all types of soil & rock
Micropiles are usually drilled or driven piles with diameters of up to 250 mm and individual load-bearing capacities of up to 1,500 kN. They are made of steel, concrete, wood or cast iron and can usually also be manufactured where space is limited.
Implementation
Drilled
Both cased and uncased boreholes are possible during production - in each case adapted to the diameter of the pile to be installed. Once the load-bearing element has been installed, the borehole is filled with cement slurry and the skin friction surface is increased by post-grouting.
Rammed
The first pipe section is fitted with a ramming shoe and driven in with high-speed impact hammers. The next pipe sections are then inserted into the conical socket of the previously driven pipe. The final pile depth can be determined based on the penetration resistance.
Examinations
- Tensile test
- Pressure tests
Applications
- Foundation reinforcement of existing structures
- Deep foundations (bridge, road, sewer, building construction and more)
- Uplift protection
- Excavation support (pipe pile wall)
Technical data
| Drilling depths | usually up to approx. 30 m (greater depths possible) |
| Diameter | 90 to 250 mm |
| Load capacity | 100 to 1500 kN |
| Equipment | from 0.25 t portable carriage to 30 t crawler drilling rig |
Learn more about special foundation engineering processes
Anchors
Soil mixing method
Ground improvement
Ductile piles
Jet grouting method
Large bored piles
Grouting
Soil nail walls & rock stabilisation
Diaphragm walls
Membrane walls
Special technology
Sheet-pile walls
Dewatering
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