Design of longwall mining system

Design of longwall mining system [electronic resource]

A premining investigation includes core drill holes, seismic studies, satellite imagery and, where the underground is accessible, bearing strength tests of roof and floor, and residual stress determination. Longwall retreat is the preferred method in the USA. Exceptions are few. The objective of pan...

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Bibliographic Details
Online Access: Online Access
Corporate Author: United States. Department of Energy (Researcher)
Format: Government Document Electronic eBook
Language:English
Published: Washington, D.C. : Oak Ridge, Tenn. : United States. Department of Energy. ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy, 1979.
Subjects:
Longwall Mining.
Planning.
Coal Deposits.
Coal Mining.
Conveyors.
Design.
Exploration.
Mine Roadways.
Mining Equipment.
Powered Supports.
Roofs.
Seismic Surveys.
Supports.
Underground Mining.
Equipment.
Geologic Deposits.
Geophysical Surveys.
Mechanical Structures.
Mining.
Resources.
Tunnels.
Coal, Lignite, And Peat.

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Call Number: E 1.99:conf-790894--1
E 1.99:conf-790894--1 Available

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