JP2018193688A - Conveyance device for tunnel construction - Google Patents

Abstract

To provide a conveyance device for a tunnel construction such as a segment transport device that efficiently and safely transports a segment and so on even in an environment like a circumferential shield tunnel.SOLUTION: A conveyance device for a tunnel construction according to the present invention comprises a moving device 20 which restricts a movement in a direction perpendicular to the moving direction with respect to a ring rail 8 and moves along the ring rail 8, a loading platform 30 which is movable over a horizontal position and a parallel position parallel to the moving direction of the moving device 20, a movable mechanism 40 for moving the loading platform 30, and fixing claws 33 for fixing the segment 4 mounted on the loading platform 30.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a transport device for tunnel construction including a circumferential shield segment transport device that transports a segment assembled by a circumferential shield to a circumferential shield machine.

The shield method is a method of excavating the ground with a shield machine and assembling segments to construct a tunnel. The segment is transported from a starting base such as a starting shaft to the rear of the shield machine. The conveyed segment is assembled by an erector provided at the rear of the shield machine.
In general, the segments are transported from the departure base by a segment transport device using a carriage, and then transferred to the segment transport device and transported to the erector.

  The tunnel alignment in the longitudinal direction of the shield method is often planned in a horizontal direction with a slight gradient. For this reason, the segment to be transported is always kept in a posture in the substantially horizontal direction, such as when it is placed on a carriage at the departure base or when it is transported in the tunnel.

  On the other hand, a tunnel with a linear circumference is adopted for the joining work between the main road tunnel and the ramp tunnel on the expressway. There exists a thing like patent document 1 as a prior art which constructs | assembles this circumferential tunnel. This is a method using a propulsion method, in which a lining body is arranged at a starting base and a rear end thereof is pressed by a propulsion jack to dig up an excavator at the tip of the lining body.

Japanese Patent Laid-Open No. 2006-176267

When constructing such a circumferential tunnel with the shield method, it is necessary to transport the segment from the departure base to a shield machine that can dig the circumference of the circumference (hereinafter referred to as a circumferential shield machine). .
For example, the circumferential shield machine starts downward from a starting base and digs clockwise. In such excavation, the segment transfer device must move downward from the starting base that receives the segment as well as the circumferential shield excavator, and must move clockwise.

Also in the circumferential shield machine, it is desirable that the segment conveying device is horizontally received when receiving the segment at the starting base from the viewpoint of damage to the segment and work safety.
In addition, when the segment transporting device reloads the segment on the segment transfer device, it is desirable from the viewpoint of efficiency and safety that the width direction or length direction of the segment is parallel to the tunnel line. This is the same because, when a segment is directly transferred from the segment transport device to the erector without providing a segment transfer device, many erectors that rotate in the circumferential direction of the tunnel are employed.

  Therefore, an object of the present invention is to provide a transport device for tunnel construction including a segment transport device that transports segments efficiently and safely even in an environment such as a circumferential shield tunnel.

  The invention according to claim 1 of the present application regulates movement in a direction perpendicular to the moving direction with respect to a moving path that changes both in the horizontal and vertical directions, and moves along the moving path, and the movement A loading platform provided in the apparatus and capable of changing over a horizontal position and a parallel position parallel to the moving direction of the moving device, and changing the loading platform over a horizontal position and a parallel position parallel to the moving direction of the moving device. A tunnel construction transport apparatus comprising: a movable mechanism for fixing a load mechanism mounted on the loading platform.

  The invention according to claim 2 of the present application is the transport apparatus for tunnel construction according to claim 1, wherein the movable mechanism includes a link mechanism.

  According to a third aspect of the present invention, the moving path is a rail having a rack gear, and the moving device moves in a direction perpendicular to the moving direction with the rail sandwiched from above and below, the pinion gear meshing with the rack gear. The tunnel construction transport device according to claim 1, further comprising a guide roller for regulating

  In the invention according to claim 4 of the present application, the fixing device is a pair of fixing claws provided with respect to the cargo bed, and the fixing claws are moved so as to slide and approach the cargo bed, The tunnel construction transport device according to any one of claims 1 to 3, wherein the luggage is fixed.

