EP0932728B1 - Sealing joint for sheet piles - Google Patents

Sealing joint for sheet piles Download PDF

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Publication number
EP0932728B1
EP0932728B1 EP97943893A EP97943893A EP0932728B1 EP 0932728 B1 EP0932728 B1 EP 0932728B1 EP 97943893 A EP97943893 A EP 97943893A EP 97943893 A EP97943893 A EP 97943893A EP 0932728 B1 EP0932728 B1 EP 0932728B1
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EP
European Patent Office
Prior art keywords
product
paraffinic
products
sheet piles
sealing
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EP97943893A
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German (de)
French (fr)
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EP0932728A1 (en
Inventor
Jean-Michel Moulin
André RIX
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ArcelorMittal Belval and Differdange SA
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Profilarbed SA
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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/935—Seal made of a particular material

Definitions

  • the present invention relates to a seal for sheet piles.
  • Sheet piles are metal sections with more or less geometries less complex (for example Z, U, flat sheet piles or box assemblies), which are assembled to form walls continuous called curtains. Sheet pile assemblies are used more especially during excavation work, construction of dams, ponds water retention, containment of contaminated land etc., to retain the soil and to some extent also water.
  • the purpose of the present invention is to provide a product for rendering waterproof sheet pile locks, which is both safe from the point of view environment and which withstands stress well during interlocking.
  • This goal is achieved by the use of a paraffinic product to make waterproof sheet pile joints.
  • paraffinic product is advantageous because this product is inert and does not release harmful components into the environment.
  • paraffinic products in the manufacture of seals sealing for sheet pile locks offers several advantages by compared to the use of bitumen-based products.
  • Paraffinic products have a higher lubricity than bituminous products, i.e. that sheet piles including a joint in products paraffinics are generally easier to engage: the force required to pair two sealed sheet piles with paraffinic product is less than that which is necessary to combine sealed sheet piles with a product bituminous.
  • seals in paraffinic products are not degraded by oils mineral unlike seals in bituminous products.
  • the resistance of joints in petroleum and / or petroleum paraffinic products is clearly higher than that of joints in bituminous products.
  • paraffinic products The application temperature of paraffinic products is clearly lower than that of bitumen products. Indeed, it suffices to heat the products paraffinic at temperatures below 140 ° C while the products bituminous must be heated to about 200 ° C. At these temperatures, the bituminous products tend to give off unpleasant odors and a overheating can also produce harmful fumes.
  • bituminous product seals must be removed blowtorch, while the paraffin seals are completely removed simply by scraping and possibly using a solvent.
  • paraffinic products Another advantage of paraffinic products is that they remain homogeneous even at high temperatures. In the case of bitumen-based products, sometimes observes a local stiffening of the joints in bituminous products which is due to inhomogeneities. These stiffenings can lead to difficulties threading of sheet piles. In such cases, a slight heating must be practiced of the recalcitrant zone in order to facilitate the twinning of sheet piles.
  • seals made of paraffinic products can be colored in the mass by adding a dye or pigments colored with melted products.
  • the seal in paraffinic products can be applied in the factory or on the site before the sheet piles are engaged.
  • the paraffinic products usable for sealing sheet pile locks have a point drop between 100 and 140 ° C measured according to ISO 2176 with a Mettler FP5 / 53 device.
  • the paraffinic products have a cone penetration between 20 and 50 mm / 10 determined according to method ASTM D937 / 58 or equivalent eg NF T60-119.
  • the paraffinic products usable for sealing sheet pile locks have a resistance to hydrostatic pressure of at least 0.12 bar / mm, preferably at least 0.22 bar / mm.
  • a sample circular of known thickness is introduced into an oedometer and screwed into a metal sleeve. It is subjected to a hydrostatic pressure between 0 and 3.5 bar. The pressure is measured by a pressure gauge. The test stops at ruin mechanical sample.
  • the paraffinic product comprises at least 50% paraffin waxes.
  • Paraffinic products usable for sealing locks sheet piles may also include mineral oils, agents adhesion, antioxidants and / or other usual additives.
  • the strength of the seals in the locks during the engagement of the sheet piling was examined on a conventional twinning line.
  • the purpose of tests was to study the adhesion and the lubricating effect of the products as well as the possible jamming problems.
  • the products were heated until they were liquid and were poured into the locks to form a joint with a thickness between 4 and 8 mm.
  • the following table summarizes the important characteristics relating to the application of the products, in particular the melting temperature, the viscosity of the molten product, the fumes emitted by the products during reheating and an assessment of the quality of the seal applied in the locks.
  • Behavior of hot products Product Melting temperature Viscosity fumes Appreciation Beltan 160-180 fairly fluid averages pretty good Soprema 160-180 fairly fluid averages pretty good Biguma 180-220 quite pasty important pretty bad paraffin 120-160 fluid missing good

