JP3217766B2 - Method and apparatus for assembling columnar segments of a multiple shield excavator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for assembling a columnar segment of a multiple shield excavator, and more particularly, to a method for assembling a columnar segment supplied to an assembling preparation position in a predetermined assembling posture by an erector device. The present invention relates to a technique of mounting the wing segment on a pedestal and horizontally slidably moving it laterally by an elector device and an auxiliary movement driving mechanism, and assembling the wing segment at an assembly position between upper and lower wing segments.

[0002]

2. Description of the Related Art Conventionally, a general shield machine includes a cylindrical body member, a cutter head, a plurality of shield jacks, an erector device, and the like, and moves forward with a plurality of shield jacks while excavating a tunnel with the cutter head. Attach the segments to the inner surface of the excavated tunnel using an erector device. Normally, a segment for one ring is assembled each time one ring is excavated, and by repeating this process, a tunnel whose inner surface is lining with a segment is constructed (shield construction method).

In a conventional shield machine, various tunnels having a circular, elliptical or rectangular cross section are excavated by changing the structure of a body member, a cutter head, an erector device, etc. In recent years, for example, tunnels of irregular cross-sections with a wide cross section, such as a plurality of tunnels with a circular cross-section partially wrapped on the left and right, have been dug, and the inner side of the tunnel has been dug. A multiple shield excavator for assembling a segment into a machine has been put to practical use.

[0004] This type of multiple shield excavator basically includes a common trunk member having an irregular cross section, a plurality of carter heads and an erector device, and a plurality of arc portions of a tunnel excavated by a plurality of cutter heads. At the inner surface of the tunnel, arc segments are respectively assembled by a plurality of erector devices, and wing-shaped wing segments are assembled by an erector device at the boundary between adjacent arc portions at the upper and lower portions of the tunnel, and between the upper and lower wing segments. A columnar segment is assembled with an erector device.

[0005] By the way, Japanese Patent No. 2714136 and Japanese Utility Model Publication No. 2714136 disclose an erector device of a double shield excavator.
Japanese Patent No. 30959 discloses a ring member 201 rotatably supported and a ring member, as shown in FIGS.
A swivel mechanism for swiveling 201, an arm member 202 fixed to the rear of the ring member 201, a guide rod 203 guided by the arm member 202 in a vertical direction perpendicular to the tunnel axis, and a guide rod 203. A pressing member 204 fixed to the distal end portion, a telescopic mechanism 206 including a hydraulic jack 205 for driving the pressing member 204 to expand and contract, and segments 215 to 218 joined to the pressing member 204 by pins around the tunnel axis.
There are described two sets of left and right single-arm type elector devices 200A and 200B each provided with a slider 207 capable of holding the slider, a turning mechanism 209 including a hydraulic jack 208 for turning the slider 207, and the like.

When assembling the segments 215 to 218 for one ring into the tunnel 210 excavated by the double shield excavator, first, the lower wing segment 217 is assembled to the lower boundary 213 of the tunnel 210 by the erector device 200B. After that, the plurality of arc segments 215 are respectively assembled from the lower side to the inner surfaces of the left and right arc portions 211 of the tunnel 210 by the erector devices 200A and 200B, and then the upper wing is formed on the upper boundary portion 212 of the tunnel 210 by the erector device 200A. segment
216, and finally, the upper and lower wing segments 216,
The columnar segment 218 is mounted between the positions 217 (the mounting position).

[0007] The columnar segment 21 is
When assembling 8, as shown in FIG.
Slide the horizontal column segment 218 under the 200A into the slider 20
After being gripped with 7, the columnar segments as shown in FIG.
218 is turned to the mounting position side, and as shown in FIG.
The columnar segments 218 are supplied to the assembly preparation position on the side of the assembly position in a predetermined vertical assembly posture. In this state, if the expansion and contraction direction of the expansion and contraction mechanism 206 becomes the left and right direction, the extension and contraction mechanism 206 is then driven to extend and horizontally move the columnar segment 218 at the assembly preparation position, as shown in FIG. So that the upper and lower wing segments 216,217
Can be assembled between

By the way, in order to be able to assemble a columnar segment between the upper and lower wing segments attached to the tunnel, an upper wing segment which is likely to hang down by its own weight is pushed up to expand the interval between the upper and lower wing segments. A segment lifting device capable of forming a gap between upper and lower wing segments and a columnar segment to be assembled has been put to practical use. The gap formed between the upper and lower wing segments and the columnar segments by using the segment lifting device is several mm (3 mm to 3 mm) in total.
The limit is about 4 mm).

For example, in the push-up device disclosed in Japanese Patent Publication No. Hei 6-31557, a guide rod is supported by the shield machine in such a manner as to be movable in the axial direction of the tunnel (front-rear direction), and is attached to the rear end of the guide rod. It has a vertical push-up jack, a slide jack that drives the push-up jack to move back and forth, etc.When assembling the arc segment and the wing segment with the elector device, the push-up jack is retracted to the front evacuation position and In order not to disturb the assembling, the push-up jack is moved rearward to be positioned below the upper segment before assembling the columnar segments, and the push-up jack is driven to push up the upper wing segment.

[0010]

In the prior art, even if a segment lifting device is used, a gap of only several mm can be formed between the upper and lower wing segments and the columnar segments. Since the columnar segment must be assembled between the segments only with the erector device, a delicate drive operation of the erector device is required to assemble it reliably, and it is extremely difficult to assemble the columnar segment. There's a problem.

In particular, since the columnar segment must be horizontally supported in a cantilever manner via a guide rod or the like and moved laterally from the assembly preparation position by the erector device, for example, the column segment may be bent by the guide rod or the like. By simply extending and driving the telescopic mechanism, the columnar segment cannot be moved horizontally. Therefore, the telescopic mechanism, the turning mechanism, and the rotating mechanism are delicately driven and operated to move the columnar segment from the assembly preparation position. It must be moved horizontally and assembled between the upper and lower wing segments.

Further, since the columnar segments are supported in a cantilever manner horizontally only by the erector device, there is a high possibility that the columnar segments will oscillate, and the columnar segments will be assembled between the upper and lower wing segments until the oscillations stop. I can not attach it. As described above, in the conventional technique, it is very difficult to assemble the columnar segments, and it takes a lot of time, the work load for assembling the columnar segments becomes extremely large, and the work efficiency is significantly reduced. In addition, there is also a problem that it is difficult to adjust the height position and the posture of the columnar segments and supply them to the assembly preparation position in a predetermined assembly posture.

Further, as described above, it is difficult to move the columnar segments horizontally and simply and smoothly, and the gap between the upper and lower wing segments and the columnar segments is only a few tens in total. Therefore, there is a possibility that the columnar segment may collide with the wing segment. In this case, a large force acts between the columnar segment and the wing segment, and the segment may be damaged.

An object of the present invention is to provide a method and an apparatus for assembling a columnar segment of a multiple shield excavator which can easily and surely assemble a columnar segment between upper and lower wing segments attached to a tunnel. To provide.

[0015]

A method of assembling a columnar segment of a multiple shield excavator according to claim 1 is a method of assembling a columnar segment between upper and lower wing segments attached to a tunnel excavated by a multiple shield excavator. In a method of assembling a segment, the columnar segment is gripped by an erector device,
A first step of supplying a predetermined assembling posture to an assembling preparation position on the side of the gap between the upper and lower wing segments, and placing the columnar segment supplied to the assembling preparation position on a pedestal via the pedestal A second step in which a height position can be set; and a columnar segment placed on the pedestal is horizontally slid horizontally by an elector device and an auxiliary movement driving mechanism, and is assembled at an assembly position between upper and lower wing segments. And a third step of attaching.

