JPH05280295A - Transport device for segment - Google Patents

Abstract

PURPOSE:To improve working efficiency for construction of a tunnel by providing, on a carriage, the loading face of a loading table capable of being loaded with a segment in state of standing along the inner face of a tunnel to be constructed, and equipping crawlers. CONSTITUTION:A segment 5 in longitudinally long state is carried in a shaft 2 from a a building material yard outside the pit under the condition of suspending by a crane 3 or the like. Next, the segment 5 in longitudinally long state is loaded on a running wheel 12B under the condition of suspending by the crane 3 or the like, the running wheel 12B is laid on a carry-in rail 6, and the outer circumferential face 5c of the segment 5 in longitudinally long state is brought in contact with the loading face 15a of the loading table 15 of a segment transport device 10 which is provided with supporting crawler 13 so as to contact to the inner face 1a of a tunnel. When the segment 5 is loaded so as to make contact with the end part with the stop face 16a of a stopper 16, the segment 5 is loaded on the segment transport device 10 in longitudinally long state so as to be laid along the inner face of the tunnel 1. Hereby, the width needed for carry-in of the segment 5 can be shortened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a segment transfer device for transferring a segment made of concrete, iron or the like used for lining a tunnel.

[0002]

2. Description of the Related Art FIG. 3 shows a conventional segment truck.
FIG. 4 is an overall view schematically showing the transportation of the segment into the tunnel, and FIG. 4 is a detailed view of the vicinity of the excavator shown in FIG. FIG. 5 is a diagram defining each of the vertically long state and the horizontally long state of the segment, and FIG. 5A is a diagram showing the horizontally long state of the segment. (B) is a figure showing a vertically long state of a segment. As shown in FIGS. 5A and 5B, the segment 5 made of concrete, iron or the like used for lining the tunnel has an arc shape having a thickness t, a width W1 and a length L1.
Therefore, in this specification, as shown in FIG. 5A, the length L1 direction of the segment 5 is aligned with the arrow A and B directions which are the tunnel building directions in the horizontal direction, and the tunnel building direction is set in the horizontal direction. The state in which the segment 5 is tilted in the form of aligning the width W1 of the segment 5 in the directions of arrows E and F orthogonal to is referred to as the “laterally long state” of the segment 5. On the other hand, FIG.
As shown in (b), the width W1 of the segment 5 is aligned in the directions of arrows A and B, and the length L1 direction of the segment 5 is aligned in the directions of arrows C and D, which are up and down directions.
The upright state is referred to as the “longitudinal state” of the segment 5. Conventionally, when carrying the segment 5 from the building material storage site outside the mine to the segment building site in the excavator 20, the segment 5 is hung horizontally by the crane 3 or the like at the building material storage site as shown in FIG. Then, the horizontally long segment 5 is lowered by the crane 3 into the shaft 2 where the construction of the tunnel 1 is started (direction of arrow D). And crane 3
The horizontally-oriented segment 5 is mounted on the segment vehicle 30 such as an empty battery locomotive arranged at the bottom of the shaft 2, and the horizontally-oriented segment 5 is loaded on the segment vehicle 3.
0 is a work rail 3 installed up to the vicinity of the excavator 20
The vehicle 1 is run over and loaded into the tunnel 1, and loaded to a position where the hoist 23 near the excavator 20 can be suspended and stopped. Next, as shown in FIG. 4, the hoist 23 hoists the horizontally long segment 5 from the segment carriage 30 and causes the hoist 23 to travel on the suspension rail 23 extending to the erector 22. 22
Transport to. During this transportation, the horizontally long segment 5
The segment 5 is moved by the hoist 23 from the horizontally long state parallel to the tunnel building direction (arrow A, B direction) to the direction perpendicular to the tunnel building direction along the inner surface of the tunnel 1 (direction perpendicular to the plane of the drawing). Rotate 90 °. Then, the segment 5 that is perpendicular to the tunnel building direction is gripped by the erector 22 and the excavator 20
It was built in the place where the excavation was completed by.

