Trenchless pipe rehabilitation of large sewers by Trolining's GIPP method
Feb 07, 2008
More and more sewer network owners and operators choose the GIPP method for the rehabilitation of their conduits
Since the early 90es Trolining GmbH, Germany is an internationally recognized expert in the field of trenchless pipe rehabilitation. Its patented GIPP (Grouted-in-place pipe) method has been successfully installed in about 20 countries around the globe. The continuously growing demand for reliable methods for the reinstatement of large sewers was a clear sign for Trolining to further increase the effectiveness of its system in that market segment. Pipes sizes between diameter 800mm (32”) and 2000mm (80”) I.D. today represent Trolining’s main field of application, regardless of whether the cross-sectional pipe profile to be rehabbed is circular or a special geometry.
The TROLINING trenchless pipe rehabilitation system is based on various HDPE (High Density PolyEthylene) liner components which can be combined in a wide range of alternative configurations. The heart of the system is the Troliner with its V-shaped embedment studs. The annular void created by the studs is filled with TROLINING Injektor, a specially engineered injection grout. This high-strength grout fixes the Troliner permanently in place and provides the load-bearing shell of the system.
TROLINING liners are available for pipes ranging from 250mm to 2000mm (10” to 80”) I.D.. Segmental lining sheets are offered for rehabilitation of lines greater than 2000mm (80”) I.D. and for elbows and corners in man-sized lines. The rehab system improves the host pipe’s flow characteristics and provides exceeding mechanical and chemical resistance.
Every liner is tailor made according to the exact measurements taken on the job site. That procedure guarantees the systems „Close-fit“ characteristics, thus limiting the cross sectional reduction to an absolutely minimum. Prior to the liner insertion, the pipe section to be rehabilitated is plugged-off at both ends, cleaned and visually inspected. A cable winch is then used to unroll each HDPE liner from its transport drum and draw it through the line into position. After insertion, all HDPE liners are welded together at their both ends. The resulting liner –“sandwich” is then inflated with a defined pressure through passages in the temporary plugs closing the ends of the liner section.
When the required inflation pressure is attained, the annular void is filled with TROLINING injection grout fed from the down stream end. The grout’s extremely low viscosity ensures 100% grouting of the annular void, even for long distances. Additional grout characteristics are a defined material expansion and an exceeding short term strength. The latter is decisive to keep the interruption time at an acceptable low level.
Further information:
Trolining GmbH
Mr Jens Kirste
Muelheimer Str. 26
53840 Troisdorf
Germany
Phone: +49 2241 853125
E-Mail: info@trolining.de
Internet: www.trolining.com
More News and Articles
Apr 26, 2024
News
Bothar’s cutting head innovation
The trenchless industry in Australia continues to grow and the need to provide customised solutions becomes vital for a leading subsurface contractor.
Recognising the need for advanced solutions to meet the growing …
Apr 24, 2024
News
Sustainable drainage solutions: German Start-up transforms urban water management.
Germany boasts a well-established infrastructure for managing rainwater and wastewater, yet many developing countries lack such systems. Addressing this gap, …
Apr 22, 2024
News
HDD tooling that gets the job done
Horizontal directional drilling is a dynamic process that constantly changes and adapts to suit a range of applications across utilities and infrastructure. Operators looking to get the most from their equipment …
Apr 19, 2024
News
WATCH: Overnight with SAERTEX-LINER H20 in São Paulo
Available through Pipe Core, high-quality liner SAERTEX-LINER H20 performed under pressure in São Paulo, Brazil.
Maintaining aging potable water pipe infrastructure is a constant challenge …
Apr 17, 2024
News
Immersive media provides wastewater experience in Denmark
An immersive media experience (IMX) may not be what most people want when they think about industrial wastewater, but that is exactly what visitors can expect when they visit a new installation …
Apr 15, 2024
News
Spotlight on gender diversity at Pipe Core
Since founding in 2008, Pipe Core’s team has grown across all areas of the business and is now in a position where there are more females than males across the organisation. Research published in Harvard …
Apr 12, 2024
News
New Wave of Startups Scale Innovation to Solve Global Water Challenges
Innovators from Around the World Join Xylem’s 2024 Accelerator Program to Deploy Breakthrough Innovations for Utilities and Industrial Users of Water
A new group of startups …
Apr 08, 2024
News
Integrated sustainable electricity and clean drinking water systems
Altitude Water and New Use Energy Solutions have partnered to create integrated, mobile solar-plus-water generation systems that produce sustainable electricity and clean drinking …
Apr 05, 2024
News
How to Evaluate Hydraulic Fracture Risk in HDD Design
The design of horizontal directional drill (HDD) installations often requires an evaluation of the potential for hydraulic fracture of the soil layers through which an HDD passes. Evaluating …
Apr 02, 2024
News
Historic Project Linking Rome and Vatican City Uses Advanced Technology and Local Knowledge to Keep Water Flowing
Relocation of Major Sewer Infrastructure Enables Construction of Pedestrian Link for 35 Million Visitors to the 2025 Jubilee
Water …
Mar 27, 2024
News
USU Study Looks at Water Main Break Rates in the U.S. and Canada
Report Highlights Correlation Between Material and Diameter
Utah State University (USU) has published new research on water main breaks in the United States and Canada, examining …
Mar 26, 2024
News
Update BE-21: New Material in Course and Modules on Trenchless Pipe Installation
Online training on the topic of pipeline installation in civil engineering: Trenchless technology for underground drainage construction can be a resource-efficient, …
Contact
Trolining GmbH
53840 Troisdorf
Phone:
+49 2241 85-3125
Fax:
+49 2241 85-3594