EP0932728A1 - Sealing joint for sheet piles - Google Patents

Sealing joint for sheet piles

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Publication number
EP0932728A1
EP0932728A1 EP97943893A EP97943893A EP0932728A1 EP 0932728 A1 EP0932728 A1 EP 0932728A1 EP 97943893 A EP97943893 A EP 97943893A EP 97943893 A EP97943893 A EP 97943893A EP 0932728 A1 EP0932728 A1 EP 0932728A1
Authority
EP
European Patent Office
Prior art keywords
products
paraffinic
sheet piles
product
sheet pile
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
EP97943893A
Other languages
German (de)
French (fr)
Other versions
EP0932728B1 (en
Inventor
Jean-Michel Moulin
André RIX
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.)
ArcelorMittal Belval and Differdange SA
Original Assignee
Profilarbed 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 Profilarbed SA filed Critical Profilarbed SA
Publication of EP0932728A1 publication Critical patent/EP0932728A1/en
Application granted granted Critical
Publication of EP0932728B1 publication Critical patent/EP0932728B1/en
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
    • 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 complex geometries (for example sheet piles in Z, U, flat or box joints), which are assembled to form continuous walls called curtains. Sheet pile assemblies are used more especially during excavation work, construction of dams, water retention basins, containment of polluted land etc., to retain the soil and to some extent also the water. On building sites, sheet piles, which are often assembled in pairs
  • German patent application DE-AS 27 22 978 according to which a seal is formed in the slip-on lock, by injecting an appropriate product therein, generally polyurethane, and by equalizing this product by means of a mobile device to give it the desired shape.
  • the seals mentioned above have the disadvantage of having little resistance to stresses during engagement and in particular to shearing.
  • the locks rub against each other and the seal can be destroyed, locally at least, by planing the seal.
  • the purpose of the present invention is to provide a product for sealing the sheet pile locks, which is both safe from an environmental point of view and which withstands stresses well during engagement.
  • This object is achieved by the use of a paraffinic product to seal the sheet pile joints.
  • paraffinic product is advantageous because this product is inert and does not release harmful components into the environment. Given its consistency and good plastic deformability, the paraffin joint is not likely to be destroyed when the sheet piles are engaged. It resists shear and other stresses better during engagement than polyurethane seals.
  • Sealing 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 .
  • seals made of paraffinic products are much cheaper than seals made of polyurethane.
  • Bitumen-based sealing compounds have long been used to seal sheet pile locks. These products generally have an acceptable shear strength. However, one of the disadvantages of these sealants is that when used in contact with groundwater, certain harmful components can be released into the environment.
  • paraffinic products in the manufacture of seals for sheet pile locks offers several advantages over the use of bitumen-based products.
  • paraffinic products have a higher lubricity than bituminous products, i.e. that sheet piles comprising a joint made of paraffinic products generally engage more easily: the force required to couple two sealed sheet piles with a paraffinic product is less than that which is necessary to pair sealed sheet piles with a bituminous product.
  • Seals in paraffinic products are not degraded by mineral oils, unlike seals in bituminous products.
  • the resistance of seals in paraffinic products to petroleum and / or petrol is much higher than that of seals in bituminous products.
  • the application temperature of paraffinic products is significantly lower than that of bitumen products. Indeed, it suffices to heat the paraffinic products to temperatures below 140 ° C. while the bituminous products must be heated to approximately 200 ° C. At these temperatures, bituminous products tend to give off unpleasant odors, and overheating can also produce harmful fumes. While the locks are engaged, a certain amount of sealant is ejected from the lock and must be removed manually.
  • the paraffinic products are removed by scraping with a tool, and the surface is easily finished using a solvent based on aliphatic hydrocarbons such as the product "Premium Degreaser” from the firm Texaco.
  • the quantity of paraffinic products ejected is less and they are distributed more evenly in the lock.
  • the aesthetic appearance of a sheet pile curtain comprising joints in paraffinic products is consequently much better than that of a sheet pile curtain comprising joints in bituminous products.
  • the locks When reusing sheet piles, the locks should generally be thoroughly cleaned.
  • paraffinic products Another advantage of paraffinic products is that they remain homogeneous even at high temperatures.
  • bitumen-based products there is sometimes a local stiffening of the joints in bituminous products which is due to inhomogeneities. These stiffenings can lead to difficulties in threading sheet piles. In such cases, a slight heating of the recalcitrant zone must be practiced in order to facilitate the twinning of the sheet piles.
  • joints in paraffinic products can be colored in the mass by adding a dye or else colored pigments to the molten 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 which can be used to seal sheet pile locks have a dropping point of between 100 and 140 ° C. measured according to standard ISO 2176 with a Mettler FP5 / 53 device.
  • the paraffinic products have a cone penetration of between 20 and 50 mm / 10 determined according to the ASTM D937 / 58 method or equivalent, eg NF T60-119.
  • the paraffinic products which can be used 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 circular sample 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 the mechanical ruin of the sample.
  • the paraffinic product comprises at least 50% of paraffin waxes.
  • the paraffinic products which can be used for sealing sheet pile locks can also include mineral oils, adhesion agents, antioxidants and / or other usual additives.
  • 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.
  • the physico-chemical performance of the seals was also tested. These physico-chemical tests focused on the resistance of the seals to water pressure, on the consistency of the product in vertical position when it is subjected to temperatures up to 80 ° C, and on compatibility with various agents chemicals.
  • the strength of the joints in the locks during the interlocking of the sheet piles was examined on a conventional twinning line.
  • the purpose of the tests was to study the adhesion and the lubricating effect of the products as well as the possible problems of jamming.
  • the tests were carried out with AZ 18 sheet piles 6 m long.
  • the products were heated until they were liquid and were poured into the locks to form a seal 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.