[0003]

However, since the conventional segment truck 30 is formed so as to load the segments 5 in a horizontally long state, the width of the truck 30 should be equal to or larger than the width W1 of the segment 5 to be carried in. Had been formed. For example,
Assuming that the width W1 of the segment 5 is 900 mm, the width of the carriage 30 is about 900 mm. Therefore,
When constructing a tunnel with a large cross section, it was possible to provide a double-track work rail, but as a run such as a Zuritro to carry the earth and sand excavated by one excavator 20 to the outside of the mine. When used, the segment truck 30 carries a piston to carry in the segment 5,
It is necessary to wait for the return of the empty segment carriage 30 that has finished carrying in the segments 5 to drive the segment carriage 30 loaded with new segments 5, and it is not possible to carry in consecutive segments 5, so the work efficiency is poor. ,Also,
The further the cutting face 40a was moved away from the vertical shaft 2 where the excavation proceeded to carry in and out, the lower the work efficiency was. In addition, when constructing a tunnel with a small cross section, it was not possible to lay a double-track work rail, and only a single-track work rail could be laid. It is inevitable to carry out work such as carry-out of scraps, carry-in of segments 5 and the like by properly using, and work efficiency is poor, and work is performed as the face 40a moves away from the vertical shaft 2 where the excavation proceeds to carry in and out. The decrease in efficiency was remarkable. Further, devices such as a workbench and a hydraulic power source are installed near the excavator 20, and in the segment truck 30 loaded with the horizontally long segment 5, the segment 5 could not be directly carried to the erector 22. .. Further, since the segment 5 was loaded into the tunnel 1 in a horizontally long state parallel to the tunnel building direction (arrow A, B direction), in order to build the segment 5, the segment 5 should be aligned with the laying direction. That is, it was necessary to rotate the segment 5 by 90 ° so as to be along the inner surface of the tunnel 1 and perpendicular to the tunnel building direction (direction perpendicular to the plane of FIG. 4). Therefore, the segment 5
By the time of building the hoist 23 etc.
Since extra work such as rotating by ° was required, work efficiency was reduced.

In view of the above circumstances, an object of the present invention is to provide a segment transfer device which can improve the work efficiency of tunnel construction.

[0005]

That is, the first of the present invention
The invention of claim 1 has a movable main body (11) that can travel, and a tunnel (1) on which a segment (5) is to be constructed.
Is provided with segment support means (15, 15a, 16, 16a) that can be supported in a standing manner along the inner surface (1a) of the tunnel, and the movable body is provided with rotatable support wheels (13) on the inner surface of the tunnel. Is provided so that it can travel.

A second aspect of the present invention is the first aspect of the invention, wherein the supporting means has a segment loading surface (15a) formed parallel to the inner surface of the tunnel.

Furthermore, a third aspect of the present invention is the first aspect of the present invention, wherein the support wheel is a crawler (13) that can travel in the tunnel building direction.

The numbers in parentheses are for convenience of showing the corresponding elements in the drawings, and the present description is not limited to the description in the drawings. The same applies to the column of "action" below.

[0009]

With the above structure, the first and second inventions of the present invention are the segment support means (15, 15a, 1).
6, 16a) by loading the segment (5) to be loaded into the tunnel (1) on the moving main body (11) along the inner surface (1a) of the tunnel and in an upright state. , Acts to reduce the width needed to load the segment. Further, the segment carried into the tunnel can be directly supplied to the erector. In addition to the operation of the first aspect of the invention, the third aspect of the invention acts so that the vehicle can travel stably even on the inner surface of the tunnel having irregularities.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing an embodiment of a segment carrying device according to the present invention, and FIG. 2 is a plan view of the segment carrying device shown in FIG.

The segment transfer device 10 according to the present invention comprises:
As shown in FIG. 1 and FIG. 2, it has a trolley 11 which can travel freely, and the width of the trolley 11 is 1/2 or less of the width W1 of the segment 5 to be loaded (that is, the width of the conventional segment trolley 30). 1/2 or less). For example, if the width W1 of the segment 5 is 900 mm,
The width of the carriage 11 is about 450 mm. Further, traveling wheels 23A, 23A, 23B, 23B capable of traveling on rails are provided at the four lower corners of the truck 11. As shown in FIG. 2, the traveling wheels 23A, 23A on one side are provided in series in a direction parallel to the tunnel building direction (arrow A, B direction) on the inner surface 1a side of the tunnel 1, and on the other side of the other side. The traveling wheels 23B, 23B are provided in series in a direction parallel to the tunnel building direction, closer to the center of the tunnel 1.

