JP3791309B2 - Tunnel lining concrete repair equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a continuous repair device for tunnel lining concrete, and more particularly to a repair device that removes a deteriorated portion of tunnel lining concrete and continuously forms a new repair concrete layer in the removed portion.
[0002]
[Prior art]
When constructing mountain tunnels, lining concrete is usually provided on the excavated inner peripheral surface, but it may deteriorate from the surface side of the lining concrete due to aging or salt damage due to long-term use. Are known. If such deterioration occurs in tunnel lining concrete, it is dangerous to leave it as it is, so repair and reinforcement work will be performed.
[0003]
In this type of construction, the degraded portion of the tunnel lining concrete is usually removed by water jet spraying, and after the removed portion is cleaned, a new concrete layer is formed by spraying.
[0004]
For such repair work, for example, when the tunnel to be repaired is a road tunnel and work is performed under the live line of the road tunnel, traffic regulation such as one-side regulation and nighttime traffic closure is performed, and a protective curtain is installed. For example, the work was carried out for each process while using nerves for general traffic vehicles.
[0005]
However, such a conventional tunnel lining concrete repair method has the following problems.
[0006]
[Problems to be solved by the invention]
That is, in the conventional repair method described above, when removing the lining concrete, or when spraying the concrete layer, as a measure to prevent splashing of high-pressure water, splashing galley, mortar, aggregate, Guard fences and curtains must be installed at each construction site, and it takes time to remove these installations, and the construction efficiency decreases.
[0007]
In addition, the suspension and concrete spraying work was carried out using an aerial work vehicle, but because of safety concerns, high efficiency construction was not possible.
[0008]
The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a continuous repair device for tunnel lining concrete that can efficiently repair a deteriorated portion. It is in.
[0009]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention is a concrete continuous repair device that forms a repair concrete layer on the removed portion in a state in which a deteriorated portion of the tunnel lining concrete is removed by a peeling and removing device such as water jet injection. A gate-type carriage that is movably installed along the tunnel axis direction and is capable of running the vehicle in a lower part, and the peeling and removal device mounted on one end side of the portal-type carriage in the tunnel axis direction, It is mounted on the rear side of the exfoliation and removal device mounted on the portal type carriage, is installed at a predetermined interval on the inner surface side of the removal portion, and the repair is performed by placing concrete or mortar within the interval and arched formwork plate forming the concrete layer, provided at the front side along the tunnel axis, and a weir plate for closing the gap, continuously moved in the direction of travel A formwork device slipform form to a drying device mounted on said removed portion in said gate-shaped carriage between the mold apparatus and the peeling removal device is disposed behind the drying device, drying A primer coating device for spraying an adhesive on the removed portion, and a surface of the repaired concrete layer after being mounted on the gate-type carriage and disposed on the rear side of the formwork device and demolding the formwork device. Mounted and supported by the portal-type carriage so as to correspond to the lower side of the installation position of the leveling device for shaping and the peeling and removing device, and curved so as to cover the upper half of the tunnel and both side portions connected to the upper half And an anti-scattering plate.
According to the tunnel lining concrete continuous repairing device configured as described above, the peeling removal device and the formwork device are mounted on the portal trolley movable along the tunnel axial direction. By operating, the repaired concrete layer can be continuously formed in the removed portion in a state where the deteriorated portion of the tunnel lining concrete is removed.
In this case, there is provided a scattering prevention plate that is mounted and supported by the portal trolley so as to correspond to a position below the installation position of the peeling removal device, and is curved so as to cover the upper half portion of the tunnel and both side portions connected thereto. Therefore, the splash of high-pressure water and the splashing of the hanging glass when removing the lining concrete are received by the anti-scattering plate and are not scattered inside the tunnel.
Further, the mold apparatus has an arch-shaped form plate that is installed at a predetermined interval on the inner surface side of the removed portion and forms a repaired concrete layer by placing concrete or mortar within the interval. As a result, scattering of mortar and aggregate is prevented.
