pack wall

pack wall

[′pak ‚wȯl]
(mining engineering)
A wall of dry stone built along the side of a roadway, or in the waste area, of a coal or metal mine to help support the roof and to retain the packing material and prevent its spreading into the roadway.
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84 a pack Walls Crown Standard, Earth Balance and Originals emulsions (2.
The unique design, patented by RPC, was created using an innovative process known as Finite Elements Analysis, which sets ribs into the pack walls for exceptional vacuum resistance and compression strength.