tunnel monitoring technology Articles

  • Equipment and technology review: rocscience tunneling applications

    Allen Gwynnes Pumps– name resurrected With a design and manufacturing history stretching back 150 years, Allen Gwynnes Pumps, a name long associated with the manufacture of large, performance critical pumps, is once again an active force in the market place, operating from its new head office location in Middlesbrough, UK. The company was acquired by NEI during the 1970’s, and then became part ...


    By Rocscience Inc.

  • 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 ...

  • The Light at the End of the Tunnel - How to Successfully Operate a UV Disinfection System

    ABSTRACTOver the past ten years, ultraviolet (UV) technology has become a commonly applied method of disinfecting of wastewater effluent. UV disinfection involves passing wastewater effluent through a confined chamber with rows of underwater lamps emitting UV energy. Viruses and bacteria become inactivated upon exposure to dosages of UV energy, thereby disinfecting the wastewater. The UV system ...

  • Air monitoring in the Bosnian valley of the pyramids – part 2

    In the first part of this series, ‘Air monitoring in the Bosnian Valley of the Pyramids—Part 1’, I recounted my trip to Visoko in March 2015. Bosnia and Herzegovina is a fascinating country and well worth going to—not only to experience Tunnel Ravne and the nearby ...


    By Analox Sensor Technology

  • Real-time environmental monitoring of the Great Barrier Reef

    The Great Barrier Reef (GBR) is the largest natural feature on earth, stretching more than 2300 km along the northeast coast of Australia. It contains a diverse array of species and habitats that are threatened by environmental and human impacts. Monitoring environmental changes would give a better understanding of the health of this ecological system. It would also help shape decision-making to ...


    By Inderscience Publishers

  • Invictus noise monitor on the right track- Case Study

    An international acoustic consultancy was engaged by contractor Balfour Beatty on behalf of the end client Network Rail in this landmark project that is revolutionising transport across London. The Project: The new rail link will help cut journey times to the heart of the capital by two thirds in some cases, passing through 37 stations and running 118km from ...


    By Cirrus Environmental

  • Air monitoring in the Bosnian Valley Of The Pyramids – part 3 (September 2015)

    Pushing a wheelbarrow full of gravel through a subterranean labyrinth in Bosnia might not be your idea of a holiday. The sun never shines in the tunnels, there’s no WiFi and they don’t serve cocktails. But it’s a lot more fun than you might think—especially when you’re working with a fascinating group of like-minded volunteers from all over the world. In my group ...


    By Analox Sensor Technology

  • Railway warning and protected system – Bridge Demolition

    So the in-situ stress sensors in the concrete could measure the load changes and stress changes with a building damage after eniem earthquake immediately on-line. The alert with GPS item data is spread world-wide over the Internet. The combination also for everyone accessible maps of the world can facilitate the management after disasters substantially. So fast data are available over destroyed ...


    By IBJ Technology

  • In-situ stress measurement in concrete - a component for the geolocation of the destruction with earthquakes

    So the in-situ stress sensors in the concrete could measure the load changes and stress changes with a building damage after eniem earthquake immediately on-line. The alert with GPS item data is spread world-wide over the Internet. The combination also for everyone accessible maps of the world can facilitate the management after disasters substantially. So fast data are available over destroyed ...


    By IBJ Technology

  • In-Barge Dewatering Application Offers Innovative Solution Where Lay Down Area Is Unavailable - Case Study

    Tight space constraints are solved by customized Geotube   units in floating barges. Geotube dewatering technology has been used to deliver high performance solutions all over the world in more than 50 countries. Over 2,000 dewatering projects have taken advantage of Geotube containers since 1991. These have involved both small and large situations for lagoon cleanout, ...

  • Turbidity Warning System

    Morgan Est Contractors for National Grid Supply and installation of telemetred groundwater monitoring network, May 2006 ongoing Hydro-Logic recently completed the supply and installation of borehole instrumentation and a telemetry monitoring system to monitor groundwater conditions in 28 observation wells located at 19 sites in the vicinity of Croydon. The ...

  • Controlling level of toxic liquids for the foam industry case study

    Solid provides a durable solution for level controlling of toxic liquids, using the SmartScan 50L ultrasonic measurement gauge. Polymers Ashkelon Industries located in the city of Ashkelon, is a major supplier of foam for the furniture and mattresses industry in Israel. The company has a long-standing reputation in manufacturing of foam in various shapes and sizes for mattresses, furniture and ...

  • Automated Treatment System Used to Solve a Costly and Environmentally Critical Wastewater Problem for an East Coast Utility

    BACKGROUND Hydrocarbon and particulate contamination in wastewater is a well-known environmental hazard.  Due to tightening environmental regulations, an ever-increasing source of such contamination in major cities comes from water collected from underground utility vaults and manhole water.  This contaminated water, contains a smorgasbord of potential contaminants from transformers, ground ...


    By Walchem, Iwaki America Inc.

  • From 370km above the earth to 11000m under the sea

    It’s a bold strapline – but what does it mean? Have we opened an atmosphere research facility in outer space? Organised an aquatic Charity Day in the Mariana Trench? Well, if you didn’t know anything about Analox you’d be forgiven for wondering. After all, three-hundred and seventy kilometres above the earth is a long way from Stokesley. And eleven thousand metres under ...


    By Analox Sensor Technology

  • Solutions for Automotive Testing

    In recent years, the field of research, development and testing of vehicles has created a need for integrated testing systems which cover the entire vehicle including engine and driveline. These systems also need to be capable of being deployed globally in a supportive structure. As a means of responding to these market requirements, building on our strengths in vehicle emissions measurement ...


    By HORIBA Europe GmbH

  • Understanding the potential class II – Division I Safety Hazards present when operating Vertical Cuttings Dryers

    For decades, the industry standard for waste management dryers (a.k.a. vertical cuttings dryers) has relied on belt-driven sheaves. Though belt-driven systems are cost effective and relatively easy to implement, at a minimum they have represented a maintenance nuisance, at worst they represent a serious safety concern when ...


    By Elgin Separation Solutions

  • Closures of mine a new challenge for Romania

    AbstractThe mining activity is one of the oldest activity in Romania, dating from the year 100 B.C. The gold and silver ores represented one of the riches of our country. In time the economic content of metals diminuend, and the ore mines become non profitable. Due to this situation the best option of the State was the closure and ecological rehabilitation of the mines.The steps for the ...


  • CU-Boulder leading study of wind turbine wakes

    While wind turbines primarily are a source of renewable energy, they also produce wakes of invisible ripples that can affect the atmosphere and influence wind turbines downstream -- an issue being researched in a newly launched study led by the University of Colorado Boulder's Julie Lundquist, assistant professor in the atmospheric and oceanic sciences department. The study, called the Turbine ...


  • Renewing Belgrade’s Water Infrastructure

    After the trauma of the 1990s, new foreign and national investments in Belgrade’s water infrastructure is enabling the city to benefit from the latest advances in water supply technology… Introduction Situated on the banks of the rivers Sava and Danube, the citizens of Belgrade, the capital city of Serbia and Montenegro in the Balkans, have long benefited from ready access to water. ...


    By Innovyze

  • Demonstrating advanced environmental management

    Everyone has high expectations when it comes to maintaining the environment. But for Castle Cement, just meeting those expectations wasn't enough. Managing stakeholder expectations is a major challenge for those implementing environmental management systems (EMS). Increased demands for transparency are driving process-based management systems and the rise in public reporting of environmental ...


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