  The invention according to claim 5 of the present application is characterized in that the movement path is a rail provided along the inner surface side of the circumferential shield tunnel. This is a transport device for tunnel construction.

  With the configuration according to claims 1 to 5, in a moving path that changes both in the horizontal and vertical directions such as a circumferential shield tunnel, it is possible to receive a load such as a segment horizontally and parallel to the moving direction during transportation. The baggage can be fixed to the bag, and the baggage can be transported efficiently and safely.

It is explanatory drawing of the circumference shield tunnel to which the segment conveyance apparatus in the 1st Embodiment of this invention was applied. It is explanatory drawing of operation | movement of the loading platform of the segment conveying apparatus in the 1st Embodiment of this invention. It is the segment conveyance apparatus in the 1st Embodiment of this invention, Comprising: (A) is a top view, (B) is AA sectional drawing. It is the segment conveyance apparatus in the 1st Embodiment of this invention, Comprising: (A) is a top view, (B) is BB sectional drawing. It is a segment conveyance apparatus in the 1st Embodiment of this invention, Comprising: (A) is CC sectional drawing in FIG. 4 (A), (B) is DD sectional drawing in FIG. 4 (A). It is the X section enlarged view in FIG.4 (B). It is EE sectional drawing in FIG.4 (B). It is an arrangement plan of a segment conveyance device in a 2nd embodiment of the present invention. It is FF sectional drawing in FIG. It is the Y section enlarged view in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Needless to say, the present invention is not limited to the embodiment.

[First Embodiment]
A first embodiment of the present invention will be described below with reference to FIGS. 1 to 7 of the drawings.
FIG. 1 is a view showing a circumferential shield tunnel to which a segment conveying device of the present invention is applied.
A side surface of a ramp tunnel 1 provided in parallel with a main tunnel (not shown) is opened, and a departure arrival base 2 is constructed. The circumferential shield machine 3 starts excavation downward from the bottom wall 2 a of the start arrival base 2, digs clockwise, and reaches the upper wall 2 b of the start arrival base 2.
In FIG. 1, the circumferential shield machine 3 has completed excavation up to 6 o'clock and the segment 4 is assembled.

The ramp tunnel 1 is provided with a sleeper 1a having a rail, and the segment 4 before assembly is transported to the start arrival base 2 by a carriage 1b that travels on the rail.
As shown in FIG. 1, the bottom wall 2 a and the top wall 2 b of the departure arrival base 2 are formed so as to be in a normal direction with respect to a curved line that the circumferential shield machine 3 excavates. 2c is a side wall of the departure arrival base 2, and 2d is a reinforcing part.
A Telha crane 9 is provided on the upper wall 2 b of the start arrival base 2. The Telha crane 9 conveys the segment 4 from the carriage 1b to the outer segment transport device 10 and the inner segment transport device 11 that are stopped in the start arrival base 2. Further, a stage 2e is provided at almost the same height as the sleepers 1a.

The circumferential shield machine 3 has a circular front sectional shape, and the tunnel axial direction is curved along the alignment of the circumferential shield tunnel. Moreover, the rear part is provided with an erector 5 for assembling the segment 4. The segments 4 assembled by the erector 5 constitute a circumferential tunnel.
A segment transfer device 6 that delivers the segment 4 to the erector 5 is provided behind the erector 5. The segment transfer device 6 moves by grasping the segment 4 along the segment transfer guide rail 7 fixed to the segment 4 whose front end is fixed to the circumferential shield machine 3 and whose rear end is assembled. The rear end of the segment transfer guide rail 7 fixed to the assembled segment 4 can be released as it digs.