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

JOINT DΈTANCHEITE POUR PALPLANCHES GASKET FOR PILING
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. Sur les chantiers, les palplanches, qui sont souvent assemblées deux à deuxSheet piles are metal sections with more or less complex geometries (for example sheet piles in Z, U, flat or box joints), which are assembled to form continuous walls called curtains. Sheet pile assemblies are used more especially during excavation work, construction of dams, water retention basins, containment of polluted land etc., to retain the soil and to some extent also the water. On building sites, sheet piles, which are often assembled in pairs
(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.(twinning) in the factory by machines called threaders, are driven into the ground by threshing, by vibration, or by presses to form a metal wall due to the mutual engagement of their locks or claws. A certain clearance at the level of the locks must allow an easy engagement of the sheet piles during their assembly, which naturally constitutes a source of leakage.
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. 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. Ces deux procédés ne sont toutefois applicables que si l'une des deux faces du rideau de palplanches reste accessible.As soon as the sheet pile wall requires sealing, whether it is complete or as efficient as possible, additional sealing measures must be provided for the locks. We tried to make the sheet pile walls waterproof, following their beating, either by welding the sheet piles to each other, or by injecting under pressure a sealing mass in the interstices of the locks, as described in the German patent application. published under No. DE-OS-21 40 250. These two methods are however only applicable if one of the two faces of the sheet pile wall 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 wall is not accessible, it is possible to proceed as described in the German patent application published under No. DE-OS-21 42 957 and to inject sheet piles into the lock 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 German patent application DE-AS 27 22 978 according to which a seal is formed in the slip-on lock, by injecting an appropriate product therein, generally polyurethane, and by equalizing this product 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 having little resistance to stresses during engagement and in particular to shearing. When the sheet piles are driven in, the locks rub against each other and the seal can be destroyed, locally at least, by planing the seal.
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 generally requires extensive preparation of the lock. Indeed, it is often necessary to clean the lock by sandblasting and to apply a product improving the adhesion of the joint on the steel. Despite all these precautions, sheet piles including this type of joint cannot be driven in by vibration because the joints are too badly damaged during driving in.
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 sealing the sheet pile locks, which is both safe from an environmental point of view and which withstands stresses well during engagement.
Ce but est atteint par l'utilisation d'un produit paraffinique pour rendre étanches des joints de palplanches.This object is achieved by the use of a paraffinic product to seal the 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. 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.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. Given its consistency and good plastic deformability, the paraffin joint is not likely to be destroyed when the sheet piles are engaged. It resists shear and other stresses better during engagement than 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. De plus, les joints en produits paraffiniques sont beaucoup moins chers que les joints en polyuréthane.Sealing 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 . In addition, seals made of paraffinic products are much cheaper than seals made of polyurethane.
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.Bitumen-based sealing compounds have long been used to seal sheet pile locks. These products generally have an acceptable shear strength. However, one of the disadvantages of these sealants is that when used in contact with groundwater, certain 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 for sheet pile locks offers several advantages over 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. 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.The plasticity and the cold deformability of the paraffinic product are clearly superior to those of bitumen-based products. These properties were confirmed during interlocking tests for sheet piles. Paraffinic products have a higher lubricity than bituminous products, i.e. that sheet piles comprising a joint made of paraffinic products generally engage more easily: the force required to couple two sealed sheet piles with a paraffinic product is less than that which is necessary to pair sealed sheet piles with a bituminous product.
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. 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. 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.Seals in paraffinic products are not degraded by mineral oils, unlike seals in bituminous products. The resistance of seals in paraffinic products to petroleum and / or petrol is much higher than that of seals in bituminous products. The application temperature of paraffinic products is significantly lower than that of bitumen products. Indeed, it suffices to heat the paraffinic products to temperatures below 140 ° C. while the bituminous products must be heated to approximately 200 ° C. At these temperatures, bituminous products tend to give off unpleasant odors, and overheating can also produce harmful fumes. While the locks are engaged, a certain amount of sealant is ejected from the lock and must be removed manually. The paraffinic products are removed by scraping with a tool, and the surface is easily finished using a solvent based on aliphatic hydrocarbons such as the product "Premium Degreaser" from the firm Texaco. The quantity of paraffinic products ejected is less and they are distributed more evenly in the lock. The aesthetic appearance of a sheet pile curtain comprising joints in paraffinic products is consequently much better than that of a sheet pile curtain comprising joints in bituminous products.
En cas de réutilisation des palplanches, les serrures doivent en général être nettoyées complètement.When reusing sheet piles, the locks should generally be thoroughly cleaned.
