PRECISE MIX OF TRASH AND EARTH PRODUCES HIGHWAY FILL.

A multi-stage approach has been used together with intricate scheduling and equipment geared for fast-changing cut-and- fill assignments, in a unique "earthmoving" operation excavating 200,000 yd of trash 17 ft deep from two dumps and placing it as embankment material in a highway realignment project. In carefully balanced cycles, the trash is excavated, hauled, dumped, mixed with earth, and then covered with dirt. As a scheduling aid, the contractor uses a 1:50-scale contour map that identifies each cut and fill by number and color. Typically, work is forecast over a 2.233k period, with weekly updating. Specifications require a mix of one part trash with five parts suitable material from excavation other than type A. Each layer of mix must be covered with two layers of embankment material. The biodegradable material must not exceed 6 in. In a fill's first 9 ft., the settlement period is 60 calendar days. The second stage (60-day settlement) can go from 9 to 18 ft. high, but not at more than 1 1/3 ft. per week. From there placement cannot exceed 3 ft. per week. Details are given of the specific project currently underway. Rear dumps were chosen for the trash hauling. At the fill, trash is spread and compacted by either a Terex 82-50 or an International TD-26 dozer pulling a sheepsfoot roller. Dozers (to cover the trash fill), and bottom and dumps trailers (for earth hauling) utilized are described.

  • Corporate Authors:

    McGraw-Hill, Incorporated

    330 West 42nd Street
    New York, NY  USA  10036
  • Authors:
    • LAMB, B
  • Publication Date: 1975-6

Media Info

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Filing Info

  • Accession Number: 00098475
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 30 1975 12:00AM