EP1012417B1 - Compression tubing for producing water-impermeable or only slightly water-permeable, gastight and/or friction-locked building joints and process for manufacturing the same - Google Patents

Abstract

The invention relates to compression tubing (1) for producing water-impermeable or only slightly water-permeable, gastight and/or friction-locked building joints. These joints are made in particular using workable, thermosetting materials such as concrete. The inventive tubing has at least one casing which encloses at least one inner area for conveying injection materials both in the direction of extension of the tubing, and transversely to the direction of extension of the tubing beyond (outside) the interior area. The casing has openings (13) which connect the inner area to the outer area surrounding the compression tube (1), thus enabling the transverse conveyance of fluid. The casing also has valve elements which largely seal the openings (13) against the penetration of liquid or other material into the inner area, while permitting the passage of pressurized injection material from the inner area(s) to the outer area.

Description

The invention relates to a compression hose for producing water-impermeable or only slightly water-permeable, gas-tight and / or non-positive Building joints with the features of the preamble of claim 1 and a manufacturing method therefor according to the preamble of claim 26.

Compression hoses of this type are installed in the area of structural joints, z. B. along a connection area of a first structural section made of concrete, to which a connecting wall is attached at a later time, in particular should be concreted. Because in such areas the building is not can be monolithic in the actual sense, there is a risk of water permeability in such a zone. The compression hose itself has taken for itself only in special cases already a sealing effect, namely when he z. B. has a swelling band acting under the influence of moisture. His The main task is to inject material along its direction of extension to promote, which in an open, projecting from the building End of mouth promoted under a certain (first) delivery pressure becomes. Therefore it is necessary to consider the transport resistances for the injection material to be kept as low as possible in the longitudinal direction of the hose. So that Injection material can develop its sealing effect, it must cross to Longitudinal hose direction in the joint area to be sealed, d. H. essentially penetrate into any cavities there. This intrusion happens usually under a higher pressure than the delivery pressure, the at the mouth end of the compression hose on the injection material, for. B. is exercised with a high pressure pump. So the main task, namely that Cross conveying into the area to be sealed over the entire area, usually many Meter hose length with the same or similar as possible Pressure can take place, the pressure exerted for this purpose must be along the compression hose build in the same size as possible.

Furthermore, it must be prevented in a suitable manner that before pressing of injection material, the cavity formed by the compression hose of the delivery channel through materials penetrating it from radially outside and so that the conveyor line can be blocked. For example, for sealing of construction joints made of concrete prevent concrete milk or other material in the manufacture of a connection concrete in the longitudinal conveying space of the injection hose can penetrate.

Many attempts have already been made to use such a compression hose to be produced in such a way that a favorable longitudinal conveyance and a favorable one Cross-funding with reasonable manufacturing and / or assembly costs or Pressing effort is made possible.

In the first basic type of known compression hoses, the compression hose is used only as a placeholder (DE 196 38 875 A1) who designs or uses it in this way is that he collapses radially before or during the pressing process and the injection channel required for the longitudinal conveyance of the injection material radially outside of the injection hose.

In a second basic type, namely the generic compression hoses, the longitudinal conveyor channel is provided inside the hose. To cross-funding To enable, the hose jacket surrounding the interior is valve-like closable openings. These valves are designed so that they - as a rule - only open at such pressure on the injection material, which is higher than the pressure required for longitudinal conveyance, because otherwise cross-funding can begin at a time when Injection material is not sufficiently advanced longitudinally. This valve-like closable hose jacket openings act like one-way valves and prevent the penetration of those located in the exterior of the compression hose Material such as B. cement milk, into the interior of the hose.

Compression hoses of the second basic type are, inter alia, from DE-A1-43 40 845, DE-U1-89 15 525 and EP-B1-0 199 108.

The compression hose according to DE-A1-196 38 875 actually takes a hybrid position between the two basic types of compression hoses mentioned above. In the exemplary embodiments according to FIGS. 1 to 3 there are namely three longitudinal conveying spaces surrounded by lateral surfaces of the injection hose. The the jacket region enclosing the respective longitudinal conveying space forms a passage slot for injection material extending along the delivery hose (Grouting material) and has linear sealing and contact surfaces on both sides that move away from each other during grouting. Each longitudinal conveying space has a single longitudinal slot, the profile cross sections are very different from each other on both sides of this slot. It has been found that the restoring forces counteracting the slot opening are comparatively large and, in particular, decreasing Temperatures due to the properties of the hose materials that can be used enlarge noticeably. A comparable problem arises with those from DE-A1-43 40 845 known compression hoses. The latter differ from the aforementioned compression hoses in the core in that they are not suitable are able to expand the cross section of the longitudinal conveyor channel by collapsing. The problems that arise are therefore also greater than with the compression hose according to DE-A1-196 38 875.

