Recommendation – Education – Networking
External task groups
Important topics relating to the HDD industry are dealt with within the association as described in specially established task groups. In addition, the DCA is also active in external task groups such as those of the DVGW or the Rohrleitungsbauverband.
The following task groups are currently active with DCA participation:
DCA responsible: Jörg Himmerich
Contact: Joerg.Himmerich@veenkergmbh.de
Status
For the DIN 30340-1 „Ummantelungen zum mechanischen Schutz von Stahlrohren und -formstücken mit Korrosionsschutzumhüllung – the part 1: Gütesicherung Werksummantelungen“ has already been published as a white paper in 2023.
Part 2 of DIN 30340, entitled „Ummantelungen zum mechanischen Schutz von Stahlrohren und -formstücken mit Korrosionsschutzumhüllung – part 2: Gütesicherung Nachummantelung und Reparaturmaterialien“ has also been published. All the coating systems available on the market are illustrated there.
Part 3 is available as a draft and will be published shortly.
DCA responsible: Julian Hirsch, Bohlen & Doyen Bau GmbH
Contact: j.hirsch@bohlen-doyen.com
Status
In mid-2023 the DCA was asked by Günter Konrad, Senior Site Manager and Chief Engineer at Ed. Zueblin AG, Chairman of the Construction Equipment List Revision (BGL 2025) task group, to participate in the revision. Following a vote by the board, Julian Hirsch from Bohlen & Doyen Bau GmbH was recruited as the DCA representative for this task group.
The revision will primarily focus on Chapter L, “Equipment for horizontal pipe jacking and pipeline construction”. The first step will be to check whether additional or larger equipment that is not included in other chapters of the BGL could be added. It may also be possible to specify reamers in more detail in a table. Technical and commercial data will then be determined.
According to current information, the processing for the BGL should be completed by autumn 2024.
Person responsible from the DCA: Dr. Tim Jaguttis
Contact:t.jaguttis@delamotte-partner.de
The DWA (German Association for Water, Wastewater and Waste) has started to revise the worksheet DWA-A 125 ‘Pipe jacking and related methods’. The worksheet, which is also published as a joint publication with DIN EN 12889, is being revised by the ES-5.3 task group. Among other things, the worksheet also describes the HDD process, which is why the task group was interested in DCA’s involvement. The task group has divided into the following sub-task groups:
- Planning
- Pipes
- Procedure
The DCA has nominated Dr Tim Jaguttis from DCA member company de la Motte & Partner GmbH to participate. He will participate in the ‘Procedure’ sub-task group.
DCA responsible: Jörg Himmerich
Contact: Joerg.Himmerich@veenkergmbh.de
Status
The DVGW, together with the DCA task group, is currently revising the technical features of the gas/water pipe crossing guideline and will then submit the revision to Deutsche Bahn AG.
DCA responsible: Marc Schnau
Contact: mail@x-plan-schnau.de
The new edition of DVGW GW 302 covers all trenchless technologies relevant to the gas and water sector in a three-part set of rules, whereby:
- GW 302-1 (A) was published in October 2023 and replaced the previous DVGW Worksheet GW 302 (2001-09 edition). It therefore already serves to assess the conformity of contractors in the field of trenchless rehabilitation and new pipe installation.
- GW 302-2 (A) deals with the process engineering for all relevant rehabilitation processes in which the utilisation of an existing pipeline route is carried out using or replacing the substance of the old pipeline. The preparatory draft of DVGW GW 302-2 is almost complete.
- GW 302-3 (A): will deal with the process technology for trenchless new installation methods without utilising an existing route. The preparation of this draft has not yet begun.
GW302-3 (A), Trenchless construction methods – Part 3: Laying of new pipelines – Process engineering will in future summarise the requirements of the trenchless laying methods commonly used in the gas and water sector, which, in addition to the flush drilling method (previously DVGW GW 321), include milling and ploughing methods (previously DVGW GW 324) and pipe jacking methods (previously DVGW GW 304). Due to the differences in the process technology, the following three sub-task groups (UAG) have been established in the Trenchless Construction Methods task group according to the aforementioned DVGW worksheets:
UAG 1: Horizontal directional drilling method
UAG 2: Milling and ploughing methods
UAG 3: Pipe jacking methods
UAG 1 will be chaired by DCA Vice President Marc Schnau. Andreas Hüttemann (Rohrleitungsbauverband) is responsible for administration and organisation. Other representatives of DCA member companies are also involved in this sub-task group.
Participants of the task group:
Andreas Hüttemann, RBV
Michael Hentrich, RBV/DVGW
Timo Mücke, Beermann
Julian Hirsch, Bohlen & Doyen
Thorsten Soppa, EWE Netz
Roland Stutzki, Hamburg Wasser
Ronald Siebel, TenneT
Jörg Himmerich, Veenker
Meinolf Rameil, Tracto-Technik
Andreas Meßner, Herrenknecht
Sebastian Lang, Bohrservice Rhein-Main
Marc Schnau, x-plan