National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

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Engineering and Economic Evaluation of Explosive Casting of Overburden.

FE52321

Publication Date	1978
Page Count	236
Abstract	An engineering and economic evaluation of explosive casting defined as the use of blasting to move overburden to a spoil pile without handling was made. A series of design nomograms relating the geometry of blast rounds to properties of intact rock and the range over which material is cast were developed, and serve as a design hypothesis for future studies of the method. Economic evaluation indicates the method can be used to advantage for mining operators capable of increasing production which more than offsets the added cost of drilling and blasting. The method also has application when confronting an increased stripping ratio. While preliminary assessment is made of environmental and regulatory impacts, additional studies are required to demonstrate technical and economic feasibility. (ERA citation 04:017762)
Keywords	Overburden Surface mining Coal mining Economics Environmental impacts Explosive fracturing Feasibility studies Regulations Removal ERDA/012000
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	D'Appolonia Consulting Engineers, Inc., Pittsburgh, PA.; Department of Energy.
Document Type	Technical Report
NTIS Issue Number	197915
Contract Number	ET-78-X-01-5232

Engineering and Economic Evaluation of Explosive Casting of Overburden.

Engineering and Economic Evaluation of Explosive Casting of Overburden.
FE52321

Publication Date	1978
Page Count	236
Abstract	An engineering and economic evaluation of explosive casting defined as the use of blasting to move overburden to a spoil pile without handling was made. A series of design nomograms relating the geometry of blast rounds to properties of intact rock and the range over which material is cast were developed, and serve as a design hypothesis for future studies of the method. Economic evaluation indicates the method can be used to advantage for mining operators capable of increasing production which more than offsets the added cost of drilling and blasting. The method also has application when confronting an increased stripping ratio. While preliminary assessment is made of environmental and regulatory impacts, additional studies are required to demonstrate technical and economic feasibility. (ERA citation 04:017762)
Keywords	Overburden Surface mining Coal mining Economics Environmental impacts Explosive fracturing Feasibility studies Regulations Removal ERDA/012000
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	D'Appolonia Consulting Engineers, Inc., Pittsburgh, PA.; Department of Energy.
Document Type	Technical Report
NTIS Issue Number	197915
Contract Number	ET-78-X-01-5232