JPH05179898A - Segment supply device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To improve the efficiency of segment supply and enable full automation from segment supply to automatic assembly .
It The [Configuration] The present invention segments 3 constituting the tunnel wall is excavated by the shield excavation proceeds machine, sequentially from the rear of the tunnel to the tip, the transfer to segment sets elevational device provided in the shield excavation proceeds machine 4 is disposed in the bottom hole of the upper Symbol tunnel Te segment feeder 1 smell supplied to, sequentially from the rear of the tunnel to the segment sets elevational device around a conveyor 5 for transporting the segments, the shield The fixed frame 6 fixed to the excavator and the delivery frame 17 suspended from the fixed frame 6 are first located at the carry-out end 5a of the conveyor, and the segment conveyed to the carry-out end of the conveyor is with placing, which was advanced after positioning, it consists transfer means 7 for the construction to sequentially transfer to the segment sets <br/> elevation device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention sequentially transfers segments constituting a tunnel wall excavated by a shield excavator from the rear of the tunnel to the tip portion thereof and automatically installs a segment provided behind the shield excavator. The present invention relates to a segment supply device that supplies an assembly device.

[0002]

2. Description of the Related Art Conventionally, a shield excavation method using a shield excavator has been used for tunnel excavation work for subways and the like.

In this shield excavation method, as shown in FIGS. 5 and 6, a shield excavator a excavates a natural ground, and at the same time, a concrete tunnel wall b is constructed around the excavated tunnel. The concrete tunnel wall b is formed by sequentially combining a plurality of segments c formed along the curvature of the tunnel into a tubular shape. The flow of the segment c will be briefly described. First, the segment c transported from the rear of the tunnel to the tip of the tunnel by the segment carriage d is a beam e provided in the length direction of the tunnel.
The automatic segment assembly is attached to the shield excavator a, which is gripped by the vertically movable segment gripping device k provided on the segment transfer hoist f that can travel along the line, and is transported to the shield excavator a side. After being supplied to the device g, the segment automatic assembling device g sequentially assembles into a cylindrical shape. At this time,
As shown in FIG. 6, the segment supply device h transfers the segment c from the segment transfer hoist to the automatic segment assembly device g. That is,
When the segment carrying hoist f reaches the tip of the beam e, it unwinds the wire i and lowers the gripped segment c, so that the segment feeding hoist f is delivered to the delivery means j of the segment supply device h. After delivering the segment c, the delivery means j slides to the automatic segment assembly side g to supply the segment c thereto.

[0004]

However, as shown in FIG. 6, when the segment c is transferred from the segment transfer hoist f to the delivery means j of the segment supply device h, the wire i is fed out and the segment gripping device is moved. Since it was done by lowering k, shaking etc. tend to occur,
It was difficult to accurately position the segment supply device h on the delivery means j. Therefore, when the segment c is transferred to the delivery means j, the worker often has to perform centering again, which is not good in working efficiency.
It was difficult to automate the segment supply from the segment transfer hoist f to the automatic segment assembly device h.

Therefore, the present invention has been devised to effectively solve these problems, and its purpose is to achieve automation of segment supply from a segment transfer hoist to a segment automatic assembly device, and A segment supply device with improved work efficiency is provided.

[0006]

In order to achieve the above object, the present invention transfers the segments constituting a tunnel wall excavated by a shield excavator in sequence from the rear of the tunnel to the tip thereof. In the segment supply device for supplying to the segment automatic assembly device provided in the excavator, the unloading end is arranged at the bottom of the tunnel so as to be located near the segment automatic assembly device,
A conveyor for transferring the segments sequentially from the rear of the tunnel to the vicinity of the segment automatic assembly device,
A fixed frame that is fixed to the segment automatic assembly robot, and a delivery frame that is provided on the fixed frame and is located at the carry-out end of the conveyor, and that carries the transported segment to the carry-out end of the conveyor. And a delivery means for positioning and sequentially delivering it to the automatic segment assembly apparatus.

