Rotational movement system and lateral movement system for shield excavation machine

Abstract

To provide a rotational movement system and a lateral movement system for a shield excavation machine capable of allowing rotational movement and lateral movement of the shield excavation machine with smoothness and high safety to be realized inside of a vertical pit.SOLUTION: A rotational movement system 70 rotating a shield excavation machine M arriving at a vertical pit 10 has: a mount cradle 40 on which the shield excavation machine is mounted; a reaction force cradle 30 which is seated on a bottom slab 11; a turntable 50 which is supported rotatably to the reaction force cradle 30; and rotational means 60. The rotational means 60 comprises a first rotation supporting part 61, a first engaging part 62, and a jack 63 for rotation. First engaged parts 36 are provided with specific intervals in a groove like guide rail 35 provided on the reaction force cradle 30. The turntable 50 is rotated a predetermined angle when the jack 63 for rotation extends in a state where the first engaging part 62 is engaged with the first engaged part 36. The first engaging part 62 is disengaged from the first engaged part 36 and is moved to the next first engaged part 36 when the jack 63 for rotation is contracted.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a rotational movement system and a lateral movement system for a shield tunneling machine. [Background technology]

[0002] When using one shield machine to construct two shield tunnels next to each other, there is a construction method in which the shield machine that constructed the first shield tunnel (the so-called outbound tunnel) is brought into the reach section of a vertical shaft which has a reach section and a starting section, the shield machine is rotated a predetermined angle (for example, 180 degrees) inside the vertical shaft, the shield machine is moved laterally (for example, horizontally) to move it to the starting section, and the shield machine is then launched from the starting section to construct the second shield tunnel (the so-called return tunnel). Here, the method of rotating the shield machine by a predetermined angle is sometimes referred to as making a U-turn for the shield machine. There are various types of movement that can be performed by the shield tunneling machine to rotate or move laterally inside the shaft, such as a method in which the machine is rotated completely and then moved laterally, a method in which the machine is moved laterally partway and then rotated completely before moving laterally some more, or a method in which the machine is moved laterally completely and then rotated. There is a method of disposing a device that uses rolling iron balls between the shield machine and the bottom slab to rotate and move the shield machine over the bottom slab of a shaft, but with this method, the weight of the shield machine causes the iron balls to dig into the bottom slab, creating unevenness in the bottom slab, which in turn increases resistance to the rolling of the iron balls, making the rotational and lateral movements difficult. This problem becomes even more pronounced when the shield machine has a large diameter. There is also a risk that the iron ball will roll too far and collide with the side of the shaft.

[0003] Furthermore, the U-turn construction using the shield tunneling machine described above is not something that just anyone can do easily. Specifically, the shield machine that constructed the outbound tunnel is pulled into the shaft, placed on a platform, and moved laterally to the starting position for constructing the return tunnel. The above-mentioned iron balls (steel balls) and air casters are installed below the shield machine support base, but this preparatory work requires that a steel plate be laid evenly over the entire range of movement of the support base and that the joints be treated carefully. In addition, when moving sideways or aligning the position during actual U-turn construction, changeover work is required to correct the direction, and many skilled workers must be deployed. For these reasons, U-turn construction for shield tunneling machines is generally performed by a specialized contractor who operates the U-turn device.

[0004] For these reasons, there is a need for a rotational movement system and lateral movement system for a shield tunneling machine that can achieve smooth and safe rotational and lateral movement of the shield tunneling machine inside a vertical shaft, eliminating the need for a specialized contractor to operate the U-turn device and that can be operated by anyone.

[0005] Here, Patent Document 1 proposes a movement device for a shield excavator. This movement device for a shield excavator includes a base fixed to the underside of the shield excavator, a jack-up device fixed to the shield excavator and moving the base and the shield excavator up and down by extension and retraction, and a horizontal movement device installed under the base and moving the base and the shield excavator horizontally by a slide mechanism, and the horizontal movement device is moved to a predetermined position by extending the jack-up device, and the shield excavator is moved horizontally by the slide mechanism of the horizontal movement device. More specifically, the horizontal movement device is composed of a sliding ship on which the platform is placed, rails which serve as the sliding ship's running path, and jacks which serve as the means for moving the sliding ship, and the frictional resistance between the sliding ship and the rails is set to be smaller than the frictional resistance between the rails and the support surface of the rails. More specifically, a rotating turntable is installed on the top of the sliding ship, and the platform is placed on top of the turntable. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2005-240401 A Summary of the Invention [Problem to be solved by the invention]

[0007] The movement device for the shield excavator described in Patent Document 1 provides various benefits, such as no risk of slipping on the floor, little obstruction to movement even if there are foreign objects or unevenness on the support surface, and the distance and direction of the shield excavator can be determined freely by the horizontal movement device, allowing it to be moved reliably even over short distances. However, the rails need to be replaced every time the jack in the horizontal movement device is stroked, leaving room for improvement in terms of the effort required for operation.

[0008] The present invention aims to provide a rotational movement system and lateral movement system for a shield tunneling machine that, in construction work in which the shield tunneling machine is rotated and moved laterally inside a vertical shaft, eliminates the need for a specialized contractor to operate a U-turn device and can be operated by anyone, thereby achieving smooth and safe rotational and lateral movement of the shield tunneling machine. [Means for solving the problem]

[0009] In order to achieve the above object, one aspect of the rotation movement system for a shield tunneling machine according to the present invention comprises: A rotation movement system for a shield tunneling machine that is installed inside a vertical shaft and rotates a shield tunneling machine that has reached the vertical shaft, A mounting stand on which the shield machine is mounted; A reaction stand that is placed on the bottom plate of the shaft; a turntable that is integrated with the mounting base, rotatably supported with respect to the reaction base, and has a ring shape; A rotating means for rotating the turntable, the rotating means includes a first rotation support part rotatably connected to the turntable, a first locking part locked to a part of the reaction base, and a rotation jack connecting the first rotation support part and the first locking part; A grooved guide rail is provided on the reaction base outside the outer periphery of the turntable, and a first engaging portion is provided at a predetermined interval in the longitudinal direction of the guide rail to engage with the first engaging portion; When the rotating jack is extended with the first engaging portion engaged with the first engaged portion, the turntable rotates by a predetermined angle by receiving a reaction force from the reaction base, After the turntable has rotated a predetermined angle, when the rotating jack is contracted, the first engaging portion disengages from the first engaged portion and moves to the next first engaged portion.

