JPH08338200A - Method and device for mounting tunnel lining work sheet - Google Patents

Abstract

PURPOSE: To lay down a water-proof sheet completely and efficiently even if a tunnel meanders. CONSTITUTION: In method for mounting a lining sheet on the internal surface of a tunnel frame, a frame body 12 on which bag bodies 122 are mounted is positioned in a tunnel 2. After a sheet 3 is expanded between the frame body 12 and the tunnel internal surface 22, using the expansion of the bag bodies 122, the sheet 3 is fixed onto the inner surface of the tunnel with the sheet 3 fitted closely to the inner surface 22 of the tunnel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tunnel lining technique, and more particularly, to a tunnel lining sheet mounting method and mounting for mounting a lining sheet as a secondary winding on an inner peripheral surface of a tunnel primary lining. Regarding the device.

[0002]

2. Description of the Related Art As a secondary winding of a shield tunnel, a method of secondary winding a waterproof sheet on the inner peripheral surface of a primary lining has been proposed. This method uses a mobile work scaffold installed in the tunnel, and an operator lays a band-shaped tarpaulin along the circumferential direction of the tunnel, and uses a plurality of fixing jigs to temporarily cover the tarpaulin parts. The work is partially fixed to the work.

[0003]

[Problems to be Solved by the Invention] The above-mentioned waterproof sheet mounting technique has the following problems. <a> A tarpaulin is unfolded on the work scaffold in the circumferential direction of the tunnel, and the tarpaulin is partially pressed against the primary lining and laid. This series of work depends on the manual work of the worker, and since it is an upward work, the burden on the worker is large, and there is room for improvement in terms of construction efficiency and construction cost. <B> If the unevenness of the primary lining is severe, the amount of waterproof sheet used increases by the amount of slack in the sheet. <C> At the meandering portions in the vertical and horizontal directions of the tunnel, it is difficult to press the waterproof sheet on the entire surface of the primary lining without any gap, and it is difficult to lay the waterproof sheet completely.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a tunnel lining sheet capable of completely laying a waterproof sheet even when the tunnel meanders. To provide the mounting technology. Still another object of the present invention is to provide a tunnel lining sheet mounting technique capable of efficiently laying a waterproof sheet.

[0005]

[Means for Solving the Problems] That is, according to the present invention, in a method of attaching a lining sheet to an inner peripheral surface of a tunnel body, a frame body to which a bag body is attached is positioned in the tunnel, After deploying the sheet between the peripheral surface and the peripheral surface, by utilizing the expansion of the bag body, the sheet is fixed to the tunnel inner peripheral surface in a state of being in close contact with the tunnel inner peripheral surface, This is the method of attaching the tunnel lining sheet. Further, the present invention is a method of attaching a lining sheet to an inner peripheral surface of a tunnel body, in which a frame body to which a bag body is attached is positioned in a tunnel, and the sheet is developed between the frame body and the inner peripheral surface of the tunnel. After that, the frame is brought close to the inner circumferential surface of the tunnel, and the expansion of the bag body is used to fix the seat to the inner circumferential surface of the tunnel in a state where the seat is in close contact with the inner circumferential surface of the tunnel. This is the method of attaching the tunnel lining sheet. Further, the present invention is the method for mounting the tunnel lining sheet, wherein the bag body is expanded by supplying air into the bag body in the method for mounting the tunnel lining sheet described above. . Further, the present invention is a device for deploying and mounting a lining sheet on the inner peripheral surface of a tunnel skeleton, the frame being formed along the inner peripheral surface of the tunnel, and the expandable / contractible attached to the frame. A device for attaching a tunnel lining sheet, characterized in that it is provided with a bag. Further, the present invention is a device for deploying and mounting a lining sheet on the inner peripheral surface of a tunnel frame, wherein the frame body is formed along the inner peripheral surface of the tunnel and is movable back and forth toward the inner peripheral surface of the tunnel. A device for attaching a sheet for tunnel lining, comprising: an inflatable and inflatable bag attached to the frame. Furthermore, the present invention is the tunnel lining sheet mounting device as set forth in the above-mentioned tunnel lining sheet mounting device, characterized in that the frame is mounted on a trolley traveling in a tunnel.

