JP2004183419A - Construction device for shield tunnel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve construction cycles, and use the size of a economically advantageous segment piece. <P>SOLUTION: A construction device comprises a shield machine 10 arranged on the edge, subsequent trucks 24a-24e mounting various subsequent facilities, an erector 23 circularly assembling a curved plate segment piece 22, and a segment conveying device 30. The conveying device 30 comprises a segment supply part 31 installed between the subsequent truck 24a and the shield machine 10 and supplying the piece 22 to the erector 23, and a roller conveyor unit 32 installed on the upper side of the subsequent trucks 24a-24e installing the subsequent facilities on the lower side respectively. The piece 22 is conveyed with the conveying device 30 in the state that an inter-ring joint face 22a is directed in the excavation direction of the shield machine 10. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus for constructing a shield tunnel, and more particularly to an improved technique for transporting segment pieces used for constructing a shield tunnel.
[0002]
[Prior art]
The shield tunnel construction equipment using the shield excavator is equipped with a succeeding bogie on which various subsequent equipment such as a power unit, a control panel, a hydraulic and power supply unit, and a relay pump are installed behind the shield excavator. The bogie is typically towed by a shield machine.
[0003]
In such a shield tunnel construction device, a trailing bogie is arranged on one side of the constructed tunnel cross section, and a segment transporting bogie or a scrap steel truck travels in the remaining space. (See Non-Patent Documents 1 and 2)
[0004]
However, such a conventional shield tunnel construction apparatus has a technical problem described below.
[0005]
[Non-patent document 1]
Published by Civil Engineering Co., Ltd., “Examples of Shield Construction Work”, 2001 edition, p293-299, Fig.-9
[0006]
[Non-patent document 2]
Published by Civil Engineering Co., Ltd., "Examples of Shield Construction Work (2)", 2001 edition, p226-231, Figure-9
[0007]
[Problems to be solved by the invention]
That is, in the above-described conventional shield tunnel construction apparatus, the trailing trolley and the segment transport trolley are arranged in two rows in the tunnel cross section. Segment width and the number of divisions in the circumferential direction).
[0008]
For this reason, it has been impossible to improve the construction cycle and to increase the width of the segment piece, which is economically advantageous, and to adopt a long segment piece with a small number of divisions.
[0009]
The present invention has been made in view of such conventional problems, and has as its object to improve the construction cycle and economically advantageous size of the segment piece (segment width and circumferential direction). The present invention is to provide a shield tunnel construction apparatus that can adopt the above (number of divisions).
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a shield excavator disposed at the tip and various subsequent units such as a power unit, a control panel, a hydraulic pressure and a power supply unit of the shield excavator which are installed behind the shield excavator. A trailing truck on which equipment is mounted, an erector for assembling a curved plate-shaped segment piece in an annular shape along a digging surface formed by the excavation of the shield excavator on the rear side of the shield excavator; And a segment transport device for supplying the segment pieces to the shield tunnel, wherein the transport device is a roller conveyor installed on the upper side of the trailer truck on which the subsequent equipment is installed on the lower side. Unit, installed between the trailing bogie and the shield machine, from the roller conveyor unit A segment supply unit for supplying the received segment piece to the erector, wherein the segment piece is conveyed by the transport device with the inter-ring joint surface oriented in the transverse direction of the shield tunnel. .
[0011]
According to the shield tunnel construction device configured in this manner, the transport device is a roller conveyor unit installed on the upper side of the succeeding bogie where the subsequent equipment is installed on the lower side, and the subsequent bogie and the shield excavator. And a segment supply unit that supplies the segment pieces received from the roller conveyor unit to the erector, so that the segment pieces are almost unaffected by the size of the subsequent equipment and have a large size. Can be determined.
[0012]
Further, in the construction device having the above configuration, the segment pieces are transported by the transport device in a state where the inter-ring joint surface is oriented in the transverse direction of the shield tunnel, so that the segment pieces are changed in direction from the wellhead to the erector. Can be conveyed in the same direction without performing the rotation operation of the segment piece, and the width and length of the segment piece can be further increased.
[0013]
The transport device may include a segment transport trolley that carries the segment piece and transfers the segment piece to the succeeding trolley.
[0014]
The transport device may include a lifter device that holds the segment piece and changes a transport height thereof.
[0015]
The roller conveyor unit may be arranged so that the segment pieces can be transported to the adjacent roller conveyor unit between the succeeding bogies adjacent in the front-rear direction.
[0016]
The roller conveyor unit can be installed near a horizontal line passing over the center of the shield tunnel to be constructed.