What transports the segment 4 from the start arrival base 2 to the segment transfer device 6 is a segment transport device. The segment transport device includes an outer peripheral side segment transport device 10 disposed on the outer peripheral side in the circumferential tunnel constituted by the assembled segments 4 and an inner peripheral side segment transport device 11 disposed on the inner peripheral side.
The outer periphery side segment transfer device 10 and the inner periphery side segment transfer device 11 are provided so as to be movable with respect to the ring rails 8 provided on the outer periphery side and the inner periphery side of the circumferential tunnel along the tunnel alignment. The ring rail 8 is fixed to the assembled segment 4 in an appropriate direction, and corresponds to a moving path that changes both in the horizontal and vertical directions of the present invention.

  The outer periphery side segment transfer device 10 and the inner periphery side segment transfer device 11 receive the segment 4 from the Telha crane 9 in the start arrival base 2, move on the ring rail 8, and are mounted on the segment transfer device 6. Hand over. The outer periphery side segment transport device 10 and the inner periphery side segment transport device 11 receive the horizontal direction of the segment 4 in the start arrival base 2 and set the width direction of the segment 4 in parallel to the tunnel alignment. To move.

Hereinafter, the segment transporting apparatus 10 on the outer peripheral side of the segment transporting apparatus will be described with reference to FIGS. Since it is the same about the inner periphery side segment conveyance apparatus 11, description is abbreviate | omitted.
As shown in FIG. 2, the outer segment conveying device 10 includes a moving device 20 that moves along a ring rail (not shown), and a loading platform 30 that can fix the segment 4 and change an angle with respect to the moving device 20. And the movable mechanism 40 which changes the angle of the loading platform 30 is comprised.

2 (A), 2 (B), and 2 (C) sequentially show from the state when the segment 4 of the outer periphery side segment transport apparatus 10 is received to the state when it moves in the circumferential tunnel. It is.
The loading platform 30 is movable from a horizontal position (FIG. 2A) that receives the segment 4 to a parallel position (FIG. 2C) parallel to the moving direction of the moving device 20. That is, when the loading platform 30 receives the segment 4 at the start arrival base 2 in the state shown in FIG. 2A, the loading platform 30 is moved in a direction parallel to the moving direction of the moving device 20 as shown in FIG. In the state shown in FIG. 2C, the moving device 20 moves in the circumferential tunnel.
In addition, words such as “horizontal position” and “parallel position” in the present specification do not indicate a strict angle, but are based on common technical knowledge.

  As shown in FIG. 2, the moving device 20 includes a moving frame 21, a driving motor 22, a driven wheel unit 23a and a driving wheel unit 23b that roll on a ring rail (not shown), and a hydraulic pressure for operating a hydraulic cylinder. A pump unit 24 is provided. The drive motor 22 rotates the drive wheel unit 23b.

  As shown in FIG. 2, the loading platform 30 includes a loading platform frame 31 that is a main body and a fixing claw 33 that fixes the segment 4 to the loading platform 30. The loading frame 31 is pivotally supported by the loading frame rotating shaft 32 on the moving frame 21 at the rear end. The fixing claws 33 are positioned on both sides of the segment 4 in the width direction (the front-rear direction in FIG. 2C) and fix the segment 4 to the loading frame 31.

  As shown in FIG. 2, the movable mechanism 40 includes a link mechanism including a hydraulic cylinder 41, a first link plate 42, and a second link plate 43. One end of the hydraulic cylinder 41 is rotatably attached to the vicinity of the front end of the moving frame 21, and the other end is rotatably attached to the first link plate 42. One end of the first link plate 42 is rotatably attached near the center of the moving frame 21, and the other end is rotatably attached to one end of the second link plate 43. One end of the second link plate 43 is rotatably attached to the other end of the first link plate 42, and the other end is rotatably attached to the vicinity of the center of the cargo bed frame 31.

