JP4509844B2 - Vertical wall assembly apparatus and vertical wall construction method - Google Patents

Description

  The present invention provides a vertical wall assembling apparatus used for constructing a vertical wall that divides a space in the tunnel into left and right between a horizontal floor slab already constructed in a tunnel and a ceiling portion of the tunnel, and the above The present invention relates to a vertical wall construction method for constructing the vertical wall between a horizontal floor slab and a ceiling portion of the tunnel.

  In general, in order to arrange a power cable, a water pipe, a gas pipe, a telephone line, etc. in a tunnel, as shown in Patent Document 1, the space in the tunnel is often divided vertically and horizontally. .

That is, at the bottom of the tunnel, a number of lower vertical walls that divide the lower space in the tunnel left and right are continuously constructed over the tunnel length direction. Further, between the left wall surface and the right wall surface of the tunnel, a large number of horizontal floor slabs that divide the space in the tunnel up and down are continuously constructed over the tunnel length direction. Furthermore, a large number of upper vertical walls that divide the upper space in the tunnel left and right are continuously constructed between the horizontal floor slab and the ceiling of the tunnel.
JP-A-11-44186

  By the way, the work space between the ceiling of the tunnel and the horizontal floor slab is narrow, and it is extremely difficult to stand the upper vertical wall on the horizontal floor slab. Therefore, it is necessary to construct the upper vertical wall by placing concrete in the tunnel, and there is a construction period necessary for constructing a large number of the upper vertical walls continuously over the tunnel length direction. There is a problem of becoming longer.

A first feature of the present invention is that a vertical wall used for constructing a vertical wall that divides a space in the tunnel to the left and right between a horizontal floor slab already constructed in the tunnel and a ceiling portion of the tunnel. An assembly device,
A carriage movable in the tunnel length direction of the tunnel at one side portion of the horizontal floor slab in the left-right direction;
A support frame provided with a fixed guide provided on the carriage and extending along the inner circumferential direction of the tunnel;
A slider provided on the fixed guide in the support frame, movable along the inner circumferential direction of the tunnel, and holding (including gripping) the vertical wall;
It is that it was equipped.

  Here, the term “provided” includes not only being provided directly but also providing indirectly through another member.

  According to the first feature of the present invention, the vertical wall is lifted by the lifting device so that the vertical wall is inclined to one side in the left-right direction and the lower end of the vertical wall is positioned near the center in the left-right direction. Then, the slider is positioned at a predetermined position between the vertical wall and the horizontal floor slab by moving the carriage in the tunnel length direction. Furthermore, the vertical wall can be received from the lifting device by holding the vertical wall by the slider.

  After receiving the vertical wall, by moving the slider along the circumferential direction of the tunnel, even if the working space between the ceiling of the tunnel and the horizontal floor slab is narrow, the horizontal floor slab The vertical wall can be raised substantially vertically. And while attaching the lower end part of the said vertical wall integrally to the said horizontal floor slab, the upper end part of the said vertical wall is attached integrally to the ceiling part of the said tunnel.

  With the above-described operation, the vertical wall can be constructed between the horizontal floor slab and the tunnel ceiling. In addition, by repeating the above-described operation, a large number of the vertical walls can be continuously constructed across the tunnel length direction between the horizontal floor slab and the tunnel ceiling.

A second feature of the present invention is that the vertical wall assembling apparatus according to claim 2 is used, and an upper space in the tunnel is provided between a horizontal floor slab already constructed in the tunnel and a ceiling portion of the tunnel. A vertical wall construction method for constructing a vertical wall that partitions left and right,
A lifting step of lifting the vertical wall by a lifting device so that the vertical wall is inclined to one side in the left-right direction and the lower end of the vertical wall is positioned near the center in the left-right direction;
After the lifting step is finished, the clamper is positioned at a predetermined position between the vertical wall and the horizontal floor slab by moving the carriage in the tunnel length direction, and further, the inclined posture Receiving the vertical wall from the lifting device by gripping the gripped portion of the vertical wall by the clamper;
After the receiving step is completed, the vertical wall is moved in the horizontal slab by moving the slider along the inner circumferential direction of the tunnel and gradually changing the clamper from the inclined posture to the vertical posture. An erecting step of erecting substantially vertically;
After the standing step is completed, the lower end portion of the vertical wall is integrally attached to the horizontal floor slab, and the upper end portion of the vertical wall is integrally attached to the ceiling portion of the tunnel;
It is that it was equipped.