In this assembling method, in the first step,
The columnar segment is gripped by the erector device and supplied to an assembly preparation position on the side of the gap between the upper and lower wing segments in a predetermined installation posture. Next, in the second step,
The columnar segment supplied to the assembling preparation position is placed on the receiving table, and the height position is set via the receiving table. Thereafter, in a third step, the columnar segments placed on the receiving table are horizontally slid and moved laterally by the erector device and the auxiliary movement driving mechanism, and are assembled at an assembly position between the upper and lower wing segments.

Here, in the second step, the height position of the columnar segment is set via the receiving stand such that the columnar segment having a predetermined mounting posture is located at a height position corresponding to between the upper and lower wing segments. I do. Before placing the columnar segments on the pedestal, the height of the pedestal may be set. However, when the columnar segment is placed on the pedestal, the pedestal bends due to the load, and the height position is lowered. If the height position is lowered in the second step, the height position of the columnar segment is changed via the pedestal. Set.

According to the method of assembling the columnar segments of the multiple shield excavator, the columnar segments are gripped by the erector device, brought into a predetermined assembling posture, and positioned by being brought into contact with the pedestal, thereby assembling. It can be easily supplied to the preparation position, and then the columnar segment placed on the pedestal is slid and guided on the pedestal to be surely and smoothly slid by the erector device and the auxiliary movement drive mechanism. it can. Before sliding the columnar segment,
Since the height position of the columnar segments can be set via the pedestal, the sliding columnar segments can be easily and reliably inserted into the mounting position between the upper and lower wing segments without colliding with the upper and lower wing segments. be able to.

According to a second aspect of the present invention, in the method for assembling a columnar segment of a multiple shield excavator according to the first aspect of the present invention, in the third step, the columnar segment that slides and slides is received by a positioning mechanism. It is characterized by positioning at a position. Therefore, the columnar segment slid laterally from the assembly preparation position can be easily assembled to the assembly position between the upper and lower wing segments.

According to a third aspect of the present invention, there is provided a column type segment assembling apparatus for assembling a columnar segment between upper and lower wing segments mounted on a tunnel excavated by a multiple type shielded excavator. Gripping the columnar segment, an erector device capable of supplying a predetermined mounting posture to an assembly preparation position on the side of the gap between the upper and lower wing segments, and a columnar segment supplied to the assembly preparation position. A receiving table for mounting, and an auxiliary movement driving mechanism capable of horizontally sliding the columnar segment mounted on the receiving table to the side and mounting the column segment at an installation position between the upper and lower wing segments. It is a feature.

According to the assembling apparatus for the columnar segments of the multiple shield excavator, the columnar segments are gripped by the erector device and brought into a predetermined assembling posture to be positioned by being brought into contact with the pedestal for assembling. It can be easily supplied to the preparation position, and then the columnar segment placed on the pedestal is slid and guided on the pedestal to be surely and smoothly slid by the erector device and the auxiliary movement drive mechanism. Therefore, the columnar segments can be easily and reliably inserted and assembled at an assembly position between the upper and lower wing segments without colliding with the upper and lower wing segments.

According to a fourth aspect of the present invention, there is provided the apparatus for assembling a columnar segment of a multiple shield excavator according to the third aspect of the present invention, wherein the columnar segment is received and moved by an auxiliary moving drive mechanism. A positioning mechanism for positioning at the attachment position is provided. Therefore, the columnar segment slid laterally from the assembly preparation position can be easily assembled to the assembly position between the upper and lower wing segments.

According to a fifth aspect of the present invention, in the apparatus for assembling a column segment of a multiple shield excavator according to the fourth aspect of the present invention, the positioning mechanism includes a receiving portion for receiving the columnar segment, and a shielding portion for shielding the receiving portion. A retreating mechanism for moving the tunnel machine relative to the excavator body in the axial direction of the tunnel. Therefore, when assembling a segment other than the columnar segment with the elector device, the receiving portion may be retracted forward so as not to hinder the assembly, and then the columnar segment may be moved rearward to a position where the columnar segment can be received. it can.

According to a sixth aspect of the present invention, in the column type assembling apparatus for a multiple shield excavator according to the fifth aspect, the positioning mechanism includes an upper receiving portion for receiving an upper portion of the columnar segment, and an upper receiving portion for receiving the upper portion of the columnar segment. It has a lower receiving portion for receiving the lower portion, and an upper retreat moving mechanism and a lower retreat moving mechanism for moving these receiving portions relative to the shield machine body in the axial direction of the tunnel. Things. Therefore, the columnar segments that are slid sideways from the mounting preparation position can be easily mounted at the mounting position between the upper and lower wing segments, and in particular, by providing the upper receiving portion, the columnar segments can be formed. Can reliably be prevented from falling.

According to a seventh aspect of the present invention, there is provided the column segment assembling apparatus of the multiple shield excavator according to any one of the third to sixth aspects, wherein the height position of the pedestal is adjusted. A mechanism is provided. Therefore,
The columnar segment in the assembly preparation position can be slid horizontally to the side and adjusted together with the pedestal by the height position adjusting mechanism to a height position where it can be inserted between the upper and lower wing segments.

According to an eighth aspect of the present invention, in the apparatus for assembling a pillar segment of a multiple shield excavator according to the seventh aspect of the present invention, the pedestal is moved in the tunnel axial direction relative to the shield excavator main body. A cradle evacuation movement mechanism is provided. Therefore, when assembling a segment other than the columnar segment with the elector device, the pedestal is retracted forward so as not to hinder the assembly,
Thereafter, it can be moved backward to a position where the columnar segment in the assembly preparation position can be placed.

[0027]

Embodiments of the present invention will be described below with reference to the drawings. This embodiment is a double shield excavation in which a tunnel having a deformed cross section having a wide left and right width is formed by partially wrapping and joining two tunnels having a circular cross section to the left and right, and a segment is assembled on the inner surface side of the tunnel. It is an example when the present invention is applied to a machine. still,
The front, rear, left and right in the excavation direction will be described as front, rear, left and right.

As shown in FIGS. 1 to 3, the double shield excavator 1 includes a cylindrical body member 2 having a modified cross section, and a pair of right and left cutter heads 3 provided on the front side of the body member 2. A pair of left and right rotation support mechanisms 4 for rotatably supporting the cutter heads 3, a pair of right and left rotation drive mechanisms 5 for driving the pair of cutter heads 3 respectively, and a plurality of shields for excavation. Jack 6 and multiple bent buckles 7
And a pair of left and right screw conveyors 8 for discharging the excavated soil in the chamber 24 to the outside.

Further, the double shield excavator 1 includes two left and right erector devices 10 capable of assembling arc segments Sa on left and right arc portions Ta of the excavated tunnel T, respectively.
a, 10b, a wing segment assembling device 11 for assembling the upper wing segment Sb at the upper boundary Tb of the tunnel T, and upper and lower wing segments Sb, assembling at the upper boundary Tb and the lower boundary Tc of the tunnel T. Sc
A columnar segment assembling apparatus 100 (FIGS. 7, 8, 11, and 12) peculiar to the present application for assembling a columnar segment Sd between
And a pair of right and left rear working tables 12 and a pair of right and left perfect circle holding devices 13 for holding the assembled arc segments Sa in a perfect circle.