[0007]

According to the present invention, the segments constituting the tunnel wall are conveyed from the rear of the tunnel to the tip portion by the conveyor, and are received from the delivery end by the delivery means, and then the segments are delivered by the delivery means. Since the segments are sequentially delivered to the automatic assembly device, the segments are quickly supplied to the segment automatic assembly device, and the work efficiency is improved. Further, since the delivery means is provided with the segment centering function, the delivery of the segment to the automatic segment assembly apparatus is reliably performed, and the automation of the segment supply is achieved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a side view showing an embodiment of the present invention, and FIG. 2 is a plan view thereof. FIG. 3 is a front view thereof.

The segment supply device 1 of the present invention transfers the concrete segments 3 constituting the tunnel wall 2 excavated by a shield excavator (not shown) in sequence from the rear of the tunnel to the tip portion thereof, and the shield is provided. It is to be supplied to the automatic segment assembly machine 4 provided at the rear of the excavator, and as shown in the figure, it is arranged at the bottom of the tunnel so that the carry-out end 5a is located near the automatic segment assembly machine 4. And a fixed frame 6 fixed to the automatic segment assembly device 4, and a delivery means 7 provided on the fixed frame 6.

As shown in FIGS. 1 to 3, the conveyer 5 is a conveyer for conveying the segment 3 from the carry-in end 5b side to the carry-out end 5a side at the central portion of a long conveyor frame 8. A path 9 is formed, and this transport path 9
Is provided with an endless belt 11 driven by a conveyance motor 10. A plurality of traveling wheels 13 driven by a traveling motor 12 provided inside the conveyor frame 8 are provided along the length of the conveyor frame 8 on both sides of the conveyor path 9 below the conveyor frame 8. And
It can be appropriately moved according to the degree of construction of the tunnel wall 2. On the other hand, on the upper surface of the conveyor frame 8 and on both sides of the transport path 9, a plurality of transport rollers 14 are independently rotatably provided at appropriate intervals along the length direction. The both ends of the lower surface of the curved segment 3 are supported. Further, the entrainment member 1 is provided on the outer peripheral surface of the belt 11 at a predetermined interval.
5 is projected, the driving force of the belt 11 is transmitted to the segment 3 supported by the conveying roller 14, and the segment 3 is pushed and conveyed to the carry-out end 5a side.

Delivery means 7 provided on the fixed frame 6
As shown in FIGS. 1 and 2, the support frame 16 fixed horizontally to the fixed frame 6 and the support frame 16
The delivery frame 17 provided in the lower part of the
And a delivery frame moving means 18 for connecting and supporting the support frame 16 and the delivery frame 17 and for moving the delivery frame 17 in parallel with the support frame 16 arbitrarily.

The delivery frame 17 is the conveyor 5
Is formed in a U-shape in a plane so as to surround the carry-out end 5a of the conveyor 5 and has a tip end portion for receiving and mounting the segment 3 carried out from the carry-out end 5a of the conveyor 5.
9 is formed. As shown in FIG. 2, the mounting portion 19 is provided with front and rear positioning stoppers 20, centering rollers 21, segment pulling jacks 22, and left and right centering devices 23, one pair each, from the carry-out end 5a of the conveyor 5. When the delivered segment 3 is received and placed, centering is automatically performed so that the segment 3 fits in a predetermined position.

The delivery frame moving means 18 is an elevating means 25 for raising and lowering the delivery frame 17, and the delivery frame 1.
7 is configured to horizontally extend along the support frame 16 in the direction of the automatic segment assembly apparatus 4 described above. The elevating means 25 is provided with four cylinders 25a which are erected on both sides of the delivery frame 17, and a lower end portion of the cylinder 25a which can be inserted into the cylinder 25a and an upper end portion of which is supported by the support frame 16.
The transfer frame 17 is controlled to be movable up and down with respect to the support frame 16 by hydraulic pressure. Also, the lifting means 25
A roller 27 that can travel along the support frame 16 is provided at the upper end of each piston rod 25b, and the delivery frame 17 is thereby movable. On the other hand, the expanding / contracting means 26 is also constituted by a hydraulic cylinder like the elevating means 25, and controls the hydraulic pressure to horizontally move the delivery frame 17 along the support frame 16 in the direction of the automatic segment assembly apparatus. Is becoming Further, the rollers 27 of the pair of hydraulic cylinders located in front of the delivery frame 17 are connected to the support frame 1.
6, the rollers 27 of the pair of hydraulic cylinders located at the rear of the delivery frame 17 are provided on the support frame 1 made of H channel steel.
It is designed to run inside 6. That is, as shown in the figure, when the heavy-loading concrete segment 3 is placed on the placing portion 19 of the delivery frame 17,
A force acts on the pair of hydraulic cylinders located in front of the delivery frame 17 in the extending direction, and a force acts on the pair of hydraulic cylinders located behind the delivery frame 17 in the contracting direction. This is because the rollers 27 of the pair of hydraulic cylinders located at are prevented from coming off the support frame 16.

