pack builder

pack builder

[′pak ‚bild·ər]
(mining engineering)
One who builds packs or pack walls.
In anthracite and bituminous coal mining, one who fills worked-out rooms, from which coal has been mined, with rock, slate, or other waste to prevent caving of walls and roofs, or who builds rough walls and columns of loose stone, heavy boards, timber, or coal along haulageways and passageways and in rooms where coal is being mined to prevent caving of roof or walls during mining operations. Also known as packer; pillar man; timber packer; waller.
References in periodicals archive ?
Unlike hundreds of flat pack builders across the UK, Lindsay and Paul said that so far, they had not succumbed to such disasters, and even managed to build their self-assembly bed correctly, despite this being named the most problematic piece of furniture to build by 22% of people surveyed.