Ground anchors
Ground anchors are prestressed anchor systems for transmitting tensile forces into the load-bearing ground, e.g. for anchoring shoring systems or slope stabilisation. Ground anchors consist of tendons that are grouted into the surrounding ground over the fixed anchor length, i.e. the length over which tensile forces are transmitted, and anchor heads that transmit the tensile forces of the tendons to the structure.
Regulatory framework
The corresponding specifications of DIN EN 1537 in conjunction with DIN/TS 18537 do not contain conclusive technical rules for the permanent use of ground anchors (permanent anchors).
DIBt grants general construction technique permits (aBG) for permanent back-tying of structures by means of ground anchors (construction technique) and national technical approvals (abZ) for the ground anchor systems used as permanent anchors. European Technical Assessments (ETAs) can also be issued for the anchor systems.
National technical approvals and general construction technique permits can be granted together in a single decision ('combined decision').
The executing company must submit a declaration of conformity stating that the tie backs executed with the ground anchors comply with the provisions of the relevant construction technique permit.
The temporary use of ground anchors (< 2 years) does not require a regulatory verification of fitness for use or application. Unless additional design values for the anchor heads are needed for the structural analysis, there is no need for a verification of fitness for use or application.
Please also refer to the applicable Technical Building Rules, cf. MVV TB Part A 1.
National procedure
To prepare an abZ/aBG for your construction product, we need an application from you. We recommend that you contact us prior to doing so. Feel free to send us your enquiry informally via email to dibt(at)dibt(.)de or to the competent technical contact listed in the top right.
For a first assessment, please send us the following information:
- Description of the construction product and its intended field of use
- e.g. material, configuration, number of sizes, variants, dimensions
- e.g. use in walls, ceilings, interior construction, building services
- Description of the construction technique and its field of application
- e.g. design of walls, ceilings, elements, etc., and interaction of components
- e.g. application in foundation engineering, reinforced concrete construction, building insulation; as load-bearing or non-load-bearing component; under static and quasi-static loading; fire exposure; other environmental exposures
- Information regarding impact on regulatory concerns
- in particular structural integrity, fire protection, health and environment protection, sound insulation as well as thermal performance
- Explanation of need for an abZ/aBG
- Do you significantly deviate from the Technical Building Rules?
- Or do neither Technical Building Rules nor generally recognised technical rules exist?
- Contact details
- preferably email address and/or telephone number, as well as name, organisation/company, and postal address
We will then contact you to clarify the next steps.
If you already hold a DIBt approval and/or construction technique permit and wish to apply for an amendment, supplement, or renewal, please use the form provided below.
- pdf-Datei Application for amendment / supplementation / renewal of a national technical approval and/or construction technique permit (4 pages ) Last updated: 10 April 2024; Application form
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.
- pdf-Datei Form for requesting a European Technical Assessment (ETA) (2 pages ) Last updated: 11 March 2025
| Subject concerned | Applicant | Decision no. |
Validity
from / to |
|---|---|---|---|
| MÜNCH Ankerköpfe für Verpressanker für 2 bis 9 Litzen / 0,6" und 0,62" | Richard Münch GmbH Rüther-Münch-Straße 1-3 07926 Gefell | Z-13.8-138 |
