needling

needling

[′nēd·əl·iŋ]

(civil engineering)

Underpinning the upper part of a building with horizontally placed timber or steel beams.

(mining engineering)

Cutting holes or ledges in a coal bed or rock surface for receiving the ends of timber supports.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

needling

1. Attaching a base coat of thatch onto the battens of a thatched roof; by sewing them together with a large, flat metal needle.

2. A needle beam which provides temporary support of a load.

McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.