A third feature of the present invention is that the vertical wall assembly apparatus according to claim 2 is used, and an upper space in the tunnel is provided between a horizontal floor slab already constructed in the tunnel and a ceiling portion of the tunnel. A vertical wall construction method for constructing a vertical wall that partitions left and right,
A lifting step of lifting the vertical wall by a lifting device so that the vertical wall is inclined to one side in the left-right direction and the lower end of the vertical wall is positioned near the center in the left-right direction;
After the lifting step is finished, the clamper is positioned at a predetermined position between the vertical wall and the horizontal floor slab by moving the carriage in the tunnel length direction, and further, the inclined posture Receiving the vertical wall from the lifting device by gripping the gripped portion of the vertical wall by the clamper;
After the receiving step is completed, the slider is moved to the inner periphery of the tunnel under a state where a part of the lower end side of the vertical wall is inserted in an insertion groove formed in the center in the left-right direction of the horizontal floor slab. An erection step of causing the vertical wall to rise substantially vertically in the insertion groove in the horizontal floor slab by moving along the direction and gradually changing the clamper from the inclined posture to the vertical posture;
After the standing step is completed, the lower end portion of the vertical wall is integrally attached to the horizontal floor slab, and the upper end portion of the vertical wall is integrally attached to the ceiling portion of the tunnel;
A filling step of filling a gap in the insertion groove in the horizontal floor slab with mortar or concrete after the attaching step is completed;
It is that it was equipped.

  As described above, according to the present invention, after the vertical wall is received from the lifting device, the slider is moved along the inner circumferential direction of the tunnel, whereby the ceiling portion of the tunnel and the horizontal floor slab are moved. Even if the work space between them is narrow, the vertical wall can be erected substantially vertically in the horizontal slab. Therefore, it is not necessary to construct the vertical wall by placing concrete in the tunnel, and the construction period required to construct a large number of the vertical walls continuously over the tunnel length direction is shortened. Can do.

  Hereinafter, an internal structure of a shield tunnel according to an embodiment of the present invention, a vertical wall assembling apparatus according to an embodiment of the present invention, a lifting apparatus according to an embodiment of the present invention, and a vertical wall construction method according to an embodiment of the present invention. These will be sequentially described with reference to the drawings. In the drawings, “FF” indicates the forward direction, “FR” indicates the backward direction, “L” indicates the left direction, and “R” indicates the right direction.

  First, the internal structure of the shield tunnel according to the embodiment of the present invention will be described with reference to FIG. Here, FIG. 6 is a diagram showing the internal structure of the shield tunnel according to the embodiment of the present invention.

  As shown in FIG. 6, a concrete invert 3 is placed at the bottom of the shield tunnel 1 according to the embodiment of the present invention, and in the center of the concrete invert 3, in the tunnel length direction (in other words, An insertion groove 5 extending in the Z-axis direction or the front-rear direction) is formed. The insertion groove 5 is constructed with a number of precast-type lower vertical walls 7 that divide the lower space in the shield tunnel 1 to the left and right continuously in the Z-axis direction. Is filled with mortar 9.

