Anchoring systems for geotechnics

Freyssinet offers a wide range of systems to design anchors adapted to each use

Anchoring systems geotechnics Table of products

Strand anchors

These are multi-strand ground anchors, based on Freyssinet post-tensioning systems (ETA 06-0226, CE marking) and designed as post-tensioning solutions for geotechnics.

Temporary, semi-permanent and permanent anchors are available, offering a different corrosion protection class (EN 1537).

Standard range up to 13 strands, larger anchors on request.

Used for excavations, pylons, buildings and bridges
  • Different options available
    for the anchor head:
    restressable, adjustable,
    removable, monitored, ...
  • Dedicated equipment provided
    by Freyssinet for accurate work
  • Quick and easy installation

Cuttable Ground Anchors

Made of GFRP (Glass Fiber Reinforced Polymer) instead of steel, this innovative system is used to stabilize excavations: to allow subsequent drilling or excavation without the risk of obstruction by steel left in the ground after initial work, to prevent the spread of stray currents, or for tax reasons. There is no need to remove the tendons after use, Cuttable Ground Anchors can be easily cut or destroyed by any drilling or excavation equipment.
  • Economic, safe
    and reliable solution
  • Reduced weight
    and drudgery
  • Half the carbon
    impact of steel tendons

Freyssibar® anchors

Their main components are derived from the Freyssinet prestressing bar system (ETA-09/0169). The corrosion protection for temporary or permanent use and the injection system are specifically adapted to comply with international standards for ground anchors and tailored to project specifications.

Used for excavations, pylons, dams, buildings and bridges
  • Reliable system:
    use of certified components,
    in-house prefabrication,
    long-standing experience
  • Fine thread pitch allowing
    an accurate prestressing
  • Easy to install

Freyssi 500-E

The bar Freyssi500-E is a hot laminated bar made of reinforcing bar steel grade (500/550). It has ribs that form a thread along its entire length, allowing accessories (couplers and nuts) to be screwed in at any point. With its large range of diameters from 16 to 75 mm, it is used for all types of anchors: ground anchors, soil nails & rock bolts, micropiles, tie rods. The Freyssi500-E is designed with a left-hand thread.

Used for excavations, dams, pylons, buildings and bridges
  • Compliant with
    reinforcing bar standards
  • Rugged
  • Available on stock
    for quick delivery, easy to use

Freyssi 670-E

The bar Freyssi670-E is a hot laminated bar made of a specific steel grade (670/800). It has ribs that form a thread along its entire length, allowing accessories (couplers and nuts) to be screwed in at any point. With its large range of diameters from 18 to 75 mm, it is used for all types of anchors: ground anchors, soil nails & rock bolts, micropiles, tie rods. The Freyssi670-E is designed with a right-hand thread.

Used for excavations, dams, pylons, buildings and bridges
  • Reduced diameters
    than re-bars thanks
    to higher steel grade
  • Economic option (less steel)
  • Easy to use

Freyssi SD (Self Drilling)

The system is used for anchors installed in loose soil or where the borehole may collapse. It allows drilling, installation of the bar and grouting in a single operation, which avoids the use of a casing. The system consists of:Fully threaded hollow bars from R32 to T76 (higher diameters on request) Couplers, Nuts and anchor plates, Drill bits

Used for excavations, dams, pylons, buildings and bridges
  • High installation rate
  • Very good
    bonding capacity
  • Can be used in all types of soils
    thanks to a large range of drill bits

Strand anchors

These are multi-strand ground anchors, based on Freyssinet post-tensioning systems (ETA 06-0226, CE marking) and designed as post-tensioning solutions for geotechnics.

Temporary, semi-permanent and permanent anchors are available, offering a different corrosion protection class (EN 1537).

Standard range up to 13 strands, larger anchors on request.

Used for excavations, pylons, buildings and bridges
  • Different options available
    for the anchor head:
    restressable, adjustable,
    removable, monitored, ...
  • Dedicated equipment provided
    by Freyssinet for accurate work
  • Quick and easy installation

Cuttable Ground Anchors

Made of GFRP (Glass Fiber Reinforced Polymer) instead of steel, this innovative system is used to stabilize excavations: to allow subsequent drilling or excavation without the risk of obstruction by steel left in the ground after initial work, to prevent the spread of stray currents, or for tax reasons. There is no need to remove the tendons after use, Cuttable Ground Anchors can be easily cut or destroyed by any drilling or excavation equipment.
  • Economic, safe
    and reliable solution
  • Reduced weight
    and drudgery
  • Half the carbon
    impact of steel tendons

Freyssibar® anchors

Their main components are derived from the Freyssinet prestressing bar system (ETA-09/0169). The corrosion protection for temporary or permanent use and the injection system are specifically adapted to comply with international standards for ground anchors and tailored to project specifications.

Used for excavations, pylons, dams, buildings and bridges
  • Reliable system:
    use of certified components,
    in-house prefabrication,
    long-standing experience
  • Fine thread pitch allowing
    an accurate prestressing
  • Easy to install

Freyssi 500-E

The bar Freyssi500-E is a hot laminated bar made of reinforcing bar steel grade (500/550). It has ribs that form a thread along its entire length, allowing accessories (couplers and nuts) to be screwed in at any point. With its large range of diameters from 16 to 75 mm, it is used for all types of anchors: ground anchors, soil nails & rock bolts, micropiles, tie rods. The Freyssi500-E is designed with a left-hand thread.

Used for excavations, dams, pylons, buildings and bridges
  • Compliant with
    reinforcing bar standards
  • Rugged
  • Available on stock
    for quick delivery, easy to use

Freyssi 670-E

The bar Freyssi670-E is a hot laminated bar made of a specific steel grade (670/800). It has ribs that form a thread along its entire length, allowing accessories (couplers and nuts) to be screwed in at any point. With its large range of diameters from 18 to 75 mm, it is used for all types of anchors: ground anchors, soil nails & rock bolts, micropiles, tie rods. The Freyssi670-E is designed with a right-hand thread.

Used for excavations, dams, pylons, buildings and bridges
  • Reduced diameters
    than re-bars thanks
    to higher steel grade
  • Economic option (less steel)
  • Easy to use

Freyssi SD (Self Drilling)

The system is used for anchors installed in loose soil or where the borehole may collapse. It allows drilling, installation of the bar and grouting in a single operation, which avoids the use of a casing. The system consists of:Fully threaded hollow bars from R32 to T76 (higher diameters on request) Couplers, Nuts and anchor plates, Drill bits

Used for excavations, dams, pylons, buildings and bridges
  • High installation rate
  • Very good
    bonding capacity
  • Can be used in all types of soils
    thanks to a large range of drill bits

Download our brochure and technical datasheets

Documentation
Documentation
FreyssiCell, a load cell system

Freyssinet also supplies, under the brand FreyssiCell, a load cell system, which measures the force in the tendon during the work and throughout the life of the structure.

The system has a centralised measurement unit, which allows all cell-equipped ground anchors to be monitored from a single workstation. Other data acquisition systems can be connected on request.
7 standards models are available in stock, from 500 kN to 3100 kN.
Perfectly designed for all types of anchors (bars, strands, …), it is easy to install.

References

Anchoring systems for geotechnics
Our references in geotechnics

Homepage

Anchoring systems for geotechnics
Learn more

References

Anchoring systems for geotechnics
Our references in geotechnics

Homepage

Anchoring systems for geotechnics
Learn more