EP2390462B1 - Method and accessories for installing an airflow duct in an underground conduit - Google Patents
Method and accessories for installing an airflow duct in an underground conduit Download PDFInfo
- Publication number
- EP2390462B1 EP2390462B1 EP11290237.4A EP11290237A EP2390462B1 EP 2390462 B1 EP2390462 B1 EP 2390462B1 EP 11290237 A EP11290237 A EP 11290237A EP 2390462 B1 EP2390462 B1 EP 2390462B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- pipe
- pipe section
- cartridge
- distributor
- 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.)
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- 238000000034 method Methods 0.000 title claims description 20
- 238000009423 ventilation Methods 0.000 claims description 10
- 239000011796 hollow space material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims 3
- 230000014759 maintenance of location Effects 0.000 claims 2
- 238000005553 drilling Methods 0.000 description 9
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 239000004753 textile Substances 0.000 description 5
- 238000005273 aeration Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
Definitions
- the invention relates to a method of installing a ventilation duct, of the type used, in particular, during the drilling of tunnels. It also relates to accessory elements to this process.
- ventilation duct also called aeration duct in the art, leading from the outside of the borehole, in the open air, to the drilling face. We can then blow and / or suck fresh air through this conduit.
- the air duct must be lengthened as the drilling edge advances.
- the dispenser comprises a cylindrical piece, or "core”, on which a longitudinal portion of hose is threaded and trussed.
- the core is held in the hollow interior space of a frame, integral with it.
- the distributor is advanced as the drilling progresses: by tensioning effect, a portion of pipe, the length of which corresponds to the advance of the distributor, is removed from the core, set to its nominal diameter passing around the cone of distribution, and finally deployed.
- the length of the section of pipe that the distributor can hold is not sufficient to complete the drilling.
- the dispenser When the dispenser is empty, it pops out of the borehole and is refilled with a new section of pipe.
- the pipe Before its mounting on the core, the pipe is folded on itself in strip, that is to say that its cross section has a flattened pace.
- This allows the storage of large lengths of pipe in a compact form, for example coil, in the manner of the pipes commonly used by firefighters, or in packets, where the band is folded accordion and packed, for example.
- the pipe thus stored must be unfolded, threaded and keyed on the core, by hand. This operation proves tedious and difficult, in particular because it is necessary to penetrate the pipe in the annular space between the outside of the core and the wall of the hollow interior space.
- the reloading most often involves arranging the distributor so that its core extends vertically and arrange a specific work area, where a security tower is erected for operators: the core extends indeed over several meters in length (usually around 3 meters) and in diameter (usually around 2 meters). These operators then use long sticks to push the pipe inside the dispenser, between the core and the wall of the hollow interior, which makes the handling quite imprecise.
- the proposed method first allows to load / reload the dispenser with a cartridge containing a section of pipe.
- the dispenser cartridge Once the dispenser cartridge has been emptied of its pipe section, it can be replaced by a new cartridge, on the support of which a new section of pipe has been threaded and trussed. The time required to refill the dispenser is thus reduced to a minimum. In particular, the distributor remains close to the drilling face for the duration of the reloading operation.
- the cartridge itself can be charged / recharged from the chassis.
- the easy access to the support makes it easier to thread and truss a new section of pipe.
- the empty cartridge can be removed from the borehole for reloading.
- the cartridge can be inserted as a dispenser core, or, as an alternative, fitted onto the existing - empty - core, as appropriate.
- the cartridge can be delivered to the customer already loaded with a tape section. This customer no longer has to return the entire distributor and / or to provide its recharge by his care outside the borehole.
- the invention also relates to a support cylinder for threading and trussing a folded textile hose strip of dimensions adapted to be housed in the hollow interior space of a distributor frame and provided with holding means in this space substantially coaxially with the latter.
- the invention also relates to a refilling cartridge for a dispenser as used for the installation of a ventilation duct for the deployment of a textile hose folded into a strip in order to form a portion of duct, comprising such a cylinder on which is threaded, trussed and attached a section of pipe.
- the invention finally proposes a reloading kit for a dispenser as used for the installation of a ventilation duct for the deployment of a textile hose folded into a strip to form a portion of duct, comprising a cylinder of the type exposed above and a frustoconical piece whose large diameter is adapted to the diameter of said cylinder for threading a pipe section.
- the figure 1 represents a dispenser 1, also known as a cassette in the art, for use in the deployment of a pipe, for example made of textile material, folded into a strip, in particular with a view to the introduction of an air duct, or a section of such a pipe, when drilling, or drilling, tunnels, mine shafts or other underground conduits.
- This distributor 1 is also shown on Figures 6 to 10 .
- the distributor 1 is shown in its working position, that is to say disposed substantially horizontally.
- the dispenser 1 comprises a frame 3 having a hollow interior space 5 of elongate shape.
- This inner space 5 here has a cross section of substantially constant shape over its entire extension, for example circular or square.
- the chassis 3 has an overall elongated appearance.
- the frame 3 comprises a first longitudinal end face 7, on which the inner space 5 opens, and a second longitudinal end face 9, opposite the first end face 7, which is here partially open.
- a cartridge 11 intended to receive a section of pipe to be deployed.
- the cartridge 11 has an elongated appearance, here of revolution.
- Fastening means 13 contribute to maintaining the cartridge 11 in the space 5 so that the latter extends substantially in the direction of extension of the interior space 5.
