JP6468605B2 - Method for attaching traveling device in concrete formwork support device - Google Patents

Description

  The present invention relates to a method for attaching a traveling device to a support device for supporting a concrete formwork such as a tunnel lining formwork.

Patent Document 1 discloses a support device for supporting a concrete formwork for tunnel lining.
As shown in FIGS. 9A and 9C, such a concrete mold 12 (hereinafter simply referred to as a mold) is supported on a gantry-shaped support device 11. The support device 11 is installed at the assembly position of the mold in the tunnel T.

  The mold 12 shown in FIGS. 9A and 9C includes a plurality of ceiling foams 13 positioned at the top of the same mold 12, a plurality of side foams 14 positioned below both sides of each ceiling foam 13, and each A plurality of invert foams 15 positioned below the side foam 14 are juxtaposed along the extending direction of the tunnel T. Each of these foams 13, 14, and 15 is configured by fixing skin plates 131, 141, and 151 that form a concrete molding surface on a reinforcing frame (see FIG. 10).

  The support leg 18 of the support device 11 is provided with a jack 16. The support device 11 is raised and lowered by the expansion and contraction of the jack 16. Then, the ceiling foam 13 is assembled to the support device 11 while the support device 11 is lowered, and the support device 11 is raised. Thereafter, the side form 14 and the inverted form 15 are assembled to the support device 11 in this order to form the mold 12.

Then, in the ascending state of the support device 11, concrete C is placed between the skin plates 131, 141, 151 of the mold 12 and the inner wall surface of the tunnel.
Below, the conventional assembly method of the formwork 12 is demonstrated in detail.

  First, as shown in FIGS. 1A and 1C and FIGS. 2A and 2C, the support device 11 is installed at the formwork assembly position in the tunnel T. At this time, since the jack 16 of the support leg 18 is contracted, the support device 11 is entirely in the lowered position. In this lowered state, a plurality of ceiling foams 13 are supported in parallel on the upper portion of the support device 11.

  Next, as shown in FIGS. 3A and 3C, the jack 16 of the support leg 18 is extended, and the support device 11 is raised so that the ceiling foam 13 approaches the inner peripheral top surface of the tunnel T. The

  Next, as shown in FIGS. 4 (a) and 4 (c), rails 17 are laid on both sides of the ground surface of the tunnel T. The rail 17 extends from the support device 11 to the rear side (wife side) of the tunnel T, and the length of the rail 17 is required to be at least the front and rear length of the support device 11 on the wife side. Moreover, in order to secure an upper space for various operations on the upper side of the support device 11, the rail 17 at the assembly position of the formwork is laid in a subsidence position, that is, a lower position in a groove or the like excavated in the ground. . For this reason, the rail 17 extending rearward is also installed at the subsidence position by excavating the ground in the same manner. And the lower leg 183 is added to the lower end of the support leg 18 which is in a state of floating from the ground due to the extension of the jack 16.

Next, traveling devices 20 and 21 having wheels 19 are attached to the lower ends of the lower legs 183, the jacks 16 are contracted, the wheels 19 are placed on the rails 17, and the support device 11 is connected to the rails 17 via the wheels 19. Supported by Wherein one is mounted travel drive motor is in the traveling device 20, 21, by the driving of the traveling drive motor, the supporting device 11 can be self-propelled along the rail 17.

  Thereafter, as shown by a solid line in FIG. 5A, the support device 11 in a state of supporting the ceiling form 13 is moved to the end of the tunnel T and is disposed from the concrete placing position to the retracted position.

  Then, as shown in FIGS. 6A and 6C, the side foam 14 is carried by the wrecker boom W to the assembly position of the formwork while the support device 11 is disposed at the retracted position, and the tunnel is It is leaned against the inner wall surfaces on both sides of T (the state where the side foam 14 is leaned on one side is shown in FIG. 6C), and is temporarily placed in this state. Therefore, the movement of the support device 11 to the retracted position on the wife side is to secure a space for carrying the side foam 14 and a space for leaning the side foam 14.

