rock pillar

rock pillar

[′räk ‚pil·ər]
(geology)
A column of rock produced by differential weathering or erosion, as along a joint plane.
In a cave, a pillar-type structure that is residual bedrock rather than a stalactostalagmite.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Wang, "Numerical analysis of Karst cave water inrush and a criterion for the setting width of water-resistant rock pillar," Mine Water and Environment, vol.
(a) Rock pillar between adjacent tunnels; (b) coal pillar in highwall mining system; (c) coal pillar in longwall mining system; (d) a block under plane-strain biaxial compression stress state.
Inside the Great Church, there is a painting of King Carol I with his hand on a rock pillar on which a piece is missing.
Assuming the seven rams would be just on the other side of the ledge where the small ram went, I carefully eased up behind a rock pillar.
While the 'driver was left to pick Iris own way', a navigator recorded mileage and bearings and 'at every halt, out came the map' and 'the last bit of course was plotted', wrote Bagnold in his autobiography; OPPOSITE, TOP LEFT: rock pillar, Libyan Desert, 1929-30.
The basic concept of the IMS method is that two features of strength characterize the rock pillar: basic and stabilized strength [5, 6].
[5] proposed the design method of sand-prevention coal and rock pillar for the safety of the working force in loose water-bearing strata and thin basement under hydraulic loads.
(4) The migration and collapse of top coal and roof is a dynamic process, in which the thickness of the rock pillar that should be controlled in the immediate roof is changing, while the thickness and configuration of the lower main roof are also dynamically changing.
The large-scale work features seven totem-like rock pillars, all in different fluorescent colours.
I imagined the protagonists and mythical creatures of the movie Avatar flying and weaving in and out of the rock pillars of their dream world.
Save Canadian Day offer for readers of PSholiday Hidden gem: Flowerpot Island in Georgian Bay's Fathom Five National Marine Park is famous for its natural "flowerpot" rock pillars, caves, historic light station and rare plants.
Other traces of their kingdom can be seen in the rock pillars of Yasodharman of 462 AD, where the Virk are clearly mentioned.