EP0089403A1 - Flexible concrete segment lining - Google Patents

Flexible concrete segment lining Download PDF

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Publication number
EP0089403A1
EP0089403A1 EP82110195A EP82110195A EP0089403A1 EP 0089403 A1 EP0089403 A1 EP 0089403A1 EP 82110195 A EP82110195 A EP 82110195A EP 82110195 A EP82110195 A EP 82110195A EP 0089403 A1 EP0089403 A1 EP 0089403A1
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EP
European Patent Office
Prior art keywords
concrete
elements
concrete segment
resilience
segment expansion
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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
EP82110195A
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German (de)
French (fr)
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EP0089403B1 (en
Inventor
Peter Dipl.-Ing. Stephan
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Bergwerksverband GmbH
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Bergwerksverband GmbH
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Publication of EP0089403A1 publication Critical patent/EP0089403A1/en
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Publication of EP0089403B1 publication Critical patent/EP0089403B1/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/08—Lining with building materials with preformed concrete slabs
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/05—Lining with building materials using compressible insertions

Definitions

  • the invention relates to a concrete segment expansion for underground mining and tunnel construction in open and closed construction with, arranged between the concrete segments, made of concrete mortar, compliance elements.
  • resilience elements which essentially consist of a tubular element which can be folded by pressure between two steel plates.
  • Such compliance elements are also particularly sensitive to thrust and fluctuate very heavily in load absorption during compliance.
  • the invention has set itself the task of creating a concrete segment expansion, in particular for underground use, which, taking into account the criteria specific to the concrete segment expansion, entails the adjustable flexibility required for underground use, the flexibility element in particular being designed to be unaffected by shear movements of the concrete segments .
  • a particular advantage of the invention can be seen in the fact that the tubes are arranged at a distance from one another and one above the other in the resilience elements.
  • the setting force of the resilience elements can be determined as a function of the response strength of the concrete, the number of pipes, the diameter and the pipe wall thickness.
  • the technical progress of the invention is essentially due to the fact that the elasticity of the expansion can be matched to the local conditions.
  • the required setting force can be influenced by the response strength of the filling mortar, by the number of pipes, pipe diameter and pipe wall thickness.
  • the elasticity element begins to yield when the specified setting force is exceeded. First the filling mortar breaks, then the pipes are deformed until a flexibility of approx. 50% of the overall height of the flexibility elements is reached. The pipe deformation is superimposed by the breaking of the mortar into smaller and smaller particles, so that the working characteristic curve becomes more uniform.
  • the concrete segment expansion according to the invention consists of a number of concrete segments 1 with the type of arch or ring expansion, with resilience elements 2 provided between each two concrete segments 1.
  • Resilience element made of concrete mortar of a certain composition has a number of pipes 3.
  • the number of tubes which are arranged at a distance a from one another and at a distance b from one another is arbitrary and depends only on the required adjusting force of the resilience element 2.
  • the resilience element 2 In the embodiment shown in FIG. 1, three rows with tubes 2 are provided within the resilience element 2, the rows being offset from one another.
  • the adjusting force of the resilience element 2 is also dependent on the pipe diameter c and the pipe wall d.
  • the resilience element 2 In order to secure the resilience element 2 against pushing movement of the concrete segments 1, the resilience element 2 is provided with pins 4 and the concrete segments 1 with corresponding recesses 5 according to the exemplary embodiments shown in FIGS. 1 and 2.
  • the tubes 3 can be filled with fillers, the strength of the filler being variable depending on the filler entering the tubes 3 and depending on the diameter and the thickness of the tube wall.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

1. A concrete panel support for underground mining and tunnelling, in arch or closed-circle configuration, with yielding elements made of concrete mortar arranged between said panels, characterized in that tubes (3) are arranged vertically to the roadside (7) in said yielding elements.

Description

Die Erfindung betrifft einen Betonsegmentausbau für den untertägigen Berg- und Tunnelbau in offener und geschlossener Bauweise mit, zwischen den Betonsegmenten angeordneten, aus Betonmörtel hergestellten, Nachgiebigkeitselementen.The invention relates to a concrete segment expansion for underground mining and tunnel construction in open and closed construction with, arranged between the concrete segments, made of concrete mortar, compliance elements.

