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Aug 03, 2023

Modules

This lesson builds on the module "Application of coding systems using the example of EN 13508-2" and introduces the coding of damage (findings) for sewers and drains. In more detail, the causes and consequences of damage are explained for the damage and, in some cases, the damage mechanisms are presented as well.

Upon successful completion of this course, you will be able to:

  • apply the coding system according to EN 13508-2
  • classify damage
  • name causes and consequences of damage

Sep 01, 2022

News

Jon Excell

With the UK water sector in crisis The Engineer's weekly poll asks whether you think the industry should be renationalised?

Sep 06, 2022

News

SAERTEX multiCom® GmbH

With firm confidence in the innovative technology from over 100 successful installation projects worldwide, SAERTEX-LINER® H₂O has been selected again for the rehabilitation of a 2.4 km long water supply pipeline in Bełchatów, Poland.

Jun 14, 2023

News

Clémence Carayol

OptionX Group has expanded its offering to the drilling, tunnelling and boring industries by entering an agency agreement with the German company MTS Microtunnelling Systems. This agreement will see OptionX Group become the exclusive seller of MTS equipment across Australia and New Zealand

Jun 30, 2023

News

Melissa Bailey

Project will allow the utility to produce 1.6 MW of renewable electricity and avoid over 9,000 metric tons of CO2e emissions per year.

Feb 22, 2021

News

TEPPFA aisbl

TEPPFA, the leading voice of European manufacturers of plastic piping systems welcomes TeraPlast’s decision to renew its membership.

Dec 15, 2020

News

CADENAS GmbH

3D CAD models & product data satisfy increasing demand on digital information and improves customer service.

Sep 06, 2021

News

Sedaru, Inc.

Sedaru OMNI Optimizes Asset Management and Improves Decision-Making for Water Utilities

Aug 15, 2022

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Desiree Willis

Successful Employment of Mine Development Machine in Fresnillo, Mexico

Jan 07, 2021

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Carissa Boudwin

Utilities Purchasing Electro Scan Equipment for ‘Self-Testing’ CIPP Grew 60% in 2020

Jan 08, 2021

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The Penetron Group

The January 2021 commissioning of the new wastewater treatment plant (WWTP) for Cayucos, California provides the community with its own treatment facility. PENETRON ADMIX-treated concrete was used for the facility’s various processing tanks to provide protection from the aggressive environment.

Sep 13, 2022

News

SAERTEX multiCom® GmbH

SAERTEX-LINER® H₂O, which has been successfully installed more than 100 times around the world, will be used to reline an important 2.4 km pipeline in Poland.

Mar 20, 2006

Modules

This module introduces the method variants of the lining with continuous pipes without annular space (close-fit).

The six-part series of lectures about the "lining with continuous pipes" provides an overview of the limiting conditions, applied material, method variants as well as the possibilities of the quality assurance when applying these renovation measures.

Part 3 "Lining with continuous pipes with annular space" describes the different method variants and systems as well as their areas and limits of application.

The aim of this lecture is to give an overview …

DIN EN 13566

Lining with continuous pipes

Lining with continuous pipes:
Lining with pipe made continuous for the length of the section to be renovated prior to insertion, and which has not been shaped to give it a cross-sectional diameter smaller than its final diameter after installation [DINEN13566-1:2003].

(Image: Conventional sliplining process with annular space with reference to [FI-Teerb] - Depiction of principle [Image: S&P GmbH])

Conventional sliplining process

(Image: Conventional sliplining process with annular space [FI-Teerb] - View of the pulling-in excavation with continuous pipe)

excavation required

(Image: Conventional sliplining process with annular space with reference to [FI-Teerb] - Depiction of principle [Image: S&P GmbH])

Corrugated pipe process

(Image: Corrugated pipe process - Inserting the corrugated pipe into the entry manhole (Baypren) [FI-Phoena])

installation …

(Image: Sequence diagram for the lining with continuous pipes with annular space)
(Image: Equipment for lining with prefabricated pipes with anular space)

The lining with continuous pipes with annular space requires the following equipment:

  • Staff of 4-6 persons on construction site
  • Possibly devices and machines for installing and securing the excavation (e.g. excavator, supporting elements)
  • Heating element butt welding equipment and power set
  • Winch with corresponding tensile strength
  • Pulling head
  • Roller blocks
  • Lifting device
  • Compulsory …
(Image: Cleaning)
(Image: Inspection)
(Image: Damages)

Old sewer

  • Taking out of operation (securing of drainage capability)
  • Cleaning
  • Optical inspection
  • Removal of roots, deposits and other drainage obstacles
  • Probable sealing of groundwater infiltrations
  • Measurement and calibration of the section that is to be rehabilitated
  • Probable creation of an excavation for installation (dependent on process variant and nominal size)
(Image: Support device for pipe sealing and pipe testing apparatus [FI-Beck])

To secure the drainage capability within the scope of the employment of cured-in-place lining processes, the following possibilities are at hand:

  • Interruption of the drainage capability by limiting backwater in the sewer above the section that is to be rehabilitated
  • Maintaining the drainage capability by measures external of the sewer that is to rehabilitated
(Image: Maintaining …
(Image: Inspection)

The following aspects are to be considered during inspection:

  • Deviations in the inner diameter
  • Direction changes
  • Displaced joint
  • Laterals
  • Ground water infiltrations
  • Flow obstacles
  • Deformations
  • Cracks, fragments, break

Obstacle elimination

Pipe reductions, expansions or slight direction changes are obstacles that do not necessarily impede the installation of a lining pipe or put the operating safety at risk. The contracting parties have to agree on whether a correction is needed or not [RSV3].

(Image: Determining the minimum cross section with inflatable calibration measuring apparatus)

Calibration

For the correct use of lining processes, it is necessary to obtain …

(Image: Conventional sliplining process with annular space [FI-Teerb] - View of the pulling-in excavation with continuous pipe) (Image: Bursting of the to be replaced pipeline and simultaneous pulling-in of the HD-PE continuous pipe - view into the insertion pit (Grundoburst process))