EP0634528A2 - Procédé de placement d'une suspension liante - Google Patents

Procédé de placement d'une suspension liante Download PDF

Info

Publication number
EP0634528A2
EP0634528A2 EP94111057A EP94111057A EP0634528A2 EP 0634528 A2 EP0634528 A2 EP 0634528A2 EP 94111057 A EP94111057 A EP 94111057A EP 94111057 A EP94111057 A EP 94111057A EP 0634528 A2 EP0634528 A2 EP 0634528A2
Authority
EP
European Patent Office
Prior art keywords
rod
compressed air
linkage
interior
binder suspension
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
Application number
EP94111057A
Other languages
German (de)
English (en)
Other versions
EP0634528A3 (fr
EP0634528B1 (fr
Inventor
Norbert Schuhmacher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Keller Grundbau GmbH
Original Assignee
Keller Grundbau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Keller Grundbau GmbH filed Critical Keller Grundbau GmbH
Publication of EP0634528A2 publication Critical patent/EP0634528A2/fr
Publication of EP0634528A3 publication Critical patent/EP0634528A3/fr
Application granted granted Critical
Publication of EP0634528B1 publication Critical patent/EP0634528B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • 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
    • 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
    • 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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades

Definitions

  • the invention relates to a method for producing solidified or sealing bodies in the ground, in particular in the form of columns or lamellae, in which a drill and injection rod is sunk and pulled again with the application of binder suspension.
  • the invention further relates to a drilling and injection rod for performing the method according to the invention.
  • Methods of the type described above are carried out with a low injection pressure of approximately 10 bar as a simple injection method and with a high pressure of 200 to 600 bar as a high-pressure injection method; the latter are known by the applicant under the Soilcrete brand name (VDI-Lexikon Bauingenieur Weg, Düsseldorf 1991, p. 270). It is customary here that a smooth, double-walled pipe rod, which is provided with a drill bit, also serves as a drill and injection rod. After the drill pipe has sunk, binder suspension is applied during the drawing process via nozzles in the vicinity of the drill bit, which are supplied via feed channels between the walls of the drill pipe.
  • the binder suspension in a high-pressure cutting jet or instead to apply the binder at a relatively low pressure and also to use water in a high-pressure cutting jet.
  • the high-pressure cutting jet can be coated with compressed air, a further supply duct for compressed air being formed in the interior of the double walls of the rod assembly.
  • lamellar solidified bodies are formed from a mixture of binder suspension and soil material in accordance with the alignment of the nozzles; the injection rod is pulled in a rotating manner, the rotational speed being the pulling speed is to be coordinated, columnar solidified soil bodies are formed from binder suspension mixed with soil material.
  • a drilling device for a high-pressure injection method in which a wall-mounted linkage for a high-pressure suspension jet is arranged so as to be longitudinally displaceable in a further double-walled linkage for supplying flushing medium.
  • Both rods have their own drill bits.
  • This design requires particularly complicated drive means.
  • the proposed procedure is extremely complex, with excess suspension flowing back to the surface in the annular space between the two rods. The risk of this annulus becoming blocked is addressed and should not be neglected.
  • the present invention is based on the object of providing a method and a device for carrying out the method of the type mentioned at the outset which, even in the presence of heavy soils, permits the drilling and injection method described above to be carried out in one operation.
  • the solution consists in a method which is characterized in that the rod is brought down in the auger drilling method and that excess material is discharged through the interior of the drill and injection rod when the rod is pulled and the binder suspension is applied.
  • the auger drilling method allows drilling in dense soils in a manner known per se.
  • the excess material rising in the borehole when the suspension is brought out, which is considerably impeded by a screw, can flow out through the interior of the rod according to the invention, so that despite the use of the screw drilling method, the injection according to a normal injection method with a pressure of about 10 bar or the injection after the high-pressure injection process with pressures of 200 to 600 bar can be carried out without problems, without the screw of the rod interfering with the return material.
  • the method is particularly advantageously carried out in such a way that compressed air is fed to the interior of the rod, so that the dough speed of the material in the interior is increased significantly. This loosens up the return material and prevents clogging of the inside of the boom, even if the soil is firm. It is particularly advantageous if compressed air is supplied to the interior of the boom at different heights.