Die wesentlichen Vorteile des obengenannten Betonsegmentausbaus, insbesondere im untertägigen Bergbau, bestehen in seiner Wirtschaftlichkeit und dem hohen Ausbauwiderstand. Schwierigkeiten bestehen dagegen in der bekannter Weise geringen Verformungsfähigkeit des Betons, der man jedoch mit Hilfe der Verwendung von Nachgiebigkeitselementen abzuhelfen versucht hat.The main advantages of the above-mentioned concrete segment expansion, especially in underground mining, are its economy and high resistance to expansion. On the other hand, difficulties exist in the known manner of low deformability of the concrete, which however has been attempted to be remedied with the use of resilience elements.

Es sind bereits Quertschlagen aus Betonmörtel verschiedener Festigkeiten als Nachgiebigkeitselemente bekannt. Derartige Nachgiebigkeitselemente sind jedoch äußerst empfindlich gegen Schubbewegungen, was die Anwendung in der Firste des untertägigen Strekkenausbaus besonders in Frage stellt.Cross-cuts from concrete mortar of various strengths are already known as resilience elements. Such compliance elements are, however, extremely sensitive to shear motion what particularly questions the application in the roof of the underground track extension.

Neben den obengenannten Nachgiebigkeitselementen aus Betonmörtel sind Nachgiebigkeitselemente bekannt, die im wesentlichen aus einem zwischen zwei Stahlplatten durch Druck faltbaren rohrartigen Element bestehen. Auch derartige Nachgiebigkeitselemente sind besonders empfindlich gegen Schub und in der Lastaufnahme während der Nachgiebigkeit sehr schwankend.In addition to the above-mentioned resilience elements made of concrete mortar, resilience elements are known which essentially consist of a tubular element which can be folded by pressure between two steel plates. Such compliance elements are also particularly sensitive to thrust and fluctuate very heavily in load absorption during compliance.

Demgegenüber hat sich die Erfindung die Aufgabe gestellt, einen Betonsegmentausbau, insbesondere zur untertägigen Verwendung zu schaffen, der unter Berücksichtigung der dem Betonsegmentausbau eigenen Kriterien, die für den Untertageeinsatz erforderliche einstellbare Nachgiebigkeit mit sich bringt, wobei insbesondere das Nachgiebigkeitselement unanfällig gegen Schubbewegungen der Betonsegmente ausgebildet ist.In contrast, the invention has set itself the task of creating a concrete segment expansion, in particular for underground use, which, taking into account the criteria specific to the concrete segment expansion, entails the adjustable flexibility required for underground use, the flexibility element in particular being designed to be unaffected by shear movements of the concrete segments .

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß in den Nachgiebigkeitselementen senkrecht zum Stoß verlaufend Rohre vorgesehen sind.This object is achieved in that pipes are provided in the resilience elements perpendicular to the joint.

Ein besonderer Vorteil der Erfindung ist darin zu sehen, daß die Rohre in den Nachgiebigkeitselementen in Abstand nebeneinander und übereinander angeordnet sind.A particular advantage of the invention can be seen in the fact that the tubes are arranged at a distance from one another and one above the other in the resilience elements.

Weiterhin erweist es sich als vorteilhaft im Rahmen der Erfindung, daß die Einstellkraft der Nachgiebigkeitselemente in Abhängigkeit von der Ansprechfestigkeit des Betons, durch die Anzahl der Rohre, durch den Durchmesser und die Rohrwandstärke bestimmbar ist.Furthermore, it proves to be advantageous within the scope of the invention that the setting force of the resilience elements can be determined as a function of the response strength of the concrete, the number of pipes, the diameter and the pipe wall thickness.

Weitere Vorteile der Erfindung sind in den Unteransprüchen näher beschreiben.Further advantages of the invention are described in more detail in the subclaims.