- the fastening means 13 are reversible, that is to say that they allow the assembly, disassembly and reassembly of the cartridge 11 in the frame 3, without destruction of mechanical parts.
- the cartridge 11 is thus removably mounted in the frame 3, so that it can be extracted from the interior space 5 through the first end face 7, in particular with a view to reloading it with a new section. of pipe.
- the distributor 1 further comprises a pipe deployment guide in the form of a frustoconical piece, here called exit cone 14.
- the exit cone 14 can be arranged in the space 5, in the extension of the cartridge 11 and in such a way that it fades as it moves away from this cartridge 11, and that its longitudinal axis corresponds substantially to the direction of extension of this cartridge 11.
- the exit cone 14 can be removably attached to the frame 3 and / or to the cartridge 11.
- a pull is exerted on the pipe so that a segment of the rolled up pipe leaves the cartridge 11 and opens at its nominal diameter by sliding on the exit cone 14.
- simply advance the dispenser 1 so that a portion of pipe of corresponding length from the distributor 1 and thus forms a portion of aeration duct, since the end of the pipe section already out of the distributor 1 is attached to the ventilation duct.
- connection of the end of a new section of pipe to the free end of the ventilation duct can be done using means such as a coupling of two circular reinforcements arranged at these ends, separable closure, a loop band, clips and others.
- the cartridge 11 can be extracted out of the frame 3 or simultaneously with the exit cone 14, in particular when means for fixing the cone 14 to the cartridge 11 have been provided, or, preferably, after the dismounting of this cone 14.
- the cone 14 may be attached to the cartridge 11 and / or the chassis 3 after insertion of the cartridge 11 into the interior space 5, or prior to this insertion.
- the figure 2 shows the dispenser 1 devoid of cartridge 11.
- the figure 3 shows the insulated cartridge 11.
- the cartridge 11 comprises a support 15 for the section of pipe, on which the latter can be threaded and trussed.
- the pipe support 15 has a substantially cylindrical shape, with here a circular and hollow cross section.
- the diameter of this cross section is such that a longitudinal section of pipe can be threaded and rolled up on it.
- the support 15 can thus penetrate inside the pipe, depending on the length of the pipe.
- the support 15 forms a guide on which the entire section of pipe can be threaded, in particular slipped, and accumulated in an accordion folded form. If necessary, means for fixing the exit cone 14 may be provided on the support 15.
- the support 15 may be made of metal sheet of a few millimeters thick, for example 6 millimeters, or melamine, plywood, wood, plastic, cardboard and / or by assembling tubes together.
- the cartridge 11 also comprises a flange 17 attached to one of the axial ends of the support 15.
- the flange 17 is in the form of an annular segment whose inner diameter corresponds to the outside diameter of the support 15. Where appropriate, the flange 17 may have an outside diameter close to that of the inner space 5 to ensure a short guide / centering of the cartridge 11 in the hollow space 5 and / or to allow guiding of the cartridge 11 in this interior space 5 when insertion / extraction of the cartridge 11.
- the support 15 In the vicinity of its longitudinal end remote from the flange 17, the support 15 has a peripheral rib 19 which stiffens the support.
- this rib 19 has a rectangular cross section. It can take the form of a flat iron.
- the cartridge 11 comprises a piece of envelope 21 of cylindrical shape, which can be arranged around the support 15.
- the envelope piece 21 then bears against the flange 17 by one of its longitudinal ends.
- the envelope piece 21 is thin-walled. It has an outside diameter close to the outer diameter of the flange 17. The envelope piece 21 contributes to guiding the cartridge 11 in the interior space 5, both in the hose deployment position and during the insertion of the cartridge. 11 in the chassis 3 and its extraction out of this chassis 3.
- the casing part 21 is in the form of a part that can be deployed axially, for example a telescopic part, a part in several mutually abutting sections, or a flexible part that can be rolled up and inversely deployed.
- the envelope piece 21 can be monobloc.
- the figure 4 illustrates a method for loading or reloading the cartridge 11, that is to say for threading and trussing a section of pipe on the support 15.
- the casing piece 21, in its axially folded form, is arranged around the support 15, in the vicinity of its adjacent longitudinal end of the flange 17.
- the pipe section is threaded onto the support 15 and is rolled up.
- the piece of envelope 21 is deployed.
- figure 4 shows as well three successive steps of deployment of the envelope 21, or, in other words, the envelope 21 in three states of deployment 21A, 21B and 21C successive.
- the advantage of a direct access of the operator to the pipe during the threading / bending operation is retained, while maintaining this pipe, in its rolled-up form, inside the envelope piece. 21.
- the deployment of the latter may involve its unfolding, its "stripping", that is to say, an inverse operation of its troussage, or simply its translation relative to the support 15 along the axis of the latter.
- the cartridge 11 is arranged vertically for reloading.
- a threading guide 23 may be attached to the axial end face of the support 15 opposite to the flange 17, as illustrated on FIG. figure 5 .
- the threading guide can be made in the form of a frustoconical piece whose large diameter is close to the outside diameter of the rib 19 or the support 15.
- the assembly formed of the cartridge 11 and the threading guide 23 forms what may be called a cassette reloading kit.
- This kit may further comprise one or more sections of pipe in a folded form in strip and heap.
- the pipe may be made integral with the support 15, for example by passing one or more mechanical fastening links, of the collar type for example, in the interior space of the support 15, around the pipe and possibly the envelope piece 21.
