Single-entry development for longwall mining. Research approach and results at Sunnyside No. 2 mine, Carbon County, Utah

Technical Report · Sat Jan 01 04:00:00 EST 1977

OSTI ID:7280520

Poad, M E; Waddell, G G; Phillips, E L

This Bureau of Mines report presents two phases of a research program to evaluate a single-entry system for longwall development. Organizations participating in the program, which began in July 1971, include the Bureau of Mines, the Mining Enforcement and Safety Administration, and the University of Utah, working under a cooperative agreement with Kaiser Steel Corp. at its Sunnyside mine in Utah. Part 1 of this report describes the present longwall mining practice, including a brief history, and discusses the advantages and disadvantages of a single-entry development system and its introduction in the United States. Part 2 of the report presents the research program, test design, instrumentation for ground and support evaluation, and the test results from the No. 2 mine. Subsequent reports will describe the research conducted in the No. 1 mine.

• Research Organization: Bureau of Mines, Washington, D.C. (USA)
• OSTI ID: 7280520
• Report Number(s): BM-RI-8252
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
016000 -- Coal
Lignite
& Peat-- Health & Safety
ALKANES
COAL MINING
COMPARATIVE EVALUATIONS
CRYOGENIC FLUIDS
DUSTS
EQUIPMENT
FLUIDS
GROUND SUBSIDENCE
HYDROCARBONS
LONGWALL MINING
MECHANICAL STRUCTURES
METHANE
MINING
MINING EQUIPMENT
ORGANIC COMPOUNDS
RESEARCH PROGRAMS
ROCK BURSTS
ROOM AND PILLAR MINING
SAFETY
SUPPORTS
UNDERGROUND MINING
VENTILATION