For this reason, it is not necessary to install a protection fence or a protection curtain for each construction site as in the prior art, and the construction efficiency is improved.
Further, in the present invention, since the work scaffold can be secured on the portal trolley, safety is improved and work efficiency is increased.
Furthermore, according to the present invention, since the vehicle can travel in the lower part of the portal trolley, it is not necessary to block traffic during repair work.
Further, in the present invention, the formwork apparatus includes an arch-shaped formwork plate and a slat plate provided on the front end side along the tunnel axis direction and closing the interval, and is capable of always moving the formwork plate. Since it is a foam mold, it is possible to continuously place concrete or mortar while moving the mold plate.
In addition, a smoothing device that shapes the surface of the repaired concrete layer after removing the formwork device is installed on the rear side of the formwork device, so smoothness is required on the finished surface like a water channel. In this case, since the surface can be continuously shaped following the formation of the repair concrete layer, the construction speed can be increased.
In the continuous repair device according to the present invention, a gate type includes a drying device for a removed portion and a primer coating device for spraying an adhesive to the removed portion dried by the drying device between the peeling and removing device and the formwork device. Since it is mounted on the carriage, the bonding strength between the lining concrete from which the deteriorated portion has been removed and the repaired concrete layer can be improved.
The stripping / removing device includes a plurality of jet nozzles for injecting water jet water onto the tunnel lining concrete, the jet nozzles are arranged in a row at predetermined intervals along the tunnel axis direction, and Each jet nozzle can be attached to be movable along the circumferential direction of the tunnel.
According to this structure, the peeling removal operation | work by a water jet can be performed automatically.
The leveling device includes a trowel that is in sliding contact with the surface of the concrete layer, and the trowel can be installed movably along the circumferential direction of the tunnel.
According to this configuration, the surface of the repair concrete layer can be automatically shaped by moving the iron.
The portal type carriage may be provided with a guide device that is disposed at a front end in the tunnel axial direction and has a plurality of guide rollers that roll in contact with the inner surface of the tunnel lining concrete.
According to this configuration, the portal carriage can be moved along the axial direction while being positioned with respect to the cross section of the tunnel.
A device for collecting slime and washing water generated by jetting of the jet nozzle can be provided on both ends of the scattering prevention plate.
According to this configuration, since slime and washing water generated by jet nozzle injection are collected, problems such as clogging of existing drain pipes provided in the tunnel can be eliminated.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings. 1 and 7 show an embodiment of a continuous repair device for tunnel lining concrete according to the present invention.
[0011]
FIG. 1 is a schematic view of the overall configuration of the continuous repair device 10. In this continuous repair device 10, the degraded portion B of the tunnel lining concrete A is removed by the peeling and removing device 12, and the removed portion C is removed. The repair concrete layer D is continuously formed.
[0012]
The continuous repair device 10 of this embodiment includes a portal trolley 14, a peeling removal device 12 mounted on the portal trolley 14, a scattering prevention plate 15, a formwork device 16, a leveling device 18, a slime recovery device 19, A guide device 20, a drying device 22, and a primer coating device 24 are provided.
[0013]
FIG. 2 is a side view of the portal trolley 14, and the portal trolley 14 according to the present embodiment includes a plurality of portal legs 14 a formed in a substantially U shape and a plurality of cross beams 14 b. ing. Wheels 14c are rotatably installed at both ends of each portal leg 14a.
[0014]
The plurality of gate-shaped leg portions 14a are arranged so as to be parallel to each other at a predetermined interval. In this arrangement state, the gate-shaped leg portions 14a are coupled by the cross beam 14b. To reinforce the structure.
[0015]
When the portal trolley 14 configured as described above is installed in the tunnel to be repaired, it can be moved along the tunnel axial direction by the wheels 14c, and the vehicle can travel below the portal leg 14a. .
[0016]
As shown in FIG. 1, the peeling / removal device 12 is mounted on one end side in the traveling direction of the portal carriage 14 along the tunnel axis direction. The peeling / removal device 12 of this embodiment includes a plurality of jet nozzles 12a for injecting water jet water W onto the tunnel lining concrete A and a plurality of guide rails 12b.
