DE3508664C2 - Connection coupling for prefabricated diaphragm walls - Google Patents

Connection coupling for prefabricated diaphragm walls

Info

Publication number
DE3508664C2
DE3508664C2 DE3508664A DE3508664A DE3508664C2 DE 3508664 C2 DE3508664 C2 DE 3508664C2 DE 3508664 A DE3508664 A DE 3508664A DE 3508664 A DE3508664 A DE 3508664A DE 3508664 C2 DE3508664 C2 DE 3508664C2
Authority
DE
Germany
Prior art keywords
prefabricated diaphragm
connection coupling
prefabricated
diaphragm walls
connecting pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE3508664A
Other languages
German (de)
Other versions
DE3508664A1 (en
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.)
Ed Zueblin AG
Original Assignee
Ed Zueblin AG
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
Priority claimed from DE19843430789 external-priority patent/DE3430789A1/en
Application filed by Ed Zueblin AG filed Critical Ed Zueblin AG
Priority to DE3508664A priority Critical patent/DE3508664C2/en
Publication of DE3508664A1 publication Critical patent/DE3508664A1/en
Application granted granted Critical
Publication of DE3508664C2 publication Critical patent/DE3508664C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/16—Arrangement or construction of joints in foundation structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/06—Restraining of underground water
    • E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
    • E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
    • E02D19/185—Joints between sheets constituting the sealing aprons
    • 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
    • E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Joining Of Building Structures In Genera (AREA)

Description

Das Hauptpatent DE-PS 34 30 789 bezieht sich auf ein Verfahren und eine Verbindungskupplung zur Durchführung des Verfahrens zum Verbinden von Membranabschnitten in Schlitzwänden. An den senkrechten Membranberandungen sind durchgehend geschlitzte Rohre als Verbindungselemente angebracht, die beim Einbringen benachbarter Membrane ineinandergeschoben werden. Die Innenräume zwischen den Profilrohren werden dabei entweder über eine schlauchförmige Membran frei von Dichtmaterial gehalten, oder im nachhinein gespült und gereinigt. Zur dichten Verbindung der Rohre untereinander werden unterschiedliche Möglichkeiten der Schweißung oder Verklebung beschrieben, wie z. B. das Verschweißen der Kontaktflächen mit einem Schweißgerät, mit Glimmschnüren oder wie in der Zusatzanmeldung P 35 03 542.0 dargestellt, durch elektrisch aufheizbare Drähte.The main patent DE-PS 34 30 789 relates to a method and a connection coupling for performing the Method for connecting membrane sections in diaphragm walls. On the vertical Membrane borders are continuously slotted tubes as connecting elements attached, which are pushed together when inserting adjacent membrane become. The interiors between the profile tubes are either over a tubular membrane kept free of sealing material, or afterwards rinsed and cleaned. For the tight connection of the pipes to each other different ways of welding or gluing are described, such as e.g. B. welding the contact surfaces with a welding machine with Glow cords or as shown in additional application P 35 03 542.0 electrically heated wires.

Eine vorteilhafte Erweiterung findet das Verfahren bei der Anwendung von Fertigteil- Schlitzwandabschnitten, die in dem im Hauptpatent beschriebenen Verfahrensschritten untereinander verbunden werden.The process finds an advantageous extension when using precast Diaphragm wall sections that are described in the main patent Process steps are interconnected.

Bisher sind bei der Verwendung von Fertigteilen zur Herstellung von Schlitzwänden lediglich Methoden bekannt, bei denen die Kontaktflächen von Steckverbindungen mechanisch gegeneinandergedrückt werden, die aber keine homogene Verbindung, z. B. durch Verschweißen der Steckelemente untereinander, erlauben. Somit sind solche lediglich gestreckten Verbindungen nicht diffusionsdicht.So far, when using prefabricated parts for the production of diaphragm walls only known methods in which the contact surfaces of plug connections mechanically pressed against each other, but which is not a homogeneous connection, e.g. B. by welding the plug elements together, allow. So there are only straight connections not diffusion-tight.