- the cartridge 11 can be inserted in the frame 3 of a dispenser 1, that is to say in its interior space 5, and be supported therein so as to form a core, that is to say say a single cylindrical piece extending in the longitudinal direction of this hollow space.
- the inner diameter of the support 15 is adapted so that the latter can be moved around a cylindrical core piece and fixedly attached to the frame 3, in the inner space 5 of the latter.
- the exit cone 14 will, in this case, be attached to the immovable core.
- the support 15 then has a diameter bore adapted to form a long guide on the core of such a distributor, which contributes to the maintenance of the cartridge 11 in the distributor 1.
- the figures 11 and 12 show a part of the fastening means 13.
- These fastening means 13 comprise a set of fastening lugs 25 secured to the support 15 of the cartridge 11, intended to come opposite a fastening cylinder 27 integral with the chassis 3.
- the fastening lugs 25 are mutually arranged in two pairs of legs respectively arranged in V and connected to the attachment cylinder 27 by means of a threaded rod 29.
- the cylinder 27 is arranged between the branches of the V of the set of fastening lugs 25.
- the threaded rod 29 is also located between these branches.
- Other embodiments of these fastening means 13 may comprise systems for hook, toggle, claw, interlocking, interlocking, and the like.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Description
L'invention a trait à un procédé de mise en place d'un conduit d'aération, du type de ceux utilisés, en particulier, lors du forage de tunnels. Elle concerne également des éléments accessoires à ce procédé.The invention relates to a method of installing a ventilation duct, of the type used, in particular, during the drilling of tunnels. It also relates to accessory elements to this process.
Lorsqu'on fore un tunnel, un puits de mine ou toute autre galerie souterraine, on doit faire arriver de l'air frais à proximité du front de forage.When drilling a tunnel, mine shaft or other underground tunnel, fresh air must be brought in close to the drill hole.
Pour ce faire, on utilise généralement un conduit d'aération, aussi appelé gaine d'aération dans la technique, menant de l'extérieur du forage, à l'air libre, au front de forage. On peut alors souffler et/ou aspirer de l'air frais à travers ce conduit.To do this, generally uses a ventilation duct, also called aeration duct in the art, leading from the outside of the borehole, in the open air, to the drilling face. We can then blow and / or suck fresh air through this conduit.
Bien entendu, le conduit d'aération doit être rallongé à mesure que le front de forage avance.Of course, the air duct must be lengthened as the drilling edge advances.
Traditionnellement, un tel conduit d'aération est construit par aboutement mutuel de tronçons élémentaires tubulaires, le plus souvent rigides. Cette méthode nécessite cependant des opérations de manutention fréquemment répétées, lesquelles mobilisent un nombre important d'opérateurs, pour une longue période temporelle.Traditionally, such a ventilation duct is constructed by mutual abutment tubular elementary sections, usually rigid. This method, however, requires frequently repeated handling operations, which mobilize a large number of operators for a long period of time.
C'est pourquoi on préfère aujourd'hui réaliser des conduits d'aération en déployant un long tuyau souple et fin, le plus souvent en matière textile. Un tel tuyau est généralement appelé "ventube" dans la technique.That is why it is preferred today to create ventilation ducts by deploying a long and thin hose, most often made of textile material. Such a pipe is generally called "ventube" in the art.
On utilise alors un dispositif que l'on pourrait qualifier de distributeur. Le distributeur comprend une pièce cylindrique, ou "noyau", sur laquelle une portion longitudinale de tuyau souple est enfilée et troussée. Le noyau est maintenu dans l'espace intérieur creux d'un châssis, de manière solidaire à celui-ci. Une pièce tronconique, parfois appelée "cône de distribution", se raccorde coaxialement au noyau, de manière à s'évaser en s'éloignant de celui-ci.We then use a device that could be called distributor. The dispenser comprises a cylindrical piece, or "core", on which a longitudinal portion of hose is threaded and trussed. The core is held in the hollow interior space of a frame, integral with it. A frustoconical piece, sometimes called "distribution cone", connects coaxially to the core, so as to flare away from it.
Un tel distributeur est divulgué dans le document
Pour former une section de gaine d'aération, on fait avancer le distributeur au fur et à mesure que le forage progresse : par effet de tension, une portion de tuyau, dont la longueur correspond à l'avance du distributeur, se trouve retirée du noyau, mise à son diamètre nominal en passant autour du cône de distribution, et finalement déployée.To form a section of aeration duct, the distributor is advanced as the drilling progresses: by tensioning effect, a portion of pipe, the length of which corresponds to the advance of the distributor, is removed from the core, set to its nominal diameter passing around the cone of distribution, and finally deployed.
Il s'agit là d'une méthode particulièrement efficace, qui permet, par rapport à la méthode traditionnelle, un gain important de temps et de main d'oeuvre.This is a particularly effective method which, compared to the traditional method, allows a significant saving of time and manpower.
Pour la plupart des applications cependant, la longueur de la section de tuyau que le distributeur peut contenir, en général de l'ordre d'une centaine de mètres, ne suffit pas à achever le forage.For most applications, however, the length of the section of pipe that the distributor can hold, generally of the order of a hundred meters, is not sufficient to complete the drilling.
Lorsque le distributeur est vide, on le ressort à l'extérieur du forage et on le recharge avec une nouvelle section de tuyau.When the dispenser is empty, it pops out of the borehole and is refilled with a new section of pipe.
