EP0240594A1 - Dispositif pour la distribution de béton dans les ouvrages souterrains - Google Patents

Dispositif pour la distribution de béton dans les ouvrages souterrains Download PDF

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Publication number
EP0240594A1
EP0240594A1 EP86111687A EP86111687A EP0240594A1 EP 0240594 A1 EP0240594 A1 EP 0240594A1 EP 86111687 A EP86111687 A EP 86111687A EP 86111687 A EP86111687 A EP 86111687A EP 0240594 A1 EP0240594 A1 EP 0240594A1
Authority
EP
European Patent Office
Prior art keywords
tubular drum
mixing
drum
concrete
dry
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86111687A
Other languages
German (de)
English (en)
Other versions
EP0240594B1 (fr
Inventor
Gerhard Dipl.-Kfm. Schwing
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.)
Friedrich Wilhelm Schwing GmbH
Original Assignee
Friedrich Wilhelm Schwing GmbH
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 Friedrich Wilhelm Schwing GmbH filed Critical Friedrich Wilhelm Schwing GmbH
Priority to AT86111687T priority Critical patent/ATE55720T1/de
Publication of EP0240594A1 publication Critical patent/EP0240594A1/fr
Application granted granted Critical
Publication of EP0240594B1 publication Critical patent/EP0240594B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4272—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport with rotating drum rotating about a horizontal or inclined axis, e.g. comprising tilting or raising means for the drum
    • B28C5/4275—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport with rotating drum rotating about a horizontal or inclined axis, e.g. comprising tilting or raising means for the drum with a drum rotating about a horizontal axis, e.g. perpendicular to the longitudinal axis of the vehicle