  Between the left wall portion and the right wall portion of the shield tunnel 1, a large number of horizontal floor slabs 11 that divide the space in the shield tunnel 1 up and down are constructed continuously in the Z-axis direction. The plate 11 includes a precast-type first horizontal floor slab 13 constructed between the left wall portion of the shield tunnel 1 and the upper end portion of the lower vertical wall 7, the upper end portion of the lower vertical wall 7, and the right side of the shield tunnel 1. It consists of a precast type second horizontal slab 15 constructed between the wall portion. Further, an insertion groove 17 extending in the Z-axis direction is formed in the center portion of the horizontal floor slab 11 (in other words, the right portion of the first horizontal floor slab 13). Drain grooves 19 </ b> L and 19 </ b> R extending in the Z-axis direction are respectively formed in the central portion of the portion and the second horizontal slab 15. The upper surface of the first horizontal floor slab 13 has a gradient such that water flows toward the drainage groove 19L. Similarly, the upper surface of the second horizontal floor slab 15 has water flowing toward the drainage groove 19R. It has a flowing gradient.

  Between the bottom of the insertion groove 17 in the horizontal floor slab 11 and the ceiling of the shield tunnel 1, a number of precast-type upper vertical walls 21 that divide the upper space in the shield tunnel 1 left and right are continuously constructed. The gap in the insertion groove 17 is filled with mortar 23 (or concrete).

  Next, a vertical wall assembling apparatus according to an embodiment of the present invention will be described with reference to FIGS. Here, FIG. 1 is a front view of a vertical wall assembling apparatus according to an embodiment of the present invention, FIG. 2 is a plan view of the vertical wall assembling apparatus according to an embodiment of the present invention, and FIG. FIG. 4 is a left side view of the vertical wall assembling apparatus according to the embodiment of the present invention, and FIG. 4 is a view showing the periphery of the slider and the linear slider in the vertical wall assembling apparatus according to the embodiment of the present invention. 5 is a view of FIG. 4 as viewed from the left.

  As shown in FIGS. 1 to 3, the vertical wall assembly apparatus 25 according to the embodiment of the present invention is movable in the Z-axis direction in the right portion of the horizontal floor slab 11 (in other words, the second horizontal floor slab 15). The cart 27 includes four wheels (two front wheels and two rear wheels) 29, a self-propelled motor 31 that rotationally drives two wheels (for example, the rear wheels) 29, and drainage. A guide roller 33 that is guided and supported by the groove 19R so as to be movable in the Z-axis direction is provided.

  A pair of Z-axis guide rails 35 extending in the Z-axis direction (front-rear direction) are provided on the upper surface of the carriage 27, and the pair of Z-axis guide rails 35 can be moved in the Z-axis direction. A stand 37 is provided. Then, in order to move the Z-axis movable table 37 in the Z-axis direction, the base of the Z-axis movable table moving jack 41 provided with a piston rod 39 movable in the Z-axis direction at the rear part of the carriage 27 (jack main body). Is provided via a bracket, and the tip of the piston rod 39 is connected to an appropriate position of the Z-axis movable table 37 via a connecting member.

  A pair of Y-axis guide rails 43 extending in the left-right direction (in other words, the Y-axis direction) are provided on the upper surface of the Z-axis movable stand 37. The pair of Y-axis guide rails 43 are provided in the Y-axis direction. A movable support frame 45 is provided. Then, in order to move the support frame 45 in the Y-axis direction, a base (jack body) of a support frame moving jack 49 provided with a piston rod 47 movable in the Y-axis direction is provided on the right side of the Z-axis movable table 37. Is provided via a bracket, and the tip of the piston rod 47 is connected to an appropriate position of the support frame 45 via a connecting member.

  Further, the support frame 45 is a rectangular Y-axis movable base 51 provided on the pair of Y-axis guide rails 43 so as to be movable in the Y-axis direction, and is erected on the Y-axis movable base 51 and opposed to the front and rear. A pair of support blocks 53 and a fixed guide 55 provided on each of the pair of support blocks 53 and extending along the tunnel circumferential direction of the shield tunnel 1 are provided. The lower end of the fixed guide 55 is positioned below the upper surface of the Y-axis movable table 51 and the upper surface of the Z-axis movable table 37. 37 so as not to interfere with the motor 37.