[0010] According to this aspect, the turntable, which is integrated with the mounting stand on which the shield tunneling machine is placed, is rotatably supported on the reaction stand which is seated on the bottom slab of the shaft, and the turntable is rotated by a rotating means, allowing anyone to operate it and achieving smooth and safe rotational movement of the shield tunneling machine. In addition, the rotation means comprises a first rotating support connected to the turntable, a first engaging part engaged with a part of the reaction base, and a rotation jack connecting these, and when the first engaging part is engaged with the first engaged part provided at a predetermined interval on the guide rail of the reaction base, the rotation jack extends to rotate the turntable by a predetermined angle, and after the turntable has rotated by the predetermined angle, when the rotation jack contracts, the first engaging part disengages from the first engaged part and moves to the next first engaged part and engages there, thereby achieving stable and highly accurate rotational movement of the turntable to the desired angle. Furthermore, a plurality of first locked portions are provided, for example, on the bottom surface of the grooved guide rail, and the first locking portion is locked to the first locked portions, thereby preventing the first locking portion from coming off the guide rail.

[0011] In another aspect of the rotation movement system for a shield tunneling machine according to the present invention, The first engaged portion is a locking hole, and the first engaging portion is a locking pin, The locking hole has a first inclined surface that slides against the top end of the guide rail at the front in the direction of rotation of the turntable, and when the first locking portion is engaged or disengaged from the first locked portion, the first locking portion is guided along the first inclined surface for engagement and disengagement.

[0012] According to this aspect, a first inclined surface (inclined diagonally upward in the direction of rotation) that slides against the top end of the guide rail is provided in front of the locking hole, which is the first locked portion, in the rotation direction of the turntable, and the locking pin, which is the first locking portion, is engaged and disengaged along the first inclined surface, thereby enabling the locking pin to be smoothly engaged and disengaged from the locking hole when the rotation jack is retracted.

[0013] In another aspect of the rotation movement system for a shield tunneling machine according to the present invention, The locking pin has a second inclined surface inclined toward a lower end thereof at a front side in a rotation direction of the turntable, When the first engaging portion is disengaged from the first engaged portion, the second inclined surface is guided along the first inclined surface for engagement and disengagement.

[0014] According to this aspect, a second inclined surface is provided on the locking pin in front of the rotation direction of the turntable, inclined toward the lower end of the locking pin (inclined diagonally upward in the rotation direction), and the second inclined surface of the locking pin guides the engagement and disengagement along the first inclined surface of the locking hole, thereby achieving even smoother engagement and disengagement of the locking pin from the locking hole when the rotating jack is retracted.

[0015] In another aspect of the rotation movement system for a shield tunneling machine according to the present invention, The locking pin is arranged to be movable up and down inside a through hole extending in a vertical direction that is provided at one end of the rotating jack, The locking pin is provided with a rotation prevention piece that engages with one side of one end of the rotating jack to prevent the locking pin from rotating, and the rotation prevention piece is configured to maintain the position of the second inclined surface relative to the first inclined surface.

[0016] According to this aspect, a rotation prevention piece is provided on the locking pin which engages with one side of one end of the rotating jack to prevent the locking pin from rotating. Therefore, the rotation prevention piece can maintain the position and movement direction of the second inclined surface relative to the first inclined surface, thereby ensuring movement of the second inclined surface along the first inclined surface.

[0017] In another aspect of the rotation movement system for a shield tunneling machine according to the present invention, A plurality of the rotating means are attached to the turntable, The driving of the respective rotating jacks provided in the plurality of rotating means is performed synchronously.

[0018] According to this embodiment, the driving of each of the rotating jacks of the multiple rotating means attached to the turntable is executed synchronously, thereby realizing smooth rotational movement of the heavy shield tunneling machine while reducing the specifications (standards) of each rotating jack as much as possible.

[0019] In another aspect of the rotation movement system for a shield tunneling machine according to the present invention, The turntable includes an inner ring and an outer ring. One of the inner ring and the outer ring is joined to the mounting base, and the other is joined to the reaction base, The outer circumferential surface of the inner ring is provided with a groove, The inner circumferential surface of the outer ring is provided with a protrusion that is received in the recess, The present invention is characterized in that a plurality of rollers are accommodated in each of three groove spaces formed by the upper, side and lower surfaces of the convex rib and the concave rib and extending in the rotation direction, thereby forming a rotation mechanism between the inner ring and the outer ring and a load transmission mechanism from the mounting stand to the reaction force stand.

[0020] According to this aspect, a plurality of rollers are accommodated in each of three groove spaces extending in the rotation direction, which are formed by the concave grooves on the outer peripheral surface of the inner ring that constitutes the turntable and the convex grooves on the inner peripheral surface of the outer ring that are accommodated in the concave grooves, thereby forming a rotation mechanism between the inner ring and the outer ring and a load transfer mechanism from the mounting base to the reaction force base. Each roller supports the load linearly and distributes the load, thereby eliminating the problem of the iron balls biting into the abutting members due to excessive concentrated load when supporting a load at points, as occurs with bearings made of iron balls, for example. In addition, since the multiple rollers in the three groove spaces between the inner ring and the outer ring allow the two to rotate relative to each other, a rotation mechanism can be formed in which frictional resistance is effectively reduced even when a large weight is loaded from the shield tunneling machine, and a stable load transfer mechanism can be formed from the mounting base to the reaction base.

[0021] In another aspect of the rotation movement system for a shield tunneling machine according to the present invention, The turntable has a plurality of alignment pin holes at predetermined angular intervals in a circumferential direction thereof, The first pivot support portions of the plurality of pivot means are provided with alignment pins, and the alignment pins of each of the first pivot support portions are inserted into the corresponding alignment pin holes and attached to the turntable.

[0022] According to this aspect, the turntable has a plurality of alignment pin holes spaced at a predetermined angular interval around its circumference, and the alignment pins provided on the first rotation support portions of the plurality of rotation means are inserted into the corresponding alignment pin holes and attached to the turntable, so that the alignment pins can be used to confirm that the turntable has rotated precisely a predetermined rotation angle. For example, alignment pin holes are provided at a predetermined angular interval of 90 degrees around the circumferential edge of the turntable, and the alignment pins of each of the four rotation means are inserted into each alignment pin hole, so that the accurate rotational movement when the turntable on which the shield tunneling machine is placed is rotated 180 degrees can be confirmed by visually checking the alignment pins.