Definitions

  • the invention relates to a method for providing batches of concrete in underground operation according to the preamble of claim 1. Furthermore, the invention relates to a device for performing this method.
  • the invention enables the provision of batches of concrete mainly in tunnel construction, but possibly also when expanding lines in mining. It relates to processes according to which batches of concrete are only produced on site and not above ground, and therefore cement on the one hand and dry or self-moist aggregates, if necessary with appropriate concrete additives, are transported separately on site, however. This means that there is no need to transport wet or earth-moist ready-mixed concrete that has been manufactured for days and the associated subsequent mixing of the delivered concrete on site.
  • the method according to the invention makes it possible in particular to prepare the concrete only when it is removed on site from the finishing work to be carried out there.
  • the invention is based on one of these previously known methods, which is carried out with a track-bound vehicle with a special structure.
  • the construction of this vehicle has several containers in which cement and aggregates are separated, if necessary with additives, but are transported together. Two containers arranged next to each other are provided for the cement in each batch of concrete; two additional containers contain the surcharges for each of these batches of concrete.
  • the vehicle has an automatic clutch and a discharge conveyor. With the coupling, it can be connected to an on-site feed conveyor belt of a mobile mixer with a concrete pump arranged at the bottom, which takes over a batch of concrete from two containers and feeds the batch of concrete to the concrete pump. With the vehicle's discharge conveyor, the loads belonging to a concrete batch are continuously removed.
  • the container arrangement ensures that the cement is applied in a layer arranged on top of the aggregate lying on the bottom of the concrete conveyor belt.
  • the mixing takes place to a significant extent only in the mixer downstream of the feed belt. Water must be added to avoid dust formation. For this reason, the dry constituents of the concrete are initially kept separate from each other and practically only mixed in with the addition of water in the mixer, i.e. mixed.
  • the disadvantage here is the comparatively poor quality of the concrete.
  • this is a consequence of irregularities in the bringing together of cement, aggregates and water due to the described processes, which are primarily due to the uncontrollable run-out processes on the containers above the discharge belt, but also when adding water and cannot be completely eliminated in front of the concrete pump.
  • Organizationally it is also difficult to completely remove the batch of concrete produced, ie to match the concreting and the production of the concrete to one another with the required accuracy. As a result, fresh quality concrete is therefore not available on site in the previously known method.
  • a further disadvantage is the contamination by wet and hardened concrete components of the conveyor belts and machines connected upstream of the concrete pump, which has to be accepted as a result of the necessary addition of water on the transport route.
  • the invention has for its object to perform the known as a method so that fresh quality concrete can be made available on site and a significant risk of contamination no longer has to be accepted.
  • the cement load on the aggregate load on site after the transport, that is to say the filling of the cement load on the aggregate load on site, all irregularities in bringing together the batches belonging to a concrete batch are dry components eliminated.
  • the total amount is homogenized due to its thorough mixing, then transported and mixed with the mixing water.
  • This dry mixing of the components not only leads to a completely uniform mixing and thus to a quality concrete.
  • the method according to the invention is preferably carried out with the features of patent claim 3.
  • This makes it possible to take advantage of the mechanical stresses on the dry concrete components, which are unavoidable during transport, for further mixing, which has the advantage of shortening the dry mixing system.
  • several dry mixing processes can be connected to one another in correspondingly connected dry mixers, which leads to a compact design of the device according to the invention suitable for carrying out the method. This is desirable because of the limited space in underground operations, which force an elongated construction.
  • the transport route is shortened to a mixing section, which can be divided into several dry mixers connected in series, preferably truck mixers, when implementing the method according to the invention. Conveyor belts and similar intermediate funding can then be dispensed with entirely.
  • the device shown in Fig. 1 consists of several, coupled together Rail vehicles 1 to 5.
  • the rail vehicles 1 and 2 are identical. The number of these identical vehicles can be increased beyond the number shown.
  • the rail vehicles 3 and 4 have a modified structure compared to the rail vehicles 1 and 2. Their number can also be increased. However, it is sufficient if one of these vehicles is provided.
  • the rail vehicle 5 has a special construction. As a rule, only one of these vehicles is required in the train. It should also be noted that the rail vehicles have automatic clutches.
  • type 3 or 4 and 5 rail vehicles are installed stationary for several work processes on site. Type 1 and 2 rail vehicles are coupled and uncoupled as required. These vehicles operate between above ground and underground. This mode of operation is intended for tunnel construction. If it is used in mining, the rail vehicles of type 1, 2 can also remain underground, provided that a corresponding filling device is available underground.
  • the rail vehicles of type 1, 2 are a four-axle base frame 6 with a vehicle body 7 with a lying tubular drum 8 (FIG. 4).
  • This contains in its interior a mixing and transport spiral 10 fastened to the inner wall 9 (FIG. 3).
  • a further transport spiral 12 made of sheet metal is arranged concentrically with the spiral 10 located on the outside via spacers 11.
  • the gradients of the spirals are in opposite directions; if the pipe drum 8 is closed at the front and rear, the screws transport the mix back and forth.
  • the one provided between the two spirals 10, 12 Gap 13 enables free fall mixing. If the drum is open in the conveying direction of the outer spiral 10, the mix is discharged from this opening. If this opening is closed, but the drum is open at the other end, it can be filled through this opening. If both openings are open, the outer spiral 10 acts as a funding.
  • a cement silo 14 is left out of the interior of the tubular drum 8.
  • This cement silo has the shape of a cylinder jacket segment. Accordingly, it is delimited on the outside by the sheet metal skin 17 of the tubular drum 8 provided with manholes 15, 16. Inside, a parallel curved bottom 18 serves as an inner closure. Flat side walls 19, 20 complete the wall of the cement silo 14.
  • the silo 14 has a floor drain, which is generally designated 21 in FIG. 2.