[0017]
In the case of the present embodiment, four guide rails 12b are arranged in parallel at a predetermined interval in the tunnel axis direction, and each guide rail 12b has an upper half portion of the tunnel as shown in FIG. The curved portion is formed so as to cover a part of the side portion connected to both ends of the upper half portion, and is supported on the outer peripheral side of the gate-shaped leg portion 14a of the portal-type carriage 14 at a predetermined interval.
[0018]
The jet nozzle 12a is movably installed along the guide rail 12b. In the present embodiment, a plurality of jet nozzles 12a are arranged with respect to one guide rail 12b.
[0019]
That is, in the case of the present embodiment, a plurality of jet nozzles 12a are arranged in four rows at predetermined intervals along the tunnel axis direction, and each jet nozzle 12a moves along the tunnel circumferential direction. Installed as possible.
[0020]
The moving mechanism of each jet nozzle 12a can be automatically operated by, for example, interposing a rack and pinion between the holder of the nozzle 12a and the guide rail 12b and rotating the pinion by a motor or the like.
[0021]
According to the stripping / removing device 12 configured as described above, the nozzles arranged in a line by moving each jet nozzle 12a along the guide rail 12b along the tunnel circumferential direction while injecting the water jet water W. The peeling removal work of the deteriorated portion B can be automatically performed in correspondence with the arrangement width 12a.
[0022]
The anti-scattering plate 15 is mounted and supported on the portal carriage 14 so as to correspond to the lower side of the installation position of the peeling / removal device 12, and is curved so as to cover the upper half portion of the tunnel and both side portions connected thereto. .
[0023]
In the case of the present embodiment, the anti-scattering plate 15 extends in a curved manner so as to follow the lower surface of the guide rail 12b of the peeling / removal device 12, and is disposed at a predetermined interval from the outer periphery of the gate-shaped leg portion 14a. On both ends, a slime recovery device 19 shown in FIG. 3 is provided.
[0024]
The slime collection device 19 includes a slime container 19a formed by bending the extended end of the anti-scattering plate 15 outward, and a slime collection pump 19b installed in the slime container 19a.
[0025]
When the slime recovery devices 19 having such a configuration are provided at both ends of the anti-scattering plate 15, the slime and washing water generated by the jet nozzle 12a are recovered in the slime container 19a. Problems such as clogging of existing drain pipes can be eliminated.
[0026]
The formwork device 16 is mounted on the rear side of the peeling / removal device 12 mounted on the portal trolley 14, and is installed on the inner surface side of the removal portion C with a predetermined interval d. Concrete (mortar) is placed in the interval d. ) Is formed to form the repair concrete layer D.
[0027]
The mold device 16 includes an arch-shaped mold plate 16a, a siding plate 16b, and a concrete injection pipe 16c. As shown in FIG. 4, the mold plate 16 a is mounted and supported on the portal carriage 14 so as to be separated from the lining concrete surface from which the deteriorated portion B has been removed by a predetermined distance d.
[0028]
The weir plate 16b is provided on the front end side along the tunnel axis direction, closes the side surface of the interval d, and prevents leakage of the concrete placed in the interval d through the injection pipe 16. The injection tube 16c has a distal end opened within the interval d so as to get over the weir plate 16b.
[0029]
The mold plate 16a of the present embodiment can be a slip form mold that is always movable in the traveling direction, for example, by sticking a sliding material on the concrete placing surface side. When such a slip-form mold is used, concrete can be placed continuously while moving the mold plate 16a.
[0030]
Further, as shown in FIG. 5, the dam plate 16b 'is made of a flexible member such as rubber, and when the mold plate 16a is moved in the traveling direction, the concrete surface from which the deteriorated portion B is removed at the front end side. If it is made to deform according to the above, it is possible to reliably prevent leakage of the concrete placed in the interval d through the injection pipe 16.