When the hydraulic cylinder 41 is extended, the first link plate 42 and the second link plate 43 are opened, the cargo bed frame 31 is in a horizontal state (FIG. 2A), and when the hydraulic cylinder 41 is contracted, the cargo bed frame. 31 rotates counterclockwise (FIG. 2B), the first link plate 42 and the second link plate 43 are folded, and the loading frame 31 is parallel to the moving direction of the moving device 20. (FIG. 2C).
Even if the movable mechanism 40 moves, the segment 4 moves in the same manner as the loading frame 31 because the fixed claw 33 fixes the segment 4 to the loading frame 31.

As shown in FIG. 3A, the moving frame 21 of the outer segment conveying apparatus 10 is formed in a frame shape with a moving vertical frame 21a and a moving horizontal frame 21b.
As shown in FIGS. 3 (A) and 3 (B), a wheel support portion 21c is provided at the lower portion of the moving frame 21, and rotatably supports the driven wheel unit 23a and the drive wheel unit 23b. Yes.
The drive motor 22 is attached below the moving frame 21 and includes a speed reducer 22a. A drive rotary shaft 22b supported by a rear wheel support portion 21c is connected to the speed reducer 22a. With such a configuration, the drive motor 22 transmits the rotational force to the drive wheel unit 23b via the speed reducer 22a and the drive rotation shaft 22b, and the drive wheel upper guide of the drive wheel unit 23b shown in FIG. The roller 23b1 and the pinion gear 23b3 are rotated.
As shown in FIG. 3A, a hydraulic pump unit 24 is provided projecting to the left from the moving frame 21, and a control panel 25 is provided projecting to the right.

As shown in FIG. 3A, the cargo bed frame 31 is formed in a frame shape by a cargo bed vertical frame 31a and a cargo bed horizontal frame 31b.
As shown in FIGS. 3 (A) and 3 (B), the loading platform frame 31 is configured such that the rear end side on which the loading platform rotating shaft 32 is provided is aligned with the moving frame 21, and the front end side is configured to be short. Therefore, the front end side of the moving frame 21 protrudes from the carrier frame 31 on the front end side in plan view. When the loading platform rotating shaft 32 is provided at the rear end side of the moving frame 21 so that the loading platform 30 receives the segment 4 in the start arrival base 2, the loading platform 30 has a horizontal position as shown in FIG. The part of the outer periphery side segment conveyance device 10 that protrudes upward can be almost eliminated. Therefore, the efficiency and safety of the transshipment work of the segment 4 from the Telha crane 9 can be increased.
In addition, although the steel plate is stretched on the mounting surface on which the segment 4 of the loading platform frame 31 is mounted and covers an excessive opening, the flat surface is omitted.

  As shown in FIG. 3B, the movable mechanism 40 that moves the loading platform 30 relative to the moving device 20 is provided near the center in the left-right direction and in front of the drive motor 22.

As shown in FIGS. 4A, 4B, 5A, and 5B, the loading frame 31 is provided with fixing claws 33a, 33b, and 33c. The fixing claws 33a, 33b, and 33c are for fixing the segment 4 mounted on the cargo bed frame 31. The fixed claws 33a, 33b, 33c are provided in a pair in the front-rear direction, the fixed claws 33a on the right side, the fixed claws 33c on the left side, and the fixed claws 33b on the right side from the center.
In this embodiment, since the tunnel cross section is circular, the normal boat-shaped segment 4 is used, so that only the fixed claws 33a and 33c are used. When fixing a deformed segment (K segment) used in a cross section of a double-circular tunnel as in the second embodiment to be described later, a fixed claw 33b having a length longer than the fixed claws 33a and 33c is also used. The
As shown in FIG. 4B, the fixing claws 33a, 33b, and 33c have a hook shape so that the segment 4 does not come out upward.

