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 ?
Posting his seventh Cup success, Valenzuela dictated to perfection in the seven-runner field, leading from pillar to post and executing a ride commentator Tom Durkin hailed as a "wire-to-wire tour de force".
He said They want the Baba (referring to himself) to run from pillar to post for possession of his plot and will get one after his death.
Later, while talking to Mushahid Hussain Sayed here at PML House, the brother of Saifur Rehman Khan said that they were running from pillar to post without anybody coming to their rescue.
I've been passed from pillar to post and spoken to seven different people within Knowsley Care, to no avail.
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.
Pushing them from pillar to post, as one facility after another shuts down, distresses and upsets them and is testament to the often callous way that we, as a society, treat our old folk.
5 million Criminal Justice Centre will mean that people will not be moved from pillar to post to navigate the justice system, according to Solicitor General Harriet Har-man.
She has undertaken all the tests they required, but she is being pushed from pillar to post.
The show's slot times have been pushed from pillar to post and no one ever knows when to watch it.
The pair were trying to go from pillar to post when Air Adair, trained by John Gosden, jinked left into the running rail - fortunately a ribbon - while still in the lead early in the straight.
What is proposed will not helpus, the ordinary people are already sent from pillar to post and we certainly want no more of that.
BARKING-MAD Sean Hughes was in the dog house after being dragged from pillar to post by a pack of unruly mutts while shooting his new TV series.