JP2008240453A - Segment conveying device and segment conveying method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a segment conveying device and a segment conveying method by which a latency time for assembling segments by an erector is eliminated. <P>SOLUTION: The segment conveying device comprises a segment feeding device 18 having a conveying mechanism (a roller conveyor 21) for conveying each of a plurality of segments 6, which are arranged at intervals in an axial direction of a tunnel, forward in the axial direction of the tunnel so that the segments 6 may be fed to the erector 7 in sequence from the one in front, a first hoist device 19 for lifting up a plurality of the segments 6 placed on a segment carriage 15 in tiers, conveying them forward in the axial direction of the tunnel, and lifting them down on the segment feeding device 18 in a multi-tier state, and a second hoist device 20 lifting up the segments 6 of upper tiers of the lifted-down segments except the segments 6 of the lowermost tier, and allowing the conveying mechanism 21 of the segment feeding device 18 to convey the segments 6 of the lowermost tier forward in the axial direction of the tunnel. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a segment transport apparatus and a segment transport method for transporting a segment on a segment cart traveling in a tunnel constructed behind a shield machine to an erector provided inside the shield machine.

  The shield machine has a main body having a cylindrical shield frame, a cutter disposed to cut the face at the front of the machine, and earth and sand cut by the cutter inside the machine. Take the reaction force to the earth removing device for taking in, the erector provided inside the excavator body to assemble the segment in a ring shape along the inner peripheral surface of the shield frame, and the segment assembled in the ring shape In order to advance the main body of the excavator, a plurality of shield jacks are provided on the inner peripheral surface of the shield frame at intervals in the circumferential direction.

  Such a shield machine extends the shield jack, presses the cutter against the face, cuts the face with the cutter, takes the excavated earth and sand into the inside of the machine by a soil removal device (screw conveyor, etc.), The main body is moved forward (excavated) according to the extension stroke of the shield jack, and after that, the shield jack is contracted to form a space between the existing segment and the shield jack, and the segment is assembled into a ring shape by an elector in that space. To build a tunnel.

  The segments are loaded on a segment carriage that runs in a tunnel built behind the excavator main body, conveyed from the wellhead side to the face side, and conveyed from the segment carriage to the erector by the segment conveying device. As a cement transfer device, a segment loaded on a segment cart is lifted one by one with a hoist, transferred forward, and suspended on a segment supply device disposed behind an erector. The suspended segment is transferred forward by the feed mechanism provided in the segment supply device and supplied to the erector.

  Specifically, the segment suspended from the segment supply device by the hoist is transferred forward by the feeding mechanism built in the segment supply device, thereby forming a space where the segment is first suspended. . The next segment on the segment carriage is similarly suspended in the space by the hoist, and the segment is also moved forward together with the first segment by the feeding mechanism. By repeating this procedure, a plurality of segments are placed on the segment supply device at intervals in the tunnel axis direction. Thereafter, each segment is transported forward in the tunnel axis direction by the feeding mechanism, so that it is supplied to the erector sequentially from the head segment.

JP 11-166400 A

  By the way, in order to supply segments to the erector one after another without waiting time, it is necessary to store a plurality of predetermined number of segments at predetermined intervals in the segment supply device. For this purpose, each time the segments on the segment supply device are moved forward by the feed mechanism and the leading segment is supplied to the erector, the space formed at the end of the segment supply device is placed on the segment carriage. The next segment must be transported by the hoist.

  However, since the segments on the segment carriage have been transferred to the above-mentioned space of the segment supply device one by one with a hoist, the assembly time of one segment by the erector is supplied to the segment by the hoist. If it is shorter than the time for transferring to the space of the device, etc., the next segment on the segment carriage by the hoist will be ready to grip the next segment after the assembly of the segment gripped by the erector is completed. The process of transferring the segment to the space of the segment supply device is not completed, and each segment on the segment supply device cannot be forwarded by the feed mechanism. For this reason, a waiting time is generated in assembling the segments by the elector, and high-speed enforcement is hindered.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a segment transport apparatus and a segment transport method that can supply segments one after another from a segment supply apparatus and do not cause a waiting time for assembly of the segments in the elector.