Further, above the carriage 11 is shown in FIGS.
As shown in FIG. 3, a plate-shaped loading table 15 having an arcuate cross section is projected along the inner surface 1a on the side of the tunnel 1 (in a substantially parallel shape) from the carriage 11 to the side more than the width of the carriage 11. It is installed upright at the loading table 15,
A loading surface 15a formed along the inner surface 1a of the tunnel 1 (in a substantially parallel shape) corresponds to the shape of the outer peripheral surface 5c of the segment 5 and is provided so that the central side of the tunnel 1 faces. A supporting crawler 13 made of a rubber belt crawler or the like is provided at the protruding end of the stacking table 15 so as to be rotatable in a direction parallel to the tunnel building direction (arrow A, B direction). The crawler 13 extends from the loading table 15 in a direction perpendicular to the tunnel building direction and in a horizontal direction (direction of arrow E), that is, the inner surface 1a on the side of the tunnel 1.
It protrudes so that it can abut. Also, the support crawler 1
As shown in FIG. 2, 3 is free to travel in the tunnel building direction and is formed to have a length equal to or longer than the interval between the convex portions 5b of the segment 5. Further, on the upper surface of the dolly 11, a stopper 1 having a cylindrical or block shape with a triangular cross section, a plurality of triangular plate shapes, or the like is provided.
6 is provided along the connecting portion between the end of the loading table 15 and the carriage 11, and the stopper 16 has a stop surface 16a.
Is formed so as to form an angle of approximately 90 ° with the loading surface 15a of the loading table 15 and to extend in the tunnel building direction (direction perpendicular to the paper surface or arrow A, B direction). That is, the stopper 16 is provided so as to prevent the segment 5 loaded on the loading surface 15a of the loading table 15 from sliding on the carriage 11 by the stop surface 16a.

Since the present invention has the above-mentioned structure, in order to construct the tunnel 1 having a large cross section, the excavator 20 is started from the vertical shaft 2 as shown in FIG. While carrying out the scrap generated by the excavation to the outside of the mine, the tunnel 5 is constructed by incorporating the segment 5 at the location where the excavation is completed. Then, in order to carry out excavation with the excavator 20 and to carry out slivers and segments into the bottom of the tunnel 1, a work floor 9 such as an iron plate is provided on a horizontal plane from the vertical shaft 2 to the vicinity of the erector 22 of the excavator 20. It is provided in the form of forming. On the work floor 9, as shown in FIGS. 1 and 2, one carrying-in rail 6 for carrying-in is arranged close to the inner surface 1a side of the tunnel 1 and the segment carrying device 1 is provided.
They are laid along the tunnel 1 at intervals substantially equal to the width of the bogie 11 of 0 and extending in the tunnel building direction (directions of arrows A and B). In addition, as shown in FIGS. 1 and 2, two unloading rails 7A and 7B for unloading are provided on the work floor 9 in the vicinity of the loading rail 6 and the dolly 11 of the segment transfer device 10 travels. It is laid in parallel with the carry-in rail 6 at an obtained interval. Furthermore, on the work floor 9, there is a 1
As shown in FIG. 1 to FIG. 2, the work rail 8 of the book is lateral to the carry-out rail 7B, and at intervals such that the Zuritro 35 and the like can travel using the carry-out rail 7B and the work rail 8. It is laid in parallel with the unloading rail 7B.

As described above, the four rails 6, 7A, 7
When B and 8 are laid on the work floor 9, the scrap produced by the excavator 20 excavating the natural ground 40 is used to remove the scrap, which is shown in FIG. (Dashed line in the figure) And
When the excavator 20 has advanced a predetermined distance, the segment 5 is built at the location where the excavation is completed.

That is, a segment 5 in a vertically long state is provided in a vertical shaft 2 from a building material yard outside the mine, and a crane 3 shown in FIG.
Carry it in the form of being suspended. And crane 3
Segment 5 in a vertically long state, suspended by
As shown in FIG. 1, the traveling wheels 12B, 12B are placed on the loading rail 6 and the support crawler 13 is installed in such a manner that the supporting crawler 13 can abut the tunnel inner surface 1a.
The outer peripheral surface 5c of the vertically long segment 5 is brought into contact with the loading surface 15a of the zero loading table 15 and the end portion of the segment 5 is brought into contact with the stop surface 16a of the stopper 16 so as to be loaded. Then, the segment 5 is loaded on the segment transfer device 10 in a vertically long state along the inner surface of the tunnel 1.