[0017]
The segment piece may be mounted on the roller conveyor unit such that the upper side is concave or convex.
[0018]
The segment piece can be pulled and moved by a winch provided on the ceiling of the existing segment.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 to 5 show one embodiment of a shield tunnel construction apparatus according to the present invention.
[0020]
The construction apparatus of the shield tunnel shown in FIG. 1 illustrates a case where the apparatus is applied when a shield tunnel is constructed by a slurry type shield machine 10. The shield machine 10 is disposed on the distal end side and has hollow cylindrical front and rear body portions 11 and 12.
[0021]
A cutter head 13 for excavating the ground by being driven to rotate is provided on the tip side of the front trunk portion 11, and a partition wall 15 for separating a chamber 14 filled with excavated earth and sand is provided on the back side of the cutter head 13. Is provided.
[0022]
One end of a sludge discharging device 16 constituted by a screw conveyor is opened and installed in the chamber 14, and a sediment pump 17 is disposed at an outlet of the sludge discharging device 16. Tube 18 is connected.
[0023]
A bent jack 19 and a shield jack 20 are arranged between the front and rear body portions 11 and 12, and the shield jack 20 is opposed to a segment 21 assembled annularly on the rear end side of the rear body portion 12. With force, the shield machine 10 is moved forward.
[0024]
The segments 21 are assembled in a ring shape by connecting the circumferential joints of a plurality of curved plate-shaped segment pieces 22 to each other, and the assembled rings are sequentially arranged via the inter-ring joint surface 22a of the segment piece 22. Thus, they are connected to each other in the front-rear direction and formed into a cylindrical shape to stabilize the tunnel shape.
[0025]
At this time, an erector 23 disposed on the rear side of the rear body 12 is used for assembling the segment pieces 22. On the rear side of the shield machine 10, a plurality of tow-movable first to fifth trailers 24a to 24e tow and move by the shield machine 10 are arranged.
[0026]
A power unit 25 that supplies power required for excavation of the excavator 10 is mounted on the first trailer 24a. A control panel 26 that controls the excavation of the shield excavator 10 and the drive control of the erector 23 is mounted on the second succeeding bogie 24b.
[0027]
An oil unit 27 that supplies oil to the power unit 25 is mounted on the third succeeding bogie 24c. A power supply 28 for supplying electric power to the control panel 26 and the like is mounted on the fourth succeeding bogie 24d. The fifth trailing bogie 24e is mounted with a telescopic pressure feed pipe 29 used to add the mud drain pipe 18 as the shield machine 10 advances.
[0028]
Although the configuration of the various types of subsequent equipment mounted on the shield machine 10 and the subsequent bogies 24a to 24e as described above is substantially the same as a conventional device of this type, the construction device of this embodiment is as follows. The conveying device 30 for the segment piece 22 described in FIG.
[0029]
That is, the transport device 30 of the present embodiment includes the segment supply unit 31, the roller conveyor unit 32, the lifter truck 34, and the segment transport truck 36.
[0030]
The segment supply unit 31 is provided between the lifter truck 34 and the shield machine 10, and supplies the segment piece 22 to the erector 23. FIG. 2 shows the details of the segment supply unit 31.
[0031]
The segment supply unit 31 shown in the figure includes a gate-shaped cart 31a in which the mud pipe 18 is inserted and supported, and a pair of roller conveyors 31b fixedly opposed to the upper end of the cart 31a. , A wheel 31c provided on the lower end of the bogie portion 31a and rolling on a rail 38 laid on the invert portion of the existing segment 21.
[0032]
Each roller conveyor 31b is rotatably supported by a mounting table 31d. The mounting base 31d is fixed to the bogie unit 31a such that the rotating shaft of each roller conveyor 31b is on the same tunnel cross section, and is inclined downward from the center toward the outside between a pair of opposed conveyors. Have been.
[0033]
The pair of roller conveyors 31b arranged opposite each other are arranged in a row at predetermined intervals along the tunnel axis direction of the bogie unit 31a, and a pair of roller conveyors 31b are provided on the roller conveyor 31b. Are placed so that the upper side is convex.
[0034]
In this mounting state, the inter-ring joint surface 22a of the segment piece 22 is mounted so as to face in a direction perpendicular to the direction in which the shield machine 10 excavates, that is, in the transverse direction of the tunnel.
