Trenchless Pipe Systems Articles

  • Got deteriorating asbestos cement water mains?

    Asbestos has come to be one of the most feared words and materials in the world. Yet, in the 1940s, 1950s and 1960s, more than 600,000 miles of asbestos cement– also called transite – used for its light weight, corrosion resistance, rigidity, ease of handling and installation was installed to handle water throughout the United States. Applications included potable water mains, storm ...

  • Principles of Solids Control

    Although the use of drilling fluids within the HDD / trenchless industry is still relatively new, recent trends suggest that this standard is shifting as solids control is one of the most important phases in the drilling process. This shift is due to a growing awareness that drilling fluid maintenance and disposal can become exponential problems as they are both harmful to the environment and ...


    By Elgin Separation Solutions

  • Optimizing drilling efficiencies with a solids control system

    The correct solids control system can improve drilling rig efficiency, reduce costs and minimize the environmental footprint of your operation Although the use of drilling fluids within the HDD / trenchless industry is still relatively new, recent trends suggest that this standard is shifting as solids control is one of the most important phases in the drilling process. This shift is due ...


    By Elgin Separation Solutions

  • Wastewater Force Main Management – Internal Corrosion Survey using inline methods

    In our first post about Wastewater Force Main Management, we looked at how preliminary analysis helps operators develop a plan for managing their system. After completing this process, operators can begin putting the plan into action with preliminary surveys on specific force mains. For those at WEFTEC, you can visit Pure ...

  • Superior voc protection for project situated on former railroad site case study

    Project: Smith Performing Arts Center Location: Las Vegas, NV Products: Liquid Boot Gas Vapor Mitigation System, GeoVent™ Gas Venting System, Ultraseal Waterproofing System Background: Vapor intrusion has become a significant environmental issue for regulators, industry leaders, and concerned residents nationwide. The ...


    By CETCO

  • Vancouver, WA Salmon Creek, St. Johns Trunk - Case Study

    Summary Clark Regional Wastewater District commissioned a condition assessment on the Salmon Creek and St Johns Trunk reinforced concrete lines. For St. Johns Trunk, a 36-inch line, corrosion due to vapor-phase H2S was suspected and evidence was observed visually by CCTV. The District wanted to quantitatively determine the extent of corrosion and if/when future rehabilitation would be ...


    By SewerVUE

  • Backreaming through rock — with AXIS Guided Boring System

    Taking on a challenge is nothing out of the ordinary for the experienced trenchless installation experts at Midwest Mole. Since its founding in 1982, the Indianapolis-based contactor has earned a reputation for installation innovation; overcoming obstacles and defying the odds. So, these trenchless pros didn’t hesitate to take on another challenge despite the recognition that they would ...


    By Vermeer

  • Installing gravity sewer in tough Georgia rock

    It took a contractor who was receptive to an innovative new installation approach, a good deal of patience and a whole lot of determination — after two previous attempts by other contractors using drills and air hammers were unsuccessful — to finally conquer a pesky 800-foot (243.8 m) stretch of tough Georgia blue granite. Hence, project owner Coweta County Water and Sewer Authority ...


    By Vermeer

  • 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

  • New advances in planning a bore

    Software helps take out the guesswork Horizontal directional drilling (HDD) is challenging and difficult work fraught with unknown obstacles. While it’s not possible to eliminate every obstacle, bore planning software tools developed by drill manufacturers can help small and large contractors create a bore plan that may help minimize risks. Bore planning software was ...


    By Vermeer

  • The role of robotics in the trenchless industry

    The official definition of a robot is “a machine or device that operates automatically or by remote control,” yet this does not really define the information and functions that the robots in the Trenchless Technology industry provide to engineers from local water authorities, municipalities and It can be argued that the first step towards what we know today as ‘robots’ was the use of tube ...


    By KATE PMO AG

  • Asset Management Applied to Trenchless Sewer Repair

    Patented trenchless sewer repair products were brought to the market in the 1970’s by well financed companies. These companies had the financial power to hire competent engineering staff and conduct the needed Research and Development as well as ensure quality installations. They also had the benefit and tradition of professional engineering involvement in public projects. Continued solid ...


    By Link-Pipe Inc.

  • New York City Chooses Ductile Iron Pipe For First Pipe Bursting Project

    When the City of New York Department of Design and Construction (DDC) determines a pipeline needs to be installed, any private utility using the City’s right-of-way, e.g. ConEd, Cable Vision, Key Span and Verizon, is responsible for the cost of relocating and supporting, if possible, any conflicting lines prior to or during construction. This cost can be extremely high since utility corridors are ...

  • A comparison of trenchless pipe bursting vs. conventional open cut methods for water and wastewater transmission mains

    ABSTRACT Over the last 15 years, new advances in trenchless technologies have emerged across Europe and are finding their way into the United States. One of the fastest growing methods involves pipe bursting of existing pipe and replacement with new larger diameter pipe. The existing pipe is shattered into small pieces and pushed into the surrounding soil. A new pipe of like or larger size is ...

  • Installation of Large Diameter Buried Pipes

    The ProblemThere is an ongoing need to provide designers, specifiers, engineers, consultants and students an overview and general understanding on the proper installation and rehabilitation of buried municipal and industrial pipelines to provide a long-lasting wastewater and potable water infrastructure that will serve future generations. Goals and ObjectiveMost buried ...

  • 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

  • Trouble Shooting for Trenchless Liner Installation During Sewer Line Rehabilitation

    ABSTRACTLining is being used by the utility industry as a cost effective solution to rehabilitate utility lines. Many types of liners, such as, cured-in-place-pipe (CIPP), fold and form PVC, deformed & reformed HDPE, etc., are being used to restore structural integrity of deteriorated pipes and to reduce inflow/infiltration. Most of the lining installation is carried out without any problem, ...

  • Tunneling Under Austin, Protecting the Environment, and Preserving the Peace

    ABSTRACTFor over a decade, an existing 42-inch wastewater interceptor has plagued the Austin Water Utility (Utility) with higher than usual maintenance demands. Located in the Walnut Creek flow line, this interceptor is partially exposed with manholes rising several feet above the creek bed due to years of erosion. The interceptor suffers from external erosion and is victim to debris floating ...

  • Manhole Relining in the Keystone State

    Manhole Relining in the Keystone State Mt. Carmel (Pa.) Board of Trustees Turns to Epoxy Lining to Save Failing Structures Exerpts from Trenchless Technology Magazine, September 2005 issue Given that estimates for the total amount of sanitary sewer pipes in the United States top 500,000 miles, it is easy to understand how sometimes manholes can be overlooked. But manholes are a big ...

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