By the way, the vertically long segment 5 along the inner surface of the tunnel 1 is replaced by the segment 5 as shown in FIG.
By offsetting and loading so that the center of gravity of the
A rotational moment due to the load of the segment 5 acts on the traveling wheels 12A, 12A, but the support crawler 13 abuts the inner surface 1a of the tunnel 1 so as to receive the rotational moment, and as shown in FIG. Wheels 12B, 1
Since only 2B is placed on the carry-in rail 6, the segment transfer device 10 can travel in such a manner that the vertically long segment 5 is supported by the support crawler 13 and the traveling wheels 12B and 12B at two points. Therefore, even if the segments 5 are stacked vertically, the segment transfer device 10 can stably travel in the tunnel 1 without falling toward the center side of the tunnel 1 (direction of arrow F). In addition, from the vertical shaft 2 to the inside of the tunnel 1, the support crawler 13 of the segment transfer device 10 is supported and run by an appropriate means such as a temporary rail.

Further, as shown in FIG. 2, the inner surface 1a of the tunnel 1 has irregularities formed by the concave portions 5a and the convex portions 5b of the segment 5 forming the tunnel 1. The supporting crawler 13 has the convex portions. Since the segment transfer device 10 has a length equal to or greater than the interval between the portions 5b and does not fall into the recess 5a and the segment transfer device 10 does not vibrate greatly, the segment transfer device 10 stabilizes the uneven inner surface 1a of the tunnel 1. Can drive. The support crawler 13 is only required to be able to travel stably on the uneven inner surface 1a of the tunnel 1. Therefore, even if the support crawler 13 is not a support crawler 13 composed of a crawler or the like, for example, the support crawler 13 can get over the convex portion 5b of the segment 5. It may be a tire having a plurality of convex feet in the circumferential direction, a tire having a diameter larger than the interval between the convex portions 5b of the segment 5, or the like.

Further, the segment 5 and the segment transfer device 10 are in close proximity to the inner surface 1a of the tunnel 1 and the tunnel 1
Since the vehicle travels in the tunnel 1 along the inner surface, a wide space can be secured in the tunnel 1 for work and passage. That is, the rails 7 that are not used by the segment transfer device 10 are carried out in parallel with the work of loading the segment 5 by the segment transfer device 10 without using different rails.
It is possible to drive the slitter 35 or the like on B and 8 and continue the slitting operation. Therefore, since the segment transfer device 10 and the slitter 35 travel, the work such as the segment loading and unloading can be performed in parallel without using different rails, and the working efficiency is improved.

Further, since the segment 5 is loaded in a vertically long state along the inner surface of the tunnel 1, in order to build the segment 5, the segment 5 is along the inner surface of the tunnel 1 and is in a direction perpendicular to the tunnel building direction. Moreover, it is not necessary to rotate the segment 5. That is, the segment 5 is connected to the erector 2
2 to the vicinity of 2, and the segment 5 on the segment transfer device 10 is directly gripped by the erector 22 to
2 can build a segment 5. Therefore, before the segment 5 is built up by the erector 22, extra work such as transshipment or rotation of the hoist 23 shown in FIG. 4 or the like does not occur, and the work efficiency is improved.

On the other hand, the empty segment carrier 10 that has finished supplying the segment 5 to the erector 22 is
To prepare for loading work of the segment 5 in the building material storage area, etc. by traveling on the carry-out rails 7A and 7B and carrying out in advance, in synchronism with the carrying-out of No. 5, or while the Zuritro 35 is not running. You can Therefore, since the unloaded segment transfer device 10 does not block the loading rail 6, the segment transfer device 10 loaded with the segments 5 travels on the loading rail 6 and continuously moves the segment 5 into the tunnel 1. Can be brought in.