[0035]
In the case of the present embodiment, since the exhaust pipe 18 extends rearward from a lower position on the rear side of the shield machine 10, it avoids interference with this, and the erector 23 has a segment piece at a higher position. 2, the transport position of the segment piece 22 placed on the segment supply unit 31 is considerably larger than the horizontal line HL on the center of the shield tunnel, as shown in FIG. Above, both ends in the longitudinal direction of the placed segment piece 22 are close to the inner surface of the existing segment 21 of the shield tunnel.
[0036]
On the other hand, the roller conveyor unit 32 is disposed on each of the first to fifth succeeding bogies 24a to 24e in which subsequent facilities such as the power unit 25 are installed on the lower side.
[0037]
The first succeeding bogie 24a is arranged behind the lifter bogie 34, and the second succeeding bogie 24b to the fifth succeeding bogie 24e are arranged adjacent to the rear of the first succeeding bogie 24a in this order.
[0038]
FIG. 3 is a detailed view of the first trailer 24a on which the roller conveyor unit 32 is installed. Although the first to fifth trailers have different types of trailing equipment mounted thereon, the configurations of the truck itself and the roller conveyor unit 32 are the same, so the details will be described below with the first trailer 24a as a representative. Will be described.
[0039]
The first succeeding bogie 24a shown in the figure includes a top plate 240a, a pair of side plates 241a and a bottom plate 242a. The top plate 240a is a flat plate having a predetermined width and length, and is provided substantially at the center of the cross section of the tunnel, extends substantially horizontally, and has a pair of side plates 241a at both ends of the lower surface thereof. Is established.
[0040]
Both ends of the bottom plate 242a are fixed to the lower end of the side plate 241a. At a lower end of the side plate 241a, a plurality of wheels 243a that roll along a rail 38 laid on the tunnel invert portion are rotatably installed.
[0041]
The drainage pipe 18 is disposed on the side of the first trailing bogie 24a, and at a portion surrounded by the top plate 240a, the side plate 241a, and the bottom plate 242a, that is, at a lower side of the first trailing bogie 24a, 25 are mounted.
[0042]
The roller conveyor unit 32 is installed on the top plate 240a. The roller conveyor unit 32 includes a plurality of rollers 32a and a support member 32b that rotatably supports each roller 32a.
[0043]
In the case of the present embodiment, the pair of rollers 32a is arranged so as to be inclined in the cross section of the tunnel so that the rotation axis descends outward from the center, forming a C-shape.
[0044]
Such rollers 32a are provided over the entire length in the tunnel axis direction of the first succeeding bogie 24a at predetermined intervals along the tunnel axis direction. On the other hand, the segment pieces 22 are in the shape of a curved plate divided into predetermined widths and lengths, and are provided on the rollers 32a of the conveyor unit 32 at both ends in the width direction as shown in FIG. The ring-to-ring joint surface 22a is mounted so as to face in the transverse direction of the tunnel to be constructed and to have a convex upper side.
[0045]
At this time, the C-shaped roller 32 a of the roller conveyor unit 32 is installed at an angle such that the outer surface of the roller 32 a contacts the inner peripheral surface of the segment piece 22.
[0046]
As shown in FIG. 3, the placement position (transport position) of the segment piece 22 on the roller conveyor 32 is such that both ends in the longitudinal direction substantially coincide with a horizontal line HL passing through the center of the shield tunnel.
[0047]
When the transfer position is set at such a location, the widest part in the horizontal direction in the cross section can be effectively used, and the large divided segment piece 22 can be transferred.
[0048]
On the upper side of the second to fourth succeeding carriages 24b to 24e, a roller conveyor unit 32 constituting a part of the transport device 30 for the segment pieces 22 is mounted, and the transport of the segment pieces 22 of each roller conveyor unit 32 is performed. The position is set so as to be the same height as the first succeeding bogie 24a.
[0049]
The lifter trolley 34 is disposed between the segment supply unit 31 and the first succeeding trolley 24a, holds the segment piece 22, and adjusts the transport height of the transport device 30. In the case of the present embodiment, Since the transport position of the segment supply unit 31 is higher than the transport position of the first subsequent carriage 24a, the height position is adjusted when the segment pieces 22 are transported between them. I have.
[0050]
FIG. 4 shows details of the lifter truck 34. The lifter trolley 34 shown in the figure includes a trolley main body 34a and a roller conveyor 34b installed above the trolley main body 34a.
[0051]
The bogie main body 34a includes a plurality of wheels 34c running on the rails 38, and includes a plurality of jacks 34d for vertically moving the segment piece 22 while holding the segment piece 22. The sludge pipe 18 extending to the rear side of the shield machine 10 is bent laterally in front of the lifter truck 34 and is supported on the side surface of the existing segment 21.
