JP2018053456A - Device for stocking of and automatically conveying segments - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stock segments in the vicinity of a shield machine and automatically conveys the segments toward the shield machine according to a progress situation of a construction.SOLUTION: This device M2 is pulled by the shield machine M1 in a tunnel pit and follows a progress situation of an excavation proceeding of the shield machine M1, sequentially loads a plurality of segments S on each roller 3 from a rear side of the bogie 2, carries them to the front side of a bogie 2, stocks them on the bogie 2 by means of driving of each roller 3, drives each roller 3 according to a progress situation of a construction and automatically conveys each segment S just behind the shield machine M1.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a segment stock / automatic transfer apparatus that stocks a segment in the vicinity of a shield machine and automatically conveys the segment toward the shield machine according to a construction situation.

In tunnel construction using a shield machine, a natural ground is excavated by a cutter device provided at the front of the shield machine, and a plurality of segments are formed along the inner wall of the tunnel excavated by an erector provided at the rear of the shield machine. Since the tunnel is constructed by sequentially assembling it into a ring shape, this work also requires the work of transporting the segments from the shaft side to the face side.
Conventionally, a rail is laid in the tunnel mine and a plurality of transport carts and towing vehicles are connected on the rail, and segments are loaded on each transport cart, and each transport cart travels on the rail. It is transported (see Patent Document 1). In transporting this segment, the stock location of the segment is usually away from the shield machine, such as on the ground or near the start shaft, and the necessary amount will be transported each time as the shield machine is drilling the ground. . The segment transported immediately after the shield machine is handed over to the shield machine (elector) by an operator using an electric hoist or the like.

  The applicant of the present application has previously proposed a segment transport assembly system suitable for transporting and assembling segments according to Patent Document 2, and a transport cart (transport cart) is also used in this system.

JP 11-336492 A JP 2002-47898 A

However, there are the following problems in the transporting operation of the segments using the conventional transport cart.
(1) A space dedicated to the segment stock is required in the tunnel mine, and when the dedicated space is secured, the work yard space is being pressed together with the carry-in space from the outside and the sealing space for the segment. For this reason, it is difficult to make a large dedicated space, and the segment stock amount is insufficient. Also, behind the shield machine, there will be a subsequent carriage equipped with various equipment such as equipment for driving and driving the shield machine, backfill equipment, additive equipment, etc. It is difficult to secure a dedicated space near the shield machine.
(2) In the tunnel tunnel, there are few segment stock locations and the segment stock quantity is insufficient. Therefore, excavation of the shield machine cannot be performed during the time when the segment cannot be transported, such as noise control at night. If trouble occurs on the route and transportation of the segment is stopped, the shield machine cannot advance excavation, and the shield machine excavation cycle is likely to be limited to the segment conveyance cycle.
(3) As the shield machine excavates, the distance from the wellhead to the shield machine becomes longer, and in the transport type in which the transport carriage travels back and forth on the rail and carries the segment, it takes a lot of time to transport the segment. The necessary quantity of segments cannot be supplied at the timing required for the progress of the shield machine excavation.
(4) It is necessary to secure personnel for the segment stock locations and transport cart operation. It is a work to handle heavy objects, and it is desirable to be mechanized and automated for safety.

  The present invention solves such a conventional problem, and secures a stock location of a plurality of segments in the tunnel mine in the vicinity of the shield machine, and from this stock location, the efficiency is improved according to the progress of excavation of the shield machine. It is an object of the present invention to provide a segment stock and automatic transfer device that can automatically transfer a required number of segments toward a shield machine.