As shown in FIG. 4B, a fixed claw guide 34 is provided in the loading frame 31 in the front-rear direction. The fixed claw guide 34 passes through the base end portion of the fixed claw 33a, 33b, 33c on the loading frame 31 side, and the fixed claw 33a, 33b, 33c is movable along the fixed claw guide 34. . One ends of the fixed claw hydraulic cylinders 33a1, 33b1, and 33c1 are attached to the lower portions of the base ends of the fixed claws 33a, 33b, and 33c on the loading frame 31 side. The other ends of the fixed claw hydraulic cylinders 33 a 1, 33 b 1, 33 c 1 are attached to the cargo bed frame 31.
As shown in FIGS. 4B and 7, the fixed claw hydraulic cylinders 33a1, 33b1, 33c1 are arranged in two stages with respect to the pair of fixed claws 33a, 33b, 33c.
As shown in FIG. 7, the fixed claw hydraulic cylinders 33a1, 33b1, and 33c1 are protected by housings 33a2, 33b2, and 33c2, respectively.

  When the fixed claw hydraulic cylinders 33a1, 33b1, and 33c1 are expanded and contracted, the fixed claws 33a, 33b, and 33c move in the front-rear direction along the fixed claw guide 34. In FIG. 4B, the pair of fixed claws 33a and 33b when the fixed claw hydraulic cylinders 33a1 and 33b1 are contracted are indicated by broken lines. In this way, the fixing claws 33a, 33b, 33c move in the front-rear direction to fix the segment 4 by sandwiching it in the front-rear direction.

  As shown in FIGS. 4B, 5A, 5B, and 6, the driven wheel unit 23a and the drive wheel unit 23b sandwich the upper flange portion of the ring rail 8 from above and below, As a result, the moving device 20 is restricted from moving in the direction perpendicular to the moving direction and is movable along the ring rail 8.

FIG. 5A shows the configuration of the drive wheel unit 23b. Drive wheel upper guide rollers 23b1 are attached to both ends of the drive rotating shaft 22b supported by the wheel support portion 21c. The drive wheel upper guide roller 23 b 1 is disposed above the upper flange portion of the ring rail 8.
A pinion gear 23b3 is attached to the inside of the drive wheel upper guide roller 23b1. The drive wheel upper guide roller 23b1 is disposed above the rack gear 8d provided inside the upper flange portion of the ring rail 8.
When the drive rotation shaft 22b rotates, both the drive wheel upper guide roller 23b1 and the pinion gear 23b3 rotate. The drive wheel upper guide roller 23b1 does not need to be rotated simultaneously with the pinion gear 23b3, and may be rotated freely.

As shown in FIG. 5A, a drive wheel lower guide roller 23b2 is rotatably attached below the drive rotation shaft 22b supported by the wheel support portion 21c. The drive wheel lower guide roller 23 b 2 is disposed below the upper flange portion of the ring rail 8.
These drive wheel upper guide roller 23b1 and drive wheel lower guide roller 23b2 sandwich the upper flange portion of the ring rail 8 from above and below, so that the movement device 20 is restricted from moving in the vertical direction.
As shown in FIG. 6, the pinion gear 23 b 3 is engaged with the rack gear 8 d and rotated by the rotation of the drive rotating shaft 22 b, and the moving device 20 can move along the ring rail 8.

FIG. 5B shows the configuration of the driven wheel unit 23a. A follower wheel upper guide roller 23a1 and a follower wheel lower guide roller 23a2 are rotatably attached to the wheel support portion 21c in two upper and lower stages. The driven wheel upper guide roller 23 a 1 is disposed above the upper flange portion of the ring rail 8. The driven wheel lower guide roller 23 a 2 is disposed below the upper flange portion of the ring rail 8.
These driven wheel upper guide roller 23a1 and driven wheel lower guide roller 23a2 sandwich the upper flange portion of the ring rail 8 from above and below, so that the movement device 20 is restricted from moving in the vertical direction.

  As shown in FIGS. 5A and 5B, a connecting member 8a is provided between the left and right ring rails 8, and an attachment piece 8b is provided upward. A rail side contact portion 8c is provided on the mounting piece 8b. An attachment stay 26 is provided downward from the moving frame 21, and the attachment stay 26 is provided with a movement-side contact portion 26 a. The rail-side contact portion 8c and the moving-side contact portion 26a come into contact with each other so that power supply and control signal transmission / reception can be performed.

