Variable yielding mining crib support column

Details Variable yielding mining crib support column Variable yielding mining crib support column

1994-04-18

1995-08-08

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

248357, 405303, E21D 1100

Patent

active

054393256

ABSTRACT:
A roof support column used as a support between the roof and floor of a mine comprises a stacked series of hollow roof support cribs containing a mixture of light-weight aggregate such as volcanic lava, tuft or pumice, and a chemical foam contained in one chamber of a triple-walled high density paper tubing. The other chamber has honeycomb material therein. The combination of these materials results in a roof support crib which has the yielding characteristics of wood. Such cribs called variable yielding cribs are stacked and locked on top of one another to form a vertical cylindrical cribbing support column.

REFERENCES:
patent: 931466 (1909-08-01), Nellen
patent: 4194997 (1980-03-01), Edler
patent: 4195111 (1980-03-01), Rautenbach
patent: 4267222 (1981-05-01), Sanders
patent: 4565469 (1986-01-01), Chlumecky
patent: 5143484 (1992-09-01), Deul

Affiliated with

Also associated with

Rating

Variable yielding mining crib support column does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable yielding mining crib support column, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable yielding mining crib support column will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-967486