EP0653518B1 - Verfahren zur Herstellung von dünnen Wänden im Boden - Google Patents

Verfahren zur Herstellung von dünnen Wänden im Boden Download PDF

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Publication number
EP0653518B1
EP0653518B1 EP94402546A EP94402546A EP0653518B1 EP 0653518 B1 EP0653518 B1 EP 0653518B1 EP 94402546 A EP94402546 A EP 94402546A EP 94402546 A EP94402546 A EP 94402546A EP 0653518 B1 EP0653518 B1 EP 0653518B1
Authority
EP
European Patent Office
Prior art keywords
wall
sheet pile
high pressure
grout
during
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.)
Expired - Lifetime
Application number
EP94402546A
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English (en)
French (fr)
Other versions
EP0653518A1 (de
Inventor
Dieter Volk
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.)
Compagnie du Sol SARL
Original Assignee
Compagnie du Sol SARL
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Filing date
Publication date
Application filed by Compagnie du Sol SARL filed Critical Compagnie du Sol SARL
Publication of EP0653518A1 publication Critical patent/EP0653518A1/de
Application granted granted Critical
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Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E02D7/24—Placing by using fluid jets
    • 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
    • E02D5/18—Bulkheads or similar walls made solely of concrete in situ

Definitions

  • the subject of the present invention is a new process perfected for the realization of thin walls in the ground.
  • Such walls can have for example ten of centimeters thick and a height of about twenty meters.
  • EP-A-0 513 461 European Patent No. 91402175.3
  • EP-A-0 513 461 European Patent No. 91402175.3
  • a vibration is pressed into the ground beam or sheet pile which has at its lower part a device to inject a grout at low pressure which, after solidification, constitutes the thin wall while we send horizontally at the bottom of the beam at least one jet of liquid at very high pressure directed substantially in the plane of the wall to achieve.
  • very high pressure liquid is meant according to the present description a liquid sent at pressures understood by example between 200 and 600 kg per square centimeter.
  • the present invention relates to improvements to the process described above which allow to significantly improve the quality of the sealed wall obtained and to increase its speed of execution.
  • the subject of the present invention is a method for to make watertight walls in the ground, of the type in which we sink vertically by vibration and we go up a sheet pile in the ground the along the route of the wall to be made, by injecting at low pressure, at the base of the sheet pile, a conventional grout which, after injection, the thin wall, a jet of liquid at very high pressure substantially in the plane of the wall and towards the part of the wall to be made, and a jet of liquid at very high pressure towards the part of the wall that has already been made, characterized in that the very high pressure liquid that is sent to the bottom of the sheet pile during its descent and during its ascent consists of a fluid grout based on water, bentonite, additives and cement, while injecting at the base of the sheet pile, above injection of liquid at very high pressure, during its descent and ascent, a thick conventional grout based on water, bentonite, cement, additives and an aggregate which communicates its consistency to it, by the fact that the very high pressure jet directed towards the part of the wall already
  • sheet pile is meant according to the present description a rigid metal profile, generally made of steel, which is pressed into the ground successively along the route of the wall that you want achieve.
  • adjuvant is meant, according to the present description, liquid or powdery products including low dose incorporation in a grout causes changes in certain properties of grout, fresh or hardened.
  • the adjuvants can also be constituted by any other product intended to adapt the rheology of the grout to the conditions encountered on site (for example anti-freeze products).
  • the grout injected at low pressure at the bottom of the sheet pile during the threshing and during the ascent of the latter is of a consistency relatively large so as to be able to provide resistance, flexibility, impermeability and resistance to erosion of the wall.
  • the grout which is injected at very high pressure in the wall already formed during the rise of the sheet pile is a very fluid grout made only from water, cement, bentonite and adjuvants, so that one could legitimately ask if the injection at very high pressure of such a grout would not lose to the wall already realized its essential characteristics of resistance, flexibility, impermeability and resistance to erosion.
  • the axis of the nozzles arranged at the bottom of the sheet pile which send the fluid grout under very high pressure is tilted slightly downwards, preferably 8 20% from the horizontal.
  • the nozzles which do not send grout at very high pressure during the different phases of the process, however, allow a low flow of grout to flow at low pressure to avoid blockage.
  • the sheet pile 1 is intended to be inserted into the floor to make the thin wall 2.
  • a vibratory hammer or vibrobatter 3 activated for example by a powerful hydraulic motor which vibrates the sheet pile 1 so that it sinks into the ground.
  • the vibratory hammer 3 is supported by the mast 4 of a machine lifting 5 schematically shown.
  • Sheet pile 1 is guided in its descent by a device attached to the lifting device 5 which, for simplicity of the drawing, has not been shown.
  • FIG. 1 represents the threshing or jacking of sheet pile 1, as shown in arrow F.
  • a conventional grout thick for thin wall is sent under low pressure by a nozzle 6 located below the sheet pile while a fluid grout 7 is sprayed at very high pressure below the sheet pile in downstream direction, i.e. to the right in the drawing, direction of the ground in which the wall is to be made.
  • FIG. 2 shows an embodiment particular of the lower part of the sheet pile 1 which presents a central core 8 and two wings 9.
  • the central core 8 has a thickness reinforcement 8 has in its lower part. It is the same wings 9 which present building extra thicknesses 9a.
  • the wing 9 on the left and its reinforcement 9 a extend downwards substantially beyond the central core 8.
  • a fin 10 is attached to the outside of the left wing of the sheet pile 1, in the extension of the core 8, so as to be move into part 2 of the thin wall that has already been made and to stabilize the path of the sheet pile during its descent.
  • the sheet pile 1 is guided so as to be preferably situated at the limit between the part of the wall 2 which has already been carried out and the land to be sealed which is to the right of the drawing.
  • a thick slurry of the type usually used to make the sealing walls, base of water, bentonite, cement and aggregate is injected by the double nozzle 6 at a pressure of a few tens of kilograms per square centimeter.
  • This thick grout injection is essentially intended to facilitate penetration into the soil of the sheet pile under the effect of the vibrations communicated to it.
  • a fluid cement-based grout, bentonite, additives and water is injected at very high pressure, for example at 600 kg per square centimeter, through nozzle 12 towards the right, towards the ground in which the wall must be carried out.
  • the axis of the nozzle is inclined about 15% downward with respect to the horizontal.
  • fluid grout is also sent to the nozzle 13 which is directed towards the wall 2 already done, but only at a pressure of a few kilograms per square centimeter and only to avoid plugging the line 15 and nozzle 13.
  • the fluid grout which is sent under very high pressure by the nozzle 12, has the effect of disintegrating and to permeate the ground below the sheet pile, which facilitates and strongly accelerates the descent of the latter by realizing the excavation in which the wall will be made.
  • the mode of implementation of the invention which comes to be described allows to realize in the ground, at a speed important, a wall of excellent quality with good continuity and good sealing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Treating Waste Gases (AREA)
  • Secondary Cells (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Claims (2)