  In order to achieve the above-mentioned object, the first invention is that a segment loaded in multiple stages on a segment cart that runs in a tunnel built behind a shield machine and stops at a predetermined position is placed inside the shield machine. A segment conveying device for conveying to an equipped erector, which is arranged behind the erector, and a plurality of segments are placed at intervals in the tunnel axis direction. A segment supply device having a feed mechanism for transporting each segment forward in the tunnel axial direction for supply, and a segment stacked in multiple stages on the segment carriage stopped at a predetermined position behind the segment supply device in the tunnel axial direction Are lifted multiple times, transferred forward in the tunnel axial direction, and suspended in a multi-stage state on the segment supply device. 1 hoist device, and a second hoist device that lifts the upper segment of the segment suspended from the segment supply device in a multi-stage state by the first hoist device except for the lowermost segment. It is characterized by.

  Further, the second invention provides an erector provided inside the shield machine with segments stacked in multiple stages on a segment carriage that runs in a tunnel built behind the shield machine and stops at a predetermined position. A segment conveying method for conveying, wherein a plurality of segments are arranged behind the erector and spaced apart in the tunnel axis direction, and each segment is supplied to the erector sequentially from the first one. A segment supply device that moves forward in the tunnel axis direction, the step of stopping the segment cart at a predetermined position behind the segment supply device in the tunnel axis direction, and lifting a plurality of segments loaded in multiple stages on the segment cart Transporting forward in the axial direction of the tunnel and hanging it in a multi-stage state on the segment supply device, Of the segments suspended from the segment supply device in a multi-stage state, the process of lifting the upper segment excluding the lowermost segment, and the remaining lowermost segment forward in the tunnel axial direction by the segment supply device It has a step of transporting and forming a space where the lowermost segment is first suspended, and a step of hanging the upper segment that has been suspended in the space.

  According to the present invention, segments can be supplied to the erector one after another from the segment supply device, and there is no waiting time for assembling the segments in the erector.

  A preferred embodiment of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, a shield machine 1 includes an excavator body 3 having a cylindrical shield frame 2, a cutter 4 disposed for cutting a face at the front of the excavator body 3, and a cutter. For assembling the earth and sand cut in 4 in a ring shape along the inner peripheral surface of the shield frame 2 and a soil removal device (not shown) for transferring the earth and sand to the rear of the partition wall 5 provided in the shield frame 2 In order to move the excavator main body 3 forward by taking the reaction force from the erector 7 provided inside the excavator main body 3 and the segment 6 assembled in a ring shape, And a plurality of shield jacks 8 provided at intervals.

  The shield machine 1 extends the shield jack 8, presses the cutter 4 against the face, rotates the cutter 4 around an axis parallel to the direction of excavation, etc., cuts the face with the cutter 4, and excavated earth and sand. Is removed to the rear of the partition wall 5 by a soil removal device (screw conveyor or the like), the excavator main body 3 is advanced (excavated) according to the extension stroke of the shield jack 8, and after the dredging, the shield jack 8 is contracted to remove the existing segment 6 A space is formed between the shield jack 8 and the shield jack 8, and the segment 6 is assembled in a ring shape by the erector 7 in the space to construct the tunnel 9.

  The erector 7 is mounted on a base frame 10 formed along the tunnel axis direction. The slide unit 11 is movable in the tunnel axis direction and non-rotatable around the tunnel axis, and the slide unit 11 is rotatable about the tunnel axis. Are provided with a ring-shaped swivel portion 12 that is fitted to the swivel portion, and a grip portion 13 that is provided on the swivel portion 12 and grips the segment 6. The base frame 10 is fixed to a base portion 14 provided on the shield frame 2. The erector 7 pulls the segment 6 gripped by the gripping portion 13 inward in the tunnel radial direction, appropriately moves the slide portion 11 in the tunnel axis direction, and rotates the swivel portion 12 around the tunnel axis as desired, thereby assembling as desired. Move to position and assemble.