In the case of the compression hose known from EP-B1-0 199 108, the hose jacket has an approximately star-shaped outer cross-section with a central longitudinal conveying cavity and jacket openings in the area between the radial Pointed valleys. The hose material is practically incompressible. The Valleys are strips of highly compressible, which fill the valleys flush Material, such as foam rubber, filled, which serve as valve and sealant. As a result, compressible and non-compressible strips of material alternate from. During cross conveying, i.e. pressing the injection material into external cavities to be sealed must be through the approximately circular jacket openings Injection material that passes through will displace the foam material and along the one formed in the profile valleys with the hose jacket Contact surfaces in the cavities that form laterally and then radially penetrate outside the surface of the injection hose. A together with the grouting hose the elastic rubber mesh surrounding the outside secures the Cohesion and the exact location of the foam strips in the valleys or Grooves of the actual compression hose. The effectiveness of the foam rubber strips as a one-way valve, which determines the return flow of injection material preventing the injection pressure from dropping again depends on the restoring forces of the foam rubber material, which enable the foam rubber profile, after the initial compression, it is now expanded to expand back to the original cross section and again the Take sealing system in the outer longitudinal groove of the compression hose should. Two properties conflict here: If the restoring forces are comparatively are large, the one-way valve action remains even after a successful Injection step more or less completely preserved; however, this is a burden the pressure required during injection, which is the greater hardness of the Match foam strips, d. H. must be comparatively large to the one-way valve open when injecting. Conversely, greater softness of the Foam rubber that the reclosing of the openings for Injection material in the base of the groove is only comparatively imperfectly possible - however, the one-way valve opens proportionally in this case light. This problem, namely through suitable material selection and / or Shaping to suitably adjust the opening and closing properties of the "valves", adheres to practically all generic compression hoses and compression hose systems , for example also from DE-U1-89 15 525 known compression hose, which consists of an inner hose and one of these outer tube closely surrounding the film, each offset with one another arranged openings are provided.

Generic compression hoses are known from DE 43 14 302 A1, at which a coat of elongated, side-by-side, in their mechanical Properties similar profile bodies from a resilient swellable Sealing material is made. However, here again the valve-like ones Means formed from labyrinths by a tightly fitting inside of the coat Inner hose arise.

Proceeding from this, the invention is based on the problem of a generic one To create a compression hose that is relatively good with good longitudinal conveying properties has easy-opening one-way valves that are nevertheless satisfactory Have resealable properties. A simple one is also desired Manufacture and in particular a one-piece design of the compression hose.

To solve the problem, a compression hose with the features of the claim 1 suggested.

In the case of a compression hose according to the invention, they are for transverse conveyance important sheath openings in large numbers or lengths the compression hose circumference can be distributed and, if desired, in the longitudinal direction of the hose be as long as you like, as with the compression hoses according to DE-A1-196 38 875 and DE-A1-43 40 845. In contrast to the known Generic compression hoses are the resistances against opening of the one-way valves due to the lack of labyrinth seals low, without the ability to reclose, i. H. to get the one-way effect, is lost or decreases significantly. The preferred cross-section-like, forming at least part of the hose jacket, elongated profile body can due to their similar mechanical Properties change their relative position particularly easily and therefore always where comparatively large cross sections for the passage of Create injection material outside. Since the elongated profile body is not or are at best less compressible, an external back pressure immediately becomes used, the profile body transverse to its longitudinal direction back in to push back their original position. These properties also come then Advantageous if multiple or subsequent pressing is required and the longitudinal conveying space must be emptied between these pressing steps, so that the injection material in the longitudinal delivery chamber does not react and through Hardened against re-injecting.

On the one hand, the material for the profile body is elastically easily stretchable materials, such as rubber-elastic plastics, e.g. B. silicones. These are at most not very compressible. But there are also hardly any elastic stretch Materials such as thermosetting plastics, foams with a relatively hard surface or even metals into consideration; these usually have sufficient bending elasticity to be able to change the passage cross-sections for injection material.

Each profile body has linear contact areas on its surface the other profile bodies. Spring-elastic holding means hold the profile body along their line-shaped contact surfaces when the injection material is not under pressure.

It is possible to have an endless strand made up of several combined profile bodies manufacture and the sealing surfaces by cutting between the contiguous To generate profile bodies below. In any case, the compression hose formed as a one-piece strand by one-piece extrusion.

