JPH11218000A - Supporting member for mounting installation object on tunnel segment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide supporting members for mounting installation object on tunnel segments capable of easily mounting on the segments. SOLUTION: In a tunnel 1 which is formed with segmens 2 having mounted portions 2i assembled, supporting members 5 with mounting portions (insert holes) 5as are arranged on the segments 2 with the mounting portions 5as mounted on the mounted portions 21 and aligned on the inner wall of the tunnel 1 at random spaces to the longitudinal direction of the tunnel 1 to form supporting member lines (6L, 6R) for supporting installations in the tunnel 1. In this case, the contact curved faces 5at in almost sector shape contacting the segments 2 at almost-sector-shape circular portions 5a have almost the same curvature as that of the outer periphery of the inner wall of the tunnel 1 on the cross section of the tunnel 1, and the circular portions 5a having the mounting portions 5as mounted on the mounted portions 2i are provided with almost-sector-shape side portions 5b to be kept almost horizontal by providing the circular portions 5a on the segments 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support member for attaching an object to a tunnel segment, which is used for attaching an object to a segment in a tunnel.

[0002]

2. Description of the Related Art Conventionally, there is a technique in which a mounting hole is provided in a segment, a support member for mounting an object is mounted in the hole, and an object in a tunnel such as a safety passage or a pipe is provided using the support member. Was.

[0003]

However, in the above-mentioned conventional technique, since it is necessary to provide a mounting hole in each segment, there is a problem that it takes time to mount the support member to the segment.

Accordingly, an object of the present invention is to provide a support member for attaching an object to a tunnel segment that can be easily attached to the segment.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the invention according to claim 1 is directed to a tunnel which is formed by assembling a segment having a portion to be attached to a portion forming an inner wall of the tunnel. The support portion is provided in the segment by attaching the attaching portion to the attached portion, and is provided in alignment with the inner wall of the tunnel at an arbitrary interval in the longitudinal direction of the tunnel to constitute a support member row, and is installed in the tunnel. A support member for supporting an object, having a substantially fan-shaped schematic shape, wherein a contact curved surface of the substantially arc-shaped arc portion that abuts on the segment has substantially the same curvature as the outer periphery of the inner wall surface of the tunnel in cross section. The arc portion has the attaching portion attached to the attached portion, and the arc-shaped portion is provided on the segment so that the one side portion of the substantially sector shape is provided so as to be substantially horizontal. Is, the substantially supports the top by passage of the sector, or is characterized by, supporting the pipe by the generally either sides or the arc portion of the sector.

[0006] As a method of attaching the support member to the segment, for example, as the segment, an insert fitting is buried near the center of a portion forming the inner wall of the tunnel, and the support member is attached to the segment. An insertion hole for inserting a bolt is provided in the arc portion in contact with the arc portion. The support member can be provided on the inner wall surface of the tunnel simply by inserting a bolt into the insertion hole and screwing the bolt into the insert fitting in a state where the contact curved surface is in contact with the inner wall surface of the tunnel. Although there is a method of doing so, other mounting methods may be used.

[0007] As the supporting member, for example, two linear angles each having substantially the same length and one curved angle each having substantially the same length (the longitudinal axis is
(An angle in which a part of the circumference is cut off) is welded to each other, and among them, a shape formed into a substantially sector shape such that an arc portion is formed by a curved angle is exemplified.

Here, the support member is provided on the inner wall of the tunnel by bringing the abutting curved surface of the arc portion of the substantially sector shape into contact with the inner wall of the tunnel, so that the curved angle has a curvature in the longitudinal direction. Is substantially the same as the outer periphery of the tunnel inner wall in the cross section of the tunnel, and is used according to the inner diameter of the tunnel.

When the supporting member is provided at a desired installation position, the length of each angle is adjusted in advance so that one of the two linear angles is substantially horizontal, and cut. .

The support member row is constituted by providing the support members in alignment with the inner wall of the tunnel at arbitrary intervals in the longitudinal direction of the tunnel. However, this support member row may be provided only on one side of the tunnel. , May be provided on both sides of the tunnel. Further, three or more rows can be provided in one tunnel.

Although the support member is configured using an angle, the support member may be configured using another material.