In order to achieve the above object, the segment stock and automatic transfer apparatus of the present invention
A carriage connected to a shield machine in a tunnel mine, extending rearward from immediately after the shield machine, and capable of loading segments for a plurality of rings;
A plurality of rollers arranged in parallel in the front-rear direction so that each segment can be supported on the carriage, and a driving device that rotationally drives each roller;
With
Following the excavation progress of the shield machine being pulled by the shield machine in the tunnel mine,
A plurality of segments are sequentially loaded from the rear side of the carriage onto the carriage via the rollers, and are sent to the front side of the carriage by driving the rollers and stocked on the carriage, depending on the construction situation. Each of the rollers is driven to automatically convey each segment immediately after the shield machine.
This is the gist.
In addition, this apparatus preferably has the following configuration in each part.
(1) The carriage is configured by connecting a plurality of divided carriages.
(2) The carriage has at least a two-stage structure, with a roller and a driving device installed at the lower stage, and ancillary equipment for a shield machine installed at the upper stage.
(3) At least the rear part of the carriage is formed in a gate shape so that the segment transportation vehicle can be moved forwards and backwards, and the swivel lifter is capable of transferring the segment from the transportation vehicle onto a roller on the rear side of the carriage above the rear part of the carriage. Is also provided.
(4) A traverse type hoisting machine is also provided between the shield machine and the carriage so that the segment sent to the front side of the carriage can be conveyed toward the shield machine.
(5) The plurality of rollers are disposed so as to be supportable with the segments projecting downward and the longitudinal direction of the segments facing the tunnel width direction.

  According to the segment stock / automatic transfer device of the present invention, a plurality of segments are sequentially loaded on the respective rollers from the rear side of the carriage by being pulled by the shield machine in the tunnel pit and following the excavation progress of the shield machine. As a result of driving, the feed is sent to the front side of the carriage, stocked on the carriage, and according to the construction situation, each roller is driven and each segment is automatically conveyed immediately after the shield machine. It is possible to secure a stock location for multiple segments close to the machine, and from this stock location, it is possible to automatically transport the required number of segments toward the shield machine efficiently as the shield machine progresses. There is an exceptional effect unique to the present invention.

Side surface sectional drawing which shows the whole structure of the segment stock and automatic conveyance apparatus by one Embodiment of this invention with a shield machine Side view showing the overall configuration of the device Sectional view showing the configuration of the apparatus viewed from the front side thereof ((1) is the configuration of divided carriage NO.1, (2) is the configuration of divided carriage NO.2, and (3) is the divided carriage NO.1). 3, (4) is the configuration of the divided carriage No. 4, (5) is the configuration of the divided carriage No. 5, (6) is the configuration of the divided carriage No. 6, and (7) is the configuration of the divided carriage No. 7. Each configuration is shown.) The top view which shows the structure of the lower stage of the trolley | bogie of the apparatus The top view which shows the structure of the upper stage (middle stage) of the trolley | bogie of the apparatus

Next, embodiments for carrying out the present invention will be described with reference to the drawings.
1 and 2 show the overall configuration of the segment stock / automatic transfer apparatus.
As shown in FIG. 1, this segment stock / automatic transfer device M2 (which may be simply referred to as “device M2” in the following description) is connected to the shield machine M1 in the tunnel tunnel, and immediately behind the shield machine M1. A carriage 2 that extends and can load segments S for a plurality of rings, a plurality of rollers 3 that are arranged in parallel in the front-rear direction so that each segment S can be supported on the carriage 2, and a drive that rotationally drives each roller 3 The apparatus 4 is provided.

The carriage 2 is pulled by the shield machine M1 and travels on a pair of rails 2R laid in the tunnel mine behind the shield machine M1, and includes a plurality of rail traveling wheels 20 in the lower part.
The carriage 2 is configured by connecting a plurality of divided carriages. In this case, the carriage 2 has seven divided carriages NO. 1-NO. 7 and the divided carriages are connected by a cylindrical or ring-shaped connecting portion 200 and a connecting pin 201 inserted through the connecting portion 200.

  The carriage 2 also has at least a two-stage structure, the lower stage is formed so that the roller 3 and the driving device 4 can be installed, and the upper stage (rather than the lower stage) is formed so that the incidental equipment of the shield machine M1 can be mounted. At least the rear portion is formed in a gate shape so that the transport vehicle (multipurpose transport vehicle) C of the segment S can advance and retreat.

