EP0215243B1 - Dispositif pour appliquer au pistolet une couche capable de tenir sur des parois - Google Patents

Dispositif pour appliquer au pistolet une couche capable de tenir sur des parois Download PDF

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Publication number
EP0215243B1
EP0215243B1 EP86110403A EP86110403A EP0215243B1 EP 0215243 B1 EP0215243 B1 EP 0215243B1 EP 86110403 A EP86110403 A EP 86110403A EP 86110403 A EP86110403 A EP 86110403A EP 0215243 B1 EP0215243 B1 EP 0215243B1
Authority
EP
European Patent Office
Prior art keywords
sprayed
layer
supporting surface
supporting
wall
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 - Lifetime
Application number
EP86110403A
Other languages
German (de)
English (en)
Other versions
EP0215243A3 (en
EP0215243A2 (fr
Inventor
Heinz Wind
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.)
Philipp Holzmann AG
Original Assignee
Philipp Holzmann 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
Application filed by Philipp Holzmann AG filed Critical Philipp Holzmann AG
Priority to AT86110403T priority Critical patent/ATE57414T1/de
Publication of EP0215243A2 publication Critical patent/EP0215243A2/fr
Publication of EP0215243A3 publication Critical patent/EP0215243A3/de
Application granted granted Critical
Publication of EP0215243B1 publication Critical patent/EP0215243B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
    • E04G11/26—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like the sheathing of which consists of ribbons, endless aprons or the like, guided by driven rollers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/06—Implements for applying plaster, insulating material, or the like
    • E04F21/08—Mechanical implements
    • 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
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete