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 joints in bituminous product must be removed with a blowtorch, while the joints in paraffinic products are simply removed 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, there is sometimes a local stiffening of the joints in bituminous products which is due to inhomogeneities. These stiffenings can lead to difficulties in threading sheet piles. In such cases, a slight heating of the recalcitrant zone must be practiced in order to facilitate the twinning of the 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. Le joint en produits paraffiniques peut être appliqué en usine ou bien sur le chantier avant l'enclenchement des palplanches.Another advantage lies in the fact that the joints in paraffinic products can be colored in the mass by adding a dye or else colored pigments to the molten products. 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. 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.According to a first advantageous embodiment, the paraffinic products which can be used to seal sheet pile locks have a dropping point of between 100 and 140 ° C. measured according to standard ISO 2176 with a Mettler FP5 / 53 device. Preferably, the paraffinic products have a cone penetration of between 20 and 50 mm / 10 determined according to the ASTM D937 / 58 method or equivalent, eg NF T60-119.
Selon un autre mode de réalisation avantageux, les produits paraffiniques utilisables pour l'etanchement 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 which can be used 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 circular sample 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 the mechanical ruin of the sample.
Dans une exécution préférée, le produit paraffinique comprend au moins 50% de cires de paraffines. Les produits paraffiniques utilisables pour l'etanchement de serrures de palplanches peuvent également comprendre des huiles minérales, des agents d'adhérence, des antioxydants et/ou d'autres additifs usuels.In a preferred embodiment, the paraffinic product comprises at least 50% of paraffin waxes. The paraffinic products which can be used for sealing sheet pile locks can also include mineral oils, adhesion agents, antioxidants and / or other usual additives.
D'autres caractéristiques de l'invention sont décrites, à titre non limitatif, dans les exemples. Différents produits ont été testés et les performances de ces produits ont été comparées. Other characteristics of the invention are described, without limitation, in the examples. Different products have been tested and the performance of these products has been compared.
Tableau 1 : Produits testésTable 1: Products tested
Différents tests ont été effectués pour vérifier :Various tests have been carried out to verify:
• l'application des produits dans les serrures de palplanches • les performances physiques• application of products in sheet pile locks • physical performance
• le comportement vis-à-vis de différents produits chimiques• behavior towards different chemicals
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. 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.
Tableau 2 : Application des différents produitsTable 2: Application of the different products
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.The physico-chemical performance of the seals was also tested. These physico-chemical tests focused on the resistance of the seals to water pressure, on the consistency of the product in vertical position when it is subjected to temperatures up to 80 ° C, and on compatibility with various agents chemicals.
Tableau 3: Tests physico-chimiquesTable 3: Physico-chemical tests
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. 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.
Tableau 4: Rejets toxiques des joints de palplanchesTable 4: Toxic discharges from sheet pile joints
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 fur die Behandlung vonThe authorized limits are those imposed by the legislation of the German state of Bayern in his work "Altlastenleitfaden fur die Behandlung von
Altablagerungen und kontaminierten Standorten in Bayern" publié par leAltablagerungen und kontaminierten Standorten in Bayern "published by
Bayrisches Staatsministerium fur die Landesentwicklung und Umweltfragen en 1992.Bayrisches Staatsministerium fur die Landesentwicklung und Umweltfragen in 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. Les essais ont été réalisés avec des palplanches AZ 18 de 6 m de longueur.The strength of the joints in the locks during the interlocking of the sheet piles was examined on a conventional twinning line. The purpose of the tests was to study the adhesion and the lubricating effect of the products as well as the possible problems of jamming. The tests were carried out with AZ 18 sheet piles 6 m long.
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. Pour ces essais une seule des deux serrures a été remplie de produit d'étanchéité.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 rl (Luxembourg) in 1993. For these tests, only one of the two locks was filled with sealant.
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.The products were heated until they were liquid and were poured into the locks to form a seal 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.
Tableau 5 : Comportement des produits à chaudTable 5: Behavior of hot products
Les essais d'enclenchement ont été effectués sur une ligne de jumelage classique et se sont déroulés en deux temps:The interlocking tests were carried out on a conventional twinning line and took place in two stages:
- 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;- 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;
- 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.- the last three meters have been engaged in automatic operation at 0.8 m / s in order to be able to measure the force required for assembly and therefore assess the degree of lubrication of each product.
Les résultats de ces essais sont résumés dans le tableau 6. Tableau 6: Aspect des joints après enclenchementThe results of these tests are summarized in Table 6. Table 6: Appearance of the joints after engagement
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.How the excess product is ejected from the lock depends on the flexibility of the product. If it is hard, it tears, if it is tender, it tends to be scraped. In general, it has been observed that the evacuation of the surplus product takes place essentially in front of the sheet pile which engages.
Elle rabote en quelque sorte le surplus de produit.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. The tests showed that it was not possible to engage the sheet piles comprising the product "Soprema". This product was apparently too hard and blocked the assembly operation.