The above-mentioned passage is for a worker or the like to pass through, for example, a plate-like scaffold plate for the worker or the like to step on or to protect the worker or the like from falling to the bottom of the tunnel. Consisting of handrails. Here, since each of the one side portions of the support member row is included in a substantially horizontal plane, if a plurality of the scaffolding plates are continuously provided in a longitudinal direction of the substantially horizontal plane, a tunnel is formed. A passage by the scaffold will be created in the longitudinal direction. The handrail is
For example, it is provided by connecting the upper ends of a plurality of pillars that stand substantially upright at arbitrary intervals. Further, for example, a clamp is welded to the upper side of the horizontally provided one side portion of the support member, which is farther from the inner wall surface of the tunnel. The handrails are provided by fixing the lower ends of the columns by the clamps.

On the other hand, as a method of providing the pipe on the support member, for example, after arranging the pipes at respective installation positions, a substantially U-shaped pipe having the same or slightly larger inner circumference as the outer circumference of each pipe is used. The inner circumference of the half ring is brought into contact with the outer circumference of the pipe, and both ends of the half ring are screwed to the support member with the half ring and the support member sandwiching the pipe, thereby forming the pipe. A method of providing the support member may be used. In addition, as a method of providing the pipe to the support member, for example, a substantially J-shaped hook having a curved portion of the same or slightly larger inner circumference as the outer circumference of each pipe may be formed by welding or the like. There is a method in which the pipe is fixed to a support member, the pipe outer periphery is brought into contact with the inner periphery of the curved portion, and the pipe is supported by the support member. Any method can be used as long as the pipe can be provided.

According to the first aspect of the present invention, since the abutting curved surface abutting on the segment of the arc portion has substantially the same curvature as the outer periphery of the inner wall surface of the tunnel in cross section,
The support member is provided on the inner wall surface of the tunnel with the abutting curved surface of the arc portion exactly abutting on the inner wall surface of the tunnel. Therefore, the stability of the support member with respect to the inner wall surface of the tunnel can be improved. Further, since the one side portion of the substantially sector shape is provided so as to be horizontal by providing the arc portion in the segment, a plurality of the support members are arranged in the longitudinal direction of the tunnel, and the support member row is provided. With this configuration, the row of the one side portion is included in the substantially horizontal plane, and the installation object in the tunnel can be stably provided above the one side portion. Further, since the arc portion has the attachment portion attached to the attachment portion, the support member can be provided on the inner wall surface of the tunnel only by attaching the attachment portion to the attachment portion. Therefore, the work of installing the support member on the inner wall surface of the tunnel can be simplified. Also, since the installation position of the support member is arbitrary, if the support member is provided on both sides of the inner wall of the tunnel and the installation object in the tunnel is provided, the tunnel looks clear and wide, and the appearance is improved. . In addition, the passage can be supported by the upper portion of the substantially fan shape, or the pipe can be supported by any side or arc portion of the substantially fan shape, so that the passage or the pipe can be easily provided in the tunnel. .

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a support member for attaching an object to a tunnel segment according to the present invention will be described below with reference to FIGS.

FIG. 1 is a perspective view showing an application example of a support member for mounting an object to a tunnel segment according to the present invention, FIG. 2 is a front view of a partially broken tunnel, and FIG. 3 is a view for providing passages and pipes. FIG. 4 is an enlarged front view of the member, and FIG. 4 is a perspective view showing a moving state of a moving body that moves on the bottom inside the tunnel.

First, in FIG. 1, reference numeral 1 denotes a tunnel, which is formed in a cylindrical shape by combining segments 2,. A safety passage (passage) 3 and pipes 4 extending in the longitudinal direction of the tunnel are provided on both left and right sides of the tunnel 1 in the longitudinal direction. The support members 5,... For providing the safety passages 3 are provided at portions forming the inner wall surface of the tunnel 1 of the segments 2,. doing. On the other hand, pipe 4,
Are provided in a portion forming the inner wall surface of the tunnel 1 of the segments 2 on the right side of the tunnel 1 in the figure, and are aligned in the longitudinal direction of the tunnel 1 so that the support member rows 6
R. , The safety passage 3, the pipes 4,... Will be described later in detail.

In FIG. 2, reference numeral 10 denotes a moving body which moves on the bottom of the tunnel.
mechanical Guided Vehicles). The AGV (moving body) 10 is provided in the tunnel for transporting earth and sand excavated at the tunnel face to the tunnel exit, and for transporting materials and equipment to the tunnel face. Reference numerals 11,... Denote segments, which are exemplified as the transported articles by the AGV 10, and are transported to the face of the tunnel 1 and used to newly extend and configure the tunnel 1.

In the figure, segments 2 on both sides of the tunnel are shown.
When the AGV 10 moves, the support member rows 6L, 6L provided on the inner wall surface of the tunnel 1
The moving area is provided so as not to obstruct the transport object by the AGV 10 or the AGV 10.

