| 摘要 |
In a method of regulating the supply of driving-medium per stroke cycle to a pile-driving rammer the driving-medium supply per stroke cycle is adjusted for driving piles into the ground in the shortest time in dependence upon the value, measured by at least one scanner, of the result of at least two preceding strokes of the rammer and more in accordance with the driving-medium supply adjusted during the stroke which gave the better result.
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