[0052]
In addition, the roller conveyor 34b has a pair of rollers whose rotation axes are arranged in a C-shape, so that the segment piece 22 is convex on the upper side, and the inter-ring joint surface 22a faces in the tunnel transverse direction. It is mounted and mounted, and has substantially the same configuration as the roller conveyor unit 32 provided in each of the subsequent carriages 24a to 24e.
[0053]
If the lifter truck 34 having such a configuration is installed at an appropriate place of the transport device 30, it is possible to easily cope with a case where the transport height of the segment pieces 22 is different due to the size of the subsequent equipment and the like.
[0054]
Note that the lifter truck 34 shown in this embodiment is not necessarily required when the transport positions of the segment supply unit 31 and the first succeeding truck 24a are matched.
[0055]
The segment transport vehicle 36 is disposed behind the fifth succeeding vehicle 24e, and in the case of the present embodiment, a plurality of vehicles having the same configuration are used, and details of one of them is shown in FIG.
[0056]
The segment transporting vehicle 36 shown in the figure includes a bogie main body 36a, and a roller conveyor 36b installed above the bogie main body 36a. The bogie main body 36a includes a plurality of wheels 36c running on rails 38, and has substantially the same configuration as the following bogies 24a to 24e.
[0057]
In addition, the roller conveyor 36b has a pair of rollers whose rotation axes are arranged in a C-shape, and the segment piece 22 has a convex upper side, and the inter-ring joint surface 22a faces in the tunnel transverse direction. It is mounted, and has substantially the same configuration as the roller conveyor unit 32 provided in each of the subsequent trucks 24a to 24e.
[0058]
The transport position of the segment piece 22 of the segment transport trolley 36 thus configured is at the same height position as each of the succeeding trolleys 24a to 24e. Note that the segment transport cart 36 shown in this embodiment is not necessarily required if the segment piece 22 is directly mounted on the fifth succeeding cart 24e.
[0059]
In the shield tunnel construction apparatus configured as described above, the shield machine 10 is excavated to excavate the ground, and the segment piece 22 is assembled in an annular shape on the excavated wall at the rear side of the shield machine 10. With the excavation of the shield excavator 10, the assembled rings are sequentially connected to each other in the front-rear direction via the inter-joint portion 22a of the segment piece 22 to form a cylindrical shape. Stabilize the shape.
[0060]
At this time, in the case of the present embodiment, the segment piece 22 is shielded by the shield excavator via the segment conveyor trolley 36, the roller conveyor unit 32 mounted on the succeeding trolleys 24a to 24e, the lifter trolley 34, and the segment supply unit 31. It is supplied to ten erectors 23.
[0061]
When the segment pieces 22 are transferred between the transfer devices 30, the segment pieces 22 are towed by a winch 40 installed on the ceiling of the existing segment 21. The transfer mode at this time will be described.
[0062]
The segment piece 22 has its inter-ring joint surface 22a oriented in a direction perpendicular to the direction of excavation of the shield machine 10, that is, in a transverse direction of a tunnel to be constructed, and has a convex upper side. It is mounted on a segment carrier 36 disposed on the wellhead side.
[0063]
In this case, the roller conveyor 36b between the plurality of segment conveyors 36 adjusts the roller arrangement interval and the like so that the segment pieces 22 can be prevented from falling off between adjacent conveyors 36b and can be transferred. Have been.
[0064]
The segment piece 22 mounted on the segment transport vehicle 36 is towed by the winch 40, moves on the plurality of transport vehicles 36, and is then transported to the roller conveyor unit 32 of the fifth succeeding vehicle 24e.
[0065]
In this case, similarly to the case between the transport vehicles 36, the roller arrangement interval and the like are set between the transport vehicles 36 and the roller conveyor units 32 of the fifth succeeding vehicle 24e so that the segment pieces 22 can be transferred. Has been adjusted. Note that such position adjustment between the carts is similarly set, for example, between the subsequent carts 24a to 24e.
[0066]
Then, when the segment piece 22 is pulled by the winch 40 and moves on the upper side of the second to fifth succeeding bogies 24b to 24e and reaches the end of the first subsequent bogie 24a, the segment piece 22 is lifted by the lifter bogie. 34.
[0067]
At this time, the jack 34d of the lifter truck 34 is driven to make the transport position of the roller conveyor 34b coincide with the transport position of the conveyor unit 32 mounted on the first succeeding truck 24a. The piece 22 is transferred to the lifter truck 34.
