UNITRACC - Underground Infrastructure Training and Competence Center

Lining with prefabricated pipes - description

Lining with prefabricated pipes is characterised by the pulling, pushing or driving-in of pipes (also lining pipes) into the section of the sewer to be rehabilitated.

One differentiates between:

Lining with continuous pipes
Lining with discrete pipes

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

(Image: Discrete pipe method - Pulling-in of discrete pipes into the …

Mar 02, 2011

Mar 16, 2006

Process

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])

Feb 28, 2006

Terminology

DIN EN 13566

Lining pipe

Lining pipe:
Pipe to be inserted for renovation purposes [DINEN13566-1:2003].

Liner

Liner:
Lining pipe after installation [DINEN13566-1:2003].

Lining system

Lining system:
Lining pipe and all relevant fittings for insertion into an existing pipeline for the purposes of renovation [DINEN13566-1:2003].

Feb 28, 2006

Standards and regulations dealing with lining with continuous pipes

European standards:

DIN EN 752-5: Drain and sewer systems outside buildings - Part 5: Rehabilitation (11.1997)

DIN EN 13380: General requirements for components used for renovation and repair of drain and sewer systems outside buildings (10.2001)

DIN EN 13566: Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks
Part 1: General (04.2003);
Part 2: Lining with continuous pipes (02.2006)
Partl 3: Lining with …

Mar 16, 2006

Method variants of lining with continuous pipes with annular space

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 …

Mar 16, 2006

Procedure

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

Mar 16, 2006

Staff and equipment required

(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 …

Mar 02, 2011

Lining with continuous pipes

Mar 23, 2006

Conventional lining with continuous pipes

Principle of procedure

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

In this process, a correspondingly long, flexible continuous pipe of HD-PE with a circular cross section is pulled from an excavation into the pipe sector to be rehabilitated in one operation with the help of a winch . The remaining annular space between the liner and the inner wall of the sewer is grouted.

Mar 16, 2006

Conventional lining with continuous pipes

Excavation preparation for pulling-in a continuous pipes

(Image: Attention!) The length of the pulling-in excavation is determined by the permissible pipe bending radii.
If a plastic pipe is bent, the outer fibres of the outside pipe are strained. When the pipe is pulled-in, it is additionally strained by the tensile strength.	(Image: Loads of outer fibres of the continuous pipe when pulled in)

Mar 02, 2011

Conventional lining with continuous pipes

Mar 23, 2006

Corrugated pipe process

Principle of procedure

A further representative of the sliplining process is the corrugated or spiral pipe process (not found), which the manufacturer of the special three-layer pipes has designated as the "Flexoren Process".

(Video: Corrugated pipe - Pulling-in of the inliner into the section to be rehabilitated)

A pull head is attached to the end of the continuous pipe in order to make the pulling-in process easier and an insertion funnel is placed at the start of …

Mar 23, 2006

Corrugated pipe process

Practical examples

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

(Image: Corrugated pipe process - Guiding the corrugated pipe into the section of the sewer to be rehabilitated [FI-Upono])

Mar 02, 2011

Corrugated pipe process

Jun 06, 2006

Lining with discrete pipes

Discrete pipe method - description

Cyclical (discontinuous) installation of self-supporting discrete pipes into the pipeline to be rehabilitated.

The connection of the discrete pipes for the production of the lining pipe is either carried out in the pipeline to be rehabilitated or in the starting shaft or in the starting excavation.

(Image: Installation of a GRP-discrete pipe into the starting excavation)

(Image: Taking-up and driving -in of the GRP pipes: step 2)

(Image: Driving-…

Mar 02, 2011

Lining with discrete pipes

Jul 06, 2009

Lining with prefabricated pipes with annular space

The lecture describes the different method variants and systems of lining with prefabricated pipes with annular space especially the lining with continuous and discrete pipes.

May 27, 2019

BE-15 Replacement Module: Gallery techniques (heading) - Part I - Fundamentals

BE-15 Replacement: Gallery Techniques (Heading) - Part I - Fundamentals

Content

This lecture deals with the fundamentals of trenchless replacement of supply and disposal lines by means of gallery techniques (heading).

May 27, 2019

BE-15 Replacement Module: Gallery techniques (heading) - Part I - Fundamentals

Classification in main process groups

Replacement method - specification

Definition according to DIN EN 752

Replacement:
Construction of a new drain or sewer, on or off the line of an existing drain or sewer, the function of the new drain or sewer incorporating that of the old [EN752:2008].

The replacement is always carried out at least in section lengths of the sewer using:

The open cut method ;
The semi open cut method ;
The trenchless method.

(Image: Replacement of sewers using the open cut method)

(Image: …

May 27, 2019

BE-15 Replacement Module: Gallery techniques (heading) - Part I - Fundamentals

Classification in main process groups

Overview of the trenchless replacement methods

(Image: Overview of replacement methods in trenchless construction)

May 27, 2019

BE-15 Replacement Module: Gallery techniques (heading) - Part I - Fundamentals

BE-15 Replacement: Gallery Techniques (Heading) - Part I - Fundamentals

Classification in main process groups

May 27, 2019

BE-15 Replacement Module: Gallery techniques (heading) - Part I - Fundamentals

Process specification

During gallery techniques or heading, the sewer or pipeline to be replaced is exposed, with the provision of a temporary protection, dismantled and replaced by a new one. The removal of the soil and the sewer or pipeline to be replaced is carried out manually with the aid of appropriate tools or machines e.g. excavators. Support arches of steel rods or special steel profiles that are placed into the gallery cross-section provide temporary support. …

May 27, 2019

BE-15 Replacement Module: Gallery techniques (heading) - Part I - Fundamentals

BE-15 Replacement: Gallery Techniques (Heading) - Part I - Fundamentals

Process specification

May 27, 2019