  The segment 6 supplied to the erector 7 is transported from the wellhead side to the face side in a state in which the inside of the tunnel 9 constructed behind the excavator main body 3 is loaded on the segment carriage 15 in multiple stages. In the present embodiment, the segment carriage 15 has a three-car train, and the top carriage 15a is loaded with a carbard 16 (which becomes the travel path of the segment carriage 15) in the horizontal direction, and is attached to the intermediate carriage 15b and the rear carriage 15c. , The segments 6 are stacked in two stages. As shown in FIG. 2, the segment carriage 15 travels on a culvert 16 laid on the bottom of the tunnel 9. The segment 6 on the segment carriage 15 is conveyed to the erector 7 by a segment conveying device 17 described below.

  As shown in FIG. 1, the segment transport device 17 transports the segment supply device 18 disposed at the bottom of the tunnel behind the erector 7 and the segments 6 on the segment carriage 15 to the segment supply device 18 while being stacked in two stages. A first hoist device 19 and a second hoist device 20 that lifts only the upper segment 6 of the two-stage stacked segments 6 placed on the segment supply device 18 by the first hoist device 19. Yes.

  The segment supply device 18 has a roller conveyor 21 extending from the back of the erector 7 to the rear in the tunnel axial direction. The roller conveyor 21 is spaced apart in the tunnel axial direction with the segments 6 being laterally convex downward. A plurality are placed apart. When the roller conveyor 21 is driven, each segment 6 on the roller conveyor 21 is transferred forward in the tunnel axis direction, and is supplied to the erector 7 in order from the top segment 6. The roller conveyor 21 corresponds to a feeding mechanism in claims.

  As shown in FIGS. 1 and 3, the roller conveyor 21 includes a plurality of feed rollers 22 that support the lower surface of the segment 6, a support frame 23 that pivotally supports each feed roller 22, and a chain that links each feed roller 22. And a drive motor (not shown) and a traveling wheel 24 provided on the lower surface of the support frame 23. The traveling wheel 24 travels on a rail 26 provided on an invert 25 laid on the bottom of the tunnel 9. The invert 25 is also provided with rails 59 for the traveling wheels 28 of the first subsequent carriage 27. The front end of the first succeeding carriage 27 is connected to the rear end of the base frame 10, the lower end is connected to the roller conveyor 21 of the segment supply device 18 via a connecting member 29 (such as a hook or a rope), and the upper end is the first end. The hoist device 19 is connected to the support frame 31 of the hoist rail 30.

  As shown in FIGS. 1 to 3, the first hoist device 19 extends from above the segment supply device 18 (roller conveyor 21) to above the predetermined position where the segment carriage 15 stops at the upper part in the tunnel 9. A pair of hoist rails 30, a support frame 31 that supports each hoist rail 30, a hoist cart 33 that has a traveling wheel 32 that travels on the hoist rail 30, and a hoist cart 33 that is wound on a hoisting / lowering wire 34. And a suspended segment holding portion 35. The support frame 31 is supported at the front end side by the first subsequent carriage 27 and at the rear end side by the second subsequent carriage 36. The second succeeding carriage 36 travels on a rail 38 laid on the bottom of the tunnel via a block 37 so as to sandwich the culvert 16 from the left and right in the tunnel width direction. To the first subsequent carriage 27.

  The segment holding portion 35 of the first hoist device 19 includes a substantially rectangular plate-like base portion 39 that is horizontally suspended from a hoist cart 33 via a winding up and down wire 34, and legs that extend downward from the four corners of the base portion 39. And a claw portion 41 that is provided at the lower end of the leg portion 40 so as to extend in a direction orthogonal to the leg portion 40 and is rotatable about an axis along the longitudinal direction (vertical direction) of the leg portion 40. The leg 40 is set so that the distance between the left and right parts in FIG. 2 is larger than the width of the segment 6 (the dimension in the tunnel axis direction after assembly) by a predetermined distance, and the distance between the left and right parts in FIG. The predetermined distance is set narrower than the length (dimension in the tunnel circumferential direction after assembly). This is because the segment 6 is lifted in a balanced manner.

