Poland drives HOBAS pipes round the bend
Jun 20, 2008
An impressive pipe project in Poland's capital Warsaw is expected to be completed mid summer 2008: To relieve the down-town sewer collector and to transport wastewater to the new treatment plant "Czajka", astounding 3.3 km large diameter (up to OD 2160 mm) HOBAS CC-GRP Jacking Pipes are installed by remote controlled jacking (microtunneling) and were literally driven around several bends.
The competition was tight and material prices for sure did not speak for GRP. HOBAS undoubtedly convinced in different respects such as offering extensive experience, know-how and reliability in curvilinear jacking. As so often, a second more thorough glance showed that the higher material costs were considerably outweighed by savings through, for instance, a 30% reduction of extracted soil thanks to smaller consistent outer diameters of the comparably thin walled CC-GRP Pipes. Construction sites and construction equipment could be kept small and to a minimum, for pipe size and weight surely mattered also in this case. Fast assembly and small curve radii were further cost saving advantages that spoke for HOBAS, not to mention the high corrosion resistance, long life expectancy of the products, low maintenance costs, etc.
The 3.3 km line runs in 4.7 and 10.6 m depth and includes 6 curves with 200, 300 and 600 m radii, the longest curve being 124 m at an average gradient of 0.063%. Sand and clay are the main soil components on the route and a part of the pipeline is assembled below groundwater level.
HOBAS Poland delivered CC-GRP Jacking Pipes in 1 m, 1.5 m and 3 m lengths for the different radii and straight sections. Since the absolutely leak-tight flush HOBAS Couplings incorporate a certain angular deflection, smaller curve radii are achieved by utilizing shorter pipe sections. Although not absolutely necessary, HOBAS Experts recommended the use of wooden rings between the pipes in curved sections in order to guarantee a perfect fit. An intermediate station that was run in the curve was a novelty that required a special design for the consequent station as for the steel pipe of the intermediate station itself.
Challenges such as a clearance of only 0.6 m between the pipeline and subway were easily overcome. Precise planning and the relatively small outer diameter of HOBAS Pipes were imperative for this remote controlled jacking project. A single jacking drive over 500 m was the technical highlight of the project. No wonder: The close and well functioning cooperation between HOBAS Organizations is indispensable in every regard and allows drawing from a large pool of technical expertise for top quality customer solutions.
For further information:
HOBAS Engineering GmbH
Alexandra Dobnigg, Marketing - Graphics & Press,
Pischeldorfer Straße 128
A-9020 Klagenfurt
Austria
Tel.: + 43 463 482424-38
Fax: + 48 463 482121
Email: alexandra.dobnigg@hobas.com
Internet: www.hobas.com
More News and Articles
May 10, 2024
News
A master in customised pipes
Australian Custom Pipes no longer needs an introduction. The independent, Australian-owned polyethylene pipe manufacturer has been making waves for more than 20 years.
The company’s quality polyethylene (PE) pipes …
May 08, 2024
News
Improving trenchless installations with Riteline
Riteline spacers have been successfully appraised by the Water Services Association of Australia, providing a new option for pipeline installations that complies with WSA PS-324 for casing spacers.
May 06, 2024
News
Redefining relining in Wodonga
In a step towards enhancing stormwater infrastructure, M. Tucker & Sons recently completed a challenging relining project for the Wodonga City Council.
The relining project, commissioned by the Wodonga City Council …
Apr 29, 2024
News
Minimising cultural impacts with trenchless
Through the benefits of trenchless technology, Yarra Valley Water is minimising impacts on the Upper Darebin Creek branch sewer project.
The project consists of building a 2.7km sewer pipe in Epping, …
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 …
Contact
HOBAS Engineering GmbH
9020 Klagenfurt, Österreich
Phone:
+43.463.482424
Fax:
+43.463.482121