Next, the operation of this embodiment will be described.

First, as shown in FIG. 2, a conveyor 5 constituting one of the segment supply devices 1 is provided with a belt 11 for driving the segment 3 conveyed from the segment conveying hoist (not shown). The entrainment member 15 causes the carrying-in end 5b to pass through the carrying path 9 and carries it to the carrying-out end 5a. When the segment 3 reaches the carry-out end 5a side, the segment 3 is sent to the placing portion 19 of the delivery frame 17 of the delivery means 7 located at the carry-out end 5a. Next, the delivery means 7 in which the segment 3 is placed on the placing portion 19 of the delivery frame 17 drives the elevating means 25 of the delivery frame moving means 18 to raise the delivery frame 17 and raise the segment 3 to a predetermined height. become.
At this time, the segment 3 includes the front-rear positioning stopper 20, the centering roller 21, the segment pulling jack 22, and the left-right centering device 23 provided on the mounting portion 19.
Thus, the front, rear, left and right positions are automatically centered so as to become predetermined positions. That is, the positioning in the front-rear direction is achieved by the stopper 20 and the segment pulling jack 22, and the positioning in the left-right direction is achieved by the centering roller 21 and the left-right centering device 23. Next, when the expansion / contraction means 26 of the delivery frame moving means 18 is extended in this state, the roller 27 connected to the elevating means 25 rolls along the support frame 16 toward the automatic segment assembly apparatus 4 side, and the elevating means 25 and The delivery frame 17 connected and supported to this is horizontally moved to the automatic segment assembly device 4 side, and the segment 3 mounted on the mounting portion 19 thereof is positioned directly below the grip portion 24 of the automatic segment assembly device 4. Then, the automatic segment assembling apparatus 4 delivers it to the grip section 24. After that, the segment supply device 1 moves in the opposite manner to the above, returns to the original state again, and thereafter, the same operation is repeated in sequence to sequentially supply the segments 3 to the automatic segment assembly device 4. ..

It should be noted that the conveyor 5 of the segment supply device 1 is not always driven so as to convey the segment 3 to the unloading end 5a side, but must be automatically operated intermittently in conjunction with the delivery means 7. Needless to say. That is, when the delivery frame 17 of the delivery means 7 is positioned on the unloading end 5a side of the conveyor 5 and is in a standby state, it is sensed and driven, and the next segment 3 stopped on the transport path 9 is delivered to the delivery frame. It is supposed to be handed over to 17. Also,
According to the construction of the tunnel wall 2, the conveyor 5 is adapted to be appropriately advanced to a predetermined position by a self-propelled means, but the conveyor 5 is previously fixed to a fixed frame 6 or a segment automatic device which constitutes one of the segment supply devices 1. Assembly device 4
If it is configured to be pulled by connecting to
The self-propelled means is not required, the configuration is simple, and the setting is easy.

[0018]

In summary, according to the present invention, since the centering of the segment can be easily achieved when the segment is transferred from the conveyor to the transfer means, the automation of the segment supply to the automatic segment assembly apparatus is achieved, and the work is performed. It has an excellent effect of improving efficiency.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

FIG. 3 is a front view showing an embodiment of the present invention.

FIG. 4 is an explanatory diagram showing the operation of the present invention.

FIG. 5 is an explanatory view showing a flow of a conventional segment by the shield excavation method.

FIG. 6 is a schematic view showing a conventional segment supply device.

