Prestressed roof support system

Details Prestressed roof support system Prestressed roof support system

1975-10-31

1976-07-27

Taylor, Dennis L.

Mining or in situ disintegration of hard material

Processes

Forming blocks

299 11, E21D 2100

Patent

active

039712265

ABSTRACT:
A method of providing roof support by the use of prestressed support members. Sequentially the method calls for the drilling of a series of generally parallel holes in a mine roof such that they extend from one underground cavity to another; inserting support members like metal cables or rods into each of these holes to extend completely through the hole's entire length between the cavities; pretensioning each of said supports; forcing a liquid binder around the supports while in their holes; and releasing the forces on the supports after the binder has become cured by solidifying.

REFERENCES:
patent: 1630589 (1927-05-01), Taber
patent: 3306051 (1967-02-01), Howlett
patent: 3722158 (1973-03-01), Dykmans
patent: 3738071 (1973-06-01), Finsterwalder
patent: 3910546 (1975-10-01), Connors

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