EP0346941A2 - Méthode pour réaliser des éléments de construction dans le sol tels que des pieux, des ancrages ou similaires ainsi qu'un dispositif pour l'application de cette méthode - Google Patents
Méthode pour réaliser des éléments de construction dans le sol tels que des pieux, des ancrages ou similaires ainsi qu'un dispositif pour l'application de cette méthode Download PDFInfo
- Publication number
- EP0346941A2 EP0346941A2 EP89111793A EP89111793A EP0346941A2 EP 0346941 A2 EP0346941 A2 EP 0346941A2 EP 89111793 A EP89111793 A EP 89111793A EP 89111793 A EP89111793 A EP 89111793A EP 0346941 A2 EP0346941 A2 EP 0346941A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- jet pipe
- hole
- jet
- concrete
- annular space
- 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
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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
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/44—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile
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- 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
- E02D5/24—Prefabricated piles
- E02D5/32—Prefabricated piles with arrangements for setting or assisting in setting in position by fluid jets
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- 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
- E02D5/62—Compacting the soil at the footing or in or along a casing by forcing cement or like material through tubes
Definitions
- the invention relates to a method for producing components in the subsoil, such as piles, anchors, diaphragm walls or the like, with the features of the preamble of claim 1, and a device for carrying out this method with the features of the preamble of claim 9.
- EP-A-0064663 describes a method and a device for stabilizing slide slopes by attaching piles.
- Hardening building material is placed in a borehole.
- a valve pipe is inserted into the bottom of the borehole. This has several outlet openings one above the other.
- a pressure pipe is inserted into the valve tube, which has lateral outlet openings at the lower end. Sealing sleeves are arranged above and below this net.
- hardening building material is pressed in via this pressure pipe. This emerges through the openings in the valve pipe, blows up the surrounding hardened building material and enters the borehole environment via the cracks. This increases the frictional engagement of the pile with the borehole environment and thus the load-bearing capacity of such a pile.
- the disadvantage here is that it is not possible to compress the wall of the opening in the building ground or to expand this wall before the building material has hardened.
- the invention has for its object to provide a method for manufacturing components in the ground, such as piles, anchors or the like. And a device for carrying out the method, wherein the components are kept largely free of soil material, at least in the core cross section, whereby their load capacity and Strength is increased considerably. At the same time, it should be possible to insert reinforcement for the components.
- the features according to the invention ensure that the core cross section of the created component remains essentially free of building ground components, so that the full load-bearing capacity of the hardening building material is fully maintained over this cross-sectional area.
- reinforcements known per se when manufacturing such components.
- a pile hole 2 is created in the ground 1 by drilling, dredging or the like.
- the beam tube 3 closed at the bottom is first inserted into the pile hole 2.
- High pressure lines 4 are attached to the inner wall thereof. These end in nozzles 5, which are arranged in the wall of the jet pipe 3 near its lower end, preferably at a large distance.
- each nozzle 5 is fed by its own high pressure line 4. It would also be possible to supply the two nozzles 5 via only one high-pressure line. In this case, such a single high-pressure line 4 would first have to end in an annular chamber at the lower end of the jet pipe 3, to which the nozzles 5 are then connected.
- a carrier device (not shown) holds the jet pipe 3. It is used for lowering, lifting and rotating or pivoting the jet pipe 3.
- liquid building material is continuously pressed under high pressure into the high-pressure lines 4 located in the jet pipe 3 and introduced into the immediate subsoil 1 via the lateral nozzles 5 on the jet pipe 3 through the concrete annular space 6.
- the carrier device sets the jet pipe 3 and thus the nozzles 5 in a rotational movement while simultaneously lifting the jet pipe 3.
- the introduction of the liquid building material over the Nozzles 5 in the subsoil 1 take place along the length of the intended force application area of the pile.
- the rotary movement is not constantly rotating, but there is a back and forth movement of the jet pipe 3, that is to say a pivoting movement, so that the high-pressure lines 4 do not have to be fed via a special feed head.
- the jet pipe 3 is centered in the pile hole 2 by arranging at least two opposing nozzles 5, each of which is fed by an independent pump 9 with the same amount of compression at the same pressure.
- the diameter of the jet pipe 3 is matched to the local soil conditions and pile dimensions so that excess grouting material is largely compensated for by the volume released when the jet pipe 3 is pulled up.
- a pile hole 2 is created in the ground 1, which was drilled with the pipes.
- the piping 10 is shown partially drawn. Before the piping 10 was pulled, the jet pipe 3, the reinforcement 11 and the concrete 8 were introduced.
- the borehole piping 10 has a pipe cap 12 in which the jet pipe 3 is movably and sealingly guided.
- this cap 12 also has two valves 13, 14 for inlet and outlet of a pressure medium.
- the pressure medium consisting, for example, of cement milk, water or air, prevents or at least prevents the liquid building material continuously supplied by the jet nozzle 5 from breaking out through the concrete column upwards. Thereby the liquid building material is increasingly caused to penetrate into the soil of the building ground 1.
- the pile concrete is kept free from mixing with soil.
- an uncased pile hole 2 is e.g. by bentonite rinsing.
- the reinforcement 11 is within a modified beam pipe 3 '. This is now open below. It also fulfills a protective function and certainly keeps the reinforced core cross-section of the pile free of ground inclusions.
- the high pressure lines 4 with the nozzles 5 can also be arranged on the outside of the jet pipe 3 '.
- the outer annular space 2 between the jet pipe 3 'and building ground 1 can be kept tight.
- the mouths of the jet nozzles 5 are then immediately in front of the pile hole wall 7.
