System for backfilling a subterranean void

Details System for backfilling a subterranean void System for backfilling a subterranean void

1989-06-27

1990-11-06

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Chemical

405267, 405258, E02D 312

Patent

active

049681877

ABSTRACT:
A system for filling a spatial volume below the earth's surfaces with a dry fill material by supplying the dry fill to a borehole at the surfaces, the fill falling generally vertically through the borehole so as to exit vertically at an exit thereof into the spatial volume. An ejector is positioned below the exit and provides a high velocity air stream which intercepts the dry fill as it exits from the borehole so as to direct the fill in a generally horizontal direction away from the borehole into the spatial volume.

REFERENCES:
patent: 1404112 (1922-01-01), Goebl et al.
patent: 3440824 (1969-04-01), Doolin
patent: 3786639 (1974-01-01), Pineno et al.
patent: 4601612 (1986-07-01), Primrose
patent: 4666346 (1987-05-01), MacLeod

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