JP2010222883A - Truck replacing system in vertical shaft - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a truck replacing system in a vertical shaft, which can effectively shorten the time until a plurality of trucks for conveying excavated muck etc. return to excavation assembling job site after starting therefrom. <P>SOLUTION: This truck replacing system 10, which is provided in the vertical shaft 21 constructed by shield work, replaces the trucks 11a, 11b, 11c and 12, which move along a rail 13 laid on the inside 22 of a tunnel pit, by the drive of a storage battery locomotive 14. The truck replacing system 10 includes a central fixed portion 16 which has a fixed rail 15 provided on the extension of the rail 13, and a turn table 18 which is equipped with a donut-like planar shape, which comprises a plurality of moving rails 17 elongated in a radial direction centering on the central fixed portion 16 and which can be circumferentially turned on the outer periphery of the central fixed portion 16. The turn table 18 is provided with the moving rails 17, the number of which is twice as large as that of the plurality of reciprocating trucks 11a, 11b, 11c and 12. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a bogie exchanging device in a shaft for replacing a plurality of carts that reciprocate in the tunnel shaft in a shaft constructed by shield tunnel construction.

  In the shield tunnel construction, a segment tunnel is formed in the ground by excavating the shield machine from the start shaft to the arrival shaft while assembling the segments in the shape of a ring behind the shield machine. In shield tunnel construction, shafts such as start shafts and reach shafts are formed by drilling vertically from the ground surface to a predetermined depth where tunnels are installed in a limited area, for example, in a narrow work yard in an urban area. Through these shafts, various equipment is carried into the tunnel mine by the shield machine, and excavation sludge is carried out from the tunnel mine to the ground.

  Also, in shield tunnel construction, a rail consisting of a pair of rail members is laid in the tunnel mine, and a plurality of carts such as a Zuritro cart and a segment cart along the installed rail are used as a driving cart such as a servo loco or a battery loco. By connecting and driving these drive trolleys, the excavation assembly work site by the shield excavator and the shaft are reciprocated between the excavation assembly work site and the shaft. Equipment such as segments is brought into the work site.

  In addition, overhead heavy equipment such as overhead cranes are installed above the shafts of the shafts, and these lifting heavy machines carry out excavation sludge transported to the vertical shafts by the carriages, or at the excavation assembly work site. Equipment such as segments to be transported is loaded onto the bogie in the shaft.

  Various devices called so-called traversers have been developed to efficiently carry out operations such as unloading excavation through the shaft and loading materials and equipment (see, for example, Patent Document 1). .

Japanese Patent Laid-Open No. 10-18800

  However, in the conventional traverser device, it is possible to move a plurality of carts in a short time and efficiently in a short time to a working position where unloading excavation and loading of equipment and the like are performed by a lifting heavy machine. However, while work such as unloading excavation and carrying in equipment is carried out on one truck at the work position by the lifting heavy machine, other trucks cannot perform these work at the same time. After the carts are moved from the excavation assembly work site into the shaft, it takes a considerable amount of time to send them again to the excavation assembly work site.

  In particular, when the excavation by the shield excavator progresses and the distance from the vertical shaft through the tunnel tunnel to the excavation assembly work site increases, the excavation of the shield excavator for a predetermined ring and the assembly work of the segment at the excavation assembly operation site Because the time required for the carriage carrying the excavation gap and the segment to reciprocate between the excavation assembly work site and the shaft and the work time performed by the lifting heavy machine in the shaft become longer than the time spent for the The travel time and work time of the machine become critical, which greatly affects the shortening of the construction period. Therefore, it is desired to shorten as much as possible the time required for a plurality of carriages carrying excavation gaps, segments, etc., to depart from the excavation assembly work site and return to the excavation assembly operation site.

  On the other hand, in order to shorten such time, for example, in a vertical shaft, the lifting / lowering speed at which excavation sludge and equipment are lifted or lowered by a heavy lifting machine is increased, and the working time by the lifting heavy machine is reduced. However, there are legal restrictions on the hoisting speed of hoisting heavy machines such as overhead cranes, so there is a limit to shortening the time.

  The present invention relates to a dolly in a shaft that can effectively shorten the time required for a plurality of carriages carrying excavations, segments, etc., to depart from the excavation assembly work site and return to the excavation assembly work site again. An object is to provide a replacement device.