Avant son montage sur le noyau, le tuyau se trouve replié sur lui-même en bande, c'est-à-dire que sa section transversale présente une allure aplatie. Cela permet le stockage de longueurs importantes de tuyau sous une forme compacte, par exemple en bobine, à la manière des tuyaux couramment utilisés par les pompiers, ou en paquets, où la bande est pliée en accordéon et entassée, par exemple.Before its mounting on the core, the pipe is folded on itself in strip, that is to say that its cross section has a flattened pace. This allows the storage of large lengths of pipe in a compact form, for example coil, in the manner of the pipes commonly used by firefighters, or in packets, where the band is folded accordion and packed, for example.
Pour recharger le distributeur, le tuyau ainsi stocké doit être déplié, enfilé et troussé sur le noyau, à la main. Cette opération s'avère fastidieuse et difficile, en particulier parce qu'il faut faire pénétrer le tuyau dans l'espace annulaire compris entre l'extérieur du noyau et la paroi de l'espace intérieur creux. Le rechargement implique le plus souvent de disposer le distributeur de manière que son noyau s'étende verticalement et d'aménager une zone de travail spécifique, où une tour de sécurité est érigée pour les opérateurs : le noyau s'étend en effet sur plusieurs mètres en longueur (généralement aux alentours de 3 mètres) et en diamètre (généralement au voisinage de 2 mètres). Ces opérateurs utilisent alors de longs bâtons pour pousser le tuyau à l'intérieur du distributeur, entre le noyau et la paroi de l'espace intérieur creux, ce qui rend la manipulation assez imprécise.To refill the dispenser, the pipe thus stored must be unfolded, threaded and keyed on the core, by hand. This operation proves tedious and difficult, in particular because it is necessary to penetrate the pipe in the annular space between the outside of the core and the wall of the hollow interior space. The reloading most often involves arranging the distributor so that its core extends vertically and arrange a specific work area, where a security tower is erected for operators: the core extends indeed over several meters in length (usually around 3 meters) and in diameter (usually around 2 meters). These operators then use long sticks to push the pipe inside the dispenser, between the core and the wall of the hollow interior, which makes the handling quite imprecise.
En pratique, il n'est pas rare qu'une journée complète de travail soit nécessaire à quatre opérateurs pour recharger le distributeur.In practice, it is not uncommon for a full day's work to be required by four operators to reload the dispenser.
Le rechargement d'un distributeur s'avère donc une opération longue et coûteuse, qui implique en outre la mise hors fonction du distributeur pendant toute la durée de l'opération.The refilling of a distributor is therefore a long and expensive operation, which also involves the deactivation of the distributor throughout the duration of the operation.
L'invention cherche à améliorer la situation. Elle vise d'abord un procédé de mise en place d'un conduit d'aération dans lequel on déploie, à l'aide d'un distributeur, un tuyau replié en bande en vue de former une portion de conduit, ledit distributeur comprenant un châssis doté d'un espace intérieur creux dans lequel est fixé un support sur lequel une section de tuyau a été enfilée et troussée, le support étant prolongé par un cône de déploiement, ledit procédé comprenant, en fin de déploiement de la section de tuyau, une phase de rechargement comprenant les étapes suivantes :
- a.détacher le cône de déploiement du châssis;
- b.installer une nouvelle section de tuyau sur le support en position de déploiement;
- c.rattacher le cône de déploiement au châssis;
- d.relier la nouvelle section de tuyau à une portion de conduit;
- b1. sortir le support dépourvu de tuyau de l'espace intérieur creux;
- b2. installer, en position de déploiement dans l'espace intérieur creux, une cartouche comprenant un nouveau support analogue au support de l'opération b1 et une nouvelle section de tuyau, enfilée et troussée sur le nouveau support.
- a.detach the chassis deployment cone;
- b.install a new section of pipe on the support in the deployed position;
- attach the deployment cone to the chassis;
- connect the new pipe section to a duct portion;
- b1. remove the hose-free support from the hollow interior space;
- b2. installing, in deployment position in the hollow interior space, a cartridge comprising a new support similar to the support of the operation b1 and a new section of pipe threaded and punched on the new support.
Le procédé proposé permet d'abord de charger/recharger le distributeur avec une cartouche contenant une section de tuyau.The proposed method first allows to load / reload the dispenser with a cartridge containing a section of pipe.
Une fois la cartouche du distributeur vidée de sa section de tuyau, elle peut être remplacée par une nouvelle cartouche, sur le support de laquelle une nouvelle section de tuyau a été enfilée et troussée. Le temps nécessaire au rechargement du distributeur se trouve ainsi réduit au minimum. En particulier, le distributeur reste à proximité du front de forage pendant toute la durée de l'opération de rechargement.Once the dispenser cartridge has been emptied of its pipe section, it can be replaced by a new cartridge, on the support of which a new section of pipe has been threaded and trussed. The time required to refill the dispenser is thus reduced to a minimum. In particular, the distributor remains close to the drilling face for the duration of the reloading operation.
La cartouche elle-même peut être chargée/rechargée hors du châssis. L'accès aisé au support rend plus facile l'enfilage et le troussage d'une nouvelle section de tuyau.The cartridge itself can be charged / recharged from the chassis. The easy access to the support makes it easier to thread and truss a new section of pipe.
La cartouche vide peut être sortie du forage pour rechargement.The empty cartridge can be removed from the borehole for reloading.
La cartouche peut être insérée en tant que noyau du distributeur, ou, en remplacement, emmanchée sur le noyau existant - vide -, le cas échéant.The cartridge can be inserted as a dispenser core, or, as an alternative, fitted onto the existing - empty - core, as appropriate.