Die vorgenannten sowie die beanspruchten und in den Ausführungsbeispielen beschriebenen erfindungsgemäß zu verwendenden Bauteile unterliegen hinsichtlich ihrer Größe, Formgestaltung, Materialauswahl und technischen Konzeption keinen besonderen Ausnahmebedingungen, so daß die in dem jeweiligen Anwendungsgebiet bekannten Auswahlkriterien uneingeschränkt Anwendung finden können.

Weitere Einzelheiten, Merkmale und Vorteile des Gegenstandes der Erfindung ergeben sich aus der nachfolgenden Beschreibung der zugehörigen Zeichnung, in der - beispielhaft - bevorzugte Ausführungsformen des Verpreßschlauches dargestellt sind. In der Zeichnung zeigen

Fig. 1

einen Verpreßschlauch, bestehend aus vier Profilsträngen aus Vollmaterial - im Querschnitt;

Fig.2

einen ähnlichen Verpreßschlauch wie in Fig. 1 mit einem zusätzlichen Innenschlauch;

Fig. 3

eine andere Ausführungsform eines Verpreßschlauches mit Innenschlauch, wobei die Durchmesser der im Querschnitt kreisrunden länglichen Profilkörper wesentlich kleiner als der Außendurchmesser des Innenschlauches ist;

Fig. 4

einen ähnlichen Verpreßschlauch, bei dem im Unterschied zu der Ausführungsform nach Fig. 3 sich Öffnungen durch die Innenschlauchwandung nach außen konisch erweitern;

Fig. 5

eine weitere Ausführungsform eines Verpreßschlauches mit Innenschlauch in perspektivischer Ansicht mit im Querschnitt halbrunden länglichen Profilkörpern;

Fig. 6

einen weiteren Verpreßschlauch ohne Innenschlauch (in Abwandlung von Fig. 1);

Fig. 7

einen weiteren Verpreßschlauch mit Innenschlauch und im Querschnitt etwa dreieckiger Grundform;

Fig. 8

einen weiteren Verpreßschlauch mit nur auf einem Teilumfang angeordneten länglichen Profilkörpern;

Fig. 9

einen ähnlichen Verpreßschlauch wie in Fig. 8, jedoch mit etwa halbkreisförmigem Querschnitt mit ebener Auflagefläche;

Fig. 10

ein anderer Verpreßschlauch mit halbkreisförmigem Querschnitt, bei dem die länglichen Profilkörper lediglich im kreisbogenförmigen Umfangsbereich angeordnet sind;

Fig. 11

einen anderen Verpreßschlauch mit zwei Innenschläuchen;

Fig. 12

einen weiteren Verpreßschlauch mit im Querschnitt kreisrunden länglichen Profilkörpern auf einem Teilumfang in einstückiger Ausführungsform;

Fig. 13

ein ähnlicher Verpreßschlauch wie in Fig. 12, jedoch mit ovalen Profilkörperquerschnitten und strahlenförmigen Verbindungsstegen;

Fig. 14

einen Verpreßschlauch, ähnlich wie in Figuren 3 und 4, mit einem außenliegenden Halteprofil;

Fig. 15

eine weitere Ausführungsform eines Halteprofiles;

Fig. 16

einen Verpreßschlauch in Außenansicht mit Schlauchanschluß für Injektionsmaterialzu- oder -abfuhr bzw. Entlüftung - im Längsschnitt;

Fig. 17

einen weiteren Verpreßschlauch mit im wesentlichen quadratischen Querschnitt;

Fig. 18

einen weiteren Verpreßschlauch mit ähnlichem Querschnitt wie in Fig. 17 aber mit innen hohlen Profilkörpern;

Fig. 19

einen weiteren Verpreßschlauch mit ähnlichem Aufbau wie in Fig. 18 aber anderen Querschnittsverhältnissen;

Fig. 20

einen weiteren Verpreßschlauch in Abwandlung des Querschnitts nach Fig. 19;

Fig. 21A/B

einen weiteren Profilkörper mit etwa quadratischem Innenschlauch und streifenförmigen Profilkörpern in paarweise Anordnung in zwei unterschiedlichen Ausführungsformen (linke Bildhälfte/rechte Bildhälfte);

Fig. 22

einen weiteren Verpreßschlauch mit streifenförmigen Profilkörpern und zusätzlichen Dichtprofilen an Längskanten sowie

Fig. 23

einen weiteren Verpreßschlauch mit etwa quadratischem Innenschlauch und etwa kreisringsegmentförmigen Profilkörpern.

