Hollow-bar piles
Hollow bar piles consist of three main components: the pile head, the steel tension and/or compression member – including coupler and sacrificial drill bit – as well as the grout body. The steel tension and/or compression member is designed as a hollow bar with a cold-rolled continuous thread, allowing it to be cut or coupled at any required position.
Structure
Hollow bar piles consist of three main components:
Pile head
Steel tension and/or compression member – including coupler and sacrificial drill bit
Grout body
The steel tension and/or compression member is designed as a hollow bar with a cold-rolled round or trapezoidal thread, allowing it to be cut or coupled at any required position.
Features
Nationally approved system with internal and external quality monitoring
Excellent adaptability to transport and installation conditions due to delivery in segments with coupler connections
A wide range of drill bits allows application in a wide variety of soil conditions
Easy on-site length adjustment, e.g. under varying geological conditions, by using segmented elements with coupler connections
Excellent bond between the SHS bar and cement grout due to the thread ribs
Optimal adaptation to required load capacities through a wide range of available cross-sections
Fast construction progress by drilling, installing and grouting the pile in a single operation
Transfer of tensile, compressive and cyclic loads
Structural variants
Short-term pile (temporary)
Short-term pile with a service life of up to 2 years
Permanent pile, uncoated, considering a soil-dependent corrosion rate (service life of up to 50 years)
Permanent pile, hot-dip galvanized, considering a soil-dependent corrosion rate (service life of up to 50 years)