Abstract

A method of sealing sheet pile joints using a paraffinic product to seal the gripping elements of the sheet piles. The paraffinic products usable for sealing the gripping elements of sheet piles have a drop point lying between 100 and 140° C. and a cone penetration of between 20 and 50 mm/10. In a preferred embodiment, the paraffinic product contains at least 50% paraffin waxes, and may also incorporate mineral oils, bonding agents, antioxidants and/or other normal additives. According to another embodiment, the paraffinic products usable for sealing the gripping elements of sheet piles have a resistance to hydrostatic pressure of at least 0.12 bar/mm, preferably at least 0.22 bar/mm.

Description

La présente invention concerne un joint d'étanchéité pour palplanches.The present invention relates to a seal for sheet piles.

Les palplanches sont des profilés métalliques ayant des géométries plus ou moins complexes (par exemple palplanches en Z, en U, plates ou des assemblages en caisson), qui sont assemblés pour constituer des parois continues appelées rideaux. Des assemblages de palplanches sont utilisés plus spécialement lors de travaux de fouilles, de construction de barrages, de bassins de retenue d'eau, de confinement de terrains pollués etc., pour retenir le sol et dans une certaine mesure également l'eau.Sheet piles are metal sections with more or less geometries less complex (for example Z, U, flat sheet piles or box assemblies), which are assembled to form walls continuous called curtains. Sheet pile assemblies are used more especially during excavation work, construction of dams, ponds water retention, containment of contaminated land etc., to retain the soil and to some extent also water.

Sur les chantiers, les palplanches, qui sont souvent assemblées deux à deux (jumelage) en usine par des machines appelées enfileuses, sont enfoncées dans le sol par battage, par vibration, ou par des presses pour former une paroi métallique du fait de l'enclenchement mutuel de leurs serrures ou griffes. Un certain jeu au niveau des serrures doit permettre un enclenchement aisé des palplanches lors de leur assemblage, ce qui constitue naturellement une source de fuite.On building sites, sheet piles, which are often assembled in pairs (twinning) in the factory by machines called threaders, are driven into the soil by threshing, by vibration, or by presses to form a wall metallic due to the mutual engagement of their locks or claws. A some play on the locks must allow easy engagement of the sheet piles during their assembly, which naturally constitutes a source leak.

A partir du moment où l'on requiert pour le rideau de palplanches une étanchéité, qu'elle soit complète ou qu'elle soit la plus efficace possible, il faut prévoir des mesures supplémentaires d'étanchéité pour les serrures.From the moment when a sheet pile curtain is required tightness, whether complete or as efficient as possible, provide additional sealing measures for locks.

On a essayé de rendre les rideaux de palplanches étanches, consécutivement à leur battage, soit en soudant les palplanches les unes aux autres, soit en injectant sous pression une masse d'étanchéité dans les interstices des serrures, comme décrit dans la demande de brevet allemand publiée sous le No. DE-OS-21 40 250.We tried to make the sheet pile curtains waterproof, following their threshing, either by welding the sheet piles together others, either by injecting a sealant under pressure into the interstices locks, as described in the German patent application published under the No. DE-OS-21 40 250.

Ces deux procédés ne sont toutefois applicables que si l'une des deux faces du rideau de palplanches reste accessible.These two methods are only applicable if one of the two sides the sheet pile curtain remains accessible.

Si le rideau de palplanches n'est pas accessible, on peut procéder comme décrit dans la demande de brevet allemand publiée sous le No. DE-OS-21 42 957 et injecter dans une serrure des palplanches, à même le chantier, avant le battage une masse qui est appliquée à l'état liquide et qui se solidifie sous forme de mousse à consistance élastique.If the sheet pile curtain is not accessible, you can proceed as described in the German patent application published under No. DE-OS-21 42 957 and inject into a sheet pile, on the site, before threshing a mass which is applied in the liquid state and which solidifies in the form of foam with elastic consistency.

Alternativement on peut se conformer à la demande de brevet allemande DE-AS 27 22 978 selon laquelle on constitue un joint dans la serrure à enfiler, en y injectant un produit approprié, généralement du polyuréthane, et en égalisant ce produit au moyen d'un dispositif mobile pour lui conférer la forme désirée.Alternatively we can comply with the German patent application DE-AS 27 22 978 according to which a seal is formed in the sliding lock, in injecting a suitable product into it, generally polyurethane, and equalizing this produced by means of a mobile device to give it the desired shape.