Compression hoses according to the invention can be used in a large number of variations. These possible variations, which serve in particular to make them easy to assemble and to use them in a functional manner, result from the subclaims and the description of the following exemplary embodiments and their variants:

With regard to their size, shape, material selection and technical conception, the aforementioned components and the components claimed and to be used according to the invention described in the exemplary embodiments are not subject to any special exceptional conditions, so that the selection criteria known in the respective field of application can be used without restriction.

Further details, features and advantages of the subject matter of the invention result from the following description of the associated drawing, in which - by way of example - preferred embodiments of the compression hose are shown. Show in the drawing

Fig. 1

a compression hose, consisting of four profile strands made of solid material - in cross section;

Fig.2

a similar compression hose as in Figure 1 with an additional inner hose.

Fig. 3

another embodiment of a compression hose with an inner hose, the diameter of the elongated profile body having a circular cross section being substantially smaller than the outer diameter of the inner hose;

Fig. 4

a similar compression hose, in which, in contrast to the embodiment according to FIG. 3, openings widen conically through the inner hose wall;

Fig. 5

a further embodiment of a compression hose with inner hose in a perspective view with semi-circular elongated profile bodies in cross section;

Fig. 6

a further compression hose without an inner hose (in a modification of Fig. 1);

Fig. 7

a further compression hose with an inner hose and a triangular basic cross-section;

Fig. 8

a further compression hose with elongated profile bodies arranged only on a partial circumference;

Fig. 9

a similar compression hose as in Figure 8, but with an approximately semicircular cross-section with a flat contact surface.

Fig. 10

another compression hose with a semicircular cross-section, in which the elongated profile bodies are arranged only in the circular-arc-shaped peripheral region;

Fig. 11

another compression hose with two inner hoses;

Fig. 12

a further compression hose with elongated profile bodies which are circular in cross section on a partial circumference in a one-piece embodiment;

Fig. 13

a compression hose similar to that in FIG. 12, but with oval profile body cross sections and radiating connecting webs;

Fig. 14

a compression hose, similar to that in Figures 3 and 4, with an external holding profile;

Fig. 15

a further embodiment of a holding profile;

Fig. 16

a compression hose in an external view with hose connection for injection material supply or removal or ventilation - in longitudinal section;

Fig. 17

a further compression hose with a substantially square cross section;

Fig. 18

a further compression hose with a similar cross-section as in FIG. 17 but with hollow profile bodies inside;

Fig. 19

a further compression hose with a structure similar to that in FIG. 18 but with different cross-sectional ratios;

Fig. 20

a further compression hose in a modification of the cross section according to FIG. 19;

21A / B

another profile body with an approximately square inner tube and strip-shaped profile bodies arranged in pairs in two different embodiments (left half of the picture / right half of the picture);

Fig. 22

another compression hose with strip-shaped profile bodies and additional sealing profiles on the longitudinal edges as well

Fig. 23

a further compression hose with an approximately square inner hose and approximately circular segment-shaped profile bodies.

The compression hose shown in Fig. 1 represents a simplest embodiment Four circular cross-sectional profile bodies 10 of the same size form one about square outer and inner cross-section, whereby they are approximately linear Touch sealing and contact surfaces 15 of small width and one in Cross-section stem-shaped interior 12 form, which extends over the entire length of the injection hose extends. The profile body 10 are along their contact and Sealing surfaces 15 by extruding all four profile bodies in one piece with release or subsequent provision of slot-shaped openings 13 between the inner space 12 and the outer space surrounding the compression hose 1 connected with each other. The connection areas of the profile body with each other serve as "holding means" in the sense of the invention and secure the relative position the profile body to each other and the contact of the contact and sealing surfaces 15th together. As a result, the slot-shaped openings 13 are in the normal case closed by lip-shaped pressing of the contact and sealing surfaces 15 together. Only an increased internal pressure in the interior 12 is able to open the openings 13 for the passage of injection material into the outside to effect. This is indicated by arrows Pi (= internal pressure) in the interior 12 in FIG. 1 clarified. In contrast, an external pressure applied from radially outside causes Pa that the pending at the slot-shaped openings 13 Closing force increases and thus prevents material from entering the interior 12 (One-way valve action). If three instead of four profile bodies are used, then so Mutual securing of position is somewhat more stable - but to the disadvantage of the flow cross section in the interior.

In the modification of the exemplary embodiment from FIG. 1 shown in FIG. 2 an inner tube 11 serves to stabilize the position of the profile bodies 10 relative to one another, what z. B. is then useful if the compression hose 1 from four individual strands (elongated profile bodies 10) is produced. In this case, you can the holding means for the profile body can also be realized in that the profile body 10 with the inner tube 11 adapted to the interior diameter are connected in any manner to its outer surface; this will be in Connection with Figures 12 and 13 will be explained in more detail.