Definitions

  • the invention relates to a device for spraying a layer consisting of a setting-capable mixture of binder, additive and liquid onto walls, consisting of a pressure line leading the mixture to be sprayed on, from whose end directed towards the wall and movable over the wall, the mixture emerges and onto which Wall arrives, whereby at a distance from the wall corresponding to the thickness of the layer to be sprayed on, a formwork-like support surface is provided for the layer to be sprayed on, which is arranged to be movable - following the movements of the outlet end of the pressure line - the support surface through that facing the wall the sprayed-on layer of an endless flexible formlining is formed, which runs around at least two spaced-apart deflection elements.
  • This can be a device for applying plaster or mortar to building walls or e.g. according to AT-PS 197 851 from shotcrete or Torkret e.g. act on the walls of tunnel eruptions.
  • the binder can be lime and / or cement, in the latter case cement.
  • the mixture can also contain additives in the form of fibers or in the form of a solidification accelerator, e.g. Water glass included.
  • the liquid is generally water. Sand, gravel, grit or the like can be used as an additive.
  • a device for spraying a shotcrete layer on the wall of a tunnel excavation is known, for example, from the literature reference Tunnelbau 1978, Verlag uniqueauf Essen, article "Shotcrete in tunnel construction", page 204 ( Figure 7).
  • Such a device can be used, for example, in the mining new Austrian tunnel construction method.
  • concrete is sprayed onto the rock to be secured from a nozzle arranged at the outlet end of the pressure line with overpressure, high speed and at a specific spray angle and at a specific distance from the application surface for immediate protection after cavity breakouts.
  • the additives in the concrete should give it an adhesive effect so that it should stick to the wall after impact, but this is only partially successful.
  • the rebound not only reduces the quality of the concrete, but also significantly increases the costs; depending on the position of the spray surface and the nature of the wall or the surface, 40% and more bounce off. The rebound also affects occupational safety and hygiene.
  • the invention solves the problem of creating a device of the type mentioned at the beginning, in which it is ensured that the rebound of the mixture sprayed onto the wall is prevented as far as possible or reduced to a minimum and the flexible formlining is reliably supported .
  • the invention is based on the subject matter of FR-A 2 400 600. This has the features of the preamble of device claim 1.
  • the formwork skin is exposed between the two deflection elements designed as deflection rollers, so that it can bulge under the pressure of the injected material and thus forms a pocket into which spray material can penetrate.
  • the invention as characterized in claim 1, solves the problem.
  • the impulses caused by the impact of the sprayed mixture on the formwork-like device are affected by a certain contact pressure on the sprayed mixture, e.g. Shotcrete, collected.
  • a device of a similar type is known from DE-A 3 446 804.
  • a formwork is provided to prevent the rebound, which is arch-shaped and is attached to the outside on two spaced apart arches.
  • This formwork can be implemented step by step, the movable end of the pressure line leading to the sprayed mixture, namely shotcrete, being moved over the formwork circumference in each spraying cycle to produce a concrete ring, and after each spraying cycle after solidification of the concrete ring, the formwork is moved by one of the axial thickness of the Concrete ring corresponding route is gradually moved in the direction of advance.
  • the device for spraying a layer 1 consisting of a hardenable mixture of binder, additive and liquid, which can be set, onto a wall 2 consists of a flexible pressure line 3 guiding the mixture to be sprayed, from the end 4 of which is directed towards the wall 2 and can be moved at a distance via the wall , which is expediently formed by a spray nozzle 20, the mixture to be sprayed out and reaches the wall 2.
  • the device has a formwork-like support surface 5 provided for the layer 1 to be sprayed on at a distance from the wall 2 corresponding to the thickness of the layer 1 to be sprayed on, the support surface being arranged to be movable - following the movements of the outlet end 4 of the pressure line 3.
  • the direction of movement 17 of the support surface 5 is indicated by an arrow.
  • the support surface 5 is provided with a motion drive 8.
  • the supporting surface 5 is formed by the strand of an endless flexible formlining 7 which runs around the sprayed-on layer 1 and faces the wall 2 and which extends around at least two spaced-apart deflecting elements 6.
  • the deflection elements 6 are formed by deflection rollers.
