JPH078639Y2 - Sleepers for temporary rails in tunnels - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sleeper for laying rails for work vehicles and scaffolding plates for pedestrians in tunnel construction by the shield construction method.

[0002]

2. Description of the Related Art As shown in FIG. 5, a conventional sleeper (1) of this kind is made of H steel and both ends thereof are cut in an arc shape along the inner surface of the segment tunnel. . The sleepers (1) are arranged side by side in the segment tunnel (9), straddle the upper surface of the adjacent sleepers (1), and the work vehicle rails (6) (61) and rear bogies for material transportation travel. A single rail (63) and a pedestrian scaffolding board (7) are laid.

In order to secure the necessary space for mounting the rails (6) (61) (63) and the scaffolding plate (7), the total length L of the sleeper itself needs to be about 1350 mm, and the rail mounting portion
Since the (30) and the scaffolding board mounting part (50) are formed at the same height, the effective walking height on the scaffolding board (7) is about 1500 mm in the segment tunnel (9) with an inner diameter of about 2000 mm. Become. Therefore, the worker is forced to walk with his / her back bent, and physical fatigue, particularly low back pain, is a serious problem.

The Applicant has previously proposed to solve the above problems.
As shown in FIG. 4, a sleeper was proposed in which the supporting height of the scaffolding plate was made lower than the rail laying height (Actual Application No. 2-10439).
0). The sleeper (1) is formed by fixing the mounting plate (20) across both ends of the backing plate (2) on the backing plate (2) curved in an arc shape along the inner surface of the tunnel (9). The mounting plate (20) is mounted on the rail mounting parts (30) (40) on which the rails (6) (61) (63) are mounted, and on the walking scaffolding plate (7) which is formed lower than the rail mounting part. Consists of a scaffold board rest (50).

Since the above-mentioned sleeper's place board placing portion (50) is laid at a position lower than the rail rest portions (30), (40), it walks on the scaffolding board (7) in the tunnel (9). The effective height can be increased, and the user can walk with a slight forward bending, and it is possible to walk in the tunnel (9) in a comfortable posture, as compared with the conventional case where the user cannot walk by bending down.

Further, since the scaffold plate mounting portion (50) is simply formed low, the scaffold plate mounting portion (50) and the rail mounting portion (30) (4
It is not necessary to shorten the length of the tunnel width direction of 0), and it has an excellent effect that no trouble occurs in the laying of the rails 6, 6 and the scaffolding plate 7. However, in the above case, the work vehicle travels from one side of the center of the tunnel width, and a large work vehicle cannot travel. The present invention further improves the above-mentioned sleepers and clarifies a sleeper in which the position of the rail can be changed according to the type of work and the type of work vehicle.

[0007]

[Means for solving the problem] The sleeper of the present invention is a tunnel (9).
In a tunnel sleeper for rail temporary installation, in which multiple rails are laid across the upper surface with a space provided inside the tunnel.
The backing plate (20) is formed by fixing the backing plate (20) across both ends of the backing plate (2) on the backing plate (2) curved in an arc shape along the inner surface of the (9). A rail mounting part (30) (40) on which the rails (6) and (61) are mounted, and a scaffolding plate mounting part (50) which is lower than the rail mounting part and on which the walking scaffolding plate (7) is mounted, A moving base (34) having an auxiliary rail mounting portion (36) on the upper surface of the scaffolding plate mounting portion (50) is arranged so as to be movable and positionally fixed in the width direction of the tunnel.

[0008]

[Operation and effect] By moving the moving base (34),
By pairing the auxiliary rail (62) laid on the platform with any of the rails (6) and (61) on the mounting plate (20), the traveling position of the work vehicle with respect to the width of the tunnel can be changed. .
By setting the rails (6) (61) near the center of the tunnel width, it is possible to drive a work vehicle with a large vehicle body width and height.
If set, one rail (60) for traveling the rear bogie for material transportation can also be used effectively.

[0009]

EXAMPLE FIG. 1 shows an arc-shaped unit segment in an excavation pit.
By connecting (8) in the circumferential direction and the length direction to form a segment tunnel (9), the sleeper (1) of the present invention is juxtaposed in the segment tunnel, and the rail (6) is placed on the sleeper (1). (61) (62) (63)
And the scaffolding plate (7) is laid.

In the unit segment (8), a rectangular plate is curved in an arc shape, and the connecting flanges (81) (8
2) is protruding.

The sleeper (1) is arranged straddling over the flanges (81) (81) of the unit segments (8) adjacent to each other in the axial direction.
The sleeper (1) uses a metal strip as an arcuate flange (8
The backing plate (2) is formed by bending it in an arc shape corresponding to the curvature of 1), and the mounting plate (20) is fixed on the backing plate (2).
The length between the ends of the caul plate (2) is about 1450 mm.