When using an inner tube 11, the interior 12 is in one Central room 12A and gusset rooms 12B divided. These are advantageous by means of openings 14 through the wall of the inner tube 11 with one another fluidly connected. This makes it possible to use the central space 12A primarily for longitudinal conveying and the gusset spaces 12B primarily for transverse conveying of injection material. However, the gusset spaces are also preferred 12B used for longitudinal conveyance.

FIGS. 3 to 5, 11 and 14 show modifications of the connection in connection with FIG. 2 Embodiment described, wherein in the embodiment of FIG. 14 Holding means 16 in the form of a nail clamp or a cross section of a nail clamp corresponding elongated holding profile, e.g. B. a profiled sheet metal strip, is provided.

11, the inner tube 11 is divided into two parts. hereby it becomes possible to first close the one central subspace 12A 'for injecting to use. For a later re-injection, the other central subspace 12A " to be used. Emptying the first used central subspace 12A 'can therefore eliminated.

All of these embodiments - including that in Fig. 1 - has in common that the compression hose over its entire circumference in cross section in essentially the same elongated profile body 10 is formed. - In contrast in the exemplary embodiments 7 to 10 described below, 12 and 13, the elongated profile body only on at least a partial circumference of the compression hose the hose jacket.

15 shows a combination of a compression hose with a swelling band. in addition to the example described below in FIG. 10. Here is one out of one thin-walled sheet metal or a film formed elongate holding means 16 flange-like contact surfaces are covered with a sealing tape 21.

The material for the profile body can be selected from a wide variety and preferably consists of a low-rot plastic material. Among themselves the profile body should be made of the same material or of materials with similar properties exist. The existing inner hose can also from a different material, in particular from a low-stretch material consist.

In the embodiments according to FIGS. 7 to 9, 12 and 13 there is only one Circumferential area of the hose jacket of the compression hose 1 from elongated Profile bodies 10, which for a cross-conveyance of injection material from the interior in the outside space is needed. So here too is an asymmetrical one Circumference distribution for the purpose of local injection of the building with injection material realized. For both the longitudinal and the transverse conveying of Optimizing injection material in such cases is the case with the exemplary embodiments according to Figures 7 to 9, 12 and 13, an inner tube 11 'provided its inner tube function, as it relates to the embodiments according to Figures 2 to 5, 11 and 14 has already been described, only in exercises the circumferential area occupied by the elongated profile bodies 10. On the remaining circumference of the inner tube 11 'forms the profile body complementary part of the hose jacket circumference, which in the with elongated Profile bodies 10 not occupied part usually no openings for Injection material passage to the outside.

The exemplary embodiment according to FIG. 12 also clarifies how the profile body 10 integrally connected with the inner tube 11 by extrusion 13, the same applies to the exemplary embodiment according to FIG. 13, in which among other things to create enlarged cross-sectional areas in the area of Gusset spaces 128, connecting webs radially attached to the inner tube 11 17 to the profile bodies 10 are provided.

10, the inner tube consists of two different peripheral zones, namely a foil-like peripheral zone 11A, which is occupied by elongated profile bodies 10, and one of one comparatively thicker material layer 11B existing zone of the inner tube, which on the outside with a sealing tape 21 from an independent sealing flat material, such as a swelling tape, is provided.

Finally, in Fig. 16 is an example of the connection of an inventive Injection hose shown with an injection or ventilation hose 18, via which injection material is pressed into the injection hose and injection material residues from the interior 12 after completion of a pressing process - in Case of need - can also be deducted to another pressing process to be able to connect. Likewise, such an outlet connection the venting of the injection hose at its injection material inflow opening opposite end can be used. A connecting sleeve 19 is provided with a through pipe 19A, which the Hose 18 with the central space 12A of an inner hose of a compression hose 1 fluidly connects. The through tube 19A is on the injection hose side surrounded by a cap 19B, which the compression hose 1 encompasses on its outer circumference in the mouth area. connecting ports 19C connect the interior of the through tube 19A with the Interior of the cap 19B. As a result, the mouth ends of the Gusset spaces 12B of the compression hose 1 also acted upon by injection material and easy to empty again. About emptying to facilitate in the gusset spaces 12B, these can - similar to the through tube 19A - by means of additional through pipes 19D (shown in dashed lines) be separately connected to the connecting sleeve 19.

