Waterways Articles

  • Raising Dead Ships: Derelict Vessel Removal

    One of Global’s specialties is vessel salvage – if your vessel runs aground or sinks, we’ll raise it and hopefully refloat it for you. But what happens to the thousands of old, worn out vessels that sit abandoned along the coasts and harbors? Often they sink, where they pose an environmental and navigational hazard. That’s why Washington, Oregon, California and Alaska have ...

  • Adaptation turning points on inland waterway transport in the Rhine River

    It is expected that climate change will affect important natural inland waterways in Europe, among others, the Rhine River. Inland waterway transport is one of the main economic activities developed in the Rhine, and the effects of climate change on this activity are of great concern for skippers, the industry and policy-makers. This paper aims to identify whether longer and more frequent dry ...


    By IWA Publishing

  • Free-surface flow simulations for discharge-based operation of hydraulic structure gates

    We combine non-hydrostatic flow simulations of the free surface with a discharge model based on elementary gate flow equations for decision support in the operation of hydraulic structure gates. A water level-based gate control used in most of today's general practice does not take into account the fact that gate operation scenarios producing similar total discharged volumes and similar ...


    By IWA Publishing

  • Management of water hyacinth (Eichhornia crassipes), an aquatic weed waste, by vermicomposting technology

    Water hyacinth has become a menace in Sambhaji tank, Solapur city, Maharashtra, India. An attempt has been made to convert this water hyacinth into a nutrient rich vermicompost using the earthworm Eudrilus eugeniae. The macronutrient and microbial analysis of vermicompost at various intervals of time has been studied and compared with decomposing water hyacinth. It was found that nitrogen, ...


    By Inderscience Publishers

  • Sediment Budget Template applied to Aberdeen Pool

    This work creates a Sediment Budget Template (SBT) with Aberdeen Pool on the Tennessee-Tombigbee Waterway as the demonstration site. USGS data are the basis for the Power Curve Program which defines the sediment behaviour in terms of a power function. The second program, Tier 1 Program, uses the power curve coefficients along with the bankfull discharge to define the sediment fluxes. Thirdly, the ...


    By Inderscience Publishers

  • ENVIRONMENTAL MANAGEMENT: Algae recruited for waterways clean-up

    Most people have heard about the canary in the cage; the hapless sentinel that warns miners of lethal build-ups of poisonous gas by falling off its perch, dead. Researchers have applied a similar principle to their development of a procedure for identifying and removing toxicants from estuarine and coastal waters, using highly sensitive algae as toxicity test subjects. The use of such ‘lower ...

  • A data-driven waterway simulation model for inland waterway operation

    A waterway network can be characterised as a large queuing system with features of two-way traffic, tow variations, chamber assignment, and tow sequencing. Since no analytical model is fully sufficient to analyse the system's complexity, a data-driven waterway simulation model is developed to evaluate the overall performance of any particular operational and investment plan by considering network ...


    By Inderscience Publishers

  • A simulation approach in estimating the impact of channel on port capacity

    This paper addresses the impact of channel waterways on the overall port capacity. In particular, we proposed a definition and two performance measures that can be used to quantify this impact. We then developed a simulation model to simulate the channel activities for estimating the impact of channel under different operating conditions. The simulation results show that when port efficiency ...


    By Inderscience Publishers

  • Risk-based management of waterway safety

    Considering safety to be defined as an acceptable level of risk, waterway managers seek to minimise risks in order to maximise safety. Failures in waterway operations result in events that may require emergency response. A proactive management approach identifies potential risks (events, their likelihoods, and their adverse consequences) associated with waterway operations, and identifies areas ...


    By Inderscience Publishers

  • A simulation study of the accident risk in the Istanbul Channel

    The Istanbul Channel has a considerable amount of maritime traffic and is one of the most difficult-to-navigate waterways in the world. Ships are consequently prone to accidents. These accidents impose risks on the nearby population, property and the environment. Naturally, besides any adverse meteorological and geographical conditions, the increase in the volume of transit and local maritime ...


    By Inderscience Publishers

  • A Device for Evaluating One-Dimensional Compressive Loading Rate Effects

    It has long been suggested that the one-dimensional or uniaxial strain response of most soils subjected to high-intensity transient loads differs from the response measured under static conditions. As the time to peak pressure decreases, most soils exhibit a stiffening of the loading stress-strain response. That stiffening is usually referred to as a time or loading rate effect. Some researchers ...


    By ASTM International

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