[0023] In addition, one aspect of the lateral movement system for a shield tunneling machine according to the present invention is A lateral movement system for a shield tunneling machine that laterally moves a rotational movement system for the shield tunneling machine on which the shield tunneling machine is placed, The shaft includes a reach section to which the shield tunneling machine reaches and a start section from which the shield tunneling machine starts, A lateral movement rail connecting the arrival section and the starting section is laid on the bottom plate of the shaft, A moving sled is mounted on the lateral movement rail, and the reaction force platform is mounted on the moving sled; A lateral movement means for laterally moving the pivotal movement system is provided, the lateral movement means includes a second pivot support part pivotally connected to the reaction base, a second locking part locked to a part of the lateral movement rail, and a lateral movement jack connecting the second pivot support part and the second locking part; The lateral movement rail is provided with second engaged portions at predetermined intervals in a longitudinal direction thereof, to which the second engaging portions are engaged, When the lateral movement jack is extended with the second engaging portion engaged with the second engaged portion, the lateral movement system moves laterally by a predetermined length by applying a reaction force to the lateral movement rail and the bottom plate, After the rotary movement system has moved laterally a predetermined length, when the lateral movement jack is contracted, the second engaging portion disengages from the second engaged portion and moves to the next second engaged portion.

[0024] According to this aspect, the reaction base of the pivoting movement system of the present invention is mounted on a moving sled which is mounted on a lateral movement rail laid on the bottom slab of the shaft, and the lateral movement means moves the pivoting movement system laterally along the lateral movement rail, thereby enabling anyone to operate it and achieving smooth and safe lateral movement of the shield tunneling machine. In addition, the lateral movement means comprises a second rotating support portion connected to the reaction force stand, a second engaging portion engaged with a part of the lateral movement rail, and a lateral movement jack connecting these, and the lateral movement jack extends with the second engaging portion engaged with second engaged portions provided at a predetermined interval on the lateral movement rail, thereby causing the pivotal movement system to move laterally a predetermined length, and when the lateral movement jack contracts after the pivotal movement system has moved lateral a predetermined length, the second engaging portion disengages from the second engaged portion and moves to the next second engaged portion and is engaged with the second engaged portion, thereby enabling the pivotal movement system to move lateral a desired length in a stable and highly accurate manner. Here, the lateral movement means may be a device having the same configuration and specifications as the rotation means.

[0025] In another aspect of the lateral movement system for a shield tunneling machine according to the present invention, The second engaged portion is a engaging hole, the second locking portion is a reaction piece having a locking pin disposed below, and a third inclined surface inclined toward a lower end of the locking pin is provided on the front side of the locking pin in the lateral movement direction of the rotational movement system; When the second engaging portion is disengaged from the second engaged portion, the third inclined surface guides the engagement and disengagement along an edge of the engagement hole.

[0026] According to the present embodiment, a third inclined surface inclined toward the lower end of the locking pin (inclined diagonally upward in the lateral movement direction) is provided in front of the locking pin, which is the second locking part, in the lateral movement direction of the pivoting movement system, and the third inclined surface of the locking pin guides the engagement and disengagement along the edge of the locking hole, which is the second locked part, thereby achieving smooth engagement and disengagement of the locking pin from the locking hole when the lateral movement jack is retracted.

[0027] In another aspect of the lateral movement system for a shield tunneling machine according to the present invention, A fourth inclined surface that slides against the top end of the lateral movement rail is provided in the locking hole at the front in the lateral movement direction of the rotational movement system, When the second engaging portion is disengaged from the second engaged portion, the third inclined surface is guided along the fourth inclined surface.

[0028] According to this aspect, a fourth inclined surface (inclined diagonally upward in the lateral movement direction) that slides against the top end of the lateral movement rail is provided in front of the lateral movement direction of the pivoting movement system at the locking hole, and the third inclined surface of the locking pin is guided along the fourth inclined surface for engagement and disengagement, thereby achieving even smoother engagement and disengagement of the locking pin from the locking hole when the lateral movement jack is retracted.

[0029] In another aspect of the lateral movement system for a shield tunneling machine according to the present invention, The rotation movement system includes a lifting jack for lifting and lowering the reaction force stand, When the lifting jack is jacked down, the reaction base is brought to the bottom and the turntable is rotated. When the lifting jack is jacked up, the reaction base is lifted and the moving sled is placed on the lateral movement rail, and when the lifting jack is jacked down, the reaction base is placed on the moving sled, and a lateral movement posture is formed.

[0030] According to this aspect, the reaction force base is raised and lowered using a lifting jack provided in the rotary movement system, and a rotary position is formed on the turntable and a lateral movement position is formed by rearranging the reaction force base onto the moving sled, thereby achieving smooth rotary movement and lateral movement of the shield tunneling machine. Effect of the Invention

[0031] According to the shield tunneling machine rotational movement system and lateral movement system of the present invention, in construction in which the shield tunneling machine is rotated and moved laterally inside a vertical shaft, the operation of a U-turn device by a specific specialized contractor is unnecessary, and anyone can operate it, achieving smooth and safe rotational and lateral movement of the shield tunneling machine. [Brief description of the drawings]