The mounting plate (20) has two members (3) and (4) of large and small sizes bent in an L-shape, and long sides (31) (4) of each L-shaped member (3) (4).
1) are at the same height, and the tips of the long sides (31) (41) are slightly projected from the end of the contact plate (2) so that both members (3) (4) are contacted with the contact plate (2). Welded and fixed on top, and the member (3) between both members (3) and (4)
Strip plate parallel to the long sides (31) and (41) of (4) and lower than the long sides
It is formed by welding and fixing (5). Two large and small L-shaped members
Notches (12) and (12) are provided at the outer ends of (3) and (4).

One end of the strip plate (5) is connected to the short side (42) of the small L-shaped member (4) and the backing plate (2), and the other end is a large L-shaped member.
They are fixed by welding to the short sides (32) of (3). The long side (31) of the large L-shaped member (3) has a length of about 500 mm, and the distance between the large L-shaped member (3) and the small L-shaped member (4) is about 500 mm. Two L-shaped members (3) (4) and strips (5) and a backing plate
Reinforcing plates (11) and (11) are welded and fixed to (2).

The outer side of the long side (31) of the large L-shaped member (3) is one rail (63) for traveling a rear carriage for material transportation, and the inner side is one rail (6) for traveling a working vehicle. ) On the rail
(30), the long side (41) of the small L-shaped member (4) serves as a mounting portion (40) for laying the other rail (61) for traveling the work vehicle, and each rail is fixed. A bolt hole (33) is provided for use.

On the strip plate (5), a rectangular frame-shaped moving base (34) having the same height as the rail mounting portions (30) and (40) is arranged so as to be movable orthogonal to the rail (6). The strip plate (5) is provided with a bolt hole (35) for fixing the moving table (34) to the L-shaped members (3) and (4), and the moving table is provided with a large L-shaped member (as necessary). 3), it can be fixed by bolting in contact with either one of the small L-shaped member (4).
The upper surface of the moving base (34) is a rail mounting portion (36), and an auxiliary rail (62) is laid across the rail mounting portion (36) of each moving base.

When the movable table (34) is fixed to the large L-shaped member (3) side, the rail of the auxiliary rail (62) on the table and the rail (61) on the small L-shaped member (4). When the gauge G ₁ and the movable table (34) are fixed to the small L-shaped member (4) side, the auxiliary rail on the table is fixed.
The rail gauges G ₂ of (62) and the inner rail (6) on the large L-shaped member (3) are both 610 mm in the embodiment. Strip
(5) The parts other than the moving platform mounting part are the scaffolding plate mounting parts (50).

However, the sleeper (1) is placed on the flanges (81) of the unit segments (8) adjacent to each other in the longitudinal direction of the tunnel (9) by placing the sleeper (1), and the cutouts (1) at both ends of the sleeper (1) are placed. Fit 12) onto the flange (81). This prevents the sleepers (1) from collapsing and moving in the longitudinal direction of the tunnel.

The required rails and scaffolding plates (7) are placed over a plurality of sleepers (1), and the rails are bolted to the sleepers (1) via a rail holding plate (60). The scaffolding plate (7) of the embodiment is
It is formed by attaching a metal mesh body to a rectangular metal frame.

A work vehicle (not shown) is placed on the auxiliary rails (62) on the movable table (34) and the rails (6) or (61) forming a pair with the auxiliary rails (62) to drive the scaffolding board (). 7) Walk up.

Since the scaffolding plate (7) is laid at a position lower than the rail mounting portions (30) and (40), the segment tunnel
(9) The effective walking height on the scaffolding plate (7) can be increased,
It is possible to walk inside the tunnel (9) in a posture that is slightly leaning forward and easier than before.

FIG. 3 shows another embodiment in which a part of the rail mounting portion (30) is removed to secure a material storage space S such as a pipe. The present invention is not limited to the configuration of the above embodiment, and various modifications can be made within the scope of the claims for utility model registration.

[Brief description of drawings]

FIG. 1 is a perspective view of a state of use.

FIG. 2 is a front view of a sleeper.

FIG. 3 is a front view of another embodiment of the sleeper.

FIG. 4 is a front view of a walking state.

FIG. 5 is a front view of a conventional example in a walking state.

[Explanation of symbols]

 (1) Sleepers (2) Resting plate (20) Mounting plate (30) Rail mounting part (40) Rail mounting part (34) Moving stand (50) Scaffolding plate mounting part (6) Rail (61) Rail (62) Auxiliary rail

Claims (1)

[Scope of utility model registration request] 1. A rail along the inner surface of a tunnel (9) in a rail sleeper for temporary rail installation in a tunnel, wherein a plurality of rails are laid in the tunnel (9) with a space between them and rails are laid across the upper surface. The placing plate (20) is formed by fixing the placing plate (20) on both sides of the attaching plate (2) on the attaching plate (2) curved in an arc shape.
(6) The scaffolding plate comprises a rail mounting part (30) (40) on which the (61) is mounted and a scaffolding plate mounting part (50) which is lower than the rail mounting part and on which the walking scaffolding plate (7) is mounted. A temporary sleeper for rails in a tunnel in which a moving base (34) having an auxiliary rail mounting portion (36) on the upper surface of the mounting portion (50) is arranged so as to be movable and positionally fixed in the width direction of the tunnel.