As shown in FIGS. 4B and 7, a rail gripping frame 27a is provided on the moving frame 21 from the left and right sides, and a rail gripping portion 27b is provided at the tip thereof. The rail gripping portion 27b has a C-shaped outer shape, and the upper flange portion of the ring rail 8 can be sandwiched or released from the outside by operating a built-in hydraulic cylinder. . The movement of the moving device 20 can be restricted by gripping the ring rail 8 by the rail gripping portion 27b.
The pinion gear 23b3 can also be stopped by stopping the drive motor 22 or providing a brake mechanism, but the safety can be further improved by using such a regulating device in combination. In particular, when the loading platform 30 is set to the horizontal position, which is the receiving position, it is important to surely stop the moving device 20, which is effective.

The conveyance of the segment 4 by the outer periphery side segment conveyance apparatus 10 is demonstrated mainly with reference to FIG.
The segment 4 is received from the Telha crane 9 at the departure arrival base 2. At this time, the outer segment conveying device 10 is stopped at the position of the start arrival base 2 of the ring rail 8. Then, as shown in FIG. 2A, the movable mechanism 40 is operated (the hydraulic cylinder 41 is extended) to bring the loading platform 30 into a horizontal state. The pair of fixed claws 33 are moved away from each other to receive the segment 4. Since the segment 4 can be received in a horizontal state, a safe and efficient receiving operation can be performed.

  The pair of fixing claws 33 are brought close to each other, the segment 4 is gripped and fixed to the loading platform 30, and the movable mechanism 40 is operated (the hydraulic cylinder 41 is contracted) as shown in FIG. Rotate counterclockwise. At this time, it is more stable if the moving device 20 is stopped. However, if the loading platform 30 is rotated while starting the movement of the moving device 20, the movement of the moving device 20 can be started earlier. Time can be shortened.

The segment 4 is fixed to the loading platform 30 with the fixing claws 33, and the loading platform 30 is set in a state parallel to the moving direction of the moving device 20 (tangential direction of the ring rail 8) as shown in FIG. The segment 4 is moved to the segment transfer device 6. In the outer segment conveying device 10, the angle in the front-rear direction always changes with respect to the horizontal direction along the ring rail 8, but as shown in FIGS. 5 (A) and 5 (B), the driven wheel unit 23a and Since the ring rail 8 is sandwiched between the drive wheel unit 23b, the movement in the direction perpendicular to the movement direction is restricted and the movement can be performed safely. Moreover, since the segment 4 is fixed by the fixing claw 33, the segment 4 is not dropped. Furthermore, when the loading platform 30 is in a state parallel to the moving direction of the moving device 20, the distance between the center of gravity and the ring rail 8 is shortened, and stable movement is possible.
When the segment 4 is delivered to the segment transfer device 6, the delivery can be performed smoothly because it is parallel to the alignment of the tunnel.

  About the inner peripheral side segment conveying apparatus 11, it is the same except that the movable direction with respect to the moving apparatus 20 of the outer peripheral side segment conveying apparatus 10 and the loading platform 30 becomes opposite. Specifically, in order to receive the segment 4 in the horizontal position within the start arrival base 2, the outer segment transport device 10 moves the load platform 30 clockwise while the inner segment transport device 10 11, the loading platform 30 is moved counterclockwise. Further, in order to position the loading platform 30 in parallel with the moving direction of the moving device 20, the outer segment conveying device 10 moves the loading platform 30 counterclockwise, while the inner circumferential segment conveying device 11 moves the loading platform 30. Move clockwise.

[Second Embodiment]
A second embodiment according to the present invention will be described below with reference to FIGS. 8 and 9 of the drawings. In addition, description is abbreviate | omitted about the part similar to 1st Embodiment, and a different part is mainly demonstrated.
In the present embodiment, the circumferential shield excavator 3 includes a first cutter head 3a and a second cutter head 3b. And the inner peripheral side segment conveyance apparatus 11 is applied. In this embodiment, since the double circular circumferential shield machine 3 is used, the circumferential tunnel cross section constituted by the segments 4a and 4b assembled as shown in FIG. 9 is a double circle.