Z:
11.11.2022 G: 15.11.2027 |
| BBV Ankerköpfe für Verpressanker für 2 bis 31 Litzen | BBV Systems GmbH Industriestraße 98 67240 Bobenheim-Roxheim | Z-13.8-142 |
Z:
12.08.2024 G: 18.06.2029 |
| Ankerköpfe für Verpressanker für 2 bis 22 Litzen | DYWIDAG-Systems International GmbH Neuhofweg 5 85716 Unterschleißheim | Z-13.8-152 |
Z:
17.08.2022 G: 01.09.2027 |
| Ankerköpfe für Verpressanker mit 2 bis 12 Litzen | SPANTEC Spann- & Ankertechnik GmbH Am Geopark 1 86701 Rohrenfels | Z-13.8-154 |
Z:
22.03.2024 G: 26.03.2029 |
| Ankerköpfe für Verpressanker für 1 bis 37 Litzen | ANP - Systems GmbH Christophorusstraße 12 5061 ELSBETHEN ÖSTERREICH | Z-13.8-155 |
Z:
14.10.2025 G: 14.10.2030 |
| PORR Ankerköpfe für Verpressanker für 2 bis 22 Litzen | PORR Spezialtiefbau GmbH Walter-Gropius-Straße 23 80807 München | Z-13.8-163 |
Z:
21.10.2025 G: 21.10.2030 |
| DYWIDAG-Daueranker (Einstabanker) für Boden und Fels mit Stahlzuggliedern aus: St 950/1050 Ø 26,5 mm, Ø 32,0 mm, Ø 36,0 mm und Ø 40,0 mm | DYWIDAG-Systems International GmbH Neuhofweg 5 85716 Unterschleißheim | Z-20.1-17 |
Z:
21.08.2023 G: 01.07.2028 |
| SUSPA-Felsanker | DYWIDAG-Systems International GmbH Neuhofweg 5 85716 Unterschleissheim | Z-20.1-53 |
Z:
05.10.2022 G: 24.04.2027 |
| SUSPA-Kompaktanker für Fels und Boden | DYWIDAG-Systems International GmbH Neuhofweg 5 85716 Unterschleißheim | Z-20.1-64 |
Z:
12.09.2022 G: 19.03.2027 |
| Daueranker Typ "Litzenwellrohranker" aus 2-12 Litzen 0,6"/0,62" St 1570/1770 und St 1660/1860 | BAUER Spezialtiefbau GmbH BAUER-Straße 1 86529 Schrobenhausen | Z-34.11-201 |
Z:
19.03.2024 G: 03.01.2029 |
| Stump-Felsanker | PORR Spezialtiefbau GmbH Walter-Gropius-Straße 23 80807 München | Z-34.11-223 |
Z:
27.02.2023 G: 02.06.2027 |
| Stump-Kompaktanker für Fels und Boden | PORR Spezialtiefbau GmbH Walter-Gropius-Straße 23 80807 München | Z-34.11-224 |
Z:
28.11.2025 G: 02.06.2027 |
| DYWIDAG-Daueranker (Einstabanker) für Boden und Fels mit Stahlzuggliedern aus: B500B-GEWI Ø 40 mm und Ø 50 mm und S 555/700-GEWI Ø 63,5 mm | DYWIDAG-Systems International GmbH Neuhofweg 5 85716 Unterschleißheim | Z-34.11-225 |
Z:
28.07.2025 G: 14.04.2030 |
| SPANTEC-Daueranker (Einstabanker) für Boden und Fels mit Stahlzuggliedern aus: St 950/1050 Ø 26,5 mm, Ø 32,0 mm, Ø 36,0 mm und Ø 40,0 mm | SPANTEC Spann- & Ankertechnik GmbH Am Geopark 1 86701 Rohrenfels | Z-34.11-231 |
Z:
16.12.2022 G: 25.07.2027 |
| BBV Verpressanker mit Stahlzuggliedern aus 2 bis 31 0,6"/0,62"-Spanndrahtlitzen St 1570/1770 und St 1660/1860 | BBV Systems GmbH Industriestraße 98 67240 Bobenheim-Roxheim | Z-34.11-234 |
Z:
19.12.2024 G: 19.12.2029 |
| SPANTEC Verpressanker mit Stahlzuggliedern aus 2-22 Litzen, 0,6"/0,62" Spanndrahtlitzen St 1570/1770 und St 1660/1860 | SPANTEC Spann- & Ankertechnik GmbH Am Geopark 1 86701 Rohrenfels | Z-34.11-236 |
Z:
12.09.2022 G: 18.07.2027 |
| BAUER Verpressanker mit Stahlzuggliedern aus 2 - 12 Litzen, 0,6"/0,62" Spannstahllitzen St 1570/1770 und St 1660/1860 | SPANTEC Spann- & Ankertechnik GmbH Am Geopark 1 86701 Rohrenfels | Z-34.11-242 |
Z:
24.05.2024 G: 16.05.2029 |
| Fels- und Bodenanker System SAS mit Gewindestäben S 670/800, Durchmesser 18 bis 63,5 mm | Stahlwerk Annahütte Max Aicher GmbH & Co. KG Max-Aicher-Allee 1-2 83404 Ainring-Hammerau | Z-34.11-246 |
Z:
18.06.2025 G: 18.06.2030 |
| Fels- und Bodenanker System SAS mit Gewindestäben aus Spannstahl Y1050H, Durchmesser 17,5 bis 40 mm | Stahlwerk Annahütte Max Aicher GmbH & Co. KG Max-Aicher-Allee 1-2 83404 Ainring-Hammerau | Z-34.11-247 |
Z:
21.08.2025 G: 21.08.2030 |
| SAS Daueranker (Einstabanker) für Boden und Fels mit Stahlzuggliedern aus B500B Ø 40 mm, Ø 50 mm und S555/700 Ø 63,5 mm | STAHLWERK ANNAHÜTTE Max-Aicher GmbH & Co. KG Max-Aicher-Allee 1+2 83404 Ainring - Hammerau | Z-34.11-251 |
Z:
17.05.2023 G: 17.05.2028 |