JP3031695U - General sleeper set for temporary rail installation in tunnels - Google Patents

Abstract

(57) [Abstract] (Correction) [Means for Solving the Problem] At least one side surface is covered with a steel plate to cover and reinforce two L-shaped flat strip steel plates and a desk-shaped flat strip steel plate. The side edge of the steel plate is aligned with the short sides of the above two L-shaped flat steel plates, and a desk-shaped flat steel plate is placed between them. When these members are bolted together, they have the same curvature as the tunnel main girder. A sleeper, which is formed by forming a curved curved edge and is integrated with the steel plate surface and a protrusion of a notch provided at the end edge of each strip-shaped flat steel plate, is fixed onto the tunnel flange. The long sides of the two L-shaped flat strip steel plates serve as rail mounting portions, and the long sides of the desk-shaped flat strip steel plate are at a position one step lower than the rail mounting portion and constitute a scaffold plate mounting portion parallel to the rail mounting portion. [Effect] By inserting a strip-shaped flat steel plate piece between two L-shaped strip-shaped flat steel plates and a desk-shaped flat flat steel plate, a general-purpose sleeper can be provided for a small-diameter tunnel of a shield construction method having different diameters.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a general-purpose sleeper set for temporary installation of rails in a tunnel, which can be generally used even when the inner diameter of the tunnel is different in the small-diameter tunnel construction by the shield construction method.

[0002]

[Prior art]

 In the tunnel construction by the shield method, unit segments (101) are laid one after another while excavating the tunnel, the segments are connected by flanges (102), and rails are spread over the flanges of the unit segments that are vertically adjacent to each other. Temporary sleepers are installed and rails (103) and (104) for laying trucks for carrying materials and vehicles for carrying out earth and sand are laid. In addition, scaffolding boards for normal walking are placed on these sleepers to facilitate the walking of workers (105).

Apart from large-diameter tunnels, sewer tunnels and many other small-diameter shield construction tunnels are often standardized with inner diameters of 1800 mm, 2000 mm and 2150 mm. In the case of such tunnels, the total length of sleepers needs to be about 1350 mm in order to secure the necessary space for mounting the rails and scaffolding plates. Therefore, the rail mounting part and the walking scaffolding plate mounting part should be at the same height. For example, the effective walking height on the scaffolding plate is about 1500 mm, which makes walking difficult. For this reason, it has long been practiced to lower the scaffolding board mounting portion from the rail mounting portion by one step to facilitate walking, for example, as described in Japanese Utility Model Publication No. 51-32801.

Further, the sleepers may be mounted by straddling the flanges of the unit segments adjacent to each other, or a cutout that fits into the tunnel main girder may be provided at the edge of the sleeper steel material to facilitate removal after use. In the industry, H steel sleepers have been used for a long time. It should be noted that, as a collection of such publicly known technologies, the scaffolding board mounting part is made one step lower than the rail mounting part to ensure an effective walking height, and the installation and removal of sleepers is facilitated in Jpn. On a backing plate curved in an arc along the inner surface of the segment tunnel, the backing plate is fixed across both ends of the backing plate, and the backing plate is a rail mounting part on which a rail is mounted, and a walking scaffold formed lower than that. Scaffolds for placing boards The railroad temporary sleepers for segment rails in the segment tunnel are described with notches for fitting the inner edges of the segment flanges at both ends.

[0005]

[Problems to be solved by the device]

 However, the sleeper described in Japanese Utility Model Publication No. 7-21680 has a structure in which the mounting plate is integrally welded and fixed to the arc-shaped curved backing plate along the inner surface of the segment tunnel, and it is necessary to transport this bulky sleeper to the construction site. However, there is a problem that a separate sleeper group must be prepared for each different tunnel inner diameter. The present invention is a sleeper that can lower the supporting height of the scaffolding plate lower than the rail laying height, is easy to lay and remove, and is not only easy to transport to the site, but also for tunnel construction with different diameters. A general purpose small-diameter shield construction method that can also be used for the purpose of providing a sleeper set for tunnels.

[0006]

[Means for solving the problem]