  The first hoist device 19 lifts the segments 6 stacked in two stages on the segment carriage 15 (the intermediate carriage 15b or the rear carriage 15c) in a two-stage manner as follows.

  First, the hoist carriage 33 of the first hoist device 19 is moved above the segment carriage 15, the claw portion 41 of the leg portion 40 is rotated to be along the tunnel axis direction, and the base 39 is suspended from the hoist carriage 33. take down. As a result, the leg portions 40 are located on both sides of the segment 6 on the segment carriage 15. Next, after the claw portion 41 of the leg portion 40 is rotated 90 degrees and the claw portion 41 is positioned below the lower segment 6 on the segment carriage 15, the base portion 39 is wound up by the winding up and down wire 34. . As a result, the segments 6 stacked in two stages on the segment carriage 15 are lifted as stacked in two stages so as to be held by the claw portion 41 from below.

  The raising of the base 39 by winding the winding up and down wire 34 is continued until the upper edge of the base 39 is pressed against the stopper 42 formed on the hoist carriage 33 as shown in FIG. When the base portion 39 is pressed against the stopper 42, the swinging of the base portion 39 suspended from the winding up / down wire 34 is prevented. Thereafter, the hoist carriage 33 moves forward along the hoist rail 30 and stops at a position above the rear part of the segment supply device 18 (roller conveyor 21) as shown in FIG. Then, as shown in FIG. 3, the winding up / down wire 34 is fed out and the base 39 is lowered. During the lowering, the lowering is temporarily stopped, the base 39 is rotated 90 degrees around the vertical axis by a rotation mechanism (not shown), and the segment 6 held by the claw portion 41 is vertically moved to the base 39 via the leg 40. From orientation to landscape. The rotating mechanism is provided in the hoist cart 33 or the base 39.

  The lowering of the base 39 is continued until the bottom surface of the segment 6 held by the base 39 is brought into contact with the feed roller 22 of the segment supply device 18 (roller conveyor 21). When the bottom surface of the segment 6 comes into contact with the feed roller 22, the claw portion 41 is separated from the bottom surface of the segment 6, so that the claw portion 41 is rotated 90 degrees and detached from below the lower segment 6. And the winding up-and-down wire 34 is wound up and the base 39 is raised. Thus, the first hoist device 19 lifts the segments 6 stacked in two stages on the segment carriage 15 as they are stacked in two stages, transports them forward in the tunnel axial direction, and suspends them from the segment supply device 18 in a two-stage stacked state. .

  As shown in FIGS. 1 and 2, a hoist 43 for conveying the culvert 16 is provided on the support frame 31 that supports the hoist rail 30 of the first hoist device 19. The hoist 43 has a pair of hoist rails 44 extending along the tunnel axis direction on both sides of the support frame 31 and wheels that run on the hoist rail 44 so as to be suspended from the support frame 31. The hoist cart 45 is provided, and a gripping portion that is provided on the hoist cart 45 and that holds the culvert 16 placed horizontally on the leading cart 15a via a winding wire.

  The hoist 43 lifts the culvert 16 placed horizontally on the top carriage 15a at two positions with a gap in the tunnel axis direction at the gripping portion, advances the hoist carriage 45, and moves one side above a predetermined assembly position. By loosening the winding up and down wires of the (front) gripping portion, the culvert 16 is oriented vertically and assembled at a predetermined assembly position.

  In addition, a travel rail 38 for the second subsequent carriage 36 and a block 37 that supports the travel rail 38 are placed on the leading carriage 15a, and are not shown in the figure provided at the front of the second subsequent carriage 36. It is gripped by a hoist and conveyed to the left and right in the tunnel width direction and is installed at a predetermined assembly position.