  • a high-pressure injection method can be modified such that the cutting jet used is encased in compressed air by arranging ring nozzles for compressed air concentrically with the cutting jet nozzles.
  • the cutting jet can be formed by binder suspension fed under high pressure or by water fed under high pressure, in the latter case the binder suspension being fed again under lower pressure.
  • the rod can be pulled non-rotating, whereby part of the task of the cutting jet is anticipated by enlarging the borehole;
  • the boom can be pulled in a direction opposite to the direction of rotation when sinking to protect the material against excessive loads.
  • a drilling and injection rod suitable for carrying out the above-mentioned method with a double-walled tubular body which forms a central interior and an annular space, which is provided for guiding binder suspension and has at least one nozzle outlet at the lower end of the rod to the environment, is characterized according to the invention from the fact that at least one helical worm gear is attached to the outside of the tubular body and the tubular body has at least one jacket opening at the lower end of the rod connecting the central interior with the surroundings.
  • This jacket opening forms a passage channel through the two walls of the tubular body, which is sealed against the annular space, which serves for the supply of binder suspension, water and compressed air.
  • the jacket opening can be designed in such a way that the return of material from the environment into the interior and the outflow is promoted; especially when a certain direction of rotation of the linkage is provided when pulling.
  • the at least one jacket opening can preferably be covered with a closure flap which can be opened or removed by pressurizing the interior of the tubular body. This effectively prevents the interior of the tubular body from becoming clogged with soil material which is not loosened or suspended by binder suspension when the rod is being sunk.
  • a particularly preferred new embodiment is that at least one outlet nozzle for air to the interior of the tubular body is arranged in the linkage, preferably even a plurality of outlet nozzles to the interior are arranged at different heights in order to use the method previously described for loosening the return material in the interior to be able to.
  • This outlet nozzle is preferably arranged above the jacket opening.
  • either two different compressed air supply lines can be provided in the annular space in order to generate a different pressure level, or - preferably in association with the nozzles - means for reducing the pressure can be provided in front of at least one type of nozzle.
  • the outlet nozzles for suspension are arranged below the at least one jacket opening. As a result, the return flow of suspension through the jacket opening when pulling the rod is kept low.
  • At least one outlet nozzle for a cutting jet - in particular from water - is arranged above the at least one jacket opening.
  • a drilling and injection rod 1 which comprises a double-walled tubular body 2, which forms an annular space 3 and a central interior 4.
  • a worm gear 5 shown in view is attached on the outside of the tubular body.
  • a jacket opening 6 is provided in the tubular body, which ends with a drill tip 7.
  • the annular space 3 is formed into a longitudinal channel 8 for suspension and a longitudinal channel 9 for compressed air.
  • Two radial nozzles 10, 11 extend from the longitudinal channel 8 and deliver the suspension, in particular in the high-pressure jet. These nozzles are encased by ring nozzles 12, 13 for compressed air.
  • a further nozzle 14 goes from the longitudinal channel 9 for compressed air into the interior 4 for the return material.
  • the nozzles 10, 11 are located below the jacket opening 6 in the tubular body, the nozzle 14 above the jacket opening.
  • the annular space 3 is divided into a longitudinal channel 8 for suspension, a longitudinal channel 9 for compressed air and a longitudinal channel 15 for cutting water.
  • a radial nozzle 16 extends from the longitudinal channel 8 and delivers the suspension.
  • a nozzle 17 emerges from the longitudinal channel 15 and delivers cutting water under high pressure. This is through an annular nozzle 18 for Compressed air jacketed.
  • a further nozzle 14 leads from the longitudinal channel 9 for compressed air into the interior 4 for the return material.
  • the nozzle 16 for suspension is located below the jacket opening 6 in the tubular body, the nozzles 17 and 14 above.
  • the linkage according to the invention can be composed of individual longitudinal sections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Agronomy & Crop Science (AREA)
  • Soil Sciences (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Earth Drilling (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Paper (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
EP94111057A 1993-07-15 1994-07-15 Procédé de placement d'une suspension liante Expired - Lifetime EP0634528B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4323766 1993-07-15
DE4323766A DE4323766A1 (de) 1993-07-15 1993-07-15 Verfahren zum Ausbringen von Bindemittelsuspension