The body member 2 includes a front body 20, a rear body 21, and a middle bend portion 2 that connects the front body 20 and the rear body 21 so as to be capable of being folded in the middle.
And 2. A partition wall 23 is fixed to an inner front end portion of the front trunk 20, and a portion surrounded by the front trunk 20 on the front side of the partition wall 23 is a chamber 24 capable of collecting excavated soil excavated by the cutter head 3. A tail seal 28 is provided at the rear end of the rear trunk 21. The partition 23
Is formed with an injection port 2, and the injection pipe 2 is formed in the injection port 26.
5 is connected. A fixed stirring blade 27 protruding toward the chamber 24 is fixed to the front end of the partition 23.

As shown in FIGS. 1 and 2, each of the cutter heads 3 includes a center support portion 30, a cutter plate 31 fixed to the front side of the center support portion 30, and four blades extending radially outward from the center support portion 30. , Spokes 32, 33, a connecting frame 35 connecting radially central portions of two adjacent spokes 32, 33, short spokes 34 extending radially outward from a circumferential central portion of the connecting frame 35, and three spokes 3
An arc frame 36 connecting the outer peripheral portions of the spokes 2 to 34, a large number of cutter bits 37a to 37c attached to the front surface of the cutter plate 31 and the spokes 32 to 34, a copy cutter 38 provided on the outer peripheral portion of the spoke 32, and the spokes. It is composed of stirring blades 39 and the like fixed to the rear portions of 32 and 33.

As shown in FIG. 2, in the lap area at the intermediate portion of the pair of cutter heads 3, between the two spokes 32, 33 of one cutter head 3 having a large space,
One set of three spokes 32 of the other cutter head 3
34, the pair of cutter heads 3
Synchronously rotated by the pair of rotary drive mechanisms 5, a tunnel T having a wide and irregular cross section is excavated right and left. In addition, spoke 3
3 has an inlet 33 for injecting the mud into the ground in front.
a is provided.

Each rotation support mechanism 4 is, as shown in FIG.
It has a shaft member 40 extending rearward from the central support portion 30 of the cutter head 3, and two front and rear rotating supports 41 and 42 for rotatably and internally fitting the shaft member 40. The rotating support 41 is fixedly fitted in the partition 23, and the rotating support 42 is fixedly fitted in a box-shaped frame 43 fixed to the rear of the partition 23. Swivel joint 4 at the rear end of shaft member 40
4 are provided, and through the swivel joint 44,
Hydraulic pressure is supplied to the hydraulic cylinder of the copy cutter 38 through the shaft member 40 and a passage in the cutter head 3, and mud is supplied to the injection port 33a.

Each rotation drive mechanism 5 has one or a plurality of electric motors 45, and the electric motor 45 is configured to rotationally drive the cutter head 3 together with the shaft member 40. In order to transmit the driving force of the electric motor 45 to the shaft member 40,
A shaft member 40 is provided between the partition wall 23 and the box-shaped frame 43.
Among them, a gear member 47 is fixed between the rotary supports 41 and 42. The electric motor 45 is fixed to the box-shaped frame 43 so as to face forward, and a drive gear 46 meshing with the gear member 47 is fixed to an output portion thereof.

The plurality of shield jacks 6 are shown in FIGS.
As shown in the figure, the rear end is arranged along the inner surface of the body member 2 and is fixed to the inner surface of the front end of the rear body 21 so as to be bent.
2 is fixed to the annular frame 50 including the second through-hole.
When the spreader 6b is fixed to the rear end of the output portion 6a of each shield jack 6, and the plurality of shield jacks 6 are driven, the assembled segments Sa to Sc are pushed,
Thrust is obtained by the reaction force. The shield jack 6 whose spreader 6b is hatched in FIG. 3 is used as a shield jack for correcting rolling.

The plurality of middle folding jacks 7 are disposed symmetrically on the left and right sides in the rear portion of the front trunk 20, and each middle folding jack 7 is
Are rotatably connected to an annular frame 50 and a mounting member 51 fixed to the front body 20, respectively. Shrink the right-side folded jack 7 or the left-side folded jack 7
Can be excavated to excavate a right-turning tunnel T by swinging to the right. Also, by contracting the middle bent jack 7 on the left or extending the middle bent jack 7 on the right, it can be swung to the left to turn left. Tunnel T can be excavated.

The distal end of each screw conveyor 8 is connected to the partition wall 23 below the rotary support 41 of the rotary support mechanism 4 and faces the chamber 24, from which the side of the column member 53 fixed to the annular frame 50. Through the ring member 60 of the erector device 10a (10b), extends obliquely upward and rearward, and the rear end thereof is disposed on the rear work table 12.

The following describes the elector devices 10a and 10b. However, since the two left and right erector devices 10a and 10b have the same structure, the left erector device 10a will be described, and the right erector device 10b will be denoted by the same reference numerals as the left erector device 10a and will not be described. I do.

As shown in FIG. 3 to FIG.
Reference numeral 0a denotes a ring member 60, a turning mechanism 61 for turning the ring member 60, an arm member 62 fixed to the ring member 60, and a pair of guides for the arm member 62 in a predetermined direction in a vertical plane perpendicular to the tunnel axis. A pair of front and rear guide rods 63, each of which is guided and supported via a member 63a, a pressing member 64 fixed to the distal end of the guide rod 63, a telescopic mechanism 65 for driving the pressing member 64 to expand and contract, and a pressing member 64
And a slider 67 which is pin-coupled around the tunnel axis direction (front-rear direction) and is capable of gripping the segments Sa and Sb, a rotating mechanism 68 for rotating the slider 67, and the like.

In the turning mechanism 61, the annular frame 5
0, a plurality of rollers 70 are rotatably mounted via brackets 70a.
Is rotatably supported, and is rotationally driven by a rotary drive mechanism (not shown) having a hydraulic motor. The expansion / contraction mechanism 65 has a hydraulic jack 66, a main body of the hydraulic jack 66 is fixed to the arm member 62, and a distal end of an output section of the hydraulic jack 66 is a pressing member 64.
It is connected to. The turning mechanism 68 has a hydraulic jack 69, and both ends of the hydraulic jack 69 are
And the connecting portions 64a, 67a of the slider 67 are rotatably connected respectively.

The slider 67 sandwiches the slider body 72 pin-connected to the pressing member 64, the pin connecting member 73 supported by the slider body 72 via the guide rod 72a so as to be movable in the front-rear direction, and the guide rod 72a. And a pair of pressing members 74 and pin connecting members 73
And a sliding jack 75 for integrally moving the pair of pressing members 74 in the front-rear direction and a retracting jack 76 for driving the pin connecting member 73 to expand and contract. Segment Sa, S
The brackets b and Sd are pin-coupled to the pin coupling member 73, and the retraction jack 76 is retracted and driven, so that the inner surfaces of the segments Sa and Sb are pressed by the pair of pressing members 74, and the segments Sa, Sb and Sd are separated. Hold.

Here, the left erector device 10a holds and assembles the arc segment Sa on the left arc portion Ta of the tunnel T, and also includes a wing segment assembling device 11 and a columnar segment assembling device which will be described next. Wing segment assembling device 1
1, the upper wing segment Sb is assembled, and the columnar segment assembling apparatus 100 assembles the columnar segment Sd. On the other hand, the right erector device 10b attaches the arc segment Sa to the right arc portion Ta of the tunnel T, and attaches the lower wing segment S to the lower boundary Tc.
c can be independently assembled.

