JP2003214099A - Conveyance device for segment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveyance device for a segment capable of securing predetermined equipment and material without waiting time for the equipment and material at a working place even when it is far away, and improving execution speed of works of a whole tunnel construction. <P>SOLUTION: The conveyance device comprises a segment carrier 10 having a box shaped carrier body 11 and a segment pedestal 12 protruding from a top face of the carrier body 11 during conveyance. The segment carrier 10 and a locomotive 20 are formed so that passing is possible in a tunnel 5. A space 23 is formed in a side face of the locomotive 20, and passing with the segment carrier 10 loaded with the segment 4 is provided. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a segment conveying device, and more particularly to a segment conveying device in a small cross section tunnel.

[0002]

2. Description of the Related Art In recent years, shield tunnel construction, which is indispensable for the improvement of urban infrastructure, has a tendency to become longer and longer. When the shield tunnel construction becomes long distance, it is desired to accelerate the tunnel excavation.Accordingly, the speed of excavation speed and the speed of segment assembly will increase the speed of bringing in materials such as segments and the speed of unloading the remaining excavated soil. Etc. will be requested. If the inside diameter of the tunnel is large to a certain extent, if the track equipment in the tunnel mine is double tracked and the number of segment trucks is increased, even if the distance becomes long, the necessary amount of materials such as segments will be transported to the face, and the empty segment truck will be used. Can be returned to the starting shaft. Even if the entire line from the vertical shaft to the face is not double tracked, if a siding line section is provided on the way, it is possible to pass the passing segment truck and the returning segment truck.

However, when the diameter of the tunnel a is small like the tunnel a used for electric power, communication, gas, water, etc., the space for laying the rail c is limited, and the rail c is used for the tunnel a.
There is no choice but to lay it in the center of the mine (see Fig. 7 (A)). As in the case where the inner diameter of the tunnel is large, even if the rails c are double-tracked and the segment trucks b pass each other, the segment trucks b do not pass each other as shown in FIG. Therefore, the segment carriage b loads the segment d in the starting shaft, travels on the rail c laid in the center of the tunnel a tunnel, assembles the segment d on the face side, and then the empty segment carriage b is re-assembled. I had returned to the starting shaft. In addition, the upper surface of the segment carriage b is formed into a boat shape, and the segment d is loaded on the segment carriage b to travel on the rail c by the wheels b1 (see FIG. 7B).

[0004]

Since the segment carriage b reciprocates between the starting shaft and the face while carrying the material such as the segment d, when the distance to the face becomes long, the material at the face becomes large. There was a waiting time, and it was not possible to secure the required materials and equipment at the required time,
The construction speed of the entire tunnel construction was decreasing.

[0005]

SUMMARY OF THE INVENTION The present invention has been conceived in view of the above-mentioned problems of the prior art, and even if the distance to the face is long, the waiting time of the equipment at the face does not occur. It is an object of the present invention to provide a transportation device for a segment that can secure the equipment and materials and improve the construction speed of the entire tunnel construction.

[0006]

In order to achieve the above-mentioned object, a segment conveying device of the present invention is a segment conveying device used in a small cross section shield tunnel, in which the bogie main body has a box shape. A segment carriage having a segment pedestal that protrudes from the upper surface of the carriage body during transport and a locomotive connected to the segment carriage, and allows the segment carriage and the locomotive to pass each other in a tunnel pit. It is characterized in that it is formed as follows.

Further, the locomotive of the segment conveying apparatus of the present invention is characterized in that a space is provided on the side surface of the locomotive on the passing side so that the locomotive can pass the segment truck loaded with the segments. It is what

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

<A> Overall Configuration FIG. 1 is a schematic diagram showing a state where the segment carriages 10 pass each other, and FIG. 2 is a schematic diagram showing a state where the segment carriages 10 and the locomotive 20 pass each other. A double track section (a shunt line section) is provided in the tunnel 5 pit, and the shapes of the segment carriage 10 and the locomotive 20 are downsized without changing the shape of the segment 4 to allow the passing in the tunnel 5 pit. The tunnel 5 is constructed by excavating the ground with a known shield machine and assembling the segment 4 on the excavated inner wall.

<B> Segment trolley The segment trolley 10 carries the segments 4 and conveys them. The trolley main body 11 formed in a box shape and the segment 4 are provided.
Segment pedestal 12 on which is mounted, and rotatable wheel 1
4 is provided.

Bogie main body 11 The width of the box-shaped bogie main body 11 is made narrower than the segment width so that the segment bogies 10 can pass each other in the tunnel 5 pit (see FIG. 1). In addition, the trolley body 11
By forming the box into a box shape, a battery and the like can be housed inside, and the size of the locomotive 20 described later can be reduced.