- the continuous high-pressure jet can have an optimal effect accordingly.
- the pile hole 2 is first uncased, possibly drilled with cement or bentonite flushing.
- the jet pipe 3 ' is lowered including the associated jet pressing device installed down to the bottom of the borehole.
- the reinforcement 11 is then introduced.
- Within the jet pipe 3 ' is now concrete from bottom to top by means of a backfill pipe introduced until the drilling fluid is completely displaced and flowed away at the top.
- the outer annular space 15 is filled with pumpable cement or cement-sand mortar at low pressure from the bottom upwards via the blasting device until the drilling fluid, e.g. the bentonite suspension, completely displaced and flowed away at the top.
- the continuous high-pressure jet supply takes place with constant turning back and forth and pulling up, so that the area assigned to a jet nozzle 5 is exposed to the high-pressure jet.
- the pressing process is carried out until the end of the desired force transmission path of the pile.
- the jet pipe 3 can be double-walled, so that the high-pressure lines 4 can be guided in the protection of this double wall.
- a borehole with tubing 10 has been made in the ground.
- the reinforcement 11 is located within the beam tube 3 open at the bottom, which also has a protective function.
- the annular space 15 between the subsoil 1 and the jet pipe 3 ' is filled up to the top with gritty concrete aggregates (Fig. 7 shows the operation in the backfilling).
- the gritty concrete aggregate is penetrated by the liquid building material expelled through the jet nozzle 5 and thereby becomes part of the pile concrete.
- the jet nozzle 5 expelled building material then penetrates into the surrounding building ground.
- the gritty concrete aggregate is on the one hand excellently suited to prevent or hinder the breaking away of the building material expelled through the jet nozzle 5 and on the other hand fulfills a protective filter function to keep the pile core cross section clean.
- the holes are first drilled with piping.
- the jet pipe 3 ' including the associated jet pressing device is installed projecting up to the bottom of the borehole.
- the reinforcement 11 is then inserted.
- concrete is introduced within the jet pipe 3 '.
- the borehole piping 10 is pulled and, in the process, filler material is added to the outer annular space.
- the supply of the high-pressure jet now takes place continuously while rotating and pulling up the jet pipe 3 'and the piping 10.
- the jet pipe 3' is moved back and forth by a swivel angle of 90 °.
- the pressing process is carried out until the end of the desired force transmission path of the pile.
- separate lance-shaped jet pipes 3 ⁇ can also be used.
- a protective tube 16 separate therefrom can be used.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3410830 | 1984-03-23 | ||
DE3410830A DE3410830A1 (de) | 1984-03-23 | 1984-03-23 | Verfahren zum herstellen von bauelementen im baugrund, wie pfaehlen, ankern, schlitzwaenden oder dergleichen, sowie eine vorrichtung zur ausfuehrung dieses verfahrens |
EP19850100126 EP0151389B1 (fr) | 1984-01-11 | 1985-01-08 | Méthode et dispositif pour la réalisation d'éléments de construction dans le sol tels que pieux, ancrages injectés, murs souterrains ou similaires |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85100126.3 Division | 1985-01-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0346941A2 true EP0346941A2 (fr) | 1989-12-20 |
EP0346941A3 EP0346941A3 (en) | 1990-02-07 |
EP0346941B1 EP0346941B1 (fr) | 1994-10-26 |
Family
ID=25819671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89111793A Expired - Lifetime EP0346941B1 (fr) | 1984-03-23 | 1985-01-08 | Méthode pour réaliser des éléments de construction dans le sol tels que des pieux, des ancrages ou similaires ainsi qu'un dispositif pour l'application de cette méthode |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0346941B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0541812B1 (fr) * | 1991-05-31 | 1997-08-20 | Chichibu Cement Co., Ltd. | Procede de construction permettant d'amander ou de renforcer un sol |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102605767A (zh) * | 2012-03-27 | 2012-07-25 | 浙江大学城市学院 | 一种预留注浆管预制桩及其成桩工艺 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1000598A (en) * | 1963-03-04 | 1965-08-04 | Raymond Int Inc | Method and apparatus for producing cast-in-place pile shells |
US3540225A (en) * | 1968-01-19 | 1970-11-17 | Ludwig Muller | Construction pile and a method of producing same in situ |
US3855804A (en) * | 1973-01-02 | 1974-12-24 | Dyckerhoff & Widmmann Ag | Apparatus and method for distending the distensible body of an earth anchor |
GB1530228A (en) * | 1977-06-30 | 1978-10-25 | Mueller L | Apparatus for use in the production of a concrete rammed pile |
-
1985
- 1985-01-08 EP EP89111793A patent/EP0346941B1/fr not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1000598A (en) * | 1963-03-04 | 1965-08-04 | Raymond Int Inc | Method and apparatus for producing cast-in-place pile shells |
US3540225A (en) * | 1968-01-19 | 1970-11-17 | Ludwig Muller | Construction pile and a method of producing same in situ |
US3855804A (en) * | 1973-01-02 | 1974-12-24 | Dyckerhoff & Widmmann Ag | Apparatus and method for distending the distensible body of an earth anchor |
GB1530228A (en) * | 1977-06-30 | 1978-10-25 | Mueller L | Apparatus for use in the production of a concrete rammed pile |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0541812B1 (fr) * | 1991-05-31 | 1997-08-20 | Chichibu Cement Co., Ltd. | Procede de construction permettant d'amander ou de renforcer un sol |
Also Published As
Publication number | Publication date |
---|---|
EP0346941A3 (en) | 1990-02-07 |
EP0346941B1 (fr) | 1994-10-26 |
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