La cartouche peut être livrée au client déjà chargée avec une section de bande. Ce client n'a plus à renvoyer l'ensemble du distributeur et/ou à prévoir sa recharge par ses soins à l'extérieur du forage.The cartridge can be delivered to the customer already loaded with a tape section. This customer no longer has to return the entire distributor and / or to provide its recharge by his care outside the borehole.
L'invention concerne également un cylindre de support pour l'enfilage et le troussage d'un tuyau textile plié en bande de dimensions adaptées pour être logé dans l'espace intérieur creux d'un châssis de distributeur et muni de moyens de maintien dans cet espace de façon sensiblement coaxiale à ce dernier.The invention also relates to a support cylinder for threading and trussing a folded textile hose strip of dimensions adapted to be housed in the hollow interior space of a distributor frame and provided with holding means in this space substantially coaxially with the latter.
L'invention vise encore une cartouche de rechargement pour un distributeur tel qu'utilisé pour l'installation d'un conduit d'aération pour le déploiement d'un tuyau textile plié en bande en vue de former une portion de conduit, comprenant un tel cylindre sur lequel est enfilée, troussée et attachée une section de tuyau.The invention also relates to a refilling cartridge for a dispenser as used for the installation of a ventilation duct for the deployment of a textile hose folded into a strip in order to form a portion of duct, comprising such a cylinder on which is threaded, trussed and attached a section of pipe.
L'invention propose enfin un kit de rechargement pour un distributeur tel qu'utilisé pour l'installation d'un conduit d'aération pour le déploiement d'un tuyau textile plié en bande pour former une portion de conduit, comprenant un cylindre du type exposé plus haut et une pièce tronconique dont le grand diamètre est adapté au diamètre dudit cylindre pour l'enfilage d'une section de tuyau.The invention finally proposes a reloading kit for a dispenser as used for the installation of a ventilation duct for the deployment of a textile hose folded into a strip to form a portion of duct, comprising a cylinder of the type exposed above and a frustoconical piece whose large diameter is adapted to the diameter of said cylinder for threading a pipe section.
D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée ci-après et des dessins annexés, sur lesquels :
- la
figure 1 représente un distributeur de tuyau, vu en coupe longitudinale, le distributeur étant disposé horizontalement; - la
figure 2 représente une partie formant châssis du distributeur de lafigure 1 , vu en coupe longitudinale, le distributeur étant disposé verticalement; - la
figure 3 représente une cartouche à usage dans le distributeur de lafigure 1 , vue en coupe longitudinale, la cartouche étant disposée verticalement; - la
figure 4 est à analogue à lafigure 3 , la cartouche étant représentée, en différentes phases de chargement/rechargement en tuyau; - la
figure 5 montre un kit de chargement/rechargement en tuyau pour le distributeur de lafigure 1 ; - la
figure 6 représente le distributeur de lafigure 1 vu en perspective et de derrière; - la
figure 7 représente le distributeur de lafigure 1 vu en plan et de derrière; - la
figure 8 représente le distributeur de lafigure 1 vu en plan et de devant; - la
figure 9 représente le distributeur de lafigure 1 vu en plan et de côté; - la
figure 10 représente le distributeur de lafigure 1 en position verticale, vu en plan et de dessus; - la
figure 11 représente un détail XI de lafigure 6 ; - la
figure 12 représente un détail XII de lafigure 11 .
- the
figure 1 represents a pipe distributor, seen in longitudinal section, the distributor being arranged horizontally; - the
figure 2 represents a chassis part of the distributor of thefigure 1 , seen in longitudinal section, the dispenser being arranged vertically; - the
figure 3 represents a cartridge for use in the dispenser of thefigure 1 , longitudinal sectional view, the cartridge being arranged vertically; - the
figure 4 is analogous to thefigure 3 , the cartridge being shown, in different phases of loading / reloading pipe; - the
figure 5 shows a kit for loading / reloading pipe for the distributor of thefigure 1 ; - the
figure 6 represents the distributor of thefigure 1 seen in perspective and from behind; - the
figure 7 represents the distributor of thefigure 1 seen in plan and behind; - the
figure 8 represents the distributor of thefigure 1 seen in plan and front; - the
figure 9 represents the distributor of thefigure 1 seen in plan and side; - the
figure 10 represents the distributor of thefigure 1 in a vertical position, seen in plan and from above; - the
figure 11 represents a detail XI of thefigure 6 ; - the
figure 12 represents a detail XII of thefigure 11 .
Pour l'essentiel, les dessins annexés comprennent des éléments de caractère certain. Ils pourront donc être utilisés pour la définition de l'invention, le cas échéant.Essentially, the attached drawings include elements of a certain character. They can therefore be used for the definition of the invention, if necessary.