Segment pedestal 12 The segment pedestal 12 on which the segment 4 is mounted protrudes from the upper surface of the trolley body 11 when the segment is transported. The top surface of the segment pedestal 12 is an inclined surface 13 so that the curved segment 4 can be mounted thereon (see FIG. 3).
(See (A)). In addition, the segment 4 is the segment pedestal 12
When mounted on the carriage body 11, it is supported higher than the height of the carriage body 11 so that the bottom of the segment 4 does not come into contact with the carriage body 11. By doing so, as can be seen from FIG. 1, it is possible to allow the segment vehicle 10 loaded with the segments 4 and the empty segment vehicle 10 to pass each other. The upper surface of the conventional segment dolly has a boat shape,
With the method of allocating segments there, the loaded segments cannot collide with each other by colliding with an empty segment truck that is returning.

The segment pedestal 12 is housed in the trolley body 11 when the segment 4 is not mounted (see FIG. 3).
(See (A)). In FIG. 3 (A), the segment pedestals 12 are accommodated by laying them down in the directions facing each other, but they may be accommodated by moving them vertically using a jack or the like. Alternatively, the segment pedestal 12 may be removable.
Further, in the present example, two segment pedestals 12 are provided in pairs in the tunnel axis direction to support the segments 4, but the left and right sides are also provided in pairs to support the segments 4 by four groups.
The four segment pedestals 12 may be tilted at right angles to the tunnel axis direction and housed in the trolley body 11 (see FIG. 3B).

Two to three pieces of segments 4 are loaded on the segment truck 10 in a side boat shape with the bending direction thereof facing the tunnel axis direction, and the outward path, which will be described later, from the rear start shaft side toward the facet side. It travels on the rail 31 and carries the segment 4. In the present invention, the segment truck 1
It is important that the width of 0 is made narrower and the size is reduced so that the segment carriages 10 can pass each other in the tunnel 5 pit. In this example, the segment 4 is assumed as the material to be transported, but the transportation material is, for example,
It may be a member used in tunnel construction such as an extension rail of the rail 30 or a sleeper 34.

<C> Locomotive The locomotive 20 is connected to the segment truck 10 on which the segment 4 is loaded, tow the segment truck 10, and to transport the excavated sand and sand from the excavation face and to carry in the equipment. Is. The locomotive 20 includes a lower body 21, an upper body 22 standing upright from the lower body 21, and rotatable wheels 24. In this example, the locomotive 20 is connected to the front of the segment truck 40 (on the side of the cutting face) (see FIGS. 4, 5, and 6), and pulls or pushes the segment truck 10 to move the forward rail 3
1. Travel on the central rail 33 and the return rail 32.
The locomotive 20 (lower body 21) is formed to have a narrow width to be downsized. As described above, the trolley main body 11 stores the battery and the like, so that the size can be reduced. The locomotive 20 is equipped only with a drive unit such as a motor and a control unit, and is connected to a battery by a cord. The height of the lower body 21 is equal to or less than the height of the carriage body 11.

By forming the locomotive 20 (lower body 21) to have a narrow width, the locomotive 20 can pass between the segment truck 10 and the tunnel 5 (see FIG. 2).
In addition, as shown in FIG.
A space 23 is formed by cutting out a predetermined length L from the side surface of the lower body 21. By forming the space 23, the segment 4 and the locomotive 20 do not collide with each other even if the segment truck 10 loaded with the segment 4 passes each other.
In addition, the width of the upper main body 22 is made narrower than that of the lower main body 21, and the upper main body 22 is configured to be slidable to the left and right.
May be formed.

<D> Rail The rail 30 is laid inside the tunnel mine via the sleepers 34 which are appropriately laid on the arcuate curved surface of the bottom of the tunnel 5. The rail 30 is composed of a forward rail 31, a return rail 32, which are laid in parallel in the tunnel 5 pit, and a central rail 33, which is laid at the center of the tunnel axis (see FIGS. 4, 5, and 6). The outbound rail 31 and the inbound rail 32 form a double track section (a shunt track section). Since the central rail 33 is laid on the face of the face at the center of the tunnel axis, the segment truck 10 can be positioned at the center of the tunnel axis to assemble the segment 4. The outbound rail 31 and the inbound rail 32 branch off from the central rail 33 and are eccentrically laid from the center of the tunnel axis to an interval that allows the segment carriages 10 to pass each other and the segment carriage 10 and the locomotive 20 to pass each other.

Next, a case where a segment is conveyed by using the segment conveying device of the present invention will be described.

<A> Traveling on the forward rail 31 (FIG. 4) The forward rail 31, the return rail 32, and the central rail 33 are laid in the tunnel 5 pit. The segment pedestal 12 is projected from the trolley body 11. In the rear start shaft, etc., the segment 4 is mounted on the segment pedestal 12 in a side boat shape with its bending direction facing the tunnel axis, and the segment truck 10 is loaded with the segments 4 of 2 to 3 pieces. To do. The locomotive 20 is connected to the segment truck 10 on which the segment 4 is loaded.