FIG. 8 shows a state when the circumferential shield machine 3 reaches the upper wall 2b of the start base 2. In FIG. 8, the main tunnel H is illustrated. A plurality of outer peripheral wall shield tunnels T constructed along the main tunnel H and the ramp tunnel 1 are indicated by broken lines with the circumferential shield tunnel constructed by assembling the segments 4 as a starting base.
In FIG. 8, a state where the outer peripheral side segment conveying device 10 and the inner peripheral side segment conveying device 11 are positioned in the 6 o'clock direction is indicated by a solid line, and a state where the outer peripheral side segment conveying device 11 is positioned in the 12 o'clock direction is indicated by a dotted line.
As described above, when the segment 4 is transported to the vicinity of the arrival position, the outer peripheral segment transport device 10 and the inner peripheral segment transport device 11 move along the ring rail 8 and rotate nearly 360 degrees. Even in this case, the segment 4 can be fixed and transported along the ring rail 8.

  As shown in FIG. 9, the circumferential tunnel is composed of an A segment 4a, a specially shaped K segment 4b, and a middle pillar 4c, and has a cross section of a double circle. And the outer periphery side segment conveyance apparatus 10 and the inner periphery side segment conveyance apparatus 11 are each arrange | positioned in the space on either side divided by the middle pillar 4c. The outer periphery side segment conveyance device 10 and the inner periphery side segment conveyance device 11 also convey segments one piece at a time in this embodiment. Since the outer segment transport device 10 and the inner segment transport device 11 are arranged in the left and right spaces to transport the A segment 4a and the K segment 4b, the transport time can be shortened.

In FIG. 9, with respect to the fixed segment, the case of the A segment 4a is indicated by a broken line, and the case of the K segment 4b is indicated by a solid line. As shown in FIG. 9, when transporting the K segment 4b, it is necessary to fix the K segment 4b at a position higher than the A segment 4a. Therefore, the fixing claw 33b configured according to the height is also used to fix the K segment 4b. It fixes to the loading platform 30. The middle column 4c is fixed by fixing claws 33a and 33c.
As shown in FIG. 10, the shape 35 on the lower side of the hooks of the fixed claws 33a and 33c facing the upper surfaces of the mounted segments 4a and 4b and the middle pillar 4c is a shape that matches the shape of each segment. . Specifically, the A segment 35a and the K segment 35b are inclined, and the middle column 35c and the other 35d are planar.

As shown in FIG. 9, the outer peripheral wall shield tunnel T is constructed in the right direction from the tunnel space on the right side. The outer peripheral wall shield tunnel T to be constructed is indicated by a broken line.
When the outer peripheral wall shield tunnel T is constructed, a shield tunneling machine, a segment and materials for constructing the outer peripheral wall shield tunnel T are connected to the outer peripheral wall shield tunnel T, the ramp tunnel 1, the start arrival base 2, Must be transported through a circular tunnel. For transporting these materials, the ring rail 8 used when transporting the segment of the circumferential tunnel can be used as it is. By doing in this way, work can be made efficient.

  In particular, since the shield machine for constructing the outer peripheral wall shield tunnel T is carried using the tunnel space on the right side of the circumferential tunnel, as shown in FIG. The ring rail 8 provided in the right tunnel space is provided at a position closer to the segment than the ring rail 8 provided in the left tunnel space. By carrying out like this, it is possible to convey the shield machine for constructing the outer peripheral wall shield tunnel T using the ring rail 8.

[Other variations]
The present invention is not limited to the above embodiment. For example, the following are included.

  In the present embodiment, the apparatus transports a segment, but is not limited to transporting a segment. It can be applied not only to transporting the middle pillar but also to transporting piping and rail equipment.

