Driven piles made of ductile cast iron tubes

Driven piles made of ductile cast iron pipes are displacement piles and are used when soil strata have no or little load-bearing capacity. The piles transfer the loads to lower strata with higher load-bearing capacities. The piles are assembled from tubes made of ductile cast iron and are then filled with concrete. The segment lengths are joined together via a coupler integrated into the ductile cast iron tube.

Regulatory framework

The design and execution of applications (construction techniques) with driven piles made of ductile cast iron tubes is non-regulated. For relevant applications falling under the Building Codes, DIBt grants general construction technique permits (aBG), in combination with national technical approvals (abZ) for the products used, where needed. European Technical Assessments (ETAs) can also be issued for these construction products.

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

EAD 200043-01-0103 Pile pipes made of ductile iron (10 pages ) Version: August 2017; OJEU 2017/C 435/07; EOTA

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
  • 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.

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.

Z
new decision
E
supplement
Ä
amendment
V
renewal
G
valid until
Subject concerned Applicant Decision no. Validity
from / to
HLV-Pfahl System Porr Spezialtiefbau PORR Spezialtiefbau GmbH Walter-Gropius-Straße 23 80807 München Z-34.25-203 Z: 05.07.2024
G: 04.06.2029
TRM DUKTILRAMMPFAHL Tiroler Rohre GmbH Innsbrucker Straße 51 6060 HALL IN TIROL ÖSTERREICH Z-34.25-230 Z: 01.04.2022
G: 01.04.2027
vR DUKTUS duktiler Rammpfahl vR production (DUKTUS) gmbh Sophienstraße 52-54 35576 Wetzlar Z-34.25-248 Z: 18.07.2025
G: 25.06.2030