JP2576950B2 - Removal method of ceiling plate in tunnel and stage car used for it - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a tunnel provided with a metal ceiling plate for partitioning a space inside a tunnel in order to make the upper part of the tunnel a ventilation tunnel. The present invention relates to a method for removing a ceiling plate used when removing a ceiling plate, and a stage car used for the method.

[0002]

2. Description of the Related Art In a tunnel in which a car travels, a metal ceiling plate is provided above a cement wall in the tunnel to define a tunnel room serving as a vehicle traffic space, and the upper space of the ceiling plate is ventilated. There are many cavernous structures. In order to improve the ventilation tunnel structure of the ceiling panel section to a new tunnel ventilation system, an operation of removing the ceiling panel has been performed in recent years.

[0003] However, since the ceiling panel removal work has not been performed in the field in the past, and a dedicated construction method and dedicated work equipment have not been developed, the ceiling board in a long tunnel is sequentially blown manually. A work method is adopted in which debris is sequentially carried out of the tunnel by a lift truck.

[0004]

According to the above-mentioned conventional method of removing ceiling panels in a tunnel, manual work is required in a narrow tunnel, which makes the operation dangerous and extremely inefficient and increases the cost. At the same time, there is a disadvantage that the construction period is prolonged. In addition, the road surface and the inner wall of the tunnel may be damaged by the debris that has been blown away. There is an inevitable problem.

The present invention provides a method of removing a ceiling plate in a tunnel and a stage car used for the method, which solves the above-mentioned drawbacks of the prior art.

[0006]

The present invention for solving the above-mentioned technical problem is disclosed in "Removing a metal ceiling plate in a tunnel, with a cutter wheel in the tunnel and an opening facing the ceiling plate. Advance the stage car having a bucket section covering the lower part of the removal construction zone, cut and separate the ceiling plate by the cutter section of the cutter car, put it into the lower stage car, accommodate it, and cut chips in the stage car, A method of removing the ceiling plate inside the tunnel, which is transferred to a truck or the like at any time and carried out of the tunnel, and the ceiling plate is sequentially removed.

The inclined left and right side plates facing the left and right side walls of the tunnel are erected and extended, and the left and right side plates are formed in a downwardly narrowed bucket shape having an upper end as an opening. A stage vehicle used in the method for removing the ceiling plate in the tunnel, characterized by having a structure in which a side plate length adjustment mechanism that can be freely adjusted and an inclination angle adjustment mechanism that can freely adjust the inclination angle of the side plate are provided.

[0008] That is, the above-mentioned method for removing a ceiling plate in a tunnel according to the present invention comprises a cutter wheel for cutting a ceiling plate to be removed to a required size, and a stage vehicle for receiving and accommodating cut pieces of the ceiling plate in the tunnel. The main purpose is to remove the ceiling panels in sequence, set the bucket size of the stage car to the required amount, and perform removal work for each lane of the road in the tunnel, or two-lane ceiling panels Or to remove all at once. And, in the case of a tunnel structure in which mortar is filled in a connection portion between the ceiling plate and the inner wall of the tunnel, etc., prior to the advancement of the stage vehicle, the mortar removal operation is performed as a preliminary operation for removing the ceiling plate,
Further, ceiling plate accessories such as suspension bolts for holding the ceiling plate to the tunnel wall are carried out by a work vehicle following the stage vehicle as a post-removal work of “ceiling plate removal”.

[0009]

According to the above-described method of removing the ceiling plate in the tunnel according to the present invention, the ceiling plate is appropriately divided and housed by the cutter wheel for traveling in the tunnel and the stage vehicle having the bucket part of the above requirements. The work efficiency is remarkably improved as compared with the manual work of removing the ceiling plate, the work safety is improved, and damage to the inner wall of the tunnel and the inner road surface of the tunnel due to falling and contact of cutting chips can be prevented.

[0010] Then, the stage car has a bucket portion that stands upright on the side wall facing the tunnel side wall and covers the lower part of the removal work zone, so that the removed cutting waste can be properly accommodated.
Since there is no protrusion of stored cutting waste to the side of the stage car,
In a tunnel with two lanes in the upper and lower lanes, it is possible to perform lane-by-lane construction while ensuring the safety of one lane.

Further, since the stage vehicle having the above-described structure has a vertical length adjusting mechanism for the left and right side plates and a tilt angle adjusting mechanism,
With both mechanisms, the stage can be set to the size and shape that matches the shape of the tunnel to be constructed, so it can be used for tunnel ceiling plate removal work with various shapes and sizes.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description will be given based on embodiments. First, referring to FIG. 1 showing the concept of an embodiment of a method of removing a ceiling plate in a tunnel according to the present invention, this embodiment removes a metal ceiling plate 2 of a tunnel 1 of a single-lane automobile road. First, a stage car 3 used for this work is a side plate 4 that covers a lower part of a work zone (a part to be constructed by a cutter car 9 described later) of a ceiling plate 2 to be removed.
A body with wheels 6 having a bucket portion 5 composed of A and 4B, having a length sufficient to sufficiently cover the above-mentioned construction zone, being opened in the front-rear direction and being driven by a prime mover 10,
It has a structure in which the ceiling plate 2 which has been advanced in the tunnel 1 and separated and removed is stored in the bucket portion 5.

Using the stage car 3, the ceiling panel 2 is removed by the following procedure and method. That is, the stage wheel 3 towed by the leading wheel 10 and the self-propelled cutter wheel 9 are advanced into the tunnel 1 and stopped at a position below the ceiling plate 2 to be removed. Cut the ceiling board 2 to the required size,
It is thrown into the bucket unit 5 of the lower stage car 3.

