EP0352172B1 - Verfahren zum Abdichten von Spundwänden - Google Patents

Verfahren zum Abdichten von Spundwänden Download PDF

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Publication number
EP0352172B1
EP0352172B1 EP89402003A EP89402003A EP0352172B1 EP 0352172 B1 EP0352172 B1 EP 0352172B1 EP 89402003 A EP89402003 A EP 89402003A EP 89402003 A EP89402003 A EP 89402003A EP 0352172 B1 EP0352172 B1 EP 0352172B1
Authority
EP
European Patent Office
Prior art keywords
water
agent
aqueous
fluid system
gel
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
EP89402003A
Other languages
English (en)
French (fr)
Other versions
EP0352172A3 (de
EP0352172A2 (de
Inventor
Robert Maurer
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.)
Rhodia Chimie SAS
Original Assignee
Rhone Poulenc Chimie SA
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 Rhone Poulenc Chimie SA filed Critical Rhone Poulenc Chimie SA
Priority to AT89402003T priority Critical patent/ATE83520T1/de
Publication of EP0352172A2 publication Critical patent/EP0352172A2/de
Publication of EP0352172A3 publication Critical patent/EP0352172A3/de
Application granted granted Critical
Publication of EP0352172B1 publication Critical patent/EP0352172B1/de
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
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E02D5/14—Sealing joints between adjacent sheet piles

