JP3024945B2 - Wife formwork device for placing concrete in tunnel lining - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wife formwork apparatus for placing concrete in a tunnel lining.

[0002]

2. Description of the Related Art
As shown in FIGS. 5 and 6, at the time of tunnel lining, when concrete 23 is poured into the gap 22 between the arch formwork 28 disposed in the tunnel and the tunnel inner surface 21, the opening of the gap 22 is formed.
The required number of end plates 24 are arranged in parallel in order to close the opening 29, and these end plates 24 are pressed from the outer surface by pressing devices 25, respectively, to close the openings 29.

In such a conventional method, it is difficult to securely fix the end plate 24 at a predetermined position.
The work for mounting and fixing 24 could not be performed efficiently.

Further, it is difficult to accurately attach and fix the end plate 24 to the inner surface 21 of the tunnel, and appropriate members are packed between the end plate 24 and the inner surface 21 of the tunnel or between the end plates 24 so that the concrete 23 does not leak. Or

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and is capable of accurately fixing a base plate at a predetermined position and having very good workability. An apparatus is provided.

[0006]

The gist of the present invention will be described with reference to the accompanying drawings.

[0007] A wand form device for placing concrete in a tunnel lining concrete which closes an opening 20 of a gap 19 between a formwork 18 provided in the tunnel and an inner surface 16 of the tunnel. A telescopic body 3 is provided on a front side of a main frame 2 on which a main plate 1 is mounted.
Is pivotally mounted near the tip of the wife formwork 2 and the proximal end is
10 through a first guide mechanism 26 that allows the base side to swing, and the length direction of the tunnel of the end form 2 and the inner surface of the tunnel.
The base side of the wand form 2 and the mounting portion 10 are connected to each other via a second guide mechanism 27 that allows movement in the combined direction of both 16 directions and movement of the wand form 2 toward the inner surface 16 of the tunnel. It is related to.

Further, in the wand formwork apparatus for placing concrete in a tunnel lining concrete according to the first aspect, a plurality of wedges are formed to close as much as possible the opening 20 of the gap 19 between the formwork 18 and the inner surface 16 of the tunnel. This is related to arranging the formwork 2 side by side.

[0009] Further, the present invention relates to a wife formwork apparatus for placing concrete on a tunnel lining concrete, which closes an opening 20 of a gap 19 between a formwork 18 provided in the tunnel and the inner surface 16 of the tunnel. A tip end of a cylinder 3 for moving the wife form 2 in a diagonal direction which is a combined direction of both the tunnel length direction and the tunnel inner surface 16 direction and the tunnel inner surface 16 is pivotally mounted near the tip of the wife form 2. A guide pin 4 is provided on the base end side of the base 3, a mounting portion 10 is provided on the formwork 18 to protrude forward, and the guide pin 4 is fitted into a guide hole 6 of the guide plate 5 fixed to the mounting portion 10. The upper part of the guide plate 8 fixed to the mounting part 10 is movably fitted and locked, and the upper part of the guide plate 8 is vertically elongated and the lower part is connected to the elongated hole and extends obliquely downward and forward. A guide hole 9 is formed at the base of the end form 2 Idopin 7 relates to movably be inserted and engaged with the.

Further, in the end form device for placing concrete in a tunnel lining according to claim 3, an elastic body 11 for abutting the end of the end plate 1 or end form 2 on the inner surface 16 of the tunnel.
Is provided.

Further, in the spout formwork apparatus for placing concrete in a tunnel lining according to any one of claims 1 to 4,
In order to connect and fix the mounting portion 10 and the wife formwork 2, the mounting portion 10
And a hole 14 into which the wedge holder 12 can be inserted into the wife formwork 2.
a, 14c, and the base end side of the wedge holding bracket 12 is
Is formed to be larger than the inner diameter of the hole 14 so that
And a hole 17 into which the wedge 13 can be fitted is provided in a portion which is inserted into the hole and protrudes from the hole 14.