  The fixed guide 55 in the support frame 45 is provided with a slider 57 that can move along the circumferential direction of the tunnel. The slider 57 includes a curved movable guide 59 that is guided and supported by the fixed guide 55. In order to move the slider 57 along the circumferential direction of the tunnel, a base portion (jack main body) of a slider moving jack 63 provided with a piston rod 61 movable in the left-right direction at the right portion of the Y-axis movable base 51. The piston rod 61 is rotatably connected to an appropriate position of the slider 57 via a connecting member via a bracket. The lower end of the slider 57 may be positioned below the Y-axis movable table 51 and the Z-axis movable table 37, but the slider 57 does not interfere with the Y-axis movable table 51 and the Z-axis movable table 37. It is configured.

  As shown in FIGS. 1, 4, and 5, the slider 57 is provided with a linear slider 65, which is movable along a direction orthogonal to the tunnel radial direction, via four guide rods 67. ing. Then, in order to move the linear slider 65 along the orthogonal direction, the pair of support blocks 53 includes a base of a linear slider moving jack 71 provided with a piston rod 69 movable along the orthogonal direction ( Jack main bodies are provided via brackets, and the tip portions of the piston rods 69 are connected to appropriate positions of the linear slider 65 via connecting members. The linear slider 65 includes a quadrangular support frame 73 that extends along a direction orthogonal to the tunnel radial direction.

  The support frame 73 in the linear slider 65 is provided with a holder 75 that can move along the orthogonal direction. In order to move the holder 75 along the orthogonal direction, a holder moving jack 79 provided with piston rods 77 movable along the orthogonal direction is provided on both the front and rear sides of the support frame 73 via the bracket. The tip of each piston rod 77 is connected to an appropriate position of the holder 75 via a connecting member and a long hole.

  The holder 75 is provided with a clamper 83 for holding a pin to be held (held portion) 81 on the upper vertical wall 21, and this clamper 83 can be moved in the clamping / unclamping direction by the operation of the holding jack 85. A pair of gripping claws 87 is provided. Here, the clamper 83 is inclined to the right side and moved away from the vertical center line S of the shield tunnel 1 by the movement of the slider 57 (see FIG. 11). It is configured to gradually change to a vertical posture (see FIG. 15) approaching the vertical center line S. The pin 81 to be grasped is screwed into the upper vertical wall 21 and is removed from the upper vertical wall 21 after the construction of the upper vertical wall 21 is completed.

  Further, the holder 75 is provided with a plurality of support members 89 that support the left side surface of the upper vertical wall 21, and each support member 89 extends along the orthogonal direction depending on the operation of the support jack 91. It is something that moves.

  Next, a lifting device according to an embodiment of the present invention will be described with reference to FIG. Here, FIG. 7 is a front view of the lifting device according to the embodiment of the present invention.

  As shown in FIG. 7, the lifting device 93 according to the embodiment of the present invention includes a carriage 95 that can move in the Z-axis direction on the left side portion of the horizontal floor slab 11 (in other words, the first horizontal floor slab 13). The carriage 95 includes four wheels (two front wheels and two rear wheels) 97, a self-propelled motor 99 that rotationally drives two wheels (for example, rear wheels) 97, and a drain groove 19L with a Z-axis. And a guide roller 101 that is guided and supported so as to be movable in the direction.

  A support frame 103 is erected on the carriage 95, and a guide member 105 extending in the Y-axis direction is provided on the support frame 103. The guide member 105 is provided with a pair of chain blocks 107 so as to be movable in the Y-axis direction. Each chain block 107 is moved in the Y-axis direction by driving an independent movement motor (not shown). Is. Each chain block 107 includes a chain 109 that can be fed and wound, and a hook 113 that is provided at the tip of the chain 109 and that can be locked at a predetermined portion of the wire 111 that hangs around the upper vertical wall 21. Each is equipped.

  Next, a vertical wall construction method according to an embodiment of the present invention will be described with reference to FIGS.

  Here, FIGS. 8 to 17 are views for explaining the vertical wall construction method according to the embodiment of the present invention.

  The vertical wall construction method according to the embodiment of the present invention uses the vertical wall assembling apparatus 25 to place the upper vertical wall 21 between the horizontal floor slab 11 already constructed in the shield tunnel 1 and the ceiling portion of the shield tunnel 1. (I) a lifting process, (ii) a receiving process, (iii) a standing-up process, (iv) a positioning process, (v) an attaching process, and (vi) a filling process. It has.