 According to the present invention, the above-mentioned subject is surrounded by a long side (1) and a short side (2) intersecting at a right angle, and a curve (3) which connects the ends of both sides and is curved outward in an arc shape. In the steel plate (A), the strip-shaped flat steel plates (4) and (5) extend in the direction perpendicular to the steel plate surface and extend over the entire lengths of the long side and the short side, and the end edges (6) (6 ') thereof Is a member (I) provided with notches (7) (7 ') that fit into the main girder of the tunnel (I) Long side (8) and two short piece groups (9) (9) intersecting at right angles at both ends of the long piece (8) ') And a steel plate (B) having a shape surrounded by a curved line (10) protruding outward in an arc shape connecting both ends of the two short pieces, the strip-shaped flat steel plates (11) (12) (12') Extends along the entire length of the long side (8) and the short side (9) (9 ') of the steel sheet in the direction perpendicular to the steel sheet surface, and the end edge (13) (13') has a A member (II) provided with notches (14) (14 ') that fit in the flannel main girder, and a long side (15) and a short side (16) intersecting at right angles, and the outer ends of these sides are tied together. In the steel plate (C) having a shape surrounded by a curved line (17) protruding in an arc shape, the strip-shaped flat steel plates (18) and (19) are the long sides in a direction perpendicular to the steel plate surface in the direction opposite to the member I. And a member (III) provided with notches (21) (21 ') that extend over the entire length of the short side and are fitted to the main girder of the tunnel at the end edges (20) (20') of the same (However, The curved edges (3), (10) and (17) of the steel plate group of these members become integral when the members I, II and III are sequentially joined so that the strip-shaped flat steel plates from these steel plates are in the same right angle direction. Is a curved edge that forms a curved arc with the same curvature as the main girder of the tunnel. The lengths of the short pieces of these members are such that when the members I, II and III are sequentially joined so that the curved edges are integrated to form a curved circular arc with the same curvature after the tunnel main girder. A flat steel plate group extending along the long piece becomes the same horizontal plane, and a flat steel sheet extending along the long piece of the member II has a length suitable for being kept at a position lower than the horizontal plane and parallel to it. Further, the strip-shaped flat steel plates (5) extending from the short side (2) of the member I, the strip-shaped flat steel plates (12) (12 ') extending from the short sides (9) and (9') of the member II, and the short side of the member III ( The strip-shaped flat steel plate (19) extending from 16) is composed of main parts of openings (22) (23) (24) for connecting and fixing I and II, II and III, respectively, Increase the size of sleepers when the inner diameter of the tunnel is large Therefore, the holes (26) are inserted between the strip-shaped flat steel plates extending from the respective short sides of the members I and II and between the strip-shaped flat steel plates extending from the short sides of the members II and III to be connected and fixed together. ) A general purpose sleeper set for temporary installation of rails in tunnels, including a group (25) of strip-shaped steel plates (IV).

[0007]

[Action and effect]

 As shown in FIG. 1, the strip-shaped flat steel plate (5) extending from the short side of the member I and the strip-shaped flat steel plate (12) extending from one short side of the member II are opposed to each other, and the strip-shaped flat steel plate extending from the other short side of the member II is formed. The flat steel plate (12) and the strip-shaped flat steel plate (19) extending from the short side of the member III are opposed to each other, and these strip-shaped steel plate groups are bolted and fixed through the respective holes. When the members I, II and III are fixed, their curved edges together form a curved arc of the same curvature as the tunnel main girder, and also the ends of these strips of members I, II and I II. Since the rim is provided with a notch that fits into the main girder of the tunnel, as shown in FIG. 7, the sleeper is firmly fixed in the tunnel simply by fitting the notch to the inner edge of the flange. In addition, the removal of sleepers is extremely easy.

When the tunnel inner diameter is large, as shown in FIG. 6, the contact plate group IV is provided between the strip-shaped flat steel plates extending from the short sides of the members I and II and between the strip-shaped flat steel plates extending from the short sides of the members II and III. It is extremely easy to increase the size of the sleepers by simply inserting them into the holes and bolting and fixing these strips of steel through their respective holes. Sleepers do not have to be easy. Furthermore, the sleeper set of the present invention can be disassembled before and after use as shown in FIGS. 2, 3, 4 and 5 and can be transported, and the bulky sleeper is not required to be transported.

Further, the strip-shaped flat steel plates (4) and (18) extending from the long sides (1) and (15) of the members I and III forming the rail mounting portion, and the linear length of the member II forming the walking scaffolding plate mounting portion. The strip-shaped flat steel plate (11) extending from the side (8) and the short sides (2), (9), (9 '), and (16) of the members I, II, and III that are to be the legs that support them Since the strip-shaped flat steel plates (5), (12), (12 '), and (19) are reinforced by the steel plates A, B, and C respectively, the members I, II, and II As shown in Fig. 1, by assembling bolts at the construction site and tightening bolts, a solidly integrated sleeper is obtained, and when it is attached to the flange, it forms a curved arc with the same curvature as the main tunnel girder. Formed on the edge of a strip-shaped flat steel plate that extends in a perpendicular direction from the group of steel plates The cutouts are fitted into the tunnel flange and firmly fixed to the tunnel main girder (the X-Y line connecting the cutouts matches the arcuate curved surface of the tunnel main girder, and the integrated steel plate group and strip flat steel plate). The flange is sandwiched between the notch and the rest of the plate and fixed.) Since these steel plates are supported, there is a feature that they can sufficiently bear the weight of the vehicle after the rail is laid. Of course, if necessary, members I, II and III may be provided with a reinforcing plate as shown in (27) of FIG. 2 or a hollow part as shown in (28) of FIG. It can also be provided in.

