Soil Nails

Our soil nails, also called rock bolts, rock nails or SN-anchors, are threaded steel bars tendons.

They are available in the following grades:

BSt 500 / 550 ∅ 16 - 50 & 75 mm

S 555 / 700 ∅ 57,5 & 63,5 mm

S 670 / 800 ∅ 18 - 75 mm

Soil nails consisting of self-drilling hollow core steel bars are featured separately.

Threaded soil nails offer the following advantages:

  • Steel bars can be cut at any time and at any point along the bar. The remaining lengths remain screwable.
  • Splicing of bars using couplers is simple and uncomplicated.
  • The thread remains screwable even when dirty or damaged.
  • Thread provides maximum shear bond between steel bar and cement grout.

 

Soil nails made from solid rods are available in the following construction variants:

Temporary Soil Nails

Standard soil nails are usually fitted with a formed head plate and a spherical washer or domed nut. The dome-shaped construction of the head assembly enables angular deviations to be compensated.

Our standard product range also includes specialized nails for attaching steel wire nets, geotextiles and structural or non-structural facing panels.

In addition to the usual cement grout injection, soil nail tendons can also be anchored with epoxy resins or with the use of expansion shells. The latter have the advantage that nails can be loaded immediately after installation without having to wait for materials to cure.

Galvanized Soil Nails

Galvanization of soil nails is an option that is becoming increasingly popular. We have, therefore, specialized and can offer this product line fully or partially galvanized by different galvanization processes.

The galvanization technique which is the most suitable for any individual application must be checked on a case-by-case basis. Our staff are happy to further assist.

Our galvanizations are carried out in compliance with the following standards:

DIN EN ISO 2063 (Thermal Spraying)

DIN EN ISO 1461 (Hot-Dip Galvanization)

Permanent Soil Nails

This type of nail is supplied with a highly efficient factory-applied corrosion protection featuring pre-grouted encapsulation of the soil nail within a corrugated plastic sheathing.

Head assemblies are usually supplied without corrosion protection. They are either embedded in sprayed concrete or encapsulated in structural concrete.