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May 04, 2022 In the following, the creation of the lower bedding layer is shown using the example of a concrete pipe with base. Pipes with base are usually placed on a prepared, horizontally levelled and compacted bedding of suitable soil material, directly on the prepared trench base. Even in the case of pipes with base, it is necessary to re-compact the edge areas at the base with a hand tamper to ensure full-surface support. (Image: Preparation of the lower … |
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Feb 10, 2021 News Desiree Willis Robbins Brand to continue under Global TBM Company
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Feb 11, 2021 News Mac Canali Waterline Renewal Technology, Inc., a portfolio company of Behrman Capital, announced the launch of the new LightRay LR3 from Perma-Liner Industries, which incorporates the latest in UV trenchless technology – significantly reducing the curing time during installations.
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Sep 21, 2021 News GoAguia - Idrica Stanley Consultants, a worldwide provider of consulting engineering services, and water technology company GoAigua announced a strategic partnership to help water utilities leverage technology to meet today’s challenges of renewing aging infrastructure and increasing resiliency and efficiency.
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Oct 11, 2021 News Lynne Boschee SOURCE Global and Arizona State University announced the launch of a new water farm producing high-quality, sustainable drinking water sourced from the sky and powered by the sun.
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Oct 12, 2021 News The Penetron Group Commissioned by the Metropolitan St. Louis Sewer District (MSD), construction of the concrete lining of this monumental underground tunnel of the Deer Creek storm drainage system was completed in August 2021. Penetron’s antimicrobial concrete admixture was specified to permanently protect the tunnel's concrete lining from microbially-induced corrosion (MIC).
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Oct 21, 2021 News Lily Chen Cooking fat, oil and grease (FOG) must be seen as resource of value, with an urgent change in mindset required to keep it out of the sewers and to fully harness its potential. That is the message from Stephen Williams, Southern Water network protection officer.
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Oct 22, 2021 News StormHarvester Ltd UK water company Wessex Water is joining forces with award-winning artificial intelligence company StormHarvester in a world first to expand the use of AI to detect blockages across its entire wastewater network.
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Oct 13, 2021 News Houston Spencer Global water technology company, Xylem, has helped the City of Raleigh Public Utilities Department (Raleigh Water) get a clearer picture of its 2,340 miles of pipes, some of which are more than 100 years old. Accurately predicting which parts of the pipe network might fail helps Raleigh Water pin-point maintenance, avoid unnecessary digs and reduce water main breaks.
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Oct 14, 2021 News Heather Centorbi The 6th annual Risk Management in Underground Construction course will be held April 12-13, 2022, at the Hilton Atlanta Airport Hotel in Atlanta, Georgia.
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Oct 18, 2021 News Lila Thompson Ofwat’s new interim chief executive has set out six key areas of focus to help drive change in water, telling industry representatives “we can’t simply build our way out of the challenges in front of us”.
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Sep 22, 2023 News Peter Balassa PPXXI Conference and Exhibition welcomes McElroy Manufacturing, Inc. as the mobile app sponsor. Their sponsorship enhances networking opportunities for the delegates. Scheduled over September 25 -27, 2023, in Lake Buena Vista, Florida, PPXXI is the key technical and business event for plastic pipe systems and one that only occurs every 2-years.
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Sep 20, 2023 News gwf Wasser | Abwasser Vulkan-Verlag GmbH Aquatech is the leading water technology show in the world, with over 800 exhibitors and expecting over 22,000 visitors from over 140+ countries.
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Sep 27, 2023 News Leilah Nicola Any water loss through leaking pipes is unacceptable in the eyes of the public, and on the launch of a deep-dive leakage report from Ovarro, technology leader for leakage solutions, Barbara Hathaway, explains how technologies continue to advance.
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Sep 29, 2023 News gwf Wasser | Abwasser Vulkan-Verlag GmbH Researchers from the University of Illinois Chicago have proposed a “dual-pipeline” solution to address the region’s water supply issues. The system would feature one line supplying industrial sites with treated wastewater and another conveying drinking water to homes and other places requiring potable water.
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Jan 11, 2021 News Lila Thompson British Water’s wastewater treatment technicians’ training continued successfully through 2020 despite the Covid-19 crisis, with the accreditation receiving Environment Agency praise.
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Feb 11, 2022 News Stuart Stone Experts outlined the approaches they’re taking to cut carbon emissions from wastewater at the Utility Week Innovate WWT Wastewater 2022 Conference.
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Feb 10, 2022 News Dr. Keeley Crockett Ahead of National Apprenticeship Week and International Day of Women and Girls in Science, Dr. Keeley Crockett, IEEE member and professor in computational intelligence at the Manchester Metropolitan University explains how we can build a sustainable pipeline of female talent for STEM.
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Feb 21, 2022 News John Keane The acquisition will expand Plummer’s integrated water engineering services in Florida
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Hydraulically bound backfill materials are particularly suitable for the combined installation of pipes and sewers. With conventional installation of pipelines, sufficient minimum distances are required for the necessary compaction of the soil. These are not required when installing the pipes with hydraulically bound backfill materials. The following pictures show a corresponding application. Reinforced concrete elements are used as installation aids. … |
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Modern alignment of jacking spans poses constantly increasing requirements for jacking pipes. Looking back to recent years, it is apparent that jacking lengths are getting longer and longer while narrow curves are becoming more and more frequent. Even complicated curve combinations, partly with multiple S- or three-dimensional curves, are no longer a rare sight in calls for tenders. Conventional pipe joints with pressure transfer rings made of wood … |
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The concept is described below for the CoJackHydra system. In CoJackHydra, the CoJack calculation and control system is combined with a new pressure transfer system (hydraulic joint) consisting of a water-filled high-pressure hose. The "Hydraulic Joint" replaces the pressure transfer ring between the jacking pipes, which usually consists of a chipboard or oriented strand board (OSB). Among other things, the system allows a better angular deflection … |
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The amount of water in the hose is dimensioned depending on the project in such a way that the maximum possible jacking force is achieved while ensuring the necessary deviation ability. CoJackHydra allows for significantly higher jacking forces than conventional pressure transfer rings, especially in tight curves or in curve combinations (S-curves) in the jacking alignment. Visual description of the steering procedure:
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1. Higher permissible jacking forces particularly in curves
2. Better angular deflection of the pipe joints
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The hydraulic joint is supplied as single or multiple circumferential closed rings. The position is fixed without drilling or gluing to the pipe end. There must be no recesses or bevels on the inside of the jacking pipe or on the concrete edges of the pipe end. Any recesses on the pipe end faces must not extend to the inner or outer surface of the pipe. This also applies to the concrete on the steel collar to avoid leakages. The pocket for receiving … |
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