underwater project Articles

  • Dam security and underwater attacks

    According to DHS (2007) dams provide a wide range of important economic, environmental, and social benefits. These benefits include: recreation, flood control, water storage, irrigation, mine tailings, electric generation, debris control, and navigation (see Figure 1; DHS 2007). Their destruction through intentional attack can largely impact the economy and public safety.  Dam security is ...


    By IWA Publishing

  • Dredging Technology – Underwater Excavation and Construction

    The presence of water is ussualy considered a nuisance in construction, particularly when excavating removing water is common practice. In some cases however, water can be a very useful tool that may simplify things greatly. With the “flooded excavation principle”, the construction site is flooded after the retaining walls have been installed (e.g. sheet pile). When the ...


    By BBA Pumps

  • Underwater Robots Perfect for Power Production

    Underwater exploration, fish farms, dive jobs, marine research, municipal and commercial water utilities are obvious industries for the utilization of Deep Trekker mini-ROVs and pipe crawlers. However another industry that has seen remarkable success integrating underwater inspection robots is energy production. Diverse methods of creating energy provide a number of applications which benefit ...


    By Deep Trekker Inc.

  • Surveying and mapping the nearshore Underwater topography of Zhuhai delta island - Case study

    project background :due to Zhuhai delta island nearshore’water too shallow ,great ship can not drive closely, Artificial boating surveying and mapping is require much time and effort  ,can not get accurate data and unsafe Equipment:Surveying and mapping unmanned ship(ME70、pilot) 、2 Sounding instruments ...


    By Oceanalpha Co., Ltd.

  • Rocky reach spillway apron underwater concrete repair - Case Study

    We were contracted to preform an underwater concrete repair to the spillway baffle under spill gate 3, and preform an inspection of the spill way and dentate from spillway 2-8 and 9-12. The spillway was separated into two sections by a fish ladder between Bays 8 and 9. The perimeter of the eroded areas were delineated using an U/W track creating a key way, ensuring a minimum depth of repair, ...

  • Top 5 ways marine researchers are currently using Underwater Drones

    Marine researchers around the world are utilizing Deep Trekker Underwater Drones (or ROVs) in their marine projects; here are the top 5 applications being used today. In a few weeks, the world will gather in San Diego, California for the Oceanology International North America exhibition. It will bring together ...


    By Deep Trekker Inc.

  • Gas monitoring and leak detection in underwater application for the offshore oil and gas case study

    With over 300 sensors and systems sold world-wide and over 35 scientific users publications, Franatech is market leader for underwater methane detection and monitoring. Franatech is a developer and supplier of sensors for detection of gases in water. The company has more than 15 years experience in subsea applications, working with all kinds of sensing technologies. Coming from a scientific ...


    By Franatech GmbH

  • Underground, underwater, under stress: Town of Longboat Key puts SmartBall tool to unusual pipeline condition test

    When much of your critical sewer pipeline lies buried under a bay of shimmering ocean water, the challenges required to assess its condition may seem daunting. That task faced the Town of Longboat Key, an affluent retirement community located on the barrier island of the same name off the west coast of Florida. Sensitive to environmental, health and safety issues, ...


    By Pure Technologies

  • Global’s divers bring skill, expertise and value to every project

    In the last few years, numerous news and trade publications have reported an increasing deficit of skilled laborers in the US. Like other trades, commercial diving relies on a highly trained and skilled labor force. You might expect Global to be experiencing a similar labor shortage and a lack of younger divers entering the trade, but fortunately that’s not the case, said Dan Pierson, ...

  • T-46 Fender Pile Repair Project - Case Study

    Seattle’s most extensive current civil works project, the Alaskan Way Viaduct replacement tunnel, is being constructed using the world’s largest tunnel boring machine ‘Bertha’. Due to the proximity of the construction site to the waterfront, the dirt and rock spoils from this effort are transported via conveyor belt to Pier 46. From there it is loaded onto barges for ...

  • ArmorMax® is Solution for Bank Stabilization in NRCS Emergency Watershed Protection Program, Kissimmee, FL case study

    PROJECT SUMMARY Years of flash flooding and fluctuating water levels in the West City Ditch made for a dangerous scenario. The City of Kissimmee secured NRCS EWPP grant money to stabilize the ditch before catastrophic infrastructure damage occurred, but the budget was too small for full protection with conventional hard armoring. Propex worked with engineers to model slope stability in rapid ...

  • Dam Inspection: A Day at Still Creek Dam

    We’ve been busy lately visiting various municipalities, police forces, aquaculture sites, and water treatment plants showcasing both our portable ROV systems and our new product line, the DT340 Pipe Crawler. One project in particular, took place at the Still Creek Dam in Tamaqua, PA. Cody and Sam packed up the crawler and headed down ...


    By Deep Trekker Inc.

  • Pollution prevention and control, West Wales

    Project Earlier this year, Remediation Strategies were asked to look into the development of a pneumatic barrier for a specific oil spill response scenario.  A pneumatic barrier uses compressed air in an underwater environment to create a vertical ‘bubble barrier’ and a standing wave at the water surface. The purpose of the barrier is to contain a given spillage of ...


    By Remediation Strategies Ltd.

  • Keeping Tanks Online and Divers Out of the Water

    Huntley’s Sub Aqua Construction brings piece of mind to customers with regular and efficient mini remotely operated vehicle inspections Huntley’s Sub Aqua Construction (HSAC) is a commercial diving company based in Kentville, Nova Scotia, Canada. Operating since 1994, HSAC recently added a Deep Trekker mini remotely operated vehicle (ROV) to their team to improve potable water ...


    By Deep Trekker Inc.

  • Solar parks Jocksdorf & Preschen - Case Study

    Old military airbase becomes an energy terminal KGAL and Phoenix Solar have been implementing solar projects together for many years now: now seventeen in total with this project. 20 years of guaranteed feed-in remuneration and reliable technology provided by Phoenix Solar form the basis for stable cash flows which can be reliably forecast. Jocksdorf ...


    By Phoenix Solar AG

  • Gabion mattress deployment at former manufacutured gas plant site case study

    Project: Island End River Sediment Cap Location: Boston, MA Products: Organoclay Reactive Core Mat? Triton Marine Mattresses Background: The project is situated on a former manufactured gas plant (MGP) site located adjacent to the Boston Harbor. Previous remedial work included dredge and disposal in CAD cell and cap. ...


    By CETCO

  • Deep soil mixing at the Jackson Lake Dam

    Abstract: The Jackson Lake Dam was constructed in 1917 in the Grand Teton National Park near Jackson, Wyoming. The dam was a hydraulic fill placed on a natural alluvium and outwash foundation. The Bureau of Reclamation (Burec) determined that the dam and its foundation would be susceptible to liquefaction and failure during a potential earthquake; a series of contracts was let to remove and ...


    By Geo-Con, Inc.

  • Everett, WA - ERH under active storm water retention basin - Case Study

    First below water ERH remediation of TCE in active stormwater retention basin Project Summary TRS Group, Inc. (TRS) worked as a sub contractor to Landau Associates on this unique ERH remediation project. This project represents the first of its kind using ERH for site remediation underneath an industrial storm water retention basin full of water. The ...


    By TRS Group, Inc.

  • Great Lakes need great Data Buoys

    One recently finished project was performed by the University of Wisconsin and has comprised the depolyment of two data buoys which are both furnished with a multifunctional Lufft WS501-UMB. These weather ...

  • 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.

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