EP0829617A1 - Schrämm- und Betoniereinrichtung zum Einbringen eines Schlitzes in eine unterirdische Formation - Google Patents

Schrämm- und Betoniereinrichtung zum Einbringen eines Schlitzes in eine unterirdische Formation Download PDF

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Publication number
EP0829617A1
EP0829617A1 EP97402111A EP97402111A EP0829617A1 EP 0829617 A1 EP0829617 A1 EP 0829617A1 EP 97402111 A EP97402111 A EP 97402111A EP 97402111 A EP97402111 A EP 97402111A EP 0829617 A1 EP0829617 A1 EP 0829617A1
Authority
EP
European Patent Office
Prior art keywords
roof
shield
protective shield
cutting blade
sole
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.)
Withdrawn
Application number
EP97402111A
Other languages
English (en)
French (fr)
Inventor
Yves Le Goer
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.)
Bec Freres SA
Original Assignee
Perforex
Bec Freres SA
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 Perforex, Bec Freres SA filed Critical Perforex
Publication of EP0829617A1 publication Critical patent/EP0829617A1/de
Withdrawn legal-status Critical Current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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1053—Making by using boring or cutting machines for making a slit along the perimeter of the tunnel profile, the remaining core being removed subsequently, e.g. by blasting

Definitions

  • the present invention relates generally the havage of a bleeding underground and the concreting of this one.
  • underground bleeding we mean here a excavation which is carried out in the basement and whose width is small with respect to depth and length.
  • this groove in underground can be straight or curvilinear.
  • the present invention aims more particularly the case where, with regard to the execution of a bleeding in the face of a tunnel being cut digging, for the establishment of a pre-provo at the scour of the corresponding slope, this bleeding is curved, and more precisely in an arch, to the profile of the tunnel to dig.
  • the size, or drilling, of this bleeding is made using the cutting blade of a shearer, and, preferably, to counter as quickly as possible any landslide, its concreting is immediately carried out, as the cutting blade advances.
  • the present invention relates more particularly, again, the case where, as described in the French patent which, filed on July 17, 1991 under No. 91 09021, was published under No 2 679 295, this concreting is done, for more than precaution, protected by a protective shield.
  • this protective shield is coupled to the cutting blade, and it comprises, overall, substantially parallel to each other, a roof intended to follow the bleed extrados carried out by the cutting blade and a sole intended to rest on the lower surface of this bleeding, with, likely to intervene in its volume interior, means of arrival of concrete.
  • the present invention generally has for objects of improvements to the cutting and concreting thus constituted by such a cutting blade and such protective shield.
  • the roof of the protective shield is connected to the sole thereof by at least one spacer.
  • the roof necessarily has a thickness not negligible, especially when its length is itself relatively large, as is the case for example when, the concreting being done by sprayed concrete, the means concrete inlet consist of a spray lance or include such a lance.
  • the sole also necessarily has a significant thickness.
  • this roof can by itself be reduced to a single sheet, and, more precisely, to a single thin sheet, of almost negligible thickness.
  • this sole may itself include, parallel to the members stiffening of the roof, support members, spacers spacing provided according to the invention extending transversely from these stiffening members to these support members.
  • the sole can even advantageously be reduced to a limited number support members each acting individually in the manner skates, without there necessarily being any transverse connection between them.
  • the concreting of the bleeding is done substantially at full volume, for the benefit of optimal filling of this bleeding.
  • the protective shield is coupled to the cutting blade by a hinge with a substantially parallel axis to the direction of elongation of this cutting blade.
  • the assembly is thus advantageously better adapted to satisfy any significant radius of curvature for bleeding, as may for example be the case a right part of this groove corresponding to a right foot of the tunnel to be dug to a curved part corresponding to the keystone of it.
  • flaps of the hinge which is engaged with the shield is hinged to it along an axis substantially parallel to the direction of elongation of the blade cutting, and / or that of the hinge flaps which is in taken with the cutting blade is itself hinged to it along an axis substantially parallel to this direction elongation.
