FIELD: construction.
SUBSTANCE: helical working organ includes a cylindrical stem with a tip and a helical blade with a diameter that increases bottom up and placed on the rod and the tip, and the helical blade and the tip are made with a toroidal profile. The radius of the toroidal surface of the tip and the diameter of the rod are selected from the ratio R/D=5, and the ratio of the length of the toroidal tip and the diameter of the stem makes h/D=1.85.
EFFECT: higher bearing capacity, reduced energy intensity of a process of insertion of a helical working organ, higher strength of soil due to even distribution and compaction of soil into walls of the well and along the helical working organ.
| Title | Year | Author | Number |
|---|---|---|---|
| SCREW DRILL BIT FOR FROZEN SOILS | 2019 |
|
RU2726753C1 |
| SCREW DRILL FOR FROZEN SOILS | 2020 |
|
RU2758920C1 |
| SCREW DRILL FOR FORMATION OF WELLS IN FROZEN SOILS | 2020 |
|
RU2726751C1 |
| SCREW DRILL FOR FROZEN SOILS | 2022 |
|
RU2787661C1 |
| WORKING MEMBER FOR DEVICE OF SCREW BORED PILES | 2008 |
|
RU2385383C1 |
| METHOD FOR INCREASING OIL CARRYING CAPACITY OF BALL BEARING | 2012 |
|
RU2495287C1 |
| DEVICE FOR FORMATION OF SCREW PROFILE ON WELL WALLS UNDER BORED PILES (ADDITIONAL) | 2013 |
|
RU2580120C2 |
| ROLLER BEARING | 2015 |
|
RU2613549C1 |
| DEVICE FOR FORMATION OF WELLS IN SOIL BY METHOD OF PIERCING | 2012 |
|
RU2487215C1 |
| SCREW-TYPE WORKING MEMBER FOR HANDLING FROZEN SOIL | 0 |
|
SU1078004A1 |