[0032] [Figure 1A] This is a plan view showing an example of a rotational movement system according to an embodiment equipped with a shield machine moving from the reach of the shaft to the inside. [Figure 1B] 1 is a plan view showing a state in which an example of a lateral movement system according to an embodiment including a pivotal movement system moves laterally and the pivotal movement system rotates. FIG. [Figure 1C] FIG. 13 is a plan view showing the lateral movement system moving to the starting portion of the shaft. [Diagram 2] FIG. 2 is a side view of an example of a rotational movement system according to an embodiment. [Diagram 3] 1 is a diagram showing an example of a rotational movement system according to an embodiment, as viewed obliquely from above. [Figure 4] FIG. 4 is an enlarged view of part IV in FIG. 3, and is a perspective view showing a state in which the first rotation support part of the rotating means is connected to the turntable and the first locking part is locked to the first locked part of the reaction force stand. [Diagram 5] 5 is an enlarged view of a V portion in FIG. 4, and is a perspective view of a first locking portion provided on a grooved guide rail, as viewed obliquely from above. FIG. [Figure 6]1A shows the state in which the pivot jack is extended and the locking pin receives a reaction force from the locking hole, causing the pivot means to rotate the turntable; FIG. 1B shows the state in which the pivot jack is contracted and the locking pin is in the process of disengaging from the locking hole; and FIG. 1C shows the state in which the pivot jack is further contracted and the locking pin has completely disengaged from the locking hole. [Figure 7] FIG. 2 is a longitudinal cross-sectional view of an inner ring and an outer ring that constitute a turntable, cut at their diameter positions. [Figure 8] 8 is an enlarged view of a portion VIII in FIG. 7, illustrating a load transfer mechanism and a rotation mechanism formed by a mounting base, a turntable, and a reaction base. FIG. [Figure 9] FIG. 13 is a diagram illustrating a state in which a transportation sled is mounted on a lateral movement rail, a reaction force stand is mounted on the transportation sled, and the rotary transportation system is moved laterally by a lateral movement means. [Figure 10] 13 is a diagram illustrating a state in which the locking pin of the reaction piece receives a reaction force from the locking hole of the lateral movement rail. FIG. [Figure 11] FIG. 1 is a perspective view illustrating an example of a rotational movement system according to an embodiment. [Figure 12] FIG. 13 is a perspective view showing the pivoting movement system aligned in the interior reach of the shaft. [Figure 13] This is an oblique view showing the state in which the shield machine that has reached the reach section is pulled into the rotating movement system. [Figure 14] This is an oblique view showing the state in which, after the shield machine has been mounted on the mounting stand, the lifting jack has been jacked up to lift the reaction stand, and the moving sled has been placed on the lateral movement rail. [Figure 15] 13 is a perspective view showing a state in which the lifting jack is jacked down and the reaction force base is mounted on the moving sled, forming a lateral movement posture. FIG. [Figure 16] 13 is a perspective view showing a state in which the lifting jack is jacked up to lift up the reaction force stand at the pivotal movement position. FIG. [Figure 17]13 is a perspective view showing a state in which the moving sled has been removed from the lateral movement rail, the lifting jack has been jacked down, and the reaction base has landed on the bottom slab. FIG. [Figure 18] FIG. 13 is a perspective view showing a state in which the rotating jack is extended to receive a reaction force from the reaction stand, thereby rotating the turntable. [Figure 19] 13 is a perspective view showing a state in which the rotation jack is contracted and the locking pin, which is the first locking portion, moves to and is locked in the locking hole, which is the next first locked portion. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0033] Hereinafter, a rotational movement system and a lateral movement system for a shield machine according to an embodiment will be described with reference to the accompanying drawings. In this specification and the drawings, substantially identical components are designated by the same reference numerals to avoid redundant description.

[0034] [Pivot movement system and lateral movement system of the shield tunneling machine according to the embodiment] An example of a rotation movement system and a lateral movement system of a shield machine according to an embodiment will be described with reference to Figs. 1 to 19 . Here, Fig. 1A, Fig. 1B, and Fig. 1C are respectively a plan view showing an example of a rotational movement system according to an embodiment equipped with a shield machine moving from the arrival part of a shaft to the inside, a plan view showing an example of a lateral movement system according to an embodiment equipped with a rotational movement system moving laterally and the rotational movement system rotating, and a plan view showing a state in which the lateral movement system moves to the starting part of a shaft. Also, Fig. 2 and Fig. 3 are respectively views of an example of a rotational movement system according to an embodiment seen from the side and obliquely above, Fig. 4 is an enlarged view of part IV in Fig. 3, which is a perspective view showing a state in which the first rotation support part of the rotation means is connected to the turntable and the first locking part is locked to the first locked part of the reaction force frame, and Fig. 5 is an enlarged view of part V in Fig. 4, which is a perspective view of the first locking part provided on the guide rail of the groove from obliquely above. In addition, Figure 6(a) shows the state in which the pivot jack is extended and the locking pin receives a reaction force from the locking hole, causing the pivoting means to rotate the turntable, Figure 6(b) shows the state in which the pivot jack is contracted and the locking pin is in the process of disengaging from the locking hole, and Figure 6(c) shows the state in which the pivot jack is further contracted and the locking pin has completely disengaged from the locking hole. In addition, Figure 7 is a longitudinal cross-sectional view of the inner ring and outer ring that constitute the turntable, cut at their diameter positions, Figure 8 is an enlarged view of part VIII in Figure 7, and is a diagram explaining the load transmission mechanism and rotation mechanism formed by the mounting base, turntable, and reaction base, Figure 9 is a diagram explaining a state in which a mobile sled is mounted on a lateral movement rail, the reaction base is mounted on the mobile sled, and the rotation movement system is moved laterally by the lateral movement means, and Figure 10 is a diagram explaining a state in which the locking pin of the reaction piece receives a reaction force from the locking hole of the lateral movement rail.

[0035] First, with reference to Figs. 1A to 1C, an overview of U-turn construction in which a shield machine is rotated and moved laterally inside a vertical shaft will be described.

[0036] The shaft 10 in the illustrated example is rectangular in plan view, and has, on one side wall 12, a reach section 15 where the shield machine M that has constructed the outbound tunnel reaches, and a start section 16 from which the same shield machine M departs to construct the return tunnel. The shaft 10 comes in a variety of specifications, including made of reinforced concrete, steel (steel shell), and a hybrid structure of reinforced concrete and steel shell.

[0037] Two sets of lateral movement rails 20, each consisting of two lines, are laid on the bottom slab 11 of the shaft 10, connecting the arrival section 15 and the starting section 16. The number of lateral movement rails 20 is not limited to the example shown in the figure.

[0038] A pivoting movement system 70, which mounts the shield tunneling machine M and rotates it a predetermined angle, is installed on the multiple lateral movement rails 20 so as to be able to move laterally freely. A lateral movement system 90 is formed by these lateral movement rails 20, multiple movement sleds 26 (see Figure 9, which can also be referred to as movement pieces) that are placed on the lateral movement rails 20 and on which the pivoting movement system 70 is mounted, and lateral movement means 80 (see Figure 9) that laterally moves the pivoting movement system 70 mounted on the multiple movement sleds 26.

[0039] As shown in Fig. 1A, the shield tunneling machine M is pulled into the interior of the shaft 10 in the X1 direction from the reaching portion 15 of the shaft 10, and is mounted on the rotary movement system 70. In the state shown in Fig. 1A, the cutter head of the shield tunneling machine M faces the side wall 13 opposite to the side wall 12.

[0040] 1B, lateral movement system 90 causes pivoting movement system 70 carrying shield tunneling machine M to move laterally in the X2 direction along lateral movement rails 20 toward starting section 16, and the lateral movement is stopped, for example, halfway between arrival section 15 and starting section 16. At this stopped position, pivoting movement system 70 pivots shield tunneling machine M by a predetermined angle (180 degrees in the illustrated example) in the X3 direction. This pivoting causes the cutter head of shield tunneling machine M to face side wall 12.

[0041] Next, as shown in Figure 1C, the rotational movement system 70 mounting the shield tunneling machine M rotated 180 degrees is moved laterally in the X4 direction by the lateral movement system 90 to a position directly in front of the launch section 16, thereby completing preparations for starting for constructing the return tunnel via the launch section 16.