  After that, as shown in FIGS. 7A and 7C, the support device 11 is moved back to the formwork assembly position, and the leaning side foam 14 is provided by a chain block (not shown) provided at the inner top portion of the tunnel T. It is lifted one by one and connected to the lower end of each ceiling form 13.

  Further, as shown in FIGS. 8A and 8C, the support device 11 retreats again from the concrete placement position to the end of the tunnel T, and the invert form 15 is placed on both sides of the ground at the concrete placement position. It is carried in by the boom W and installed on the ground in a lying state (FIG. 8 (c) shows only the invert form 15 installed on one side) and temporarily placed.

  Then, as shown in FIGS. 9 (a) and 9 (c), the support device 11 returns to the concrete placing position, and the inverted invert foam 15 is lifted one by one by the chain block, and the side foam 14 It is connected to the lower end.

Thus, FIG. 9 (a), the as shown in (c), the formwork assembly position of the formwork 12, which is also the concreting position is installed. Thereafter, a spacer (not shown) is interposed on the lower surface side of the rail 17, and the rail 17 is raised from the subsidence position. For this reason, the formwork 12 is arranged at the concrete placement position approaching the inner wall surface of the tunnel T via the support device 11, and the concrete C is placed at this position. Then, every time the concrete C is hardened, the support device 11 is moved on the rail 17 to the wife side, and the concrete C is sequentially placed toward the wife side. Finally, the mold 12 is disassembled in the reverse order of the assembly process. However, in this case, it is not necessary to sink the rails 17.

Japanese Patent Laid-Open No. 2005-282096

However, the conventional wheel mounting method described above has the following problems.
That is, the traveling device 20, 21, running device 20, in particular having a drive motor is heavy because of such driving motor and deceleration mechanism. And although the rail 17 is laid in the left-right position, since it is 1 line | wire on one side, the wheel of the traveling apparatus 20 which drive | works on the rail 17 is arrange | positioned on one line. Accordingly, the traveling device 20 does not straddle between the left and right rails 17 in a state before being attached to the leg portions 181 and 182, and is unstable because it is a single unit. For example, the traveling device 20 moves on the rails 17. Even if it is transported in such a way, it is extremely difficult and practically impossible to move it to the mounting position by human power, in addition to being heavy. Therefore, conventionally, it is necessary to carefully attach the traveling device 20 using the tow boom W as described above, which takes time and is difficult to shorten the construction period.

This difficulty is the same in the case of dismantling the formwork.
The objective of this invention is providing the attachment method of the traveling apparatus which can perform attachment and disassembly of the traveling apparatus with respect to a leg part easily.

  In order to achieve the above object, in the present invention, in an attachment method for attaching a traveling device to a leg portion of a support device on which a concrete formwork is mounted, a conveyance rail is fixed to the support device, and the conveyance rail The traveling device is supported by a moving body that moves above, and is transported to the position of the leg portion.

  Therefore, since the traveling device is transported by the moving body that moves on the transport rail, it can be transported easily.

  ADVANTAGE OF THE INVENTION According to this invention, there exists an effect which attachment and disassembly of a traveling apparatus with respect to the leg part of the support apparatus of a formwork become easy.

