NZ788331B2 - Soil-displacement drill and method for forming a smooth foundation pile with such a soil-displacement drill - Google Patents
Soil-displacement drill and method for forming a smooth foundation pile with such a soil-displacement drillInfo
- Publication number
- NZ788331B2 NZ788331B2 NZ788331A NZ78833121A NZ788331B2 NZ 788331 B2 NZ788331 B2 NZ 788331B2 NZ 788331 A NZ788331 A NZ 788331A NZ 78833121 A NZ78833121 A NZ 78833121A NZ 788331 B2 NZ788331 B2 NZ 788331B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- drill
- soil
- flap
- substrate
- widening
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0038—Production methods using an auger, i.e. continuous flight type
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/56—Screw piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/66—Mould-pipes or other moulds
- E02D5/665—Mould-pipes or other moulds for making piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/22—Placing by screwing down
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
Abstract
Soil-displacement drill (1) for soil-displacing drilling into a substrate (2) for forming a foundation pile (3), comprising a drill pipe (4) with a pipe casing with a first outer diameter (D1), and a widening (5) which is configured as a displacer and for this has an outer casing with a second outer diameter (D2) which is greater than the first outer diameter (D) of the drill pipe (4), is provided at one end (16) of the drill pipe (4), and has an end (17) remote from this drill pipe (5) and which furthermore is provided with a screw blade (6) which protrudes relative to the outer casing for screwing the drill (1) into the substrate (2), and has an end (18) which is arranged at said end (17) of the widening (5) and is provided with an outlet opening (7) for the passage of material (9) that is introduced into the drill pipe (4) for forming the foundation pile (3). The drill (1) has a flap (8) which is arranged below the widening (5) and is movable between a first position in which the flap (8) is arranged in a zone out of line with the screw blade (6) and below the widening (5), and a second position in which said flap (8) is arranged below the widening (5) with an area which is at least as large as the greatest cross-section of the screw blade (6), between the outlet opening (7) and said end (18) of the screw blade (6). The invention also concerns a method for forming a smooth foundation pile (3) using such a drill (1). The drill eliminates the need for removing excavated soil during drilling (displacement method) and reduces complexity by not requiring a separate mechanism for filling the pile. Overall, this invention offers a streamlined method for constructing smooth foundation piles with minimal soil disturbance.
Claims (8)
1. Soil-displacement drill for soil-displacing drilling into a substrate for forming a smooth foundation pile, comprising: 5 - a drill pipe with a pipe casing having a first outer diameter; and - a widening which is configured as a displacer and having an outer casing with a second outer diameter that is greater than the first outer diameter of the drill pipe; - the drill which furthermore is provided with: 10 a screw blade for screwing the drill into the substrate; and an outlet opening for the passage of material that is introduced into the drill pipe for forming the smooth foundation pile; wherein the widening is provided at one end of the drill pipe, has an end remote from this drill pipe and is provided with said outlet opening, that the screw blade 15 protrudes relative to the outer casing of the widening and has a first end which is arranged at said end of the widening and that the drill has a flap which is arranged at a bottom of the widening and is movable between: - a first position in which the flap is arranged outside an imaginary extension of the screw blade, beyond its first end such that the flap allows the drill to 20 screw unhindered into the substrate; and - a second position in which said flap is arranged between the outlet opening and said end of the screw blade, such that an area of said flap which is at least as large as the greatest transverse cross-section of the screw blade, is positioned between the outlet opening and said first end of the screw blade, 25 such that the flap prevents the said material, when unscrewing the drill from the substrate, from entering a screw slot, which is formed in the substrate with the screw blade.
2. Soil-displacement drill according to Claim 1, wherein the flap is pivotably 30 attached to the widening.
3. Soil-displacement drill according to Claim 2, wherein the flap is positioned such that, in unhindered state when the drill is erected with the widening below the drill pipe, said flap hangs down in its second position. 5
4. Soil-displacement drill according to Claim 2 or 3, wherein the flap is positioned such that, when the drill is screwed into a substrate, said flap is held in its first position by the substrate.
5. Soil-displacement drill according to any of the preceding claims, wherein the 10 screw blade has a maximum thickness which is between 15 mm and 100 mm.
