FIELD: civil engineering.
SUBSTANCE: invention can be used in driving cast-in-place piles, deep sealing of grounds, etc. Proposed device contains pneumatic drift with fixing flange and longitudinally sectional expander. Longitudinal section are connected with pneumatic drift by flexible tie. Each longitudinal section is provided with fixing projection, each adapted for engagement with fixing flange. Fixing projection is arranged on inner side of longitudinal section and is displaced from rear end of longitudinal section to its front part.
EFFECT: improved reliability and enlarged capabilities of device when making blind holes.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR WIDENING BORE-HOLES IN GROUND | 1996 |
|
RU2109910C1 |
| GEAR TO SINK HOLE IN GROUND AND PROCESS OF FORMATION OF EXPANSION IN END OF HOLE WITH ITS USE | 2001 |
|
RU2186928C1 |
| DEVICE FOR CAST-IN-PLACE PILE FORMING IN GROUND | 2000 |
|
RU2250959C2 |
| GROUND HOLE REAMER | 1994 |
|
RU2057887C1 |
| EQUIPMENT FOR MAKING HOLES IN GROUND | 0 |
|
SU1788157A1 |
| REVERSIBLE PNEUMATIC DRIFT | 1999 |
|
RU2163954C1 |
| REVERSIBLE PNEUMATIC PUNCH (VERSIONS) | 2004 |
|
RU2257448C1 |
| EXPANDER OF GROUND WELLS | 2007 |
|
RU2368736C2 |
| DEVICE FOR EXPENSION OF BOREHOLES | 0 |
|
SU1596060A1 |
| METHOD AND DEVICE FOR CAST-IN-PLACE PILE FORMING | 2002 |
|
RU2236506C2 |