[0012]

Operation and effect of the present invention For example, the formwork 18 and the inner surface of the tunnel
In order to securely close the opening 20 of the gap 19 with the
It is not sufficient to pivotally attach the lid member to the edge of the cover and slide the lid member. After the lid member has moved, it is necessary to further raise the lid member, which is to bring the lid member into close contact with the inner surface 16 of the tunnel.

In this respect, according to the present invention, the formwork 18 is provided with a mounting portion 10 protruding forward, and the expandable body 3 is arranged in an inclined state on the front side of the formwork 2 on which the formwork plate 1 is mounted. The distal end of the body 3 is pivotally mounted near the distal end of the wand form 2, and the base end is connected to the mounting portion 10 via a first guide mechanism 26 that allows the base side to swing. 2 through a second guide mechanism 27 that allows movement in the combined direction of both the tunnel length direction and the tunnel inner surface 16 direction and the movement of the wand form 2 toward the tunnel inner surface 16.
The base side and the mounting portion 10 are connected to each other, so that the telescopic body 3 does not need to perform two operations of sliding and raising, and two drive mechanisms for the two operations are not required. Accordingly, the present apparatus is a simpler apparatus, and the present invention is configured as described above, so that the wand formwork 2 can be set at a predetermined position with higher accuracy than before, and after the concrete is put and cured, The formwork 2 can be separated from the concrete casting surface with high accuracy, and the work of installing and moving the wife formwork 2 can be performed with very good workability.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an embodiment of the present invention;

As shown in FIGS. 1 and 2, the apparatus of this embodiment is a wand formwork apparatus used for placing concrete 15 at the time of tunnel lining. A tunnel lining concrete casting wand form device for closing an end opening 20 of a gap 19 between a frame 18 and a tunnel inner surface 16 in a tunnel length direction, the mounting portion protruding forward from the form 18. 10 is provided, and an upper end pivoting portion 3 'is provided near the front end on the front side of the end form 2 on which the end plate 1 is mounted, and the tip end of the hydraulic cylinder 3 is pivotally attached to the upper end pivoting portion 3'. A guide pin 4 provided on the base end side of the hydraulic cylinder 3 is movably fitted and locked in a long guide hole 6 rising forward (right shoulder) of a guide plate 5 fixed to a mounting portion 10, The hydraulic cylinder 3 is disposed on the mounting portion 10 in an inclined state, and a guide pin 7 provided at a lower portion (base portion) of the end form 2 is provided. A guide hole 9 formed in a guide plate 8 fixedly mounted on the mounting portion 10 has an upper portion formed in an elongated hole extending vertically and a lower portion formed in a continuous hole with the elongated hole and extending obliquely forward (right) downward. Are movably fitted and locked.

Further, an elastic body 11 such as rubber for contacting the inner surface 16 of the tunnel is provided on the upper end (tip) of the end plate 1 or end form 2 so as to be connected to the end plate 1.

In addition, at the time of concrete casting, in order to connect and fix the mounting portion 10 to the end plate 1 and the end form 2, the mounting portions 10 and
Holes 14 a, 14 b, and 14 c are provided in the end plate 1 and the end form 2, into which the wedge holder 12 connected to the mounting portion 10 can be inserted. The wedge press fitting 12 was formed larger than the inner diameter, the wedge press fitting 12 was inserted into the hole 14, one end side was locked in the hole 14, and the other end side was connected to the hole form 2 provided in the wedge press fitting 12 to the end mold 2. Wedge 13
Can be fitted.

When the concrete 15 is cast in the state shown in FIG. 2 and the concrete 15 is cast and cured, FIG.
As shown in FIG. 3, the hydraulic cylinder 3 is contracted, the guide pin 4 is moved to the upper right end of the guide hole 6, the wedge 13 is removed from the wedge holding bracket 12, and the hydraulic cylinder 3 is further contracted. The guide pin 7 provided at the lower part moves downward from the upper and lower slots of the guide hole 9 to the slot extending obliquely downward to the right, and the end form 2 is separated from the concrete casting surface.