  In the case of this carriage 2, each divided carriage NO. 1-NO. 7 is composed of a plurality of beam materials (steel frames), pillar materials (steel frames), plate materials (steel plates), etc. in a three-stage structure. Between the lower stage 2D and the middle stage 2C is a segment conveyance path SS and is supported by the lower stage 2D with rollers. Various equipment installation sections 22 are respectively provided in the section 21 and the middle stage 2C, and the upper stage 2U is a rooftop.

  In this case, the first divided carriage NO. 1st to 3rd divided cart NO. As shown in FIGS. 3 (1), (2), and (3), each divided carriage up to 3 is assembled in a box shape (square tube shape) between the lower stage 2D and the middle stage 2C. The transport path SS is a divided carriage NO. No. 1 and divided carriage NO. In each of the divided trucks up to 3, a rectangular shape with a cross section is defined between the lower stage 2D and the middle stage 2C, the segment S is convex downward, and the longitudinal direction of the segment S is the tunnel width direction (the carriage 2 width direction) It is formed so that it can be conveyed toward 4th and 5th car from the front 4, NO. As shown in FIGS. 3 (4) and 3 (5), the space between the lower stage 2D and the middle stage 2C is assembled in a gate shape, and the segment transport path SS is divided into each divided carriage NO. 4, NO. 5 is formed in a rectangular shape having a horizontally long cross section between the lower stage 2D and the middle stage 2U, and is formed so as to be able to convey the segment S in a convex state downward and the longitudinal direction of the segment S in the tunnel width direction. The lower part of the segment transport path SS is opened as the travel path CD of the transport vehicle.

  Then, as shown in FIG. No. 1 and divided carriage NO. In each divided carriage up to 5, it is formed in the lower stage 2D. In this case, the split cart NO. No. 1 and divided carriage NO. Each of the divided carriages up to 3 is assembled in a box shape between the lower stage 2D and the middle stage 2C, and the lower stage 2D is bridged between the beam member 210 assembled in a rectangular shape and the beam members 211 on both left and right sides. The beam material 212. In this lower stage 2D, a plurality of beam members 212 spanned between the beam members 211 on both the left and right sides are the rail support portions 21, and each roller 3 is placed at a predetermined position on the inner side from the left and right beam members 211 in each beam member 212. Supported and fixed. Split cart NO. 4 is assembled in a gate shape between the lower stage 2D and the middle stage 2C. The lower stage 2D includes a beam member 213 assembled in a U-shape with the rear part opened, and beam members on both the left and right sides of the front side of the beam member 213. A plurality of beam members 215 spanned between 214, and a pair of support members projecting from the beam members 214 on the right and left sides of the beam member 215 inward and facing each other to a predetermined length 216. In this lower stage 2D, a plurality of beam members 215 spanned between the beam members 214 on both the left and right sides and the support members 216 protruding from the beam members 214 on the left and right sides are rail support portions 21, and each beam member 215, In each support member 216, the roller 3 is supported and fixed at a predetermined position on the inner side from the left and right beam members 214. Split cart NO. 5 is assembled in a gate shape between the lower stage 2D and the middle stage 2C. The lower stage 2D has a pair of left and right beam members 217 whose front and rear portions are opened, and a predetermined length from the beam members 217 toward the inside. The pair of support members 218 project opposite to each other. In the lower stage 2D, the support members 218 protruding from the left and right beam members 217 are the rail support portions 21, and the rollers 3 are supported and fixed at predetermined positions inside the left and right beam members 217 in each support member 218. The In this case, each of the support members 216 and 218 protrudes to a predetermined position as the support position of the roller 3, and this position (the tip of each support member 216 and 218) supports the roller 3 of the entire roller support portion 21. Position. As shown in FIG. 3, each roller 3 (each roller unit 3 </ b> U) has a tunnel width on the roller support portion 21 at the support position of the roller 3, with the segment S protruding downward and in the longitudinal direction of the segment S. The whole is fixedly installed obliquely (in a substantially C shape when viewed from the front side of the device M2) so as to be supported in the direction. The wheels 20 of the carriage 2 are attached immediately below the support position of the roller 3. And division cart NO. 4,-Divided cart NO. 5, a traveling path CD of the transport vehicle is secured between the support members 216 facing each other and 218.