Les joints d'étanchéité mentionnés ci-dessus ont le désavantage de ne présenter que peu de résistance aux sollicitations lors de l'enclenchement et notamment au cisaillement. Lors de l'enfoncement des palplanches les serrures frottent l'une contre l'autre et le joint d'étanchéité peut être détruit, localement du moins, par rabotage du joint.The seals mentioned above have the disadvantage of not have little resistance to stresses during engagement and especially in shear. When the sheet piles are driven in, the locks rub against each other and the seal can be destroyed locally from less, by planing the joint.

La mise en oeuvre de ces joints à base de polyuréthane nécessite en général une préparation poussée de la serrure. En effet, il est souvent nécessaire de nettoyer la serrure par sablage et d'appliquer un produit améliorant l'adhérence du joint sur l'acier. Malgré toutes ces précautions, des palplanches comprenant ce type de joints ne peuvent pas être enfoncées par vibration car les joints seraient trop fortement endommagés lors de l'enfoncement.The implementation of these polyurethane-based seals requires general a thorough preparation of the lock. Indeed, it is often necessary to clean the lock by sandblasting and to apply a product improving adhesion of the joint on the steel. Despite all these precautions, sheet piles including this type of joints cannot be driven in by vibration because the joints would be too badly damaged during insertion.

Le but de la présente invention est de proposer un produit pour rendre étanches les serrures de palplanches, qui soit à la fois sûr au point de vue environnement et qui résiste bien aux sollicitations lors de l'enclenchement.The purpose of the present invention is to provide a product for rendering waterproof sheet pile locks, which is both safe from the point of view environment and which withstands stress well during interlocking.

Ce but est atteint par l'utilisation d'un produit paraffinique pour rendre étanches des joints de palplanches.This goal is achieved by the use of a paraffinic product to make waterproof sheet pile joints.

L'utilisation suivant l'invention d'un produit paraffinique est avantageuse car ce produit est inerte et ne rejette pas de composants nocifs dans l'environnement.The use according to the invention of a paraffinic product is advantageous because this product is inert and does not release harmful components into the environment.

Vu sa consistance et sa bonne déformabilité plastique, le joint en produit paraffinique n'est pas susceptible d'être détruit lors de l'enclenchement des palplanches. Il résiste mieux au cisaillement et aux autres sollicitations lors de l'enclenchement que les joints en polyuréthane.Given its consistency and good plastic deformability, the joint produces paraffinic is not likely to be destroyed when the piles. It is more resistant to shearing and other stresses during interlocking as polyurethane seals.

L'étanchement des serrures de palplanches à l'aide de produits paraffiniques est plus simple qu'avec du polyuréthane car il n'est pas nécessaire de sabler la serrure ni d'introduire un produit améliorant l'adhérence entre l'acier et le joint. Sealing of sheet pile locks with paraffinic products is simpler than with polyurethane because it is not necessary to sand the lock or introduce a product improving the adhesion between the steel and the joint.

De plus, les joints en produits paraffiniques sont beaucoup moins chers que les joints en polyuréthane.In addition, the seals in paraffinic products are much cheaper than polyurethane seals.

Pour étancher les serrures de palplanches, on utilise depuis très longtemps des masses de colmatage à base de bitume. Ces produits présentent en général une résistance acceptable au cisaillement. Cependant, un des désavantages de ces produits d'étanchéité est que lorsqu'ils sont utilisés en contact avec des nappes phréatiques, certains composants nocifs peuvent être libérés dans l'environnement.To seal the sheet pile locks, we have used for a very long time bitumen-based sealing compounds. These products generally acceptable shear strength. However, one of the disadvantages of these sealants is that when used in contact with groundwater, some harmful components can be released into the environment.

L'utilisation de produits paraffiniques dans la fabrication des joints d'étanchéité pour les serrures de palplanches offre plusieurs avantages par rapport à l'utilisation de produits à base de bitume.The use of paraffinic products in the manufacture of seals sealing for sheet pile locks offers several advantages by compared to the use of bitumen-based products.

La plasticité et la déformabilité à froid du produit paraffinique sont nettement supérieures à celles des produits à base de bitume. Ces propriétés ont été confirmées lors d'essais d'enclenchement des palplanches.The plasticity and the cold deformability of the paraffinic product are clearly higher than those of bitumen-based products. These properties have been confirmed during interlocking tests for sheet piles.

