| 单词 | pneumatic caisson |
| 释义 | > as lemmaspneumatic caisson pneumatic caisson n. a caisson that can be sunk by extracting some of the air from within, and from which water can be subsequently evacuated by means of compressed air, enabling work to take place on the bed of a river, etc. ΚΠ 1869 N.Y. Herald Tribune 3 June 10 Foundations and pneumatic caissons. 1910 Times 24 Aug. 13/1 This is believed to be the deepest pneumatic caisson ever sunk. 1987 Financial Times (Nexis) 13 Apr. 34 The reinforced concrete structure..will be constructed on the river bank adjacent to an existing 4 metre high weir, and sink as a pneumatic caisson through gravel to its final position 14 metres below river level. 2003 Isis 94 545/2 The affliction known as the ‘Grecian bends’ that workers began to suffer as they dug pneumatic caissons to unprecedented depths of more than sixty feet. < as lemmas |
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