[Explanation of symbols]

 1 segment supply device 2 tunnel wall 3 segment 4 segment automatic assembly device 5 conveyor 5a carry-out end 6 fixed frame 7 delivery means 17 delivery frame

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[Procedure amendment]

[Submission date] May 20, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title of the invention Segment supply device

[Claims]

Detailed Description of the Invention

[0001]

The segments constituting the excavated tunnel walls by the present invention is shielded excavation proceeds machine BACKGROUND OF THE sequentially from the rear of the tunnel to the tip, the transfer to the rear of the shield <br/> excavation proceeds machine it relates segment supply device for supplying the segment sets elevational device provided.

[0002]

Conventionally, shield construction method using a shield excavation advance machine to tunnel excavation, such as the subway have been used.

[0003] The shield construction method, as shown in FIGS. 5 and 6, at the same time as drilling progresses the natural ground by the shield excavation proceeds machine a, which build a concrete tunnel wall b to a tunnel surrounding the excavation The concrete tunnel wall b is formed by sequentially combining a plurality of segments c formed along the inner circumference of the tunnel into a tubular shape. The flow of the segment c will be briefly described. First, the segment c conveyed from the rear of the tunnel to the tip of the tunnel by the segment carriage d is free to travel along the beam e provided in the length direction of the tunnel. is gripped by a vertically movable segment gripping device k provided in segments carrying hoist f, it is conveyed to the shield excavation proceeds station a side segment pair which is attached to the rear of the shield excavation proceeds <br/> station a after being fed to the standing device g, adapted to be assembled sequentially tubular this segment assembly elevational device g. Among its, segment
As a segment supply for automatic assembly ,
As shown in FIG. 6, the segment supply device h transfers the segment c from the segment transfer hoist to the automatic segment assembly device g. That is,
When the segment carrying hoist f reaches the tip of the beam e, it pays out the wire i and lowers the segment c that is being gripped .
After delivering the segment c to the delivery means j of the segment supply device h provided at the rear , the delivery means j
Slides toward the automatic segment assembly device g to supply the segment c thereto.

[0004]

THE INVENTION Problems to be Solved] However, as shown in FIG. 6, the transfer of the segment c of According to this person expression from the segment carrying hoist f to transfer means j segments feeder h, the segment 1 copy scan Do once every time
Segment Do Razz rearward advance shield machine if Kere
Efficiently automatically stocking a large number of stocks
The mechanism was unsuitable for the supply method.

[0005] The present invention has been devised in order to solve these problems effectively, together with its objects automation segment supplied from the segment carrying the hoist to segment pairs elevation device is achieved The present invention provides a segment supply device with improved work efficiency.

[0006]

To achieve the above object of the Invention The present invention is a segment constituting the excavated tunnel walls by the shield excavation proceeds machine, sequentially from the rear of the tunnel to the tip, and transferred the disposed downhole above Symbol tunnel keep <br/> the segment supply device for supplying the segment sets elevational device provided in the shield excavation proceeds machine, from the rear of the tunnel to the segment sets elevational device near sequentially, a conveyor for transporting the segments, a fixed frame fixed to the shield machine <br/>, with Kaka設of <br/> is in the stationary frame, the transfer frame is the beginning of the conveyor Located at the carry-out end, puts the segment conveyed to the carry-out end of the conveyor, and after positioning it, the front
Proceeds, and it is made of a transfer means configured to sequentially transfer to the segment sets elevational device.

[0007]

According to the present invention, the segment constituting the tunnel wall is conveyed from the rear of the tunnel to the tip portion by the conveyor, is received from the carrying-out end by the delivering means, and is then delivered by the delivering means. since that will be sequentially transfer the <br/> emissions Efforts elevational device, towards the other
The number of times re received compared modulo less, the supply of the segment to the cell Gumen Efforts elevation device is performed quickly, thereby improving the working efficiency. Further, since the centering function of the segment is provided in the transfer means, when the segment automated assembly device, delivery segments automatically be ensured, automated from the segment supply to assembly is achieved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a side view showing an embodiment of the present invention, and FIG. 2 is a plan view thereof. FIG. 3 is a front view thereof.