When the ceiling plate 2 in the working range at the stop position of the stage car 3 is removed, the cutting chips 13 in the bucket portion 5 are transferred to the truck 12 by the hydraulic shovel wheel 11 or the like, and To the next work zone, the stage car 3 and the cutter car 9
Similarly, the ceiling plate 2 is removed, and thereafter, the entire ceiling plate 2 in the tunnel 1 is removed in order.

The tunnel 1 where this construction was implemented
Since part of the upper part of the ceiling plate 2 is filled with mortar, the mortar is manually removed prior to the advance of the stage car 3, and a preliminary operation for smoothly cutting and removing the ceiling plate 2 by the cutter wheel 9. Is performed. Then, after the ceiling plate 2 is removed, the outer girder 15, the suspension bolts 16, and the attachments of the ceiling plate 2 provided between the ceiling plate 2 before the removal and the inner wall of the tunnel are provided.
The intermediate beam 17 and the like are removed by the work vehicle 19 following the stage vehicle 3 as post-cleaning work. In addition, 1 in the figure
Reference numeral 8 denotes a construction lighting vehicle.

According to the removal method of the above embodiment, the work efficiency is remarkably improved by a factor of 2 to 3 and the construction period is significantly shortened as compared with the conventional manual removal work. And since the stage car 3 covers the lower part of the construction zone, it does not cut and the fragments of the ceiling plate fall on the road surface and do not contact the inner wall of the tunnel. Safety can be sufficiently ensured.

Next, another embodiment of a method for removing a ceiling plate in a tunnel according to the present invention will be described with reference to FIG. That is, in this embodiment, construction is performed for each lane in a two-lane tunnel, and the stage vehicle 3 has a size to cover the lower part of the single-lane ceiling plate 2 and is in a one-side lane divided by the center line 27. Removal work is performed. According to this embodiment, it is possible to secure the safe one-way traffic and remove the ceiling panel 2.

Next, a stage car 3 according to another embodiment of the present invention will be described with reference to FIG. That is, the stage car 3 of FIG. 3 has side plates 4A
The lower plate 20 is composed of a combination of a lower plate 20 hinged to a base plate 25 and an upper plate 21 slidably connected to the lower plate 20, and the lower plate 20 is provided by an elastic portion 22 provided outside the side plates 4A and 4B. Side plates 4A and 4 comprising the upper plate 21
A side plate standing length adjustment mechanism that adjusts and sets the length of B to make the height H of the stage car 3 adjustable;
A side plate inclination angle adjusting mechanism including a length-adjustable support bar 23 provided outside the 4B and supporting the side plates 4A and 4B is provided. Further, the stage car 3 is provided with a traveling guide 26 composed of a guide roller projecting to the side of the base plate 25 and coming into contact with the inner wall of the tunnel 1, so that the stage car 3 can be moved smoothly along the inner wall of the tunnel 1. There are times when you do.

The stage wheel 3 of the embodiment shown in FIG. 3 can be commonly used for tunnels of various structures having different shapes and sizes by setting the variable height H and the inclination angles θ of the side plates 4A and 4B.

[0020]

As described above, the method for removing the ceiling plate in the tunnel and the stage car used in the method according to the present invention are much more efficient and the construction period is shortened. The productivity is particularly improved, and at the same time, the ceiling panel removal work is safe, there is no damage to tunnels and road surfaces, and in addition, there is a great effect that the ceiling panel removal work for each traveling lane is enabled.

[Brief description of the drawings]

1A and 1B show a method of removing a ceiling plate in a tunnel according to an embodiment of the present invention, wherein FIG. 1A is a front view illustrating the method and procedure, and FIG. 1B is a cross-sectional view of the tunnel showing the method.

FIG. 2 is a cross-sectional view of a tunnel showing a method of removing a ceiling plate according to another embodiment of the present invention.

FIG. 3 is a side view of a stage vehicle according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tunnel 2 Ceiling board 3 Stage car 4A, 4B side plate 5 Bucket part 6 Wheel 8 Cutter blade 9 Cutter car 10 Leader car 12 Truck 13 Cutting waste 15 Outer girder 16 Hanging bolt 17 Intermediate beam 19 Work vehicle 20 Lower plate 21 Upper plate 22 Telescopic part 23 Bearing bar 25 Base plate 27 Center line

Claims (2)

(57) [Claims] When removing a metal ceiling plate in a tunnel, a stage car having a cutter wheel in the tunnel and a bucket portion covering an opening portion of the ceiling plate and covering a lower part of a removal work zone is advanced. Then, the ceiling plate is cut and separated by the cutter unit of the cutter wheel, and is put into and accommodated in a lower stage vehicle, and cutting chips in the stage vehicle are transferred to a truck or the like as needed and carried out of the tunnel. A method for removing ceiling panels in a tunnel, characterized by sequentially removing the ceiling panels. 2. An inclined left and right side plate facing the left and right side walls of the tunnel is erected and extended, and the left and right side plates have a downwardly narrowed bucket shape having an upper end as an opening, and furthermore, the erected length is expanded and contracted. 2. The stage vehicle used in the method for removing a ceiling plate in a tunnel according to claim 1, wherein a structure is provided with a side plate length adjusting mechanism that is adjustable and a tilt angle adjusting mechanism that is capable of adjusting the tilt angle of the side plate.