[0031]
The leveling device 18 is mounted on the rear side of the formwork device 16 and shapes the surface of the repair concrete layer D after the formwork device 16 is removed. As shown in FIG. 6, the leveling device 18 includes a trowel 18a that is in sliding contact with the surface of the repair concrete layer D, and the trowel 18a is movably supported by a guide rail 16b extending in the circumferential direction of the tunnel. ing.
[0032]
The guide rail 16b is curvedly formed along the upper half portion of the tunnel and both side portions connected thereto, and is attached to the outer peripheral side of the gate-shaped leg portion 14a. The moving mechanism of the iron 18a can be automatically operated by, for example, interposing a rack and pinion mechanism between the guide rail 16b and rotating the pinion by a motor or the like.
[0033]
In the leveling device 18 configured as described above, the surface of the repair concrete layer D can be automatically shaped by moving the iron 18a along the guide rail 18b. When smoothness is required, the surface can be continuously shaped following the formation of the repair concrete layer D, so that the construction speed can be increased.
[0034]
The guide device 20 has a plurality of guide rollers 20a that are arranged at the front end of the portal carriage 14 in the tunnel axial direction and roll in contact with the inner surface of the tunnel lining concrete A to be repaired.
[0035]
Each guide roller 20a is rotatably supported by a guide plate 20b that is curved and formed along the upper half portion of the tunnel and both side portions connected to the upper half portion, and the concrete A on the upper half portion and the side portion of the tunnel. The roller rolls while abutting at a plurality of locations.
[0036]
When such a guide device 20 is provided, the guide roller 20a abuts at a plurality of locations of the lining concrete A, and thus the movement of the portal carriage 14 within the tunnel cross section is restricted thereby, so that the portal carriage 14 is tunneled. It can be smoothly moved along the axial direction while being positioned at a predetermined position with respect to the cross section.
[0037]
In the continuous repairing apparatus 10 of the present embodiment, a primer for spraying an adhesive on the removing portion C dried by the drying device 22 and the drying device 22 of the removing portion C between the peeling and removing device 12 and the formwork device 16. The coating device 24 is mounted on the portal carriage 14 in this order.
[0038]
The drying device 22 includes an injection nozzle 22a for compressed air and a guide rail 22b to which the injection nozzle 22a is movably attached. The guide rail 22b extends along the upper half of the tunnel and both sides connected to the upper half. The curve is formed.
[0039]
When compressed air is sprayed from the spray nozzle 22a of the drying device 22 onto the concrete surface from which the deteriorated portion B has been removed, the adhering concrete powder and the like are removed, and the concrete surface can be cleaned and dried.
[0040]
The primer coating device 24 includes an adhesive injection nozzle 24a and a guide rail 24b to which the injection nozzle 24a is movably attached. The guide rail 24b extends along the upper half of the tunnel and both sides connected thereto. In this way, the curve is formed.
[0041]
When an adhesive is applied to the concrete surface from which the deteriorated portion B has been removed via the spray nozzle 24a, the bonding strength between the lining concrete from which the deteriorated portion B has been removed and the repaired concrete layer D can be improved.
[0042]
Now, according to the continuous repairing device 10 configured as described above, the peeling removal device 12 and the formwork device 16 are mounted on the portal carriage 14 that is movable along the tunnel axis direction. By operating each apparatus 12 and 14, the repair concrete layer D can be continuously formed in the said removal part B in the state which removed the degradation part B of the tunnel lining concrete A. FIG.
[0043]
In this case, the anti-scattering plate 15 is mounted and supported on the portal carriage 14 so as to correspond to the lower side of the installation position of the peeling / removal device 12, and is curved so as to cover the upper half portion of the tunnel and both side portions connected thereto. Therefore, the splash of high-pressure water and the splash of the suspension glass when removing the lining concrete A are caught by the scattering prevention plate 15 and are not scattered inside the tunnel.
[0044]
Further, the mold device 16 has an arch-shaped mold plate 16a that is installed on the inner surface side of the removed portion at a predetermined interval and forms a repaired concrete layer D by placing concrete within the interval. As a result, scattering of mortar and aggregate is prevented.