La
Sur la
Le distributeur 1 comprend un châssis 3 doté d'un espace intérieur creux 5 de forme allongée. Cet espace intérieur 5 présente ici une section transversale de forme sensiblement constante sur l'ensemble de son extension, par exemple circulaire ou carrée.The
Le châssis 3 présente une allure générale allongée. Le châssis 3 comprend une première face d'extrémité longitudinale 7, sur laquelle s'ouvre l'espace intérieur 5, et une seconde face d'extrémité longitudinale 9, opposée à la première face d'extrémité 7, qui est ici partiellement ouverte.The
Dans l'espace intérieur 5 est montée une cartouche 11 destinée à recevoir une section de tuyau à déployer. La cartouche 11 présente une allure allongée, ici de révolution. Des moyens de fixation 13 contribuent au maintien de la cartouche 11 dans l'espace 5 de telle manière que cette dernière s'étende sensiblement suivant la direction d'extension de l'espace intérieur 5.In the
Les moyens de fixation 13 sont réversibles, c'est-à-dire qu'ils permettent le montage, le démontage et le remontage de la cartouche 11 dans le châssis 3, sans destruction de pièces mécaniques.The fastening means 13 are reversible, that is to say that they allow the assembly, disassembly and reassembly of the
La cartouche 11 se trouve ainsi montée de manière amovible dans le châssis 3, si bien qu'elle peut être extraite hors de l'espace intérieur 5 à travers la première face d'extrémité 7, en vue notamment de son rechargement avec une nouvelle section de tuyau.The
Le distributeur 1 comprend en outre un guide de déploiement de tuyau sous la forme d'une pièce tronconique, appelée ici cône de sortie 14. Le cône de sortie 14 peut être disposé dans l'espace 5, dans le prolongement de la cartouche 11 et de manière telle qu'il s'évase à mesure qu'il s'éloigne de cette cartouche 11, et que son axe longitudinal corresponde sensiblement à la direction d'extension de cette cartouche 11.The
Dans cette position, le cône de sortie 14 peut être attaché, de manière amovible, au châssis 3 et/ou à la cartouche 11.In this position, the
Pour réaliser une portion de gaine d'aération, on exerce une traction sur le tuyau de façon qu'un segment du tuyau retroussé sorte de la cartouche 11 et s'ouvre à son diamètre nominal en glissant sur le cône de sortie 14. En pratique, il suffit d'avancer le distributeur 1 pour qu'une portion de tuyau de longueur correspondante sorte du distributeur 1 et forme ainsi une portion de gaine d'aération, puisque l'extrémité de la section de tuyau déjà sortie du distributeur 1 est rattachée à la gaine d'aération.To make a portion of a ventilation duct, a pull is exerted on the pipe so that a segment of the rolled up pipe leaves the
La connexion de l'extrémité d'une nouvelle section de tuyau à l'extrémité libre de la gaine d'aération peut se faire à l'aide de moyens tels qu'un accouplement de deux renforts circulaires disposés à ces extrémités, fermeture séparable, une bande à bouclettes, des clips et autres.The connection of the end of a new section of pipe to the free end of the ventilation duct can be done using means such as a coupling of two circular reinforcements arranged at these ends, separable closure, a loop band, clips and others.
La cartouche 11 peut être extraite hors du châssis 3 soit simultanément au cône de sortie 14, en particulier lorsque des moyens de fixation du cône 14 à la cartouche 11 ont été prévus, soit, de préférence, après le démontage de ce cône 14.The
De manière analogue, le cône 14 peut être rattaché à la cartouche 11 et/ou au châssis 3 après insertion de cette cartouche 11 dans l'espace intérieur 5, ou préalablement à cette insertion.Similarly, the
La
La
La cartouche 11 comprend un support 15 pour la section de tuyau, sur lequel celle-ci peut être enfilée et troussée.The
Le support de tuyau 15 présente une allure essentiellement cylindrique, avec ici une section transversale circulaire et creuse. Le diamètre de cette section transversale est tel qu'une section longitudinale de tuyau peut être enfilée et retroussée sur lui. Le support 15 peut ainsi pénétrer à l'intérieur du tuyau, suivant la longueur de ce dernier. Le support 15 forme un guide sur lequel l'ensemble de la section de tuyau peut être enfilée, notamment glissée, et accumulée sous une forme pliée en accordéon. Le cas échéant, des moyens pour la fixation du cône de sortie 14 peuvent être prévus sur le support 15.The
Le support 15 peut être réalisé en tôle métallique de quelques millimètres d'épaisseur, par exemple de 6 millimètres, ou encore en mélaminé, en contreplaqué, en bois, en plastique, en carton et/ou par assemblage de tubes entre eux.The
La cartouche 11 comprend également un flasque 17 attaché à l'une des extrémités axiales du support 15. Le flasque 17 est réalisé sous la forme d'un segment annulaire dont le diamètre intérieur correspond au diamètre extérieur du support 15. Le cas échéant, le flasque 17 peut présenter un diamètre extérieur voisin de celui de l'espace intérieur 5 pour assurer un guidage court/centrage de la cartouche 11 dans l'espace creux 5 et/ou pour permettre un guidage de cette cartouche 11 dans cet espace intérieur 5 lors de l'insertion/extraction de la cartouche 11.The
Au voisinage de son extrémité longitudinale éloignée du flasque 17, le support 15 présente une nervure périphérique 19 qui rigidifie le support. Ici, cette nervure 19 présente une section transversale rectangulaire. Elle peut prendre la forme d'un fer plat.In the vicinity of its longitudinal end remote from the
Optionnellement, la cartouche 11 comprend une pièce d'enveloppe 21 de forme cylindrique, qui peut être disposée autour du support 15. La pièce d'enveloppe 21 vient alors en appui contre le flasque 17 par l'une de ses extrémités longitudinales.Optionally, the