FIG. 3A is an enlarged view of a support member 5 for providing the safety passage 3. On the other hand, FIG. B is an enlarged view of a support member 5 for providing the pipes 4,. 5a
Is a curved member (arc portion), the longitudinal axis of which is constituted by a curved angle in which a part of the circumference is cut off. 5b is a horizontal member (side portion), which is formed by a straight angle. Reference numeral 5c denotes a support member (side portion), which is also formed by a straight angle.

Since the bending member 5a has the same curvature as the inner wall surface of the tunnel 1 of the segments 2,..., When the bending member 5a is provided on the segments 2,. It has an abutting curved surface 5at that exactly abuts the curved surface. Also, one end of the horizontal member 5b is welded to the bending member 5a so that the upper surface 5bj faces upward when the bending member 5a is provided on the segment 2,. Here, the position where the welding is performed is within the surface of the curved member 5a on the side facing the narrow angle, and
When the bending member 5a is provided in the segments 2,... When the bending member 5a is provided on the segment,... 2, the horizontal member 5b is horizontal. When the bending member 5a is provided in the segments 2,..., The support member is provided at a portion below the bending member 5a and at a portion of the end of the horizontal member 5b from one end that is not welded. 5c are welded at both ends. Here, when the bending member 5a is provided in the segments 2,.
The lower surface 5ck of c is obliquely downward.
An insertion hole (mounting portion) 5as for inserting a bolt is provided in the middle of the bending member 5a in the longitudinal direction.
The support member 5 is configured as described above.

As shown in FIG. 2, the segments 2,.
Inserts 2i,... For tightening and fixing bolts are buried in the vicinity of the center of each of the portions forming the inner wall side of the tunnel 1. Then, a bolt is inserted into the insertion hole (mounting portion) 5as and further tightened and fixed to the inserts 2,... So that the contact curved surface 5at fits perfectly with the curved surface constituting the inner wall side of the tunnel 1 of the segments 2,. In contact with the horizontal member 5b in a horizontal state,
The support member 5 is fixed to the segments 2,.

The support members 5,... Are fixed to the segments 2,... At predetermined positions on the left and right sides of the tunnel 1 by the above-described fixing method, and the support member rows 6L, 6R are respectively provided on the left and right sides of the tunnel 1. Is configured.

Hereinafter, a specific configuration of the safety passage 3 and a method of providing the same will be described. The safety passage 3 is for a worker or the like to pass through, and is a plate-like scaffold plate 3a,... For the worker or the like to step on, and a handrail for protecting the worker or the like from falling to the bottom of the tunnel. 3t,..., Supporting columns 3s,... Supporting the handrails 3t,.
.., etc.

Are continuously mounted on the upper surfaces 5bj,... Of the horizontal members 5b,... Of the support member row 6L, and a passage extending in the longitudinal direction of the tunnel is formed on the left side of the tunnel. The lower ends of the columns 3s are fixed by clamps (not shown) welded to the horizontal members 5b of the support member row 6L on the side far from the inner wall surface of the tunnel. At the upper end of the support 3s,.
Is provided by screwing. Handrail 3t, ...
Are inserted through the clamps 3sr,... And are supported by the columns 3s,. The chains 3c,.
are provided so as to connect the vicinity of the center in the longitudinal direction of s,.

Here, the safety passage 3 is provided so as to avoid the moving area of the AGV 10 or the conveyed articles such as the segments 11,.

The way of providing the pipes 4 will be described below. .. 4u,... Are substantially U-shaped half rings. This half ring 4u,
Are formed into external threads. Although not shown, the horizontal members 5b,... Of the support members 5,... Constituting the support member row 6R provided on the right side of the tunnel are not shown in FIG. Are provided with insertion holes. Horizontal member 5b, ...
Are arranged on the upper surfaces 5bj,.
The inner peripheries of the half rings 4u,... Are brought into contact along the outer peripheries of the pipes 4, and the two ends of the half rings 4u,. In this way, the pipe 4,
Are provided in the support member row 6R.

On the other hand, 4j,... Are hooks of a substantially J-shape. The hooks 4j,... Are provided on the support members 5,... By welding their linear outer peripheries to the lower surfaces 5ck,. . The pipes 4,... Are provided in the support member row 6R by bringing the outer peripheral parts of the pipes 4,... Into contact with the inner peripheral parts of the hooks 4j,.

The pipes 4,..., Half rings 4u,..., Hooks 4j,.
Are provided so as to avoid the moving area of the conveyed object such as the segments 11,.