[0068]
The lifter cart 34 that has received the segment piece 22 further extends the jack 34d so that the transport position of the roller conveyor 34b matches the transport position of the roller conveyor 31b of the segment supply unit 31, and in this state, the segment piece 22 is transferred to the segment supply unit 31.
[0069]
The segment supply unit 31 having received the segment piece 22 moves the segment piece forward, and then supplies the segment piece 22 to the erector 23. Through such an operation, the segment piece 22 is supplied to the erector 23, and thereafter, the same operation is sequentially repeated. In such a transport process, the segment piece 22 is transferred to the segment transport vehicle 36. It is supplied to the erector 23 without changing its direction while maintaining the installed state.
[0070]
Now, according to the shield tunnel construction device configured as described above, the transport device 30 includes the roller conveyor units 32 installed on the upper sides of the subsequent trucks 24a to 24e on which the subsequent facilities are installed on the lower side. And a segment supply unit that is provided between the trailing bogies 24a to 24e and the shield machine 10 and supplies the segment piece 22 to the erector 23. Its size can be determined with little effect.
[0071]
If the size of the segment piece 22 can be determined regardless of the subsequent equipment, an improvement in the construction cycle and an economically advantageous widening of the segment piece 22 and a long segment piece with a small number of divisions are employed. It becomes possible.
[0072]
In addition, when the subsequent equipment is installed on the lower side of the succeeding carriages 24a to 24e and the roller conveyor unit 32 for transporting the segment pieces 22 is provided on the upper side, the conveyance of the segment pieces 22 is isolated on the upper side. Therefore, safety is also improved.
[0073]
Furthermore, in the construction apparatus of the present embodiment, the segment pieces 22 can be transported from the wellhead to the erector 23 in the same direction without performing a rotating operation for changing the direction, so that the segment pieces 22 can be further improved. Widening and lengthening are achieved.
[0074]
FIGS. 6 and 7 show a second embodiment of the shield tunnel construction apparatus according to the present invention, in which the same or corresponding parts as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only that point will be described.
[0075]
In the embodiment shown in the figure, the present invention is applied when the total length of the shield tunnel to be constructed is long and it is necessary to provide a plurality of relay pumps 42 and quantitative tanks 43 in the middle of the exhaust pipe 18. Shows the case.
[0076]
FIG. 6 is a main part drawing showing a further rear side of the segment transporting vehicle 36 shown in FIG. 1 of the above embodiment, and the relay pressure pump 42 and the fixed quantity tank 43 are provided after the plurality of segment transporting vehicles 36. A mounted fixed sixth trailer 24f is disposed, and a plurality of segment transport trucks 36 are disposed after the sixth trailer 24f.
[0077]
In addition, the relay pumping pump 42 and the fixed quantity tank 43 shown in FIG. 6 are not limited to one location, and a plurality of relay pressure pumps 42 and a fixed quantity tank 43 may be provided at predetermined intervals according to the extension of the construction of the shield tunnel.
[0078]
FIG. 7 shows details of the sixth trailer 24f. The trailing bogie 24f shown in the drawing includes a top plate 240f, a side plate 241f, and a bottom plate 242f, similarly to the trailing bogie of the above embodiment.
[0079]
The side plate 241f is vertically installed facing the lower surface on both ends of the top plate 240f, and both ends of a bottom plate 242f are fixed to the lower end of the side plate 241f. The side plate 241f is seated on the inverted portion of the segment 21 already installed, and the sixth trailer 24f is a fixed trailer unlike the trailer of the above embodiment.
[0080]
The relay pumping pump 42 and the fixed quantity tank 43 (subsequent equipment) are mounted on the lower side of the subsequent truck 24f surrounded by the top plate 240f, the side plate 241f, and the bottom plate 242f.
[0081]
On the other hand, a roller conveyor unit 32 that constitutes a part of the segment transport device 30 is mounted on the upper side of the subsequent truck 24f, that is, above the top plate 240f. The configuration is substantially the same as the above embodiment.
[0082]
Also in the shield tunnel construction device configured as described above, the following equipment is installed on the lower side of the fixed following truck 24f, and the transport device 30 for the segment piece 22 is provided on the upper side, and the The segment piece 22 can be supplied to the erector 23 through the transport device 30 in a state where the inter-ring joint surface 22a is oriented in the cross-sectional direction of the tunnel to be constructed. The size can be determined without being affected, and the same operation and effect as in the above embodiment can be obtained.
