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A method in piling tubular bases, a combined drilling and piling rig, as well as use of the drill hammer of said rig
A method in piling tubular bases, a combined drilling and piling rig, as well as use of the drill hammer of said rig
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机译:一种在管形基础上打桩的方法,组合的钻探和打桩钻机以及该钻机的钻锤的使用
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摘要
A method in or relating to piling of e.g. tubular bases which are placed and, possibly, casted within a hole drilled out in earth mass in ground or the like is described. One uses a generally known drilling rig, in which a bit is assigned a drilling hammer, and drills a hold having a depth approximately corresponding to the base pipe. If there exists a need for piling, the drill string is swung aside, away from the hole, after having been pulled up, and one or, possibly, a plurality of piles is/are rammed down with a starting point at the bottom level of the bore hole. In order to drive the pile(s) down, the drilling hammer of the drilling rig is used.
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