[0042] Here, in addition to the illustrated example, the form of U-turn construction may be, for example, a form in which the shield tunneling machine M retracted from the reach section 15 is first rotated 180 degrees by the rotary movement system 70, and then the shield tunneling machine M is continuously moved laterally to a position in front of the starting section 16 by the lateral movement system 90, or a form in which the shield tunneling machine M retracted from the reach section 15 is continuously moved laterally to a position in front of the starting section 16 by the lateral movement system 90, and then the shield tunneling machine M is rotated 180 degrees at the front position by the rotary movement system 70.

[0043] Next, an example of a rotation movement system according to an embodiment will be described with reference to FIGS.

[0044] The rotating movement system 70 comprises a mounting stand 40 on which the shield tunneling machine M is placed, a reaction stand 30 which is seated on the bottom slab 11 of the shaft 10, a ring-shaped turntable 50 which is integral with the mounting stand 40 and supported rotatably relative to the reaction stand 30, and a rotating means 60 which rotates the turntable 50.

[0045] The mounting platform 40 comprises a stack of multiple flat plate-shaped steel materials 41, and a mounting steel material 42 stacked on top of the stack, the upper surface of which has a curvature similar to the steel shell of the shield tunneling machine M, and on which the shield tunneling machine M is directly placed, and each steel material is joined to each other by bolts or the like not shown.

[0046] The rotation means 60 comprises a first rotational support portion 61 which is rotatably connected to the turntable 50, a first engagement portion 62 which is engaged with a part of the reaction force stand 30, and a rotation jack 63 which connects the first rotational support portion 61 and the first engagement portion 62.

[0047] As shown in FIG. 3, a total of four rotating means 60 are provided at 90 degree intervals on the outer periphery of the turntable 50.

[0048] The first rotating support portion 61 is an alignment pin provided at one end of the rotating jack 63, and alignment pin fixing pieces 51 are attached at 90 degree intervals on the outer peripheral side of the turntable 50, and the alignment pins 61 inserted into through holes (not shown) provided in the alignment pin fixing pieces 51 are fixed to alignment pin holes (not shown) that are similarly opened at 90 degree intervals on the upper surface of the reaction force stand 30.

[0049] In this example, the shield tunneling machine M is rotated 180 degrees by rotating the turntable 50, and by visually checking the alignment pins 61 of the four rotation means 60 attached at 90 degree intervals to the turntable 50, the rotation angle of the turntable 50 can be confirmed, making it possible to ensure that the turntable 50 rotates 180 degrees with precision.

[0050] The turntable 50 is formed by an inner ring 50A and an outer ring 50B. In the illustrated example, the inner ring 50A and the reaction force base 30 are integrated by bolting or the like, and the outer ring 50B and the mounting base 40 are integrated by bolting or the like.

[0051] That is, "the turntable 50 which is integrated with the mounting base 40 and supported rotatably with respect to the reaction base 30" is more specifically "the turntable 50 having an outer ring 50B which is integrated with the mounting base 40 and an inner ring 50A which is fixed to the reaction base 30, the outer ring 50B being supported rotatably with respect to the reaction base 30." Here, the embodiment may be the opposite to the illustrated example, that is, the inner ring 50A and the mounting base 40 are integrated with each other by bolting or the like, and the outer ring 50B and the reaction base 30 are integrated with each other by bolting or the like.

[0052] When the reaction force stand 30 is seated on the bottom slab 11, the four rotating means 60 are driven synchronously, causing the outer ring 50B to rotate relative to the inner ring 50A, and causing the shield tunneling machine M, which is placed on the mounting stand 40 which is integrated with the outer ring 50B, to rotate.

[0053] 3 and 4, a grooved guide rail 35 is provided on the upper surface of the reaction force stand 30, outside the outline of the turntable 50. The bottom surface of the guide rail 35 is provided with first locked portions 36, to which the first locking portion 62 of the rotating means 60 is locked, at a predetermined interval in the longitudinal direction of the guide rail 35.

[0054] Here, the first locking portion 62 is a locking pin that is inserted into a through hole (not shown) provided at the other end of the rotating jack 63.

[0055] On the other hand, the first locked portion 36 to which the lower end of the locking pin 62 is locked is a locking hole. As shown in Figures 4 and 5, the locking hole 36 has a track-like shape (horizontally elongated elliptical shape) that is long in the longitudinal direction of the guide rail 35 when viewed in plan.

[0056] Furthermore, a first inclined surface 36b that slides against the top end of the guide rail 35 is provided at the front of the locking hole 36 in the rotation direction of the turntable. In addition, in Fig. 5, a reaction hole wall 36a that absorbs a reaction force from the locking pin 62 is provided at the rear of the locking hole 36 in the rotation direction of the turntable.

[0057] In contrast, as shown in FIG. 6(a), the locking pin 62 has a second inclined surface 62a inclined toward the lower end thereof at the front in the direction of rotation of the turntable, and the inclination angles of the first inclined surface 36b of the locking hole 36 and the second inclined surface 62a of the locking pin 62 from the horizontal plane are set to be approximately the same.

[0058] Here, the manner in which the turntable 50 is rotated by the rotating means 60 will be described with reference to Fig. 6. Note that Fig. 6 is a diagram illustrating only the grooved guide rail 35, the first locked portion 36, and the first locking portion 62.

[0059] First, as shown in Fig. 6(a), the locking pin 62 at one end of the rotating means 60 is locked into one of the locking holes 36 provided in the guide rail 35. In this locked state, the rear side of the locking pin 62 abuts against the reaction hole wall 36a of the locking hole 36, and at this stage the rotating jack 63 is in a contracted state as shown in Figs.

[0060] Next, when the rotating jack 63 is driven and extended as shown in Figure 2, the locking pin 62 receives a reaction force from the reaction hole wall 36a (and the reaction base 30 seated on the bottom slab 11), thereby rotating the outer ring 50B of the turntable 50 in the Y1 direction.

[0061] In the illustrated example, the rotating jacks 63 of the four rotating means 60 are driven synchronously, and the outer ring 50B and the shield tunneling machine M placed on the mounting stand 40 are rotated and moved by a rotation angle corresponding to the extension of the rotating jacks 63.

[0062] 6(b), by contracting the rotation jack 63, the locking pin 62 behind the rotation jack 63 moves in the rotation direction of the turntable. At this time, the second inclined surface 62a of the locking pin 62 is guided in the Y2 direction along the first inclined surface 36b of the locking hole 36, so that the locking pin 62 is smoothly engaged with and disengaged from the locking hole 36.

