Solid bar micropiles
Unlike hollow bar micropiles, solid bar micropiles must be installed in a supported or stable borehole. Due to the high-strength threaded bars forming the load-bearing element, they provide a high load-bearing capacity while requiring comparatively small borehole diameters.
Construction
Solid bar micropiles consist of three main components:
- Pile head
- Steel tension or compression member
- Grout body
The steel tension or compression member is designed as a round steel bar with hot-rolled coarse thread ribs, allowing it to be cut or coupled at any desired position.
Properties
- Nationally and internationally approved system with internal and external quality control
- Excellent adaptability to transport and installation conditions through delivery in sectional lengths with coupler connections
- Easy on-site length adjustment, for example in varying geological conditions, by using sectional lengths with coupler connections
- Excellent bond between the threaded bar and cement grout due to the threaded rib profile
- High adaptability to required loads through a wide range of available cross-sections
- Transfer of tensile, compressive and alternating loads
Construction variants
- Temporary pile with standard corrosion protection (SCP)
- Temporary pile with enhanced temporary corrosion protection (ASCP) – standard corrosion protection taking corrosion rates into account or with additional coatings (e.g. galvanizing)
- Permanent pile with double corrosion protection (DCP)