Der technische Fortschritt der Erfindung ist im wesentlichen darin begründet, daß die Elastizität des Ausbaus abstimmbar ist auf die örtlichen Verhältnisse. Die erforderliche Einstellkraft ist durch die Ansprechfestigkeit des Füllmörtels, durch die Rohranzahl, Rohrdurchmesser und Rohrwandstärke beeinflußbar. Beim Überschreiten der vorgegebenen Einstellkraft beginnt das Nachgiebigkeitselement nachzugeben. Dabei bricht zunächst der Verfüllmörtel anschließend werden die Rohre verformt bis ca. eine Nachgiebigkeit von 50% der Bauhöhe der Nachgiebigkeitselemente erreicht ist. Die Rohrverformung wird von dem Zerbrechen des Mörtels in immer kleinere Teilchen überlagert, so daß eine Vergleichmäßigung der Arbeitskennlinie eintritt.The technical progress of the invention is essentially due to the fact that the elasticity of the expansion can be matched to the local conditions. The required setting force can be influenced by the response strength of the filling mortar, by the number of pipes, pipe diameter and pipe wall thickness. The elasticity element begins to yield when the specified setting force is exceeded. First the filling mortar breaks, then the pipes are deformed until a flexibility of approx. 50% of the overall height of the flexibility elements is reached. The pipe deformation is superimposed by the breaking of the mortar into smaller and smaller particles, so that the working characteristic curve becomes more uniform.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden näher erläutert. Es zeigen:

  • Fig. 1 eine teilweise Draufsicht des erfindungsgemäßen Betonsegmentausbaus mit einem teilweise geschnitten wiedergegebenen Nachgiebigkeitselement, und
  • Fig. 2 einen Schnitt nach den Linien A-A in Fig. l.
An embodiment of the invention is shown in the drawings and is explained in more detail below. Show it:
  • Fig. 1 is a partial plan view of the concrete segment expansion according to the invention with a resilience element shown partially in section, and
  • 2 shows a section along the lines AA in FIG.

Der erfindungsgemäße Betonsegmentausbau besteht nach Art des Bogen- oder Ringausbaus aus einer Anzahl Betonsegmente 1, mit zwischen jeweils zwei Betonsegmenten 1 vorgesehenen Nachgiebigkeitselementen 2. Wie aus der teilweise wiedergegebenen und geschnittenen Darstellung in Fig. 1 zu entnehmen ist, weist das in der Draufsicht rechteckig geformte Nachgiebigkeitselement aus Betonmörtel bestimmter Zusammensetzung eine Anzahl Rohre 3 auf. Die Anzahl der Rohre die in einem Abstand a voneinander und in einem Abstand b übereinander angeordnet sind, ist beliebig und hängt nur von der geforderten Einstellkraft des Nachgiebigkeitselementes 2 ab.The concrete segment expansion according to the invention consists of a number of concrete segments 1 with the type of arch or ring expansion, with resilience elements 2 provided between each two concrete segments 1. As can be seen from the partially reproduced and sectioned illustration in FIG Resilience element made of concrete mortar of a certain composition has a number of pipes 3. The number of tubes which are arranged at a distance a from one another and at a distance b from one another is arbitrary and depends only on the required adjusting force of the resilience element 2.

In dem in Fig. 1 dargestellten Ausführungsbeispiel sind innerhalb des Nachgiebigkeitselementes 2 drei Reihen mit Rohren 2 vorgesehen wobei die Reihen gegeneinander versetzt angeordnet sind. Die Einstellkraft des Nachgiebigkeitselementes 2 ist weiterhin von dem Rohrdurchmesser c und der Rohrwandung d abhängig. Um eine Sicherung des Nachgiebigkeitselementes 2 gegen Schubbewegung der Betonsegmente 1 zu sichern, ist das Nachgiebigkeitselement 2 nach dem in den Fig. 1 und 2 gezeigten Ausführungsbeispielen mit Zapfen 4 und die Betonsegmente 1 mit entsprechenden Ausnehmungen 5 versehen.In the embodiment shown in FIG. 1, three rows with tubes 2 are provided within the resilience element 2, the rows being offset from one another. The adjusting force of the resilience element 2 is also dependent on the pipe diameter c and the pipe wall d. In order to secure the resilience element 2 against pushing movement of the concrete segments 1, the resilience element 2 is provided with pins 4 and the concrete segments 1 with corresponding recesses 5 according to the exemplary embodiments shown in FIGS. 1 and 2.