[0083]
Further, in the case of the present embodiment, the segment transport vehicles 36 are arranged before and after the fixed succeeding vehicle 24f, and if such a configuration is adopted, a plurality of fixed vehicles separated and arranged at predetermined intervals are provided. The connection between the succeeding trucks can be smoothly performed by the transport truck 36.
[0084]
FIG. 8 shows a third embodiment of a shield tunnel construction apparatus according to the present invention, in which the same or corresponding parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Only that point will be described.
[0085]
FIG. 3 shows a segment supply unit 310 that supplies the segment pieces 22 to the erector 23. The segment supply unit 310 of the present embodiment includes a gantry 310a and a roller conveyor 310b.
[0086]
The gantry 310a is supported at both lateral ends by anchors embedded in the existing segment 21, and has a roller conveyor 310b at the upper end. The gantry 310a can be sequentially changed to the front side as the shield machine 10 excavates.
[0087]
In the roller conveyor 310b, a pair of rollers are arranged on the same tunnel cross section, and on the same cross section, the rotating shaft is inclined so as to descend from the center to the outside, and is arranged so as to form a C-shape. .
[0088]
In the segment supply unit 310 configured as described above, the segment piece 22 is placed on the roller conveyor 310b such that the inter-ring joint surface 22a faces in the tunnel traversing direction and the upper side is convex. Then, it is supplied to the erector 23. Even when the segment supply unit 310 having such a configuration is used, the same operation and effect as those of the above embodiment can be obtained.
[0089]
FIGS. 9 to 13 show a fourth embodiment of the shield tunnel construction apparatus according to the present invention, in which the same or corresponding parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Hereinafter, only the characteristic points will be described.
[0090]
The construction apparatus according to the present embodiment includes a shield machine 10 as in the first embodiment, and an erector 23 for assembling a segment 21 is installed on the machine 10, and a segment piece is attached to the erector 23. The transfer device 30 includes a transfer device 30a for transferring the P.22.
[0091]
The transport device 30a includes a segment supply unit 311, a roller conveyor unit 320, a lifter truck 340, and a segment transport truck 360, as in the above-described embodiment.
[0092]
The segment supply unit 311 is installed between the lifter truck 34 and the shield machine 10 and supplies the segment piece 22 to the erector 23. FIG. 10 shows the details of the segment supply section 311.
[0093]
In the segment supply section 311 shown in the figure, since the exhaust pipe 18 extends from the rear side of the shield machine 10 toward the ceiling side, it avoids interference with this, and the segment supply section 311 And has a base 311a, a rotating roller 311b, and a roller conveyor 311c. The base 311a is a flat plate formed in a curved shape along the tunnel cross section, and a plurality of rotating rollers 311b are rotatably supported on the lower surface thereof.
[0094]
The rotating roller 311b comes into contact with the surface of the inverted portion of the existing segment 21 and rolls. The roller conveyor 311c is arranged on the upper surface side of the base 311a.
[0095]
The roller conveyor 311c is arranged such that the rotation axes of a pair of rollers arranged on the same cross section are inclined so as to descend toward the center side, and are formed in an inverted C shape.
[0096]
The segment piece 22 is placed on the roller conveyor 311c such that the inter-ring joint surface 22a faces the tunnel crossing direction and the upper side is concave.
[0097]
In this case, the angle of inclination of the rollers of the roller conveyor 311c is set to an angle at which each roller slides on the outer peripheral surface of the segment piece 22 on which the roller is placed. The segment supply unit 311 configured as described above can select either towing and moving to the shield machine 10 or to move the shield alone, and remove the rotating roller 311b to fix it. It can also be.
[0098]
The roller conveyor unit 320 is installed on the upper side of the first to fifth succeeding bogies 24a to 24e in the same manner as in the above-described embodiment. Is installed.
[0099]
The configuration of each of the succeeding bogies 24a to 24e is substantially the same as in the above-described embodiment. As shown in FIG. 11, as a representative of the details of the first subsequent bogie 24a, a top plate 240a and a pair of It has a side plate 241a and a bottom plate 242a. Both ends of the bottom plate 242a are fixed to the lower end of the side plate 241a. At a lower end of the side plate 241a, a plurality of wheels 243a that roll along a rail 38 laid on the tunnel invert portion are rotatably installed.
[0100]
In the case of the present embodiment, the drainage pipe 18 is supported on the ceiling side of the existing segment 21, and is bent to the center of the cross section immediately before the fifth succeeding bogie 24 e to be connected to the telescopic pumping pipe 29. Have been.