  In the case of this carriage 2, as shown in FIGS. 3 (6) and (7), the sixth and seventh divided carriage NO. 6, NO. 7 is assembled in a gate shape between the lower stage 2D and the middle stage 2C, and each divided carriage NO. 4, NO. 5, a traveling vehicle traveling path CD communicating with the traveling vehicle traveling path CD formed in 5 is formed, and various facility installation portions 22 are provided on both sides thereof.

In this way, the divided carriage NO. No. 1 and divided carriage NO. A roller support portion 21 is provided in the lower stage 2D of each of the divided carriages up to 5, and a plurality of rollers 3 (roller conveyors) are projected downward on the segment S as shown in FIG. In addition, the segments S are arranged so that the longitudinal direction of the segments S can be supported in the tunnel width direction, and each of the segments S is operatively connected to the driving device 4.
In this case, the plurality of rollers 3 (roller conveyors) are constituted by a plurality of sets of roller units 3U together with the drive motor 4. Each roller unit 3U includes a plurality of (herein, three) rollers 3 that are rotatably supported by the support plate 31 in a horizontal row, and a driving device that is operatively connected to these rollers 3 via a power transmission mechanism 32. 4. Here, the support plate 31 is made of a steel plate. The roller 3 is formed by winding a rubber ring around a wheel made of steel. The drive device 4 employs an electric motor with a speed reducer, and a sprocket is attached to the rotating shaft of the electric motor. The power transmission mechanism 32 includes three sprockets arranged coaxially with each roller 3, a roller chain wound around these sprockets and a sprocket of the rotating shaft of the electric motor, a tensioner, and the like. In this apparatus M2, a heavy object up to 25t can be supported and transported by a total of four roller units 3U (total of six wheels 3) on both sides and two sets on one side.
Such a roller unit 3U is provided with a divided carriage NO. No. 1 and divided carriage NO. One row in the front-rear direction, that is, two rows are fixedly installed at predetermined positions of the rail support portions 21 of the divided carriages up to five. In addition, a segment detection sensor is installed at a predetermined position along the inner side of the row of these roller units 3U. In this case, a limit switch is employed as the segment detection sensor, and the limit switch is arranged at regular intervals in consideration of the width dimension of the segment S between the front and rear ends of the segment transport path SS and the front and rear ends. Is done. Each electric motor is connected to a power source and driven based on control of a control panel (not shown). In the case of this apparatus M2, the segments S for three rings including the piled segments S are stacked (stocked) on these rollers 3 (full length), and these segments S serve as the rollers 3 for each roller unit 3U. When the segment S comes into contact with the limit switch, the driving of the roller unit 3U at the position of the limit switch is stopped and the forward movement of each segment S is stopped.
Each roller 3 can be rotated in the reverse direction (rotated in the backward direction), and these segments S can be moved backward by the backward rotation of the roller 3 for each roller unit 3U. In this apparatus M2, when a segment different from the segment to be sent is stocked or when a segment different from the stocked segment is sent, or when the roller 3 is repaired due to a failure of the roller 3, the segment on the carriage 2 is used. When S needs to be removed, the segment S is moved backward on the carriage 2.

Further, as shown in FIG. 1, a swivel hoist (swirl hoist) L1 is also provided above the rear part of the carriage 2 so that the segment S can be loaded onto the roller 3 on the rear part side of the carriage 2 from the transport vehicle C. . In this case, the swivel hoist L1 is divided into the divided carriage NO. 5 is attached to the lower part of the middle stage 2C.
Further, a traverse type hoisting machine (a traverse hoist) can be transported between the bogie 2 and the shield machine M1 so that the segment S sent to the front side of the bogie 2 can be transported toward the shield machine M1 (an elector). ) L2 is also provided. In this case, the traversing type hoisting machine L2 has a traversing rail r that is divided by a divided carriage NO. 1 is extended from the rooftop toward the shield machine M1, is spanned between the rooftop and the shield machine M1, and is suspended on the traverse rail r so as to traverse.
Further, as shown in FIG. 1-No. Two passages R1 and R2 are provided on both the left and right sides of the middle stage 2C of FIG. 7 so as to protrude on both sides, and, as shown in FIGS. 1 and 2, between the carriage 2 and the shield machine M1. Two hollow walkways R3 and R4 are provided together. In this case, one of the two passages R1 and R2 (R1) is a safety passage, and the other (R2) is a work passage. Of the two hollow walkways R3 and R4, one (R3) is the upper hollow walkway, and the divided carriage NO. 1 is extended from the roof toward the shield machine M1 and spanned between the roof and the shield machine M1, and the other (R4) is a middle hollow corridor. 1 middle stage 2C, in this case, is extended from the passages R1 and R2 on both the left and right sides toward the shield machine, and spans between the middle stage 2C and the shield machine M1.