  • the protective shield can, if desired, be internally equipped with a suitable unwinding device to deliver, in a controlled manner, under its roof, near immediate of it, a continuous flexible sheet.
  • This flexible sheet which is for example in material synthetic, advantageously interposes between concrete and field, and it thus advantageously opposes any possibility of untimely mixing of the latter with the latter.
  • the protective shield is suitable for allow a drainage void to be created along the bottom of the tapped, or, for example, that it is equipped internally for this purpose a mask which, placed at a distance from this bottom, is supported on it, that it internally forms a path by which he is able to set up a drain along this bottom, either that it carries itself internally a drain capable of deploying during advancement.
  • the drainage void as well systematically left at the bottom of the groove allows advantageously to mitigate the consequences of a possible pressure rise in the water possibly present in the surrounding land, avoiding untimely dilution of the concrete by this water.
  • the groove 10 is then a curvilinear groove, in the profile of the tunnel to be dug.
  • this cutting and concreting device 13 comprises, overall, a cutting blade 14, which is clean at the size of the groove 10, and a protective shield 15, which is coupled to the cutting blade 14, and sheltered from which are likely to interfere with the concrete arrival means 16.
  • the cutting blade 14 belongs in practice to a cutter.
  • FIG. 4 it comprises, duly carried by a frame 17, a cutting head 18, and that the cutting blade 14 is itself carried, cantilevered, by this cutting head 18, by being duly ordered by it.
  • the cutting blade 14 is also well known by itself, and, not falling, either, in its own right, from the present invention, it will not be described in all of its details here.
  • this blade of cut 14 is generally elongated, in a direction elongation D corresponding to the depth of the groove 10 to be cut, and that it comprises a frame 19, with movable mounting endless loop on this frame 19, in the direction of extension D, at least one chain 20, which, such as shown schematically in broken lines in Figures 2 and 3, is carrier of size 21 tools.
  • the protective shield 15 comprises, overall, substantially parallel to each other, on the one hand, a roof 23, which is intended to follow, preferably as closely as possible, the upper surface 24 of the bleeding 10 carried out by the cutting blade 14, and, on the other part, a sole 25, which is intended to support it on the lower surface 26 of this groove 10.
  • the length L1 of the roof 23, measured perpendicularly in the direction of elongation D of the cutting blade 14, is significantly higher than that L2 of the sole 25 measured under the same conditions.
  • the roof 23 and sole 25 are connected to each other by a backrest 27, according to a general configuration in coated U.
  • the backsplash 27 extends slightly oblique, making an obtuse corner dihedral with the roof 23 and a sharp corner dihedral with the sole 25.
  • the roof 23 of the shield of protection 15 is connected to the sole 25 thereof by spacers 28.
  • the roof 23 is lined internally, over at least part of its length, by at least one stiffening member 29, which extends substantially perpendicular to the direction elongation D of the cutting blade 14, and in favor of which intervenes at least one of the spacers 28.
  • two stiffening members 29 are provided, parallel to each other, at a distance from each other, in each being respectively arranged in the vicinity of the two longitudinal edges 30 of the roof 23, slightly set back by relative to these longitudinal edges 30.
  • these stiffening members 29 extend over almost all the length of the roof 23 from the backsplash 27, in stopping slightly away from the transverse edge end 32 of this roof 23, and they each belong respectively to square pieces 33, of which they constitute one of the branches, while, by the other branch 34 of these square pieces 33, they are reported, by example using screws not shown, on the backsplash 27, with interposition of a square return 35 of the roof 23.
  • the roof 23 can advantageously be reduced to a simple sheet thin.
  • the roof 23 thus formed is duly secured to the stiffening members 29, for example by welding or bolting.
  • the sole 25 of the shield protection 15 comprises, itself, parallel to each of the stiffening members 29 of the roof 23, a support member 36, and the spacers 28 used each extend transversely of such a chord stiffening 29 to such a support member 36.
  • the sole 25 therefore comprises, parallel to each other, distance from each other, two support members 36.
  • the sole 25 of the protective shield 15 is reduced to a limited number of support members 36, in this case two, and the roof 23 is lined internally by an equal number of members of stiffening 29.