[0063] 4, a rotation prevention piece 65 is provided on the top end of the locking pin 62, and the rotation prevention piece 65 is engaged with the rear side surface (the side surface opposite to the rotation direction of the turntable) of the rotating jack 63. In this way, the rotation prevention piece 65 of the locking pin 62 is engaged with a part of the rotating jack 63 to suppress the rotation of the locking pin 62, thereby regulating the direction of the locking pin 62 and ensuring that the second inclined surface 62a rides up onto the first inclined surface 36b.

[0064] Next, as shown in FIG. 6(c), the locking pin 62 that has been disengaged from the locking hole 36 moves in the Y3 direction toward the next locking hole 36 and is locked in the next locking hole 36.

[0065] That is, the interval between the locking holes 36 provided in the longitudinal direction of the guide rail 35 is approximately the same as the stroke length set for the rotating jack 63 .

[0066] In this way, when the rotating jack 63 is extended, the locking pin 62 receives a reaction force from the locking hole 36 to rotate the turntable 50B, and when the rotating jack 63 is retracted, the locking pin 62 smoothly disengages from the locking hole 36 and moves to the next locking hole 36 where it is locked. By repeating this a predetermined number of times, it is possible to achieve smooth and highly precise rotational movement of the shield tunneling machine M at the desired rotation angle (180 degrees in the illustrated example) while receiving a reaction force from the reaction force stand 30 that is seated on the bottom slab 11.

[0067] Here, in the illustrated example, both the locking pin 62 and the locking hole 36 have an inclined surface, but it is also possible for only one of them to have an inclined surface.

[0068] Next, a specific configuration of the turntable 50 and various mechanisms formed by the turntable 50 will be described with reference to FIGS.

[0069] An inner ring 50A constituting the turntable 50 has an outer peripheral surface provided with a concave rib 53 extending around the entire circumference, and an outer ring 50B constituting the turntable 50 has an inner peripheral surface provided with a convex rib 54 received in the concave rib 53. Three groove spaces 55A, 55B, 55C extending in the rotation direction are formed by the upper, side, and lower surfaces of the convex rib 54 and the concave rib 53. A plurality of rollers 56A, 56B, 56C are received in each of the groove spaces 55A, 55B, 55C.

[0070] In this way, the three groove spaces 55A, 55B, 55C formed between the inner ring 50A and the outer ring 50B and the multiple rollers 56A, 56B, 56C housed in each of these groove spaces 55A, 55B, 55C form a rotation mechanism 58 that smoothly rotates the outer ring 50B relative to the inner ring 50A.

[0071] Furthermore, as shown in Figure 8, a load transmission mechanism 59 is formed which stably transmits the load of the shield tunneling machine M from the mounting base 40 via the outer ring 50B, the convex strip 54, the roller 56C, and the inner ring 50A to the reaction force base 30 in the Y5 direction, Y6 direction, and Y7 direction.

[0072] Roller 56C distributes the applied load by providing line support, which eliminates the problem of the iron balls digging into the contacting member due to excessive concentrated load when a load is supported at points, as occurs with bearings made of iron balls, etc., and contributes to the formation of a load transmission mechanism 59 that can transmit loads stably.

[0073] 8, the reaction force stand 30 is formed as a whole by integrating a stack of multiple annular, plate-shaped steel materials 31 with connecting steel materials 33, placing an upper steel material 32 equipped with guide rails 35 on the stack, and integrating the stack and the upper steel material 32 with separate connecting steel materials 34. By adjusting the thickness and number of steel materials 31, the height of the reaction force stand 30 can be adjusted as desired.

[0074] Next, an example of a lateral movement system according to an embodiment will be described with reference to FIGS.

[0075] As shown in Fig. 9, the lateral movement system 90 is a system for laterally moving the pivoting movement system 70 on which the shield tunneling machine M is placed along the lateral movement rail 20. As shown in Fig. 11, the pivoting movement system 70 is disposed inside a retractable platform 30A (another example of a reaction platform) formed of a plurality of shaped steel members. The lateral movement system 90 shown in Fig. 9 includes a lateral movement rail 20 laid so as to connect the arrival section 15 and the departure section 16 on the bottom slab 11 of the shaft 10, a plurality of moving sleds 26 on which the retractable platform 30A equipped with the pivoting movement system 70 therein is mounted, and a lateral movement means 80 for laterally moving the retractable platform 30A equipped with the pivoting movement system 70 therein.

[0076] Two sets of lateral movement rails 20, each consisting of two rows, are laid on the bottom slab 11 of the shaft 10, joined by anchor bars or the like. The lateral movement rails 20 are provided with second locked portions 22 spaced apart in the longitudinal direction, and a pair of deviation prevention projections 24 extending along the longitudinal direction of the lateral movement rails 20 are provided on the left and right positions of the second locked portions 22.

[0077] The anti-deviation protrusion 24 is a protrusion for preventing the second engaging portion 82, which forms the lateral movement means 80 and is engaged with the second engaged portion 22, from departing in the left-right direction when moving to the next second engaged portion 22.

[0078] A total of four lateral movement means 80 are connected to the retractable base 30A so as to correspond to the total of four lateral movement rails 20. The lateral movement means 80 includes a second pivot bearing portion 81 rotatably connected to the retractable base 30A, a second locking portion 82 locked to the second locked portion 22 of the lateral movement rail 20, and a lateral movement jack 83 connecting the second pivot bearing portion 81 and the second locking portion 82.

[0079] Here, the lateral movement jack 83 may be a different type of jack from the pivoting jack 63, for example, but since it rotates or moves a similar heavy object laterally, a jack of the same type (with the same performance) can be used.

[0080] 9 and 10, the second locked portion 22 is a locking hole. Also, as shown in Fig. 10, the second locking portion is a reaction piece 82 having a locking pin 84 provided below.

[0081] The locking pin 84 has a third inclined surface 84a inclined toward the lower end thereof at the front in the lateral movement direction of the rotational movement system 70.

[0082] As shown in Fig. 10, when the locking pin 84 is in contact with the reaction hole wall 22a at the rear of the locking hole 22 and the lateral movement jack 83 is extended, the locking pin 84 receives a reaction force from the reaction hole wall 22a (and the bottom plate 11), so that the moving sled 26, which is mounted on the lateral movement rail 20 and has the pivoting movement system 70 placed thereon, can be moved laterally along the lateral movement rail 20. At this time, the four lateral movement jacks 83 are driven synchronously. The retractable platform 30A equipped with the pivoting movement system 70 therein is moved laterally by the amount of extension of the lateral movement jack 83.

[0083] Next, by retracting the lateral movement jack 83, the locking pin 84 of the reaction piece 82 behind the lateral movement jack 83 is smoothly engaged and disengaged from the locking hole 22 as its third inclined surface 84a rides up along the edge of the riding wall 22b of the locking hole 22.