[0010] Segment supply apparatus 1 of the present invention is a concrete segments 3 constituting the tunnel wall 2 drilled by the shield <br/> excavation proceeds machine (not shown), sequentially from the rear of the tunnel to the tip, transfer to and to supply the segment sets elevational device 4 provided at the rear of the shield excavation proceeds machine, as shown, unloaded end 5a is the segment
A conveyor 5 disposed downhole of the tunnel so as to be positioned behind the set elevation device 4, the fixed frame 6 fixed to the shield machine 1, Kaka設 to the fixed frame 6
It is composed of the delivery means 7 that has been delivered.

As shown in FIGS. 1 to 3, the conveyer 5 is a conveyer for conveying the segment 3 from the carry-in end 5b side to the carry-out end 5a side at the central portion of a long conveyor frame 8. A path 9 is formed, and this transport path 9
Is provided with an endless chain 11 driven by, for example, a carry motor 10. Also, this conveyor frame 8
A lower on both sides of the conveying path 9, run by traction
A plurality of running wheels 13 are provided along the length of the running wheels 13 so that they can move simultaneously with the shield machine . On the other hand, on the upper surface of the conveyor frame 8 and on both sides of the transport path 9, a plurality of transport rollers 14 are independently rotatably provided at appropriate intervals along the length direction. , Both sides of the lower surface (outer surface) of the curved segment 3 are supported. Also,
Entrainment members 15 are provided on the outer peripheral surface of the chain 11 at predetermined intervals to project the driving force of the chain 11.
It is transmitted to the segment 3 supported by the transport roller 14 and is pushed and transported to the unloading end 5a side.

Delivery means 7 provided on the fixed frame 6
As shown in FIGS. 1 and 2, the support frame 16 fixed horizontally to the fixed frame 6 and the support frame 16
The delivery frame 17 provided in the lower part of the
And a delivery frame moving means 18 for connecting and supporting the support frame 16 and the delivery frame 17 and for moving the delivery frame 17 in parallel with the support frame 16 arbitrarily.

The delivery frame 17 is the conveyor 5
Is formed in a U-shape in a plane so as to surround the carry-out end 5a of the conveyor 5 and has a tip end portion for receiving and mounting the segment 3 carried out from the carry-out end 5a of the conveyor 5.
9 is formed. Further, as is shown in FIG. 2 to the mounting portion 19, longitudinal positioning stopper 20, the centering roller 21, the segment drawn jack 22, left and right centering device 23 is kicked, respectively it set, unloaded end 5a of the conveyor 5 When receiving and mounting the segment 3 carried out from, the centering is automatically performed so that the segment 3 fits in a predetermined position.

The delivery frame moving means 18 is an elevating means 25 for raising and lowering the delivery frame 17, and the delivery frame 1.
7 along the support frame 16 and a stretchable section 26 for horizontally moving the said segments set elevational device 4 directions. The elevating means 25 includes four cylinders 25 a erected on both sides of the delivery frame 17, and the cylinders 25 a.
The piston rod 25b has a lower end that is insertable into a and has an upper end supported by the support frame 16.
The transfer frame 17 is controlled to be movable up and down with respect to the support frame 16 by hydraulic pressure. Further, a roller 27 that can travel along the support frame 16 is provided at the upper end portion of each piston rod 25b of the elevating means 25, and the delivery frame 17 can be moved by this. On the other hand, expansion means 26, this lifting means 25 is constituted by a similarly hydraulic cylinder, so as to move horizontally in the direction of the segment sets elevational device along a transfer frame 17 by controlling the oil pressure to the support frame 16 It has become. Moreover, whereas the so roller 27 of a pair of hydraulic cylinders located in front of as an example to transfer frame 17 travels a top side of the support frame 16,
The rollers 27 ' of the pair of hydraulic cylinders located behind the delivery frame 17 run inside the support frame 16 made of H channel steel. That is, as shown in the drawing, the mounting portion 19 of the delivery frame 17
When the concrete-made segment 3 having a large load is placed on the pair of hydraulic cylinders, a force acts on the pair of hydraulic cylinders located in front of the delivery frame 17 in an extending direction, and the pair of hydraulic cylinders located behind the delivery frame 17 receives a force. This is because the force acts in the contracting direction so that the rollers 27 ′ of the pair of hydraulic cylinders located behind the delivery frame 17 are prevented from coming off the support frame 16.