  The present invention is a trolley exchanging device for replacing a plurality of trolleys which are provided in a shaft constructed by shield tunnel construction and reciprocate along a rail laid in the tunnel mine by driving of the driving trolley, A central fixed portion having a fixed rail provided on the extension of the track, and a donut-shaped planar shape having the central fixed portion arranged in the center, and a plurality of extending in a radial direction centering on the central fixed portion The moving rail is provided with a turntable capable of rotating the outer periphery of the central fixing portion in the circumferential direction. The turntable has a number of the moving rails that is more than twice as many as the plurality of reciprocating carriages. The above object is achieved by providing a bogie replacement device in a vertical shaft provided with.

  In the bogie replacement device in the shaft according to the present invention, the central fixing portion has a circular plane shape having a diameter substantially the same as the length of the drive bogie, and the turntable is substantially the same as the length of the bogie. It is preferable to have a donut-like planar shape with a width.

  In the bogie replacement device in the shaft according to the present invention, it is preferable that the turntable is provided with twice as many moving rails as the plurality of reciprocating carts.

  According to the bogie replacement device in the vertical shaft of the present invention, it is possible to effectively reduce the time required for a plurality of bogies transporting excavation gaps and segments to return to the excavation assembly work site from the excavation assembly work site. It can be shortened.

(A) is a schematic plan view of a bogie replacement device in a vertical shaft according to a preferred embodiment of the present invention, and (b) is a cross-sectional view taken along line AA in (a). It is a schematic longitudinal cross-sectional view explaining the excavation assembly work site of shield tunnel construction. (A)-(d) is a schematic plan view explaining the condition which replace | exchanges a several trolley | bogie using the trolley | bogie replacement | exchange apparatus in the shaft which concerns on preferable one Embodiment of this invention. (A)-(d) is a schematic plan view explaining the condition which replace | exchanges a several trolley | bogie using the trolley | bogie replacement | exchange apparatus in the shaft which concerns on preferable one Embodiment of this invention.

  As shown in FIGS. 1 (a) and 1 (b), a bogie replacement device 10 in a vertical shaft according to a preferred embodiment of the present invention is based on, for example, a mud pressure shield shield machine 20 (see FIG. 2) as shield tunnel construction. In the tunnel construction, a plurality of carriages 11a that reciprocate between the vertical shaft 21 and the excavation assembly work site 23 (see FIG. 2) at the tip of the tunnel shaft 22 to convey equipment such as the excavation slot 24 and the segment 25, 11b, 11c, 12 are exchanged efficiently and smoothly in the shaft 21 until a plurality of carriages 11a, 11b, 11c, 12 start from the excavation assembly work site 23 and return to the excavation assembly work site 23 again. In order to be able to shorten the time effectively, it is installed at the bottom of the shaft 21.

  Here, as shown in FIG. 2, the mud pressure shield machine 20 fills the excavated earth and sand into the earth pressure chamber 26 and mixes it with the mud material, and fills it with the mud earth filling pressure. The excavation work is carried out while resisting the earth pressure from the earth, and the mud is excavated from the earth pressure chamber 26 through the screw conveyor 27 as the excavation slot 24 while the filling pressure in the earth pressure chamber 26 is maintained. It is a known shield machine that performs work. The mud pressure shield machine 20 is configured to assemble the segments 25 conveyed using the segment assembling device 29 into a ring shape inside the skin plate 28 behind the earth pressure chamber 26. The reaction force is obtained from 25, and the telescopic jack (not shown) can be advanced and retracted.

  Further, in the present embodiment, the excavation slot 24 discharged from the earth pressure chamber 26 via the screw conveyor 27 is transported via the earth discharge belt conveyor 28 and moved to the rear of the excavation assembly work site 23. In addition, the segment 25 assembled in a ring shape at the rear of the earth pressure chamber 26 is loaded into the segment cart 12 in the shaft 21 after being loaded on the three Zuritro carts 11a, 11b, 11c. It is conveyed to the rear of the excavation assembly work site 23.