Definitions

  • the subject of the present invention is a method for making sheet pile curtains tight to liquids or pollutants contained in solids.
  • This type of structure is particularly used to separate a liquid medium from a solid medium, for example for the defense of the banks of canals and rivers, as a screen for the protection of flood zones ..., or to separate two solid media , for example to separate a healthy soil from a soil contaminated by metals or various chemicals (metal salts, solvents, hydrocarbons ).
  • the empty space existing between the two locked complementary loops is more or less closed; Also, the sealing of such a structure is not always sufficient, in particular in the event of accidental pollution of the water table, in particular when the latter is located at a shallow depth.
  • the Applicant has found a particularly simple method for sealing the sheet pile locking systems.
  • setting time is meant the time interval between the moment when the various constituents of the fluid system are mixed and the moment when the product obtained no longer flows. This setting time is easily adjustable depending on the temperature by varying the various system parameters.
  • fluid system means a system whose viscosity is less than 15 Pa.s, preferably less than 1 Pa.s.
  • a viscosity close to that of water is sought when the area to be sealed contains terrain elements of fineness less than or equal to that of sand or when the speed of circulation of the medium in the area to be sealed is low.
  • the circulation of the medium in the zone to be sealed is important, it is preferable to use a more viscous system in order to avoid its too strong dilution by the medium.
  • harden means to pass from the fluid state to a more or less elastic cohesive solid state.
  • the fluid substance and the "hardening agent" are preferably not brought into contact with each other until they are introduced into the empty space. However, they can be mixed in advance when the setting time of the grout obtained is high or when the rate of introduction of this grout is very fast.
  • the process according to the invention is particularly advantageous to make the sheet piling waterproof to liquids, whether the latter are aqueous (fresh water, salt water, brackish water, variously polluted water %), hydrocarbon (petroleum products, petroleum derivatives ).
  • a particularly important application consists in sealing the sheet pile walls vis-à-vis aqueous media.
  • the fluid system used can be aqueous or non-aqueous.
  • the level of crosslinking monomer can represent up to 5% of the weight of the monoethylenically unsaturated monomer soluble or dispersible in water.
  • the polymerization and / or crosslinking initiator entering the fluid system is generally a free radical generating compound soluble in water or miscible with it such as potassium or ammonium persulfate, hydrogen peroxide , acetyl peroxide, propionyl, phenylacetyl, benzoyl, t-butyl, benzyl, cumyl peroxide ...
  • a free radical generating compound such as potassium or ammonium persulfate, hydrogen peroxide , acetyl peroxide, propionyl, phenylacetyl, benzoyl, t-butyl, benzyl, cumyl peroxide ...
  • the amount of initiator generally represents 0.1 to 5% of the weight of the monoethylenically unsaturated monomer (s) soluble (s) or dispersible (s) in water.
  • a reducing accelerator in a similar amount, such as sodium pyrosulfite, sodium metabisulfite, tertiary amines such as dimethylaminoptopionitrile, dimethylaminoacetonitrile, triethanolamine, dimethylethanolamine, tetramethylethylenediamine.
  • a reducing accelerator such as sodium pyrosulfite, sodium metabisulfite, tertiary amines such as dimethylaminoptopionitrile, dimethylaminoacetonitrile, triethanolamine, dimethylethanolamine, tetramethylethylenediamine.
  • the rate of accelerator allows to play on the setting time.
  • polymers soluble or dispersible in water By way of example of polymers soluble or dispersible in water, mention may be made of natural or synthetic products such as polyacrylamide, partially hydrolyzed polyacrylamides, polyacrylonitrile, carboxymethylcellulose, polyvinylpyrolidone, polyvinyl alcohol, polysaccharides, l polyacrylic acid and its derivatives, polyethylene glycol, polyethylene oxides and / or propylene, alginates, carragenates, gums (agar, arabic %), pectins, starch, alkyls and hydroxyalkyl celluloses .
  • natural or synthetic products such as polyacrylamide, partially hydrolyzed polyacrylamides, polyacrylonitrile, carboxymethylcellulose, polyvinylpyrolidone, polyvinyl alcohol, polysaccharides, l polyacrylic acid and its derivatives, polyethylene glycol, polyethylene oxides and / or propylene, alginates, carragenates, gums (agar, arabic
  • the amount of curing agent used is chosen according to the desired setting time of said system.
  • Water blowing agents can be used if the gel or the elastic resin formed by crosslinking or hardening of the ethylenically unsaturated substance or aminoplast does not swell or insufficiently in contact with water.
  • These agents are of the polyacrylamide, carboxymethylcellulose, polysaccharide, natural gum (guar %) type.
  • the swelling capacity of the fluid system after gelation or hardening is adjustable in various ways: concentration of active material, rate of crosslinker, rate of swelling agent, rate of fillers, etc.
  • a particularly suitable mode of introduction of the fluid system into the empty space existing between the locked complementary loops is the injection under pressure, after mixing, of the various constituents of the fluid system by means of an injection probe.
  • the process which is the subject of the invention can be used to seal any type of sheet pile curtain, whether these are formed from a core with a particular profile in ⁇ , in U, in S in z or other.
  • Fluid systems capable of forming an inflatable resin or gel are suitable for all locking systems.
  • the grout obtained having a setting time of the order of 15 minutes at 20 ° C can be introduced by injection using a single-circuit system into the volume to be sealed; he is particularly suitable for injection into a sealed volume containing an aqueous medium containing fine sand.
  • the two solutions are introduced by injection using a double circuit system into the volume to be sealed; the setting time of the final grout is around 15 minutes at 20 ° C.
  • This injection mode makes it possible to operate for a longer time, the mixing only taking place at the outlet of the injection pump.
  • the mixture of the two sets forms a grout whose setting time is 5 minutes at 20 ° C and which swells with water.
  • This very fluid grout can be set up by injection using a dual circuit system; it is particularly suitable for injection into a volume to be sealed containing an aqueous medium containing fine sand.
  • the grout obtained has a setting time of around 37 minutes at 20 ° C and swells with water; it is particularly suitable for injection into a volume containing water with low circulation and containing small quantities of sand.
  • the grout obtained has a setting time of the order of 12 minutes at 20 ° C and swells with water; its application is similar to that of the grout of Example 5.
  • the mixture of sets D and E constitutes a viscous grout which swells with water, a grout whose setting time at 20 ° C. is 7 minutes.
  • this grout does not dilute in circulation water.
  • a grout is obtained whose setting time is between 11 and 15 minutes at 20 ° C and which, after a few days of storage forms a hard material capable of swelling in water; this material has a monoaxial compressive strength of 15 mega Pa.
  • Such a grout is particularly well suited for injection into a volume containing water or in a vacuum.
  • the mixture of the two sets forms a grout whose setting time is 8 minutes at 10 ° C; it is particularly suitable for injection into a volume containing water and coarse alluvium.
  • the mixture of the two sets forms a viscous and dense grout, the setting time of which is 15 minutes at 10 ° C; it is particularly suitable for injection into a volume containing water with high circulation.
  • the mixture of the two sets forms a grout whose setting time at 20 ° C is 6 minutes; the material obtained is capable of swelling in water and has good mechanical properties under compression; the grout is particularly suitable for injection into a volume containing water with high circulation.
  • the mixture of the two sets forms a grout capable of swelling with water, the setting time of which is 25 minutes at 20 ° C; it is particularly suitable for injection into a volume containing water and coarse alluvium.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Sealing Material Composition (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Basic Packing Technique (AREA)
  • Cell Separators (AREA)
  • Manufacturing Of Electric Cables (AREA)

Claims (5)