The wing segment assembling device 11
As shown in FIGS. 3 and 7 to 10, the wing segment assembling device 11 grips the upper wing segment Sb and sets a predetermined assembling posture at the lower delivery position of the upper boundary portion Tb of the tunnel T. And the upper wing segment Sb supplied to the delivery position is received from the erector device 10a and raised to assemble the upper wing segment Sb to the upper boundary portion Tb.

The elevating assembly device 15 includes an elevating platform 80 capable of mounting and supporting the upper wing segment Sb in the predetermined assembling posture, an elevating drive mechanism 81 for driving the elevating platform 80 up and down, and an elevating platform 80. It is guided back and forth between an operation start position (shown by a dashed line in FIG. 10) near the transfer position and a retreat position (shown by a solid line in FIG. 10) retracted in the tunnel excavation direction side (front side) from the operation start position. And a front-rear drive mechanism 83 that drives the elevator 80 to move back and forth.

A column member 85 suspended from the lower end of the annular frame 50 is provided substantially between the ring members 60 of the two left and right erector devices 10a and 10b, and a guide support member 86 is fixed to the top thereof. , Guide support member 86
Are connected to the left and right pillar members 53 via a horizontal member 88. The elevating table 80 is provided on the rear upper side of the horizontal member 88 via an elevating drive mechanism 81. Elevating drive mechanism 81
Has a pair of front and rear hydraulic cylinders 90 attached to the rear part of a horizontal member 88 in a vertically inserted manner, and a lifting platform 80 is attached to the upper end of the piston rod of these hydraulic cylinders 90. By driving 90 synchronously,
The lift 80 is driven up and down.

A guide hole 86a is formed at the center in the vertical direction of the guide support member 86 in the front-rear direction.
2 is configured to guide the lifting table 80 back and forth by inserting the horizontal member 88 into the guide hole 86a and slidably guiding it back and forth. The front-rear drive mechanism 83 has a front-rear direction hydraulic cylinder 91 attached to a guide support member 86, and its piston rod is connected to a horizontal member 88. The guide support member 86 is formed with two upper and lower grooves 86b which communicate with the guide holes 86a and open to the outside. The upper and lower grooves 86b are oriented in the front-rear direction. It can move back and forth and does not interfere with the guide support member 86.

As shown in FIGS. 19 and 21, the lifting platform 80 is provided with an overturning prevention positioning mechanism 92 (which can prevent the upper wing segment Sb from overturning and position the upper wing segment Sb in the left-right direction). (Corresponding to a fall prevention mechanism and a left / right positioning mechanism). The overturn prevention positioning mechanism 92 is, for example, pivotally supported on the left and right ends of the lift table 80 around a left-right direction axis, and can be driven by a hydraulic actuator (not shown). 93 and a pair of small hydraulic cylinders 9 respectively attached to the tip portions of the pair of support pieces 93.
4

In the overturn prevention positioning mechanism 92, the upper wing segment Sb is pushed by the pushing portion 94a at the tip end by driving the piston rod 94a of the hydraulic cylinder 94 to extend by driving the one support piece 93 upright. The position in the left and right direction can be determined, and the upper wing segments Sb can be prevented from falling by pushing the support pieces 93 up and holding the push wings 94a of the hydraulic cylinders 94.

Next, the columnar segment assembling apparatus 100 will be described. As shown in FIG. 7, FIG. 8, FIG. 11, and FIG. 12, the columnar segment assembling apparatus 100 grips the columnar segment Sd and moves to a mounting preparation position on the left side of the gap between the upper and lower wing segments Sb and Sc. The left-side erector device 10a which can be supplied in a predetermined mounting posture, a receiving table 101 on which the columnar segment Sd supplied to the mounting preparation position is mounted, and the receiving table 101 are attached to the annular frame 50 (the shield excavator main body). ), And a column evacuation movement mechanism 102 for moving the columnar segment Sd placed on the table 101 horizontally to the right to move in the tunnel axis direction (front-rear direction) relative to , Sc, an auxiliary movement drive mechanism 103 that can be installed at an installation position between the column and the columnar segment Sd that is driven to move rightward by the erector device 10a and the auxiliary movement drive mechanism 103. It is composed of a positioning mechanism 104 for positioning at the mounting position.

The pedestal 101 has a lower wing segment Sc
It is arranged near the left inner surface side of. This cradle 101 has
It has a pair of horizontal mounting plates 110 arranged in front and back, and these mounting plates 110 have a left-right length longer than the upper surface of the lower wing segment Sc, and a lower wing segment S together.
c, and the upper surface of the lower wing segment Sc is configured to be substantially flush with the upper surface of the lower wing segment Sc.

The pedestal 101 is a guide rod oriented in the front-rear direction.
The guide rod 111 is fixed to the rear end of the guide frame 111 and is fixed to the annular frame 50 in the front-rear direction.
2 is slidably inserted inside. That is, the cradle 110
Is a retracted position (shown by a dashed line in FIG. 11) through the guide rod 111 and the guide body 112 on the rear side of the annular frame 50 (a position shown by a solid line in FIG. 11) and in the same front-back position as the annular frame 50. Position), the annular frame 5
It is supported movably back and forth at 0.

The cradle retracting and moving mechanism 102 has a hydraulic cylinder 115 oriented in the front-rear direction. The cylinder body 115a is fixed to the side surface of the guide body 112, and the rear end of the piston rod 115b extending rearward is connected to the cradle. Hydraulic cylinder connected to 101
By extending and retracting the 115, the receiving table 101 can be driven to move forward and backward relative to the annular frame 50, and can be switched between the operating position and the retracted position.

The auxiliary movement driving mechanism 103 includes a jack body 121a attached to a bracket 120 extending diagonally downward and left from the receiving table 101.
Push-in jack is connected so that it can rotate around the longitudinal axis.
121, a link member 122 that is rotatably connected to the receiving table 101 below the mounting plate 110 about the longitudinal axis and extends upward between the pair of mounting plates 110, and a distal end portion of the link member 122. And a pressing roller 123 provided on the link member 12.
The distal end of the output rod 121b of the push-in jack 121 is operatively connected to a middle part in the lengthwise direction of the push-in jack 121.

With the pushing jack 120 contracted,
As shown by a solid line in FIG.
When the push-in jack 121 is driven to extend from this state, the push-in roller 123 rotates clockwise in a rear view together with the link member 122, and the push-in roller 123 pivots in the clockwise direction in rear view. At this time, if the columnar segment Sd rests on the pedestal 101, the lower end of the columnar segment Sd is pushed rightward by the pushing roller 123.

Here, when the columnar segment Sd has a predetermined mounting posture, the direction of expansion and contraction of the hydraulic cylinder 66 of the expansion and contraction mechanism 65 of the erector device 10a becomes horizontal in the horizontal direction, and the hydraulic cylinder 66 is extended and driven together with the pushing jack 121. Thus, the columnar segment Sd can be pushed to the right as a whole and slid horizontally.

The positioning mechanism 104 includes a columnar segment Sd
A lower receiving portion 130 for receiving the lower portion of the columnar segment, an upper receiving portion 140 for receiving the upper portion of the columnar segment Sd, and a lower evacuation for moving these receiving portions 130 and 140 in the front-rear direction relative to the annular frame 50, respectively. It has a moving mechanism 135 and an upper evacuation moving mechanism 145.

The lower receiving portion 130 is provided at the distal end of the output portion of the positioning jack 131 which is disposed near the right inner surface of the lower wing segment Sc and is oriented in the left-right direction. The positioning jack 131 is fixed to the rear end of a guide rod 132 oriented in the front-rear direction.
Is slidably inserted into a guide body 133 fixed to the annular frame 50 in the front-rear direction. That is, the positioning jack 131 is connected to the guide rod 132 and the guide body 13.
3, the ring frame 50 is supported by the ring frame 50 so as to be movable back and forth over an operating position on the rear side of the ring frame 50 and a retracted position at the same front and rear position as the ring frame 50.