[0101]
In the case of the present embodiment, the roller conveyor unit 320 is installed on the top plate 240a. The roller conveyor unit 320 includes a plurality of rollers 320a and a support member 320b that rotatably supports each roller 320a. In the case of the present embodiment, a pair of rollers 320a are arranged so as to be inclined on the cross section of the tunnel so that the rotation axis descends toward the center, and form an inverted C-shape.
[0102]
Such rollers 320a are provided along the tunnel axis direction of the first succeeding bogie 24a at predetermined intervals along the tunnel axis direction and over the entire length thereof.
[0103]
On the other hand, the segment piece 22 is a curved plate shaped into a predetermined width and length according to the cross section of the tunnel to be constructed, and is provided on the roller 320a of the conveyor unit 320 as shown in FIG. As shown in the figure, it is mounted so that it faces the cross direction of the tunnel for constructing the inter-ring joint surface 22a provided at both ends in the width direction and that the upper side is concave.
[0104]
At this time, the inverted C-shaped roller 320a of the roller conveyor unit 320 is installed at an angle such that the outer surface of the roller 320a is in contact with the outer peripheral surface of the segment piece 22.
[0105]
The roller conveyor unit 320 provided on each of the subsequent vehicles 24b to 24e has substantially the same configuration as that provided on the first subsequent vehicle 24a. In the case of this embodiment, the transport position of the roller conveyor unit 320 provided on the succeeding bogies 24a to 24e, that is, the lower end of the segment piece 22 mounted on the roller 320a of the unit 320 is substantially on the center of the tunnel cross section. It is set as follows.
[0106]
The lifter trolley 340 is disposed between the segment supply unit 311 and the first succeeding trolley 24a, holds the segment piece 22, and adjusts the transport height of the transport device 30a.
[0107]
Details of the lifter trolley 340 are shown in FIG. The lifter trolley 340 shown in the figure includes a trolley main body 340a and a roller conveyor 340b installed above the trolley main body 340a.
[0108]
The bogie main body 340a includes a plurality of wheels 340c running on the rails 38, and includes a plurality of jacks 340d for vertically moving the segment piece 22 while holding the segment piece 22.
[0109]
In addition, the roller conveyor 340b has a pair of rollers whose rotating shafts are arranged in an inverted C-shape, and the segment pieces 22 are concave on the upper side and the inter-ring joint surface 22a faces in the tunnel transverse direction. It is mounted and mounted, and has substantially the same configuration as the roller conveyor unit 320 provided in each of the subsequent carriages 24a to 24e.
[0110]
The segment transport vehicle 360 is disposed behind the fifth succeeding vehicle 24e, and details thereof are shown in FIG. The segment transport trolley 360 shown in the figure includes a trolley main body 360a and a roller conveyor 360b installed above the trolley main body 360a. The bogie main body 360a includes a plurality of wheels 360c running on the rails 38, and has substantially the same configuration as the following bogies 24a to 24e.
[0111]
In addition, the roller conveyor 360b has a pair of rollers whose rotation axes are arranged in an inverted C-shape, and the segment piece 22 has a concave upper side and the inter-ring joint surface 22a faces the tunnel crossing direction. It is mounted, and has substantially the same configuration as the roller conveyor unit 320 provided in each of the subsequent carriages 24a to 24e.
The transport position of the segment piece 22 of the segment transport trolley 360 thus configured is at the same height position as each of the succeeding trolleys 24a to 24e.
Also in the shield tunnel construction device configured as described above, when the segment pieces 22 are supplied to the erector 23 by the transport device 30a, the same operation and effect as those in the above embodiment can be obtained.
[0112]
FIG. 14 shows a fifth embodiment of the shield tunnel construction apparatus according to the present invention. The same or corresponding parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Only the characteristic points will be described.
[0113]
This embodiment is an example in which the configuration of the succeeding bogies 24a to 24e of the fourth embodiment is slightly changed, and FIG. 14 is a detailed view of the first subsequent bogie 24a '. In this embodiment, the trailing bogie 24a 'has a bottom plate 240a' and a plurality of wheels 241a 'fixed to the lower surface of the bottom plate 240a' and rolling along rails 38 laid on the tunnel invert portion. ing.
[0114]
On the bottom plate 240a ', inverted conveyer support portions 242a' are arranged in two rows so as to separate the passage space 50 at the center, and a power unit is provided in each conveyor support portion 242a '. Subsequent equipment such as 25 is mounted. For example, since the oil unit 27 and the like can be divided into two, they may be mounted separately on the left and right.