  Furthermore, in this embodiment, the rail 13 which consists of a pair of rail member is laid in the tunnel mine 22 from the vertical shaft 21 to the excavation assembly work site 23, and three Zuritro carts 11a, 11b, 11c and a segment cart 12 are connected in order from the rear side of the digging direction X (the side of the vertical shaft 21) and arranged in series, and are connected to the battery loco 14 as a driving carriage disposed at the rear end of the digging direction X. It is pulled by the drive of this battery loco 14 and can reciprocate between the shaft 21 and the excavation assembly work site 23 along the rail 13.

  Then, as shown in FIGS. 1 (a) and 1 (b), the bogie replacement device 10 of the present embodiment is provided in a vertical shaft 21 constructed by shield tunnel construction, and is driven in the tunnel shaft 22 by driving the battery loco 14. A replacement device for replacing a plurality of carriages 11 a, 11 b, 11 c, 12 that reciprocate along a rail 13 laid on the center fixing portion 16 having a fixed rail 15 provided on an extension of the rail 13; The central fixing part 16 has a donut-like planar shape arranged in the center, and a plurality of moving rails 17 extending in the radial direction around the central fixing part 16 are provided, and the outer periphery of the central fixing part 16 is The turntable 18 is turnable in a direction, and the turntable 18 is twice as many as the plurality of carts 11a, 11b, 11c, 12 (four in this embodiment) that reciprocate. Moving rail 17 is provided for (eight in this embodiment).

  Further, in the present embodiment, preferably, the central fixing portion 16 has a circular planar shape having a diameter substantially the same as the length of the battery loco 14, and the turntable 18 includes the carriages 11 a, 11 b, 11 c, and 12. It has a donut-like planar shape that is approximately the same width as the length.

  Here, the three Zuritoro carts 11a, 11b, and 11c are known as carts for transporting excavation sludge in the mud pressure shield method, and the segment cart 12 is known as a cart for transporting segments in various shield methods. belongs to. In the present embodiment, the three Zuritoro carts 11a, 11b, 11c and the segment cart 12 have a vertically long rectangular planar shape having substantially the same length. Moreover, the battery loco 14 is a well-known drive cart that moves a plurality of carts along a rail in various tunnel constructions.

  And the bogie replacement device 10 of this embodiment is a bottom of the predetermined depth where the shield tunnel is constructed | assembled of the shaft 21 for start formed so that it may have a hollow circular cross section about 9.0 m in diameter, for example. A disc-shaped replacement device provided in a portion, which is a center fixing portion 16 having a circular planar shape, and a turntable 18 having a donut-like planar shape capable of rotating the outer periphery of the central fixing portion 16 in the circumferential direction. It is comprised by.

  In the present embodiment, the center fixing portion 16 is a circular drum-shaped fixing base that integrally protrudes from the bottom surface 21 a of the shaft 21 with its center slightly shifted to the rear side in the excavation direction X from the center of the shaft 21. It is provided as. The central fixing portion 16 is formed to have a diameter of about 2.2 m, which is substantially the same as the length of the battery loco 14, and the central fixing portion 16 is an extension of the rail 13 laid in the tunnel pit 22. The fixed rail 15 made of a pair of rail members is provided so as to cross the center of the central fixing portion 16 in the diametrical direction.

  The fixed rail 15 includes a rail 13 laid in the tunnel pit 22 via the moving rail 17 when one of the eight moving rails 17 provided on the turntable 18 matches the extension thereof. It will be continuous. As a result, the battery loco 14 that has moved while pulling the carriages 11 a, 11 b, 11 c, 12 along the rails 13 in the tunnel mine 22 can be further moved to the center fixing portion 16 in the shaft 21. While the carts 11a, 11b, 11c, and 12 are exchanged while rotating the turntable 18, the battery loco 14 can be temporarily placed on the center fixing portion 16, and each cart 11a, 11b, After exchanging 11c and 12, these carts 11a, 11b, 11c, and 12 can be pulled again toward the excavation and assembly work site 23 along the rail 13 in the tunnel mine 22. (See FIGS. 3 and 4).