The segment stock / automatic transfer apparatus M2 has such a configuration, and is connected via a traction beam B and a traction wire W immediately after the shield machine M1, as shown in FIG. In this case, the traction beam B and the traction wire W are respectively divided carriage NO. 1 extends from the middle stage 2C toward the shield machine M1 and is installed between the middle stage 2C and the shield machine M1.
Then, various equipment and equipment of the incidental equipment of the shield machine M1, such as fluid transportation equipment, are installed in an appropriate layout in the various equipment installation section 22 of the middle stage 2C. For example, divided carriage NO. No. 1 equipment installation section 22 includes a back-filling injection facility, a vacuum unit, a small-diameter piping hose drum, a fresh water tank, and other divided cart NO. 2 to the various equipment installation sections 22 such as a bypass valve, a mud / hose drum, an invert injection facility, an air receiver, a compressor, etc. No. 3 equipment installation section 22 includes a split cart NO. No. 4 equipment installation section 22 includes a split cart NO. 5 in the various equipment installation sections 22 such as underground transformers, generators, etc. 6 to the various equipment installation sections 22 such as cable stock, underground chiller, etc. 7 are installed in various equipment installation sections 22 such as a cable stock, a rest area, a toilet, and a wind tube storage capsule.
In this way, the segment stock / automatic transfer device M2 is pulled by the shield machine M1 in the tunnel mine to follow the excavation progress of the shield machine M1, and each of the plurality of segments S is sequentially transferred from the rear side of the carriage 2 onto the carriage 2. Loaded through the rollers 3, driven by the rollers 3, sent to the front side of the carriage 2 and stocked on the carriage 2, and each segment S is shielded by driving each roller 3 according to the construction situation. Automatically conveys until just after M1.

1 and 2 also show usage examples of the apparatus M2.
As shown in FIG. 1, the shield machine M1 is cut by a machine body 10 having a cylindrical shield frame, a cutter 11 disposed to cut a face at the front portion of the machine body 10, and the cutter 11. A soil removal device 12 for taking the earth and sand into the machine body 10, an erector 13 provided inside the machine body 10 for assembling the segment S along the inner peripheral surface of the shield frame, and a ring A plurality of propulsion jacks 14 are provided on the inner circumferential surface of the shield frame at intervals in the circumferential direction in order to take the reaction force on the segment S assembled in a shape and advance the machine body 10. The shield machine M1 extends the propulsion jack 14, presses the cutter 11 against the face, cuts the face with the cutter 11, and takes the excavated earth and sand into the machine body 10 by the earth removing device 12. The main body 10 is made to dig according to the extension stroke of the propulsion jack 14. Then, after this excavation, the propulsion jack 14 is contracted to form a space between the existing segment S and the propulsion jack 14, and the segment S is assembled into a ring shape by the erector 13 in the space. Repeat this to build a tunnel.
As shown in FIGS. 1 and 2, the segment stock / automatic transport apparatus M2 is connected to the shield machine M1 and is paired with a pair of rails 2R laid from the wellhead to immediately after the shield machine M1 in the tunnel mine behind the shield machine M1. It is put on and travels on the rail 2R by towing the shield machine M1. A plurality of segments S are stacked on the carriage 2 via a plurality of rollers 3 and stocked on the carriage 2, and each roller 3 is driven according to the excavation progress of the shield machine M1 or the construction situation in the tunnel mine. The segment S on each roller 3 is automatically conveyed to immediately after the shield machine M1.

