EP0012486A1 - Method and apparatus for forming a reinforced concrete pile in an earth situs - Google Patents
Method and apparatus for forming a reinforced concrete pile in an earth situs Download PDFInfo
- Publication number
- EP0012486A1 EP0012486A1 EP79200750A EP79200750A EP0012486A1 EP 0012486 A1 EP0012486 A1 EP 0012486A1 EP 79200750 A EP79200750 A EP 79200750A EP 79200750 A EP79200750 A EP 79200750A EP 0012486 A1 EP0012486 A1 EP 0012486A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- auger
- rods
- withdrawal
- pipes
- indents
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
Definitions
- This invention relates to a method for forming a reinforced concrete pile in an earth situs, in which a hollow-shafted auger is screwed into an earth situs and as the auger is withdrawn from the hole, concrete is fed into the hole through the hollow core of the auger and reinforcing rods are provided in the concrete.
- Such a method is generally known; according to this known method an auger with a comparatively large diameter is used, which is driven into the ground like a corkscrew and which, after it has reached the requisite depth, is withdrawn again by rotating same at the same time. As the auger is withdrawn from the hole, concrete or the like is supplied through the hollow core of the auger, so that the borehole is being filled up beneath the withdrawing auger.
- said object is achieved in that during drilling an auger is used, the helical blades of said auger being provided with a series of openings or indents in line with each other and that during the drilling operation a bar or pipe projects through each series of openings or indents, whereby during the non-rotatably withdrawal of the auger and the introduction of the concrete the mods, which had been provided in the path of the bars, i.e. through the pipes before the withdrawal of the auger, will remain behind in the hole.
- an auger is used, the blades of which being coupled to each other in longitudinal direction of the auger by bars or pipes which have to cooperate with the rotating auger and which, therefore, have to move with respect to the earth entering between the auger blades.
- the bars are preferably the reinforcing rods, which remain in the hole when the auger is being withdrawn.
- the reinforcing rods are passed therethrough before the auger is withdrawn.
- a diagrammatic representation of part of a framework is indicated by reference numeral 1 and the gear case 2 of the auger is movable in vertical direction along said framework.
- the auger 3 comprises a hollow core 4 and communicates with a hose 5 through casing 2; concrete is fed through said hose.
- the hollow core is surrounded by helical blades 6 which, preferably, constitute a continuous helical line.
- Pipes 7 and 8 pass through a series of openings running parallel to the centre line of the auger and a reinforcing rod 9 may be inserted into said pipes.
- rods 9 are positioned within pipes 7 and 8 and in other pipes, if required, whereupon the auger is non-rotatably withdrawn while leaving the rods behind in the hole; simultaneously, said hole is being filled by feeding concrete into the bottom of the hole through hose 5 and hollow core 4.
- the helical bladee instead of pipes, it is also possible to provide the helical bladee with indents 10 or openings 11. During the drilling operation there are bars in said openings or indents and, preferably, they are reinforcing rods which remain behind in the hole when the auger is withdrawn.
- the pipes may be closed, e.g. by a plug, said plug being removed by the rods. It is now possible to install clean rods, e.e. which are not fouled by earth, and thus the adhesion between rods and concrete will be improved.
Abstract
Description
- This invention relates to a method for forming a reinforced concrete pile in an earth situs, in which a hollow-shafted auger is screwed into an earth situs and as the auger is withdrawn from the hole, concrete is fed into the hole through the hollow core of the auger and reinforcing rods are provided in the concrete.
- Such a method is generally known; according to this known method an auger with a comparatively large diameter is used, which is driven into the ground like a corkscrew and which, after it has reached the requisite depth, is withdrawn again by rotating same at the same time. As the auger is withdrawn from the hole, concrete or the like is supplied through the hollow core of the auger, so that the borehole is being filled up beneath the withdrawing auger.
- Often, serious problems are involved when a concrete pile of this kind is provided with a reinforcement. It is only after withdrawal of the auger that the reinforcement can be inserted into the concrete still fresh. In doing so, considerable resistance is experienced, so that only comparatively short lengths can be positioned and it is not quite certain in which direction the reinforcing rods will project.
- it is the object of this invention to provide an improved method and apparatus.
- In accordance with this invention, said object is achieved in that during drilling an auger is used, the helical blades of said auger being provided with a series of openings or indents in line with each other and that during the drilling operation a bar or pipe projects through each series of openings or indents, whereby during the non-rotatably withdrawal of the auger and the introduction of the concrete the mods, which had been provided in the path of the bars, i.e. through the pipes before the withdrawal of the auger, will remain behind in the hole. This means that during the drilling operation an auger is used, the blades of which being coupled to each other in longitudinal direction of the auger by bars or pipes which have to cooperate with the rotating auger and which, therefore, have to move with respect to the earth entering between the auger blades. Surprisingly, it was found that this happens and that the auger is properly being filled with earth, whereby only the earth which is substantially outside the rods or pipes but within the circumference of the auger is slighty stirred.