  • the floor emptying leads from the room of the cement silo 14 into the mixing room 22, which at the same time serves as a container for receiving the dry aggregates or aggregates 23 of a batch of concrete.
  • the bottom is emptied by two swivel flaps, which are shown in dash-dotted lines in the open state at 24 and 25 in FIG. 2.
  • the flaps are adjusted using a handlebar linkage.
  • a two-armed swing arm 26 is used for this purpose, which is connected at one end to a hydraulic working cylinder 27a and pivots about a fixed axis 26a.
  • Handlebars 27, 28 connect the rocker 26 to rockers 29 and 30, which pivot about fixed axes 31, 32 and thereby move and hold the flaps in the closed or in the open position via brackets on the outer skin of the swivel flaps 24, 25.
  • the drive described is attached in the front part, ie on the discharge opening 33 of the tubular drum 8.
  • the tubular drum 8 has a cylindrical section 34 and a cone 35 or 36 at each end.
  • the tubular drum can be rotated about its central axis 39a via a drive 37 with a toothed ring 38 arranged on the cylindrical section 34.
  • the discharge end 33 is seated on the front cone 35, which has an axially movable closure cap 39 shown in dashed lines in FIG. 4.
  • the sealing cover is in the rear, shortened cone of the preceding rail vehicle 2 of the same type.
  • the cone 35 serves to close the rear opening of the drum ahead.
  • the types 3 and 4 rail vehicles in turn have a four-axle chassis 40 (FIG. 5).
  • the chassis has a structure 41 which is essentially formed by a tubular drum 42.
  • the tubular drum has external dimensions that correspond to the structure of the type 1 and 2 rail vehicle. Accordingly, a cylindrical middle section 43 is provided with conical end sections 44, 45, of which the front cone has a discharge opening 46 which is provided with a closure cap 47.
  • the cone 45 leads into the cone 44 of the preceding rail vehicle of the other type.
  • a drive 48 rotates the mixing drum 42 via a ring gear 49.
  • the mixing drum is provided with a mixing spiral 10 and a counter-rotating mixing spiral 10 or 12 of the same type and the same mode of operation as is used in the type 1 and 2 rail vehicles.
  • the front rail vehicle 5 has a rail chassis 51 which is extended in accordance with the exemplary embodiment.
  • the structure consists of a tilting frame 52, the tilting axis 53 of which is arranged at the rear end of the rail vehicle 5.
  • a tubular drum 54 is built on the tilting frame, which has a rear cone 57, the opening of which is closed with the cone of the following vehicle 4.
  • a dispensing device 55 is provided, which is provided with a closure cover 56.
  • the tubular drum 54 in contrast to the other tubular drums, has three manholes 58 to 60 which can be closed with lids instead of the manholes 50 and 50a in the construction of the type 3 and 4 vehicles or the manholes 15 and 16 of the type 1 and 2.
  • the tubular drum 54 is also provided on the inside with the mixing spirals 10 and 12, which have been discussed in connection with FIGS. 2 and 3.
  • the mixing drum 54 can also be rotated via a drive 61 and the ring gear 62.
  • a tilt cylinder 62a is articulated in the chassis at 63 and on the underside of the tilt frame 52 at 64.
  • the vehicle of the type (FIG. 5) has a connection for mixing water which flows in from a line 66 via a quantity indicator 65. It reaches a distributor 67, from which a plurality of nozzles 68 and 69 are acted on, which are fastened to the inner spiral 12.
  • This differs from Type 3, which also works as a mixer, but works dry.
  • a plurality of type 1 and 2 rail vehicles are preferably filled through the open manholes 15, 16 with an additional load for a batch of concrete, the flaps being open.
  • the flaps of the silo 14 After the flaps of the silo 14 have been closed, the amount of cement required for the batch of concrete in question is filled into the silo. Of course, the quantities filled in weighed as required for quality concrete. Then the manholes are closed.
  • the type 1, 2 vehicles are then used to transport the separate loads for one or more batches of concrete on site. The transport route is ended as soon as the automatic coupling of the first train from vehicles 1, 2 has been connected to the automatic coupling of vehicle 3 of the second train.
  • the flaps 24, 25 are opened in the rail vehicle 2 traveling ahead, as a result of which the entire amount of cement is poured into the aggregate load at once. This is indicated schematically in FIG. 2. After the cement has been added, the flaps 24, 25 are closed again. If the closure cover 39 is closed, the described loads are already intensively dry mixed in the rail vehicle 2 when the drum is rotating. If the relevant batch of concrete is called up, the lid 39 is opened or is already in the open state. Then the mixture easily enters the tubular drum of the rail vehicle 3. The structure of this vehicle is used exclusively to complete the dry mix so that empty vehicles 1 and 2 can be uncoupled and loaded again. The transport effect of the outer screw means that the mixture can overcome the distance between the rail vehicle 2 and the rail vehicle 4. This presupposes that the closure cover 47 is open. If the cover 47 is closed, the material to be mixed is circulated and further mixed dry.
  • the mixed material enters the tubular drum of the rail vehicle 4.
  • the rail vehicle 4 differs from the rail vehicle 3 only in the water supply 66, which has been described above. This enables an exact determination of the water-cement factor in the finished concrete. Since the water is supplied via the nozzles 68 and 69, the mixing water is evenly distributed in the dry mixture. At the same time, a lubricating film is formed on the flights of the screws 10, 12, which ensures the transport effect. If the cover 47 of the rail vehicle 4 is closed, the now wet concrete is thoroughly mixed in the tubular drum. As soon as the lid is opened, the finished batch of concrete arrives in the tubular drum 54 of the rail vehicle 5.
  • the batch of concrete may be temporarily stored with the remainder of the previous batch of concrete still present.
  • the tilting frame 52 enables the height of the discharge opening 55 to be adjusted, which is shown by the broken line in FIG. 1. This makes it possible to set different feed heights for concrete pumps, conveyor belts, circuit openings or the like.
  • the tubular drum of the rail vehicle 2 runs along and serves as a means of transport for conveying the dry mix into the following rail vehicles of type 1 and 2 when they are emptied, their automatic coupling with the rail vehicle 3 is released.
  • the train will be returned to reload.
  • the facility enables a changeover system and thus the provision of large quantities of quality concrete.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (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)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
EP86111687A 1986-04-04 1986-08-23 Dispositif pour la distribution de béton dans les ouvrages souterrains Expired - Lifetime EP0240594B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86111687T ATE55720T1 (de) 1986-04-04 1986-08-23 Vorrichtung zur bereitstellung von betonchargen im untertagebetrieb.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3611382 1986-04-04
DE19863611382 DE3611382A1 (de) 1986-04-04 1986-04-04 Verfahren und vorrichtung zur bereitstellung von betonchargen im untertagebetrieb