It shows the time of construction of a ceiling foam, where (a) is a side view showing a conventional method, (b) is a side view showing an embodiment, (c) is a front view showing the conventional method, and (d) is an implementation. The front view which shows a form. Similarly, when the ceiling foam is constructed, (a) is a side view showing a conventional method, (b) is a side view showing when the rail of the embodiment is attached, and (c) is a front view showing the conventional method. (D) is a front view which shows the attachment state of the rail of embodiment. It shows a jack-up state, (a) is a side view showing a conventional method, (b) is a side view showing an embodiment, (c) is a front view showing the conventional method, and (d) is an embodiment. FIG. 1 shows a state of attachment of a traveling device, (a) is a side view showing a conventional method, (b) is a side view showing an embodiment, (c) is a front view showing the conventional method, and (d) is an implementation. The front view which shows a form. FIG. 2 shows a retracted state of the support device, in which (a) is a side view showing a conventional method, and (b) is a side view showing an embodiment. It shows the carrying-in state of a side foam, (a) is a side view showing a conventional method, (b) is a side view showing an embodiment, (c) is a front view showing the conventional method, and (d) is an implementation. The front view which shows a form. It shows the attached state of the side foam, where (a) is a side view showing a conventional method, (b) is a side view showing an embodiment, (c) is a front view showing the conventional method, and (d) is an implementation. The front view which shows a form. It shows the state of carrying in an inverted form, where (a) is a side view showing a conventional method, (b) is a side view showing an embodiment, (c) is a front view showing the conventional method, and (d) is an implementation. The front view which shows a form. It shows the mounting state of the invert form, (a) is a side view showing a conventional method, (b) is a side view showing an embodiment, (c) is a front view showing a conventional method, (d) is an implementation. The front view which shows a form. Sectional drawing which shows the support state of an upper conveyance rail. Sectional drawing which shows the support state of a lower conveyance rail. Sectional drawing which shows the conveyance state of a traveling apparatus.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings. In the following description of the embodiment, the description of the same method portion as the conventional method is omitted or simplified.
In the present embodiment, as shown in FIG. 9, a plurality of foams 13, 14, 15 in which skin plates 131, 141, 151 are stretched on the outer surface of the reinforcing frame 24 (FIG. 10 shows the ceiling foam 13). ) Is provided on the support device 11.

  That is, in the first embodiment, first, as shown in FIGS. 1B and 1D, a plurality of foams as existing foams are formed on the top of the support device 11 in the lowered position due to contraction of the jack 16 in the tunnel T. The ceiling form 13 is supported in a juxtaposed state. That is, in a state where the work on the support device 11 is easy to perform, that is, in a state where the support device 11 is in the lowered position and a wide work space is formed above the plurality of ceiling foams 13 are assembled to the upper portion of the support device 11. .

  Next, as shown in FIGS. 2 (b), 2 (c), and FIG. 10, the gripped portion 33 on the upper conveyance rail 32 is gripped by a plurality of clamps 31 against the flange 23 at the lower end on both sides of the ceiling foam 13. They are connected (only one side of the ceiling form 13 is shown in FIG. 2 (d)). Accordingly, the upper transport rail 32 is supported by the support device 11 via the ceiling form 13. The upper transport rail 32 extends in the front-rear direction, opens the lower portion, and rail surfaces 34 are formed on both sides of the open portion. On the rail surface 34, a main body 36 with a built-in motor of an electric winch 35 is supported so as to be movable in the front-rear direction by a roller 371 of a moving body 37 thereabove. The electric winch 35 has a hook 39 at the lower end of the chain 38.

  3 (b) and 3 (d), the support device 11 is lifted by the extension of the jack 16, and the ceiling foam 13 approaches the inner top surface of the tunnel T after the upper transport rail 32 is attached. Placed in.

  Next, as shown in FIGS. 4B and 4D, rails 17 extending in the front-rear direction are laid on both sides of the ground surface of the tunnel T. Unlike the conventional method shown in FIGS. 4A and 4C, the rail 17 may have a length corresponding to the depth length at the same position at the position corresponding to the mold assembly position, and is extended to the rear. There is no need to

  Further, as shown in FIGS. 4B, 4D, 11 and 12, a plurality of clamp members as a clamp member with respect to the left and right structural members 111 constituting the legs 181 and 182 on both sides of the support device 11 are provided. The clamped bracket 40 grips and connects the gripped portion 43 at the top of the lower transport rail 41. The lower transport rail 41 opens the lower portion in the same manner as the upper transport rail 32, and rail surfaces 44 are formed on both sides of the open portion. A pair of lower transport rails 41 is provided on each of the structural members 111. On the rail surface 44 of each lower transport rail 41, a main body 46 incorporating a motor of an electric winch 45 is supported by a roller 471 on the upper movable body 47 so as to be movable in the front-rear direction. The electric winch 45 has a hook 49 at the lower end of the chain 48.