In the embodiment according to FIG. 17, the linear contact surfaces 15 comparatively wider than in the other exemplary embodiments, because the profile body 10 have approximately flat surface pairs in this area. This improves protection against gussets 12B entering from outside Liquids or particles without significant leakage of injection material to complicate. To further support this effect, the gusset zone is the Gusset spaces 12B are much stronger than the corresponding gusset zone the outer contact surface. The pronounced polygons Cross-sectional shape with large outer walls creates enlarged sealing surfaces when mounting on a component surface to be sealed. Elongated, in particular continuous cavities 22 within the profile body 10 in their Longitudinal stretch not only save material, but also facilitate the valve function through compressibility of the profile body and the production of the connection openings 14 between the central space 12A and the gusset spaces 12B through the inner tube wall. Such a compression hose can be special inexpensive one-piece as a strand, consisting of an inner tube and four profile bodies, are produced, these five components being common uninterrupted Form contact areas with each other. Subsequently, the connection openings 14 and the openings 13 in a single operation getting produced. For this purpose, knife-like tools cut in the longitudinal direction of the hose running slits between adjacent profile bodies; there is the radial depth of penetration of the knife-like tools is large enough to also penetrate the Inner hose to cut slots that run parallel. So it arises aligned valves (double valves) with a delivery chamber between the inner 14 and outer 13 valves (slots). These funding chambers will be formed by the gusset spaces 12B. This arrangement and manufacturing method combines excellent valve action with effective longitudinal and Cross-conveying property with easy manufacture.

17 to 20 and 22 are enlarged contact areas to the subsoil that will become part of a future structural joint enlarges a substantially square outer periphery. With the compression hoses 17 to 20 are the sealing and contact surfaces 15 of the adjacent profile body 10 each in the middle of an outer surface. The connecting openings 14 penetrating the inner tube 11 between the central space 12A and the gusset spaces 12B consist of short ones Slits, which are shown in dashed lines in Figures 17 to 20. If necessary can the slit-shaped one behind the other extending in the longitudinal direction of the hose Openings 14 form predetermined breaking points that are particularly rapid and Allow extensive discharge of injection material when pressing.

The special feature of the embodiment in FIG. 18 is that elongated Cavities 22 within the profile body 10, in particular cavities with a constant cross-sectional area is provided along the compression hose extension are there when injecting injection material into the to be sealed Cavities allow the openings 13 to be along adjacent Open profile body 10 with greater ease because the profile body 10 as a whole seen compressible through the cavities 22.

The embodiments according to FIGS. 19, 20 and 6 are designed in a similar way. However, in both cases the cross sections of the cavities 22 are comparative smaller cross section in relation to the profile body 10. This brings with it undiminished functionality a considerably greater resistance against damage.

Another difference from Fig. 18 is that the mutual contact surfaces 15 between adjacent profile bodies designed essentially flat are so that the contact length in the exit direction of the injection material is larger than in the previously described embodiments.

20, the openings 13 between adjacent profile bodies 10 are uninterrupted, is in the profile hose according to FIG. 19 during the extrusion of the profile is neither an opening 13 nor openings 14 provided. These are only subsequently created by intermittent slitting brought in from the outside using knife-like tools. In simple Cut an opening 13 and below with every knife-like tool the adjacent opening 14 is created after the knife-like Tool has completely penetrated the gusset space 12B. As a result, the slit-shaped ones are aligned Openings 13 and 14 with each other. - Have practical trials shown that despite this very simple manufacturing method, the pressing of Injection material is possible with great ease, without having to set in concrete of such a compression hose cement milk in the gusset spaces 12B or Central room penetrates 12A. Even if multiple gusset spaces 12B is blocked the effectiveness of the grouting hose is not significantly impaired. On Blocking the central room 12A is due to the two in a row arranged valves (valve level 13 and valve level 14) practically excluded. Groove-shaped recesses in the longitudinal direction of the hose, like the concave ones Surface areas in the outer contour of the hose create cavities 13A to the ground on which the compression hose 1 is placed on the building joint becomes. Injecting agent can flow in particularly easily here, since the injection material receives a first cavity outside the compression hose, into which it can penetrate relatively easily. Such a cavity also leads to a simplified "breathing" of the injection hose when injecting, d. H. to a easier opening and, if necessary, reclosing of the neighboring ones Opening 13.

In the exemplary embodiment according to FIG. 20, the special feature is realized, moreover, that the gusset spaces 12B at their interface with the inner tube 11 have a central elongated recess 12C. These wells are used for one of the leadership of the knife-like slot tool in the manufacture of Openings 13 and / or the openings 14. On the other hand, the Wells 12C the emptying of a compression hose under vacuum simplified, since the vacuum is conveniently only at the central room 12A, but is not applied to the gusset spaces 12B.

The ability to be emptied again and the readiness to inject injection material again there is a further advantage of compression hoses according to the invention.