Um zu vermeiden, daß der durch Druckeinwirkung auf den Ausbau zerbrechende Mörtel von Nachgiebigkeitselementen 2, die in der Firste einer Strecke angeordnet sind, in die Strecke herunterfällt, ist es vorteilhaft, die entsprechenden Nachgiebigkeitselemente 2 mit einer Abdeckplatte 6, beispielsweise einer Wellblechabdeckung zu versehen.In order to avoid that the mortar, which breaks due to pressure on the expansion, of compliance elements 2, which are arranged in the roof of a route, falls into the route, it is advantageous to provide the corresponding compliance elements 2 with a cover plate 6, for example a corrugated sheet cover.

Zur Erhöhung der Einstellkraft der Nachgiebigkeitselemente 2 können die Rohre 3 mit Füllstoffen verfüllt werden, wobei die Festigkeit des Füllstoffs in Abhängigkeit von den die Rohre 3 eingebenden Füllstoffs, und in Abhängigkeit von Durchmesser und der Stärke der Rohrwandung variierbar ist.To increase the setting force of the resilience elements 2, the tubes 3 can be filled with fillers, the strength of the filler being variable depending on the filler entering the tubes 3 and depending on the diameter and the thickness of the tube wall.

  • 1 Betonsegmente1 concrete segments
  • 2 Nachgiebigkeitselemente2 compliance elements
  • 3 Rohre3 tubes
  • a Abstanda distance
  • b Abstandb distance
  • c Durchmesserc diameter
  • d Wandstärked wall thickness
  • 4 Zapfen4 pins
  • 5 Ausnehmung5 recess
  • 6 Abdeckplatte6 cover plate
  • 7 Stoß7 push

Claims (8)

1. Betonsegmentausbau für den untertägigen Berg- und Tunnelbau in offener und geschlossener Bauweise mit zwischen den Betonsegmenten angeordneten, aus Betonmörtel hergestellten, Nachgiebigkeitselementen, dadurch gekenn-zeichnet, daß in den Nachgiebigkeitselementen (2) senkrecht zum Stoß (7) verlaufend Rohre (3) vorgesehen sind.1. Concrete segment expansion for underground mining and tunnel construction in open and closed construction with flexible elements made of concrete mortar arranged between the concrete segments, characterized in that pipes (3) running perpendicular to the joint (7) in the flexible elements (2) are provided. 2. Betonsegmentausbau nach Anspruch 1, dadurch gekennzeichnet, daß die Rohre (3) in den Nachgiebigkeitselementen (2) in Abstand (a, b) nebeneinander und übereinander angeordnet sind.2. Concrete segment expansion according to claim 1, characterized in that the tubes (3) in the resilience elements (2) at a distance (a, b) are arranged side by side and one above the other. 3. Betonsegmentausbau nach Anspruch 1, dadurch gekennzeichnet, daß die Länge der Rohre (3) auf die Stärke der Nachgiebigkeitselement (2) abgestimmt ist.'3. Concrete segment expansion according to claim 1, characterized in that the length of the pipes (3) is matched to the strength of the resilient element (2). ' 4. Betonsegmentausbau nach Anspruch 1, dadurch gekennzeichnet, daß die Einstellkraft der Nachgiebigkeitselemente (2) in Abhängigkeit von der Ansprechfestigkeit des Betons und durch die Anzahl der Rohre (3) bestimmbar ist.4. Concrete segment expansion according to claim 1, characterized in that the adjusting force of the resilience elements (2) depending on the response strength of the concrete and by the number of pipes (3) can be determined. 5. Betonsegmentausbau nach Anspruch 1, dadurch gekennzeichnet, daß die Einstellkraft der Nachgiebigkeitselemente (2) in Abhängigkeit von der Ansprechbarkeit des Betons durch den Rohrdurchmesser (c) und die Rohrwandstärke (d) bestimmbar ist.5. Concrete segment expansion according to claim 1, characterized in that the adjusting force of the resilience elements (2) depending on the responsiveness of the concrete by the pipe diameter (c) and the pipe wall thickness (d) can be determined. 6. Betonsegmenetausbau nach Anspruch 1, dadurch gekennzeichnet, daß die Rohre (3) mit Füllstoffen, beispielsweise Betonmörtel verschiedener Festigkeit, verfüllbar sind.6. Betonsegmenetausbau according to claim 1, characterized in that the pipes (3) with fillers, for example concrete mortar of different strength, can be filled. 7. Betonsegmentausbau nach Anspruch 1, dadurch gekennzeichnet, daß die Nachgiebigkeitselemente (2) zur formschlüssigen Verbindung mit den angrenzenden Segmenten (1) mit Zapfen (4) und/oder vergleichbaren mit den Segmenten (1) korrespondierenden Verbindungselementen versehen sind.7. Concrete segment expansion according to claim 1, characterized in that the resilience elements (2) for positive connection with the adjacent segments (1) with pins (4) and / or comparable to the segments (1) are provided with corresponding connecting elements. 8. Betonsegmentausbau nach Anspruch 1, dadurch gekennzeichnet, daß die Nachgiebigkeitselemente (2) mindestens im Firstbereich mit einer Abdeckplatte (6) versehbar sind.8. Concrete segment expansion according to claim 1, characterized in that the resilience elements (2) are at least in the ridge area with a cover plate (6) can be provided.
EP82110195A 1982-03-23 1982-11-05 Flexible concrete segment lining Expired EP0089403B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3210530A DE3210530C2 (en) 1982-03-23 1982-03-23 Resilient concrete segment support
DE3210530 1982-03-23