Les produits paraffiniques présentent un pouvoir lubrifiant supérieur aux produits bitumineux, c.-à-d. que les palplanches comprenant un joint en produits paraffiniques s'enclenchent en général plus facilement : la force nécessaire pour jumeler deux palplanches étanchées avec un produit paraffinique est inférieure à celle qui est nécessaire pour jumeler des palplanches étanchées avec un produit bitumineux.Paraffinic products have a higher lubricity than bituminous products, i.e. that sheet piles including a joint in products paraffinics are generally easier to engage: the force required to pair two sealed sheet piles with paraffinic product is less than that which is necessary to combine sealed sheet piles with a product bituminous.

Les joints en produits paraffiniques ne sont pas dégradés par des huiles minérales contrairement aux joints en produits bitumineux. La résistance des joints en produits paraffiniques au pétrole et/ou à l'essence est nettement supérieure à celle des joints en produits bitumineux.The seals in paraffinic products are not degraded by oils mineral unlike seals in bituminous products. The resistance of joints in petroleum and / or petroleum paraffinic products is clearly higher than that of joints in bituminous products.

La température d'application des produits paraffiniques est nettement inférieure à celle des produits en bitume. En effet, il suffit de chauffer les produits paraffiniques à des températures inférieures à 140°C tandis que les produits bitumineux doivent être chauffés à environ 200°C. A ces températures, les produits bitumineux ont tendance à dégager des odeurs désagréables et une surchauffe peut en outre produire des fumées nocives. The application temperature of paraffinic products is clearly lower than that of bitumen products. Indeed, it suffices to heat the products paraffinic at temperatures below 140 ° C while the products bituminous must be heated to about 200 ° C. At these temperatures, the bituminous products tend to give off unpleasant odors and a overheating can also produce harmful fumes.

Pendant l'enclenchement des serrures, une certaine quantité de produit d'étanchéité est éjectée de la serrure et doit être enlevée manuellement. Les produits paraffiniques s'enlèvent par raclage avec un outil, et la finition de la surface se fait aisément à l'aide d'un solvant à base d'hydrocarbures aliphatiques tel que le produit "Premium Degreaser" de la firme Texaco. La quantité de produits paraffiniques éjectée est moindre et ils se répartissent de façon plus homogène dans la serrure. L'aspect esthétique d'un rideau de palplanches comprenant des joints en produits paraffiniques est par conséquent nettement meilleur que celui d'un rideau de palplanches comprenant des joints en produits bitumineux.When the locks are engaged, a certain amount of product seal is ejected from the lock and must be removed manually. The paraffinic products are removed by scraping with a tool, and the finish of the surface is easily done using a solvent based on aliphatic hydrocarbons such as the "Premium Degreaser" product from the firm Texaco. The quantity of paraffinic products ejected is less and they spread out more homogeneous in the lock. The aesthetic appearance of a sheet pile curtain comprising seals made of paraffinic products is therefore clearly better than that of a sheet pile curtain with product joints bituminous.

En cas de réutilisation des palplanches, les serrures doivent en général être nettoyées complètement.When reusing sheet piles, the locks should generally be cleaned completely.

Dans un tel cas, les joints en produit bitumineux doivent être enlevés au chalumeau, tandis que les joints en produits paraffiniques s'enlèvent tout simplement par raclage et éventuellement à l'aide un solvant.In such a case, the bituminous product seals must be removed blowtorch, while the paraffin seals are completely removed simply by scraping and possibly using a solvent.

Un autre avantage des produits paraffiniques est qu'ils restent homogènes même à haute température. Dans le cas des produits à base de bitumes, on observe parfois un raidissement local des joints en produits bitumineux qui est dû à des inhomogénéités. Ces raidissements peuvent conduire à des difficultés d'enfilage des palplanches. Dans de tels cas, il faut pratiquer un léger chauffage de la zone récalcitrante afin de faciliter le jumelage des palplanches.Another advantage of paraffinic products is that they remain homogeneous even at high temperatures. In the case of bitumen-based products, sometimes observes a local stiffening of the joints in bituminous products which is due to inhomogeneities. These stiffenings can lead to difficulties threading of sheet piles. In such cases, a slight heating must be practiced of the recalcitrant zone in order to facilitate the twinning of sheet piles.

Un autre avantage réside dans le fait que les joints en produits paraffiniques peuvent être colorés dans la masse en ajoutant un colorant ou bien des pigments colorés aux produits fondus.Another advantage is that the seals made of paraffinic products can be colored in the mass by adding a dye or pigments colored with melted products.

Le joint en produits paraffiniques peut être appliqué en usine ou bien sur le chantier avant l'enclenchement des palplanches.The seal in paraffinic products can be applied in the factory or on the site before the sheet piles are engaged.