While in the embodiment according to FIG. 21B (right half of the picture) the neighboring ones Profile body 10 immediately with the formation of linear openings 13 touch each other, Fig. 21A (left half of the image) shows an alternative Embodiment according to which mutually spacable sealing and contact surfaces 15A and therefore openings 13 each between a profile body 10 and an adjacent outer wall surface of the hose 11 are provided are.

The embodiment according to FIG. 6 adjusts in comparison to the embodiment Fig. 1 is a peculiarity that the interior 12 no gusset spaces on and the profile body 10 with the elongated already shown in Figures 18 to 20 Cavities 22 are provided. The profile body 10 are in their radially inner, d. H. in the area immediately adjacent to the interior 12 joined together along the entire length. The openings 13 in This area is only opened by intermittent slitting (into the interior 12 in) with one or more knives. These slots form one after the other arranged a perforation line, which can also be a predetermined breaking line, and are shown in broken lines in FIG. 6, as also in FIG. 19. Radially further out the slots are continuous as a longitudinal slot between adjacent ones Profiled bodies 10 are formed and preferably in the manufacture by extrusion from in, open. The sealing and contact surfaces 15 between the Interior 12 and the outer environment of the compression hose 1 are thus comparatively wide. Since the interior has no gusset spaces, that is Emptying again and multiple pressing comparatively easy.

22, the inner tube 11 is made of four plate or strip-shaped profile bodies 10 which surround the compression hose lend about a square outer cross-section and the one with the inner tube are formed in one piece. On their adjacent longitudinal edges, the Profile body 10 continuously or in sections to form openings 13 touch each other while the openings 14 previously in any way can be introduced into the inner tube 11. To this structure more to give mechanical hold, if necessary to keep shape, and the sealing function In the area of the openings 13, the openings can be influenced 13 covering additional profile body 10A can be provided.

In the embodiment according to FIG. 23 there is a special feature that the adjacent profile body 10 in the area of the sealing and contact surfaces 15 with in Labyrinth means 15A, 15B arranged in the longitudinal direction of the compression hose and 15C are equipped. 23 shows an example of three different labyrinth seals, which essentially consist of a round or polygonal cross-section Rib in the sealing surface of a profile body 10 and one with the rib in Cross-sectional shape-like groove in the area of the immediately adjacent contact surface 15 of the adjacent profile body are formed. Grip rib and groove into each other, only in the drawing for the sake of clarity separate lines are shown. In practice, the cross sections of The rib and groove correspond approximately. Such a maze not only increases the Tightness but protects the free ends of the strip-shaped profile body 10 before being moved radially against each other with loss of sealing effect can. A radial displacement of the sealing and contact surfaces can also be done with shorter, spaced labyrinth means be prevented.

LIST OF REFERENCE NUMBERS

1

A compression tube

10

profile body

10A

profile body

11

inner tube

11 '

inner tube

11A

hose zone

11B

hose zone

11C

Inner tube partition

12

inner space

12A

Central Region

12A '

Central subspace

12A "

Central subspace

12B

gores

12C

deepening

13

perforations

13A

cavity

14

openings

15

Sealing and contact surfaces

15A, 15B, 15C

labyrinth seals

16

holding means

16A

Riot leg

17

connecting web

18

Injection / vent hose

19

coupling sleeve

19A

Through pipe

19B

cap

19C

connecting ports

19D

Through pipe

21

sealing tape

22

cavities

Claims (27)

