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Mining Publication: Pumpable Roof Supports: An Evolution in Longwall Roof Support Technology
Keywords: Longwall mining Longwall shields Pumpable roof supports Roof fall protection
Original creation date: December 2008
Authors: TM Barczak, SC Tadolini
Peer Reviewed Journal Article - December 2008
Download PDF Document (1.16 MB)
NIOSHTIC2 Number: 20034924
Trans Soc Min Metall Explor 2008 Dec; 324:19-31
Pumpable roof supports provide an alternative approach to secondary support in underground mining. Unlike all other supports that are either partially or fully prefabricated prior to being transported into the mine, the pumpable support is fabricated in place in the mine entry. This reduces the underground material handling efforts and thus the injuries historically associated with in-mine support construction. On-site fabrication also facilitates application of the support in areas that are inaccessible to transportation equipment such as scoops or rail cars, making it ideal for many bleeder applications. One of the main advantages of the pumpable support is that it fully bridges from the mine floor to the roof, thereby eliminating the requirement of "topping off" the support with wooden wedges or crib blocks that soften most other support responses. This report examines the development of modern pumpable roof support technology and provides a full description of the performance capabilities of each of the support products now on the market.
Image of publication Pumpable Roof Supports: An Evolution in Longwall Roof Support TechnologyPeer Reviewed Journal Article - December 2008
Download PDF Document (1.16 MB)
NIOSHTIC2 Number: 20034924
Trans Soc Min Metall Explor 2008 Dec; 324:19-31
See Also
Analysis and Design Considerations for Superimposed Longwall Gate Roads
Controlling Respirable Dust in Coal Mining Operations
Degasification System Selection for U.S. Longwall Mines Using an Expert Classification System
Evaluation of Support and Ground Response as Longwall Face Advances into and Widens Pre-Driven Recovery Room
Examination of Design and Operation Practices for Longwall Shields
Longwall Retreat of Gate Road Pillars
Modeling and Prediction of Ventilation Methane Emissions of U.S. Longwall Mines Using Supervised Artificial Neural Networks
Optimizing Secondary Roof Support with the NIOSH Support Technology Optimization Program (STOP)
Overview of Coal Mine Ground Control Issues in the Illinois Basin
Reservoir Engineering Considerations for Coal Seam Degasification and Methane Control in Underground Mines
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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