  1. Verfahren zum Herstellen dichter Wandungen im Erdreich, indem durch Erschütterungen ein Spundwandprofil vertikal entlang der auszuführenden Wandung in den Boden getrieben und wieder hinausgezogen wird, wobei man am unteren Ende des Spundwandprofils mit Niederdruck eine konventionelle Masse injiziert, die nach dem Injizieren die dünne Wand bildet, einen Flüssigkeitsstrahl mit sehr hohem Druck im wesentlichen in der Ebene der Wandung und in Richtung des herzustellenden Teils der Wandung injiziert, und einen Flüssigkeitsstrahl mit sehr hohem Druck in Richtung des Teils (2) der bereits hergestellten Wandung injiziert, dadurch gekennzeichnet, daß die am unteren Teil des Spundwandprofils beim Absenken und Hochziehen injizierte Hochdruck-Flüssigkeit aus einem flüssigen Einpreßgut auf der Basis von Wasser, Bentonit, Zusätzen und Zement besteht, während man am unteren Bereich (6) des Spundwandprofils bei dessen Absenken und Hochziehen ein konventionelles Einpreßgut auf der Basis von Wasser, Bentonit, Zement und Zusätzen sowie mit einem Zuschlagstoff, der der Wandung ihre Konsistenz gibt, oberhalb der Injektion der Hochdruck-Flüssigkeit einpreßt, weiterhin dadurch gekennzeichnet, daß der Strahl mit sehr hohem Druck der in Richtung der bereits ausgeführten Wandung gerichtet wird, nur beim Hochziehen des Spundwandprofils zugeführt wird, und daß der Strahl des flüssigen Einpreßgutes, der beim Absenken des Spundwandprofils mit Hochdruck eingespritzt wird, leicht nach unten gerichtet ist.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Strahl des flüssigen Einpreßgutes in einer Schräge von 8 bis 20 % nach unten gerichtet ist.
EP94402546A 1993-11-12 1994-11-10 Verfahren zur Herstellung von dünnen Wänden im Boden Expired - Lifetime EP0653518B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9313509A FR2712317B1 (fr) 1993-11-12 1993-11-12 Procédé de réalisation de parois minces dans le sol.
FR9313509 1993-11-12