  The turntable 18 is an annular donut-shaped portion that is arranged concentrically with the outer peripheral portion of the center fixing portion 16. The turntable 18 is formed to have a width of about 2.7 m, which is substantially the same as the lengths of the Zuritro carriages 11a, 11b, 11c and the segment carriage 12. Extending in the radial direction centered on the center, moving rails 17 are provided at eight locations at equal angular pitches in the circumferential direction. Moreover, the turntable 18 is supported and provided in the loosely-fitted state between the center fixing | fixed part 16 and the outer side support stand 19 provided along the bottom inner peripheral surface of the shaft 21, for example, center fixing | fixed The table can be rotated in the circumferential direction along the outer periphery of the central fixing portion 16 by driving a table rotation drive mechanism (not shown) attached via the portion 16 and the outer support 19.

  Then, the eight moving rails 17 provided on the turntable 18 are sequentially placed between the rail 13 in the tunnel pit 22 and the fixed rail 15 in the central fixing portion 16 by turning the turntable 18 every 45 °, for example. Will be placed. As a result, the carts 11a, 11b, 11c, and 12 to be replaced can be temporarily placed on the turntable 18 in sequence, and the replaced carts 11a, 11b, 11c, and 12 can be placed on the excavation assembly work site 23. It can be sequentially sent out (see FIGS. 3 and 4).

  As the table rotation driving mechanism for rotating the turntable 18, various known table rotations such as a rotation driving mechanism including an annular rack, a driving motor, and a driving gear described in Japanese Patent Laid-Open No. 10-18800, for example. A drive mechanism can be employed. In addition, the fixed rail 15 and the moving rail 17 are provided with, for example, a undulating car stopper for temporarily fixing the temporarily placed battery loco 14 and the carts 11a, 11b, 11c, and 12.

  Further, a monitoring stage 30 is provided inside the shaft 21 so as to be movable up and down via a lifting equipment 31 and is located above the carriage replacement device 10. From the monitoring stage 30, the carriages 11 a, 11 b, The replacement work of 11c and 12 can be managed. Furthermore, an entry prohibition fence 32 is provided at an appropriate position surrounding the central fixing portion 16 and the turntable 18, and an operation panel 33 is provided on a wall surface adjacent to the entrance / exit of the tunnel pit 22. .

  And according to the cart replacement apparatus 10 of this embodiment provided with the above-mentioned structure, as shown in FIGS. 3 (a) to (d) and FIGS. 4 (a) to (d), the Zuritro is as follows. The carts 11a, 11b, 11c and the segment cart 12 can be easily and quickly replaced.

  In order to replace the slip carriages 11a, 11b, 11c and the segment carriage 12, first, the slip carriages 11a, 11b, 11c loaded with the excavation slip 24 and the empty segment carriage 12 are transported to the shaft 21 from the excavation assembly work site 23. Prior to coming, an operation for temporarily placing the segment carriage 12 'loaded with the empty Zuritro carriages 11a', 11b ', 11c' for replacement and the segment 25 on the moving rail 17 of the turntable 18 is performed in advance.

  That is, in the present embodiment, a segment truck 12 ′ loaded with segments 25 is connected to a center sandwiching portion 16 while rotating the turntable 18 appropriately using a lifting heavy machine such as an overhead crane installed on the ground. It is temporarily placed on the moving rail 17 located on the side opposite to the pit 22 (see FIG. 3A). In addition, three empty Zuritoro carts 11a ′, 11b ′, and 11c ′ are moved from the segment cart 12 ′ in the clockwise direction opposite to the counterclockwise direction that is the rotational direction Y of the turntable 18 and moved in the clockwise direction. 17, the third Zuritro carriage 11c ′, the second Zuritro carriage 11b ′, and the first Zuritro carriage 11a ′ are temporarily placed in this order (see FIG. 3A). In this state, the moving rail 17 located on the side opposite to the moving rail 17 on which the segment carriage 12 ′ is temporarily placed is a straight line between the fixed rail 15 of the central fixing portion 16 and the rail 13 of the tunnel pit 22 while remaining empty. Will be arranged.

  In this state, when the Zuritoro carts 11a, 11b, 11c loaded with the excavation debris 24 from the excavation assembly work site 23 and the empty segment cart 12 are transported to the shaft 21, as shown in FIG. The leading battery locomotive 14 is moved to the fixed rail 15 of the central fixing portion 16, and the connection between the battery locomotive 14 and the leading first sliding carriage 11a is released. Further, the connection between the first Zuritro carriage 11a and the next second Zuritro carriage 11b is released. As a result, the first Zuritoro cart 11a is temporarily placed on the moving rail 17 of the turntable 18 in a state where the front-rear connection is released, so that the turntable 18 can be rotated in the rotation direction Y. It becomes possible.