[0045]
For this reason, it is not necessary to install a protection fence or a protection curtain for each construction site as in the prior art, and the construction efficiency is improved.
[0046]
Further, in this embodiment, since the work scaffold can be secured on the portal carriage 14, the safety is improved and the work efficiency is increased. Furthermore, in the present embodiment, since the vehicle can travel in the lower part of the portal trolley 14, there is no need to block traffic during repair work.
[0047]
In the above-described embodiment, the continuous repair device 10 in which the leveling device 18, the drying device 22, and the primer coating device 24 are mounted on the portal carriage 14 and the slime recovery device 19 and the guide device 20 are installed is illustrated. Each of these devices is not necessarily required to practice the invention.
[0048]
【The invention's effect】
As described above in detail in the embodiment, the tunnel lining concrete continuous repair device according to the present invention can efficiently repair the deteriorated portion of the tunnel lining concrete.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram of a part showing an embodiment of a continuous repair apparatus for tunnel lining concrete according to the present invention.
FIG. 2 is a side view of a portal trolley of the continuous repair device shown in FIG.
FIG. 3 is a view taken in the direction of arrows aa in FIG. 1;
4 is a view taken along the line bb in FIG. 1;
FIG. 5 is an explanatory view of a modification of the toe mold form of the formwork apparatus shown in FIG. 4;
6 is a view taken along the line cc of FIG.
7 is a dd arrow view of FIG. 1. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Concrete continuous repair apparatus 12 Peeling removal apparatus 14 Gate type trolley 15 Scatter prevention plate 16 Formwork apparatus 18 Leveling apparatus 19 Slime collection apparatus 20 Guide apparatus 22 Drying apparatus 24 Primer coating apparatus

Claims (5)

In a state where the degraded portion of the tunnel lining concrete is removed by a peeling removal device such as a water jet spray, a concrete continuous repair device that forms a repair concrete layer in the removed portion,
A portal-type cart that is installed so as to be movable along the tunnel axis direction and that allows the vehicle to run in the lower part,
The stripping and removing device mounted on one end side in the tunnel axial direction of the portal-type carriage;
It is mounted on the rear side of the exfoliation and removal device mounted on the portal trolley, is installed at a predetermined interval on the inner surface side of the removal portion, and the repair is performed by placing concrete or mortar within the interval. A slip-form formwork apparatus comprising an arch-shaped formwork board that forms a concrete layer and a siding board that is provided on the front end side along the tunnel axis direction and that blocks the interval, and that is always moved in the traveling direction ; ,
A drying device for the removal portion mounted on the portal trolley between the peeling removal device and the formwork device, and a primer that is disposed behind the drying device and sprays an adhesive on the dried removal portion. A coating device;
A leveling device mounted on the portal type carriage, disposed on the rear side of the formwork device, and shaping the surface of the repair concrete layer after demolding the formwork device;
An anti-scattering plate that is mounted and supported by the portal trolley so as to correspond to a position below the installation position of the peeling / removal device, and that is curved so as to cover the upper half of the tunnel and both sides connected to the upper half. This is a continuous repair device for tunnel lining concrete. The stripping and removing apparatus includes a plurality of jet nozzles that spray water jet water onto the tunnel lining concrete,
2. The jet nozzles are arranged in a row at predetermined intervals along the tunnel axis direction, and each jet nozzle is mounted so as to be movable along the tunnel circumferential direction. Tunnel lining concrete repair equipment. The leveling device comprises a trowel that is in sliding contact with the surface of the repair concrete layer,
  The continuous repair device for tunnel lining concrete according to claim 1, wherein the iron is movably installed along the circumferential direction of the tunnel. The said portal type trolley | bogie is arrange | positioned in the tunnel axial direction front end, The guide apparatus which has a some guide roller which rolls in contact with the inner surface of the said tunnel lining concrete was provided. Tunnel lining concrete repair equipment. The continuous repair device for tunnel lining concrete according to claim 1, wherein a device for collecting slime and washing water generated by the jet nozzle is provided at both ends of the scattering prevention plate.

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