RIVERBED RETRIEVAL BOLSTERS AGGREGATES SUPPLY SOURCES

The extraction (using ladder/bucket and hydraulic/ pneumatic) and processing is described of material from the shallow (approximately 60 ft) bed of the Ohio River. The 200-ft-long, 53-ft-28d3, ladder/bucket dredge is fitted with 91 cast austnitic manganese steel buckets, connected through pins and bushings, and running around a 100-ft c-c ladder arrangement that somewhat resembles an enormous chain saw. Material excavated from the riverbed is dumped onto a 5 x 10-ft vibrating screen, and from there into a second bucket lift that raises the aggregates to the top of the dredge. In a highly satisfactory hydraulic/pneumatic dredge operation, each suction dredge includes a rotating tooth cutter head that chews up the somewhat consolidated river bottom. Details of the dredge operation are outlined. The latter approach has an advantage over the bucket/ladder process in terms of initial costs. However, it involves handling more water which has to be disposed of, and involves extra power and equipment.

  • Corporate Authors:

    McGraw-Hill, Incorporated

    330 West 42nd Street
    New York, NY  United States  10036
  • Authors:
    • Higgins, L R
  • Publication Date: 1976-1

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00132906
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 5 1976 12:00AM