JP2013127281A - Pipe conveying device and pipe conveying method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipe conveying device and a pipe conveying method which are able to minimize a pipe required to be cut and so on and are suited for conveying a linear pipe in a tunnel having a straight line part and a curve part.SOLUTION: The pipe conveying device supports and conveys a pipe with its axial core along the conveying direction in a tunnel having a curve part, and has a pipe receiving member 11 capable of receiving the pipe and an advancement/retraction part 13a of a cylinder device 13 for regulating the position of the pipe received with the pipe receiving member 11. A horizontal part 11b is formed at a part where the pipe receiving member 11 receives the pipe P, and by adjusting a regulating position for the pipe of the advancement/retraction part 13a of the cylinder device 13, the pipe is arranged on the horizontal part 11b movably in a horizontal direction orthogonal to the conveying direction.

Description

  The present invention relates to a tube conveying device, and more particularly to a tube conveying device and a tube conveying method suitable for conveying a straight tube in a tunnel having a straight portion and a curved portion.

  As one method of laying pipes such as water pipes, gas pipes, and steel pipes in the ground, the non-cutting method of burying pipes without having to cut the entire burial site in the vertical direction is already widely known. ing. In addition, as one of the non-cutting methods, a shaft is formed at a position that becomes both ends of the pipe burial site, and a hole (hereinafter also referred to as a horizontal hole) is formed from one shaft using a shield machine. It is already widely known that a tunnel is formed by sequentially arranging segments in the peripheral portion of the horizontal hole while excavating the pipe), and then transporting and laying the pipe into the tunnel.

  In the above construction method, when excavating a horizontal hole using a shield machine, a large amount of earth and sand must be transported from the excavation site toward the shaft side, and the segment must be transported from the shaft to the excavation site. Therefore, a rail is disposed in the horizontal hole formed by the shield machine, and the segment carrying cart and the sediment discharging cart are connected and carried on the rail. Then, the segment is loaded when moving from the vertical shaft to the excavation site, and the sediment is transferred when moving from the excavation site to the vertical shaft, and the segment is arranged in the horizontal hole. After the segment is arranged in the horizontal hole and the tunnel is formed, the truck for carrying in the segment and discharging the earth and sand is taken out, and the rail for carrying in the pipe is arranged in the tunnel, and the pipe is carried in. Of trucks are brought in. Thereafter, the pipes are carried in (introduced) one by one into the tunnel by a pipe carrying carriage that runs on the rail, and the pipes are sequentially connected from the back side to form a pipe line. In addition, after a pipe line is formed, fillers, such as mortar, are inject | poured between a tunnel and a pipe line, and the clearance gap between this is filled.

  In the pipe laying step, the pipe to be laid may include not only a straight pipe, a so-called straight pipe, but also a curved pipe that is curved. At this time, since the straight portion and the curved portion are also formed in the tunnel formed by the shield machine or the like, it is necessary to transport the straight pipe through the curved portion of the tunnel.

  Here, as simply shown in FIG. 11, a straight pipe (also referred to as a fixed pipe) P1 having a predetermined length (for example, about 4 m) is placed in a tunnel T having a curved portion Tw. When carrying and carrying, since the shape of the curved part Tw of the tunnel T and the shape of the pipe P1 are different, the end part or the center part of the pipe P1 interferes (contacts) with the inner wall surface of the tunnel and cannot pass through. In order not to cause a problem, the cross-sectional area (so-called lining section) of the tunnel T must be made somewhat larger than the diameter of the pipe P1. In particular, as a pipe P1 to be transported, a pipe P1 having a large diameter portion such as a receiving port Pu at the end, such as a ductile tube having an insertion port Ps at one end and a receiving port Pu at the other end, is brought in. In this case, since the large diameter portion such as the receiving port Pu is likely to come into contact with the inner wall surface of the curved portion Tw of the tunnel T, attention is required or a larger lining section is required. However, the larger the cross section of the tunnel T, the greater the cost of excavation work, and the greater the capacity of the filler filled between the pipe and the tunnel. In order to cope with this, conventionally, the lining cross section is limited to be slightly larger than the diameter of the pipe P1, and in order to pass the pipe P1 through the curved portion Tw of the tunnel T, the pipe P1 is cut to increase the length. A method of bringing the shortened pipe P2 into the tunnel T is employed. That is, in this way, by using the short pipe P2, the curve of the tunnel T is larger than the gap (clearance) t1 between the inner surface of the curved part Tw of the tunnel T and the end of the pipe P2 in the case of the long pipe P1. Since a gap (clearance) t2 between the inner surface of the portion Tw and the end of the tube P2 can be increased, the tube P1 is cut and conveyed as a short tube P2.