Selon un premier mode de réalisation avantageux, les produits paraffiniques utilisables pour rendre étanches des serrures de palplanches présentent un point de goutte compris entre 100 et 140°C mesuré selon la norme ISO 2176 avec un appareil Mettler FP5/53. According to a first advantageous embodiment, the paraffinic products usable for sealing sheet pile locks have a point drop between 100 and 140 ° C measured according to ISO 2176 with a Mettler FP5 / 53 device.

De préférence, les produits paraffiniques présentent une pénétration de cône comprise entre 20 et 50 mm/10 déterminée selon la méthode ASTM D937/58 ou équivalente p.ex. NF T60-119.Preferably, the paraffinic products have a cone penetration between 20 and 50 mm / 10 determined according to method ASTM D937 / 58 or equivalent eg NF T60-119.

Selon un autre mode de réalisation avantageux, les produits paraffiniques utilisables pour l'étanchement de serrures de palplanches présentent une résistance à la pression hydrostatique d'au moins 0,12 bar/mm, de préférence d'au moins 0,22 bar/mm.According to another advantageous embodiment, the paraffinic products usable for sealing sheet pile locks have a resistance to hydrostatic pressure of at least 0.12 bar / mm, preferably at least 0.22 bar / mm.

Pour déterminer la résistance à la pression hydrostatique, un échantillon circulaire d'épaisseur connue est introduit dans un oedomètre et vissé dans un manchon métallique. Il est soumis à une pression hydrostatique comprise entre 0 et 3,5 bar. La pression est mesurée par un manomètre. L'essai s'arrête à la ruine mécanique de l'échantillon.To determine the resistance to hydrostatic pressure, a sample circular of known thickness is introduced into an oedometer and screwed into a metal sleeve. It is subjected to a hydrostatic pressure between 0 and 3.5 bar. The pressure is measured by a pressure gauge. The test stops at ruin mechanical sample.

Dans une exécution préférée, le produit paraffinique comprend au moins 50% de cires de paraffines.In a preferred embodiment, the paraffinic product comprises at least 50% paraffin waxes.

Les produits paraffiniques utilisables pour l'étanchement de serrures de palplanches peuvent également comprendre des huiles minérales, des agents d'adhérence, des antioxydants et/ou d'autres additifs usuels.Paraffinic products usable for sealing locks sheet piles may also include mineral oils, agents adhesion, antioxidants and / or other usual additives.

D'autres caractéristiques de l'invention sont décrites, à titre non limitatif, dans les exemples.Other characteristics of the invention are described, without limitation, in the examples.

Différents produits ont été testés et les performances de ces produits ont été comparées. Produits testés Produit Composition Beltan bitume + graisse Soprema bitume élastoplastique Biguma bitume élastomère Paraf paraffine Different products have been tested and the performance of these products has been compared. Products tested Product Composition Beltan bitumen + grease Soprema elastoplastic bitumen Biguma elastomeric bitumen paraffin paraffin

Différents tests ont été effectués pour vérifier :

  • l'application des produits dans les serrures de palplanches
  • les performances physiques
  • le comportement vis-à-vis de différents produits chimiques
Les essais en relation avec l'application du produit sont destinés à évaluer les conditions d'application du joint et son comportement dans les serrures durant la période qui précède le battage. La température de fusion et la fluidité du produit ont été contrôlées. L'aptitude à l'application sur l'acier porté à des températures comprises entre -10 °C et 70°C, l'adhérence sur des surfaces sèches ou humides ainsi que la capacité du joint à supporter la pluie et les U.V. pendant le stockage sont contrôlées. Les résultats sont repris dans le tableau 2. Application des différents produits Produit T° de mise en oeuvre (°C) Viscosité du produit à l'application Aptitude suivant l'état de la surface de l'acier lors de l'application Comportement au stockage -10°C 25°C 70°C humide sous la pluie U.V.: Beltan 170 liquide OK OK OK OK OK OK Soprema 200 assez liquide OK OK OK OK OK OK Biguma 170 liquide OK OK OK OK OK OK Paraf 120 très liquide OK OK OK OK OK OK Various tests have been carried out to verify:
  • application of products in sheet pile locks
  • physical performance
  • behavior towards different chemicals
The tests in connection with the application of the product are intended to evaluate the conditions of application of the seal and its behavior in locks during the period before threshing. The melting temperature and the fluidity of the product were checked. The suitability for application on steel brought to temperatures between -10 ° C and 70 ° C, the adhesion on dry or wet surfaces as well as the ability of the joint to withstand rain and UV during storage are controlled. The results are shown in Table 2. Application of different products Product Processing temperature (° C) Viscosity of the product on application Suitability according to the surface condition of the steel during application Storage behavior -10 ° C 25 ° C 70 ° C wet under the rain UV: Beltan 170 liquid okay okay okay okay okay okay Soprema 200 pretty liquid okay okay okay okay okay okay Biguma 170 liquid okay okay okay okay okay okay paraffin 120 very liquid okay okay okay okay okay okay