1. A compression tube for producing water-impermeable or only slightly water-permeable, gas-tight and/or friction-locking structural joints which occur in particular when using plastically deformable and hardening materials, such as concrete, comprising at least one tubular casing enclosing at least one interior space (12) for conveying injection material in the axial direction of the tube and transversely to the axial direction of the tube towards the outside of the interior space (12) and having apertures (13) which, for the transverse flow, fluidically connect the interior space (12) to the exterior space surrounding the compression tube (1) and having valve-type means which substantially seal the apertures (13) against the ingress of liquid or other materials into the interior space (12) and allow the passage of pressurised injection material from the at least one interior space (12) into the exterior space, wherein the tubular casing, over at least part of its circumference, comprises at least three elongate profiled elements (10, 10') extending in the axial direction of the tube and adjoining one another laterally in the circumferential direction of the tube and having similar mechanical properties, in particular similar cross-sections, characterised in that the compression tube is formed as a single strand by continuous extrusion and comprises a non-compressible or only slightly compressible, elastically extensible material, the valve-type means being formed by linear, spaceable sealing and contact surfaces (15) of the respective adjacent profiled elements (10, 10'), and in that resilient holding means are provided which hold the profiled elements (10, 10') against one another along their linear sealing and contact surfaces (15) when the injection material is not under pressure.
2. A compression tube according to claim 1, characterised in that the profiled elements (10) are connected to one another along portions of their sealing and contact surfaces (15), leaving slit-type apertures (13).
3. A compression tube according to claim 1 or 2, characterised in that at least one inner tube (11, 11'; 11A, 11B) is connected to the profiled elements (10, 10') over its outer wall surface.
4. A compression tube according to claim 3, characterised by openings (14) piercing the wall of the inner tube (11, 11'; 11A, 11B).
5. A compression tube according to either one of claims 3 and 4, characterised in that the profiled elements (10) alternatively form separable sealing and contact surfaces (15A) between the profiled elements (10) and the respective adjacent outer wall surface of the inner tube (11).
6. A compression tube according to any one of claims 1 to 5, characterised in that the interior space (12) comprises at least one central space (12A) and gusset spaces (12B) surrounding it.
7. A compression tube according to claim 6, characterised in that the gusset spaces are combined with the central space to form a common interior space.
8. A compression tube according to claim 6, characterised in that the central space is arranged on the inside and the gusset spaces are arranged on the outside of a provided inner tube.
9. A compression tube according to claim 7 or 8, characterised in that the central space (12A) or the gusset spaces (12B) or both are provided for longitudinally conveying injection material.
10. A compression tube according to any one of claims 1 to 9, characterised in that a holding means (16) is provided with a sealing strip (21) or is formed as a sealing strip.
11. A compression tube according to any one of claims 3 to 10, characterised in that the inner tube (11A, 11B) is provided with a sealing strip (21) on its circumferential surface not covered with profiled elements (10).
12. A compression tube according to any one of claims 1 to 11, characterised in that the profiled elements (10) are round or angular, or round and angular, in cross-section.
13. A compression tube according to claim 12, characterised in that individual profiled elements have a different cross-section from the remaining profiled elements (10).
14. A compression tube according to any one of claims 3 to 13, characterised in that an inner tube (11', 11A, 11B) acts as an inner tube only in a circumferential region covered with the elongate profiled elements (10).
15. A compression tube according to any one of claims 3 to 14, characterised by connecting pieces (17) for connecting the inner tube (11,11'; 11A, 11B) to the profiled elements (10, 10').
16. A compression tube according to any one of claims 1 to 15, characterised by elongate hollow spaces (22) inside the profiled elements (10).
17. A compression tube according to any one of claims 1 to 16, characterised by a substantially planar formation of the contact surfaces (15).
18. A compression tube according to any one of claims 1 to 17, characterised by polygonal surfaces on the outside of the apertures (13).
19. A compression tube according to any one of claims 1 to 18, characterised in that openings (14) arranged in a row one behind the other in the inner tube (11) or apertures (13) form a linear predetermined breaking point.
20. A compression tube according to any one of claims 3 to 19, characterised in that the inner tube (11) is divided into central sub-spaces (12A' and 12A"), in particular an inner-tube partition is provided.
21. A compression tube according to any one of claims 1 to 20, characterised in that a connecting sleeve (19) for a tube end is provided with distributing means for the injection medium, i.e. with a through pipe (19A), and connecting openings (19C) or through pipes (19A and 19D) so that all the sub-spaces, i.e. the central and gusset spaces of the interior space (12), can be filled with injection medium from the front end of the tube or can be evacuated.
22. A compression tube according to any one of claims 1 to 21, characterised in that the sealing and contact surfaces (15) between adjacent profiled elements are provided with labyrinth means (15A; 15B; 15C) which increase tightness or offer protection against radial slippage or both.
23. A compression tube according to any one of claims 1 to 22, characterised in that the compression tube, on its outer surface in the region of the apertures (13), has inwardly inclined regions extending in the longitudinal direction of the tube, such as channels, grooves, concave outer wall surfaces and the like, which form an outer elongate hollow space (13A) when the respective region of the compression tube is placed against a foundation.
24. A compression tube according to claim 7, characterised in that groove-type recesses (12C) are formed within the gusset spaces (12B) in the region of openings (14) penetrating the wall of an inner tube (11).
25. A compression tube according to any one of claims 1 to 24, characterised by mutually aligned inner and outer valves, i.e. the connecting openings (14) and apertures (13), including the valve-type means.
26. A method of manufacturing a compression tube according to claim 25, characterised in that the connecting openings (14) and the apertures (13) are manufactured in a single working process.
27. A method according to claim 26, characterised by subsequent intermittent slitting of an extruded profile from the outside by means of blade-type tools for manufacturing the connecting openings (14) and apertures (13).

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