[0006]

Embodiment 1 An embodiment of the present invention will be described below with reference to the drawings. <B> Seat Attachment Device (FIG. 1) The seat attachment device 1 is configured by attaching a frame 12 formed along the inner circumference of the tunnel to a carriage 11 that can travel in the tunnel 2. Hereinafter, each part will be described in detail.

<B> Bogie (FIG. 1) The bogie 11 is provided with a plurality of scaffolds 111, and wheels 112 are provided at the bottom thereof to lay a rail 21 in the tunnel 2.
It is configured to run freely on top. In addition, a small truck 13 for transporting the seat 3 is arranged on the truck 11.
It is free to run on one. The small cart 13 is configured so that a loading platform 131 on which the seat 3 is placed can be moved up and down. The vertical movement structure of the small truck 13 may be a known structure such as a jack type or an expander type.

<C> Frame (FIGS. 1 and 2) The frame 12 is a plate-like member for unfolding the seat 3 and moving it to the inner peripheral side of the tunnel 2. As shown in FIG. 2, the ribs are formed in parallel with each other so that the hands can be extended from the inside to work on the inner peripheral surface of the tunnel 2, and the ribs are crossed in a lattice pattern inside. The frame 12 is attached to the dolly 11 via a telescopic jack 14, and has a structure capable of advancing and retracting toward the inner peripheral surface of the tunnel 2 by the telescopic jack 14 extending and contracting. on the other hand,
A bag body 122 is attached to the outside of the frame body 12, that is, on the inner peripheral surface side of the tunnel body 2 of the frame body 12. The bag 122 is
It is a flexible bag-like member that secures airtightness inside and outside, and has a structure that expands when air is supplied to the inside and contracts when air is discharged. The attachment structure of the bag body 122 to the frame body 12 is, for example, a structure in which an annular fastening band 123 is externally attached and fixed to the bag body 122, and the fastening band 123 is fastened to the frame body 12 by the band 124. This fastening belt 123
Also has a function of preventing local expansion of the bag body 122.
The bag 122 may be attached using other known means. Further, the mounting direction of the bag body 122 is the circumferential direction of the tunnel 2 in FIG.
In some cases, 22 is attached in the axial direction of the tunnel 2.

<D> Tunnel (FIGS. 1, 3, and 6) The tunnel 2 has an inner peripheral surface primarily covered with a segment 22. Inside the segment 22, a disc 221 is provided as shown in FIG. is set up. Disk 221
Is a member for attaching the sheet 3 to the inner peripheral surface of the segment 22, and the sheet 3 can be attached by bringing the sheet 3 into contact with the disc 221 and welding them by microwaves or the like.

<E> Sheet The sheet 3 is an object to be attached to the inner peripheral surface of the tunnel 2 and is a sheet material having water impermeability and air impermeability.
As the sheet 3, it is preferable to use a composite sheet material obtained by laminating a waterproof sheet and a non-woven fabric.

[0011]

Next, the method of attaching the seat 3 will be described. <a> Development of seat (FIGS. 1 and 3) First, as shown in FIG. 1, the telescopic jack 14 of the seat mounting apparatus 1 is contracted, the loading platform 131 of the small cart 13 is lowered, and the bag body 122 is contracted. I will keep it. Then, the seat mounting apparatus 1 is run, and the seat mounting apparatus 1 is moved to the seat 3 mounting position in the tunnel 2. Next, the roll-shaped seats 3 and 3 on the loading platform 131 of the small cart 13.
After setting, the loading platform 131 is lifted as shown in FIG. 3 and the seats 3 and 3 are deployed on the frame body 12, respectively.

<B> Seat pressing (FIGS. 3, 4, and 5) The telescopic jack 14 is extended to bring the frame 12 covered with the seat 3 closer to the inner peripheral surface of the tunnel 2. At that time, if the tunnel 2 meanders vertically or horizontally,
As shown in FIG. 4, the sheet 3 has segment 22 (tunnel 2
Does not adhere to the inner surface. Therefore, air is supplied to the bag 122 to inflate it. Due to the expansion of the bag body 122, the sheet 3 is pressed against the inner circumference of the segment 22 as shown in FIG. Even if the inner peripheral surface of the tunnel 2 has irregularities such as the surface of the segment 22, the expanded bag body 12
Since the sheet 2 is deformed following the irregularities, the sheet 3 can be securely attached to the inner peripheral surface of the tunnel 2.