  • a stiffening member 29 from roof 23 to supporting member 36 corresponding of the sole 25 extend in parallel to each other, at a distance from each other, at least two spacers 28.
  • only two spacers 28 are provided, perpendicularly to the stiffening members 29 and to the support members 36, and both extend away from the backsplash 27.
  • section balusters circular cross which at their ends are duly secured, for example by welding, to the frame of stiffening 29 and / or to the support member 36 between which they spread.
  • the protective shield 15 is coupled to the cutting blade 14 by a hinge 38 of axis 39 substantially parallel to the direction of elongation D of this last.
  • this hinge 38 extends over the entire width of the shield protection 15.
  • axis 39 In addition to axis 39, it has two flaps 40, one of which is engaged with the cutting blade 14 while the other is in engagement with the protective shield 15, and which, for their articulation to axis 39, form one and the other, alternately with each other, knuckles 42 by which they are in taken in rotation with this axis 39.
  • shutters 40 of the hinge 38 which is in engagement with the cutting blade 14 is articulated thereto along an axis substantially parallel to its direction of elongation D.
  • this component 40 has, along its free edge, a bead 43, of circular cross section, by which it is engaged in a groove 44 of the frame 19 of the cutting blade 14, in favor a slot 45 which, making this groove 44 communicate with the exterior, has, transversely, a dimension less than that of the bead 43.
  • flaps 40 of the hinge 38 which is engaged with the shield protection 15 is also articulated thereto according to a axis substantially parallel to the direction of elongation D of the cutting blade 14.
  • the protective shield 15 comprises, as shown, a box 46, which is attached to the backsplash 27, being closed laterally by it, and which, like the groove 44 of the frame 19 of the cutting blade 14, opens laterally by a slot 48 substantially parallel to the direction of elongation D of this cutting blade 14.
  • the corresponding flap 40 of the hinge 38 is engaged in this box 46 in favor of the slot 48 which this comprises, and, beyond this slot 48, it has, longitudinally, along its edge free, a bead 49, of circular cross section, having a dimension transversely greater than that of this slot 48.
  • the lips 50 of slot 48 are cut down by a chamfer 51 of side of the interior volume of the box 46.
  • the box 46 is delimited, in addition to the backsplash 27, on the one hand, on the lower side 24 of the groove 10, by a plate 52, on which is reported to square a flange 53 which carries the corresponding lip 50 of the slot 48, and, on the other hand, on the side of the lower surface 26 of this groove 10, an angle 54 which carries the other of the lips 50 of slot 48.
  • Plate 52 and angle 54 are duly secured to the backsplash 27, for example by welding.
  • stiffening flanges 56 having each around the slot 48 a cutout 57 to leave play at this level at the hinge 38.
  • the plate 52 is extended by a visor 58 above the hinge 38.
  • the lips 50 of the slot 48 are formed by bars 59 which, thicker than the flange 53 and the angle 54, are each respectively reported on this flange 53 and this angle 54.
  • the slot 48 opens longitudinally outside at that of its ends which is opposite the free end 60 of the cutting blade 14, as can be seen for example in FIG. 3, so that the protective shield 15 can be attached to the blade cutting 14, and, more precisely, on the hinge 38 by which it is attached to it, by simple translation by relative to this cutting blade 14, parallel to the direction of extension D thereof.
  • adjustable holding means 62 are likely to connect the protective shield 15 to the head cutting 18, to allow mechanical adjustment of the angle of the dihedral that the two flaps 40 make between them hinge 38, and thus a control of the position of the shield of protection 15 with respect to the cutting blade 14, in view, by example, to facilitate the introduction of this shield of protection 15 in the groove 10 during its implementation initial in it.
  • adjustable holding means 62 which are not visible in Figure 3, also allow to immobilize the hinge 38 outside the periods of use of the cutting and concreting device 13 formed by jointly this cutting blade 14 and this shield of protection 15.
  • these adjustable holding means 62 are constituted by a hydraulic cylinder 63 or include such a hydraulic cylinder 63.
  • adjustable support 62 are for example arranged at the end an arm 63 ′, which, articulated to the cutting head 18, makes it possible to present them directly above the box 36 of the shield protection 15.
  • the concrete inlet means 16 include a spray lance 64, which, when engaged in the interior volume of the protective shield 15, between the roof 23 and the sole 25 thereof, extends substantially parallel to the backsplash 27 of this protective shield 15, in the vicinity of this backsplash 27, with its projection nozzle 65 turned on the side opposite to this latest.
