pipeline rehabilitation Articles

  • A long-term plan for water pipeline rehabilitation considering preventive maintenance

    Water pipelines deliver water of daily-life demand to customers. However, pipelines tend to be damaged after years of use. Thus, many waterworks are now faced with the major task of water pipeline rehabilitation. However, budgets for pipeline replacement are limited. The present study aims to propose a long-term plan for water pipeline rehabilitation under limited rehabilitation budgets that ...


    By IWA Publishing

  • Managing metallic pipe: a white paper on the significant developments in metallic pipe inspection approaches, services and technologies

    Traditionally, many utilities have been managing their aging metallic pipelines using a replacement approach, which prioritizes a pipe based on its age and failure history. While in some cases, pipe replacement is both financially defensible and necessary, age and failure history alone do not provide enough data to determine if replacement of a pipeline is necessary. In fact, the U.S. ...


    By Pure Technologies

  • GPR goes underground: Pipe Penetrating Radar

    Abstract: Pipe Penetrating Radar (PPR) is the underground in-pipe application of ground penetrating radar (GPR) either robotically or by manned entry to reveal wall thickness, delamination, voids, and other conditions that enable more precise determination of pipeline integrity and verifications for trenchless technology rehabilitation. PPR, when applied to pipe-bursting applications, can ...


    By SewerVUE

  • A resilience-based prioritization scheme for water main rehabilitation

    Water supply infrastructure in the United States is one lifeline system that is in dire need of huge financial investments to counter pipeline deterioration while keeping up with increasing demands and reliability goals. With decreasing financial resources available to state and local governments, effective decision-making tools for pipeline prioritization are becoming an increasingly integral ...


    By IWA Publishing

  • Rehabilitation of Hydrogen Grooving in Sulfuric Acid Line

    Around October 2001, one of the major petrochemical refineries located on the Texas Louisiana Gulf coast needed to rehabilitate 6' and 8” diameter “fresh acid” (98% sulfuric acid) lines. Such lines tend to suffer from internal gouging due to formation of hydrogen gas in voids, which are caused by turbulence at directional changes in the pipe flow such as elbows, etc. This is a natural event, ...


    By InduMar Products, Inc.

  • Infrastructure Bypass: Rehabilitating the Nation’s Decaying Sewer Systems

    Billions of dollars in federal aid money has been allocated to rehabilitating our decaying sewer systems, and while these are projects that will be done, there will be associated problems with trying to keep roads and businesses open during this work. Typically, in rehabilitating existing sewer lines, the flow of sewage cannot simply be diverted—it must be “bypassed,” which ...


    By Griffin Dewatering

  • Case study - LHPWSS Manages Critical Pipeline

    Service: Assess and Address Client: Lake Huron Primary Water Supply System Project Date: October 2012 - March 2013 Location: Greater London Region, ON Type of Pipeline: Water Transmission Main Diameter: 48-inch (1200mm) Pipe Material: PCCP The Lake Huron Primary Water Supply System (LHPWSS) serves about 500,000 people over eight municipalities in the London area and ...


    By Pure Technologies

  • The Investigation, Assessment and Design of a Rehabilitation Solution Following the Failure of an Asbestos Cement Force Main in Israel

    Following failure of a 50” Asbestos Cement force main in Tel Aviv, Israel, a failure analysis was undertaken to determine the cause of failure and the risk of further incidents. This identified the possibility of further catastrophic bursts of the force main. Fully structural rehabilitation was designed using a hybrid reinforced concrete and ferrocement approach in order to meet all of the ...

  • Pipeline infrastructure renewal at Miami-Dade Water & Sewer Department

    Abstract Various governmental, professional and private studies have shown that the replacement costs of underground pipeline infrastructure is excessive and that best practice approaches for infrastructure risk management promote condition assessment programs to understand the actual condition of individual pipe sections in order to best allocate limited capital replacement and ...


    By Pure Technologies

  • Making remaining life predictions for better pipeline asset management

    ABSTRACT Most underground assets owners would like to know what the probability is for failure of a given pipeline asset as a function of material type, function type, age of the asset, geotechnical environment, and other factors, when we know past failure distributions, predominant failure mechanisms, and other attributes. While most underground utilities have collected voluminous data that ...