<C> Sheet Fixation (FIG. 6) The sheet 3 is fixed to the segment 22 (inner circumferential surface of the tunnel 2). At this time, the sheet 22 does not sag and the segment 22
Since it is in close contact with (the inner peripheral surface of the tunnel 2), the fixing work can be easily performed. As a method of fixing the sheet 3, for example,
The welding device 4 is brought into contact with the disc 221 installation position of the segment 22 covered with the sheet 3 to attach the sheet 3 to the disc 221.
It may be fixed to the segment 22 by welding. The sheet 3 may be fixed to the segment 22 by other methods.

<D> Attaching the Next Seat After the seat 3 is fixed to the segment 22, the carriage 11 is moved and the next seat 3 is unfolded so that the end portion overlaps with the fixed seat 3 and the segment 22 is moved in the same manner as described above. Sticks to. Then, the seat 3 is sequentially fixed, and the seat 3 is attached to a predetermined area in the tunnel 2 to complete the seat attaching operation.

[0015]

Second Embodiment In the seat mounting method and apparatus described above, the bag 122 may be expanded by supplying a gas other than air into the bag 122. Also, a fluid other than gas may be supplied to the bag 122 to inflate it.

[0016]

Since the present invention is as described above, the following effects can be obtained. <B> The seat can be brought into close contact with the inner circumferential surface of the tunnel simply by expanding the seat on the frame and then inflating the bag. Therefore, the seat mounting operation can be performed easily and surely without slackening the seat. <B> Since the seat can be attached without slack, waste of the seat due to slack as in the past can be avoided, and the seat attachment work can be economically performed. <C> Since the expanded bag body is deformed following the inner peripheral surface of the tunnel, even if the inner peripheral surface of the tunnel has irregularities, the sheet can be firmly attached. Therefore, efficient seat mounting work can be reliably performed.

[Brief description of drawings]

FIG. 1 is a sectional view of a seat mounting device.

FIG. 2 is a perspective view of a frame body and a bag body.

FIG. 3 is an explanatory diagram of a seat mounting method.

FIG. 4 is an explanatory diagram of a seat mounting method.

FIG. 5 is an explanatory diagram of a seat mounting method.

FIG. 6 is an explanatory diagram of a seat mounting method.

Claims (6)

[Claims] 1. A method of attaching a lining sheet to an inner peripheral surface of a tunnel body, wherein a frame body to which a bag body is attached is positioned in a tunnel, and the sheet is developed between the frame body and the inner peripheral surface of the tunnel. After that, the sheet is fixed to the tunnel inner peripheral surface in a state where the sheet is brought into close contact with the tunnel inner peripheral surface by utilizing the expansion of the bag body, and the tunnel lining sheet mounting method. 2. A method for attaching a lining sheet to an inner peripheral surface of a tunnel body, wherein a frame body to which a bag body is attached is positioned in a tunnel, and the sheet is developed between the frame body and the inner peripheral surface of the tunnel. After that, the frame is brought closer to the inner peripheral surface of the tunnel, and the seat is fixed to the inner peripheral surface of the tunnel in a state where the seat is brought into close contact with the inner peripheral surface of the tunnel by utilizing expansion of the bag body. Yes, how to attach the tunnel lining sheet. 3. The tunnel lining sheet mounting method according to claim 1, wherein the bag body is inflated by supplying air into the bag body. How to install. 4. A device for expanding and mounting a lining sheet on the inner peripheral surface of a tunnel frame, wherein the frame body is formed along the inner peripheral surface of the tunnel, and is expandable / contractible attached to the frame body. An apparatus for attaching a tunnel lining sheet, characterized in that it is configured with a bag. 5. A device for unfolding and mounting a lining sheet on the inner peripheral surface of a tunnel skeleton, the frame being formed along the inner peripheral surface of the tunnel and capable of advancing and retracting toward the inner peripheral surface of the tunnel. An apparatus for attaching a sheet for tunnel lining, comprising: an inflatable and inflatable bag attached to the frame. 6. The tunnel lining sheet mounting device according to claim 4 or 5, wherein the frame body is mounted on a trolley that travels in a tunnel. Mounting device.