  Next, as shown in FIG. 4, the second hoist device 20 is a lower segment among the segments 6 suspended by the first hoist device 19 on the roller conveyor 21 of the segment supply device 18 in a two-tiered state. 6 is a means for allowing only the upper segment 6 to be lifted while keeping 6 as it is, and allowing the lower segment 6 to be transferred forward in the tunnel axial direction by the roller conveyor 21.

  As shown in FIGS. 1, 3, and 4, the second hoist device 20 is attached to the rear portion of the first succeeding carriage 27 at a distance in the tunnel width direction and extends rearward in the tunnel axial direction. A vertical beam 46, a vertical hoist carriage 47 that engages and travels along each vertical beam 46, a horizontal beam 48 that extends in the tunnel width direction so as to connect the vertical hoist trucks 47, and a horizontal beam A horizontal hoist cart 49 that engages with the beam 48 and travels along the beam 48 and a suspension belt 51 that is suspended from the horizontal hoist cart 49 via a winding wire 50 are provided.

  The interval between the longitudinal beams 46 in the tunnel width direction is set such that the segment 6 conveyed from the upper part to the lower part of the rear of the segment supply device 18 by the first hoist device 19 does not interfere with the longitudinal beam 47. Similarly, the movement range in the tunnel axis direction is set to a range in which the segment conveyed from the upper part to the lower part of the rear part of the segment supply device 18 by the first hoist device 19 does not interfere with the transverse beam 48.

  The transverse beam 48 is moved forward or backward in the tunnel axis direction so as not to get in the way when the first hoist device 19 conveys the segment 6 from above the rear portion of the segment supply device 18 to below. However, after the first hoist device 19 suspends the segment 6 from the rear portion of the segment supply device 18 in a double-stacked state, the first hoist device 19 is moved along the tunnel axis direction to a position above the segment 6.

  Thereafter, as shown in FIG. 4, the suspension belt 51 is wound only on the upper segment 6 of the segment 6 in a two-tiered state, and only the upper segment 6 is lifted. This allows the lower segment 6 to be transferred forward in the tunnel axial direction by the roller conveyor 21 of the segment supply device 18.

  A segment conveying method using the above-described segment conveying device 17 will be described.

  As shown in FIG. 1, the segment carriage 15 in which the segments 6 are stacked in two stages travels from the wellhead side to the face side, and stops at the position of the second subsequent carriage 36. The segment 6 on the rear carriage 15c of the segment carriage 15 is lifted by the first hoist device 19 while being stacked in two stages, transferred forward in the tunnel axial direction, and hung down from the rear of the segment supply apparatus 18 in a two-stage stack. It is.

  In the two-tiered segment 6 suspended from the rear part of the segment supply device 18, the lower segment 6 is left as it is, and only the upper segment 6 is lifted by the second hoist device 20. Thereafter, the lower segment 6 is conveyed forward by a predetermined distance in the tunnel axial direction by the roller conveyor 21 of the segment supply device 18. As a result, a space is formed at the location where the lower segment 6 is first hung (the rear portion of the segment supply device 18).

  In this space, the upper segment 6 suspended by the second hoist device 20 is suspended. The suspended upper segment 6 is conveyed forward by a predetermined distance in the tunnel axial direction together with the previously conveyed lower segment 6 by the roller conveyor 21 of the segment supply device 18. As a result, a space is formed again at the location where the upper segment 6 is suspended (the rear portion of the segment supply device 18).

  Similarly, the segments 6 on the intermediate carriage 15b of the segment carriage 15 are transferred to this space while being stacked in two stages by the first hoist device 19.

  Here, the first hoist device 19 becomes free after the segment 6 on the rear carriage 15c of the segment carriage 15 is suspended in a two-stage stacked state at the rear of the segment supply apparatus 18 as described above. The segment 6 on the intermediate carriage 15b of the segment carriage 15 is picked up, and the two segments 6 are held, waiting on the upper part of the rear of the segment supply device 18.

