By Energy Information Administration

This 1995 record describes the longwall mining approach and compares it with different underground mining equipment, analyzes crucial alterations in longwall mining during the last decade, and discusses elements that might form the way forward for longwall mining. utilizing facts from the power details management and personal area surveys, the document describes significant adjustments within the geologic, technological, and working features of longwall mining over the last decade. most vital, the file indicates how those adjustments ended in dramatic advancements in longwall mining productiveness. For readers attracted to the historical past of longwall mining and larger aspect on contemporary advancements affecting longwall mining, the file encompasses a bibliography.
Content:
entrance subject
• record of Tables
• checklist of Figures
• govt precis
• Preface
• desk of Contents
• 1. advent
2. an outline and historical past of Longwall Mining
three. alterations in Geologic, Technological, and working features of Longwall Mining, 1984-1993
four. adjustments in Longwall Mining functionality, 1983-1993
five. The Outlook for Longwall Mining
• References for know-how and historic improvement

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Extra resources for Longwall Mining

Sample text

54,033,000 35,222,000 Total Deferred Capital Costs . . . . . . . . . . . . . 95,893,000 86,845,000 Item Source: Science Applications International Corporation, “Development of RAMC Model Mines,” unpublished final report prepared for the Energy Information Administration, Office of Coal, Nuclear, Electric and Alternate Fuels (Norristown, PA, 1991), March 1991, p. 6, 144, and 176. , the Western Mine uses only two continuous miner units, whereas the Eastern Mine requires three).

Total Underground . . 9 -- Maryland Longwall . . . . . . . Total Underground . . 0 -- Ohio Longwall . . . . . . . Total Underground . . 4 -- Pennsylvania Longwall . . . . . . . Total Underground . . 6 -- Virginia Longwall . . . . . . . Total Underground . . 9 -- West Virginia Longwall . . . . . . . Total Underground . . 2 -- Appalachia Longwall . . . . . . Total Underground . . 8 -- Illinois Longwall . . . . . . . Total Underground . .

71 Eastern Kentucky 1983 . . . . . . . . . . . . . . . . . . 1990 . . . . . . . . . . . . . . . . . . 1993 . . . . . . . . . . . . . . . . . . 84 Maryland 1983 . . . . . . . . . . . . . . . . . . 1990 . . . . . . . . . . . . . . . . . . 1993 . . . . . . . . . . . . . . . . . . 78 Ohio 1983 . . . . . . . . . . . . . . . . . . 1990 . . . .

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