Publications (3)

Publication Number Publication Date
EP0634528A2 true EP0634528A2 (fr) 1995-01-18
EP0634528A3 EP0634528A3 (fr) 1995-09-06
EP0634528B1 EP0634528B1 (fr) 1997-04-16

Family

ID=6492916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94111057A Expired - Lifetime EP0634528B1 (fr) 1993-07-15 1994-07-15 Procédé de placement d'une suspension liante

Country Status (3)

Country Link
EP (1) EP0634528B1 (fr)
AT (1) ATE151834T1 (fr)
DE (2) DE4323766A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7198434B2 (en) 2004-07-13 2007-04-03 Berkel & Company Contractors, Inc. Full-displacement pressure grouted pile system and method

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19509053A1 (de) * 1995-03-14 1996-09-26 Coplan Ing Gmbh Verfahren zur Stabilisierung von bindigen Böden mit ungenügender Tragfähigkeit
DE19845132A1 (de) * 1998-10-01 2000-04-06 Hossein Hosseini Tudeshki Verfahren und Anlage für die Verdichtung von bindigem und nichtbindigem Gut (z. B. Lockergestein) durch Drehspiralverdichtung bzw. Drehspiralstopfverdichtung
DE10003121A1 (de) * 2000-01-26 2001-08-09 Bilfinger Berger Bau Vorrichtung und Verfahren zur Injektion eines Injektionsmittels in den Boden
DE10150278B4 (de) * 2001-10-12 2006-07-06 Tracto-Technik Gmbh Verfahren und Vorrichtung zum Bodenstabilisieren
DE10308330B4 (de) * 2003-02-26 2007-06-14 Bauer Spezialtiefbau Gmbh Injektionsvorrichtung
CN101614008B (zh) * 2009-07-21 2011-04-06 苏州二建建筑集团有限公司 用于压密注浆的注浆头

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB796959A (en) * 1955-06-06 1958-06-25 Cementation Co Ltd Improvements in or relating to the treatment of subterranean formations
US3875751A (en) * 1967-06-14 1975-04-08 Kjeld F W Paus Strengthening cohesive soils
GB2062072A (en) * 1979-10-31 1981-05-20 Sanwa Kizai Co Ltd Method of and Apparatus for the Construction of Mixed or Augered-in-place Piles

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1234604A (fr) * 1967-06-14 1971-06-09
NL151761B (nl) * 1970-11-12 1976-12-15 Yoshio Ichise Werkwijze voor het onder druk inspuiten van een bodemverharder.
GB1374705A (en) * 1971-05-11 1974-11-20 Linden Alimak Ab Implement for stabilising cohesive and friable earths
SE383907B (sv) * 1974-06-04 1976-04-05 Linden Alimak Ab Anordning vid markstabiliseringsutrustning
JPS61207712A (ja) * 1985-03-12 1986-09-16 N I T:Kk 地盤改良工法及びその装置
DE3718480C2 (de) * 1987-06-02 1994-04-14 Bauer Spezialtiefbau Bohrvorrichtung für ein Hochdruck-Injektions-Bohrverfahren und Bohrverfahren unter Verwendung der Bohrvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB796959A (en) * 1955-06-06 1958-06-25 Cementation Co Ltd Improvements in or relating to the treatment of subterranean formations
US3875751A (en) * 1967-06-14 1975-04-08 Kjeld F W Paus Strengthening cohesive soils
GB2062072A (en) * 1979-10-31 1981-05-20 Sanwa Kizai Co Ltd Method of and Apparatus for the Construction of Mixed or Augered-in-place Piles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BAUTECHNIK ERNST Ÿ SOHN VERLAG, BERLIN, DE, Bd.67, Nr.7, 1990 Seiten A8 - A9, XP000195074 'Soilcrete f}r wasserundurchl{ssige Sohlen und W{nde von Baugruben' *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7198434B2 (en) 2004-07-13 2007-04-03 Berkel & Company Contractors, Inc. Full-displacement pressure grouted pile system and method

