pillar

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pillar,

freestanding columnar supporting member. It is a general term, little used as an exact architectural definition except as applied to an upright support in the medieval styles, consisting of an assemblage of juxtaposed shafts and moldings; unlike the column, it does not adhere to the rules of the orders of architectureorders of architecture.
In classical tyles of architecture the various columnar types fall, in general, into the five so-called classical orders, which are named Doric, Ionic, Corinthian, Tuscan, and Composite.
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Pillar

A column or post supporting an arch or other superimposed load. Clustered or compound pillars consist of a central shaft with smaller shafts that are grouped around it.

Pillar

 

part of a bed or seam of a mineral that is left untouched when working a deposit in order to support the roof and protect mine excavations and surface structures.

Based on their purposes various types of pillars are distin guished: protective pillars (between levels, above and below drifts, between chambers), which protect objects during mining operations; fire safety pillars, which separate individual parts of the mine field from one another and help contain the fire, should it begin, within small areas; barrier pillars, which prevent surface or subterranean waters, gases, or loose silt from an excavation or unused mine from entering working mines; and support pillars, which prevent the rocks of the roof of the seam or ore body from caving in into an excavated area. The pillar size depends on the mining-geological conditions and the purpose of the pillar and is built according to standard guidelines.

pillar

[′pil·ər]
(civil engineering)
A column for supporting part of a structure.
(geology)
A natural formation shaped like a pillar.
A joint block produced by columnar jointing.
(mining engineering)
An area of coal or ore left to support the overlying strata or hanging wall in a mine.

pillar

pillar: Perpendicular style
A column, pier, pilaster, or post that is capable of providing major vertical support.

pillar

1. an upright structure of stone, brick, metal, etc., that supports a superstructure or is used for ornamentation
2. a tall, slender, usually sheer rock column, forming a separate top
References in periodicals archive ?
His parents went from pillar to post to locate him but in vain.
He said that after every crisis in the stock exchange a new bank has emerged on the economic landscape of Pakistan which must be probed as many investors are still running from pillar to post to get their money lost to corrupt brokers.
The suspension of salaries had caused de-motivation among the employees, who have been going from pillar to post to get their salaries released.
He further said that they went from pillar to post to trace the victim but to no avail.
I've been passed from pillar to post and spoken to seven different people within Knowsley Care, to no avail.
They pass you from pillar to post and are accountable to no one.
He was STILL man enough to face the media and put his dream move to Celtic in doubt by saying he was p***d off at playing while everyone was pulling him from pillar to post.
At the end of the day, we cannot keep on being pushed from pillar to post."
She added: ``I have been passed from pillar to post and I just feel I have been fobbed off.
The show's slot times have been pushed from pillar to post and no one ever knows when to watch it.
John Smith's Cup and earned himself a possible promotion to Group company when going from pillar to post for a cosy success in the Motability Supported by Royal SunAlliance Rated
Kim Smith has spoken out following Anthea Turner's claims that Bruno "beat her from pillar to post" when she was his girlfriend.