  1. Verfahren zum Abdichten von Spundwänden, indem man in den Hohlraum, der zwischen den im Eingriff befindlichen komplementären Verschlußprofilen der Wandteile vorhanden ist, ein flüssiges System einbringt, das bei der im Inneren des Hohlraums herrschenden Temperatur ein Gel zu bilden vermag, das das Volumen des Hohlraums ausfüllt, indem es im Kontakt mit einem in der zu dichtenden Zone vorhandenen wässerigen Milieu quillt, dadurch gekennzeichnet, daß das flüssige System eine Viskosität kleiner als 15 Pa.s aufweist und besteht aus:
    - einer in Wasser verdünnten äthylenisch ungesättigten Substanz, die durch Polymerisation und/oder Vernetzung ein festes Harz oder ein festes Gel zu bilden vermag,
    - einen Polymerisations- und/oder Vernetzungsinitiator,
    - und ein Mittel, das im wässerigen Milieu quillt, wenn das gebildete Gel oder Harz seinerseits nicht oder nicht ausreichend bei Kontakt mit dem in der zu dichtenden Zone vorhandenen wässerigen Milieu quillt,
    wobei die Abbindezeit des Systems weniger als etwa 1 Stunde ist.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das flüssige System ein wässeriges System ist, bestehend aus:
    - einem in Wasser lösbaren oder dispergierbaren Polymer, das durch Vernetzung ein Harz oder ein elastisches Gel zu bilden vermag,
    - einem Vernetzungsmittel für das Polymer,
    - und erforderlichenfalls einem in Wasser quellenden Mittel.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das flüssige System ein wässeriges System ist, bestehend aus:
    - einem Aminoplastharz,
    - einem Härter des sauren Typs,
    - und erforderlichenfalls einem in Wasser quellenden Mittel.
  4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das flüssige System nach Mischen seiner verschiedenen Bestandteile unter Druck in den Hohlraum, der zwischen den im Eingriff befindlichen komplementären Verschlußprofilen vorhanden ist, eingespritzt wird.
  5. Verwendung eines Verfahrens nach einem der Ansprüche 1 bis 4 zur Abdichtung von Spundwänden gegenüber wässerigen Milieus.
EP89402003A 1988-07-22 1989-07-12 Verfahren zum Abdichten von Spundwänden Expired - Lifetime EP0352172B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89402003T ATE83520T1 (de) 1988-07-22 1989-07-12 Verfahren zum abdichten von spundwaenden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8809921 1988-07-22
FR8809921A FR2634505B1 (fr) 1988-07-22 1988-07-22 Procede pour rendre etanches des rideaux de palplanches

Publications (3)

Publication Number Publication Date
EP0352172A2 EP0352172A2 (de) 1990-01-24
EP0352172A3 EP0352172A3 (de) 1991-01-16
EP0352172B1 true EP0352172B1 (de) 1992-12-16

Family

ID=9368678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89402003A Expired - Lifetime EP0352172B1 (de) 1988-07-22 1989-07-12 Verfahren zum Abdichten von Spundwänden

Country Status (3)

Country Link
EP (1) EP0352172B1 (de)
AT (1) ATE83520T1 (de)
FR (1) FR2634505B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU88827A1 (fr) * 1996-10-16 1998-04-16 Profil Arbed S A Joint d'étanchéité pour palplanches

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1458945A (fr) * 1965-01-26 1966-11-18 Progil Compositions pour la consolidation des sols
FR2032112A5 (de) * 1969-02-19 1970-11-20 Wendel Sidelor
DE2140250A1 (de) * 1971-08-11 1973-02-22 Weill & Reineke Gmbh Verfahren und vorrichtung zum abdichten der wasserbeaufschlagten fugen zwischen wandbildenden elementen, insbesondere der schlossfugen von spundwaenden
US3919173A (en) * 1973-11-23 1975-11-11 Contech Inc Moisture curable polyurethane systems
US4061605A (en) * 1976-03-03 1977-12-06 Eli Simon Reaction products of benzenephosphonic acid and melamine as flame-retardant additives
FR2375288A1 (fr) * 1976-12-27 1978-07-21 Rhone Poulenc Ind Compositions pour la consolidation de massifs miniers
JPS58189417A (ja) * 1982-04-27 1983-11-05 Kajima Corp 土留の継手部止水法
JPS6131519A (ja) * 1984-07-23 1986-02-14 Sumitomo Chem Co Ltd 鋼管矢板継ぎ手工法

Also Published As

Publication number Publication date
ATE83520T1 (de) 1993-01-15
FR2634505A1 (fr) 1990-01-26
FR2634505B1 (fr) 1992-04-24
EP0352172A3 (de) 1991-01-16
EP0352172A2 (de) 1990-01-24

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