[0010]

【Example】

 FIG. 1 is a perspective view of a sleeper obtained by assembling the sleeper set according to the present invention at a construction site.

This assembled sleeper, as shown in FIG. 7, connects arc-shaped unit segments in the excavation shaft in the circumferential direction and the length direction to form a segment tunnel (101) to form a connection flange of the segment tunnel. The rails (103) and (104) are laid on the strip-shaped flat steel plates (4) and (18), and the walking scaffolding plate (105) is laid on the strip-shaped flat steel plates (11). .

The sleeper set according to the present invention comprises members I, II, III and IV. As shown in FIG. 2, the member I was surrounded by a long side (1) and a short side (2) intersecting at right angles, and a curve (3) connecting the ends of these sides and protruding outward in an arc shape. Shaped steel plate, for example, 0.5 mm thick steel plate (A), and strip-shaped flat steel plates (4) and (5) with a thickness of 0.5 mm and a width of 50 mm on the long side and the short side in the direction perpendicular to the steel plate surface. Notches (7) and (7) that fit into the main girder of the tunnel are provided at the end edges (6) and (6) of the strip-shaped flat steel plate that is welded and fixed to the rail. On the strip-shaped flat steel plate (4) extending from the long side (1) forming the part, there are holes for laying and fixing the rail, and also from the short side (2) forming the leg supporting the rail mounting part. The strip-shaped flat steel plate (5) is sandwiched between members I and II or member IV near the end thereof. , The opening for bolted (22) group are provided.

As shown in FIG. 3, the member II has a group of two short pieces (9) and (9 ′) orthogonal to each other at both ends of the long piece (8) and an outwardly projecting arc shape connecting the ends of these short pieces. In the steel plate (B) surrounded by the curved edges (10), the strip-shaped flat steel plates (11) (12) (12 ') are perpendicular to the steel plate surface in the long side (8) and short side ( 9) Notches (14) (14 ') that extend along the (9') and fit into the main girder of the tunnel are provided at the end edges (13) (13 ') of the walking. The ends of the strip-shaped flat steel plates (12) and (12 ') from the short sides (9) (9') serving as legs supporting the strip-shaped flat steel plate (11) extending from the straight long side corresponding to the scaffold plate mounting portion Fasten the members I and II or II and III in the vicinity with the member IV with or without sandwiching them and bolting them. There is a group of apertures (23) for

Member III is essentially the same shape as member I, but need not be the same size as member I. However, the orientation of the strip-shaped flat steel plates (18) (19) extending along the long side and the short side of the steel plate is the direction perpendicular to the member I with respect to the steel plate surface.

The curved edges of the steel plate group of these members form a curved arc having the same curvature as the main tunnel girder when the members I, II and III are sequentially joined so that the steel plate surfaces become the same surface. The length of each short piece of these members is such that members I, II and III are sequentially connected so that the curved edges are integrated to form a curved arc having the same curvature as the main tunnel girder. At this time, the flat steel plate groups extending along the long pieces of the members I and III have the same horizontal plane to form the rail mounting portion, and the flat steel sheets extending along the long pieces of the member II are at a position lower than the horizontal plane and parallel to it. The length is suitable for constructing a footrest board support for pedestrians.

The member IV is composed of a strip-shaped flat steel plate provided with a group of holes (26) for fastening bolts on the short side (25), and if necessary, between the members I and II, and II. The size of sleepers is reduced from 1350 mm to 1380 mm, for example, by bolting through the group of holes and the group of holes (26) provided in the strip-shaped flat steel plates that are inserted between II and I and form the respective legs. It provides a sleeper that can be used for both tunnels with an inner diameter of 2000 mm and tunnels with a diameter of 2150 mm.

When laying the sleeper set of the present invention as a sleeper having an assembly size of 1350 mm on a flange of a unit segment of a tunnel having an inner diameter of 2000 mm, for example, by lowering the walking scaffolding plate mounting portion by 170 mm from the rail mounting portion, a rail gauge There is enough space for laying a 653 mm earth and sand transport vehicle and a rail for running a rear truck for material transportation of one rail, and a 380 mm walking scaffolding board mounting width, and walking. It is possible to secure an effective walking height with enough room for the person.

FIG. 2 shows that the member I of the sleeper set according to the present invention is fixed by welding the reinforcing material (27) to the steel plate A, and a cutout for fitting into the tunnel main girder is also provided at the end of the member to reduce the weight of the parts. Another example in which a hollow portion is provided in a steel plate for this purpose is shown. 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. For example, the members I, II, and III may be L-shaped or desk-shaped strip-shaped flat steel plates that are welded and coated on one side surface, or the steel plate portion and the strip-shaped flat steel plate portion are integrally formed. However, it is also possible to coat not only one side surface of the strip-shaped flat steel sheet but also both side surfaces thereof, if desired.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a sleeper set is assembled.