(i) Lifting process The carriage 95 is moved in the tunnel length direction so that one chain block 107 is positioned directly above the upper vertical wall 21 that is previously placed horizontally on the horizontal floor slab 11. Next, the chain 109 in one chain block 107 is sent out, and a predetermined portion of the wire 111 hung around the upper vertical wall 21 by the hook 113 in one chain block 107 is locked. Then, the chain 109 in one chain block 107 is wound up. Accordingly, as shown in FIG. 8, the upper vertical wall 21 can be lifted in a substantially horizontal state by the lifting device 93.

  After lifting the upper vertical wall 21 in a substantially horizontal state, the carriage 95 is moved in the Z-axis direction to be positioned at a predetermined position in the Z-axis direction. Next, the chain 109 in one chain block 107 is sent out, and the upper vertical wall 21 is temporarily placed on the horizontal floor slab 11 horizontally. Then, two predetermined portions of the wire 111 wound around the upper vertical wall 21 are hooked by the hooks 113 in the pair of chain blocks 107, respectively. Then, the chains 109 in the pair of chain blocks 107 are respectively wound up. Accordingly, as shown in FIG. 9, the lifting device 93 causes the upper vertical wall 21 to tilt rightward and the lower end of the upper vertical wall 21 is positioned near the center in the Y-axis direction (left-right direction). The vertical wall 21 can be lifted.

(ii) Receiving Step After the lifting step is completed, the clamper 83 is positioned at a predetermined position between the upper vertical wall 21 and the horizontal floor slab 11 by moving the carriage 95 in the Z-axis direction. Then, the pair of gripping claws 87 are moved in the clamping direction by the operation of the pair of gripping jacks 85, and the gripped pin 81 of the upper vertical wall 21 is gripped by the clamper 83 in the inclined posture. Further, depending on the operation of the plurality of support jacks 91, the support member 89 is moved along the orthogonal direction, and the left side surface of the upper vertical wall 21 is held by the plurality of support members 89. Thereby, as shown in FIG. 10, the upper vertical wall 21 can be received from the lifting device 93.

(iii) Standing step After the receiving step is finished, the upper vertical wall is moved by moving the linear slider 65 along the orthogonal direction by the operation of the pair of linear slider moving jacks 71 to approach the slider 57. A part of the lower end side of 21 (one lower corner portion) is made to enter the insertion groove 17. Then, under the state where one lower corner portion of the upper vertical wall 21 is in the insertion groove 17, the slider 57 is moved along the inner circumferential direction of the tunnel by the operation of the slider moving jack 63, and the clamper 83 is gradually changed from the inclined posture. Thereby, as shown in FIG. 12, the upper vertical wall 21 can be raised by a predetermined raising angle in the insertion groove 17 in the horizontal floor slab 11.

  After raising the upper vertical wall 21 by a predetermined raising angle, the support frame 45 is moved slightly to the right by the operation of the support frame moving jack 49, and as shown in FIG. The upper vertical wall 21 is positioned in the Y-axis direction (left-right direction) so that the lower corner portion coincides with the tunnel vertical line S of the shield tunnel 1. Next, by operating the holder moving jack 79, the holder 75 is slightly moved along the tunnel radial direction, and one lower corner portion of the upper vertical wall 21 is inserted into the insertion groove 17 as shown in FIG. Land on the bottom. The slider 57 is moved along the circumferential direction of the tunnel by the operation of the slider moving jack 63 under the condition that one lower corner portion of the upper vertical wall 21 is in the insertion groove 17, and the clamper 83 is moved. Is gradually changed to the vertical posture. Thereby, even if the working space between the ceiling portion of the shield tunnel 1 and the horizontal floor slab 11 is narrow, as shown in FIG. 15, the upper vertical wall 21 is erected substantially vertically in the insertion groove 17 in the horizontal floor slab 11. Can be made.

