| 摘要 |
The method involves rotatably inserting a standpipe (70) into an upper area of a ground by using a rotary drive (30) of a tubular drill pipe (20), where the standpipe surrounds the drill pipe and an annular space (76), which is formed between the drill pipe and the standpipe. The drill pipe is introduced into a bottom portion of the ground by the standpipe for construction of a tubular borehole. Rising fluid e.g. water, is exhausted from the borehole through the annular space and discharged by an ejection head (50) formed with an outlet hole. The drill pipe is designed as a high pressure injection linkage. An independent claim is also included for a drilling device for forming a borehole in a ground. |