  That is, the first hoist device 19 is freed by hanging the segment 6 in the two-stage stacked state at the rear of the segment supply device 18 and then the second hoist device 20 is suspended in the two-stage stacked state. The upper segment 6 of the segments 6 is lifted, the lower segment 6 with the segment supply device 18 left is transferred forward in the tunnel axial direction, and the upper segment 6 lifted by the second hoist device 20 is suspended, The segment 6 on the intermediate carriage 15b of the segment carriage 15 is lifted while being stacked in two stages using the time until the segment supply device 18 is suspended and moved forward in the tunnel axis direction. It moves forward in the direction and waits above the rear of the segment feeder 18.

  Therefore, the segment 6 on the rear carriage 15c of the segment carriage 15 and the segment 6 on the intermediate carriage 15b can be successively transferred to the segment supply device 18.

  In addition, since the transverse beam 48 of the second hoist device 20 is disposed at a substantially middle portion in the tunnel height direction, the hoist rail 30 of the first hoist device 19 is disposed at the upper portion in the tunnel height direction. The segment 6 suspended by the first hoist device 19 and in the standby state above the rear part of the segment supply device 18 does not interfere with the transverse beam 48 of the second hoist device 20.

  In addition, the culvert 16 on the top carriage 15a of the segment carriage 15 is lifted by a hoist 43 attached so as to be suspended from a support frame 31 that supports the hoist rail 30 of the first hoist device 19, and forward in the tunnel axial direction. It is transferred and assembled at a predetermined assembling position (a position before the already assembled culvert 16).

  As shown in FIG. 2, the hoist 43 that conveys the culvert 16 is disposed below the segment 6 that is conveyed by the first hoist device 19, and therefore does not interfere with the segment 6 that is being conveyed. Therefore, the conveyance of the culvert 16 by the hoist 43 and the conveyance of the segment 6 by the first hoist device 19 can be performed simultaneously.

  The time when the culvert 16 on the leading carriage 15a is lifted by the hoist 43 is until all segments 6 on the trailing carriage 15c and the intermediate carriage 15b are lifted by the first hoist device 19. Therefore, after the segment 6 on the intermediate carriage 15b is lifted next to the segment 6 on the trailing carriage 15c by the first hoist device 19, the segment carriage 15 (the leading carriage 15a, the intermediate carriage 15b, and the trailing carriage 15c) is empty. It becomes a load and becomes free.

  The free empty segment cart 15 quickly returns to the wellhead side, and instead, the actual segment cart 15 enters the position of the second succeeding cart 36. Similarly, the segment 6 on the trailing carriage 15c and the intermediate carriage 15b of the actual segment carriage 15 is conveyed by the first hoist device 19, and the culvert 16 of the leading carriage 15a of the segment carriage 15 is conveyed by the hoist 43. The

  In detail, the first hoist device 19 lifts the segment 6 on the intermediate carriage 15b while being stacked in two stages, and the empty segment carriage 15 becomes free. Thereafter, the segment 6 lifted by the first hoist device 19 is lifted. It is transported forward in the axial direction of the tunnel, suspended in the rear part of the segment supply device 18 while being stacked in two stages, and the upper segment 6 of the two segments 6 in which the second hoist device 20 is suspended while being stacked in two stages. The lower segment 6 in which the segment supply device 18 is lifted and transported forward in the tunnel axial direction, the upper segment 6 suspended by the second hoist device 20 is suspended, and the upper portion in which the segment supply device 18 is suspended. Using the time until the segment 6 is moved forward in the axial direction of the tunnel, the actual segment cart 15 is entered. Alternative.

  In this way, the actual segment carriage 15 can be made to enter the position of the second succeeding carriage 36 one after another from the wellhead side so as to replace the empty segment carriage 15. That is, the segment carriage 15 that has become empty at the position of the second subsequent carriage 36 can be replaced with the actual segment carriage 15 by using the transport time of the segment 6 as described above, which is efficient. .

  As described above, according to the segment conveying device 17 and the segment conveying method using the same according to the present embodiment, the segments 6 on the segment supply carriage 15 stopped at the position of the second succeeding carriage 36 are continuously moved one after another. Can be conveyed to the segment supply device 18. Thereby, a predetermined number of segments 6 can always be stored (stored) in the segment supply device 18 at predetermined intervals. Therefore, the segments 6 can be supplied one after another from the segment supply device 18 to the erector 7, and a situation where the segments 6 supplied to the erector 7 are insufficient can be avoided, and the assembly time of the segments 6 does not occur in the erector 7.

  The present invention is not limited to the above-described embodiment, and various modifications can be considered without departing from the description of the scope of claims.

  For example, the segments 6 are not stacked in two stages but are stacked in three or more stages, and a plurality of them (three or more stages) are lifted by the first hoist device 19 and transferred forward in the tunnel axial direction. The second hoist device 20 suspends all the upper segments 6 except for the lowermost segment 6, and the lowermost segment 6 is lifted by the roller conveyor 21 of the segment supply device 18. A space is formed in the rear portion of the segment supply device 18 by moving forward in the direction, and the plurality of segments 6 suspended by the second hoist device 20 are suspended in the space, and except for the lowermost segment 6, it is more than that. The second hoist device 20 lifts the upper segment 6 again, and the remaining bottom segment 6 remains. 6 may be repeated step of transferring the forward tunnel axis direction by the roller conveyor 21 of the segment feeder 18. Thereby, even if it is a case where the segment 6 of three steps or more is mounted in the rear part of the segment supply apparatus 18, these segments 6 can be conveyed one by one in the tunnel axial direction.

It is a side view which shows the outline | summary of the segment conveying apparatus which concerns on one Embodiment of this invention. It is the II-II sectional view taken on the line of FIG. It is the III-III sectional view taken on the line of FIG. FIG. 4 is a cross-sectional view showing a step subsequent to FIG. 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shield machine 6 Segment 7 Electa 9 Tunnel 15 Segment trolley 17 Segment conveyance apparatus 18 Segment supply apparatus 19 1st hoist apparatus 20 2nd hoist apparatus 21 Roller conveyor as a feed mechanism

Claims (2)

This is a segment transport device for transporting segments stacked in multiple stages on a segment truck that runs in a tunnel built behind the shield machine and stops at a predetermined position to an erector provided inside the shield machine. There,
A feeding mechanism that is arranged behind the erector, and that a plurality of segments are placed at intervals in the tunnel axis direction, and each segment is moved forward in the tunnel axis direction so as to be supplied to the erector in order from the first one. A segment feeder having
A plurality of segments loaded in multiple stages on the segment carriage stopped at a predetermined position behind the segment supply device in the tunnel axial direction are lifted and transferred forward in the tunnel axial direction, and suspended in a multistage state on the segment supply device. A first hoist device;
A segment comprising: a second hoist device that lifts an upper segment of the segments suspended from the segment supply device in a multi-stage state by the first hoist device, excluding the lowermost segment. Conveying device. A segment transport method for transporting segments stacked in multiple stages on a segment carriage that travels in a tunnel constructed behind a shield machine and stops at a predetermined position to an erector provided inside the shield machine. ,
A segment supply that is arranged behind the above erector, and a plurality of segments are placed at intervals in the tunnel axis direction, and each segment is transferred forward in the tunnel axis direction so as to be supplied to the erector in order from the first one. Equipped with equipment,
Stopping the segment carriage at a predetermined position behind the segment supply device in the tunnel axial direction;
A process of lifting a plurality of segments loaded in multiple stages on the segment carriage, transporting them forward in the tunnel axial direction, and hanging them down in a multistage state on the segment supply device;
A step of lifting the upper segment of the segment suspended from the segment supply device in a multi-stage state, excluding the lowermost segment;
A step of transferring the leftmost segment left behind to the forward direction in the tunnel axis direction by the segment supply device, and forming a space at a position where the lowest segment is first suspended;
A segment conveying method, comprising: a step of suspending the upper segment that has been suspended in the space.

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