Roof support system for a mine and method for providing the same

Patent · Tue Dec 23 00:00:00 EST 1986

OSTI ID:7126947

Sherman, J L

An improved roof support system is described for a mine or the like comprising, a pair of plates secured to a roof of the mine at opposite sides thereof and adjacent opposing ribs of the mine, an elongated reinforcing member extending horizontally and transversely of the mine between the pair of the plates, the reinforcing member having a first rod means and a second rod means and adjustable means for joining the first rod means and the second rod means to vary an overall length of the reinforcing member, at least one of the first and second rod means having an enlarged bolt head end portion formed integral therewith, at least one of the pair of plates having an opening therein to receive the enlarged bolt head end portion of the reinforcing member therethrough, at least one of the plates having a surface adjacent the opening operable to abut at least a part of the enlarged bolt head of the reinforcing member, and the reinforcing member arranged to exert a tension on the first plate and the second plate as the bolt head end portion is urged against the respective plate surface. The tension is varied by rotation of at least one of the rod means in the adjustable means.

• Assignee: Price and Adams, Pittsburgh, PA
• Patent Number(s): US 4630974
• OSTI ID: 7126947
• Resource Relation: Patent File Date: Filed date 13 Mar 1985
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
SUPPORTS
DESIGN
OPERATION
UNDERGROUND MINING
COAL MINES
PLATES
REINFORCED MATERIALS
RODS
ROOF BOLTS
ROTATION
EQUIPMENT
MATERIALS
MECHANICAL STRUCTURES
MINES
MINING
MINING EQUIPMENT
MOTION
UNDERGROUND FACILITIES
012031* - Coal
Lignite
& Peat- Underground Mining- Strata Mechanics & Control- (1987-)