  4 (b), (d), FIG. 11 and FIG. 12, the heavy-duty travel device 20 having the travel drive motor 22 on the hooks 49 at the left and right positions of the support device 11 is provided on both the left and right sides. It is suspended and transported to a predetermined position corresponding to the leg portion 181 on the lap side.

  On the other hand, the lower leg 183 is connected to the lower portions of the leg portions 181 and 182 by bolts and nuts (not shown) before and after the conveyance of the traveling device 20. The traveling device 20 is attached to the lower leg 183 of the lap side leg 181 by bolts 50 and 51.

  The lightweight traveling device 21 that does not have the traveling drive motor 22 is moved to a position corresponding to the leg 182 on the wife side, which is the back side of the tunnel, and the traveling device 21 is moved to the lower leg 183 of the leg 182 on the wife side. It attaches with the volt | bolt 50 and the nut 51 similarly to. The travel device 21 may be moved by using a tow boom or may be traveled on the rail 17 by human power.

  Thereafter, the jack 16 is contracted, the jack 16 is separated from the ground, and the wheels 19 of the both traveling devices 20 and 21 are placed on the rail 17 as shown in FIG. Around this time, the lower transport rail 41 is removed together with the electric winch 45 and the like.

Then, as shown in FIG. 5B, unlike the conventional method, the support device 11 in a state of supporting the ceiling form 13 is stopped and maintained at that position.
Next, as shown in FIGS. 6B and 6D and FIGS. 7B and 7D, an existing foam and another foam are formed on the hook 39 of the electric winch 35 on the left and right upper transport rails 32 side. The side foam 14 is suspended, and the side foam 14 is moved one by one along the extending direction of the upper conveyance rail 32 together with the electric winch 35 by human power, and is connected to the lower end of the ceiling foam 13.

  Further, as shown in FIGS. 8B and 8D and FIGS. 9B and 9D, the invert form 15 as another form is suspended from the hook 39 of the electric winch 35 on the upper conveyance rail 32 side. Then, it is transported and moved one by one to the wife side by human power and connected to the lower end of the side foam 14. Thereafter, the upper transport rail 32 is removed together with the electric winch 35 and the like.

  Thus, the formwork 12 of this embodiment is installed in the position corresponding to a concrete molding position. Thereafter, the rail 17 is raised and concrete C is placed between the skin plate 25 of the mold 12 and the inner wall surface of the tunnel T. When the cast concrete C is hardened, the support device 11 supports the mold 12 and is moved on the rail 17 to the wife side. The concrete C is cast and this is repeated.

  In the dismantling of the mold 12 after the concrete C is hardened, work in the reverse order to the assembly procedure is performed. However, in this case, the rail 17 is held in the raised position without being sunk.

The present embodiment has the following effects.
(1) Since the travel device 20 having the travel drive motor 22 can be transported and moved along the lower transport rail 41 to the position of the leg 181, the wheels 19 are aligned even if the travel device 20 is heavy. Even if the unstable structures are arranged, the traveling device 20 can be transported in a stable state and can be easily connected to the legs 181 without using the wrecker boom W. Moreover, the traveling device 20 can be easily disassembled and removed from the leg portion 181 by this reverse order. Therefore, the construction period can be shortened as compared with the conventional method.

  (2) Since the lower conveyance rail 41 is supported by the structural material 111 of the support device 11 by gripping the clamp fitting 40 as described above, the conveyance rail 41 can be firmly fixed to the structural material 111 and the clamp fitting By removing 40, the conveyance rail 41 can be easily disassembled and removed from the structural material 111.

  (3) Since the lower transport rail 41 is supported by the structural member 111 of the support device 11 by gripping the clamp fitting 40, it is not necessary to modify the support device 11 to support the lower transport rail 41, and the conventional support The apparatus 11 can be used as it is.