  • the movement drive 8 is designed as a rotary drive and, according to FIG. 1, is assigned to one of the deflection elements 6.
  • the motion drive 8 can also be shown in a manner not shown via pivotable arms from an independent drive device, e.g. an excavator or the like. Can be transferred to the deflection elements 6.
  • an independent drive device e.g. an excavator or the like.
  • the flexible endless formlining 7 is received at the rear by the lower deflection element 6 in the drawing and presented at the front, in accordance with the propulsion system of a tracked vehicle traveling on chains.
  • Spraying is carried out on the locally defined area 21 between wall 2 or rock and the formwork-like support surface 5, whereby the rebound is reduced to a minimum when the spray angle, spray pressure and the distance of the nozzle 20 from the application area are set correctly.
  • the speed of advance depends on the spraying power.
  • the strand forming the supporting surface 5 of the flexible formlining 7 is assigned a supporting element which is provided on the side of the strand facing away from the sprayed-on layer 1 and which is designed as a vibration element acting on the sprayed-on layer 1 through the supporting surface 5 .
  • This support element can e.g. 1 and 5 below can be formed by juxtaposed rollers or according to FIGS. 2 to 5 above by a support plate.
  • the embodiment in the embodiment according to FIG. 3 is such that the support surface 5 - in particular when successively applying a plurality of individual layers - has protrusions 10 which press into the sprayed-on layer and cause additional interlocking with the next layer, e.g. Pimples, is provided.
  • the support surface 5 can be designed to be permeable to air and liquid, the support element 9 being designed as a suction element acting on the sprayed-on layer 1 through the support surface 5.
  • the support plate 9 is hollow and is made permeable to air and liquid on the side facing the support surface 5 of the flexible formlining 7, the suction plate 11 being assigned to the hollow support plate 9.
  • the side of the support plate 9 facing the strand of the flexible formlining 7 forming the support surface 5 is provided with openings 12.
  • the sprayed-on layer 1 assumes the state of early strength much faster.
  • the support element 9 is designed as a heating element acting on the sprayed-on layer 1 through the support surface 5.
  • At least one of the deflection elements 6 can also be designed as a vibration element acting on the sprayed-on layer 1.
  • the support surface 5 has a supporting structure 13, to which the motion drive 8 is assigned in a suitable manner.
  • the support structure 13 can be attached to a gun of an independent carrier device or with the pressure line 3 or with the spray nozzles 20 in a sensible manner. Movable attachment to the cut-out profiles or to the wall 2 is also conceivable.
  • the motion drive 8 is arranged on a guide frame 23 located to the side or below the formwork-like support surface 5, the propulsion movement 17 being transferable to the deflection elements 6 via the support structure 13.
  • the support structure 13 consists of a connection carrier 15 carrying the axes 14 of the deflecting rollers and a support arm 16 connected to the latter.
  • the support plate 9 can be adapted to the wall curvatures or to the changes in curvature.
  • the width and / or the length of the support surface 5 and, if appropriate, the support element 9 is variable, it being possible for the sprayed concrete to adhere to the adhesive effect. It is entirely possible to reduce or omit the additives previously required for the adhesive effect, which has a further beneficial effect in terms of the size of the final strength and durability.
  • FIG. 5 shows an expedient embodiment in which a plurality of formwork-like support surfaces 5 are arranged one behind the other.
  • the design is such that the support surface 5 - with the formation of a type of receiving trough for the mixture to be sprayed on - has a leading surface 18 which extends in the direction of movement 17 of the latter and moves away from the layer 1 which has already been sprayed on.
  • the leading surface 18 is formed by at least one deflection element 19 which is provided in the form of a deflection roller and is provided in addition to the deflection elements 6. In the case shown, two deflection rollers are provided.
  • a reinforcement inserted into layer 1 is designated by 22.
  • the sprayable layer 1 can expediently be sprayed in such a way that on both sides of the excavation cross-section it starts at the bottom, then continues upwards until it meets in the cross-sectional center, the flexible formlining 7 following the outlet end 4 of the pressure line 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Nozzles (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Claims (20)