6. Soil-displacement drill according to any of the preceding claims, wherein the widening is provided with at least one second screw blade which protrudes relative to the outer casing for screwing the drill into the substrate, and has an end which is 15 arranged at said end of the widening and is provided with at least one second flap which is arranged at a bottom of the widening and is movable between: - a first position in which this second flap is arranged outside an imaginary extension of the second screw blade beyond its first end such that the flap allows the drill to screw unhindered into the substrate; and 20 - a second position in which said second flap is arranged between the outlet opening and said end of the screw blade, such that an area of the second flap which is at least as large as the greatest transverse cross-section of the second screw blade, is positioned between the outlet opening and said end of the second screw blade such that the second flap prevents the said material, when 25 unscrewing the soil-displacement drill from the substrate, from entering a screw slot, which is formed in the substrate with the second screw blade.
7. Method for forming a smooth foundation pile in a substrate by means of a soil- displacement drill comprising a drill pipe and a widening which is attached to an end 30 of the drill pipe, wherein the drill is drilled into the substrate, wherein material for forming the foundation pile is introduced into the drill pipe, and wherein the drill is withdrawn from the substrate , wherein the soil-displacement drill is a soil- displacement drill according to any of the preceding claims, that during drilling of the soil-displacement drill into the substrate, the flap remains in its first position and that on withdrawal of the soil-displacement drill from the substrate, the flap remains in its second position. 5
8. Method according to Claim 7, wherein on withdrawal of the soil-displacement drill from the substrate, the soil displacement drill is screwed out of the substrate with a pitch which is smaller than the pitch of the screw blade.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE20205033A BE1027995B1 (en) | 2020-01-16 | 2020-01-16 | SOIL DISPLACEMENT DRILL AND PROCEDURE FOR FORMING A SMOOTH FOUNDATION PILE WITH SUCH DISPLACEMENT DRILL |
| PCT/IB2021/050342 WO2021144773A1 (en) | 2020-01-16 | 2021-01-18 | Soil-displacement drill and method for forming a smooth foundation pile with such a soil-displacement drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ788331A NZ788331A (en) | 2025-03-28 |
| NZ788331B2 true NZ788331B2 (en) | 2025-07-01 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102008003968B3 (en) | drilling rig | |
| US7854572B2 (en) | Piling machine with high-pressure jet spiral bit and its piling method | |
| CN106246105A (en) | A kind of mechanical guide drilling tool | |
| JP2009121063A (en) | Service well, method of constructing service well, and structure of service well | |
| NZ788331B2 (en) | Soil-displacement drill and method for forming a smooth foundation pile with such a soil-displacement drill | |
| NZ788331A (en) | Soil-displacement drill and method for forming a smooth foundation pile with such a soil-displacement drill | |
| JP4867861B2 (en) | Method for preventing fluidization inhibition of groundwater, method for constructing retaining wall to prevent inhibition of groundwater flow, retaining wall constructed by the method, and method for constructing water passage | |
| US5803184A (en) | Rotatable drill pipe having an auger on a free end thereof | |
| US20140301791A1 (en) | Telescopic Foundation Screw Pile with Continuously Tapered Pile Body | |
| JP4765950B2 (en) | Drilling tools and drilling methods | |
| JP2008223434A (en) | Construction method for underground structure and underground structure constructed by the construction method | |
| CN108343055A (en) | The forward and reverse isometrical screw rod pile of one kind and drilling tool and its pile forming method | |
| KR20230094669A (en) | Drill and Drilling System for Reaming Having Reaming Control Device | |
| US3441097A (en) | Device in drills | |
| KR200384053Y1 (en) | Casing structure of drilling equipment | |
| NO316284B1 (en) | Start Bushing | |
| CN110130842B (en) | Prevent covering drilling rod and prevent covering and bore | |
| CA3158834C (en) | Soil-displacement drill and method for forming a smooth foundation pile with such a soil-displacement drill | |
| RU2820920C1 (en) | String shoe | |
| JP3821440B2 (en) | Filling material filling method | |
| CN211230230U (en) | Device for drilling formed foundation pile hole | |
| RU2719875C1 (en) | Assembly of drill string bottom for drilling of offshoots from horizontal part of uncased well | |
| KR200258937Y1 (en) | Pouring pipe structure of mortar pressure grauting | |
| RU2060348C1 (en) | Layout of drill column bottom | |
| JP2008223435A (en) | Construction method of underground structure, underground structure constructed by the construction method and tubular member |