  From this state, if the turntable 18 is rotated 45 ° in the rotational direction Y, the next moving rail 17 remains empty, and a straight line is formed between the fixed rail 15 of the central fixing portion 16 and the rail 13 of the tunnel pit 22. As shown in FIG. 3B, the remaining carriages 11b, 11c, 12 are advanced to the turntable 18 side, and the second Zuritoro carriage 11b is temporarily placed on the moving rail 17, as shown in FIG. The connection between the second Zuritoro cart 11b and the next third Zuritoro cart 11c is released. Thereafter, if the turntable 18 is further rotated by 45 ° in the rotation direction Y, the next moving rail 17 is disposed between the fixed rail 15 of the central fixing portion 16 and the rail 13 of the tunnel pit 22 with the sky remaining empty. Therefore, as shown in FIG. 3C, the remaining carriages 11c and 12 are advanced to the turntable 18 side, and the third Zuritro carriage 11c is temporarily placed on the moving rail 17, and the third Zuritoro carriage 11c. And the next segment cart 12 is released. Subsequently, if the turntable 18 is further rotated by 45 ° in the rotational direction Y, the last remaining moving rail 17 remains between the fixed rail 15 of the central fixing portion 16 and the rail 13 of the tunnel pit 22. Since it is disposed between them, the segment carriage 12 is moved forward to the turntable 18 side and temporarily placed on the moving rail 17 as shown in FIG.

  As a result, on the turntable 18, the segment carriage 12 ′ loaded with empty replacement carriages 11 a ′, 11 b ′, 11 c ′ and the segment 25, and the excavation slot 24 conveyed from the excavation assembly work site 23. Zuritoro carts 11a, 11b, 11c loaded with and an empty segment cart 12 are temporarily placed at the same time, and a battery loco 14 is temporarily placed on the central fixing portion 16 surrounded by the turntable 18. .

  Here, the Zuritro carts 11a, 11b, 11c and the segment cart 12 after being separated from the battery loco 14 can be easily moved by using, for example, a simple winch or manually.

  Then, Zuritro carriages 11a ′, 11b ′, 11c ′ for replacement and a segment carriage 12 ′, and Zuritro carriages 11a, 11b, 11c and the segment carriage 12 conveyed from the excavation assembly work site 23 are temporarily placed. If the turntable 18 is further rotated by 45 ° in the rotational direction Y from the state of FIG. 3D, as shown in FIG. 4A, the moving rail 17 on which the segment carriage 12 ′ is temporarily placed, Since it is arranged between the fixed rail 15 of the central fixing portion 16 and the rail 13 of the tunnel pit 22, the segment carriage 12 ′ loaded with the segments 25 is moved in the excavation direction X as shown in FIG. The turntable 18 is further rotated by 45 ° in the rotation direction Y, and the empty third Zuritro carriage 11c ′ is moved to the segment carriage 12 ′. Place behind.

  Thereafter, the third Zuritro carriage 11c ′ is connected to the segment carriage 12 ′, and as shown in FIG. 4C, these are moved in the excavation direction X and arranged on the rail 13, and the turntable 18 is rotated. Further, the empty second Zuritro carriage 11b ′ is disposed behind the third Zuritoro carriage 11c ′ by further turning 45 ° in the moving direction Y. Subsequently, the second Zuritro carriage 11c ′ is connected to the third Zuritoro carriage 11c ′, and as shown in FIG. 4 (d), these are moved together with the segment carriage 12 ′ in the excavation direction X on the rail 13 At the same time, the turntable 18 is further rotated 45 ° in the rotation direction Y, and the empty first Zuritro carriage 11a ′ is arranged behind the second Zuritro carriage 11b ′.