Next, the operation of this embodiment will be described.

First, as shown in FIG. 2, the conveyor 5 which constitutes one of the segment supply devices 1 has a chain 11 for driving the segment 3 conveyed from the above-mentioned segment conveying hoist (not shown). The carry-in member 15 allows the carry-in end 5b to pass through the carrying path 9 and the carry-out end 5a.
To the side. When the segment 3 reaches the carry-out end 5a side, the segment 3 is sent to the placing portion 19 of the delivery frame 17 of the delivery means 7 located at the carry-out end 5a. Next, the delivery means 7 in which the segment 3 is placed on the placement portion 19 of the delivery frame 17 drives the elevating means 25 of the delivery frame moving means 18 to raise the delivery frame 17 and raise the segment 3 to a predetermined height. become. At this time, the segment 3 is automatically moved by the front-rear positioning stopper 20, the centering roller 21, the segment pulling jack 22, and the left-right centering device 23 provided on the mounting portion 19 so that the front-rear and left-right positions become predetermined positions. Will be centered. That is, the positioning in the front-rear direction is achieved by the stopper 20 and the segment pulling jack 22, and the positioning in the left-right direction is achieved by the centering roller 21 and the left-right centering device 23. Next, in this state, the expansion / contraction means 26 of the delivery frame moving means 18
When the extension it long, lifting means roller 27 which is connected to the 25 rolling segment assembly elevational device 4 side along the support frame 16, segments the transfer frame 17 to the lifting means 25 and which is connected to and supported by horizontally moving the set elevation device 4, it is positioned a segment 3 are placed on the placing portion 19 beneath the grip portion 24 of the cell <br/> Gumen Efforts elevational device 4, Se <br / > comprising receiving handing in to the grip portion 24 of the Gumen Efforts elevation device 4. Then, this segment supply device 1 and described above with the opposite movement, returns to its original state, to supply to the subsequent turn in the same operation sequence segment sets elevational device segments 3 Repeat 4 Become.

It should be noted that the conveyor 5 of the segment supply device 1 is not always driven so as to convey the segment 3 to the unloading end 5a side, but must be automatically operated intermittently in conjunction with the delivery means 7. Needless to say. That is, when the delivery frame 17 of the delivery means 7 is positioned on the unloading end 5a side of the conveyor 5 and is in a standby state, it is sensed and driven, and the next segment 3 stopped on the transport path 9 is delivered to the delivery frame. It is supposed to be handed over to 17. Also,
According to the shield excavation , this conveyor 5 is a shield excavator.
That has become a way to move forward, driven by.

[0018]

In summary, according to the present invention, the efficiency in transferring the segment from the conveyor to the transfer means is improved.
And also because the centering segments are readily achieved, is achieved automation segment supply to segment sets elevational device, it has an excellent effect that work efficiency is improved.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

FIG. 3 is a front view showing an embodiment of the present invention.

FIG. 4 is an explanatory diagram showing the operation of the present invention.

FIG. 5 is an explanatory view showing a flow of a conventional segment by the shield excavation method.

FIG. 6 is a schematic view showing a conventional segment supply device.

[EXPLANATION OF SYMBOLS] 1 segment feeder 2 tunnel wall 3 segments 4 segments set elevation device 5 conveyor 5a unloaded end 6 fixed frame 7 transfer means 17 transfer a frame

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

[Figure 6]

Claims (1)

[Claims] 1. A segment supply system in which segments constituting a tunnel wall excavated by a shield excavator are sequentially transferred from a rear portion of the tunnel to a tip end portion thereof and are supplied to an automatic segment assembly device provided in the shield excavator. In the device, the conveyor is provided at the bottom of the tunnel so that its carry-out end is located in the vicinity of the segment automatic assembly device, and a conveyor for transferring the segments sequentially from the rear of the tunnel to the vicinity of the segment automatic assembly device. And a fixed frame fixed to the automatic segment assembly device, and a delivery frame provided on the fixed frame, the delivery frame being located at the carry-out end of the conveyor, and the segment being conveyed being carried at the carry-out end of the conveyor. And to deliver it to the segment automatic assembly device in sequence by positioning it. And a segment supply device.