[0115]
Roller conveyor units 320 are installed on the left and right conveyor support portions 242a ', similarly to the above-described embodiment. In the case of the present embodiment, the roller conveyor unit 320 includes a plurality of rollers 320a and a support member 320b that rotatably supports each roller 320a, and is installed on each conveyor support portion 242a ′ in a form divided into right and left. Have been.
[0116]
A pair of rollers 320a arranged on each conveyor support 242a 'are inclined so that the rotation axis descends toward the center side on the tunnel cross section, and are arranged so as to form an inverted C shape. .
[0117]
In the fifth embodiment configured as described above, the segment piece 22 is placed on the roller 320a of the conveyor unit 320 in a state in which the segment piece 22 faces the cross direction of the tunnel where the inter-ring joint surface 22a is constructed, and the upper side is concave. In this state, as in the above-described embodiments, it can be supplied to the erector 23, and when the segment piece 22 is not mounted on the conveyor unit 320, the height is increased to the top of the tunnel. It can be used as a certain passage space 50.
[0118]
【The invention's effect】
As described above in detail, according to the shield tunnel construction apparatus according to the present invention, the size of the segment piece (the width of the segment and the number of divisions in the circumferential direction) that is advantageous in improving the construction cycle and economically is adopted. can do.
[Brief description of the drawings]
FIG. 1 is a side view of an overall configuration showing a first embodiment of a shield tunnel construction apparatus according to the present invention.
FIG. 2 is a view taken along the line AA of FIG. 1;
FIG. 3 is a view taken along line BB of FIG. 1;
FIG. 4 is a view taken along line CC in FIG. 1;
FIG. 5 is a view taken along line DD in FIG. 1;
FIG. 6 is a main part side view showing a second embodiment of the shield tunnel construction apparatus according to the present invention.
FIG. 7 is a view taken along line EE of FIG. 6;
FIG. 8 is a sectional view of a main part showing a third embodiment of the shield tunnel construction apparatus according to the present invention.
FIG. 9 is a side view of the overall configuration showing a fourth embodiment of the shield tunnel construction apparatus according to the present invention.
FIG. 10 is a view taken along the line FF of FIG. 9;
FIG. 11 is a view taken along line GG of FIG. 9;
FIG. 12 is a view taken along the line HH in FIG. 9;
FIG. 13 is a view taken along line II of FIG. 9;
FIG. 14 is a main part side view showing a fifth embodiment of the shield tunnel construction apparatus according to the present invention.
[Explanation of symbols]
10 shield machine
18 Waste pipe
23 Erector
24a-24g 1st-7th trailer
25 Power unit
26 Control panel
30 Transport equipment
32 Roller Conveyor Unit
36-segment carrier

Claims (7)

A shield machine located at the tip,
A trailing bogie that is installed behind the shield excavator and is equipped with various subsequent equipment such as a power unit, a control panel, a hydraulic pressure and a power supply unit of the shield excavator;
On the rear side of the shield machine, along an excavated surface formed by excavation of the shield machine, an erector that assembles a curved plate-shaped segment piece in an annular shape,
In a construction apparatus of a shield tunnel including a segment transport device that supplies the segment piece to the erector,
A roller conveyor unit installed on an upper side of the succeeding bogie where the succeeding equipment is installed on a lower side, and a roller conveyor unit installed between the succeeding bogie and the shield excavator; A segment supply unit that supplies the segment piece received from the unit to the erector,
The said segment piece is conveyed by the said conveyance apparatus with the joint surface between rings facing the transverse direction of the said shield tunnel, The construction apparatus of the shield tunnel characterized by the above-mentioned. The apparatus according to claim 1, wherein the transport device includes a segment transport trolley on which the segment piece is mounted and transferred to the succeeding trolley. 2. The shield tunnel construction device according to claim 1, wherein the transport device has a lifter device that holds the segment piece and changes a transport height thereof. 3. The roller conveyor unit according to any one of claims 1 to 3, wherein the segment pieces are arranged so as to be transportable between the adjacent carriages in the front-rear direction and on the adjacent roller conveyor unit. Construction equipment for shield tunnel. 5. The shield tunnel construction apparatus according to claim 4, wherein the roller conveyor unit is installed near a horizontal line passing over the center of the shield tunnel to be constructed. The shield tunnel construction apparatus according to claim 4, wherein the segment piece is mounted on the roller conveyor unit so that an upper side is concave or convex. The shield tunnel construction device according to any one of claims 1 to 6, wherein the segment piece is pulled and moved by a winch provided on a ceiling portion of an existing segment.

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