References

Construction of the Neckarenztal pipeline (NET) – high-pressure gas pipeline DN 500 made of steel, incl. 17 pipe jackings DN 500

References

Construction of the Neckarenztal pipeline (NET) – high-pressure gas pipeline DN 500 made of steel, incl. 17 pipe jackings DN 500

Client

terranets bw GmbH

Contact person

Dipl.-Ing. Gerd-Dieter Berentzen

Start of construction

12/2021

Construction time

12 months

Scope of services

Construction of a DN 600 high-pressure steel gas pipeline, including 11 HDD drillings (6,980 m); 3 direct pipe drillings (219 m); 3 microtunnels (325 m); 44 pile-drivings (1,327 m); 2 horizontal drillings (127 m); 8 drillings with pilot pipe jacking (447 m) and 81 culverts, as well as the crossing of 2 highways and a railroad line. In addition, two valve stations and one pigging station were built.

Technical specifications:

Diameter: 610 x 14.3/15.9/16.2 mm

Material: L 360 NE

Welding process stem: automatic welding (135)

Length: 38,000 m

Design pressure: 100 bar

Coating: PE (open laying) and PE/GRP (pipe jacking)

Work carried out:

Site preparation and clearance

Dewatering work

Pipe trench excavation and backfilling

Culvert laying using dry and wet methods

Liquid soil installation

Welding and pipe construction work

Pressure testing and pipe drying

Cathodic corrosion protection work

Road and asphalt road construction

Topsoil removal and application including deep loosening

Shoring work

Pipe jacking using the DN 500 press drilling method

Working on slopes

Pipe transportation and export

Wrapping work

Laying cable conduit system

Drainage work