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Reexcavation |
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Reexcavation
the repeated excavation of rock, done in open-pit mining of mineral deposits and during earth moving in construction. Excavators, usually draglines, and single-bucket loaders are used. Reexcavation is often done in surface mines with complex flow sheets, where stripped overburden is reloaded into the area already worked. In these cases the insufficient working dimensions of the stripping excavator cause the stripped debris to partially or completely fall back onto the extraction bench. To clear the bench and increase the area of the work face, a pit dump excavator reexcavates part of the rock from the initial pile. The ratio of the reexcavated rock to the total amount initially excavated is called the reexcavation factor, or the factor of repeated dumping. The reexcavation factor is usually 0.5–1. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | The founders of Texas ReExcavation, LC, a Houston-based oilfield services company, have acquired GSPE Engineering, Inc. The environmental regeneration project A Million People: Black Country as an Urban Park, will create a 12-mile 'green bridge' park between West Bromwich and Walsall town centres, as well as helping in the regeneration of Wolverhampton's canal network and the reexcavation and unveiling of forgotten caverns and canal tunnels beneath Dudley. PO Box 2937 Longview, TX 75606 Phone: (903) 297-7833 Fax: (903) 297-6702 Texas ReExcavation PO Box 19483 Houston, TX 77224 Phone: (713) 783-3363 Fax: (713) 278-7881 The Sandbagger Corporation PO Box 626 Wauconda, IL 60084 Phone: (815) 363-1400 Fax: (815) 363-8809 www. |
Reexcavation |
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