Trenchless installation (new construction)

Static calculation of pipes: Pipe statics for Jacking Pipes

IngSoft exhibits at the Nürnberger Kolloquien zur Kanalsanierung 2023

The "Nürnberg Colloquia on Sewer Rehabilitation" with exciting lectures and accompanying trade exhibition will attract the public to Fürth on 21 September...


Pipe static software IngSoft EasyPipe v2.11 proves HDD

On 16 May we released our software IngSoft EasyPipe in version 2.11


Presentation on liner statics at Italia NO DIG LIVE 2023

IngSoft will be speaking at Italia NO DIG LIVE on 25 May 2023 in Milano.


Workgroup on DWA-A 127-11 (ES-5.11) road traffic loads founded

Preparation of a worksheet DWA-A 127-11 "Structural analysis of drainage systems - Part 11: Road traffic loads and associated fatigue analysis".


Calculation module A 161 / GW 312 for Jacking Pipes

The calculation module A 161 is used for the static calculation of Jacking Pipes and is based on the 2nd edition of worksheet DWA-A 161 / DVGW GW 312, March 2014 edition. This worksheet is the first set of rules to contain regulations for the static calculation of pipes with partial safety factors in accordance with the Eurocode (semi-probabilistic concept).

The contents of the DWA-A 161 worksheet and the DVGW GW 312 worksheet are the same. Specifically, the programme for pipe statics takes into account

  • DWA-A 161 / DVGW GW 312 2014 edition
  • Corrections to DWA-A 161 / DVGW GW 312 in May 2017
  • Corrections to DWA-A 161 / DVGW GW 312 in October 2017
  • Technical Note 4-2019 of DB Netz AG (Special regulations for steel press-through pipes for railway crossings)
  • Corrections to DWA-A 161 / DVGW GW 312 in September 2020 (material parameters, via worksheet DWA-A 127-10)

This allows you to examine all jacking methods (shield jacking, flush drilling, HDD, burst lining, etc.) of the regulations on straight and curved routes or as a curved drive.

Multi-layer Pressure Transfer Rings (PTR) in the preliminary design and CSV import of PTR tests are available. Jacking in loose rock and bedrock or mixed soils / transition area can be investigated. The calculation module determines the jacking force iteratively for the construction condition and performs the interaction check.

All required verifications for the operating condition are automatically performed in parallel, if necessary, e.g.

  • Fatigue check
  • Deformation verification
  • Proof of elongations
  • Proof of stability

Load-independent boundary conditions such as minimum reinforcement, sectional forces and wall thickness can be checked elegantly with IngSoft EasyPipe.