  • the protective shield 15 can indifferently be coupled to the cutting blade 14 along either of the longitudinal edges of the frame 19 of the latter, this frame 19 being provided with a groove 44, or any other means of attachment, on both of these edges longitudinal.
  • the protective shield 15 is equipped, internally, upstream of the projection lance 64, between the latter and the backsplash 27, of a reel 66 suitable to deliver, in a controlled manner, under its roof 23, to in the vicinity thereof, a flexible sheet 68 continues.
  • this flexible sheet 68 passes over a deflection roller 69 disposed in the immediate vicinity of the roof 23, to be as close as possible to this roof 23 whatever its quantity remaining on the unwinding device 66.
  • the unwinding device 66 is associated with cutting means 70.
  • this cutting means 70 comprises a knife 71, which, disposed at the end of a rod 72 movable mounted in the protective shield 15 transversely with respect to this one, being to do this engaged by a slide 73 with a slide 74 provided for this effect in it extends to the right of the slice of the flexible sheet 68.
  • a handle 75 provided at the end of the rod 72 opposite the knife 71 facilitates the handling of this rod 72, figure 6.
  • a crank 76 to allow if necessary a winding of the flexible sheet 68
  • a brake 77 duly calibrated, for example a band brake type brake, to oppose, on the contrary, an untimely unfolding of this flexible sheet 68.
  • the flexible sheet 68 passes through all case between the spacers 28 provided according to the invention between the roof 23 and the sole 28 of the shield protection 15, and, if desired, these spacers 28 can be arranged as close as possible to the edges longitudinal 30 of the roof 23.
  • the protective shield 15 is formed of several modular segments M1, M2, M3 ... etc ..., each of which corresponds to a particular function, and which are duly assembled to each other, for example using screws not represented.
  • a modular segment M1 which includes the roof 23, the sole 28 and the backsplash 27, a modular segment M2, which includes the unwinding device 66, and which, therefore, communicates by slits with the segment modular M1 previous, and a modular segment M3, which comprises the box 46, and with which is engaged the hinge 38.
  • the shield of protection 15, and, more precisely, the modular segment M1 of it is internally equipped with a guide 78, which extends substantially parallel to its backsplash 27, and, therefore, substantially parallel to the direction of elongation D of the cutting blade 14, for example being duly secured to this backsplash 27, and on which the projection lance 64 of concrete inlet means 16 is slidably mounted.
  • this guide 78 has, in cross section, a T profile, and, to be engaged with him, the projection lance 64 is equipped locally, at least one jumper 79 suitable for enclosing it.
  • the guide 78 advantageously facilitates the positioning of the lance projection 64 in the protective shield 15, according to the arrow F in Figure 8, and then it also ensures advantageously the support of this projection lance 64, in avoiding the bending which it would otherwise be the object of even makes its own weight.
  • the protective shield 15 is adapted to allow to create a drainage void 80 along the bottom 81 bleeding 10.
  • the protective shield 15 is fitted internally of a mask 82, which extends in length between the roof 23 and the sole 25 of this protective shield 15, and which, on its outer face, presents, at least locally, protruding, a spacer spacer 83 by which it is able to wear on the bottom 81 of the groove 10.
  • the mask 82 can be coupled to the box 46.
  • this box 46 has its coupling to this box 46 is made by a pivot (not visible in the figure).
  • the spacer block 83 has preferably the configuration of a skate.
  • spacer blocks 83 can be planned.
  • the protective shield 15 forms internally a path 84 by which it is suitable for installation of a drain 85 along the bottom 81 of the groove 10.
  • this drain 85 is in chute shape, and it is continuously unwound as measurement of the progress of the protective shield 15, with its concavity turned towards the bottom 81 of the groove 10.
  • Figures 12 and 13 the protective shield 15 door, internally, for the establishment of the drainage void 80, a drain 85 'capable of deploy to advancement.
  • this drain 85 is initially folded into an accordion, and it gradually unfolds as the protective shield advances 15.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
EP97402111A 1996-09-13 1997-09-11 Schrämm- und Betoniereinrichtung zum Einbringen eines Schlitzes in eine unterirdische Formation Withdrawn EP0829617A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9611205 1996-09-13
FR9611205A FR2753482B1 (fr) 1996-09-13 1996-09-13 Dispositif de havage et de betonnage pour saignee en souterrain