- When the auger has thus been installed at its proper depth the bars could be replaced by the reinforcing rods desired. This could be considered when there is a risk that during the drilling operation a comparatively thin reinforcing rod might bend. Therefore, during drilling, thick bars will be used, which are withdrawn when drilling has been completed and which are then replaced by the reinforcing rods.
- Naturally, the bars are preferably the reinforcing rods, which remain in the hole when the auger is being withdrawn. When through-pipes are used, the reinforcing rods are passed therethrough before the auger is withdrawn.
- It is thus achieved that the concrete supplied through the hollow core surrounds the rods already positioned in the hole. For the first time, it is thus possible to install reinforcing rods the full length, i.e. height of the pile.
- The invention will now be elucidated more in detail with reference to the accompanying drawing, wherein:
- Fig. 1 illustrates one embodiment of the method with an apparatus in accordance with the invention; and
- Fig. 2 illustrates a variant.
- In Fig. 1, a diagrammatic representation of part of a framework is indicated by reference numeral 1 and the gear case 2 of the auger is movable in vertical direction along said framework. The auger 3 comprises a
hollow core 4 and communicates with a hose 5 through casing 2; concrete is fed through said hose. The hollow core is surrounded by helical blades 6 which, preferably, constitute a continuous helical line. Pipes 7 and 8 pass through a series of openings running parallel to the centre line of the auger and a reinforcing rod 9 may be inserted into said pipes. - When the borehole has its requisite depth, as shown in Fig. 1, rods 9 are positioned within pipes 7 and 8 and in other pipes, if required, whereupon the auger is non-rotatably withdrawn while leaving the rods behind in the hole; simultaneously, said hole is being filled by feeding concrete into the bottom of the hole through hose 5 and
hollow core 4. - Instead of pipes, it is also possible to provide the helical bladee with indents 10 or openings 11. During the drilling operation there are bars in said openings or indents and, preferably, they are reinforcing rods which remain behind in the hole when the auger is withdrawn.
- At their lower ends, the pipes may be closed, e.g. by a plug, said plug being removed by the rods. It is now possible to install clean rods, e.e. which are not fouled by earth, and thus the adhesion between rods and concrete will be improved.
- It is also possible to carry out sounding tests through the pipes in order to check the assumed bearing capacity of the floor of the borehole.
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7812084A NL7812084A (en) | 1978-12-12 | 1978-12-12 | METHOD AND APPARATUS FOR MANUFACTURING AN ARMED CONCRETE POST IN THE GROUND. |
NL7812084 | 1978-12-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0012486A1 true EP0012486A1 (en) | 1980-06-25 |
EP0012486B1 EP0012486B1 (en) | 1982-05-12 |
Family
ID=19832058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19790200750 Expired EP0012486B1 (en) | 1978-12-12 | 1979-12-11 | Method and apparatus for forming a reinforced concrete pile in an earth situs |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0012486B1 (en) |
DE (1) | DE2962854D1 (en) |
HK (1) | HK66183A (en) |
MY (1) | MY8500047A (en) |
NL (1) | NL7812084A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8905166U1 (en) * | 1989-04-12 | 1990-06-28 | Delmag Maschinenfabrik Reinhold Dornfeld Gmbh & Co, 7300 Esslingen, De | |
NL9000498A (en) * | 1990-03-02 | 1991-10-01 | Fundamentum Bv | Pile-insertion method in ground - lifts tool and lowers again upon encountering dense sand stratum |
GB2355750A (en) * | 1999-10-30 | 2001-05-02 | Kvaerner Cementation Found Ltd | Forming piles |
GB2356882A (en) * | 1999-11-12 | 2001-06-06 | Kvaerner Cementation Found Ltd | An auger with a cutting element having recesses |
US10456762B1 (en) | 2015-03-26 | 2019-10-29 | Juneau County, a Wisconsin body corporate | Machine for mixing and conveying a road application mixture and the methods of use thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004005967A1 (en) * | 2004-02-06 | 2005-09-08 | Bauer Spezialtiefbau Gmbh | Archimedean screw for placing concrete in ground for construction of vertical walls in ground with mixed-in-place concrete has single spiral fin with cutouts surrounding circular-section tube |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1343902A (en) * | 1918-06-10 | 1920-06-22 | American Well Works | Weli-sinking apparatus |
US1604722A (en) * | 1924-08-04 | 1926-10-26 | Alexander G Rotinoff | Pile |
FR69922E (en) * | 1956-03-27 | 1959-01-09 | Pile driver | |
US3363422A (en) * | 1965-03-19 | 1968-01-16 | Lee A. Turzillo | Method and apparatus for anchoring a tie-down bar in an earth situs |
US3464216A (en) * | 1968-01-08 | 1969-09-02 | Lee A Turzillo | Method and means for forming cast-inplace reinforced concrete pile |
US4022286A (en) * | 1975-09-05 | 1977-05-10 | Leeco, Inc. | Auger |
-
1978
- 1978-12-12 NL NL7812084A patent/NL7812084A/en not_active Application Discontinuation
-
1979
- 1979-12-11 EP EP19790200750 patent/EP0012486B1/en not_active Expired
