| 摘要 |
Device for picking up the driving of piles with the aid of a computer to which the device is connected, and, as soon as a pile or a pair of piles has been driven in, knowing the depth to which it has been driven, the dimensions to its top or its bottom, the upset obtained when this dimension has been reached after driving with the piledriver ram, the number of piledriver ram blows which were necessary, the time it took, characterised in that it is composed of a magnetic support (1) fixed to an already driven pile, this support exhibiting, on its other face, a projecting hinge to which an articulated arm (3) is fitted, which arm is composed of two tubular assemblies in the form of an H articulated together, which presses against the pile to be studied, through the use of a coil spring (6) fixed to each of its ends onto the transverse bar (crossbar) of each H, a casing (12) housing a set of wheels and gears which transmit the driving-in parameters of the pile to a computer. <IMAGE>
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