As described above, the segment transfer device 10
However, by loading the segments 5 to be loaded into the tunnel 1 in a vertically long state along the inner surface of the tunnel 1, the width required to load the segments 5 can be reduced. In the case of the tunnel 1 having a large cross section, although the rail for traveling in the zuritro could not be conventionally laid, the rail of the segment transfer device 10 can be double-tracked and the rail for traveling in the zuritro 35 can also be laid. Not only that, the segment 5 carried into the tunnel 1 is directly supplied to the erector 22 without being rotated by the hoist 23 or the like so that the segment 5 extends along the inner surface of the tunnel 1 and is perpendicular to the tunnel building direction. Therefore, the work efficiency of tunnel construction is improved.

Although the tunnel 1 is described as having a large cross section in the above-mentioned embodiment, the present invention can be applied to a tunnel having a medium or small cross section, which can conventionally be laid only with a single-line work rail. Thus, since the double-track work rail can be laid, the work efficiency of tunnel construction is improved.

Further, in the above-described embodiment, the segment 5 is supported in such a manner that the outer peripheral surface 5c of the segment 5 is supported by the stacking table 15, but it is sufficient that the segment 5 can be stood upright and supported. For example, the ends of the segments 5 may be supported by being clamped by a clamp or the like. However, in this case, the support crawler 13 is provided so as to be attached to another frame or the like that is erected on the carriage 11, or the support crawler 13 is formed so as to be detachable from the segment 5 and set in a vertically long state. It will be attached to the end of the segment 5.

[0024]

As described above, the first aspect of the present invention
The invention of claim 1 has a movable body such as a trolley 11 which can travel freely, and supports the movable body in the form of being erected along the inner surface of the tunnel such as the inner surface 1a of the tunnel 1 in which the segments such as the segment 5 are to be constructed. A segment supporting means such as a stacking table 15, a stacking surface 15a, a stopper 16 and a stopping surface 16a is provided, and the movable main body has a rotatable support crawler 1.
Since the supporting wheels such as 3 are provided so as to be able to travel on the inner surface of the tunnel, the segment to be carried into the tunnel by the segment supporting means is arranged in a vertically elongated state along the inner surface of the tunnel. Since the width required to load the segment can be reduced by loading it on the moving body with, it is not possible to lay a rail for traveling in the past in the case of a tunnel with a large cross section. , The rail of the moving body can be double-tracked, and the rail for Zuritro traveling can also be laid, and if it is a tunnel with a small or medium cross section, the conventional single rail work rail can be laid, but for the double-track work Rails can be laid. Furthermore, since the segment carried into the tunnel can be directly supplied to the erector without rotating with a hoist or the like so that it becomes a direction along the tunnel inner surface and perpendicular to the tunnel building direction,
The work efficiency of tunnel construction is improved.

The second aspect of the present invention is the first aspect of the present invention, wherein the supporting means has a segment loading surface such as a loading surface 15a formed parallel to the inner surface of the tunnel. The same effect as that described above is obtained.

Furthermore, in the third aspect of the present invention, in the first aspect, the support wheels are constituted by crawlers such as the support crawlers 13 that can travel in the tunnel building direction. In addition, it is possible to drive stably on the inside of the uneven tunnel.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a segment transfer device according to the present invention.

FIG. 2 is a plan view of the segment transfer device shown in FIG.

FIG. 3 is an overall view schematically showing transport of a segment into a tunnel by a conventional segment truck.

FIG. 4 is a detailed view of the vicinity of the excavator shown in FIG.

FIG. 5 is a diagram defining each of a vertically long state and a horizontally long state of a segment, and FIG. 5A is a diagram showing a horizontally long state of the segment. (B) is a figure showing a vertically long state of a segment.

[Explanation of symbols]

 1 ... tunnel (tunnel) 1a ... inner surface (inner surface) 5 ... segment (segment) 11 ... moving main body (carriage) 13 ... supporting wheel (supporting crawler) 15 ... supporting means (loading table) 15a .. Supporting means (loading surface) 16 ... Supporting means (stopper) 16a ... Supporting means (stopping surface)

Claims (3)

[Claims] 1. A movable main body that is movable, and provided on the movable main body with segment support means capable of supporting the movable body in an upright manner along an inner surface of a tunnel for constructing a segment. A segment transfer device in which rotatable support wheels are provided so that they can travel on the inner surface of the tunnel. 2. The segment transfer device according to claim 1, wherein the supporting means has a segment loading surface formed parallel to an inner surface of the tunnel. 3. The segment transfer device according to claim 1, wherein the support wheel is a crawler that can travel in a tunnel building direction.