  Accordingly, from the front side in the excavation direction X, the segment carriage 12 ′ loaded with the segments 25, the empty third Zuritro carriage 11c ′, the empty second Zuritro carriage 11c ′, and the empty first Zuritro carriage 11a ′. Then, the battery locos 14 temporarily placed on the center fixing portion 16 are aligned on a straight line. Therefore, by connecting the second Zuritro carriage 11c ′ and the first Zuritro carriage 11a ′, and by connecting the first Zuritro carriage 11a ′ and the battery loco 14, the Zuritro carriage that has been transported from the excavation assembly work site 23. 11a, 11b, 11c and the segment carriage 12 are replaced with the Zuritro carriages 11a ′, 11b ′, 11c ′ and the segment carriage 12 ′ toward the excavation assembly work site 23 in the tunnel pit 22 by driving the battery loco 14. And can be transported again.

  Moreover, in this embodiment, after the Zuritro carts 11a ′, 11b ′, 11c ′ and the segment cart 12 ′ are transported to the tunnel mine 22 toward the excavation assembly work site 23, the top of the trolley exchanging device 10 in the shaft 21 is obtained. The Zuritro carriages 11a, 11b, and 11c and the segment carriage 12 that are left behind are, for example, Zuritro carriages 11a ′, 11b ′, and 11c ′ loaded with excavation debris 24 at the excavation assembly work site 23 and returned to the vertical shaft 21 again. In the meantime, the battery locomotive 14 shown in FIG. 3 (a) is lifted by using a lifting heavy machine such as an overhead crane to remove the excavation gap 24 or load the segment 25 on the segment carriage 12. The carts 11a, 11b, 11c, and 12 wait for their arrival before being transported from the excavation assembly work site 23. It will be.

  Thus, according to the cart replacement apparatus 10 of the present embodiment, the carts 11a, 11b, 11c, and 12 transported from the excavation assembly work site 23 are replaced with the carts 11a ′, 11b ′, 11c ′ for replacement. The work of exchanging 12 ′ and the shaft 21 is performed by rotating the turntable 18 every 45 ° and lifting the carts 11a, 11b without lifting and hanging the carts 11a, 11b, 11c, 12 by the lifting heavy machinery. , 11c, 12 can be performed by a slight movement, so that the replacement time can be greatly shortened, whereby a plurality of carriages 11a, 11b, 11c, which carry the excavation slot 24, the segment 25, etc. It is possible to effectively shorten the time until 12 starts from the excavation assembly work site 23 and returns to the excavation assembly operation site 23 again. .

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the number of carriages replaced by the carriage replacement apparatus of the present invention is not necessarily four, and may be three or five or more. Further, the number of moving rails provided on the turntable does not necessarily need to be twice the number of carts to be replaced, and more moving rails may be provided. Furthermore, the bogie replacement device of the present invention is not limited to the shield tunnel construction by the mud pressure type shield machine, and can be used as an apparatus for replacing the cart in other various shield tunnel constructions such as a muddy water type. . Furthermore, the center fixing portion does not necessarily have a circular planar shape having a diameter substantially the same as the length of the drive carriage, and the turntable does not necessarily have a width substantially the same as the length of the carriage.

10 bogie replacement device 11a, 11a ′ first zuritro bogie 11b, 11b ′ second zuritro bogie 11c, 11c ′ third zuritro bogie 12, 12 ′ segment bogie 13 rail 14 battery loco (drive bogie)
15 fixed rail 16 central fixed portion 17 moving rail 18 turntable 19 outer support base 20 mud pressure shield shield machine 21 shaft 22 tunnel pit 23 excavation assembly work site 24 excavation gap 25 segment X excavation direction Y rotation direction

Claims (3)

A trolley exchanging device for replacing a plurality of trolleys which are provided in a shaft constructed by shield tunnel construction and reciprocate along a rail laid in the tunnel mine by driving of a driving trolley,
A center fixing portion having a fixed rail provided on the extension of the track, and a donut-shaped planar shape having the center fixing portion arranged at the center, and a plurality of extending in a radial direction centering on the center fixing portion And a turntable capable of rotating the outer periphery of the central fixed portion in the circumferential direction,
A bogie replacement device in a vertical shaft in which the turntable is provided with more than twice as many moving rails as the reciprocating carts. The center fixing portion has a circular planar shape having a diameter substantially the same as the length of the drive carriage, and the turntable has a donut-shaped planar shape having a width substantially the same as the length of the carriage. The bogie replacement device in the shaft described in 1. The bogie replacement device in a vertical shaft according to claim 1 or 2, wherein the turntable is provided with twice as many moving rails as the plurality of bogies that reciprocate.

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