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    <title>Transport Research International Documentation (TRID)</title>
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Transport Research International Documentation (TRID)</title>
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      <title>DEVELOPMENT OF A NEW MARINE TRANSPORTATION SYSTEM FOR IRON ORE CONCENTRATES IN SLURRY FORM</title>
      <link>https://trid.trb.org/View/67348</link>
      <description><![CDATA[A new marine transportation system for iron ore concentrates is an effective combination of various conventional methods. It adopts the slurry method for loading and the grab method for unloading.  The new transportation system reduces iron ore concentrate transportation cost to the minimum.  Its biggest problem was the consolidation of slurried iron ore concentrates during transit, which resulted in a lower unloading efficiency.  This problem has been solved by the development of a new unloader grab bucket which assures a high unloading efficiency and a method of preventing consolidation.  A method of treating turbid water which arises in the loading operation by the slurry method has also been developed.  With these improvements, this marine transportation system can compete favorably with the conventional dry ore concentrate system in unloading efficiency.  It is also applicable to other ores which can be transported in the form of slurry.]]></description>
      <pubDate>Wed, 13 Apr 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/67348</guid>
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      <title>HYDRAULIC TRANSPORT OF PB ZN ORE FROM 450 M DEPTH TO SURFACE</title>
      <link>https://trid.trb.org/View/16808</link>
      <description><![CDATA[At the present time hydrotransport is being applied in Czechoslovakia in the ore mining industry.  The present state of research and the respective operating experiences are reflected in the results gained with the Kank ore mine transport-line in the Kutna Hora district, where Pb Zn ore with a 50 mm grain size is being transported to the surface from a 450 m depth.  The paper deals with the hoisting scheme and operating technology--including the feeder system and solids specification--and discusses the reasons for the choice of alternative transport facilities.  A short reference is made to the theory of vertical upward flow of heterogeneous mixtures which is one of the significant problems with the design of heterogeneous suspension transport systems for ore extraction.]]></description>
      <pubDate>Mon, 15 Jul 1974 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/16808</guid>
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      <title>THE KBI PARALLEL PIPELINES FOR SULFIDE CONCENTRATES</title>
      <link>https://trid.trb.org/View/16811</link>
      <description><![CDATA[This paper covers the development, construction and initial start-up operation of two 63.6 kilometer (39.5 miles) slurry pipelines located in the Murgul area of Turkey. Development techniques covering pyrite and copper concentrate slurries are discussed.  It is anticipated that more complete operating data on these lines will be offered in a paper to be prepared at a later date.]]></description>
      <pubDate>Mon, 15 Jul 1974 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/16811</guid>
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      <title>THE NEWLY-DEVELOPED MARINE TRANSPORTATION SYSTEM OF IRON ORE CONCENTRATE IN SLURRY FORM</title>
      <link>https://trid.trb.org/View/16814</link>
      <description><![CDATA[Consequent upon the studies which lasted for three years, the authors succeeded in developing a marine transporting system for iron ore concentrate in slurry form.  This new marine transportation system utilizes the slurry method for loading the ore concentrate and the grab method for unloading; it is an effective combination of the conventional various methods.  The biggest problem of this new system is the hard consolidation of the slurried ore concentrate in transit, which causes very inefficient unloading.  Therefore, studies were made of the development of the unloader grab bucket useful for highly efficient unloading of the ore concentrate and also of the method of reducing consolidation.  Moreover, the treatment of turbid water in the case of loading by means of the slurry method was also studied.  The studies were very successful, and the unloading method stands equal in efficiency to the conventional method of unloading the dry ore concentrate. This method can be used not only for the ore concentrate but also for other transportable ores.  This new transportation is a big stride forward in the marine transportation of slurried iron ore.]]></description>
      <pubDate>Mon, 15 Jul 1974 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/16814</guid>
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      <title>HYDRAULIC TRANSPORT OF MATERIALS TO AND FROM MARINE TERMINALS</title>
      <link>https://trid.trb.org/View/16815</link>
      <description><![CDATA[The analysis of a number of design system projects for the hydraulic transport of bauxite, coke, iron ore and wood chips through river or sea terminals has led to the establishment of criteria for choosing this means of transport.  Typical criteria applying to the terminals are: 1. The possibility of handling simultaneously, vessels carrying different types of cargo.  2. The possibility of handling different types of cargo through the same pipe systems and mixing and de-fluidising tanks.  3. Absence of interference with other port activities.  One of the design studies concerns the alternate use of piping systems for the export of oil products and the import of bauxite over a trestle connected to an off-shore jetty.  Hydrotransport is considered as an alternate means of discharging bulk cargo from vessels at a harbor berth and transmitting it to an inland aluminum plant.  In a coke and iron ore handling study, hydrotransport was proposed as an alternate method of supplying an upriver steelworks from a seaport. Hydrotransport of wood chips instead of moving the material in the form of logs from tropical inland forests to ocean-going ships lying at a river berth.  The introduction of hydrotransport to the traditional world of shipping may prove to be as difficult as that of pneumatic transport ashore half a century ago, although neither the civil nor the mechanical engineers involved foresee fundamental problems in applying the principle to existing or new berths.]]></description>
      <pubDate>Mon, 15 Jul 1974 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/16815</guid>
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      <title>THE ECONOMIC AND ENVIRONMENTAL IMPACT OF LONG DISTANCE SLURRY PIPELINES</title>
      <link>https://trid.trb.org/View/16839</link>
      <description><![CDATA[The bulk solid materials that are the most likely candidates for large scale transport by slurry pipelines are coal, iron ore concentrates, potash, phosphate rock, sulfur, cement rock, nonferrous metal ores and concentrates, and waste tailings from mineral processing plants.  Most of the foregoing materials are already being transported by pipelines in significant quantities over considerable distances.  The author believes that the true potential of slurry pipelines has barely been scratched and to illustrate the point briefly reviews the salient points of four proposed slurry pipeline projects which are receiving serious consideration in various parts of the world.  1. A coal slurry pipeline about 1000 miles long, to transport between 30 and 40 million tons per year of low sulfur western coal, from the Colorado plateau to the lower Mississippi Valley.  2. A potash slurry pipeline about 900 miles long to transport about 6 million tons per year of potash from Southern Saskatchewan to Vancouver on the Pacific Coast.  3. An iron ore slurry pipeline about 500 miles long to transport about 25 million tons per year of iron ore from deep in the Amazon Valley, in Brazil, to a shipping port on the Atlantic Coast.  4. A tailing disposal pipeline system, with a maximum length of about 46 kilometers to collect tailings from several mines in Northern Luzon, in the Philippines, which are currently discharging their tailing into two rivers, and transport the tailing slurry to an offshore disposal point on the bottom of the sea.]]></description>
      <pubDate>Mon, 15 Jul 1974 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/16839</guid>
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      <title>ECONOMICS OF SLURRY PIPELINE SYSTEMS</title>
      <link>https://trid.trb.org/View/16840</link>
      <description><![CDATA[The economics of transportation of solids in slurry pipeline systems is presented, including the impact of cost escalation on this transportation mode.  Costs of alternate forms of transportation are discussed.  The physical dimensions and experience with existing commercial systems are reviewed, and the environmental impacts and energy requirements of commercial slurry pipeline transportation systems are described.]]></description>
      <pubDate>Mon, 15 Jul 1974 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/16840</guid>
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