Publications (1)

Publication Number Publication Date
EP0829617A1 true EP0829617A1 (de) 1998-03-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402111A Withdrawn EP0829617A1 (de) 1996-09-13 1997-09-11 Schrämm- und Betoniereinrichtung zum Einbringen eines Schlitzes in eine unterirdische Formation

Country Status (3)

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EP (1) EP0829617A1 (de)
CZ (1) CZ288006B6 (de)
FR (1) FR2753482B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859821A1 (de) * 1998-12-23 1999-11-18 Tachus Gmbh Verfahren und Vorrichtung für den Tunnelbau
DE10040777A1 (de) * 2000-08-21 2002-03-07 Tachus Gmbh Verfahren und Maschine für den Tunnelbau, Schalelement und Schalsystem
CN103573270A (zh) * 2013-08-02 2014-02-12 石家庄铁道大学 一种tbm弧形顶护盾及利用该顶护盾进行围岩支护的方法
GR1010235B (el) * 2021-06-16 2022-05-19 Χρηστος Γεωργιου Τζεκας Ιδιοκατασκευη διαμορφωσης και επενδυσης ταφρων με σκυροδεμα

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1658769B1 (de) * 1967-07-31 1970-06-18 Wolff & Mueller Tunnelbauverfahren
FR2679295A1 (fr) * 1991-07-17 1993-01-22 Perforex Procede et dispositif pour le betonnage in situ d'une saignee souterraine et lame de coupe correspondante.
EP0557805A1 (de) * 1992-02-28 1993-09-01 TREVI S.p.A. Gerät zum Graben von Tunneln

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1658769B1 (de) * 1967-07-31 1970-06-18 Wolff & Mueller Tunnelbauverfahren
FR2679295A1 (fr) * 1991-07-17 1993-01-22 Perforex Procede et dispositif pour le betonnage in situ d'une saignee souterraine et lame de coupe correspondante.
EP0557805A1 (de) * 1992-02-28 1993-09-01 TREVI S.p.A. Gerät zum Graben von Tunneln

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859821A1 (de) * 1998-12-23 1999-11-18 Tachus Gmbh Verfahren und Vorrichtung für den Tunnelbau
WO2000039434A1 (de) * 1998-12-23 2000-07-06 Tachus Gmbh Verfahren und vorrichtung für den tunnelbau
DE10040777A1 (de) * 2000-08-21 2002-03-07 Tachus Gmbh Verfahren und Maschine für den Tunnelbau, Schalelement und Schalsystem
CN103573270A (zh) * 2013-08-02 2014-02-12 石家庄铁道大学 一种tbm弧形顶护盾及利用该顶护盾进行围岩支护的方法
GR1010235B (el) * 2021-06-16 2022-05-19 Χρηστος Γεωργιου Τζεκας Ιδιοκατασκευη διαμορφωσης και επενδυσης ταφρων με σκυροδεμα

Also Published As

Publication number Publication date
FR2753482A1 (fr) 1998-03-20
CZ287397A3 (cs) 1998-04-15
FR2753482B1 (fr) 1998-12-04
CZ288006B6 (cs) 2001-03-14

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