[0084] Here, in the illustrated example, the climbing wall 22b does not have an inclined surface, but for example, the climbing wall 22b may have a fourth inclined surface (having an inclination angle approximately the same as that of the third inclined surface 84a) that slides against the top end of the lateral movement rail 20.

[0085] The locking pin 84 that has been disengaged from the locking hole 22 is locked in the next locking hole 22. That is, the interval between each of the locking holes 22 provided in the longitudinal direction of the lateral movement rail 20 is approximately the same length as the stroke length set for the lateral movement jack 83.

[0086] In this way, when the lateral movement jack 83 extends, the locking pin 84 receives a reaction force from the locking hole 22 to move the retractable platform 30A equipped with the pivoting movement system 70 therein laterally, and when the lateral movement jack 83 is retracted, the locking pin 84 smoothly disengages from the locking hole 22 and moves to the next locking hole 22 to be locked. By repeating this a predetermined number of times, it is possible to achieve smooth and highly accurate lateral movement of the pivoting movement system 70 by the desired lateral movement distance while receiving a reaction force from the lateral movement rail 20 laid on the bottom slab 11.

[0087] FIG. 11 shows a state in which the pivoting movement system 70 has retreated to the starting section 16 side as the shield tunneling machine M reaches the reaching section 15 of the shaft 10.

[0088] 11 shows a structure in which the rotary movement system 70 shown in FIGS. 2 to 4 is incorporated inside a pull-in platform 30A in which a number of shaped steel members (H-shaped steel members) are arranged at intervals in the pull-in and push-out directions of the shield tunneling machine M and their left and right ends are connected by shaped steel members extending in the pull-in and push-out directions. Four lifting jacks 45 are provided around the mounting platform 40 of the pull-in platform 30A. This structure moves laterally inside the shaft 10 between the starting section 16 and the reaching section 15 along the lateral movement rails 20.

[0089] After the shield tunneling machine M reaches the reach section 15, as shown in Figure 12, the retractable platform 30A, which has a rotating movement system 70 built in, is moved laterally along the lateral movement rail 20 and aligned in front of the shield tunneling machine M that has reached the reach section 15.

[0090] 13, the retraction frame 30A and the reaction frame 30 of the rotary movement system 70 are then landed on the bottom slab 11, and the shield tunneling machine M is retracted in the Z1 direction into the shaft M. Here, in the illustrated example, the height of the retraction frame 30A (and the reaction frame 30) is adjusted by the height adjustment piece 37.

[0091] 14, the four lifting jacks 45 are jacked up in the Z2 direction to lift up the retractable platform 30A (and the reaction force platform 30), and the moving sled 26 is placed on the lateral movement rails 20 below the retractable platform 30A (and the reaction force platform 30). In the illustrated example, two moving sleds 26 are placed on each set of lateral movement rails 20 with an interval between them in the lateral movement direction.

[0092] Next, as shown in FIG. 15, the four lifting jacks 45 are jacked down in the Z3 direction, and the retractable platform 30A (and the reaction force platform 30) is mounted on the moving sled .

[0093] Next, a lateral movement means 80 shown in Fig. 9 is installed with respect to the retractable platform 30A (and the reaction force platform 30) and the lateral movement rail 20, and the retractable platform 30A, which includes the pivoting movement system 70 mounted on the moving sled 26, is moved laterally along the lateral movement rail 20 by the lateral movement means 80 in the same manner as already described with reference to Figs. 9 and 10. More specifically, as described with reference to Fig. 1B, the retractable platform 30A including the pivoting movement system 70 is moved laterally to approximately the midpoint between the arrival section 15 and the departure section 16, and the lateral movement is stopped there.

[0094] Next, as shown in FIG. 16, the four lifting jacks 45 are jacked up in the Z4 direction to lift up the pull-in platform 30A (and the reaction force platform 30), and the moving sled 26 below the pull-in platform 30A is removed.

[0095] 17, the four lifting jacks 45 are jacked down in the Z5 direction to land the retractable platform 30A (and the reaction platform 30) on the bottom slab 11. When the retractable platform 30A (and the reaction platform 30) has landed on the bottom, the turntable 50 can rotate the mounted shield machine M while receiving a reaction force from the bottom slab 11.

[0096] Furthermore, as is clear from Figure 17, when the lifting jack 45 is jacked down, the retractable stand 30A (and the reaction stand 30) has a height that positions it lower than the lifting jack 45, so that the lifting jack 45 is raised upward from the bottom slab 11.

[0097] 18 and 19, the rotating jacks 63 of the rotating means 60 are driven (more specifically, the rotating jacks 63 of the four rotating means 60 installed at 90 degree intervals are driven synchronously), the rotating jacks 63 expand to rotate the outer ring 50B, and then the rotating jacks 63 contract to move the locking pin 62 to the next locking hole 36 in the guide rail 35 and lock it. By repeating this a predetermined number of times, the shield tunneling machine M is rotated 180 degrees.

[0098] Finally, as described with reference to FIG. 1C, the retractable platform 30A having the rotary movement system 70 therein is moved laterally by the lateral movement system 90 until it is aligned with the front position of the launch section 16.

[0099] According to the illustrated shield tunneling machine rotational movement system 70 and lateral movement system 90, in construction in which the shield tunneling machine M is rotated and moved laterally inside the shaft 10, the operation of a U-turn device by a specific specialized contractor is unnecessary, and anyone can operate it, thereby achieving smooth and safe rotational and lateral movement of the shield tunneling machine M.

[0100] In addition, the present invention is not limited to the configuration shown here, and may be implemented in other embodiments in which other components are combined with the configurations and the like of the above-mentioned embodiment. In this regard, the present invention may be modified within the scope of the gist of the present invention, and may be appropriately determined according to the application form. [Explanation of symbols]

[0101] 10: Shaft 11: Bottom plate 12,13: Side wall 15:Achievement part 16: Launch section 20: Lateral movement rail 22: Second locked part (locking hole) 22a: Reaction hole wall 22b: Climbing wall 24: Anti-deviation protrusion 26: Transportation sled 30:Reaction force frame 30A: Retractable stand (reaction stand) 31: Steel material 32: Upper steel material 33, 34: Steel joint 35: Guide rail (grooved guide rail) 36: First locked part (locking hole) 36a: Reaction hole wall 36b: 1st slope 37: Height adjustment piece 40: Mounting stand 41: Steel material 42: Steel material placed 45: Lifting jack 50: Turntable 50A: Inner ring 50B: Outer ring 51: Alignment pin fixing piece 52: Alignment pin hole 53: Groove 54: Convex stripe 55A, 55B, 55C: Groove space 56A, 56B, 56C: Roller 58: Rotating mechanism 59: Load transmission mechanism 60: Rotating means 61: First rotating support part (alignment pin) 62: First locking portion (locking pin) 62a: 2nd slope 63: Rotating jack 65: Anti-rotation piece 70: Rotating movement system 80: Lateral movement means 81: 2nd rotating support part 82: Second locking part (reaction piece) 83: Horizontal movement jack 84: Locking pin 84a: Third slope 90: Lateral movement system M: Shield tunneling machine

