The lining of a shaft or pit with tubbing.
| 单词 | θ210343 |
| 释义 | society > occupation and work > industry > mining > [noun] > lining of pit-shaft (4) tunnelling1686 The lining of a shaft or pit with tubbing. tubbing1839 The lining of a pit-shaft or tunnel with a watertight casing: see tub, v. 2; concrete the casing of timber, masonry, or metal sections used for this. plank-timbering1881 the action of lining a shaft with frames constructed from planks. well tubbing1898 the lining of a well shaft; cf. tubbing, n. 2a. |
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