Technical lectures and work aids

We provide you with the sample calculations as input files for IngSoft EasyPipe. Their file ending is .epn. To download these files to your computer, please click on the desired file with the right mouse button and select Save target/link as ... Then, specify the destination directory on your hard drive.

Kindly note target file names and contained descriptions are in German.

Sample calculations IngSoft EasyPipe DWA-A 127-10 material parameters
Input file including alternatives (Professional Edition) for Thermoplastics
EPN, approx. 1,2 MB, 2021-01

Sample calculations IngSoft EasyPipe ATV-DVWK-A 127 trench installation
EPN, approx. 330 kB, 2014-07

Sample calculations IngSoft EasyPipe DWA-A 161 pipe jacking
EPN, approx. 860 kB, 2010-03

Sample calculations IngSoft EasyPipe DWA-A 143-2 liners
EPN, approx. 83 kB, 2014-04

Sample calculations IngSoft EasyPipe ATV-M 127-2 liners
EPN, approx. 70 kB, 2012-04

Sample calculations IngSoft EasyPipe SIA 190 trench installation
EPN, approx. 290 kB, 2013-09

Sample calculations IngSoft EasyPipe SIA 190:2017 + D 0263 trench installation
EPN, approx. 330 kB, 2018-06

Minimum specifications for statics according to DWA-A 143-2
PDF, approx. 1 MB, 2016-11

Flyer IngSoft statics FEM
PDF, approx. 340 kB, 2016-05

Graduate engineer (University of Applied Sciences) Frederik Müller, IngSoft GmbH, Nuremberg
Graduate engineer (Univ. Belgrade) Vladimir Lacmanović, IngSoft GmbH, Nuremberg

Electrical cables, fibre optic cables and other sensitive components of modern infrastructure are often laid in protective pipes in the ground. The protective role is usually played by plastic pipes made of polyethylene (PE), polypropylene (PP) or
polyvinyl chloride (PVC). The optimum wall thickness required for the economic efficiency and stability of these pipes can be determined by static calculations. A special feature here is the dimensioning of several pipes as a package or cable bundle.

Stability of buried cable conduits in bundles
PDF, approx. 1 MB, 2021-08

First publication in the magazine SUBSTANZ 8/2021 by URETEK, p. 26-29 as well as
Ernst & Sohn Special 2022 - Sewer and pipeline construction, p. 60-63

Pentru calculul static al conductelor îngropate, există diferite reglementări disponibile la nivel internațional. Acest articol descrie procedura de bază pentru dimensionarea țevilor profilate cu ajutorul fișei de lucru ATV-DVWK-A 127 (Germania), deoarece acest set de reguli naționale beneficiază, de asemenea, de o largă recunoaștere internațională.

Calculation modules for installation in the trench according to ATV-DVWK-A 127.

trenchlessromania-software-ingsoft-easypipe-2020-a127.pdf
PDF, approx. 650 kB, 2020-04

Published in in trenchlessromania Spring - Summer 2020, p. 24f.

Există multe motive pentru a utiliza metodele minim invazive trenchless pentru a instala conducte în subteran: nicio deplasare a solului, nicio distrugere a drumului ce ar implica o perturbare majoră a traficului, afectare minimă a zonelor rezidențiale, conservarea mediului și multe altele.

Calculation modules for trenchless installation according to DWA-A 161 and DWA-A 143-2.

trenchlessromania-software-ingsoft-easypipe-2019-a143-2.pdf
PDF, approx. 740 kB, 2019-11

Published in trenchlessromania November 2019, p. 30f.

Frederik Müller, IngSoft GmbH, Germany
Stephan Füllgrabe, PlaspiTec GmbH, Germany

For the static calculation of buried pipes, there are various regulations available on an international level. The publications of AWWA, SIA and DWA are important for pipe statics. This article describes the basic procedure for the dimensioning of profiled pipes using the ATV-DVWK-A 127 (Germany) worksheet, as this set of rules also enjoys great international recognition.

Structural analysis of profiled PE-HD pipes acc. ATV-DVWK-A 127
PDF, approx. 6.3 MB, 2019-04

Published in IMPROFIL (Magazine of KRAH PIPES) No. 19/2019, p. 16-21

Dr. Dietmar Beckmann (Engineer), S & P Consult GmbH, Bochum
Graduate engineer (Univ. Belgrade) Vladimir Lacmanović, IngSoft GmbH, Nuremberg

The structural engineering calculation of liners in non-permanently stable channels with egg-shaped section could previously only be carried out with very complex and expensive FEM analyzes for each individual case. Now, a new reliable calculation method is available, which is based on a specially developed framework model and can be automated for convenient operation.

Liner statics for channels with egg-shaped section in Host Pipe Condition III
PDF, approx. 1,1 MB, 2018-01

Published in the special issue Sewer and pipeline construction - construction and renovation by Ernst & Sohn-Special

Our partner for the Liner module for IngSoft EasyPipe, S & P Consult GmbH, published in its in-house magazine Innolines kompakt background information on the extension "Egg-shaped section in HPC III".