1. Dispositif permettant d'appliquer sur des parois, par projection, une couche (1) d'un mélange capable de tenir et constitué de liant, de charge et de liquide, du type comprenant, d'une part, une tuyauterie sous pression (3) d'amenée du mélange à appliquer par projection, le mélange sortant, pour parvenir sur la paroi (2), de l'extrémité (4) de cette tuyauterie sous pression qui est dirigée vers la paroi et est déplaçable devant celle-ci, et, d'ature part, une surface (5) de soutien de la couche (1) à projeter par projection, qui joue le rôle d'un coffrage et qui est disposée à une distance de la paroi (2) correspondant à l'épaisseur de cette couche (1) et est mobile de façon à suivre les déplacements de l'extrémité de sortie (4) de la tuyauterie sous pression (3), cette surface de soutien (5) étant constituée par le brin, faisant face à la paroi (2) et passant devant la couche (1) appliquée par projection, d'une peau de coffrage (7), souple et sans fin, se déplaçant autour d'au moins deux éléments de renvoi (6) situés à distance l'un de l'autre, caractérisé en ce qu'un élément de soutien (9) est associé au brin de la peau souple de coffrage (7) constituant la surface de soutien (5), du côté de ce brin qui est opposé à la couche (1) appliquée par projection, et en ce que cet élément de soutien (9) est réalisé sous la forme d'un élément vibrant agissant, à travers la surface de soutien (5), sur la couche (1) appliquée par projection.
2. Dispositif suivant la revendication 1, caractérisé en ce que l'élément de soutien (9) est constitué par une plaque de soutien.
3. Dispositif suivant l'une quelconque des revendications 1 et 2, caractérisé en ce que la surface de soutien (5) est perméable, l'élément de soutien (9) étant réalisé sous la forme d'un élément aspirant qui agit, à travers la surface de soutien (5), sur la couche (1) appliquée par projection.
4. Dispositif suivant la revendication 3, caractérisé en ce que l'élément de soutien (9), réalisé sous la forme d'une plaque de soutien, est creux et est perméable sur sa face tournée vers le brin de la peau souple de coffrage (7) qui constitue la surface de soutien (5), un dispositif d'aspiration (11) étant associé à cette plaque de soutien (9) creuse.
5. Dispositif suivant la revendication 4, caractérisé en ce que la face de la plaque de soutien (9) qui est tournée vers le brin de la peau souple de coffrage (7) qui constitue la surface de soutien (5) est pourvue de perforations (12).
6. Dispositif suivant l'une quelconque des revendications 1 à 5, caractérisé en ce que l'élément de soutien (9) est réalisé sous la forme d'un élément chauffant agissant, à travers la surface de soutien (5), sur la couche (1) appliquée par projection.
7. Dispositif suivant l'une quelconque des revendications 1 à 6, caractérisé en ce que la surface de soutien (5) est munie de moyens d'entraînement (8) assurant son déplacement.
8. Dispositif suivant l'une quelconque des revendications 1 à 7, caractérisé en ce que les éléments de renvoi (6) sont constitués par des rouleaux de renvoi.
9. Dispositif suivant l'une quelconque des revendications 7 et 8, caractérisé en ce que les moyens d'entraînement (8) servant au déplacement sont réalisés sous la forme de moyens d'entraînement en rotation et sont associés à au moins l'un des éléments de renvoi (6).
10. Dispositif suivant l'une quelconque des revendications 7 et 8, caractérisé en ce que l'action des moyens d'entraînement (8) assurant le déplacement peut être transmise d'un appareil indépendant d'entraînement aux éléments de renvoi (6) par l'intermédiaire de bras orientables.
11. Dispositif suivant l'une quelconque des revendications 1 à 10, caractérisé en ce que, notamment dans le cas de l'application successive de plusieurs couches individuelles, la surface de soutien (5) comporte des parties en surélévation (10) exerçant une pression sur la couche appliquée par projection.
12. Dispositif suivant l'une quelconque des revendications 1 à 11, caractérisé en ce qu'au moins l'un des éléments de renvoi (6) est réalisé sous la forme d'un élément vibrant agissant sur la couche (1) appliquée par projection.
13. Dispositif suivant l'une quelconque des revendications 7 à 12, caractérisé en ce que la surface de soutien (5) comporte une structure porteuse (13) qui est associée aux moyens d'entraînement (8) assurant le déplacement.
14. Dispositif suivant la revendication 13, caractérisé en ce que les moyens d'entraînement (8) assurant le déplacement sont disposés sur un châissis de guidage (23) situé sur le côté ou au-dessous de la surface de soutien (5) jouant le rôle de coffrage et en ce que le déplacement (17) réalisant l'avancement peut être transmis aux éléments de renvoi (6) par l'intermédiaire de la structure porteuse (13).
15. Dispositif suivant l'une quelconque des revendications 13 et 14, caractérisé en ce que la structure porteuse (13) est constituée d'un support de liaison (15), portant les axes (14) des éléments de renvoi (6), et d'un bras porteur (16) solidaire de ce support de liaison.
16. Dispositif suivant l'une quelconque des re-- vendications 1 à 15, caractérisé en ce que, dans le cas de parois incurvées (2), l'élément de soutien (9) est adaptable aux courbures de la paroi.
17. Dispositif suivant l'une quelconque des revendications 1 à 16, caractérisé en ce que la largeur et/ou la longueur de la surface de soutien (5), et éventuellement de l'élément de soutien (9), sont modifiables.
18. Dispositif suivant l'une quelconque des revendications 1 à 17, caractérisé en ce que plusieurs surfaces de soutien (5) jouant le rôle de coffrage sont disposées l'une derrière l'autre.
19. Dispositif suivant l'une quelconque des revendications 1 à 18, caractérisé en ce que la surface de soutien (5) comprend une surface (18) d'orientation du mélange, qui s'étend suivant la direction (17) de déplacement de cette surface de soutien, mais s'éloigne de la couche (1) déjà appliquée par projection, en formant une sorte de cuvette réceptrice pour le mélange à appliquer par projection.
20. Dispositif suivant la revendication 19, caractérisé en ce que la surface (18) d'orientation du mélange est réalisée à l'aide d'un organe (19) de déviation de la peau de coffrage qui est prévu en plus des éléments de renvoi (6).
EP86110403A 1985-09-19 1986-07-28 Dispositif pour appliquer au pistolet une couche capable de tenir sur des parois Expired - Lifetime EP0215243B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86110403T ATE57414T1 (de) 1985-09-19 1986-07-28 Vorrichtung zum aufspritzen einer abbindefaehigen schicht auf wandungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3533476A DE3533476C1 (de) 1985-09-19 1985-09-19 Vorrichtung zum Aufspritzen einer abbindefaehigen Schicht auf Wandungen
DE3533476 1985-09-19