(iv) Positioning Step After the (v) standing-up step is completed, the support frame 45 is moved slightly to the right by the operation of the support frame moving jack 49, and as shown in FIG. The upper vertical wall 21 can be positioned in the left-right direction in the horizontal floor slab 11 so that the center line of the horizontal slab substantially coincides with the vertical center line S of the shield tunnel 1.

(v) Attachment process After the (iv) positioning process is completed, the lower end portion of the upper vertical wall 21 is integrally attached to the horizontal floor slab 11 with a bolt or the like, and the upper end portion of the upper vertical wall 21 is attached to the shield tunnel 1. Attached to the ceiling with bolts.

(vi) Filling Step After the (v) mounting step is completed, the mortar 23 (or concrete) is filled in the gap in the insertion groove 17 in the horizontal floor slab 11 as shown in FIG.

  By the above-described operation, a precast type upper vertical wall 21 can be constructed between the horizontal floor slab 11 and the ceiling portion of the shield tunnel 1. In addition, by repeating the above-described operation, a large number of precast-type upper vertical walls 21 can be continuously constructed across the Z-axis direction between the horizontal floor slab 11 and the ceiling portion of the shield tunnel 1.

  As described above, according to the present invention, after receiving the precast upper vertical wall 21 from the lifting device 93, the slider 57 is moved along the inner circumferential direction of the tunnel to move the clamper 83 from the inclined posture to the vertical position. By gradually changing the posture, the upper vertical wall 21 of the precast type is erected substantially vertically on the horizontal floor slab 11 even when the work space between the ceiling portion of the shield tunnel 1 and the horizontal floor slab 11 is narrow. Can do. Therefore, it is not necessary to construct the upper vertical wall 21 by placing concrete in the shield tunnel 1, and the construction period required for continuously constructing a large number of the upper vertical walls 21 along the Z-axis direction is shortened. can do.

  The present invention is not limited to the description of the embodiment of the invention described above, and can be implemented in various modes, for example, by constructing the horizontal floor slab 11 on the concrete invert 3 without using the lower vertical wall 7. It is.

It is a front view of the vertical wall assembly apparatus concerning embodiment of this invention, Comprising: The support block is abbreviate | omitted. It is a top view of the vertical wall assembly apparatus concerning embodiment of this invention. 1 is a left side view of a vertical wall assembling apparatus according to an embodiment of the present invention. It is a figure which shows the periphery of the slider and linear slider in the vertical wall assembly apparatus concerning embodiment of this invention. It is the figure which looked at FIG. 4 from the left. It is a figure which shows the internal structure of the shield tunnel concerning embodiment of this invention. It is a front view of the lifting device concerning the embodiment of the present invention. It is a figure explaining the vertical wall construction method concerning embodiment of this invention. It is a figure explaining the vertical wall construction method concerning embodiment of this invention. It is a figure explaining the vertical wall construction method concerning embodiment of this invention. It is a figure explaining the vertical wall construction method concerning embodiment of this invention. It is a figure explaining the vertical wall construction method concerning embodiment of this invention. It is a figure explaining the vertical wall construction method concerning embodiment of this invention. It is a figure explaining the vertical wall construction method concerning embodiment of this invention. It is a figure explaining the vertical wall construction method concerning embodiment of this invention. It is a figure explaining the vertical wall construction method concerning embodiment of this invention. It is a figure explaining the vertical wall construction method concerning embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shield tunnel 11 Horizontal floor slab 17 Insertion groove 21 Upper vertical wall 23 Mortar 25 Vertical wall assembly apparatus 27 Bogie 45 Support frame 55 Fixed guide 57 Slider 65 Linear slider 75 Holder 81 Grasping pin 83 Clamper 93 Lifting device

Claims (8)