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Publication Number Publication Date
EP0089403A1 true EP0089403A1 (en) 1983-09-28
EP0089403B1 EP0089403B1 (en) 1985-10-09

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003678A1 (en) * 1990-02-07 1991-08-08 Neuero Stahlbau Gmbh & Co Arch for supporting roof of tunnel - is constructed from arch segments with compressible joints containing aerated clay
EP1564369A1 (en) * 2004-02-16 2005-08-17 Kalman Prof. Dr. Kovari Method and device for stabilising an underground broken out cavity
WO2006034675A1 (en) * 2004-09-29 2006-04-06 Kloeckner Reinhard Compressible concrete and method for producing the same
EP1762698A1 (en) * 2005-09-08 2007-03-14 Amberg Engineering AG Yielding element for an underground cavity
EP2042686A1 (en) * 2007-09-27 2009-04-01 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Elasticity element
WO2011069480A3 (en) * 2009-12-10 2012-06-28 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Tubbing works having an integrated flexible element
FR3021346A1 (en) * 2014-05-21 2015-11-27 Const Mecaniques Consultants CONSTRUCTION ELEMENT FOR THE PRODUCTION OF A TUNNEL, TUNNEL COMPRISING SUCH A ELEMENT AND METHODS OF MANUFACTURING SUCH A ELEMENT AND SUCH A TUNNEL
WO2016033236A1 (en) * 2014-08-27 2016-03-03 Burrell Mining Products, Inc. Ventilated mine roof support
US9347316B2 (en) 2012-08-30 2016-05-24 Burrell Mining Products, Inc. Telescopic mine roof support
US9903203B2 (en) 2014-08-27 2018-02-27 Burrell Mining Products, Inc. Ventilated mine roof support

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3844776C2 (en) * 1988-02-26 1993-03-11 Neuero Stahlbau Gmbh & Co., 4520 Melle, De Roof support for mining gallery
DE3806126A1 (en) * 1988-02-26 1989-09-07 Neuero Stahlbau Gmbh & Co CLOSED EXTENSION FOR IN PARTICULAR UNDERGROUND PIT ROUTES
DE3922047A1 (en) * 1989-07-05 1991-01-10 Hoesch Ag Shaft bell for tunnel - comprises sectional frames and supports with built-in expansion devices
DE4133267C2 (en) * 1991-10-08 1994-04-28 Linsingen Heintzmann Von Route expansion, especially for mining underground operations
AT406893B (en) * 1997-11-28 2000-10-25 Schubert Wulf Dipl Ing Dr DEVICE FOR MUTUAL SUPPORT OF TWO SEGMENTS OF A TUNNEL LINING DIVIDED IN THE CIRCUMFERENTIAL DIRECTION BY CONTRACTION JOINTS
DE202010013454U1 (en) 2010-09-23 2010-11-25 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Supporting construction for tunnel structures