La pièce d'enveloppe 21 est à paroi mince. Elle présente un diamètre extérieur voisin du diamètre extérieur du flasque 17. La pièce d'enveloppe 21 contribue au guidage de la cartouche 11 dans l'espace intérieur 5, aussi bien en position de déploiement de tuyau que lors de l'insertion de la cartouche 11 dans le châssis 3 et de son extraction hors de ce châssis 3.The
Entre la paroi intérieure de la pièce d'enveloppe 21 et la paroi périphérique du support 15 se trouve ainsi ménagé un espace cylindrique de section annulaire qui peut loger le tuyau sous sa forme troussée et enfilée. Ainsi, la section de tuyau se trouve contenue dans la cartouche 11, ce qui facilite le remontage de la cartouche 11 dans le châssis 3 et donc le rechargement du distributeur 1.Between the inner wall of the
De préférence, la pièce d'enveloppe 21 se présente sous la forme d'une pièce qui peut se déployer axialement, par exemple une pièce télescopique, une pièce en plusieurs tronçons mutuellement aboutés, ou encore une pièce souple qui peut être retroussée et inversement déployée. En remplacement, la pièce d'enveloppe 21 peut être monobloc.Preferably, the
La
On dispose la pièce d'enveloppe 21, dans sa forme repliée axialement, autour du support 15, au voisinage de son extrémité longitudinale voisine du flasque 17. On enfile la section de tuyau sur le support 15 et on la retrousse. Au fur et à mesure que le tuyau troussé occupe une portion longitudinale du support 15 de plus en plus grande, on déploie la pièce d'enveloppe 21. La
Le plus souvent, la cartouche 11 est disposée verticalement pour son rechargement.Most often, the
Pour faciliter l'enfilage de la section de tuyau sur le support 15, on peut accoler un guide d'enfilage 23 à la face d'extrémité axiale du support 15 opposée au flasque 17, comme cela est illustré sur la
L'ensemble formé de la cartouche 11 et du guide d'enfilage 23 forme ce que l'on peut appeler un kit de rechargement de cassette. Ce kit peut en outre comprendre une ou plusieurs sections de tuyau sous une forme repliée en bande et en tas.The assembly formed of the
En remplacement de la pièce d'enveloppe 21, ou en complément de celle-ci, une fois qu'une nouvelle section de tuyau est enfilée et troussée sur le support 15, on peut rendre le tuyau solidaire du support 15, par exemple en passant un ou plusieurs liens d'attache mécaniques, de type collier par exemple, dans l'espace intérieur du support 15, autour du tuyau et éventuellement de la pièce d'enveloppe 21.In replacement of or in addition to the
Telle que décrite, la cartouche 11 peut être insérée dans le châssis 3 d'un distributeur 1, c'est-à-dire dans son espace intérieur 5, et y être supportée de manière à former un noyau, c'est-à-dire une pièce cylindrique unique s'étendant suivant la direction longitudinale de cet espace creux.As described, the
Dans une variante, le diamètre intérieur du support 15 est adapté pour que ce dernier puisse s'emmancher autour d'une pièce de noyau de forme cylindrique et fixement attachée au châssis 3, dans l'espace intérieur 5 de ce dernier. Cela permet d'utiliser la cartouche 11 en tant que recharge pour des cassettes de conception classique, c'est-à-dire notamment pour des cassettes à noyau inamovible. En général, le cône de sortie 14 sera, dans ce cas, attaché au noyau inamovible. Autrement dit, le support 15 présente alors un alésage de diamètre adapté pour former un guidage long sur le noyau d'un tel distributeur, ce qui contribue au maintien de la cartouche 11 dans le distributeur 1.Alternatively, the inner diameter of the
Les
Ces moyens de fixation 13 comprennent un ensemble de pattes d'attache 25 solidaires du support 15 de la cartouche 11, destiné à venir en regard d'un cylindre d'attache 27 solidaire du châssis 3. Les pattes d'attache 25 sont mutuellement agencées en deux paires de pattes respectivement disposées en V et reliées au cylindre d'attache 27 par l'intermédiaire d'une tige filetée 29. Le cylindre 27 se trouve disposé entre les branches des V de l'ensemble de pattes d'attache 25. La tige filetée 29 se trouve également située entre ces branches. D'autres réalisations de ces moyens de fixation 13 peuvent comprendre des systèmes à crochet, à grenouillère, à griffe, à verrouillage, à coopération de forme et autres.These fastening means 13 comprise a set of fastening lugs 25 secured to the
Dans certains cas, préalablement à l'introduction de la cartouche 11 dans l'espace creux 5, on peut retirer une pièce formant noyau maintenue dans l'espace intérieur creux.In some cases, prior to the insertion of the
Claims (13)
- Method for positioning a ventilation duct in which there is deployed, by means of a distributor (1), a pipe which is folded in a band-like manner in order to form a duct portion, the distributor (1) comprising a chassis (3) which is provided with a hollow internal space (5), in which there is fixed a support (15), on which a pipe section has been fitted and packed, the support (15) being extended by a deployment cone (14), the method comprising, at the end of the deployment of the pipe section, a reloading phase comprising the following steps:a. detaching the deployment cone (14) from the chassis (3) ;b. installing a new pipe section on the support in a deployment position;c. re-attaching the deployment cone (14) to the chassis (3) ;d. re-connecting the new pipe section to a duct portion;characterized in that the step b. comprises the following operations:b1. removing the support (15) which does not have a pipe from the hollow internal space (5);b2. installing, in the deployment position in the hollow internal space (5), a cartridge (11) which comprises a new support (15) which is similar to the support of the operation b1 and a new pipe section, fitted and packed on this new support (15).