Les performances physico-chimiques des joints ont également été testées. Ces tests physico-chimiques ont porté sur la résistance des joints à la pression d'eau, sur la consistance du produit en position verticale lorsqu'il est soumis à des températures allant jusqu'à 80°C, et sur la compatibilité avec divers agents chimiques. Tests physico-chimiques Produit Résistance à la pression (bar/mm) Consistance du produit solidifié Tenue en position verticale chauffée Résistance chimique T° max. avant la ruine pH 2 pH 12 eau de mer huile pétrole essence Beltan 0,08 mi-dur 70 B B B MO MA MA Soprema >0.22 dur, élastique 80 B B B MO MA MA Biguma 0,19 mi-dur, élastique 80 B B B MO MA MA Paraf 0,22 assez tendre 70 B B B B MO MO B= bon , MO = moyen, MA = mauvais The physico-chemical performances of the seals were also tested. These physico-chemical tests focused on the resistance of the joints to water pressure, on the consistency of the product in vertical position when it is subjected to temperatures up to 80 ° C, and on the compatibility with various agents. chemical. Physico-chemical tests Product Pressure resistance (bar / mm) Consistency of solidified product Held in a heated vertical position Chemical resistance T ° max. before ruin pH 2 pH 12 sea water oil oil gasoline Beltan 0.08 medium hard 70 B B B MO MY MY Soprema > 0.22 hard, elastic 80 B B B MO MY MY Biguma 0.19 medium-hard, elastic 80 B B B MO MY MY paraffin 0.22 pretty tender 70 B B B B MO MO B = good, MO = average, MA = bad

Afin de déterminer si les joints rejettent certains produits toxiques lorsqu'ils sont en contact avec de l'eau, des échantillons présentant une surface de contact identique ont été soumis pendant 48 heures au contact de l'eau selon la méthode DIN 38414-S4. Les concentrations en plomb (Pb), en produits aromatiques polycycliques (PAH) et la somme de cinq produits aromatiques volatils (BTEX) - le benzène, le toluène, l'éthylbenzène, le m-p-xylène et le o-xylène - selon la méthode DIN 38407 ont été déterminées. Les résultats sont repris dans le tableau 4. Rejets toxiques des joints de palplanches Produit Pb (µg/l) PAH (µg/l) BTEX (µg/l) Beltan <1 0,4 <0,1 Soprema <1 0,3 <0,1 Biguma <1 <0,1 <0,1 Paraf <1 <0,1 <=0,1 limites autorisées 40 0,2 30 In order to determine whether the seals reject certain toxic products when they come into contact with water, samples with an identical contact surface were subjected for 48 hours to water contact according to DIN 38414-S4 method. Lead (Pb), polycyclic aromatics (PAH) concentrations and the sum of five volatile aromatics (BTEX) - benzene, toluene, ethylbenzene, mp-xylene and o-xylene - according to the method DIN 38407 have been determined. The results are shown in Table 4. Toxic discharges from sheet pile joints Product Pb (µg / l) PAH (µg / l) BTEX (µg / l) Beltan <1 0.4 <0.1 Soprema <1 0.3 <0.1 Biguma <1 <0.1 <0.1 paraffin <1 <0.1 <= 0.1 authorized limits 40 0.2 30

Seulement deux des quatre produits réussissent le test.Only two of the four products pass the test.

Les limites autorisées sont celles imposées par la législation de l'état allemand de Bayern dans son ouvrage "Altlastenleitfaden für die Behandlung von Altablagerungen und kontaminierten Standorten in Bayern" publié par le Bayrisches Staatsministerium für die Landesentwicklung und Umweltfragen en 1992.Authorized limits are those imposed by state law Bayern German in his work "Altlastenleitfaden für die Behandlung von Altablagerungen und kontaminierten Standorten in Bayern "published by Bayrisches Staatsministerium für die Landesentwicklung und Umweltfragen en 1992.

La tenue des joints dans les serrures pendant l'enclenchement des palplanches a été examinée sur une ligne de jumelage classique. Le but des essais était d'étudier l'adhérence et l'effet lubrifiant des produits ainsi que les éventuels problèmes de bourrage.The strength of the seals in the locks during the engagement of the sheet piling was examined on a conventional twinning line. The purpose of tests was to study the adhesion and the lubricating effect of the products as well as the possible jamming problems.