  In this embodiment, the start arrival base 2 is provided in the 3 o'clock direction of the circumferential tunnel, but may be provided in any position (for example, 5 o'clock direction or 10 o'clock direction). Even if it is provided at an arbitrary position, it is possible to receive the segments 4, 4 a, and 4 b at the start arrival base 2 with the loading platform 30 level.

  In the present embodiment, the circumferential shield machine 3 is started downward from the start arrival base 2 and constructed in the clockwise direction, but the upward tunnel is started and the circumferential tunnel is constructed in the counterclockwise direction. Also good. In this case, the moving direction of the loading platform with respect to the moving device is changed, and the segment is positioned between the moving frame and the loading platform frame in a state where the direction in which the transfer device moves and the direction of the loading platform are parallel to each other. To respond.

The circumferential tunnel does not need to have a constant curvature in all of the linear shapes, and may be a variable one or a straight line in the middle.
Further, in the present embodiment, the transport device is a circumferential tunnel. However, the moving path along which the transport device moves is not a curved path like the circumferential tunnel, and may be a straight slope. In this case as well, the same operation and effect can be obtained by receiving the load with the loading platform horizontal and making the loading platform parallel to the moving direction during movement.

  In this embodiment, the segment conveying device delivers the segment to the erector via the segment transfer device, but the present invention is not limited to this, and the segment conveying device may deliver the segment directly to the erector. In this case, for example, the present invention can be applied to a configuration in which the erector not only rotates in the circumferential direction of the tunnel but also moves in the longitudinal direction of the tunnel to receive the segment.

  Each technical matter in any embodiment may be applied to other embodiments as an example.

DESCRIPTION OF SYMBOLS 1 Ramp tunnel 2 Departure arrival base 3 Circumferential shield machine 4 Segment 5 Electa 6 Segment transfer apparatus 7 Segment transfer guide rail 8 Ring rail 8a Connecting member 8b Mounting piece 8c Rail side contact part 8d Rack gear 9 Teruhakurane 10 Outer side segment conveyance Device 11 Inner peripheral segment conveying device 20 Moving device 21 Moving frame 21c Wheel support 22 Drive motor 22a Reducer 22b Drive rotating shaft 23a Drive wheel unit 23a1 Drive wheel upper guide roller 23a2 Drive wheel lower guide roller 23b Drive wheel unit 23b1 Drive Wheel upper guide roller 23b2 Drive wheel lower guide roller 23b3 Pinion gear 24 Hydraulic pump unit 25 Control panel 26 Mounting stay 26a Moving contact point 27a Rail gripping frame 27b Gripping portion 30 loading platform 31 loading platform frame 32 loading platform rotating shaft 33 fixed claw 34 fixed claw guide 40 movable mechanism 41 hydraulic cylinder 42 first link plate 43 second link plate H main line tunnel T outer peripheral wall shield tunnel

Claims (5)

A moving device that restricts movement in a direction perpendicular to the moving direction with respect to a moving path that changes in both the horizontal and vertical directions, and moves along the moving path;
A loading platform provided in the moving device and capable of changing over a horizontal position and a parallel position parallel to a moving direction of the moving device;
A movable mechanism for changing the loading platform over a horizontal position and a parallel position parallel to the moving direction of the moving device;
A fixing device for fixing a load mounted on the loading platform;
A tunnel transporting device characterized by comprising:   The transport apparatus for tunnel construction according to claim 1, wherein the movable mechanism includes a link mechanism. The moving path is a rail having a rack gear,
The said moving apparatus has a pinion gear which meshes | engages with the said rack gear, and a guide roller which controls the movement of a direction perpendicular | vertical to a moving direction on both sides of the said rail from the upper and lower sides. The transfer device for tunnel construction described.   The fixing device is a pair of fixing claws provided for the cargo bed, and the fixing claws are moved so as to slide and approach the cargo bed, thereby fixing the cargo. The transport apparatus for tunnel construction according to any one of claims 1 to 3.   The transport apparatus for tunnel construction according to any one of claims 1 to 4, wherein the moving path is a rail provided along an inner surface side of a circumferential shield tunnel.

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