Publications (3)

Publication Number Publication Date
EP0215243A2 EP0215243A2 (fr) 1987-03-25
EP0215243A3 EP0215243A3 (en) 1987-10-14
EP0215243B1 true EP0215243B1 (fr) 1990-10-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110403A Expired - Lifetime EP0215243B1 (fr) 1985-09-19 1986-07-28 Dispositif pour appliquer au pistolet une couche capable de tenir sur des parois

Country Status (3)

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EP (1) EP0215243B1 (fr)
AT (1) ATE57414T1 (fr)
DE (2) DE3533476C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1882812A1 (fr) * 2006-07-25 2008-01-30 Porr Tunnelbau GmbH Dispositif et procédé destinés à l'application d'une couche retirable sur des éléments de construction

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3533476C1 (de) * 1985-09-19 1986-06-12 Philipp Holzmann Ag, 6000 Frankfurt Vorrichtung zum Aufspritzen einer abbindefaehigen Schicht auf Wandungen
FI872244A (fi) * 1987-05-21 1988-11-22 Betemi Oy Framstaellningsfoerfarande foer betongelement.
DE4316116A1 (de) * 1993-05-13 1994-11-17 Holzmann Philipp Ag Rollschalung
DE4411976A1 (de) * 1994-04-07 1995-10-12 Holzmann Philipp Ag Gleitschalung
DE4440111C2 (de) * 1994-11-11 1998-09-17 Joachim Stegner Vorrichtung zum Beschichten von Flächen an Gebäuden mittels aushärtbarer Dickstoffe
DE19800963A1 (de) * 1998-01-14 1999-07-22 Holzmann Philipp Ag Verfahren zum Verpressen des Ringraums zwischen Tübbingen und Gebirge mit Mörtel
DE10118289A1 (de) * 2001-04-12 2002-10-17 Tubag Trass Zement Stein Verfahren und Vorrichtung zum Aufbringen einer Putzbeschichtung auf stehende Wandbauelemente sowie entsprechendes Wandbauelement
CN101915109B (zh) * 2010-08-06 2012-07-25 中国矿业大学 一种降尘减弹的混凝土喷射方法
CN110410107A (zh) * 2019-07-31 2019-11-05 湖南帝星智能科技有限公司 湿喷机用模喷组件以及施工工艺

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Publication number Priority date Publication date Assignee Title
GB1047844A (en) * 1962-06-12 1966-11-09 Grant Developments Ltd Improvements in or relating to a method of and apparatus for casting walls in shuttering
CH613015A5 (en) * 1976-07-15 1979-08-31 Spribag Ag Mobile apparatus for applying shotcrete to walls
FR2400600A1 (fr) * 1977-08-19 1979-03-16 Fricotte Rene Banche mobile avec dispositif de remplissage en continu
DE2833439C2 (de) * 1978-07-29 1980-04-30 Karl-Heinz 3500 Kassel Fingerling Vorrichtung zum bleibenden Verschalen von Flächen, insbesondere von Wänden oder Innendachflächen von Gebäuden, mit Platten
US4247269A (en) * 1980-01-21 1981-01-27 Bezhanov Tigran V Concrete placing apparatus
DE3037790A1 (de) * 1980-10-07 1982-05-13 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Vorrichtung zum auskleiden eines tunnels, einer unterirdischen strecke o. dgl. mit erhaertenden stoffen
DE3137170C1 (de) * 1981-09-18 1983-04-07 Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim Vorrichtung zum Auftragen von Spritzgut zur Sicherung und Auskleidung von Ausbruchsflächen im untertägigen Hohlraumbau
DE3446804A1 (de) * 1983-12-23 1985-07-18 Karl Dipl.-Ing. 7000 Stuttgart Schlecht Verfahren und vorrichtung zum konsolidieren von tunnelwaenden
DE3533476C1 (de) * 1985-09-19 1986-06-12 Philipp Holzmann Ag, 6000 Frankfurt Vorrichtung zum Aufspritzen einer abbindefaehigen Schicht auf Wandungen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1882812A1 (fr) * 2006-07-25 2008-01-30 Porr Tunnelbau GmbH Dispositif et procédé destinés à l'application d'une couche retirable sur des éléments de construction

Also Published As

Publication number Publication date
EP0215243A3 (en) 1987-10-14
EP0215243A2 (fr) 1987-03-25
ATE57414T1 (de) 1990-10-15
DE3674869D1 (de) 1990-11-15
DE3533476C1 (de) 1986-06-12

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