Also Published As

Publication number Publication date
ATE151834T1 (de) 1997-05-15
EP0634528A3 (fr) 1995-09-06
EP0634528B1 (fr) 1997-04-16
DE4323766A1 (de) 1995-01-19
DE59402426D1 (de) 1997-05-22

Similar Documents

Publication Publication Date Title
DE3225808C2 (de) Werkzeug und Verfahren zur Herstellung eines Bohrlochs mit verfestigter Wand
DE3603048A1 (de) Verfahren zur baugruendungsverbesserung und vorrichtung zur durchfuehrung des verfahrens
DE2124385C3 (de) Verfahren zum Injizieren eines erhärtenden flüssigen Stoffes in den Baugrund und Vorrichtung zur Durchführung des Verfahrens
DE3718480C1 (de) Bohrvorrichtung fuer ein Hochdruck-Injektions-Bohrverfahren
EP0548588B1 (fr) Dispositif pour réaliser des forages dans le sol
DE3331291C2 (de) Verfahren zum Abtrennen des ein unterirdisch verlegtes Kabel umgebenden Erdreichs zur Demontage des Kabels, und eine Vorrichtung zur Durchführung des Verfahrens
EP0522446B1 (fr) Procédé pour contrÔler la direction d'un appareil de forage du sol et dispositif pour l'exécution de forages
DE19504484C1 (de) Gerät zum Entfernen des ein oder mehrere unterirdisch verlegte Kabel umgebenden Erdreichs von den Kabeln
EP0634528B1 (fr) Procédé de placement d'une suspension liante
EP0474070A1 (fr) Méthode et dispositif pour produire un rideau étroit ou souterrain dans la terre
DE2529380A1 (de) Bohrwerkzeug
DE3738420A1 (de) Verfahren und vorrichtung zur herstellung von pfaehlen im erdreich
DE3238003A1 (de) Verfahren und vorrichtung zum lockern landwirtschaftlich genutzten bodens
DE19712181B4 (de) Bohrkrone
DE3721655C2 (fr)
EP1002932B1 (fr) Procédé et dispositif pour le remplacement de conduites sans excavation
AT393292B (de) Vorrichtung zur herstellung von durch zugabe von binde- oder abdichtemitteln verdichteten bodenabschnitten
DE3501215C2 (fr)
DE3743507A1 (de) Verfahren und vorrichtung zur herstellung von pfaehlen im erdreich
DE3728270A1 (de) Verfahren und vorrichtung zur herstellung von betonpfaehlen im boden
EP0795678A1 (fr) Dispositif d'élargissement de la section d'un forage pilote
DE3112465C2 (de) Verfahren zum Entfernen von festen Rückständen aus Großbehältern wie Bunkern, Silos, Tanks o.dgl.
DE3029963A1 (de) Duese und verfahren zum stroemungsmittelstrahl-bohren
DE3737259C1 (en) Apparatus and method for high-pressure injection
DE19503177C1 (de) Verfahren zur Herstellung von Bohrpfählen

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

Kind code of ref document: A2

Designated state(s): AT BE CH DE FR GB LI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB LI

17P Request for examination filed

Effective date: 19950929

17Q First examination report despatched

Effective date: 19951113

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB LI

REF Corresponds to:

Ref document number: 151834

Country of ref document: AT

Date of ref document: 19970515

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: PATENTANWAELTE GEORG ROEMPLER UND ALDO ROEMPLER

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59402426

Country of ref document: DE

Date of ref document: 19970522

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19970624

ET Fr: translation filed
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

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20040704

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040707

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040714

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20040813

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20040929

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040930

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050715

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050715

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050731

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060201

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050715

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060331

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060331

BERE Be: lapsed

Owner name: *KELLER GRUNDBAU G.M.B.H.

Effective date: 20050731