发明名称 A METHOD IN PILING TUBULAR BASES, A COMBINED DRILLING AND PILING RIG, AS WELL AS USE OF THE DRILL HAMMER OF SAID RIG
摘要 The invention relates to 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. One uses a generally known drilling rig, in which a bit (30) is assigned a drilling hammer (28), and drills a hole 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 (42) is/are rammed down with a starting point at the bottom level of the bore hole. In order to drive the pile(s) (42) down, the drilling hammer (28) of the drilling rig is used.
申请公布号 WO9813555(A1) 申请公布日期 1998.04.02
申请号 WO1996NO00228 申请日期 1996.09.26
申请人 ROEYNESTAD, TOM, TORALV 发明人 ROEYNESTAD, TOM, TORALV
分类号 E02D7/26;E21B7/00;E21B17/10;(IPC1-7):E02D7/26 主分类号 E02D7/26
代理机构 代理人
主权项
地址