A vertical wall assembling apparatus used for constructing a vertical wall that partitions the space in the tunnel to the left and right between a horizontal floor slab already constructed in the tunnel and the ceiling of the tunnel,
A carriage movable in the tunnel length direction of the tunnel at one side portion of the horizontal floor slab in the left-right direction;
A support frame provided with a fixed guide provided on the carriage and extending along the inner circumferential direction of the tunnel;
A slider provided on the fixed guide in the support frame, movable along the inner circumferential direction of the tunnel, and holding the vertical wall;
A vertical wall assembling apparatus comprising: Provided on the slider, and tilted to one side in the left-right direction and separated from the vertical center line of the tunnel by moving the slider, is substantially vertical and approaches the vertical center line of the tunnel A clamper configured to gradually change to a vertical posture and grips the gripped portion of the vertical wall;
The vertical wall assembly apparatus according to claim 1, further comprising: The vertical wall assembly apparatus according to claim 1, wherein the support frame is movable in a left-right direction with respect to the carriage. A holder provided on the slider and movable along a tunnel radial direction of the tunnel;
It has
The vertical wall assembly apparatus according to any one of claims 1 to 3, wherein the clamper is provided on the slider via the holder. A linear slider provided on the slider and movable along a tunnel radial direction of the tunnel;
A holder provided on the linear slider and movable along the tunnel radial direction;
It has
4. The vertical wall assembling apparatus according to claim 1, wherein the clamper is provided on the slider via the linear slider and the holder. 5. A vertical wall that uses the vertical wall assembly apparatus according to claim 2 to construct a vertical wall that divides the upper space in the tunnel left and right between a horizontal floor slab already constructed in the tunnel and the ceiling of the tunnel. A wall construction method,
A lifting step of lifting the vertical wall by a lifting device so that the vertical wall is inclined to one side in the left-right direction and the lower end of the vertical wall is positioned near the center in the left-right direction;
After the lifting step is finished, the clamper is positioned at a predetermined position between the vertical wall and the horizontal floor slab by moving the carriage in the tunnel length direction, and further, the inclined posture Receiving the vertical wall from the lifting device by gripping the gripped portion of the vertical wall by the clamper;
After the receiving step is completed, the vertical wall is moved in the horizontal slab by moving the slider along the inner circumferential direction of the tunnel and gradually changing the clamper from the inclined posture to the vertical posture. An erecting step of erecting substantially vertically;
After the standing step is completed, the lower end portion of the vertical wall is integrally attached to the horizontal floor slab, and the upper end portion of the vertical wall is integrally attached to the ceiling portion of the tunnel;
A vertical wall construction method characterized by comprising: A vertical wall that uses the vertical wall assembly apparatus according to claim 2 to construct a vertical wall that divides the upper space in the tunnel left and right between a horizontal floor slab already constructed in the tunnel and the ceiling of the tunnel. A wall construction method,
A lifting step of lifting the vertical wall by a lifting device so that the vertical wall is inclined to one side in the left-right direction and the lower end of the vertical wall is positioned near the center in the left-right direction;
After the lifting step is finished, the clamper is positioned at a predetermined position between the vertical wall and the horizontal floor slab by moving the carriage in the tunnel length direction, and further, the inclined posture Receiving the vertical wall from the lifting device by gripping the gripped portion of the vertical wall by the clamper;
After the receiving step is completed, the slider is moved to the inner periphery of the tunnel under a state where a part of the lower end side of the vertical wall is inserted in an insertion groove formed in the center in the left-right direction of the horizontal slab An erection step of causing the vertical wall to rise substantially vertically in the insertion groove in the horizontal floor slab by moving along the direction and gradually changing the clamper from the inclined posture to the vertical posture;
After the standing step is completed, the lower end portion of the vertical wall is integrally attached to the horizontal floor slab, and the upper end portion of the vertical wall is integrally attached to the ceiling portion of the tunnel;
A filling step of filling mortar or concrete into a gap in the insertion groove in the horizontal slab after the attaching step is completed;
A vertical wall construction method characterized by comprising: By moving the support frame in the left-right direction between the standing step and the attaching step, the vertical floor of the horizontal floor slab is arranged so that the center line of the vertical wall substantially coincides with the vertical center line of the tunnel. A positioning step for positioning the wall in the left-right direction;
The vertical wall construction method according to claim 6 or 7, further comprising:

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