As described above, the safety passage 3 is provided in the support member row 6L on the left side of the tunnel 1 in FIG.
Pipes 4,... Are provided in the right support member row 6R.

Therefore, the insertion holes 5as,
.. Are simply screwed into the inserts 2i,... Of the segments 2,.
Can be provided on the inner wall of the tunnel 1. At this time, the support members 5,... Are provided on the inner wall of the tunnel 1 with their abutting curved surfaces 5at,. It is provided stably. In addition, the AGV 10 and the conveyed object can be moved smoothly and safely in the tunnel 1 without the support members 5,..., The safety passages 3, the pipes 4,. In addition, tunnel 1
Since the safety passages 3 and the pipes 4 are provided in the support member rows 6L and 6R provided on both right and left sides of the tunnel 1, respectively, the tunnel 1 can be seen clearly and widely.

In the above embodiment, the support member is configured using an angle, but the present invention is not limited to this, and may be configured using other materials. Further, when the passages and the pipes are provided on the support member, a half ring or a hook is used, but they may be provided by other methods. Furthermore, the specific configuration and the like of the safety passage are also arbitrary, and it goes without saying that the specific detailed structure and the like can be appropriately changed.

[0033]

According to the supporting member for mounting an object to a tunnel segment according to the first aspect of the present invention, the abutting curved surface of the arc portion which abuts on the segment has an outer peripheral surface of a tunnel inner wall surface in a cross section of the tunnel. Since the curved portions have substantially the same curvature, the support member is provided on the inner wall surface of the tunnel with the abutting curved surface of the arc portion exactly abutting on the inner wall surface of the tunnel. Therefore, the stability of the support member with respect to the inner wall surface of the tunnel can be improved. Further, since the one side portion of the substantially sector shape is provided so as to be horizontal by providing the arc portion in the segment, a plurality of the support members are arranged in the longitudinal direction of the tunnel, and the support member row is provided. With this configuration, the row of the one side portion is included in the substantially horizontal plane, and the installation object in the tunnel can be stably provided above the one side portion. Further, since the arc portion has the attachment portion attached to the attachment portion, the support member can be provided on the inner wall surface of the tunnel only by attaching the attachment portion to the attachment portion. Therefore, the work of installing the support member on the inner wall surface of the tunnel can be simplified. Also, since the installation position of the support member is arbitrary, if the support member is provided on both sides of the inner wall of the tunnel and the installation object in the tunnel is provided, the tunnel looks clear and wide, and the appearance is improved. . In addition, since the passage is supported by the upper portion of the substantially sector shape, or the pipe is supported by any side or arc portion of the substantially sector shape, the passage is supported by the upper portion of the substantially sector shape, or The pipe can be supported by any side or arc of the sector, and a passage or a pipe can be easily provided in the tunnel.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an application example of a support member for mounting an object to a tunnel segment according to the present invention.

FIG. 2 is a front view of a partially broken tunnel.

FIG. 3 is an enlarged front view of a member for providing a passage or a pipe.

FIG. 4 is a perspective view showing a moving state of a moving body moving on the bottom of the tunnel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tunnel 2 Segment 3 Passage (safety passage) 4 Piping 5 Support member 5a Arc part (curved member) 5b Side part (horizontal member) 5c Side part (support member) 6L, 6R Support member row

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Seiichi Nami 2-10-26 Fujimi, Chiyoda-ku, Tokyo Maeda Construction Industries Co., Ltd. (72) Inventor Toshihiko Shioiri 2--10-26 Fujimi, Chiyoda-ku, Tokyo No.Maeda Construction Industry Co., Ltd.

Claims (1)

[Claims] 1. A tunnel constructed by assembling a segment provided with a portion to be attached to a portion forming an inner wall of the tunnel, the tunnel having an attachment portion, and attaching the attachment portion to the attached portion to attach the segment. A support member row is provided by being arranged on the inner wall of the tunnel at an arbitrary interval in the longitudinal direction of the tunnel to form a support member row, and a support member for supporting an installation object in the tunnel, and has a substantially fan-shaped schematic shape. An abutting curved surface that abuts the segment of the substantially fan-shaped arc portion has substantially the same curvature as the outer periphery of the inner wall surface of the tunnel in cross section, and the arc portion has the attachment portion attached to the attached portion. One side of the substantially sector is provided so as to be substantially horizontal by providing the arc portion in the segment, and a passage is supported by an upper portion of the substantially sector, or Supporting the pipe by either sides or the arc portion of the sector, installed objects mounting support member to the tunnel segments, wherein.