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DE301200C (en) *
DE369695C (en) * 1923-07-31 Karl Walter Dipl Ing Reinforced concrete tunnel lining
FR593877A (en) * 1923-12-17 1925-09-01 Flexible mine coating
AT117579B (en) * 1927-11-25 1930-04-25 Karl Dr Ing Kabelac Device for sealing pits with a circular or similar cross-section that have been expanded by supporting bodies.
DE2101092B2 (en) * 1971-01-12 1977-08-18 Lütgendorf, Hans Otto, Dr.-Ing., 4370 Mari Mine roadway concrete arch support - has blocks to compress thickness at transitions between support segments round road perimeter
DE2510912B2 (en) * 1975-03-13 1979-05-10 Bauunternehmung E. Heitkamp Gmbh, 4690 Herne Method for building the lining of a bunker, in particular in underground mining and device for carrying out the method
DE3020673A1 (en) * 1979-05-31 1980-12-11 Johannes Petrus Antonius Roest Deep round underground gallery support - involves narrow peripheral zones more compressible than surrounding rock (NL 2.12.80)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE301200C (en) *
DE369695C (en) * 1923-07-31 Karl Walter Dipl Ing Reinforced concrete tunnel lining
FR593877A (en) * 1923-12-17 1925-09-01 Flexible mine coating
AT117579B (en) * 1927-11-25 1930-04-25 Karl Dr Ing Kabelac Device for sealing pits with a circular or similar cross-section that have been expanded by supporting bodies.
DE2101092B2 (en) * 1971-01-12 1977-08-18 Lütgendorf, Hans Otto, Dr.-Ing., 4370 Mari Mine roadway concrete arch support - has blocks to compress thickness at transitions between support segments round road perimeter
DE2510912B2 (en) * 1975-03-13 1979-05-10 Bauunternehmung E. Heitkamp Gmbh, 4690 Herne Method for building the lining of a bunker, in particular in underground mining and device for carrying out the method
DE3020673A1 (en) * 1979-05-31 1980-12-11 Johannes Petrus Antonius Roest Deep round underground gallery support - involves narrow peripheral zones more compressible than surrounding rock (NL 2.12.80)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003678A1 (en) * 1990-02-07 1991-08-08 Neuero Stahlbau Gmbh & Co Arch for supporting roof of tunnel - is constructed from arch segments with compressible joints containing aerated clay
EP1564369A1 (en) * 2004-02-16 2005-08-17 Kalman Prof. Dr. Kovari Method and device for stabilising an underground broken out cavity
WO2006034675A1 (en) * 2004-09-29 2006-04-06 Kloeckner Reinhard Compressible concrete and method for producing the same
EP1762698A1 (en) * 2005-09-08 2007-03-14 Amberg Engineering AG Yielding element for an underground cavity
EP2042686A1 (en) * 2007-09-27 2009-04-01 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Elasticity element
US8979434B2 (en) 2009-12-10 2015-03-17 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Tubbing lining having an integrated flexible element
WO2011069480A3 (en) * 2009-12-10 2012-06-28 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Tubbing works having an integrated flexible element
US9347316B2 (en) 2012-08-30 2016-05-24 Burrell Mining Products, Inc. Telescopic mine roof support
FR3021346A1 (en) * 2014-05-21 2015-11-27 Const Mecaniques Consultants CONSTRUCTION ELEMENT FOR THE PRODUCTION OF A TUNNEL, TUNNEL COMPRISING SUCH A ELEMENT AND METHODS OF MANUFACTURING SUCH A ELEMENT AND SUCH A TUNNEL
WO2015177463A3 (en) * 2014-05-21 2016-02-04 Constructions Mecaniques Consultants Construction element for creating a tunnel, tunnel comprising such an element and methods for constructing such an element and such a tunnel
US10774640B2 (en) 2014-05-21 2020-09-15 Agence Nationale Pour La Gestion Des Dechets Radioactifs Construction element for creating a tunnel, tunnel comprising such an element and methods for constructing such an element and such a tunnel
WO2016033236A1 (en) * 2014-08-27 2016-03-03 Burrell Mining Products, Inc. Ventilated mine roof support
US9611738B2 (en) 2014-08-27 2017-04-04 Burrell Mining Products, Inc. Ventilated mine roof support
US9903203B2 (en) 2014-08-27 2018-02-27 Burrell Mining Products, Inc. Ventilated mine roof support

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Publication number Publication date
DE3266863D1 (en) 1985-11-14
DE3210530C2 (en) 1984-01-05
DE3210530A1 (en) 1983-10-13
EP0089403B1 (en) 1985-10-09

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