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Jul 21, 2022 News Aqua Assets Aqua Assets subsidiary Asset Training is dedicated to providing training in water and waste management and industrial maintenance services.
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Jul 22, 2022 News RTi NordiTube Technologies has established a global position as a technology provider for trenchless pipe rehabilitation systems.
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Jul 26, 2022 News Jenna May Auckland’s biggest-ever water project – a $400 m water transmission pipeline from Manukau to Khyber Pass – has been completed after more than a decade in construction.
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Oct 27, 2023 News Deltek UK Megan Miller, director of product marketing at Deltek, shares her thoughts on how we can see more women in science, technology, engineering, and mathematics (STEM) careers, helping young girls and women understand what a career in engineering looks like.
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Oct 30, 2023 News Vivien Topalovic Pezzimenti Trenchless has showcased the strength of microtunnelling through its work on a sewerage project.
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(Video: Robert Stein - Introduction to Trench Protection 2023 - Neu) |
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(Video: Robert Stein - Introduction to Pipe Installation 2023) |
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Jan 05, 2022 News Tabitha Mishra Steel, clay, plastic and composite pipes range in lifespans, which can be expanded based on maintenance. However, not all are best for every trenchless project.
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Jan 07, 2022 News Megan Hannah West Virginia American Water announced that it has completed its acquisition of Page-Kincaid Public Service District’s water distribution system. The company now owns and operates the system as part of its New River system.
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Feb 18, 2022 The renovation of sewers and pipelines with "Lining with cured-in-place pipes" is an established standard construction method, starting with the planning process, through material production and installation, right up to checking the quality achieved. It is characterized by a wide range of applications and a high variance in the fabrication and application processes. This module teaches the essential basics in relation to the fabrication of the lining tube and its installation. After completing this module, you will have a sound knowledge of:
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(Video: Lecture Video Lining with Cured-In-Place Pipes - basics) |
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In the following, special attention is paid to integral solutions. These include:
[EN752:2017] The rehabilitation of the existing sewer structure can be carried out through main rehabilitation methods; repair, renovation or replacement. (Image: Picto Repair connections) (Image: Picto Renovation) (Image: Picto Replacement) Repair… |
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Definitions of the main rehabilitation groups according to EN 16323: (Image: Repair (Rectification of local damage) (Image: Lining with cured-in-place pipes) (Image: Replacement using trenchless technology (pipe bursting) ) Repair: Rectification of local damage with full or partial use of the host pipeline Renovation: Work that incorporates all or part of the original structure of the drain or sewer to improve its current performance. Replacement: The construction … |
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Important: In many cases, repairing localized damage—referred to as point repair—is the most cost-effective option. When there are multiple instances of point repair or extensive damage, rehabilitation can be achieved either through renovation or replacement. If hydraulic overloading or a reduction in cross section caused by renovation measures cannot be accepted, replacement becomes the only viable option. (Image: Locally limited damage) (Image: Repeated … |
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The diagram illustrates a simplified decision-making process for selecting the appropriate structural solution for rehabilitation. The decision-making process focuses on the following aspects:
(Image: Decision process for the selection of structural solutions with reference to DIN EN 752-5 [DINEN752-5b]) |
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In the case of lining techniques, sectional self-supporting full linings for sewers are created using:
(Image: Lining with prefabricated pipes) (Image: Lining with site manufactured pipes) (Image: Lining with site manufactured and hardened pipes) "Lining with cured-in-place pipes" is part of the group of lining techniques using site-manufactured and hardened pipes |
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Full linings serve to restore or enhance resistance against physical, chemical, biochemical and/or biological attacks, prevent the formation of new incrustations, and restore and/or increase the static load-bearing capacity and water tightness.
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A distinction is made between the following lining techniques:
Full lining (Image: Lining with prefabricated pipes) (Image: Lining with site manufactured pipes) (Image: Lining with site manufactured and hardened pipes) Lining with prefabricated segments (Image: … |
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(Image: Icon: Recht) 1. Lining Tube A flexible tube consisting of carrier material, resin system, and optional membranes and/or reinforcement. These components are combined before the tube is inserted into the pipe to be lined [ISO 11296-4]. 2. CIPP Product (Cured-in-Place Pipe Product) A cured-in-place pipe of a specific design, produced from a liner made of specified materials. The wall structure is uniquely defined for each diameter/wall thickness … |
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(Image: Picto Lining with cured in place pipes) In the lining procedure using cured-in-place pipes (CIPP), a prefabricated, flexible tube (referred to as a lining tube) is inserted into the sewer section to be renovated. The lining tube consists of carrier material and, if applicable, reinforcement material, and may include internal or external membranes (e.g., foils or coatings). Once in place, the lining tube is pressed against the inner wall of … |
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The rehabilitation objectives for lining with cured-in-place pipes (CIPP) align with the general objectives of other lining techniques. These objectives are detailed in the following table: (Table: Rehabilitation objectives and requirements for lining techniques) |
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