Die erfindungsgemäße Verbindungskupplung nach dem Patentanspruch löst die Aufgabe, Fertigteilelemente diffusionsdicht zu verbinden. Dies erfolgt durch Einbau von ineinandersteckbaren geschlitzten Rohren, vorzugsweise aus HDPE, die nach Ausräumen des Innenraumes miteinander verschweißt werden. Alternativ ist auch das Verfahren nach Anspruch 1 des Hauptpatentes möglich, bei dem der Innenraum der Rohre durch eine schlauchförmige Membran von Dichtmaterial freigehalten wird. An Stelle der Membran, an die das Verbindungsrohr angeschweißt wird, verfügt das äußere geschlitzte Verbindungsrohr über Anker, mit denen das Verbindungsrohr bündig in die eine Stirnseite des Schlitzwandfertigteiles einbetoniert wird. Am inneren geschlitzten Verbindungsrohr tritt an Stelle der Membran eine Dichtlasche, die über Ankerbänder verfügt. Diese Dichtlasche wird in die andere Stirnseite des Schlitzwandfertigteiles bei der Herstellung desselben einbetoniert.The connection coupling according to the invention according to the claim solves the task  Precast elements to connect diffusion-tight. This is done by installing interlocking slotted tubes, preferably made of HDPE, according to Clear the interior to be welded together. Alternative is too the method of claim 1 of the main patent possible, in which the interior the pipes are kept free of sealing material by a tubular membrane. Instead of the membrane to which the connecting pipe is welded the outer slotted connecting tube via anchors with which the Connecting pipe flush in one end of the prefabricated diaphragm wall is concreted. On the inner slotted connecting pipe, the Membrane a sealing tab that has anchor bands. This sealing tab is in the other end of the diaphragm wall part during manufacture concreted in the same.

Mit der erfindungsgemäßen Verbindungskupplung ist eine durchgehend dichte Schweißverbindung der Dichtungselemente zwischen den Fertigteilabschnitten erstmals gegeben. Damit sind dauerhaft dichte Fertigteilschlitzwände herstellbar.With the connection coupling according to the invention is a completely tight Welded connection of the sealing elements between the precast sections given for the first time. This means that permanently sealed prefabricated slot walls can be produced.

Die Erfindung wird anhand zweier, in den Fig. 1 und 2 dargestellten, Ausführungsbeispielen näher erläutert. Es zeigt in schematischer Darstellung:The invention is explained in more detail using two exemplary embodiments shown in FIGS. 1 and 2. It shows in a schematic representation:

Fig. 1 einen Querschnitt durch eine Fertigteilschlitzwand, Fig. 1 shows a cross section through a finished part trench wall,

Fig. 2 einen Detailquerschnitt der erfindungsgemäßen Vorrichtung. Fig. 2 shows a detailed cross section of the device according to the invention.

Fig. 1 zeigt die innerhalb der Schlitzwandberandungen 1.1 und 1.2 eingestellte Schlitzwandfertigteile 3, die abschnittsweise in die Stützsuspension 2 eingestellt werden. An den Stirnseiten 12 der Fertigteilabschnitte 3 sind die erfindungsgemäßen Vorrichtungen zur Herstellung einer durchgehend dichten Verbindung der Fertigteilwandabschnitte 3 untereinander in die Schlitzwandfertigteile 3 eingebaut. Die Vorrichtung besteht aus einem einbetonierten äußeren geschlitzten Verbindungsrohr 4, welches an der Stirnseite 12.1 mit Ankern 7 im Beton festgehalten ist und aus einem inneren geschützten Verbindungsrohr 8, das mit einer Dichtlasche 5 und Ankerbändern 10 im benachbarten Stirnseitenbereich 12.2 im Beton des Schlitzwandabschnittes 3 verankert ist. Fig. 1 shows the inside of the trench wall boundaries 1.1 and 1.2 adjusted slitboard finished parts 3, which are sectionally set in the support Suspension 2. Devices of the invention for manufacturing a continuous sealed connection of the prefabricated wall sections 3 are mutually installed in the trench wall finished parts 3 on the end faces 12 of the panel portions. 3 The device consists of a concreted outer slotted connecting pipe 4 , which is held on the end face 12.1 with anchors 7 in the concrete and an inner protected connecting pipe 8 which is anchored in the concrete of the diaphragm wall section 3 with a sealing flap 5 and anchor bands 10 in the adjacent end face area 12.2 .

Die Herstellung der Schweißverbindung 13 an den Kontaktflächen 38 und 39, wie in Fig. 2 dargestellt, erfolgt nach Freispülen des Innenraumes 11, z. B. mit Hilfe einer im Innenraum verfahrbaren Schweißvorrichtung oder durch andere Verbindungsvorrichtungen, wie im Hauptpatent P 34 30 789.3 erläutert.The production of the weld joint 13 at the contact surfaces 38 and 39 as shown in Fig. 2, is carried out by flushing the interior space 11, eg. B. with the help of a movable welding device in the interior or by other connecting devices, as explained in the main patent P 34 30 789.3.