The lower evacuation mechanism 135 has a hydraulic cylinder 136 oriented in the front-rear direction. The cylinder main body 136a is fixed to the side surface of the guide 133, and the rear end of the piston rod 136b extending rearward is connected to the guide rod 132. The positioning jack 131 (lower receiving portion 130) is moved in the front-rear direction relative to the annular frame 50 by extending and retracting the hydraulic cylinder 136 and connected to the rear end portion. Can be switched over. still,
The upper receiving portion 140 and the upper retreating and moving mechanism 145 have the same configuration as the lower receiving portion 130 and the lower retreating and moving mechanism 135, and a description thereof will be omitted.

Each rear work table 12 is fixed to a column member 53 and extends rearward. The rear work table 12 is provided with a perfect circle holding device 13. The perfect circle holding device 13 converts the upper half arc segment Sa of the latest one-ring segments Sa to Sc assembled by the erector devices 10a and 10b and the wing segment assembling device 11 into a perfect circle. It is an upper half push-up type perfect circle holding device for holding. still,
Since the perfect circle holding device 13 is an existing one, detailed description is omitted.

Next, a method of assembling the segments Sa to Sd will be described with reference to FIGS.
Note that this assembling method includes an assembling method of the columnar segment unique to the present application.

A tunnel T is formed by a pair of right and left cutter heads 3.
While drilling, advance with multiple shield jacks 6
When the tunnel T for the ring was excavated, the excavation was suspended,
First, the lower wing segment Sc is attached to the lower boundary portion Tc of the tunnel T by the right erector device 10b, and then a plurality of left and right erector devices 10a and 10b are used to attach a plurality of inner surfaces of the left and right circular arc portions Ta of the tunnel T. The arc segments Sa are respectively assembled from below, and finally, the upper wing segment Sb is assembled to the upper boundary portion Tb of the tunnel T by the wing segment assembling device 11.

When assembling the upper wing segment Sb to the upper boundary portion Tb by the wing segment assembling device 11, first, the erector device 10a is operated, and FIG.
As shown in FIG. 3, the upper wing segment Sb conveyed from the outside to the lower side of the
After being gripped by 7, as shown in FIG. 14, the upper wing segment Sb is turned toward the upper boundary portion Tb by the turning mechanism 61 and stopped at a predetermined position shown in FIG.

Here, when the upper wing segment Sb is turned, the elevator 80 is retracted to the retracted position so that the upper wing segment Sb does not interfere with the elevator 80 and the horizontal member 88 of the elevator assembly device 15. Perform in a state where Next, as shown in FIG. 16, the upper wing segment Sb is
Is turned to a predetermined assembly posture, the extension mechanism 65 is driven to extend, and the upper wing segment Sb is supplied to the delivery position shown in FIG. 17 below the upper boundary portion Tb in the predetermined assembly posture and supplied. .

Next, the elevating assembly device 15 is operated, and as shown in FIG.
18 and 19, the elevator 80 is moved backward from the evacuation position to the operation start position together with the carriage 8, and then the elevator 80 at the operation start position is raised by the elevation drive mechanism 81.
As shown by a chain line, the upper wing segment Sb is placed on and supported by the elevating table 80 and received. After that, the connection between the slider 67 of the erector device 10a and the upper wing segment Sb is released, and then the erector device 10a is moved to, for example, an initial position (a position shown in FIG. 13).

Next, as shown in FIG. 21, the pair of support pieces 93 are erected by the tipping prevention positioning mechanism 92, and at least one of the pair of left and right hydraulic cylinders 94 is driven.
The position of the upper wing segment Sb in the left-right direction is determined, and thereafter, the pushing portions 9 of both hydraulic cylinders 94 are moved.
At 4a, the upper wing segment Sb is pressed to prevent falling. In this state, as shown in FIGS. 20 and 21, the upper wing segment Sb is raised together with the lifting platform 80 by the lifting drive mechanism 81, and is assembled to the upper boundary portion Tb. At this time, by opening the hydraulic cylinder 94,
Even when the left and right positions of the upper wing segment Sb are not accurately positioned, the upper wing segment Sb is formed by the end faces of the assembled arc segments Sa on both sides of the upper boundary portion Tb, and slides on the lift 80. While the position in the left-right direction is determined.

After the upper wing segment Sb is assembled to the upper boundary portion Tb, the columnar segment Sd is assembled between the upper and lower wing segments Sb and Sc by the columnar segment assembling apparatus 100. A method for attaching Sd will be described in detail.

First, the left-side erector device 10a is operated, and as shown in FIG. 22, the right side of the laterally-transverse columnar segment Sd conveyed from the outside is gripped by the slider 67, as shown in FIG. 24, the columnar segment Sd is turned by the turning mechanism 61, and as shown in FIG. 24, is supplied to an assembling preparation position on the side of the gap between the upper and lower wing segments Sb and Sc in a predetermined vertically oriented posture. (1st process).

Here, when turning the columnar segment Sd to the assembly preparation position and when assembling the arc segment Sa and the wing segments Sb and Sc, the segments Sa to
Sd or the erector devices 10a and 10b, the receiving table 101, the auxiliary movement drive mechanism 103, and the positioning mechanism 104 are retracted to the retracted position so as not to interfere with each other.
Here, the columnar segment Sd is supplied to the assembling preparation position so that the position of the lower surface of the columnar segment Sd is slightly higher than the upper surface of the lower wing segment Sc, that is, the upper surface of the receiving base 101.

Next, the cradle evacuation moving mechanism 102
101 is moved backward together with the auxiliary movement drive mechanism 103 to switch to the operating position, and the lower receiving section 130 and the upper receiving section 140 are moved by the upper retreating mechanism 135 and the lower retreating mechanism 145 of the positioning mechanism 104. Each is driven backward to switch to the operating position. At that time, the pedestal 101 and the lower receiving portion 130
The center of the upper receiving portion 140 is made to coincide with the vicinity of the center of the wing segments Sb and Sc in the front-rear direction. Thereafter, the columnar segments Sd are slightly swung downward to put the columnar segments Sd supplied to the assembly preparation position on the receiving table 101 as shown in FIG. 25 (second step). In this state, the direction of expansion and contraction by the expansion and contraction mechanism 65 of the erector device 10a is in the horizontal direction.

Here, the height of the upper surface of the pedestal 101 is preset to be approximately the same height or slightly higher than the upper surface of the lower wing segment Sc, and the pedestal 101 moves back and forth at this height position. The height position does not change due to the bending of the pedestal 101 even if the load acts on the columnar segment Sd. Therefore, in this embodiment, it is assumed that the height adjustment of the receiving table 101 is unnecessary.

Next, the expansion mechanism 95 (see FIG. 1)
After the upper wing segment Sb is pushed up to expand the interval between the wing segments Sb and Sc, the lower end of the columnar segment Sd placed on the pedestal 101 is moved to the auxiliary movement driving mechanism.
103, the columnar segment Sd is pushed to the right as a whole and horizontally driven by driving the expansion / contraction mechanism 65 of the erector device 10a in synchronization with the auxiliary movement drive mechanism 103. As shown in FIG. 26, the slide member is slid and inserted between the upper and lower wing segments Sb and Sc.
It is received at 0, positioned at the assembly position, and assembled (third step).

