Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Optimum Mine Designs to Minimize Coal Bump: A Review of Past and Present U.S. Practices.

Authors
Iannacchione-AT; Demarco-MJ
Source
Paper in Conf on Dep Exploitation in Natural Hazard Cond Academy of Mng & Metall Pp 73-87 :73-87
Link
NIOSHTIC No.
10011436
Abstract
Coal bumps have presented serious mining problems in the United States throughout the 20th century. Fatalities and injuries have resulted when these destructive events occur at the working face. Persistent bump problems can result in abandonment of large reserves or lead to premature mine closure. Through the years, alternative techniques such as artificial supports, extraction sequencing, destressing, pillar design changes, and specific pillar retreat practices have been successfully implemented to mitigate coal mine bumps. Several techniques have evolved for room-and-pillar operations that control the way the roof rock breaks, regulating the manner in which stresses are redistributed in the mined section. Special mine layouts employed in longwall mines have also proved to be successful in safely redistributing or containing excessive loadings. However, with ever-increasing production rates, greater overburdens, and new mining systems, the need to evolve even more effective bump control designs will continue to challenge the U.S. coal mine industry.
Publication Date
19910101
Document Type
OP;
Fiscal Year
1991
NTIS Accession No.
NTIS Price
Identifying No.
OP 182-92
NIOSH Division
PRC;
Source Name
Paper in Conf. on Dep. Exploitation in Natural Hazard Cond. Academy of Mng. & Metall., Pp 73-87
TOP