That is, in this apparatus M2, first, the loading of the segment S onto the carriage 2 is performed at the rear part of the carriage 2 (the rear part of the segment transport path SS). The segment S is transported on a transport vehicle C that travels in the tunnel mine to the rear of the carriage 2. In the transport vehicle C, the segment S transferred from the stock location of the segment in the tunnel mine or the stock location on the ground is loaded in a state of projecting downward and the longitudinal direction of the segment S is directed in the tunnel axis direction. Drive through the tunnel mine, enter the carriage 2 from the rear, and the rear divided carriage NO. 7, NO. No. 6 traveling on the road CD in the road No. 6 5, NO. Enters the traveling road CD in 4 and stops. And here (within the divided carriage NO.5), the segment S on the transport vehicle C is lifted by the swivel lifting machine L1 installed at the rear part of the carriage 2 (divided carriage NO.5) and turned 90 °. , The segment S is convex downward and the longitudinal direction is directed to the tunnel width direction, on the roller 3 at the rear part of the carriage 2 (divided carriage NO. 5), in this case, the rearmost two sets on the one side, a total of four sets The roller unit 3U (here, this roller unit 3U is referred to as the first roller unit 3U) is mounted. At this time, the segment S is brought into contact with the limit switch at this position, and the driving of each roller unit 3U is stopped and is not moved. Then, under the control of the control panel, there is no segment S on the four roller units 3U (here, this roller unit 3U is referred to as the next roller unit 3U), in total, two sets on the one side of the first roller unit 3U. Is confirmed by the limit switch, each of the next roller units 3U is first driven, and the segment S on the first roller unit 3U is transferred from the first roller unit 3U to the next roller unit 3U and moved forward, When this segment S is completely moved onto the next roller unit 3U, the segment S is brought into contact with the limit switch at this position, the driving of each roller unit 3U is stopped, and the forward movement is stopped. The segment S is sent to the front portion of the carriage 2 by repeating such a frame feed movement. In this way, the segment S is loaded onto the carriage 2 at the rear part of the carriage 2 (the rear part of the segment transport path SS), and the segments S for three rings including the inverted segments are loaded on all the rollers 3. Possible, ie stockable.
The segment S stocked on the carriage 2 is automatically and continuously sent to the front part of the carriage 2 by rotating the roller 3 for each roller unit 3U under the control of the control panel. The segment S sent to the front of the carriage 2 is sent to the shield machine M1 (the elector 13 of the shield machine M1) by a traverse hoisting machine L2 installed between the carriage 2 (divided carriage NO.1) and the shield machine M1. ). At this time, since the segment S is already convex downward and the longitudinal direction is directed to the tunnel width direction, the segment S is supplied to the erector 13 without changing its direction.
The segment stock / automatic transfer device M2 is pulled by the shield machine M1 every time the shield machine M1 is dug, and runs on the rail 2R that is laid and extended on the invert segment immediately after the shield machine M1. Thus, the stock of the segment S and the automatic conveyance are performed by the apparatus M2, and the segment S is continuously connected to the shield machine M1 (the elector 13 thereof) in cooperation with the rotary lifting machine L1 and the traverse type hoisting machine L2. Supplied.

  As described above, according to the segment stock / automatic transfer apparatus M2, the plurality of segments S are sequentially moved from the rear side of the carriage 2 by being pulled by the shield machine M1 in the tunnel mine and following the excavation progress of the shield machine M1. Each roller 3 is loaded onto each roller 3, driven by each roller 3, sent to the front side of the carriage 2, stocked on the carriage 2, and each segment S is shielded by driving each roller 3 according to the construction situation. Since it is automatically transported to immediately after M1, a stock location of a plurality of segments S is secured in the tunnel mine near the shield machine M1, and from this stock location, the shield machine M1 is efficiently excavated in accordance with the progress of excavation. A necessary number of segments S can be automatically conveyed toward the shield machine M1.

