FIELD: boring.
SUBSTANCE: instrument contains central tube, coaxial boring axis, at least, one oriented crosscut to boring axis edge, with several cutting teeth, and made as boring scoop transporting device for receive and/or transportation of gravel and sludge material, worked with cutting teeth. At the instrument boring head is fixed with, at least, two picks, located with advance of cutting teeth in boring direction, displaced from each other and distancing from each other forming central clear space. Picks are made arrow-shaped on lower ends with long outer edge and short inner one. For central soil column working horizontal edge is anticipated. Boring head is disconnectable fixed in tube receiving facility on lower end of central tube, which is made multiangular, especially quadrangle.
EFFECT: provision especially accurate piles construction.
8 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR DRILLING HOLE FOR BORED SCREW PILE FORMING | 2003 |
|
RU2261955C2 |
| DRILLING TOOL AND METHOD FOR DRILLING IN SOIL | 2014 |
|
RU2602260C2 |
| PROCEDURE AND FACILITY FOR DRILLING HOLES IN SOIL | 2007 |
|
RU2370619C2 |
| PROCESS OF MANUFACTURE OF BORING PILE | 2001 |
|
RU2220256C2 |
| DRILLING DEVICE AND DRILLING METHOD | 2002 |
|
RU2240418C2 |
| METHOD FOR INSTALLATION OF SCREW PILE IN PERMAFROST SOILS AND HELICAL SCREW FOR IMPLEMENTATION OF METHOD | 2022 |
|
RU2786081C1 |
| DRILL STRING FOR ERECTION OF BORED PILE IN SOIL-CEMENT CLADDING | 2019 |
|
RU2735077C1 |
| DRILLING RIG AND METHOD FOR DRILLING TOOL FEEDING IN GROUND | 2004 |
|
RU2282703C2 |
| DRILLING CUTTING BREAKING BIT | 2011 |
|
RU2481458C2 |
| METHOD AND DEVICES FOR DRIVING BORE-HOLES IN GROUND AT LAYING UNDERGROUND SERVICE LINES UNDER OBSTACLE | 1996 |
|
RU2127348C1 |
