Thrust bolting: roof bolt support apparatus

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868375

Tadolini, Stephen C ^[1]; Dolinar, Dennis R ^[2]

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1. Lakewood, CO
2. Golden, CO

A method of installing a tensioned roof bolt in a borehole of a rock formation without the aid of a mechanical anchoring device or threaded tensioning threads by applying thrust to the bolt (19) as the bonding material (7') is curing to compress the strata (3) surrounding the borehole (1), and then relieving the thrust when the bonding material (7') has cured.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
• Assignee: United States of America as represented by Secretary of (Washington, DC)
• Patent Number(s): US 5127769
• OSTI ID: 868375
• Country of Publication: United States
• Language: English

Related Subjects

thrust
bolting
roof
bolt
support
apparatus
method
installing
tensioned
borehole
rock
formation
mechanical
anchoring
device
threaded
tensioning
threads
applying
19
bonding
material
curing
compress
strata
surrounding
relieving
cured
roof bolt
bonding material
support apparatus
rock formation
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