As described above, according to the columnar segment assembling apparatus 100, the columnar segment Sd is gripped and brought into a predetermined mounting posture by the erector apparatus 10a and is brought into contact with the pedestal 101 to perform positioning and assembling. The columnar segment Sd placed on the receiving table 101 can be easily supplied to the preparation position by the auxiliary moving drive mechanism 103.
It can be guided by sliding on the upper part and can be slid horizontally and surely smoothly.

Before the sliding movement of the columnar segment Sd, the height of the columnar segment Sd is set via the pedestal 101, so that the slidingly moving columnar segment Sd collides with the upper and lower wing segments Sb and Sc. Instead, it is possible to easily and reliably insert and assemble them at the assembling positions between them. That is, the work load for assembling the columnar segments Sd is significantly reduced, and the work efficiency can be significantly improved.

The positioning mechanism 104 includes a columnar segment Sd
, An upper receiving portion 140 for receiving the upper portion of the columnar segment Sd, a lower retracting mechanism 135 and an upper retracting mechanism 145 for moving the receiving portions 130 and 140 in the front-rear direction, respectively. Therefore, the columnar segment Sd, which is slid sideways from the assembly preparation position, can be easily assembled at the assembly position between the upper and lower wing segments Sb, Sc,
In particular, by providing the upper receiving portion 140, it is possible to reliably prevent the columnar segment Sd from overturning.

Next, a modification of the columnar segment assembling apparatus 100 of the above embodiment will be described. However, the same components as those in the above embodiment will be described with the same reference numerals.

1] As shown in FIGS. 27 and 28, the columnar segment assembling apparatus 100A includes a receiving base 101A detachably attached to the lower wing segment Sc, and a receiving base 101A.
There is provided an auxiliary movement drive mechanism 103A having a hydraulic cylinder 155 that directly pushes the columnar segment Sd placed on 101 and slides horizontally to the right. It is to be noted that components corresponding to the cradle retreat moving mechanism 102 are omitted.

The pedestal 101A has a lower wing segment Sc
Left and right longer than the upper surface of the lower wing segment S
c, a mounting member 151 extending rearward is fixed to the left end of the mounting plate 150, and the auxiliary movement driving mechanism 10 is mounted on the mounting member 151.
A 3A hydraulic cylinder 155 is mounted facing right.

As a structure for detachably attaching the pedestal 101A to the lower wing segment Sc, for example, a bracket 152 extending to the lower right side is provided on the pedestal 101, and the bracket 152 is inserted into the recess 153 of the lower wing segment Sc. It is configured to be pin-coupled. After the completion of the assembly of the columnar segments Sd, the pedestal 101 is removed from the lower wing segment Sc, and is attached to the lower wing segment Sc one ring forward. Thus, the same cradle
101 shall be used after attaching and detaching it for each ring. The recess 153 may be used when the lower wing segment Sc is gripped by the slider 67 of the erector device 10a.

2] As shown in FIG. 29, in this columnar segment assembling apparatus 100B, the left erector apparatus 1
0a is replaced by the right-side erector device 10b,
The columnar segment Sd is configured to be mounted at the mounting position from the right side. That is, the pedestal 101B is provided near the right inner surface of the lower wing segment Sc, and the auxiliary movement driving mechanism 103B is provided near the right inner surface of the upper wing segment Sb, and the upper and lower hydraulic jacks 131B of the positioning mechanism 104B are provided. The receiving portions 140B and 130B are provided near the left inner side of the upper and lower wing segments Sb and Sc.

3] As shown in FIG. 30, a height position adjusting mechanism 160 for adjusting the height position of the receiving table 101A may be provided.
In this case, for example, in the first modification, the height position adjusting mechanism 160 has a hydraulic jack 161 and has one end connected to the arc segment Sa and the other end connected to the pedestal 101A, By driving the hydraulic jack 161 to expand and contract, the pedestal 101A may be moved up and down along the inner surface of the wing segment Sc to adjust the height position of the columnar segment Sd. That is, the columnar segment Sd can be slid horizontally to the side, and can be reliably adjusted to a height position at which it can be inserted between the upper and lower wing segments Sb, Sc. In addition, as the height position adjusting mechanism for adjusting the height position of the cradle, various means such as raising and lowering the mounting plate with respect to the cradle main body of the cradle by a screw mechanism or a hydraulic cylinder can be applied. In.

4) A low-friction lubricant (eg, Teflon, ultra-high polymer resin, etc.) may be applied to the upper surface of the pedestal. Thereby, when the columnar segment Sd placed on the receiving table is horizontally slid and moved by the erector device and the auxiliary movement driving mechanism, the columnar segment Sd easily slides on the receiving table, and the sliding movement of the columnar segment Sd is smoothly performed. Can be done.

5) In the positioning mechanism, a plurality of receiving portions may be provided on each of the upper and lower sides. In this case, a plurality of receiving portions may be provided in an intermediate portion other than the rear end portion of the guide rod. For example, when providing two receiving portions, one of them is attached to the rear end of the guide rod, and the other is attached to the middle,
When both receiving portions are switched to the operating position, the wing segments Sb and Sc are configured to be located forward and backward with respect to the vicinity of the center in the longitudinal direction.

6) In the positioning mechanism, the guide body is pin-connected to the shield machine and the hydraulic jack is used.
The direction of the guide rod together with the guide body may be configured to be adjustable in the pitching direction or the yawing direction.

7] The columnar segment assembling apparatus 100C shown in FIGS. 31 and 32 grips the columnar segment Sd, and moves the predetermined interval between the upper and lower wing segments Sb and Sc to a mounting preparation position on the left side of the gap. The left-side erector device 10a which can be supplied in the following manner, and the columnar segment Sd at the assembly preparation position are horizontally slid to the right so as to be assembled at the assembly position between the upper and lower wing segments Sb and Sc. A movement drive mechanism 103C, a positioning mechanism 104 for receiving the columnar segment Sd that is driven to move rightward by the erector device 10a and the auxiliary movement drive mechanism 103C, and positioning the same at the assembly position. In the columnar segment assembling apparatus 100 of the embodiment, the pedestal 101 is omitted and the auxiliary movement driving mechanism 103 is changed.

The auxiliary movement driving mechanism 103C has a pair of front and rear pushing jacks 170 disposed on the upper left side of the lower wing segment Sc. The pushing jacks 170 are turned rightward, and the rear pushing jack 170 is moved forward and backward. The guide rod 171 is fixed to the rear end of the guide rod 171 in the direction, and the front pushing jack 170 is fixed in the middle of the guide rod 171. The guide rod 171 is fixed to the annular frame 50 in the front-rear direction. Is slidably inserted into the inside.

A hydraulic cylinder 173 is connected to the guide body 172 in a rearward direction, and the rear end of the piston rod 173a is connected to the rear end of the guide rod 171. By driving the hydraulic cylinder 173, one pair is formed. 32 can be switched between an operating position indicated by a solid line in FIG. 32 and a retracted position indicated by an imaginary line (the rear pushing jack 170 is indicated by an imaginary line).

In the positioning mechanism 104, a pair of positioning jacks 131 are fixed to the guide rod 132 in correspondence with the pair of pushing jacks 170. In addition, the guide members 133 of the auxiliary movement drive mechanism 103C and the positioning mechanism 104,
The slit 172 is formed in the 172 so that the pushing jack 170 and the positioning jack 131 that are retracted do not interfere with each other. In addition, left and right 1 pushing up the upper wing segment Sb
A pair of push-up jacks 175 are provided so as to be switchable between front and rear positions.

