英语词汇“driving block”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

driving block n. a heavy block of wood, metal, etc., placed above or beneath an object being struck with a piledriver, hammer, etc., in order to ensure an even distribution of the driving force.

ΚΠ

1765 R. Jones New Treat. Artific. Fireworks iii. 88 When cases were rammed on driving benches, which were formerly used, the works frequently miscarried, on account of the hollow resistance of the benches..; but this accident has never happened since the driving blocks have been used.

1862 S. Smiles Lives Engineers III. 412 In the case of the steam pile-driver..the whole weight of a heavy mass is delivered rapidly upon a driving-block of several tons weight placed directly over the head of the pile.

1901 Railway & Engin. Rev. 5 Oct. 644/1 The tie plates are driven to a seat by means of a driving block and sledge.

2002 Standard Specif. Constr. Local Streets & Roads (State of Calif., Dept. Transportation) xlix. 322 Driving heads or driving blocks which hold the pile in position directly under the hammer during driving shall be used.

单词	driving block
释义	> as lemmas driving block driving block n. a heavy block of wood, metal, etc., placed above or beneath an object being struck with a piledriver, hammer, etc., in order to ensure an even distribution of the driving force. ΚΠ 1765 R. Jones New Treat. Artific. Fireworks iii. 88 When cases were rammed on driving benches, which were formerly used, the works frequently miscarried, on account of the hollow resistance of the benches..; but this accident has never happened since the driving blocks have been used. 1862 S. Smiles Lives Engineers III. 412 In the case of the steam pile-driver..the whole weight of a heavy mass is delivered rapidly upon a driving-block of several tons weight placed directly over the head of the pile. 1901 Railway & Engin. Rev. 5 Oct. 644/1 The tie plates are driven to a seat by means of a driving block and sledge. 2002 Standard Specif. Constr. Local Streets & Roads (State of Calif., Dept. Transportation) xlix. 322 Driving heads or driving blocks which hold the pile in position directly under the hammer during driving shall be used. extracted from drivingn. < as lemmas
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