Claims

1. A rotation movement system for a shield tunneling machine that is installed inside a vertical shaft and rotates a shield tunneling machine that has reached the vertical shaft, A mounting stand on which the shield machine is mounted; A reaction stand that is placed on the bottom plate of the shaft; a turntable that is integrated with the mounting base, rotatably supported with respect to the reaction base, and has a ring shape; A rotating means for rotating the turntable, the rotating means includes a first rotation support part rotatably connected to the turntable, a first locking part locked to a part of the reaction base, and a rotation jack connecting the first rotation support part and the first locking part; A grooved guide rail is provided on the reaction base outside an outer periphery of the turntable, and a first engaging portion is provided at a predetermined interval in the longitudinal direction of the guide rail to engage with the first engaging portion; When the rotating jack is extended in a state in which the first engaging portion is engaged with the first engaged portion, the turntable rotates by a predetermined angle by receiving a reaction force from the reaction base, A rotational movement system for a shield tunneling machine, characterized in that after the turntable rotates a predetermined angle, when the rotating jack contracts, the first engaging portion disengages from the first engaged portion and moves to the next first engaged portion.

2. The first engaged portion is a locking hole, and the first engaging portion is a locking pin, A rotational movement system for a shield tunneling machine as described in claim 1, characterized in that a first inclined surface that slides against the top end of the guide rail is provided in the engagement hole at the front in the rotational direction of the turntable, and when the first engagement portion is engaged and disengaged from the first engaged portion, the first engagement portion is guided along the first inclined surface for disengagement.

3. The locking pin has a second inclined surface inclined toward a lower end thereof at a front side in a rotation direction of the turntable, 3. A rotational movement system for a shield machine as described in claim 2, characterized in that when the first engaging portion is disengaged from the first engaged portion, the second inclined surface is guided along the first inclined surface for disengagement.

4. The locking pin is arranged to be movable up and down inside a through hole extending in a vertical direction that is provided at one end of the rotating jack, The shield tunneling machine pivoting movement system of claim 3, characterized in that the locking pin is provided with a rotation prevention piece that engages with one side of one end of the pivoting jack to prevent the locking pin from rotating, and the rotation prevention piece is adapted to maintain the position of the second inclined surface relative to the first inclined surface.

5. A plurality of the rotating means are attached to the turntable, 2. The rotational movement system for a shield machine according to claim 1, wherein the driving of each of the rotation jacks provided in the plurality of rotation means is performed synchronously.

6. The turntable includes an inner ring and an outer ring. One of the inner ring and the outer ring is joined to the mounting base, and the other is joined to the reaction base, The outer circumferential surface of the inner ring is provided with a groove, The inner circumferential surface of the outer ring is provided with a protrusion that is received in the recess, A rotational movement system for a shield tunneling machine as described in claim 2, characterized in that a plurality of rollers are accommodated in each of three groove spaces formed by the upper, side and lower surfaces of the convex rib and the concave rib and extending in the rotational direction, thereby forming a rotation mechanism between the inner ring and the outer ring and a load transmission mechanism from the mounting base to the reaction force base.

7. The turntable has a plurality of alignment pin holes at predetermined angular intervals in a circumferential direction thereof, 2. The rotational movement system of a shield tunneling machine as described in claim 1, characterized in that the first rotational support portions of the multiple rotation means are provided with alignment pins, and the alignment pins of each of the first rotational support portions are inserted into the corresponding alignment pin holes and attached to the turntable.

8. A lateral movement system for a shield tunneling machine, which laterally moves a rotational movement system for a shield tunneling machine according to any one of claims 1 to 7 on which the shield tunneling machine is placed, The shaft includes a reach section to which the shield tunneling machine reaches and a start section from which the shield tunneling machine starts, A lateral movement rail connecting the arrival section and the starting section is laid on the bottom plate of the shaft, A moving sled is mounted on the lateral movement rail, and the reaction force platform is mounted on the moving sled; A lateral movement means for laterally moving the pivotal movement system is provided, the lateral movement means includes a second pivot support part pivotally connected to the reaction base, a second locking part locked to a part of the lateral movement rail, and a lateral movement jack connecting the second pivot support part and the second locking part; The lateral movement rail is provided with second engaged portions at predetermined intervals in a longitudinal direction thereof, to which the second engaging portions are engaged, When the lateral movement jack is extended with the second engaging portion engaged with the second engaged portion, a reaction force is applied to the lateral movement rail and the bottom plate, and the pivot movement system moves laterally by a predetermined length, A lateral movement system for a shield tunneling machine, characterized in that after a predetermined length of lateral movement of the pivotal movement system, when the lateral movement jack is contracted, the second engaging portion disengages from the second engaged portion and moves to the next second engaged portion.

9. The second engaged portion is a engaging hole, the second engaging portion is a reaction piece having an engaging pin disposed below the engaging pin, and a third inclined surface inclined toward a lower end of the engaging pin is provided on the front side of the engaging pin in the lateral movement direction of the rotational movement system; The lateral movement system for a shield machine as described in claim 8, characterized in that when the second engaging portion is engaged and disengaged from the second engaged portion, the third inclined surface guides the engagement and disengagement along the edge of the engaging hole.

10. A fourth inclined surface that slides against a top end of the lateral movement rail is provided in the locking hole at a front side in the lateral movement direction of the rotational movement system, The lateral movement system for a shield machine as described in claim 9, characterized in that when the second engaging portion is disengaged from the second engaged portion, the third inclined surface is guided along the fourth inclined surface for disengagement.

11. The rotation movement system includes a lifting jack for lifting and lowering the reaction force stand, When the lifting jack is jacked down, the reaction base is brought to the bottom and the turntable is rotated.

9. The lateral movement system for a shield tunneling machine as described in claim 8, characterized in that when the lifting jack is jacked up, the reaction force base is lifted and the moving sled is placed on the lateral movement rail, and the lifting jack is jacked down to reposition the reaction force base on the moving sled, thereby forming a lateral movement posture.

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