Claims

Revendications claims
1. Utilisation d'un produit paraffinique pour rendre étanches des joints de palplanches.1. Use of a paraffinic product to seal the sheet pile joints.
2. Utilisation selon la revendication 1 caractérisée en ce que le produit paraffinique présente un point de goutte compris entre 100 et 140°C.2. Use according to claim 1 characterized in that the paraffinic product has a drop point between 100 and 140 ° C.
3. Utilisation selon l'une quelconque des revendications précédentes caractérisée en ce que le produit paraffinique présente une pénétration d'un cône compris entre 20 et 50 mm/10.3. Use according to any one of the preceding claims, characterized in that the paraffinic product has a penetration of a cone of between 20 and 50 mm / 10.
4. Utilisation selon l'une quelconque des revendications précédentes caractérisée en ce que le produit paraffinique présente une résistance à la pression hydrostatique d'au moins 0,12 bar/mm de préférence d'au moins 0,22 bar.4. Use according to any one of the preceding claims, characterized in that the paraffinic product has a resistance to hydrostatic pressure of at least 0.12 bar / mm, preferably at least 0.22 bar.
5. Utilisation selon l'une quelconque des revendications précédentes caractérisée en ce que le produit paraffinique comprend au moins 50% de cires de paraffines. 5. Use according to any one of the preceding claims, characterized in that the paraffinic product comprises at least 50% of paraffin waxes.
6. Utilisation selon l'une quelconque des revendications précédentes caractérisée en ce que le produit paraffinique comprend des huiles de paraffine, des huiles minérales, des agents d'adhérence, des antioxydants et/ou d'autres additifs usuels.6. Use according to any one of the preceding claims, characterized in that the paraffinic product comprises paraffin oils, mineral oils, adhesion agents, antioxidants and / or other usual additives.
7. Utilisation selon l'une quelconque des revendications précédentes caractérisée en ce que le produit paraffinique comprend en outre des colorants ou des pigments colorés. 7. Use according to any one of the preceding claims, characterized in that the paraffinic product also comprises dyes or colored 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 true EP0932728A1 (en) 1999-08-04
EP0932728B1 EP0932728B1 (en) 2002-03-06

Family

ID=19731630

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97943893A Expired - Lifetime EP0932728B1 (en) 1996-10-16 1997-09-24 Sealing joint for sheet piles

Country Status (10)

Country Link
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)

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* 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

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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

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Title
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Also Published As

Publication number Publication date
DE69710906T2 (en) 2002-09-19
AU4556997A (en) 1998-05-11
PL187535B1 (en) 2004-07-30
US6189890B1 (en) 2001-02-20
DE69710906D1 (en) 2002-04-11
EP0932728B1 (en) 2002-03-06
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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