The locomotive 20 allows the segment carriage 10
Travels on the forward rail 31 from the starting shaft side toward the cutting face side and conveys the segment 4. Next, the segment truck 10 is moved on the center rail 33 to position the segment truck 10 at the center of the tunnel axis, and the transported segment 4 is assembled by an erector or the like, although not shown. During the assembly of the segment 4, the segment truck 10 loaded with the segment 4 to be assembled next is put on standby on the forward rail 31.

<B> Passage between segment carriages 10
(FIG. 5) After the segment 4 is assembled, the segment pedestal 12 is housed inside the trolley body 11. The segment trolley 10 which has accommodated the segment pedestal 12 and which has become empty travels on the central rail 33 in the opposite direction while being pushed by the locomotive 20, and travels on the return rail 32 branched from the central rail 33.
At this time, the emptied segment trolley 10 first passes by the locomotive 20 waiting on the forward rail 31. As described above, the segment carriage 10 and the locomotive 20 are formed to have a small width and are miniaturized, so that they can pass each other without any problem. Next, the segment trolley 10 passing the segment trolley 10 loaded with the segment 4 to be assembled passes through the segment pedestal 12 and the trolley main body 12 in the empty segment trolley 10.
Since it is housed inside, an empty segment truck 10
However, they can pass each other without hitting the segment 4 of the segment truck 10 that is on standby.

<C> Passing between the segment trolley 10 and the locomotive 20 (FIG. 6) As described above, the locomotive 20 is waiting after the emptied segment trolley 10 and the segment locomotive 20. Pass by the trolley 10 (loaded segment 4). Since the locomotives 20 are formed to have a small width and are downsized, the locomotives 20 can pass each other without any problem. Subsequently, the locomotive 20 passes the segment truck 10 loaded with the segments 4, but a space 23 is provided on the passing side of the locomotive 20.
Since the segment 4 and the locomotive 20 do not collide with each other, they can pass each other.

As described above, according to the present invention, the segment carriage 1 is provided.
0 and locomotive 20 are made smaller and narrower in width,
Allows passing in the tunnel 5 pits, eliminates waiting time for materials and equipment at the face, and enables high-speed construction of small-section shields over long distances. Further, since the trolley body 11 is formed in a box shape, it is easy to accommodate the device, and it is easy to cope with automation and unmanned operation.

[0024]

Since the present invention is as described above, the following effects can be obtained. <a> Segment trolleys and locomotives have been made smaller and narrower in width, allowing for passing in tunnel tunnels,
Eliminates the waiting time for equipment and materials at the face and enables high-speed construction of small-section shields over long distances. <B> A battery or the like can be housed in a box-shaped bogie main body, and the size of the locomotive can be reduced. <C> Double-track equipment is possible even in small-diameter tunnels. <D> The materials to be transported are not limited to the segments, but it is also possible to transport materials such as extension rails, sleepers, and pipes used in tunnel construction.

[Brief description of drawings]

FIG. 1 is a schematic view showing a passing condition of segment vehicles according to the present invention.

FIG. 2 is a schematic view showing a passing condition between a segment truck and a locomotive of the present invention.

FIG. 3 is a view showing a segment dolly, (A) is a side view when two segment pedestals are attached, and (B) is a front view when four segment pedestals are attached.

FIG. 4 is a plan view showing a double line portion.

FIG. 5 is a plan view showing a passing state in a double-track portion.

FIG. 6 is a plan view showing a passing state in a double-track portion.

FIG. 7 is a diagram showing a conventional segment truck, (A) is an explanatory view showing a situation in which the conventional segment truck is installed in a small-diameter tunnel, and (B) is a side view of the conventional segment truck.

FIG. 8 is an explanatory view showing a situation where the conventional segment cart cannot be used.

[Explanation of symbols]

10-segment trolley 11: Bogie body 12 ... Segment stand 20 ... locomotive 21 ... Lower body 22 ... Upper body 23 ... space 31 ... Outward rail 32 ... Return rail 33 ... Central rail 4 ... ・ Segment 5 ... Tunnel

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Itsuo Hirano             1-25-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei             Construction Co., Ltd. (72) Inventor Tetsuji Shimada             1-25-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei             Construction Co., Ltd. F-term (reference) 2D055 BA01 GA04

Claims (2)

[Claims] 1. A segment carrier used in a shield tunnel having a small cross section, wherein the carrier main body is formed in a box shape, and the segment carrier has a segment support protruding from the upper surface of the carrier main body during transport, and the segment carrier. And a locomotive connected to the bogie, wherein the segment bogie and the locomotive are formed so that they can pass each other in a tunnel shaft. 2. The segment transport apparatus according to claim 1, wherein the locomotive is provided with a space on a side surface of the locomotive on the side where the locomotives pass each other so that the locomotive can pass the segment truck loaded with the segments. A transport device for a segment, characterized in that