When the hydraulic cylinder 3 is further contracted, FIG.
As shown in the figure, the guide pin 7 provided at the lower part of the wife form 2 moves to the lower end of the elongated hole extending obliquely downward to the right of the guide hole 9, and the wife form 2 is substantially moved with respect to the concrete casting surface. It will be in a parallel state.

Next, in order to place the concrete form 15 on the concrete placing surface in order to place the concrete 15 using the apparatus shown in FIG. 3, first, the hydraulic cylinder 3 is extended and the hydraulic pressure is increased. Guide pin 4 provided at the lower end of cylinder 3
To the lower left end of the guide hole 6, and further extend the hydraulic cylinder 3 to move the guide pin 7 provided at the lower part of the wife form 2 to the upper left of the guide hole 9 to move the wife form 2. Move closer to the concrete casting surface.

Subsequently, as shown in FIG.
The hydraulic cylinder 3 is extended to move the guide pin 7 provided at the lower part of the end form 2 to the long hole above and below the guide hole 9, and the elastic body 11 provided at the upper part of the end plate 1 is brought into close contact with the inner surface 16 of the tunnel. Then, the wedge holding metal fittings 12 are fitted into the holes 14 (14a, 14b, 14c) provided in the mounting portion 10 and the wand plate 1 and the wand formwork 2, and the wedges 13 are fitted into the holes 17 provided in the wedge holding metal fittings 12. The connecting part 10 is securely connected and fixed to the end plate 1 and the end form 2.
Thus, the end form 2 can be installed on the concrete casting surface with high accuracy.

The apparatus of this embodiment is provided with a plurality of openings 20 as appropriate to close the opening 20 of the gap 19 between the tunnel inner surface 16 and the formwork 18 as much as possible. Concrete 15 can be poured into the entire gap 19 of the concrete.

As described above, the end mold apparatus for placing concrete in a tunnel lining according to the present embodiment, for example, in order to reliably close the opening 20 of the gap 19 between the formwork 18 and the inner surface 16 of the tunnel, It is not sufficient to simply pivot the lid member on the edge of the formwork 18 and slide the lid member, and after the lid member has moved, the lid member is further moved upward to bring the lid member into close contact with the inner surface 16 of the tunnel. In this regard, in this regard, the present embodiment
The cylinder 3 is arranged in an inclined state on the front side of the end mold 2 on which the end plate 1 is mounted, and the tip of the cylinder 3 is pivoted toward the end of the end form 2. The base end is connected to the mounting portion 10 through the guide hole 6 of the guide plate 5 that allows the base end to swing. Through the guide hole 9 of the guide plate 8 which allows movement in the compound direction and movement of the wife form 2 in the direction of the tunnel inner surface 16, the base side of the wife form 2 and the mounting portion
Since the cylinder 10 and the cylinder 10 are connected to each other, the cylinder 3 does not need to perform the two operations of the gliding and the rising, and the two driving mechanisms for the two operations are not required. Therefore, the present apparatus is a simpler apparatus, and furthermore, since the present embodiment is configured as described above, the wife formwork 2 can be installed at a predetermined position with higher precision than before, and after the concrete is cured, The wife form 2 can be separated from the concrete casting surface with high precision, and the installation of the wife form 2
The moving work can be performed with very good workability.

Further, since the elastic body 11 for contacting the inner surface 16 of the tunnel is provided at the end of the end plate 1 or end form 2,
When the wife form 2 is installed at a predetermined position, the elastic body 11 provided at the end of the wife form 1 or the wife form 2 can be brought into close contact with the inner surface 16 of the tunnel, and the gap between the tunnel inner surface 16 and the wife plate 1 can be provided. The concrete 15 can be prevented from leaking.

Even when the inner surface 16 of the tunnel has irregularities, by bringing the elastic body 11 into contact with the irregular surface, the uneven surface and the elastic body 11 are brought into close contact with each other, and a gap can be formed. Since there is no concrete, leakage of the concrete 15 can be eliminated.