In the method of assembling the columnar segment Sd, first, the columnar segment Sd is gripped by the left erector device 10a, and as shown by the solid line in FIG. 31, the left side of the gap between the upper and lower wing segments Sb and Sc is set. Is supplied in a predetermined mounting posture to the mounting preparation position. Here, the height position of the columnar segment Sd supplied to the assembly preparation position is finely adjusted by the erector device 10a, and the columnar segment Sd is positioned right beside the assembly position between the upper and lower wing segments Sb and Sc.

After the columnar segments Sd are supplied to the assembly preparation position, the pair of positioning jacks 131 and the push-in jacks 170 are switched to the operating position, and then the columnar segments Sd at the assembly preparation position are moved to the erector device 10a and the auxiliary movement drive. Slide horizontally to the side (right side) by mechanism 103C,
As shown by a chain line in FIG. 31, it is assembled at an assembly position between the upper and lower wing segments Sb and Sc.

8] In the columnar segment assembling apparatus 100D shown in FIGS. 33 and 34, the auxiliary movement driving mechanism 103D has a pair of front and rear pushing jacks 180, which are fixed to the guide rod 181. The guide rod 181 is slidably inserted into the guide body 182. The guide body 182 is fixed to the upper right end of the arc-shaped member 183, and the arc-shaped member 183 is detachably attached to the segments Sa and Sc. Then, the pair of pushing jacks 180 together with the guide rod 181 can be switched between an operating position indicated by a solid line in FIG. 34 and a retracted position (the front pushing jack 170 is indicated by a virtual line) indicated by a virtual line in FIG. is there.

9] Column-segment assembling apparatus 10 shown in FIG.
0E slides the right erector device 10b and the columnar segment Sd at the assembly preparation position horizontally to the left,
An auxiliary movement drive mechanism 103E that can be installed at an installation position between the upper and lower wing segments Sb and Sc, and a positioning mechanism
Basically, in the columnar segment assembling apparatus 100B shown in FIG. 29, the pedestal 101B is omitted, the auxiliary movement drive mechanism 103B is changed, and the columnar segment Sd is inserted between the wing segments Sb and Sc from the right side. It is designed to be assembled. The auxiliary movement driving mechanism 103E has basically the same configuration as the auxiliary movement driving mechanism 103D in FIG.

10] The columnar segment assembling apparatus 100F shown in FIG. 36 and FIG.
0E is a modification of the auxiliary movement drive mechanism 103E. That is, the auxiliary movement driving mechanism 103F is basically similar to the auxiliary movement driving mechanism 103E in the pair of pushing jacks 190.
, Guide rod 191, guide body 192, hydraulic jack 193
To the left columnar body 13 of the upper half-expanded perfect circle holding device 13.
a. In other words, with the perfect circle holding device 13 positioned behind the assembly position, the guide rod 19
1 is extended forward to switch to the operating position to enable use. Note that the same reference numerals as in FIG. 32 denote the positioning mechanism 104, and a description thereof will be omitted.

11] The assembling / lowering assembling device 15 may not be used, that is, may be omitted. For example, the upper wing segment Sb may be attached to the upper boundary portion Tb using only the erector device 10a. In addition, various erector devices other than the erector devices 10a and 10b can be applied.

12] A twin shield excavator for excavating a tunnel having a deformed cross section having a wide left and right width in which two tunnels having an elliptical cross section are partially wrapped to the right and left and joined, and assembling a segment on the inner surface of the tunnel. The present invention may be applied to However, it is necessary to increase the amount of expansion and contraction of the sliders of the erector devices 10a and 10b or to apply another erector device.

13] Not limited to the twin shield excavator
The present invention can be applied to a multiple shield excavator having more than two reams. However, if it is an n-type, an n-type erector device and an (n-1) cradle, an auxiliary movement drive mechanism, a positioning mechanism, and the like are required between adjacent erector devices.

14] Note that the columnar segment assembling apparatus according to the above embodiment is merely an example, and a columnar segment assembling apparatus in which various modifications are added without departing from the spirit of the present invention. Sometimes.

[0097]

According to the method of assembling the columnar segments of the multiple shield excavator according to the first aspect of the present invention, the columnar segments are gripped by the erector device and brought into a predetermined assembling posture to abut on the cradle. It can be positioned and easily supplied to the assembly preparation position, and then, by the erector device and the auxiliary movement drive mechanism, the columnar segment placed on the pedestal is slid and guided on the pedestal to ensure horizontal and reliable and smooth operation. Can be slid. Before the columnar segments are slid, the height position of the columnar segments can be set via the pedestal, so that the sliding columnar segments do not collide with the upper and lower wing segments, and an assembling position between them is provided. Can be easily and reliably inserted and assembled. That is, the work load for assembling the columnar segments can be significantly reduced, and the work efficiency can be significantly improved.

According to the method of assembling the columnar segments of the multiple shield excavator according to the second aspect, in the third step, the columnar segments that slide are received by the positioning mechanism and are positioned at the assembling position. The columnar segments that are slid sideways from the mounting preparation position can be easily mounted at the mounting position between the upper and lower wing segments. The other effects are the same as those of the first aspect.

According to the apparatus for assembling a columnar segment of a multiple shield excavator according to the third aspect of the present invention,
The columnar segment can be positioned by grasping the columnar segment and bringing the columnar segment into a predetermined assembling posture and abutting against the pedestal, and can be easily supplied to an assembling preparation position. Since the guide can be slid and guided on the pedestal to slide horizontally and reliably and smoothly, the columnar segments can be easily and reliably inserted into the assembly position between them without colliding with the upper and lower wing segments. Can be assembled. That is, the work load for assembling the columnar segments can be significantly reduced, and the work efficiency can be significantly improved.

According to the apparatus for assembling a columnar segment of a multiple shield excavator according to a fourth aspect of the present invention, the columnar segment which is driven and moved by the erector device and the auxiliary moving drive mechanism is received and positioned at the mounting position. Since the mechanism is provided, the columnar segments that are slid sideways from the assembly preparation position can be easily assembled to the assembly position between the upper and lower wing segments. The other effects are the same as those of the third aspect.

According to the apparatus for assembling a column segment of a multiple shield excavator according to claim 5, the positioning mechanism comprises: a receiving portion for receiving the columnar segment; Since it has a retracting movement mechanism for relatively moving in the tunnel axis direction, when assembling segments other than the columnar segments with the erector device, the receiving portion is retracted forward so as not to interfere with the assembly, Thereafter, the columnar segment can be moved backward to a position where it can be received. The other effects are the same as those of the fourth aspect.

According to the apparatus for assembling a column segment of a multiple shield excavator according to claim 6, the positioning mechanism includes an upper receiving portion for receiving an upper portion of the columnar segment, and a lower receiving portion for receiving a lower portion of the columnar segment. Since it has a stopping portion and an upper retreat moving mechanism and a lower retreat moving mechanism for moving these receiving portions relative to the shield machine body in the axial direction of the tunnel, respectively, they slide laterally from the assembly preparation position. The columnar segment to be moved can be easily mounted at the mounting position between the upper and lower wing segments, and in particular, by providing the upper receiving portion, it is possible to reliably prevent the columnar segment from tipping over. The other effects are the same as those of the fifth aspect.

According to the column segment assembling apparatus of the multiple shield excavator according to the seventh aspect, since the height position adjusting mechanism for adjusting the height position of the pedestal is provided, the columnar segment at the assembly preparation position is provided. Can be adjusted together with the pedestal by a height position adjusting mechanism to a height position which can be slid horizontally to the side and inserted between the upper and lower wing segments. In addition, the same effect as any one of claims 3 to 6 can be obtained.