- Method according to Claim 1, wherein the operation b2 comprises a phase of producing a cartridge (11) comprising the following sub-steps:b2.1 providing a support (15) which does not have a pipe;b2.2 fitting and packing a pipe section on the support (15) of the operation b2.1;b2.3 attaching together the fitted and packed pipe section and the support.
- Method according to Claim 2, wherein the operation b2.2 comprises the following sub-operations:b2.2.1 providing a cylindrical tube/envelope portion (21) which comprises flexible material with a diameter less than the diameter of the hollow internal space and which can be deployed axially;b2.2.2 arranging the tube/envelope portion (21) at one of the ends of the support (15);b2.2.3 fitting the pipe section on the other end of the support (15);b2.2.4 packing the pipe section on the support (15);b2.2.5 deploying the tube/envelope portion (21) axially in the direction of the end of the support (15) by which the pipe has been fitted while the pipe section is packed.
- Method according to Claim 3, wherein the operation b2.2.2 involves arranging the tube/envelope portion (21) in a packed state at one of the ends of the support (15) and the operation b2.2.5 involves unfolding the tube/envelope portion (21) in the direction of the end of the support (15) by which the pipe has been fitted while the pipe section is packed.
- Method according to either Claim 3 or 4, wherein the tube/envelope portion (21) is also attached in the step b2.3.
- Method according to any one of Claims 2 to 5, wherein an introduction cone (23) is arranged at one of the ends of the support (15) before the pipe section is fitted on this end.
- Method according to any one of the preceding claims, wherein, in the operation b2, the support (15) of the cartridge (11) is fitted on a component which forms a core which is fixedly retained in the hollow internal space (5).
- Method according to any one of Claims 1 to 6, wherein, in the operation b2, before the cartridge (11) is introduced into the hollow space (5), a component which forms a core retained in the hollow internal space (5) is withdrawn.
- Device for implementing the method according to any one of the preceding claims, comprising a distributor comprising a chassis which is provided with a hollow internal space, characterized in that it comprises a support cylinder which is for fitting and packing the pipe folded in a band-like manner and which has dimensions which are suitable for being received in the hollow internal space (5) of the chassis (3) of the distributor (1) and which is provided with means for retention in this space in a substantially coaxial manner with respect thereto.
- Device according to Claim 9, wherein the cylinder has a body in the form of a cylinder section (15) which has in the region of at least one of the ends thereof an annular reinforcement rib (19).
- Device according to either Claim 9 or 10, wherein the retention means comprise a hole which has a diameter which is suitable for forming a long guide on a component of the core of the distributor (1).
- Device according to any one of Claims 9 to 11, comprising a reloading cartridge which comprises the cylinder, on which a pipe section is fitted, packed and attached.
- Device according to any one of Claims 9 to 12, comprising a reloading kit for the distributor comprising the cylinder and a frustoconical component (23), the large diameter of which is adapted to the diameter of the cylinder for fitting a pipe section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL11290237T PL2390462T3 (en) | 2010-05-26 | 2011-05-23 | Method and accessories for installing an airflow duct in an underground conduit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1002203A FR2960617B1 (en) | 2010-05-26 | 2010-05-26 | METHOD AND ACCESSORIES FOR PLACING AN AERATION SHEATH IN A SUBTERRANEAN CONDUIT |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2390462A1 EP2390462A1 (en) | 2011-11-30 |
EP2390462B1 true EP2390462B1 (en) | 2017-07-26 |
Family
ID=43333001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11290237.4A Active EP2390462B1 (en) | 2010-05-26 | 2011-05-23 | Method and accessories for installing an airflow duct in an underground conduit |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2390462B1 (en) |
ES (1) | ES2644551T3 (en) |
FR (1) | FR2960617B1 (en) |
NO (1) | NO2390462T3 (en) |
PL (1) | PL2390462T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3033590B1 (en) * | 2015-03-13 | 2017-03-24 | Sema | FLOWABLE FLOW VENT AND CONDUIT SEPARATION DEVICE |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0025862B1 (en) * | 1979-09-04 | 1983-07-20 | Maschinenfabrik Korfmann GmbH | Device for extending colliery air ducts |
DE3119813A1 (en) * | 1980-10-23 | 1982-06-03 | Maschinenfabrik Korfmann Gmbh, 5810 Witten | DEVICE FOR EXTENDING A LUTTENLINE |
EP0066000A1 (en) * | 1981-06-02 | 1982-12-08 | Oldorid Kunststoff GmbH | Extension unit for a ventilation tubing |
DE3217566C2 (en) * | 1982-05-11 | 1985-10-03 | Schauenburg Ruhrkunststoff GmbH, 4330 Mülheim | Device for guiding and extending a duct |
-
2010
- 2010-05-26 FR FR1002203A patent/FR2960617B1/en not_active Expired - Fee Related
-
2011
- 2011-05-23 NO NO11290237A patent/NO2390462T3/no unknown
- 2011-05-23 ES ES11290237.4T patent/ES2644551T3/en active Active
- 2011-05-23 EP EP11290237.4A patent/EP2390462B1/en active Active
- 2011-05-23 PL PL11290237T patent/PL2390462T3/en unknown
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
ES2644551T3 (en) | 2017-11-29 |
PL2390462T3 (en) | 2018-01-31 |
FR2960617B1 (en) | 2012-07-06 |
NO2390462T3 (en) | 2017-12-23 |
FR2960617A1 (en) | 2011-12-02 |
EP2390462A1 (en) | 2011-11-30 |
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