|
| |
a. Insecure or easily caved wall of excavation. Pryor, 3
b. Ground that is incoherent, for example, soils, sand, peat, moss, or
waterlogged material. It may be semiplastic or plastic, such as wet clays.
All such deposits deform readily under pressure, and relief is obtained by
squeezing into openings, such as mine workings. The miner uses the term
running ground to indicate the difficulty of support and sometimes of
danger. See also: forepoling;
quicksand;
mud rush. Nelson
Source:
Dictionary of Mining, Mineral, and Related Terms
| |
|