- 1979-12-11 DE DE7979200750T patent/DE2962854D1/en not_active Expired
-
1983
- 1983-12-15 HK HK66183A patent/HK66183A/en unknown
-
1985
- 1985-12-30 MY MY8500047A patent/MY8500047A/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1343902A (en) * | 1918-06-10 | 1920-06-22 | American Well Works | Weli-sinking apparatus |
US1604722A (en) * | 1924-08-04 | 1926-10-26 | Alexander G Rotinoff | Pile |
FR69922E (en) * | 1956-03-27 | 1959-01-09 | Pile driver | |
US3363422A (en) * | 1965-03-19 | 1968-01-16 | Lee A. Turzillo | Method and apparatus for anchoring a tie-down bar in an earth situs |
US3464216A (en) * | 1968-01-08 | 1969-09-02 | Lee A Turzillo | Method and means for forming cast-inplace reinforced concrete pile |
US4022286A (en) * | 1975-09-05 | 1977-05-10 | Leeco, Inc. | Auger |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8905166U1 (en) * | 1989-04-12 | 1990-06-28 | Delmag Maschinenfabrik Reinhold Dornfeld Gmbh & Co, 7300 Esslingen, De | |
NL9000498A (en) * | 1990-03-02 | 1991-10-01 | Fundamentum Bv | Pile-insertion method in ground - lifts tool and lowers again upon encountering dense sand stratum |
GB2355750A (en) * | 1999-10-30 | 2001-05-02 | Kvaerner Cementation Found Ltd | Forming piles |
GB2355750B (en) * | 1999-10-30 | 2003-12-17 | Kvaerner Cementation Found Ltd | Forming piles |
GB2356882A (en) * | 1999-11-12 | 2001-06-06 | Kvaerner Cementation Found Ltd | An auger with a cutting element having recesses |
US10456762B1 (en) | 2015-03-26 | 2019-10-29 | Juneau County, a Wisconsin body corporate | Machine for mixing and conveying a road application mixture and the methods of use thereof |
Also Published As
Publication number | Publication date |
---|---|
DE2962854D1 (en) | 1982-07-01 |
HK66183A (en) | 1983-12-23 |
EP0012486B1 (en) | 1982-05-12 |
MY8500047A (en) | 1985-12-31 |
NL7812084A (en) | 1980-06-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3604214A (en) | Means and method of making columnar structures in situ | |
US3499293A (en) | Method and apparatus for forming underground construction in situ | |
US3864923A (en) | Impacted casing method for installing anchor piles or tiebacks in situ | |
US3886754A (en) | Method of extending augered pile cavity through rock or like obstruction | |
DE1634237A1 (en) | Method for producing a tie rod in the ground | |
EP0012486A1 (en) | Method and apparatus for forming a reinforced concrete pile in an earth situs | |
US4065928A (en) | Method for constructing a reliable foundation in soft soil formations | |
EP0371533A1 (en) | Method for providing concrete foundation piles and hallow earth drill to be used for that purpose | |
US3485052A (en) | Method and means for forming concrete piles | |
EP2246482B1 (en) | Method and device for producing a localised low friction foundation element | |
EP2712964A1 (en) | Device and method for introducing a filling material | |
DE4137541C2 (en) | Tool for the production of in-situ concrete piles | |
US2928468A (en) | Method for boring wells | |
AT352774B (en) | DEVICE FOR DISMANTLING AND EXTRACTION OF SOIL MATERIAL IN PIPE DRIVING | |
EP0837190A3 (en) | Process and device for the controlled in-ground realisation of piles and bulkheads | |
DE1942857C3 (en) | Earth drilling machine for making floor slots | |
RU96122483A (en) | METHOD FOR STRENGTHENING THE LAND SLOW AND THE DEVICE FOR ITS IMPLEMENTATION | |
EP0084921A1 (en) | Piles | |
DE10317664B3 (en) | Process for inserting geothermal probe into an underground borehole comprises decoupling a hollow bore screw from, guiding the probe into the screw, removing the tip from the screw, removing the screw and introducing a filler | |
DE2449296A1 (en) | METHOD AND DEVICE FOR INTRODUCING A PIPE-SHAPED STRUCTURE INTO A SOIL INFORMATION | |
US3466879A (en) | Method and apparatus for making piling | |
DE10219862B4 (en) | Method and civil engineering device for producing a foundation column in a ground | |
JPS6046210B2 (en) | Horizontal force reinforcement pile construction method and its equipment | |
US1604722A (en) | Pile | |
DE2626762C2 (en) | Method of making pile foundations using precast concrete piles |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): BE DE FR GB NL |
|
17P | Request for examination filed | ||
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): BE DE FR GB NL |
|
REF | Corresponds to: |
Ref document number: 2962854 Country of ref document: DE Date of ref document: 19820701 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19901203 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19901215 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19901228 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19901231 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19910131 Year of fee payment: 12 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19911211 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Effective date: 19911231 |
|
BERE | Be: lapsed |
Owner name: HOLLANDSCHE BETON GROEP N.V. Effective date: 19911231 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19920701 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19920831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19920901 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |