JP2002168099A - Suspending metal fittings for segment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide compact, lightweight equipment having a suspension metal fitting, a segment building device and a segment carrying method and to improve the workability in a segment carrying work and a segment building work. SOLUTION: A suspension metal fittings 18 for the segment with its tip portion embedded in a segment S in a freely detachable manner is constituted by providing a large-diameter disc portion 23 at the upper end portion of a shaft portion 21 and forming a male threaded portion 24 on the outer peripheral surface of the disc portion 23 and, on the other hand, a hoisting accessory 17 of a hoist 15 is screwed to the male threaded portion 24 of the suspension metal fittings 18 attached to the segment and raised up and made carriable to a predetermined position; and an erector device 14 supports a disc portion 23 of the suspension metal fittings 18 by a metal fittings receiving member 56 sideward relative to a segment S carried to the predetermined position and receives the segment S and assemble it to the inner wall surface in the tunnel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanging bracket for a segment mounted to transport a segment in a tunnel excavation operation, and a method for transporting a segment in an existing tunnel by using the hanging bracket for a segment. And a segment transport method for transporting segments in an existing tunnel.

[0002]

2. Description of the Related Art In a general shield excavator, a cutter head is rotatably mounted on a front portion of a cylindrical excavator body by a drive motor, and a plurality of shield jacks are circumferentially mounted on a rear portion. Since the shield jack is extended, the excavator body can be moved forward by a reaction force pressing against the existing segment. Also,
An erector device is mounted on the back of the excavator body,
In this erector device, by mounting a new segment in a space between the excavator body advanced by the shield jack and the existing segment, the segment can be assembled in a ring shape to construct a tunnel.

[0003] In such a tunnel excavation operation, the segments are mounted on a carriage from the entrance side of the existing tunnel, are carried in, are lifted by a hoist from a predetermined position, and are conveyed to the rear part of the shield excavator, where the erector device is mounted. Receives the segment and assembles the held segment at a predetermined position on the inner wall surface of the tunnel. In this case, a hanger is attached to the segment carried into the existing tunnel, and the hoist lifts the segment through the hanger, transports the segment to the vicinity of the erector device, and temporarily mounts the erector device on the ground. The placed segment is gripped via the hanging hardware.

[0004] When the segments are transported in the tunnel as described above, since the hoist once mounts the segments on the ground and then is gripped by the erector device, there is a problem that the work time is long and the workability is poor. Therefore, for example, in Japanese Utility Model Publication No. 8-2238, two upper and lower flanges are provided on the hanging hardware attached to the segment, the hook of the hanging device locks the upper flange of the hanging hardware, and the claw of the elector engages the lower flange of the hanging hardware. The assembly is configured to be stopped, and the hanging device is transferred to the erector without hanging down the segment while dropping the segment to the ground, thereby shortening the segment assembling time.

[0005]

However, in the above-described conventional segment delivery apparatus, since the upper and lower flanges are provided on the hanging member, the hanging member itself becomes longer and the weight increases. . If the hanging hardware is long, on the hanging device side, when the segment is transported, the hanging position may be lowered and come into contact with peripheral equipment, and the hanging device must be provided higher, and the occupied space increases. I will. On the other hand, on the erector side, the lower flange must be locked so as to avoid the upper flange of the hanging hardware, which hinders the segment assembling work. Also, when the weight of the hanging hardware increases, on the hanging device side and on the erector side,
The design taking into account the weight of the hanging hardware causes an increase in size and weight of the apparatus, and also causes an increase in cost.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and has been made to reduce the size and weight of the apparatus and to improve the operability of the segment transfer operation and the construction operation, a segment hanging device, a segment construction device, and a segment. It is intended to provide a transport method.

[0007]

According to a first aspect of the present invention, there is provided a segment hanging bracket for detachably mounting a segment on a segment, the tip of which is embedded in the segment. And a large diameter support portion provided at a base end portion of the shaft portion, and a locking portion formed on an outer surface of the support portion.

In the second aspect of the present invention, the engaging portion is a male screw portion formed on an outer peripheral surface of the supporting portion.

In the third aspect of the present invention, the engaging portion is a female screw portion formed on an upper surface of the supporting portion.

In a fourth aspect of the present invention, the locking portion is a plurality of locking holes or locking projections formed on an outer peripheral surface of the support portion.

According to a fifth aspect of the present invention, there is provided a segment construction apparatus, wherein a distal end portion is embedded in a segment, a large-diameter support portion is provided at a base end portion, and a locking portion is formed on an outer surface of the support portion. A hanging metal fitting, a segment conveying device that locks the hanging metal to a locking portion of the hanging metal fitting attached to the segment, lifts the segment, and conveys the segment to a predetermined position; and the support of the segment conveyed to a predetermined position. And an erector device for receiving the segment and mounting the segment on the inner wall surface of the tunnel by supporting the portion from the side.

Further, in the segment construction apparatus according to the present invention, the locking portion is a screw portion formed on the support portion, and the hanging member has a rotary screw portion screwed to the screw portion. It is characterized by:

Further, in the segment construction apparatus according to the present invention, the locking portion is a locking hole formed on an outer peripheral surface of the support portion, and the hanging member is engaged with the locking hole. It is characterized by a plurality of detachable locking pins.

According to the eighth aspect of the present invention, a segment is carried into an existing tunnel, and a lower end of a hanging fitting having a disk and a screw formed at an upper end thereof is embedded in the segment. Attach, rotate while lowering the hoist hanger and screw it into the screw part of the hanger,
The segment is lifted through the hanging metal by lifting the lifting tool, the segment is conveyed to a vicinity of the erector device by the hoist in this lifting state and stopped at the transfer position, and the metal receiving portion of the erector device is While moving forward and supporting the lower surface of the disc portion from the side, the lifting device is lifted while rotating in the reverse direction to release the screwing with the screw portion and deliver the segment. is there.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic view of a segment construction apparatus according to a first embodiment of the present invention, FIG. 2 is a schematic view of a segment hanger according to the first embodiment of the present invention, and FIG. 4, FIG. 4 is a front view of the erector device, FIG. 5 is a front view of a main part of the erector device, FIG. 6 is a sectional view taken along the line VI-VI of FIG.
Shows an outline of the segment delivery method.

In the segment construction apparatus according to the present embodiment, as shown in FIG.
A cutter head (not shown) capable of excavating the ground is attached to a front portion of the vehicle, and can be driven by a drive motor.
On the other hand, a plurality of shield jacks 12 are juxtaposed along the circumferential direction in the rear inner periphery of the excavator body 11, and the shield jacks 12 extend rearward in the excavation direction to excavate the spreader 13 and the inner periphery of the tunnel. By pressing against the existing segment S constructed on the surface, the excavator body 11 can be advanced by the reaction force. An erector device 14 is mounted at the rear of the excavator body 11, and the erector device 14 mounts a new segment S in a space between the excavator body 11 advanced by the shield jack 12 and the existing segment S. To build a tunnel.

The excavator body 11 is located in the existing tunnel.
And a hoist 15 as a segment transport device is movably supported along a guide rail 16. The hoist 15 has a suspender 17 for lifting the segment S. The segment S carried into the existing tunnel is transferred to the erector device 14.
Can be transported to the vicinity. And in this case,
A hanging bracket 18 is detachable from the segment S, and the hoist 15 lifts and supports the segment S via the hanging bracket 18, so that the erector device 14 can directly receive the segment S. .

As shown in FIG. 2, a threaded portion 22 is formed at the distal end of the shaft portion 21 in the hanging bracket 18, while the base portion of the shaft portion 21 has a larger diameter than the shaft portion 21. The disk portion (supporting portion) 23 is integrally formed, and the disk portion 23
A male screw portion 24 as a locking portion is formed on the outer peripheral surface of the. Therefore, by screwing the screw portion 22 of the shaft portion 21 into a screw hole formed at a substantially central portion of the inner peripheral surface of the segment S, the distal end portion of the shaft portion 21 is embedded, and the hanging bracket 18 is attached to the segment S. It can be attached detachably.

In the hoist 15, as shown in FIGS. 1 and 3, a guide rail 16 is supported by a support beam (not shown) along the long direction in the existing tunnel. Multiple running wheels 2
The moving body 26 is movably supported by the moving member 5, and the hanging tool 17 is attached to the moving body 26 via a hanging rope 27 so as to be able to move up and down. A casing 28 is connected to the lower end of the suspension rope 27 by the suspending tool 17, and a rotating shaft 31 is rotatably supported by a bracket 29 fixed in the casing 28 via a bearing 30. A driven gear 32 is fixedly connected to the upper end of the rotating shaft 31, while a suspension member 34 having a female screw 33 that can be screwed to the male screw 24 of the suspension fitting 18 is fixed to the lower end. Also,
A drive motor 35 is mounted on a bracket 29 of the casing 28, and a drive gear 36 meshes with the driven gear 32.

Therefore, when the drive motor 35 is driven to rotate forward, the rotational force of the drive gear 36 is transmitted to the rotating shaft 31 via the driven gear 32, and the suspension member 34 is rotated forward to cause the female screw 33 of the suspension fitting 18 to rotate. While the male screw portion 24 can be screwed, when the drive motor 35 is driven in reverse rotation, the hanging member 34 is rotated in the reverse direction, so that the screwing of the male screw portion 24 to the female screw portion 33 of the hanging bracket 18 can be released.

Further, in the erector device 14, FIG.
As shown in FIGS. 4 and 6, a support ring 42 is fixed to a rear inner peripheral surface of the excavator main body 11 via a ring-shaped bracket 41, and the bracket 41 rotates along the circumferential direction. A plurality of freely supporting rollers 43 are mounted, and the rotating ring 44 is rotatably supported by the respective supporting rollers 43. The swivel ring 44 has internal teeth formed thereon, and the support ring 42
The drive gear 46 of the turning motor 45 attached to the gear is engaged with the internal teeth of the turning ring 44. Therefore, when the turning motor 45 is driven to rotate the driving gear 46, the turning ring 44 meshed with the driving gear 46 can be turned.

A pair of left and right outer cylinders 47 are fixed to the revolving ring 44 in a substantially parallel manner, and an inner cylinder 48 is movably supported on each of the outer cylinders 47.
The lower end of 8 is connected via an arm 49 to a grip box 50 located at the center thereof. In addition, each outer cylinder 4
A lifting jack 51 is attached to each of the arm members 7, and the distal end of the drive rod is connected to each arm 49. Therefore, when the lifting / lowering jack 51 is driven to expand and contract, each arm 49 is moved.
Can move the grip box 50 along the tunnel radial direction.

The grip box 50 has a box shape opened downward, and has a pair of guide rods 52 fixed therein. A movable body 53 is supported on the guide rods 52 so as to be slidable in the longitudinal direction of the tunnel. 54 allows sliding. This moving object 53
A horizontal bracket receiving member 56 is attached to a lower portion of the bracket via a hanging frame 55. A locking groove 57 is formed in the bracket receiving member 56, and a hoist guide is formed along the outer periphery of the locking groove 57. 58 are attached. A pair of left and right locking levers 59 are rotatably supported by the support shaft 60 on the metal fitting receiving member 56, and open / close jacks 61 are connected to base ends of the locking levers 59, respectively.
The tip portions are formed so as to overlap each other and extend to the locking groove 57. Further, a proximity sensor 62 for detecting the shaft portion 21 of the hanging bracket 18 is provided in the bracket receiving member 56 adjacent to the locking groove 57.

Therefore, the moving body 53 is advanced by the slide jack 54 with respect to the segment S suspended on the hoist 17 via the suspension fitting 18, and the shaft 21 of the suspension fitting 18 is engaged with the locking groove 57 of the fitting receiving member 56. , And each opening / closing jack 61 is contracted to rotate each locking lever 59 and lock the shaft 21 of the hanging metal fitting 18 at the tip end, so that the metal fitting receiving member 56 allows the hanging metal fitting 18 to be moved. The segment S can be lifted and supported through the intermediary.

A support jack 63 is mounted on each side of the hanging frame 55, and a support member 64 capable of pressing the inner surface of the held segment S to prevent it from swaying is attached to the distal end.

Here, the tunnel excavation work by the above-described segment construction apparatus of the present embodiment will be described.

As shown in FIG. 1, a plurality of shield jacks 12 are first extended while rotating a cutter head.
When the excavator body 11 is advanced by the reaction force against the existing segment S, the cutter head excavates the ground in front, and the excavated earth and sand is discharged to the outside by a screw conveyor (not shown). Next, one of the shield jacks 12 is operated in the contraction direction to form a space between the shield segment 12 and the existing segment S, and a new segment is assembled into the space by the erector device 14.

In this segment assembling operation, the segment S is mounted on a carrier (not shown) from the entrance side of the existing tunnel and is carried in to a predetermined position. Here, first, the worker uses the predetermined tool to screw the screw portion 22 of the suspension fitting 18 into the carried-in segment S and integrally fixes it. Next, the hoist 15 is moved to stop above the segment S, and the suspending tool 17 is lowered, and the female thread 33 of the suspending member 34 is attached to the male thread 24 of the suspending fixture 18.
To the drive motor 3 while lowering the suspending member 34.
5, the female screw 33 is screwed into the male screw 24.

Then, the lifting device 17 is lifted to lift the segment S via the lifting device 18. In this lifting state, the hoist 15 is moved to the vicinity of the elector device 14 and stopped at the transfer position. Here, the erector device 1
In FIG. 4, first, as shown in FIG.
4 to extend the moving body 53 with respect to the grip box 50.
Move the metal fitting receiving member 56 through the hanging frame 55, and engage the locking groove 5 in the shaft portion 22 of the hanging metal fitting 18.
7 is engaged. Next, when the proximity sensor 62 detects the shaft portion 21 of the hanging member 18 to confirm the engagement between the shaft portion 22 and the locking groove 57, each opening / closing jack 61 is contracted to rotate each locking lever 59. Then, the shaft 21 of the hanging fitting 18 is locked by the tip. Then, the support jack 63 is extended and the support member 64 is securely held by pressing the inner surface of the segment S.

When the bracket receiving member 56 is engaged with the hanging bracket 18 from the side and supports the lower surface of the disk portion 23 to lift and support the segment S, the driving motor 35 reverses the lifting member 34 while raising it. The segment S supported by the hoist 15 can be transferred to the erector device 14 by rotating and releasing the screwing between the male screw portion 24 and the female screw portion 33 of the hanging bracket 18.

Then, from the hoist 15, the
When the segment S is delivered to 4, the hoist 15 moves to the original position to get another segment S,
The elector device 14 transfers the held segment S, returns to the original position after assembling it to a predetermined assembling position, and
5 for the transport of the segment S.

As described above, in the segment construction apparatus according to the present embodiment, the segment hanging metal fitting 18 whose tip portion is removably embedded in the segment S, the large-diameter disk portion 23 at the upper end portion of the shaft portion 21 are provided. And a male screw portion 24 is formed on the outer peripheral surface of the disk portion 23.
Is screwed into the male screw portion 24 of the hanging metal fitting 18 attached to the segment and lifted so that it can be transported to a predetermined position. The receiving member 56 supports the disk portion 23 of the hanging bracket 18 from the side, receives the segment S, and attaches the segment S to the inner wall surface of the tunnel.

Accordingly, the hoist 15 transfers the segment S to the erector device 14 without hanging the segment S on the ground and lowering the segment S transport time, thereby shortening the segment assembling time.

Further, in the case of the segment hanging bracket,
Compared to the conventional hanging hardware provided with two upper and lower flanges, the overall length can be reduced and the weight can be reduced.
5 and the erector device 14 can be made compact and lightweight.

The hoist 15 described in the above embodiment rotatably supports the suspending member 34 on the casing 28 of the suspending tool 17 via the rotating shaft 31.
4, the suspension member 34 is rotated by the drive motor 35 to screw the female thread 33 to the male thread 24 of the suspension fitting 18, but the operator manually rotates the suspension member 34. Then, the female screw portion 33 may be screwed into the male screw portion 24 of the hanging fitting 18.

Alternatively, the hoist 15 of the hoist 15 may be engaged with the male thread 24 of the hanger 18 without rotating. FIG. 8 is a front view of another hoist hanger in the segment building apparatus according to the second embodiment of the present invention, and FIG.
IX-IX section of FIG.

As shown in FIGS. 8 and 9, in the hoist hanger 71 of this embodiment, a horizontal support shaft 74 is attached to a hanging bracket 73 connected to a hanger rope 72. The engaging lid 76 is rotatably supported via a pair of arms 75. The pair of engagement lids 76 are formed with a female screw portion 77 that can be fitted (screwed) to the male screw portion 24 of the hanging metal fitting 18 at the time of close contact.
A torsion spring 78 is mounted on the pair of arms 75 and is urged in a direction to open each engagement lid 76.
A regulating ring 7 is provided on the outer periphery of the pair of engagement lids 76.
9 is provided, and can be moved up and down by an opening / closing jack 80 mounted on the hanging bracket 73. The opening / closing position of the engagement lid 76 is controlled by the position of the regulating ring 79.

Accordingly, by retracting the opening / closing jack 80 and raising the regulating ring 79, the hanging member 71 is lowered to a predetermined position with the pair of engaging lids 76 opened, and the engaging lid 7 is lowered.
6 stops at a position where it can be fitted to the male screw portion 24 of the suspension fitting 18. Here, the pair of engaging lids 76 is closed by extending the opening / closing jack 80 and lowering the regulating ring 79,
The female thread 77 can be adapted to the male thread 24. At this time, when the engagement lid 76 is reciprocated in the circumferential direction,
The female screw portion 77 and the male screw portion 24 can be easily fitted.

As described above, by opening and closing the engagement cover 76, the hanging member 18 can be engaged and disengaged, and the hanging member 71 can suspend the segment S, so that the work for engaging and disengaging the hanging member 18 can be easily performed. Can be.

In the above-described embodiment, the hanging bracket 18 is used.
The screw part 22 is formed at the distal end of the shaft part 21, the disk part 23 is formed at the base end part of the shaft part 21, and the male screw part 24 is formed on the outer peripheral surface thereof. The segment hanging bracket is not limited to this configuration.

FIG. 10 is a front view of a segment hanger according to a third embodiment of the present invention, and FIG. 11 is a front view of a segment hanger and a hoist hanger according to a fourth embodiment of the present invention. FIG. 13 is a front view of a segment hanger according to a fifth embodiment of the present invention, FIG. 13 is a front view of a hoist hanger, and FIG. 14 is a cross-sectional view taken along the line XIV-XIV of FIG. Note that members having the same functions as those described in the above-described embodiment are denoted by the same reference numerals, and redundant description will be omitted.

As shown in FIG. 10, in the segment hanging metal fitting 81 of the third embodiment, a screw portion 83 is formed at the distal end of the shaft portion 82, and the shaft portion 82 is formed at the base end portion.
A disk portion (supporting portion) 84 having a larger diameter than that formed integrally is formed,
Inside the disc portion 84, a female screw portion 85 is formed as a locking portion that opens on the upper surface. Therefore, by screwing the screw portion 83 of the shaft portion 82 to the segment, the hanging metal member 8 is formed.
1 can be removably mounted on this segment. Further, a male screw portion 87 is formed on a rotation shaft 86 of a hoist hanging tool (not shown), and this male screw portion 87 is
Can be lifted by the hoist via the hanging fitting 81 by screwing into the female screw portion 85 of the.

As shown in FIG. 11, in the segment hanging bracket 91 of the fourth embodiment, a screw portion 93 is formed at the distal end of the shaft portion 92, while the shaft portion 92 is formed at the base end thereof. A disk portion (support portion) 94 having a larger diameter than that of the disk portion 94 is integrally formed, and four locking holes 95 as locking portions are formed on the outer peripheral surface of the disk portion 94 at equal intervals in the circumferential direction. on the other hand,
The hoist hanger 96 (not shown) has a cylindrical hollow portion 9.
7, hydraulic jacks 98 are mounted on the outer peripheral surface of the hanger 96 at equal intervals in the circumferential direction, and the locking pin 99 is
It is possible to appear in.

Therefore, by screwing the screw portion 93 of the shaft portion 92 to the segment, the hanging metal 91 can be detachably attached to this segment. Further, by lowering the hanging tool 96 to fit the hollow portion 97 into the disk portion 94, extending each hydraulic jack 98 and inserting the locking pin 99 into the corresponding locking hole 95 of the hanging bracket 91, Hoist is hanging bracket 9
The segments can be hoisted via 1.

In the embodiment described above, the hanging metal 91
A locking projection may be provided in place of each locking hole 95, and a locking recess may be provided in the hydraulic jack 98 of the hanger 96 so as to be able to protrude and retract.

As shown in FIG. 12, in the segment hanging bracket 101 of the fifth embodiment, a screw portion 103 is formed at the distal end of the shaft portion 102, while the shaft portion 1 is formed at the base end portion.
A disk portion (support portion) 104 having a diameter larger than that of 02 is integrally formed, and this disk portion 104 also serves as a locking portion, and a pair of locking concave portions 105 and 106 facing the outer peripheral portion of the disk portion 104. Are formed. On the other hand, as shown in FIG. 13, the upper end of a pair of opening / closing claws 108
, And can be opened and closed by an open / close jack (not shown). The open / close claw 108 supports the lower surface of the disk portion 104 of the hanging bracket 101 and can be locked by a pair of locking recesses 105. I have. Further, the upper end of a pair of opening / closing claws 110 is rotatably supported by a support shaft 111 in the gripper box of the elector device (not shown), and can be opened and closed by an opening / closing jack 112. The opening / closing claw 110 is a disk of the hanging bracket 101. The lower surface of the portion 104 is supported and can be locked by the pair of locking recesses 106.

Accordingly, by screwing the screw portion 103 of the shaft portion 102 to the segment, the hanging fitting 101 can be detachably attached to this segment. Further, the hanging tool 107 is lowered with the opening / closing claw 108 opened, and the opening / closing claw 108 is
By closing the opening, the opening / closing claw 108
The lower surface 4 is supported and locked in each locking recess 105, so that the hoist can lift the segment via the hanging bracket 106. Then, when the hoist moves and transports the segment to the vicinity of the elector device, the elevator moves forward with the pair of opening and closing claws 110 of the elector device opened, and the opening and closing jack 112 closes the opening and closing claw 110 at a predetermined position, The opening / closing claw 110 supports the lower surface of the disk portion 104 of the hanging metal fitting 101 and is locked in each locking concave portion 106, so that the elector device is connected to the hanging metal fitting 1.
You can keep the segment through 06. In this case, by interfering the front and rear positions of the hoist support portion and the hanging tool 107, interference with the opening / closing claw 110 is prevented.

[0049]

As described above in detail in the embodiment, according to the invention, the large-diameter support portion is provided at the base end of the shaft portion embedded and fixed in the segment. Since the locking portion is formed on the outer surface of the support portion, the overall length can be reduced and the weight can be reduced.

According to the second aspect of the present invention, since the locking portion is a male screw portion formed on the outer peripheral surface of the support portion, the locking portion for locking the hanging device to the hanging metal can be easily formed. And the lifting device can easily lock the lifting hardware and lift the segment.

According to the third aspect of the present invention, since the locking portion is a female screw portion formed on the upper surface of the support portion, the locking portion can be held without changing the support portion gripped by the elector device. Can be formed, and the suspending device can easily lock the suspending fitting to lift the segment.

According to the fourth aspect of the present invention, since the locking portion is a plurality of locking holes or locking projections formed on the outer peripheral surface of the support portion, the connection between the hanging device and the hanging metal fitting is achieved. It is easy to engage and disengage, and the segment can be hoisted in a short time via the hanging fitting.

According to the fifth aspect of the present invention, the distal end portion is embedded in the segment, the large-diameter support portion is provided at the base end portion, and the locking portion is formed on the outer surface of the support portion. A hanging fixture, a segment transport device that suspends the segment by engaging the retaining portion of the suspending fixture attached to the segment, lifts the segment, and transports the segment to a predetermined position. And the erector device, which is supported by the bracket receiving part from the side and receives the segment, and assembles it to the inner wall surface of the tunnel, so that the transport device transfers the segment to the erector device without dropping it to the ground with the segment suspended. By shortening the time, it is possible to improve the operability of the segment transport operation and the construction operation.

According to the segment construction apparatus of the present invention, the locking portion is a screw portion formed on the support portion.
Since the hanging screw is provided with a rotary screw to be screwed into this screw,
The hanging tool and the hanging tool can be easily engaged and disengaged in a short time.

According to the segment construction apparatus of the present invention, the locking portion is a locking hole formed on the outer peripheral surface of the support portion, and the plurality of hooks can be engaged with and disengaged from the locking hole. Since the locking pin is provided, it is possible to easily engage and disengage the hanging tool and the hanging tool in a short time.