Les essais ont été réalisés avec des palplanches AZ 18 de 6 m de longueur. Avant l'application des produits, une serrure de chaque palplanche a été préparée selon les recommandations décrites dans "Le rideau de palplanches étanche" publié par l'International Sheet Piling Company S.à r.l. (Luxembourg) en 1993. The tests were carried out with AZ 18 sheet piles 6 m long. Before applying the products, a lock for each sheet pile was prepared according to the recommendations described in "The waterproof sheet pile curtain" published by the International Sheet Piling Company S.à r.l. (Luxembourg) in 1993.

Pour ces essais une seule des deux serrures a été remplie de produit d'étanchéité.For these tests only one of the two locks was filled with product sealing.

Les produits ont été chauffés jusqu'à ce qu'ils soient liquides et ont été coulés dans les serrures pour former un joint d'une épaisseur comprise entre 4 et 8 mm. Le tableau suivant résume les caractéristiques importantes relatives à l'application des produits, notamment la température de fusion, la viscosité du produit fondu, les fumées émises par les produits lors du réchauffement et une appréciation de la qualité du joint appliqué dans les serrures. Comportement des produits à chaud Produit T° de fusion Viscosité Fumées Appréciation Beltan 160-180 assez fluide moyennes assez bonne Soprema 160-180 assez fluide moyennes assez bonne Biguma 180-220 assez pâteuse importantes assez mauvaise Paraf 120-160 fluide absentes bonne The products were heated until they were liquid and were poured into the locks to form a joint with a thickness between 4 and 8 mm. The following table summarizes the important characteristics relating to the application of the products, in particular the melting temperature, the viscosity of the molten product, the fumes emitted by the products during reheating and an assessment of the quality of the seal applied in the locks. Behavior of hot products Product Melting temperature Viscosity fumes Appreciation Beltan 160-180 fairly fluid averages pretty good Soprema 160-180 fairly fluid averages pretty good Biguma 180-220 quite pasty important pretty bad paraffin 120-160 fluid missing good

Les essais d'enclenchement ont été effectués sur une ligne de jumelage classique et se sont déroulés en deux temps:

  • les trois premiers mètres de chaque palplanche ont été enclenchés en marche manuelle, c.-à-d. à vitesse lente de façon à pouvoir apprécier l'adhérence du produit dans la serrure;
  • les trois derniers mètres ont été enclenchés en marche automatique à 0,8 m/s pour pouvoir mesurer la force nécessaire à l'assemblage et par conséquent évaluer le degré de lubrification de chaque produit.
Les résultats de ces essais sont résumés dans le tableau 6. Aspect des joints après enclenchement Produit état du joint remplissage pression appréciation Beltan cisaillé bon 120 bonne Biguma cisaillé bon 120 bonne Soprema déchirure bon >170 mauvaise Paraf raclé bon 120 bonne The interlocking tests were carried out on a conventional twinning line and took place in two stages:
  • the first three meters of each sheet pile have been engaged in manual operation, i.e. at slow speed so as to be able to appreciate the adhesion of the product in the lock;
  • the last three meters were engaged in automatic operation at 0.8 m / s to be able to measure the force required for assembly and therefore assess the degree of lubrication of each product.
The results of these tests are summarized in Table 6. Appearance of the joints after engagement Product seal condition filling pressure appreciation Beltan shear Well 120 good Biguma shear Well 120 good Soprema tear Well > 170 bad paraffin scraped Well 120 good

La façon dont le produit excédentaire est éjecté hors de la serrure dépend de la souplesse du produit. S'il est dur, il se déchire, s'il est tendre, il a plutôt tendance à être raclé. En général, on a observé que l'évacuation du produit excédentaire se fait essentiellement au devant de la palplanche qui s'enclenche. Elle rabote en quelque sorte le surplus de produit.How the excess product is ejected from the lock depends on flexibility of the product. If it is hard, it tears, if it is tender, it has rather tendency to be scraped. In general, it has been observed that the evacuation of the product excess is mainly done in front of the sheet pile which engages. It sort of planes the surplus product.

Les essais ont montré qu'il n'était pas possible d'enclencher les palplanches comprenant le produit "Soprema". Ce produit était apparemment trop dur et bloquait l'opération d'assemblage.Tests have shown that it is not possible to interlock sheet piles including the product "Soprema". This product was apparently too hard and blocked the assembly operation.