Publications (2)

Publication Number Publication Date
EP0653518A1 EP0653518A1 (de) 1995-05-17
EP0653518B1 true EP0653518B1 (de) 1999-06-16

Family

ID=9452787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94402546A Expired - Lifetime EP0653518B1 (de) 1993-11-12 1994-11-10 Verfahren zur Herstellung von dünnen Wänden im Boden

Country Status (9)

Country Link
EP (1) EP0653518B1 (de)
AT (1) ATE181385T1 (de)
CZ (1) CZ284967B6 (de)
DE (2) DE69419110T2 (de)
DK (1) DK0653518T3 (de)
ES (1) ES2075825T3 (de)
FR (1) FR2712317B1 (de)
HU (1) HU217308B (de)
SK (1) SK283910B6 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1004237C2 (nl) * 1996-10-10 1998-04-14 Tijmen Van Halteren Profiel, meer in het bijzonder damwandprofiel.
DE10222304B4 (de) * 2002-05-18 2008-07-17 Harald Gollwitzer Gmbh Verfahren zum Erstellen einer Schmalwand in einem Boden oder Untergrund
DE10337127B4 (de) * 2003-04-16 2012-03-08 Harald Gollwitzer Gmbh Pfahl zum Einbringen in einen Untergrund oder Baugrund
DE10327470B3 (de) * 2003-06-18 2004-09-30 Bauer Spezialtiefbau Gmbh Vorrichtung zur Herstellung von Einzelschlitzen oder durchgehenden Wänden im Erdreich nach dem Mixed-in-Place-Verfahren
DE102006050307A1 (de) * 2006-10-23 2008-04-30 Lutz Stolze Verfahren und Vorrichtung zum Einbringen von Profilen in das Erdreich
CN102628270B (zh) * 2012-04-23 2014-07-09 山东电力工程咨询院有限公司 大直径变截面异形增阻钢管桩系统及其施工方法
CN105672316A (zh) * 2016-02-03 2016-06-15 上海市基础工程集团有限公司 钢桩下沉减阻装置及施工方法
WO2018234836A1 (en) 2017-06-19 2018-12-27 Barkasz Sandor Method for productive diaphragm wall construction without soil excavation, and diaphragm wall construction system
EP4296432A1 (de) * 2022-06-24 2023-12-27 Ørsted Wind Power A/S Fundament für eine struktur und verfahren zur installation davon

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2316383A1 (fr) * 1975-07-03 1977-01-28 Soletanche Procede et dispositif pour la realisation d'ecrans d'etancheite dans le sol par lancage
DE2844794A1 (de) * 1978-10-13 1980-04-24 Brechtel Johannes Vorrichtung zur herstellung einer schmalwand
FR2676479A1 (fr) * 1991-05-14 1992-11-20 Sol Cie Procede pour la realisation de parois minces dans le sol et dispositif pour sa mise en óoeuvre.

Also Published As

Publication number Publication date
DK0653518T3 (da) 2000-01-10
CZ277994A3 (en) 1995-06-14
SK283910B6 (sk) 2004-04-06
DE653518T1 (de) 1996-02-29
DE69419110D1 (de) 1999-07-22
CZ284967B6 (cs) 1999-04-14
HU217308B (hu) 1999-12-28
HU9403231D0 (en) 1995-02-28
ES2075825T3 (es) 1999-09-16
ATE181385T1 (de) 1999-07-15
EP0653518A1 (de) 1995-05-17
DE69419110T2 (de) 2000-03-09
FR2712317B1 (fr) 1995-12-29
HUT73030A (en) 1996-06-28
SK135494A3 (en) 1995-06-07
FR2712317A1 (fr) 1995-05-19
ES2075825T1 (es) 1995-10-16

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