  • Crawler Size: The Right Investment for the Right Pipeline Inspection Application

    As with any maturing technology, the inspection crawler market has evolved from a handful of basic models to a vast array of configurations, each uniquely adapted for nearly any pipeline inspection application.For buyers, this can also be a double-edged sword since finding the right crawler among the myriad of choices can require research, forethought, and inevitably some compromise. So, here are ...


    By Envirosight LLC

  • Case study - Trinity River Authority verifies condition of C303 Pipeline

    Service: Assess and Address Client: Trinity River Authority of Texas Project Date: November 2012 - ongoing Location: Trinity River, TX Type of Pipeline: Water Transmission Main Diameter: 30-inch (750mm) and 54-inch (1350mm) Pipe Material: ...


    By Pure Technologies

  • A multi-step genetic algorithm model for ensuring cost-effectiveness and adequate water pressure in a trunk/limb mains pipe system

    A water distribution network is the most expensive component of a water supply system; consequently, the overall planning, installation, and rehabilitation processes should be implemented accurately and carefully. The main issue that developing countries are facing is how to optimize the distribution network to meet increasing water demand. To tackle the issue, this paper proposes a new concept ...


    By IWA Publishing

  • Case study - El Paso Water Utilities (EPWU)

    Service: Robotics Client: El Paso Water Utilities (EPWU) Project Date: June 2005 Type of Pipeline: Transmission Main Diameter: 24-inch Pipe Material: Lined Cylinder Pipe (LCP) Length: 0.64 miles The City of El Paso is the fifth largest in Texas, with a population of approximately 750,000. To serve the needs of this burgeoning city, El Paso Water Utilities (EPWU) operates ...


    By Pure Technologies

  • Case study - Muskegon County - Sewer Force Mains

    Service: Sahara Client: Muskegon County Type of Pipeline: Sewer Force Main Diameter: 66-inch Pipe Material: PCCP Length: 8.5 miles 13.7 km In 2007, Muskegon County’s 35-year old large diameter wastewater force main failed catastrophically. Although historical data demonstrated that joint leakage had never contributed to previous events, extensive failure analysis of ...


    By Pure Technologies

  • Radius Systems’ bespoke engineered PE Systems bring cost savings and environmental benefits to water customers

    Radius Systems are currently supplying innovative pipeline solutions for two large diameter water projects: a new hydro electricity scheme in Gerlan, North Wales and the rehabilitation of a large diameter pipeline in the Severn Trent Water area. Working together with the Derwent Hydro project team to develop an optimised system for the new hydro electricity pipeline in Gerlan, Radius Systems are ...


    By Water Active Ltd

  • Case study - Man-Made River Authority (MRA)

    Service: SoundPrint® AFO Client: Man-Made River Authority Project Date: Ongoing since 2004 Location: Ajdabiya, Libya Type of Pipelines: Raw Water Transmission Mains Diameter: 158-inch (4 meter) Pipe Material: PCCP Length: 1,200 km Results: 35,000 wire breaks as of 2011 Libya's Man Made River With more than 4,000 km of mainly four-metre diameter ...


    By Pure Technologies

  • Case study - Woodroffe Avenue Transmission Main - Ottawa, Ontario

    Service: SoundPrint AFO PureRobotics Client: City of Ottawa Project Date: 2011 Location: Ottawa, Ontario, Canada Type of Pipeline: Water Transmission Main Diameter: 48-inch (1200mm) Pipe Material: PCCP The Woodroffe Avenue Transmission Main in Ottawa, Ontario experienced a major failure in January 2011 which opened a large hole across three traffic lanes causing major ...


    By Pure Technologies

  • Case study - The Philadelphia Water Department (PWD)

    Service: Sahara Leak Detection Client: The Philadelphia Water Department (PWD) Project Date: 2007 Type of Pipelines: Transmission Mains Diameter: 16 to 60-inch Pipe Material: Cast Iron Dutile Iron Steel Length: 22.2 miles Results: 47+ leaks identified The Philadelphia Water Department (PWD) has focused on water loss management programs for the past decade ...


    By Pure Technologies

  • Case study - Metropolitan Water District of Southern California (MWD)

    Service: Electromagnetic Inspection Client: Metropolitan Water District of Southern California (MWD) Type of Pipeline: Transmission Mains Diameter: 42 to 201-inch Pipe Material: PCCP Length: 163 miles The Metropolitan Water District of Southern California (MWD) is a consortium of 26 cities and water districts that provide drinking water to nearly 17 million people in parts ...


    By Pure Technologies

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