infrastructure inspection Articles

  • 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

  • Infrastructure Maintenance - An Economic Opportunity

    Public safety and the cost of doing business are deeply impacted when infrastructure is neglected. Here’s a look at the high cost of low maintenance and what can be done about it. A Bridge Too Far There are over 607,000 bridges in the United States. According to the 2013 Report Card for America’s Infrastructure,1 published by the American Society of ...


    By ASTM International

  • Comparing the utility of decision trees and support vector machines when planning inspections of linear sewer infrastructure

    Closed-circuit television inspection technology is traditionally used to identify aging sewer pipes requiring rehabilitation. While these inspections provide essential information on the condition of pipes hidden from day-to-day view, they are expensive and often limited to small portions of an entire sewer system. Municipalities may benefit from utilizing predictive analytics to leverage ...


    By IWA Publishing

  • Pipeline Zooming for a Comprehensive Infrastructure Survey.

    Time, budget and resources often keep a municipality from maintaining comprehensive, up-to-date information on water and sewer pipeline conditions. Without a complete understanding of their infrastructures, municipal supervisors cannot properly prioritize and schedule maintenance activities. As a result, emergencies—backups, collapses, and overflows—happen unexpectedly, and must be dealt with on ...


    By Envirosight LLC

  • Construction and Civil Infrastructures Monitoring Systems

    Civil infrastructures are usually monitored through its whole life cycle. SHM (Structural Health Monitoring) technologies enable the estimation of the structural state and detection of structural change that affects the performance of a structure. Two discriminating factors in SHM are the time-scale of the change (how quickly the state changes) and the severity of the change. These factors ...

  • Accepted Inspection Methods of Process Sewers.

    During the process of refining there is discharge of hazardous waste, this coupled with aging pipeline infrastructure creates a potential where waste can leak into the environment posing catastrophic threats to life. Federal agencies such as the EPA are beginning to penalize refineries that do not take necessary measures of disposing their waste. These refineries are subject to ...


    By EnTech Engineering, Inc

  • GPR: a new tool for structural health monitoring of infrastructure

    Abstract Recent developments in acquisition methodology, data acquisition systems, post-processing software, and the availability of user friendly high-frequency antennas have enabled the GPR user to generate accurate three dimensional images of the interior of concrete structures. Four case studies are discussed with emphasis on output that is readily understood by the ...


    By SewerVUE

  • An Infrastructure Grows · Decentralized Treatment and Recycling Domestic Wastewater

    THE TERM, “decentralized waste-water management,” refers to the process of treating and discharging treated wastewater in the local vicinity where it is generated. Decentralized systems typically use the soil as the final receptor of the treated wastewater instead of discharging to surface waters, which are generally the receptors of treated wastewater from larger centralized treatment plants. ...


  • Case study - Dallas Water Utilities - Electromagnetic Inspection

    Service: Electromagnetic Inspection Client: Dallas Water Utilities (DWU) Department of Public Works Project Date: May 2009 Type of Pipeline: Water Main Diameter: 72-inch Pipe Material: PCCP Length: 2.95 miles Results: 6 pipe sections with wires broken The 72-inch Simpson Stuart Supply Main, owned and operated by City of Dallas, Dallas Water Utilities (DWU) is a ...


    By Pure Technologies

  • PORT PROTECTION - Port and harbour ROV inspection system

    “PROTECTING SEAPORTS AND PORT facilities against the threat of terrorism is imperative. The terrorist attacks have resulted in a renewed focus on the security of our transportation systems.” Dept. of Transportation - Maritime Administration. [Port Security Grants news release, June 17, 2002]. Terrorism is a real and hidden danger that regrettable confronts all aspects of Western society. The ...


    By AC-CESS Co Uk Ltd

  • 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

  • Overview of Infrastructure Asset Management A View from Both Sides of the Atlantic Ocean

    AbstractEurope and the United Kingdom (UK) are at the forefront of Asset Management for water utilities. This is primarily due to the fact of privatization of water utilities in the UK. The UK is currently in the third generation of the Asset Management procedures and has well defined methods for identifying and managing assets. In the United Kingdom (UK), large scale Asset Management has been ...

  • Combined application of Pipe Penetrating Radar and LIDAR for large diameter pipe inspection

    Abstract: Pipe Penetrating Radar (PPR) is the underground in-pipe application of ground penetrating radar (GPR), a non-destructive testing method that can detect defects and cavities within and outside mainline diameter (>18 in./450mm) non-metallic (reinforced concrete, vitrified clay, PVC, HDPE, etc.) underground pipes. Light Detection and Ranging (LIDAR) has become an accepted method for ...


    By SewerVUE

  • Cause and effect oriented sewer degradation evaluation to support scheduled inspection planning

    Managing the subsurface urban infrastructure, while facing limited budgets, is one of the main challenges wastewater utilities currently face. In this context targeted planning of inspection and maintenance measures plays a crucial role. This paper introduces a cause and effect oriented sewer degradation evaluation approach to support decisions on inspection frequencies and priorities. ...


    By IWA Publishing

  • London Region Develops “Intelligent” Infrastructure for the HELP Clean Water Project

    For progressive municipalities, forward thinking about infrastructure can pay huge dividends down the road. In London region, the HELP Clean Water Funding Initiative (Huron-Elgin-London Project Clean Water) was started to create sustainable water supply for a major population hub in Ontario. The project has been 11 years in the making, with ...


    By Pure Technologies

  • Cause and effect oriented sewer degradation evaluation to support scheduled inspection planning

    Managing the subsurface urban infrastructure, while facing limited budgets, is one of the main challenges wastewater utilities currently face. In this context targeted planning of inspection and maintenance measures plays a crucial role. This paper introduces a cause and effect oriented sewer degradation evaluation approach to support decisions on inspection frequencies and priorities. ...


    By IWA Publishing

  • 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

  • Short Showers Replace Deep Baths: Drought Conditions Changing the Way Society Thinks About Water Infrastructure

    While proactive water conservation is a smart way for consumers to react to climate change, the crisis puts increased pressure on water utilities to better manage their resources and pipeline networks. Change is in the air. One only needs to check the daily news to understand why climate change, drought and water infrastructure have become frequent buzzwords heard around the water ...


    By Pure Technologies

  • City Of Vancouver Deploys Free-Swimming Tools For Successful Inline Inspection Of Pressurized Main

    With its Pacific Ocean entranceway and towering backdrop of snow-dusted mountains, it’s no wonder the City of Vancouver ranks among the most laid-back, beautiful cities in Canada, and indeed, the world. Water is in its blood. This spring the coastal seaport city retained the services of ...


    By Pure Technologies

  • Multi-sensor inspection robot shows benefits of pipe penetrating radar - Case Study

    Pipe penetrating radar (PPR), the in-pipe application of ground penetrating radar (GPR) is one of the most promising quantitative pipe condition assessment technologies to emerge in recent years. With most of the underground pipe infrastructure reaching the end of their design life there is a need to provide measurable data in order to establish the extent of rehabilitation required or the timing ...


    By SewerVUE

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