According to the apparatus for assembling a column segment of a multiple shield excavator according to the eighth aspect, a cradle retreat moving mechanism for moving the cradle relative to the shield excavator body in the axial direction of the tunnel. Therefore, when assembling a segment other than the columnar segment with the erector device, the pedestal is retracted forward so as not to hinder the assembling, and thereafter, a position where the columnar segment at the assembling preparation position can be placed. Can be moved backward. The other effects are the same as those of the seventh aspect.

[Brief description of the drawings]

FIG. 1 is a vertical cross-sectional view of a double shield excavator according to an embodiment of the present invention.

FIG. 2 is a front view of a double shield excavator.

FIG. 3 is a rear view of the double shield excavator.

FIG. 4 is a rear view of a main part including an erector device of the double shield excavator.

FIG. 5 is a longitudinal sectional view of a main part including an erector device of the double shield excavator.

FIG. 6 is a sectional view taken along line VI-VI of FIG. 4;

FIG. 7 is a rear view including the wing segment assembling apparatus and the columnar segment assembling apparatus of the double shield excavator.

FIG. 8 is a longitudinal sectional view including a wing segment assembling apparatus and a columnar segment assembling apparatus of the double shield excavator.

FIG. 9 is a rear view of a main part of the elevating device of the assembling device.

FIG. 10 is a vertical sectional view of a main part of a lifting device of the assembling device.

FIG. 11 is a sectional view taken along line XI-XI of FIG. 8;

FIG. 12 is a view taken in the direction of arrow XII in FIG. 11;

FIG. 13 is a sectional view of an assembling device (wing segment gripping).

FIG. 14 is a sectional view of an assembling device (wing segment turning).

FIG. 15 is a sectional view of an assembling device (wing segment turning).

FIG. 16: Assembly device (wing segment turning stop)
FIG.

FIG. 17 is a rear view of a main part of an assembling device (wing segment delivery).

FIG. 18 is a longitudinal sectional view of a main part of an assembling device (wing segment delivery).

FIG. 19 is a rear view of a main part of an assembling device (wing segment assembling).

FIG. 20 is a longitudinal sectional view of a main part of an assembling device (wing segment assembling).

FIG. 21 is an enlarged view of a main part of FIG. 19;

FIG. 22 is a rear view of the assembling device (holding the columnar segment).

FIG. 23 is a rear view of the assembling device (column-segment turning).

FIG. 24 is a rear view of the assembling device (column-segment turning stop).

FIG. 25 is an enlarged rear view of the assembling device (preparation for assembling the columnar segment).

FIG. 26 is an enlarged rear view of the assembling device (post-column segment assembling completed).

FIG. 27 is a rear view of a double shield excavator including a columnar segment assembling apparatus according to a modified embodiment.

28 is a view as viewed in the direction of the arrow XXVIII in FIG. 27.

FIG. 29 is a rear view of a twin shield machine including a columnar segment assembling apparatus according to a modification.

FIG. 30 is a main part rear view of the columnar segment assembling apparatus according to the modified embodiment.

FIG. 31 is a rear view of the columnar segment assembling apparatus according to the modified embodiment.

FIG. 32 is a plan view of a main part of the columnar segment assembling apparatus of FIG. 31.

FIG. 33 is a rear view of the columnar segment assembling apparatus according to the modified embodiment.

FIG. 34 is a plan view of a main part of the columnar segment assembling apparatus of FIG. 33;

FIG. 35 is a rear view of the columnar segment assembling apparatus according to the modified embodiment.

FIG. 36 is a rear view of the columnar segment assembling apparatus according to the modified embodiment.

FIG. 37 is a rear view of a main part of the columnar segment assembling apparatus of FIG. 36;

FIG. 38 is a rear view of a double shield excavator (column segment holding) according to the related art.

FIG. 39 is a rear view of the double shield excavator (column segment turning) shown in FIG. 31;

FIG. 40 is a rear view of the twin shield excavator of FIG. 31 (column segment turning stop).

FIG. 41 is a rear view of the twin shield excavator of FIG. 31 (postal segment assembly).

[Explanation of symbols]

 Sb Upper wing segment Sc Lower wing segment Sd Column segment T Tunnel 1 Double shield excavator 10a, 10b Elector device 100, 100A to 100F Column segment assembling device 101, 101A, 101B Receiving unit 102 Receiving unit evacuation moving mechanism 103, 103A to 103F Auxiliary movement drive mechanism 104 Positioning mechanism 130,130B Lower receiving part 135 Lower evacuation moving mechanism 140,140B Upper receiving part 145 Upper evacuation moving mechanism 160 Height adjustment mechanism

Continuation of the front page (56) References JP-A-3-2499 (JP, A) JP-A-2-116599 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E21D 11 / 40

Claims (8)

(57) [Claims] 1. A method of assembling a columnar segment between upper and lower wing segments attached to a tunnel excavated by a multiple shield excavator, comprising: gripping the columnar segment with an erector device; A first step of supplying a predetermined mounting posture to the mounting preparation position on the side of the gap, and placing the columnar segment supplied to the mounting preparation position on a receiving table and setting a height position via the receiving table A second step, and a third step of horizontally sliding the columnar segment placed on the cradle to the side by the erector device and the auxiliary movement driving mechanism, and assembling the columnar segment at an assembly position between the upper and lower wing segments, A method for assembling a columnar segment of a multiple shield excavator, comprising: 2. The columnar segment of a multiple shield excavator according to claim 1, wherein in the third step, the columnar segment that slides is received by a positioning mechanism and is positioned at the mounting position. Assembly method. 3. An apparatus for assembling a columnar segment between upper and lower wing segments attached to a tunnel excavated by a multiple shield excavator, wherein the columnar segment is gripped and a side of a gap between the upper and lower wing segments is provided. An erector device that can be supplied to one of the assembling preparation positions in a predetermined assembling posture, a receiving table for mounting the columnar segments supplied to the assembling preparing position, and a columnar segment mounted on the receiving table. And an auxiliary movement drive mechanism that can be slid horizontally toward the installation direction and can be installed at an installation position between upper and lower wing segments, and a columnar segment assembling apparatus for a multiple shield excavator, comprising: . 4. The multiple type according to claim 3, further comprising a positioning mechanism that receives the columnar segment that is moved and driven by the erector device and an auxiliary movement driving mechanism and positions the column segment at the mounting position. Assembling device for columnar segments of shield machine. 5. The positioning mechanism according to claim 1, further comprising a receiving portion for receiving the columnar segment, and a retracting moving mechanism for moving the receiving portion in the direction of the tunnel axis relative to the shield machine body. The assembly device for a columnar segment of a multiple shield excavator according to claim 4, characterized in that: 6. The positioning mechanism includes an upper receiving portion for receiving an upper portion of the columnar segment, a lower receiving portion for receiving a lower portion of the columnar segment, and each of these receiving portions relative to the shield machine. The apparatus for assembling a columnar segment of a multiple shield excavator according to claim 5, further comprising an upper evacuation movement mechanism and a lower evacuation movement mechanism for moving the same in the direction of the tunnel axis. 7. The columnar segment of the multiple shield excavator according to claim 3, further comprising a height position adjusting mechanism for adjusting a height position of the pedestal. Mounting device. 8. The multiple shield excavator according to claim 7, further comprising a cradle retreat moving mechanism that moves the cradle relative to the shield excavator main body in the direction of the tunnel axis. Column segment assembly device.