Innolines kompakt, edition October 2017

S & P Consult GmbH

IngSoft EasyPipe

Dietmar Beckmann, Heinz Doll and Vladimir Lacmanović

Many large interceptor sewers, predominantly installed under public roads, have been in use for over 100 years. They are made of brickwork or compressed concrete and often show serious damage, so that it would seem that long-term stability can no longer be guaranteed. As an alternative to replacing large profiles, various renovation procedures offer significant advantages with respect to investment costs, environmental protection and urban pollution. Depending on the procedure, it may well be possible to extend the service life, to match that of a replacement. However, beforehand, an in-depth study of the current stability and residual load capacity of the existing sewer is required, along with needs-based selection and dimensioning of the renovation procedure. The new standard DWA-A 143-2 serves as a good basis for the necessary static calculations.

Rehabilitation of large profiles lacking long-term stability
PDF, approx. 1.1 MB, 2016-02

Released in the magazine 3R international,special edition

by Dietmar Beckmann, Heinz Doll and Vladimir Lacmanović

Part 1: Determination of the condition and renovation procedure

The large wastewater collectors, which are mainly laid under public roads, have been in operation for more than 100 years. They are made of masonry or stamped concrete and often show such serious damage that lasting stability no longer seems to be guaranteed. As an alternative to a renovation, there are also various renovation methods available for large profiles, which offer clear advantages in terms of investment costs, environmental protection and urban stress.

Depending on the procedure, the extension of the useful life achieved in this way may well correspond to a renewal. The prerequisite is an in-depth investigation of the actual stability or residual capacity of the existing sewer and a needs-based choice and dimensioning of the restoration process. The new work sheet DWA-A 143-2 provides a good basis for the required structural engineering calculations, which are described in detail in Part 2, 3R issue 3/2016.

Renovation of large profiles lacking long-term stability part 1
PDF, 955 kB, 2016-02

Published in the magazine 3R

by Dietmar Beckmann, Heinz Doll and Vladimir Lacmanović

Part 2: Impacts of the DWA-A 143-2 on liner dimensioning

The large wastewater collectors, which are mainly laid under public roads, have been in operation for over 100 years. They are made of masonry or stamped concrete and often show such serious damage that lasting stability no longer seems to be guaranteed. As an alternative to a renovation, there are also various renovation methods available for large profiles, which offer clear advantages in terms of investment costs, environmental protection and urban stress.

Depending on the procedure, the extension of the useful life achieved in this way can certainly correspond to a renewal. The prerequisite is an in-depth investigation of the actual stability or residual capacity of the existing sewer and a needs-based choice and dimensioning of the restoration process. Part 1 of this technical report (3R issue 1-2/2016) was devoted to the condition assessment and remediation procedures. Part 2 below details the new worksheet DWA-A 143-2, which provides a good basis for the necessary structural engineering calculations.

Renovation of large profiles lacking long-term stability part 2
PDF, 438 kB, 2016-03

Published in the magazine 3R

Jacques Kohler and Dr. Dietmar Beckmann (Engineer)

The preparation of a single structural engineering calculation is usually not sufficient for the renovation of sewers and pipes that are no longer permanently stable (Host Pipe Condition III) with lining and assembly methods. Especially with changing cover heights and/or a fluctuating groundwater level, it is not possible to predict the exact combinations beforehand that will lead to the greatest stresses on the liner and the old pipe without more precise calculations. In addition, any annular gap present between liner and old pipe can either be favorable or unfavorable. For this reason, this report presents a systematic verification concept for the Host Pipe Condition III, which is already integrated in the new M127-2 compute module of the IngSoft EasyPipe software.

Host Pipe Condition III and groundwater: Verification concept for liners in channels lacking long-term stability
PDF, approx. 520 kB, 2013-12

Published in the magazine 3R

Graduate engineer (University of Applied Sciences) Frederik Müller, IngSoft GmbH, Nuremberg

The consideration of loads outside the current standards poses challenges to the providers of the structural engineering calculations for underground pipelines, duct structures and civil engineering projects. It is examined whether the Dimensioning Aircraft (DAC, in German: Bemessungsflugzeug BFZ) specified in 1970 cover the stresses from current passenger aircrafts (Boeing 747, Airbus A340 and A380).

Dimensioning aircrafts, Boeing 747, A340 and A380: Aircraft live loads in comparison
PDF, approx. 500 kB, 2012-09

Published in the special issue Sewer and pipeline construction - construction and renovation by Ernst & Sohn-Special

Graduate engineer (University of Applied Sciences) Frederik Müller, IngSoft GmbH, Nuremberg

The widespread approach of substitute surface loads from road traffic for underground pipelines and manhole structures will be replaced in the foreseeable future: It is replaced by the load models of the DIN Fachbericht 101 ("DIN Technical Report") for bridges, which focuses on individual wheel loads. The HGV 60 (SLW 60) according to DIN 1072 and the Load Model 1 according to DIN Fachbericht 101 are compared. A sample investigation of the soil pressures as well as the load distribution for the Load Model 1 takes place.

Soil pressures and load distribution under tandem vehicle LM 1
PDF, approx. 3.4 MB, 2012-03

Published in the magazine 3R

Karsten Reese and Ulrich Wallmann

The 3rd edition of the ATV-DVWK work sheet A 127 (structural engineering calculation of sewers and pipes) contains some obvious changes. In practical application, this results in additional implications that are not explicitly mentioned in the work sheet: For example, the use of material characteristics, obtained from long-term or short-term values, weighted in relation to the earth loads to the live loads necessitates separate stress analyzes for the individual load cases.

Notes to the 3rd edition of ATV-DVWK-A 127 and the structural engineering calculation of underground pressure pipes
PDF, approx. 740 kB, 2001-09

Published in the magazine 3R