  (4) As shown in FIGS. 6B and 6D and FIGS. 7B and 7D, the side foam 14 is suspended in a state of being suspended along the upper conveyance rail 32 on the side of the support device 11. It is transported to the assembly position and connected to the ceiling form 13. Accordingly, as shown in FIGS. 6A and 6C and FIGS. 7A and 7C, the support device 11 is wrapped as compared with the conventional method of transporting the side foam 14 using the wrecker boom W. There is no need to move between the mold forming position corresponding to the concrete molding position on the side and the retracted position on the wife side. Therefore, the work becomes easy and the work period can be shortened.

  (5) As shown in FIGS. 8B and 8D and FIGS. 9B and 9D, similarly to the side foam 14, the inverted foam 15 extends along the upper conveyance rail 32 on the side of the support device 11. Then, it is transported to a predetermined assembly position in a suspended state and connected to the side foam 14. Therefore, as shown in FIGS. 8A and 8C and FIGS. 9A and 9C, the support device 11 is made of concrete as compared with the conventional method of conveying the invert form 15 using the tow boom W. There is no need to move between the molding position and the retracted position. Therefore, the construction period can be shortened.

  (6) As shown in FIGS. 6 (a) and 6 (c) and FIGS. 7 (a) and 7 (c) and FIGS. 8 (a) and 8 (c) and FIGS. 9 (a) and 9 (c), the side foam Since it is not necessary to lean 14 on the inner wall surface of the tunnel T or to lay the inverted foam 15 on the ground, it is possible to prevent the foams 14 and 15 from becoming dirty. Therefore, it is not necessary to remove the dirt from the foams 14 and 15, and the construction period can be shortened.

  (7) Since the upper conveyance rail 32 is fixed to the ceiling foam 13 by the clamp fitting 40, the conveyance rail 32 can be easily attached and detached by detaching the clamp fitting 40. Moreover, since the upper conveyance rail 32 is supported by the ceiling form 13, it is not necessary to modify the support device 11 to support the upper conveyance rail 32.

  (8) In order to support the upper conveyance rail 32 on the lower end of the ceiling foam 13, the side foam 14 and the invert foam 15 connected to the lower side of the ceiling foam 13 are conveyed, and can be easily formed on the lower side of the ceiling foam 13. Can be connected and disassembled.

(Example of change)
In the above embodiment, the travel device 20 having the drive motor 22 is transported along the lower transport rail 41. However, the travel device is not provided with the drive motor 22 by extending the transport rail 41 rearward. 21 can be transported.

-In the said embodiment, although the conveyance rail was supported by the support apparatus 11, it is supported by the foam on the support apparatus 11. FIG .

  DESCRIPTION OF SYMBOLS 11 ... Support apparatus, 12 ... Formwork, 19 ... Wheel, 20 ... Traveling apparatus, 22 ... Traveling drive motor, 37 ... Moving body, 40 ... Clamp metal fitting, 41 ... Lower conveyance rail, 47 ... Moving body, 111 ... Structural material , 181 ... legs, 182 ... legs.

Claims (2)

In the mounting method of attaching a traveling device capable of traveling on a pair of rails laid on the ground of the tunnel to the legs of the supporting device on which the concrete formwork is mounted,
On both sides of the tunnel transverse structural member constituting each leg of the supporting device is provided with a transport rail extending removably tunnel longitudinal direction by clamping members respectively, provided on the moving body that travels on each conveyor rail The traveling device is suspended from the winch and moved to the position of the leg portion of the support device , the travel device is connected to the leg portion, and the support device is lowered so that the wheels of the traveling device are placed on the ground rail. A method for attaching a traveling device in a concrete formwork supporting device to be placed on a wall . The method for attaching a traveling device in a concrete formwork support device according to claim 1, wherein a traveling device equipped with a motor is transported along the transport rail.

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