Also, since the mounting portion 10 and the end form 2 can be connected and fixed, the end form 2 installed at a predetermined position does not move at the time of placing the concrete 15, and the concrete 15 can be accurately driven. Can be set up.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a use state of an embodiment of the present invention.

FIG. 2 is a side view showing an apparatus according to one embodiment of the present invention.

FIG. 3 is a side view showing an apparatus according to an embodiment of the present invention.

FIG. 4 is a side view showing an apparatus according to an embodiment of the present invention.

FIG. 5 is an explanatory diagram showing a use state of a conventional device.

FIG. 6 is an explanatory diagram showing a use state of a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wife plate 2 Wife formwork 3 Elastic body, cylinder 4 Guide pin 5 Guide plate 6 Guide hole 7 Guide pin 8 Guide plate 9 Guide hole 10 Mounting part 11 Elastic body 12 Wedge holder 13 Wedge 14 hole 14a hole 14c hole 16 Tunnel inner surface 17 holes 18 Formwork 19 Clearance 20 Opening 26 First guide mechanism 27 Second guide mechanism

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroaki Yasuda 209 Ogifu, Takaoka City, Toyama Prefecture In-house (72) Inventor Shinji Kataoka 209 Ogifu, Takaoka City, Toyama Prefecture In-house Saga Industry Corporation (56) References JP Hei 6-212896 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E21D 11/10

Claims (5)

(57) [Claims] 1. A spout formwork apparatus for placing concrete in a tunnel lining concrete for closing an opening of a gap between a formwork disposed in a tunnel and an inner surface of the tunnel, wherein the mounting form projects forward from the formwork. The telescopic body is provided in an inclined state on the front side of the wand form to which the wand plate is attached, the distal end of the expandable body is pivotally mounted near the front end of the wand form, and the base end is attached to the mounting part. Connected via a first guide mechanism that allows swinging of the base end side, movement of the wife formwork in the combined direction of both the tunnel length direction and the tunnel inner surface direction and movement of the wife formwork in the tunnel inner surface direction The base form side of the wife formwork and the mounting portion are connected to each other via a second guide mechanism which allows the construction of the wife formwork for casting tunnel lining concrete. 2. The spout formwork apparatus for placing concrete in a tunnel lining according to claim 1, wherein a plurality of spout forms are arranged side by side in order to close as much as possible the opening of the gap between the formwork and the inner surface of the tunnel. A wife formwork apparatus for placing concrete in tunnel lining, which is provided. 3. A wife formwork device for placing concrete in a tunnel lining concrete for closing an opening of a gap between a formwork provided in a tunnel and an inner surface of the tunnel, the tip end of the formwork having a bodyplate mounted thereon. Closely, the tip of a cylinder that moves the end form in the oblique direction that is a combined direction of both the tunnel length direction and the tunnel inner surface direction and the tunnel inner surface direction is pivotally mounted, and a guide pin is provided on the base end side of the cylinder, A mounting portion protruding forward is provided on the formwork, and the guide pin is movably fitted and locked into a guide hole rising forward of a guide plate mounted and fixed to the mounting portion, and further mounted and fixed to the mounting portion. The upper part of the guide plate is vertically elongated and the lower part is connected to the elongated hole. It is fitted and locked in Wife formwork device for placing concrete in tunnel lining. 4. The tunnel lining apparatus according to claim 3, wherein an elastic body is provided at a tip end of the pier plate or the pier form to contact the inner surface of the tunnel. Wife formwork device for placing concrete. 5. The end formwork apparatus for casting concrete for tunnel lining according to claim 1, wherein the mounting section and the end formwork are connected and fixed to each other. A hole into which a wedge presser fitting can be inserted, formed to be larger than the inner diameter of the hole so that the base end side of the wedge presser fitting is locked in the hole, and the wedge is inserted into a portion inserted into the hole and protruding from the hole. A wife formwork apparatus for placing concrete in a tunnel lining, wherein the formwork hole is provided.