| 摘要 |
Splicing threaded dowel ( 1 ) for micropiles, characterized in that it includes several adjacent threads with a right or left helix, whose pitch is greater than or equal to 300. Unit shaped by such a dowel ( 1 ) and two micropile sections ( 3 ) with fins ( 7 ). Micropile with helical fins including such a unit. With tightening is obtained the alignment of the fins ( 7 ) of the adjacent sections.
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