This device M2 has the following advantages in particular.
(1) Since the stock location of the segment S is secured on the carriage 2 behind the shield machine M1, the stock location of the segment S can be increased in addition to the original stock location of the segment S. The stock quantity of can be increased.
(2) Since a plurality of segments S can be stocked on the carriage 2 behind the shield machine M1, troubles may occur in the time zone during which the segment S cannot be transported due to nighttime noise regulations or restrictions on the surrounding environment, or on the transport route of the segment S. Even if there is, the shield machine M1 can be continuously excavated by the number of segments S stocked on the carriage 2 behind the shield machine M1. In the case of this apparatus M2, the shield machine M1 can be advanced for at least three rings. Thereby, the excavation cycle can be improved and the construction period can be shortened.
(3) Since the plurality of segments S are stocked on the carriage 2 behind the shield machine M1, the excavation cycle of the shield machine M1 and the transport cycle of the segment S can be separated, and time is lost due to mutual waiting for work. Can be reduced. Therefore, unlike the conventional case, the transportation of the segment S cannot catch up with the progress of excavation of the shield machine M1. Thereby, improvement of an excavation cycle and shortening of a construction period can be aimed at.
(4) Since the segment S is automatically transported from the carriage 2 behind the shield machine M1 to the shield machine M1 by a plurality of rollers 3 (roller conveyors), it is possible to reduce the number of personnel conventionally required in this process. The safety of work can be ensured by mechanization and automation.

M1 Shield machine 10 Machine body 11 Cutter 12 Waste soil device 13 Elector 14 Propulsion jack S Segment M2 Segment stock and automatic transfer device 2 Car 2R Rail NO. 1-NO. 7 dividing carriage 20 wheel 200 connecting part 201 connecting pin 2D lower stage 2C middle stage 2U upper stage SS segment transport path CD transport vehicle travel path 21 roller support section 210 beam material 211 beam material 212 beam material 213 beam material 214 beam material 215 beam material 216 Support member 217 Beam material 218 Support member 22 Various equipment installation parts 3 Roller 3U Roller unit 31 Support plate 32 Power transmission mechanism 4 Drive device C Transport vehicle (multipurpose transport vehicle)
L1 Swivel hoist (swivel hoist)
L2 Traverse hoisting machine (traverse hoist)
r Traverse rail R1 Safety passage R2 Work passage R3 Upper hollow corridor R4 Middle hollow corridor B Traction beam W Traction wire

Claims (6)

A carriage connected to a shield machine in a tunnel mine, extending rearward from immediately after the shield machine, and capable of loading segments for a plurality of rings;
A plurality of rollers arranged in parallel in the front-rear direction so that each segment can be supported on the carriage, and a driving device that rotationally drives each roller;
With
Following the excavation progress of the shield machine being pulled by the shield machine in the tunnel mine,
A plurality of segments are sequentially loaded from the rear side of the carriage onto the carriage via the rollers, and are sent to the front side of the carriage by driving the rollers and stocked on the carriage, depending on the construction situation. Each of the rollers is driven to automatically convey each segment immediately after the shield machine.
A segment stock and automatic transfer device.   The segment stock and automatic transfer device according to claim 1, wherein the carriage is configured by connecting a plurality of divided carriages.   The segment stock / automatic transfer device according to claim 1 or 2, wherein the carriage has at least a two-stage structure, a roller and a driving device are installed at a lower stage, and an incidental facility for a shield machine is mounted at an upper stage.   At least the rear part of the carriage is formed in a gate shape so that the segment transportation vehicle can move forward and backward, and a swivel lifter is also provided above the rear part of the carriage so that the segment can be transferred from the transportation vehicle onto a roller on the rear side of the carriage. The segment stock and automatic conveyance device according to any one of claims 1 to 3.   The segment according to any one of claims 1 to 4, further comprising a traverse type hoist so that the segment sent to the front side of the carriage can be transported toward the shield machine between the shield machine and the carriage. Stock and automatic transfer device. 6. The segment stock / automatic transfer device according to claim 1, wherein the plurality of rollers are arranged so that the segments are convex downward and the longitudinal direction of the segments can be supported in the tunnel width direction.