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Thread: Coal pile washout by heavy rains

  1. #1
    Posted by Vincent C. Ionita on June 30, 1999 at 08:38:32:

    During a heavy subtropical rain (10" in 24 hrs), coal from a compacted (inactive) pile was severely washedout.
    The coal pile was compacted by mobile equipment. The
    slopes of the pile does not exceede 15-20 degrees, and
    arount the base of the pile, a perimeter of Jersey
    barriers were installed to contain and retain the coal.
    Large quantities of coal were taken by the rainfall, filling drainage trenches located around the pile.
    Rain errosion crevasses are all over the pile. The coal
    is from Indonesia, top size 3", however has a large quantity of fines.

    Question: What means and methods are available to prevent coal washout? Tarps? Some latex base solutions?
    What will be feasible short of enclosure?

    Please reply by email.
    Thank you





  2. #2

    Re: Coal pile washout by heavy rains

    Posted by F. Castano on April 22, 2000 at 19:05:35:

    In Reply to: Coal pile washout by heavy rains posted by Vincent C. Ionita on June 30, 1999 at 08:38:32:

    Coal enclosures are becoming increasingly affordable. Our company, Geometrica, has supplied many structures to cover coal piles, including some up to 145m in diameter. To learn more about this option, please visit our website http://geometrica.com or send us your address and we will be happy to forward more information.




  3. #3
    Join Date
    Nov 00
    Posts
    6

    Re: Coal pile washout by heavy rains

    Posted by Bart Benschop on July 04, 1999 at 00:23:37:

    In Reply to: Coal pile washout by heavy rains posted by Vincent C. Ionita on June 30, 1999 at 08:38:32:

    We store grain in very large stock piles.
    Strong wind and rain cause major problems.
    We use concrete "L" shaped storage wall units
    around the base or steel structures in older
    versions.
    Over the top tarpaulins with ropes or sheets
    of corrugated iron.
    It is a skill to put the tarpaulins on
    correctly.
    Under windy conditions it is quite dangerous
    to put on tarpaulins.
    More permanent enclosures are very expensive.
    Coal stock piles normally do not have a retaining
    structure at the base.
    Normally on well drained area with collecting
    drains and settling pit.
    It may pay you to provide drains under the pile
    to get rid of accumulated water.

    Kind regards,

    Bart


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