Claims (7)

  1. Use of a paraffinic product to seal sheet-pile joints.
  2. Use according to Claim 1, characterised in that the paraffinic product has a drop point lying between 100 and 140°C.
  3. Use according to either one of the preceding claims, characterised in that the paraffinic product has a cone penetration lying between 20 and 50 mm/10.
  4. Use according to any one of the preceding claims, characterised in that the paraffinic product has a resistance to hydrostatic pressure of at least 0.12 bar/mm, preferably at least 0.22 bar/mm.
  5. Use according to any one of the preceding claims, characterised in that the paraffinic product includes at least 50% paraffin waxes.
  6. Use according to any one of the preceding claims, characterised in that the paraffinic product includes paraffin oils, mineral oils, bonding agents, antioxidants and/or other normal additives.
  7. Use according to any one of the preceding claims, characterised in that the paraffinic product also includes dyes or coloured pigments.
EP97943893A 1996-10-16 1997-09-24 Sealing joint for sheet piles Expired - Lifetime EP0932728B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
LU88827 1996-10-16
LU88827A LU88827A1 (en) 1996-10-16 1996-10-16 Gasket for sheet pile
PCT/EP1997/005225 WO1998016691A1 (en) 1996-10-16 1997-09-24 Sealing joint for sheet piles

Publications (2)

Publication Number Publication Date
EP0932728A1 EP0932728A1 (en) 1999-08-04
EP0932728B1 true EP0932728B1 (en) 2002-03-06

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EP97943893A Expired - Lifetime EP0932728B1 (en) 1996-10-16 1997-09-24 Sealing joint for sheet piles

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US (1) US6189890B1 (en)
EP (1) EP0932728B1 (en)
AT (1) ATE214118T1 (en)
AU (1) AU4556997A (en)
CA (1) CA2268352C (en)
DE (1) DE69710906T2 (en)
LU (1) LU88827A1 (en)
NO (1) NO319287B1 (en)
PL (1) PL187535B1 (en)
WO (1) WO1998016691A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU735648B2 (en) 1996-07-12 2001-07-12 Ariad Pharmaceuticals, Inc. Materials and method for treating or preventing pathogenic fungal infection
US6758634B2 (en) * 2001-02-06 2004-07-06 Bechtel Bwxt Idaho, Llc Subsurface materials management and containment system
US7153061B2 (en) * 2000-12-04 2006-12-26 Battelle Energy Alliance, Llc Method of in situ retrieval of contaminants or other substances using a barrier system and leaching solutions
US7160061B2 (en) 2000-12-04 2007-01-09 Battelle Energy Alliance, Llc Subterranean barriers including at least one weld
US7259963B2 (en) * 2004-12-29 2007-08-21 American Power Conversion Corp. Rack height cooling
US8506668B2 (en) * 2009-03-30 2013-08-13 Baldwin Filters, Inc. Fluted filter with axial seal

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB454306A (en) * 1935-03-28 1936-09-28 Walter Villa Gilbert Improvements in means for preventing corrosion
BE738437A (en) * 1969-09-04 1970-02-16
US3784441A (en) * 1971-07-12 1974-01-08 Kaempen Industries Composite structure
US4366284A (en) * 1980-10-17 1982-12-28 Hayakawa Rubber Company Limited Aqueously-swelling water stopper and a process of stopping water thereby
US4670089A (en) * 1986-02-27 1987-06-02 Dixon Industries Corporation Method of bonding polytetrafluoro-ethylene composition to metal substrates
DE3633575A1 (en) 1986-10-02 1988-04-07 Niederberg Chemie DOUBLE-LAYER SEAL FOR SLOT WALL
FR2634505B1 (en) * 1988-07-22 1992-04-24 Rhone Poulenc Sa PROCESS FOR SEALING CURTAIN SHEETS
LU88397A1 (en) * 1993-08-27 1995-03-01 Profilarbed Sa Method for sealing sheet pile assemblies, device for placing the sealing material and sealing joint thus produced
US5938210A (en) * 1997-09-11 1999-08-17 Schatzle; Charles F. Coated gasket material and method for making the same

Also Published As

Publication number Publication date
DE69710906T2 (en) 2002-09-19
AU4556997A (en) 1998-05-11
EP0932728A1 (en) 1999-08-04
PL187535B1 (en) 2004-07-30
US6189890B1 (en) 2001-02-20
DE69710906D1 (en) 2002-04-11
NO991850L (en) 1999-04-16
LU88827A1 (en) 1998-04-16
PL332900A1 (en) 1999-10-25
NO991850D0 (en) 1999-04-16
CA2268352C (en) 2007-03-27
CA2268352A1 (en) 1998-04-23
WO1998016691A1 (en) 1998-04-23
ATE214118T1 (en) 2002-03-15
NO319287B1 (en) 2005-07-11

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