Construction products detail

Soil nailing

Soil nailing is a measure used to increase the tensile and shear strength of the soil to such an extent that the nailed soil can be considered as a monolithic block for verification purposes. Soil nailing is used for securing slopes or walls of construction pits or stabilising steep slopes. They can be executed as temporary or permanent installations.

Regulatory framework

There are no conclusive technical rules for the design and execution of soil nailing measures.

For relevant applications falling under the Building Codes, DIBt grants general construction technique permits (aBG) for the design and execution of the soil nailing measure, in combination with national technical approvals (abZ) for the products used, where needed. European Technical Assessments (ETAs) can also be issued for construction products used in soil nailing.

The executing company must submit a declaration of conformity stating that the executed soil nailing measure complies with the provisions of the construction technique permit.

National procedure

A national technical approval (abZ) and/or oder general construction technique permit (aBG) is granted upon application (see Model Building Code (MBO), Sections 16a(2) and18(2) and (4)). This also applies to amendments and supplements to, or renewals of existing approvals and/or construction technique permits.

No formal requirements apply. The following information is needed: name and address of the applicant, description of the product and/or construction technique and its field of use or application, type of decision required (new decision, amendment or supplement to, or renewal of, an existing decision).

Please feel free to use the template below.

European Technical Assessment (ETA)

To start the ETA procedure, please submit the form below. We will then check if the prerequisites for issuing an ETA are met, i.e., in particular, if the product is not fully covered by an existing harmonised standard. If the prerequisites are met, we will check whether a European Assessment Document (EAD) covering the requested assessment scope already exists or still needs to be developed. If an EAD needs to be developed or amended, a complete technical file needs to be established before the procedure can begin.


new decision
valid until
Subject concerned Applicant Decision no. Validity
from / to
Bodenvernagelung System "BAUER" BAUER Spezialtiefbau GmbH BAUER-Straße 1 86529 Schrobenhausen Z-20.1-101 Z: 20.04.2022
G: 03.09.2026
Bodenvernagelung System "Stump" Stump-Franki Spezialtiefbau GmbH Walter-Gropius-Straße 23 80807 München Z-20.1-104 Z: 21.08.2020
G: 01.09.2025
Bodenvernagelung System "DYWIDAG" DYWIDAG-Systems International GmbH Neuhofweg 5 85716 Unterschleissheim Z-20.1-106 Z: 10.06.2022
G: 03.05.2027
Bodenvernagelung System "BBV" BBV Systems GmbH Industriestraße 98 67240 Bobenheim-Roxheim Z-20.1-108 Z: 17.07.2021
G: 03.04.2026
Bodenvernagelung mit Hohlstäben System DYWIDrill DYWIDAG-Systems International GmbH Neuhofweg 5 85716 Unterschleißheim Z-34.13-208 Z: 17.09.2023
G: 15.08.2028
Bodenvernagelung System "SAS" mit Zuggliedern aus Betonstabstahl B500B mit Gewinderippen - SAS 500, Ø 16, Ø 20, Ø 25, Ø 28, Ø 32, Ø 40, Ø 43 und Ø 50 mm Stahlwerk Annahütte Max Aicher GmbH & Co. KG Max-Aicher-Allee 1-2 83404 Ainring-Hammerau Z-34.13-226 Z: 23.08.2021
G: 31.03.2026
Bodenvernagelung System "SAS" mit Zuggliedern aus Stabstahl mit Gewinderippen S 555/700 (SAS 555), Ø 57,5 und Ø 63,5 mm Stahlwerk Annahütte Max Aicher GmbH & Co. KG Max-Aicher-Allee 1-2 83404 Ainring-Hammerau Z-34.13-227 Z: 07.05.2021
G: 03.03.2026
Bodenvernagelung System "SPANTEC" SPANTEC Spann- & Ankertechnik GmbH Am Geopark 1 86701 Rohrenfels Z-34.13-235 Z: 25.05.2022
G: 17.03.2027
Bodenvernagelung DSI Hohlstab-System R32 bis R51 DSI Underground Austria GmbH Alfred Wagner Strasse 1 4061 Pasching ÖSTERREICH Z-34.13-250 Z: 27.02.2023
G: 27.02.2028