Publications (2)

Publication Number Publication Date
EP0240594A1 true EP0240594A1 (fr) 1987-10-14
EP0240594B1 EP0240594B1 (fr) 1990-08-22

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EP86111687A Expired - Lifetime EP0240594B1 (fr) 1986-04-04 1986-08-23 Dispositif pour la distribution de béton dans les ouvrages souterrains

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EP (1) EP0240594B1 (fr)
AT (1) ATE55720T1 (fr)
DE (2) DE3611382A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990009266A1 (fr) * 1989-02-14 1990-08-23 Risto Minkkinen Systeme de distribution de beton
WO1991016497A1 (fr) * 1990-04-20 1991-10-31 Minkkinen Risto J Systeme d'epandage pour masses a l'etat humide
DE4244282A1 (de) * 1992-12-28 1994-07-07 Riker Rudolf Verfahren und Anlage für die Beton- und Mörtelbereitung im Tunnel
WO1995009074A1 (fr) * 1993-09-29 1995-04-06 Imk Ingenieurkontor Für Maschinenkonstruktion Gmbh Melangeur-transporteur pour melanges de produits en vrac et de liquides
ES2176048A1 (es) * 1998-12-15 2002-11-16 Ferroberica S L Instalacion movil para la fabricacion de armaduras metalicas.
WO2008028307A1 (fr) * 2006-09-08 2008-03-13 Rowa Tunnelling Logistics Ag Procédé et dispositif de transport du béton sur rails
CN113513340A (zh) * 2021-03-17 2021-10-19 临沂矿业集团有限责任公司 一种煤矿井下用超远距离喷浆系统及使用方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0454700A1 (fr) * 1989-01-16 1991-11-06 MINKKINEN, Risto Assemblage de reservoirs dans un systeme de transport de fret en vrac comprenant un camion et une remorque
AT409529B (de) * 1998-05-25 2002-09-25 Gapp Bernd Verfahren und einrichtung zur verfestigung der oberfläche von gesteinshaltigem erdreich
CN103075185A (zh) * 2013-01-31 2013-05-01 陈为朋 矿用喷射混凝土管式转载机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1894129A (en) * 1928-05-14 1933-01-10 Harry J Shaw Concrete delivery
DE815162C (de) * 1949-02-22 1951-11-29 Emil Schleif Transportvorrichtung fuer trockenes Gut, insbesondere gemischte Baustoffe
US2703703A (en) * 1953-04-30 1955-03-08 Nargelovic John Concrete mixing system
US3282448A (en) * 1964-07-22 1966-11-01 Robert A Mcneil Method and apparatus for conveying construction material
US3567190A (en) * 1968-12-12 1971-03-02 Ray D Moran Drum car and coupling apparatus for carrying and feeding concrete in tunnels

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1894129A (en) * 1928-05-14 1933-01-10 Harry J Shaw Concrete delivery
DE815162C (de) * 1949-02-22 1951-11-29 Emil Schleif Transportvorrichtung fuer trockenes Gut, insbesondere gemischte Baustoffe
US2703703A (en) * 1953-04-30 1955-03-08 Nargelovic John Concrete mixing system
US3282448A (en) * 1964-07-22 1966-11-01 Robert A Mcneil Method and apparatus for conveying construction material
US3567190A (en) * 1968-12-12 1971-03-02 Ray D Moran Drum car and coupling apparatus for carrying and feeding concrete in tunnels

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990009266A1 (fr) * 1989-02-14 1990-08-23 Risto Minkkinen Systeme de distribution de beton
WO1991016497A1 (fr) * 1990-04-20 1991-10-31 Minkkinen Risto J Systeme d'epandage pour masses a l'etat humide
DE4244282A1 (de) * 1992-12-28 1994-07-07 Riker Rudolf Verfahren und Anlage für die Beton- und Mörtelbereitung im Tunnel
WO1995009074A1 (fr) * 1993-09-29 1995-04-06 Imk Ingenieurkontor Für Maschinenkonstruktion Gmbh Melangeur-transporteur pour melanges de produits en vrac et de liquides
US5683177A (en) * 1993-09-29 1997-11-04 Imk Ingenieurkontor Fuer Maschinenkonstruktion Gmbh Cylindrical high-capacity transport mixer for bulk material and liquids
ES2176048A1 (es) * 1998-12-15 2002-11-16 Ferroberica S L Instalacion movil para la fabricacion de armaduras metalicas.
WO2008028307A1 (fr) * 2006-09-08 2008-03-13 Rowa Tunnelling Logistics Ag Procédé et dispositif de transport du béton sur rails
CN113513340A (zh) * 2021-03-17 2021-10-19 临沂矿业集团有限责任公司 一种煤矿井下用超远距离喷浆系统及使用方法

Also Published As

Publication number Publication date
DE3611382A1 (de) 1987-10-08
DE3673638D1 (de) 1990-09-27
ATE55720T1 (de) 1990-09-15
EP0240594B1 (fr) 1990-08-22

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