According to the segment transport method of the present invention, the segment is carried into the existing tunnel, and the lower end of the hanging fitting having the disk portion and the threaded portion is embedded and attached, and the hoist is mounted. The segment is lifted up and the screw is screwed into the threaded part of the hanging bracket, and the segment is lifted through the hanging bracket by raising the hanging fixture. In this state of lifting, the segment is conveyed to the vicinity of the erector device by the hoist and delivered. Stop at the position, the metal receiving part of the elector device moves forward to support the lower surface of the disk part from the side, while lifting the lifting gear while rotating the lifting gear in the reverse direction and releasing the screw with the screw part, the segment is released. Since the transfer is performed, the transfer device is transferred to the Electa unit without hanging the segment and dropping it to the ground. It is possible to improve the workability of the transport task and construction work.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a segment construction device according to a first embodiment of the present invention.

FIG. 2 is a schematic view of a segment hanging bracket according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a hoist hanger.

FIG. 4 is a front view of the elector device.

FIG. 5 is a front view of a main part of the elector device.

FIG. 6 is a sectional view taken along line VI-VI of FIG. 5;

FIG. 7 is a schematic diagram illustrating a segment delivery method.

FIG. 8 is a front view of another hoist hanger in the segment construction apparatus according to the second embodiment of the present invention.

FIG. 9 is a sectional view taken along line IX-IX of FIG. 8;

FIG. 10 is a front view of a segment hanging bracket according to a third embodiment of the present invention.

FIG. 11 is a front view of a segment hanger and a hoist hanger according to a fourth embodiment of the present invention.

FIG. 12 is a front view of a segment hanging bracket according to a fifth embodiment of the present invention.

FIG. 13 is a front view of the hoist hanger.

FIG. 14 is a sectional view taken along line XIV-XIV of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Excavator main body 12 Shield jack 14 Electa apparatus 15 Hoist (segment conveying apparatus) 17, 71, 96, 106 Hanging equipment 18, 81, 91, 101 Hanging metal fitting 21, 82, 92, 102 Shaft part 23, 83, 93, 103 Disk portion (support portion) 24 Male screw portion (locking portion) 31 Rotating shaft 33 Female screw portion 44 Revolving ring 50 Grip box 56 Hardware receiving member 59 Locking lever 85 Female screw portion (locking portion) 95 Locking hole (locking) Part) S segment

Claims (8)

[Claims] 1. A segment hanging bracket detachably mounted on a segment, comprising: a shaft portion having a distal end portion embedded and fixed in the segment; and a large-diameter support portion provided at a base end portion of the shaft portion. And a locking portion formed on an outer surface of the support portion. 2. The hanging metal fitting for a segment according to claim 1, wherein said locking portion is a male screw portion formed on an outer peripheral surface of said supporting portion. 3. The hanging metal fitting for a segment according to claim 1, wherein the locking portion is a female screw portion formed on an upper surface of the supporting portion. 4. The segment hanging bracket according to claim 1, wherein the locking portion is a plurality of locking holes or locking projections formed on an outer peripheral surface of the support portion. Hanging bracket. 5. A hanging metal fitting having a large diameter support portion provided at a base end portion with a distal end portion embedded in a segment and a locking portion formed on an outer surface of the support portion, and a hanging device attached to the segment. A segment transport device that locks the segment by lifting the segment and conveys the segment to a predetermined position; and a bracket receiving portion supports the support portion of the segment conveyed to the predetermined position from the side. An erector device for receiving the segment and assembling the segment on the inner wall surface of the tunnel. 6. The segment construction device according to claim 5, wherein the locking portion is a screw portion formed on the support portion, and the hanging member has a rotary screw portion screwed to the screw portion. A segment construction device characterized by the above-mentioned. 7. The segment construction apparatus according to claim 5, wherein the locking portion is a locking hole formed on an outer peripheral surface of the support portion, and the hanging member is disengaged from the locking hole. A segment construction device comprising a plurality of possible locking pins. 8. Bringing the segment into the existing tunnel,
The lower end of the hanging fitting having a disk portion and a threaded portion formed at the upper end with respect to the segment is embedded and attached, and the hoist hanging fixture is rotated while descending and screwed into the threaded part of the suspending fixture. The segment is lifted up by the lifting bracket by lifting the lifting bracket, the segment is conveyed by the hoist to the vicinity of the erector device in the lifting state, and stopped at the transfer position, and the bracket receiving portion of the erector device moves forward. Transferring the segment by supporting the lower surface of the disk portion from the side and lifting the lifting device while rotating the hanging member in the reverse direction to release the engagement with the screw portion. .