2 is a perspective view of a member I. FIG.

FIG. 3 is a perspective view of a member II.

FIG. 4 is a perspective view of a member III.

FIG. 5 is a perspective view of a member IV.

FIG. 6 is a cross-sectional view showing a state in which a member IV is sandwiched between members I and II and bolted and fixed.

FIG. 7 is a perspective view of a use state in a tunnel.

[Explanation of symbols]

 (1) Long side of steel plate A of member I (2) Short side of steel plate A of member I (3) Curved edge of steel plate A of member I (4) Strip flat steel plate from long side of member I (5) Member Strip-shaped flat steel plate from the short side of I (6) Strip-shaped flat steel plate protrusion of member I (7) Notch of strip-shaped flat steel plate edge of member I (8) Long side of steel plate B of member II (9) (9 ' ) Short side of steel plate B of member II (10) Curved edge of steel plate B of member II (11) Strip flat steel plate from long side of member II (12) (12 ') Strip flat steel plate from short side of member II (13) (13 ') Strip-shaped flat steel plate protruding portion of member II (14) (14') Strip-shaped flat steel plate of member II Notch at edge (15) Long side of steel plate C of member III (16) Steel plate of member III Short side of C (17) Curved edge of steel plate C of member III (18) Strip-shaped flat steel plate from long side of member III (19) From short side of member III (20) Strip-shaped flat steel plate protrusion of member III (21) Notch of strip-shaped flat steel plate edge of member III (22) Bolt tightening hole (23) Bolt tightening hole (24) Bolt tightening hole Hole (25) Member IV (26) Bolt tightening hole (101) Segment (102) Flange (103) Rail (104) Rail (105) Scaffolding plate

Claims (1)

[Scope of utility model registration request] 1. A steel plate (A) having a shape surrounded by a long side (1) and a short side (2) intersecting at a right angle and a curve (3) which connects the ends of these sides and which is curved outwardly in an arc shape. The strip-shaped flat steel plates (4) and (5) extend in the direction perpendicular to the steel plate surface and extend over the entire length of the long side and the short side, and the end edges (6) thereof.
Notch (7) that fits into the main girder of the tunnel at (6 ')
A member (I) provided with (7 ') and two short piece groups (9) and (9') intersecting at a right angle with the long side (8) and both ends of the long piece and the outside connecting the both ends of the two short pieces. A steel plate (B) having a shape surrounded by a curve (10) protruding in an arc shape in one direction, and a flat steel plate strip (11) (12) (1)
2 ') extends in the direction perpendicular to the steel plate surface over the entire length of the long side (8) and the short side (9) (9') of the steel plate, and the tunnel main girder is provided at the end edges (13) (13 '). A member (II) provided with notches (14) and (14 ') that fit in the above, and long sides (15) and short sides (16) intersecting at right angles and the ends of these sides are connected to form an arc shape outward. In a steel plate (C) surrounded by a curved curve (17), strip-shaped flat steel plates (18) and (19) are formed at right angles to the steel plate surface in a direction perpendicular to the member I and at the long side and short side. A member (II) that extends over the entire length and is provided with cutouts (21) (21 ') that fit into the main girder of the tunnel at its end edges (20) (20').
I), (However, curved edges (3) (1) of the steel plate group of these members
0) (17) integrally forms a curved arc having the same curvature as the main tunnel girder when the members I, II and III are sequentially connected so that the strip-shaped flat steel plates from these steel plates are in the same right angle direction. The length of each short piece of these members is such that when the members I, II and III are sequentially joined so that the curved edges are integrated to form a curved arc having the same curvature as the tunnel main girder. The flat steel plate group extending along the long pieces of the members I and III have the same horizontal plane, and the member I
The flat steel plate extending along the long piece of I has a length suitable for being kept at a position lower than and parallel to the horizontal plane, and the flat flat steel plate (5) extending from the short side (2) of the member I, A strip-shaped flat steel plate (1) extending from the short side (9) (9 ') of the member II
2) Holes (22) (23) (2) for connecting and fixing I and II and II and III respectively in the strip-shaped flat steel plate (19) extending from (12 ') and the short side (16) of the member III.
4) is provided), and in order to increase the size of the sleepers when the inner diameter of the tunnel is large, between the strip-shaped flat steel plates extending from each short side of the members I and II and the member II. Opening holes (2) to be inserted between the strip-shaped flat steel plates extending from each short side of III and connected and fixed together.
6) A general-purpose sleeper set for temporary installation of rails in a tunnel, which includes a group (25) (IV) of strip-shaped steel plates.