Claims (1)

Verbindungskupplung nach Anspruch 7 des Hauptpatents DE 34 30 789, wobei anstelle der zu verbindenden Membranabschnitte Schlitzwandfertigteile vorgesehen sind, dadurch gekennzeichnet, daß das äußere Verbindungsrohr (4) über Anker (7) an der Außenberandung verfügt, daß das innere Verbindungsrohr (8) mit einer Dichtlasche (9) verbunden ist und daß das äußere Verbindungsrohr (4) in die eine Stirnseite des jeweiligen Schlitzwandfertigteiles (3) und die Dichtungslasche (9) in die andere Stirnseite des Schlitzwandfertigteiles (3) einbetoniert sind.Connecting coupling according to claim 7 of the main patent DE 34 30 789, wherein instead of the membrane sections to be connected, prefabricated diaphragm parts are provided, characterized in that the outer connecting pipe ( 4 ) has anchors ( 7 ) on the outer edge that the inner connecting pipe ( 8 ) with a Sealing strap ( 9 ) is connected and that the outer connecting tube ( 4 ) in one end face of the respective prefabricated diaphragm wall part ( 3 ) and the sealing tab ( 9 ) in the other end face of the prefabricated diaphragm wall part ( 3 ) are concreted.
DE3508664A 1984-08-22 1985-03-12 Connection coupling for prefabricated diaphragm walls Expired - Fee Related DE3508664C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3508664A DE3508664C2 (en) 1984-08-22 1985-03-12 Connection coupling for prefabricated diaphragm walls

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843430789 DE3430789A1 (en) 1984-08-22 1984-08-22 Method of placing and connecting diaphragms in trench walls and apparatus for carrying out the method
DE3508664A DE3508664C2 (en) 1984-08-22 1985-03-12 Connection coupling for prefabricated diaphragm walls

Publications (2)

Publication Number Publication Date
DE3508664A1 DE3508664A1 (en) 1986-09-18
DE3508664C2 true DE3508664C2 (en) 1994-06-23

Family

ID=25824051

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3508664A Expired - Fee Related DE3508664C2 (en) 1984-08-22 1985-03-12 Connection coupling for prefabricated diaphragm walls

Country Status (1)

Country Link
DE (1) DE3508664C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101974901A (en) * 2010-10-22 2011-02-16 天津深基工程有限公司 Lateral movably-connecting combined joint pipe of diaphram wall

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE237391C (en) *
US1193033A (en) * 1916-08-01 llewellyn
US4601615A (en) * 1983-02-22 1986-07-22 Finic, B.V. Environmental cut-off for deep excavations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101974901A (en) * 2010-10-22 2011-02-16 天津深基工程有限公司 Lateral movably-connecting combined joint pipe of diaphram wall
CN101974901B (en) * 2010-10-22 2011-11-16 天津深基工程有限公司 Lateral movably-connecting combined joint pipe of diaphram wall

Also Published As

Publication number Publication date
DE3508664A1 (en) 1986-09-18

Similar Documents

Publication Publication Date Title
DE3703066C2 (en)
DE3125166C3 (en) Method for producing a re-tensionable compression anchor
DE4019899C1 (en)
DE3430789A1 (en) Method of placing and connecting diaphragms in trench walls and apparatus for carrying out the method
CH671819A5 (en)
DE3508664C2 (en) Connection coupling for prefabricated diaphragm walls
DE3042073C2 (en) tube
DE2844695A1 (en) METHOD OF MANUFACTURING AN ELECTROCHEMICAL CELL OR BATTERY
WO2019042909A1 (en) Method for welding electrical conductors by means of ultrasound and ultrasonic metal welding device
DE3933490C2 (en) Connection of prefabricated reinforced concrete elements
DE4023542A1 (en) Joint for plastic lining of concrete structures - has edge clips over lug and sealing weld, made using clamping strip with 2 retaining beads
DE3534174C2 (en)
DE3444681C2 (en)
DE10108907C2 (en) Single-profile bridging device and method for the remediation of such
DE3145924C2 (en) Butt joint of reinforcing bars
CH715401A2 (en) Device for preventing the transmission of sound through an opening or a production-related duct in a wall and a method for soundproof sealing of an opening or a production-related duct in a wall.
DE3834731C2 (en)
DE4139629A1 (en) SEALING DEVICE FOR JOINTS BETWEEN COMPONENTS
DE19652712C1 (en) Connection of double tubes with internally located conduit tube
DE3444077C2 (en) Process and shuttering tube for diaphragm wall production
EP1111207A2 (en) Method for manufacturing an absorption silencer
DE3137852C2 (en) Process for erecting and assembling a building consisting of precast concrete elements
EP3336400B1 (en) Lead feedthrough with elastomer body
DE2618318A1 (en) Sheet metal segmented silo tank - has interlocking deformable segment plate edge folds for site assembly
DE1559174C (en) Polygonal container in which the side wall consists of plate-shaped structural elements made of reinforced concrete

Legal Events

Date Code Title Description
AF Is addition to no.

Ref country code: DE

Ref document number: 3430789

Format of ref document f/p: P

8110 Request for examination paragraph 44
AF Is addition to no.

Ref country code: DE

Ref document number: 3430789

Format of ref document f/p: P

AF Is addition to no.

Ref country code: DE

Ref document number: 3430789

Format of ref document f/p: P

D2 Grant after examination
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8340 Patent of addition ceased/non-payment of fee of main patent