  However, as described above, when the pipe P2 that has been cut and shortened is transported, the number of transports increases, which requires a lot of labor and time, and this increases the cost significantly. Cause problems. Moreover, since the frequency | count of joining a pipe | tube increases, there also exists an increase in cost by this. In addition, the distance which conveys the cut | disconnected pipe | tube P2 by conveying as a fixed-length pipe | tube up to the curved part Tw of the tunnel T through which a fixed-length pipe (pipe P1) does not pass, and cutting | disconnecting when reaching the curved part Tw. Can be shortened to save some cost, but if the curved portion Tw of the tunnel T is at the first location of the tunnel T, the pipe P1 must be cut from the beginning. There will be little cost savings.

  In addition, as a separate problem, a conventional four-wheel truck that can run on rails laid in a tunnel has been used as a conventional carriage for pipe transportation. When passing through the section, the side pressure acting on the wheel increases, and in some cases, there is a possibility of derailment.

  Japanese Patent Application Laid-Open No. H10-228688 discloses a pipe conveying device that can cope with these problems. As shown in FIGS. 12 to 14, the transport apparatus 100 includes a first carriage 101 that supports one end side of the pipe P <b> 1 placed in a horizontal posture, and a second carriage 102 that supports the other end side of the pipe P <b> 1. The first carriage 101 and the second carriage 102 are pivotally connected to each other via a connecting rod 103 and a connecting pin 104. 12 to 14, 105 is a wheel, 106 is a vehicle body frame in which a wheel support portion 107 and a connection portion 108 are integrated, 109 is a support block disposed on the connection portion 108, and 110 is This is a hydraulic cylinder device provided at the left and right ends of the support block 109. And it is comprised so that the pipe | tube P1 may be supported at four points from diagonally downward by the withdrawing / withdrawing part (pipe support surface) 110a made to be able to withdraw and retract in the cylinder device 110. The pipe P1 is not in contact with the support block 109 itself, and is supported only by the pipe support surface 110a of the cylinder device 110.

  According to the transport device 100, the relative position of the second carriage 102 with respect to the first carriage 101 can be changed, so that the curved portion of the rail R can travel without any trouble. Moreover, the pipe | tube P2 from which length differs can also be conveyed by changing the length of the connection rod 103 which connects the 1st trolley | bogie 101 and the 2nd trolley | bogie 102. FIG. In addition, when centering (axial alignment) to connect the already laid pipe and the pipe P1 (P2) transported by the carriage, the exit / exit part (pipe support surface) 110a of the cylinder device 110 is provided. The pipe P1 (P2) is moved up and down by adjusting the protruding dimension (in this case, the protruding dimension is made to be the same).

  Further, in the transport device 100, the position of the pipe P1 with respect to the tunnel T can be adjusted in the left-right direction by adjusting the projecting dimension of the exit / retreat portion (tube support surface) 110a by the cylinder device 110. Accordingly, it is possible to minimize the contact of the pipe P1 with the inner wall surface of the tunnel T, and thus it is possible to bring in the longer pipe P without trouble. Specifically, as shown by the phantom line portion in FIG. 14, by projecting the retracting portion (tube support surface) 110a of the cylinder device 110 on the side opposite to the side on which the tube P is to be moved, FIG. As conceptually shown in FIG. 16, the pipe P1 (more specifically, the axis Po of the pipe P1) moves obliquely upward (moves from the position of the axis Po in FIG. 15 to the position of the axis Po ′). Therefore, the position of the pipe P1 can be adjusted. 14 shows the movement state of the pipe at the place where the carriage 101 (102) is provided, and FIG. 15 shows the curved part of the tunnel T at the place where the end portion (receiving port Pu) of the pipe P1 is located. The movement state of the pipe P with respect to Tw is conceptually shown, and FIG. 16 conceptually shows the movement state of the pipe P1 in the curved portion Tw of the tunnel T in a plan view.

  In FIGS. 12 to 14, a conveying device that can be adjusted by raising and lowering the axis of the pipe by changing the protruding amount of the hydraulic cylinder device 110 is shown. In addition, there is already a pipe transfer device that is provided with a suspending mechanism for suspending a pipe with a chain or the like and adjusting the suspending position to raise and lower the pipe.

JP-A-11-255117

  However, in the conventional conveying apparatus 100 as shown in FIGS. 12 to 14, the pipe P1 is made to protrude as shown in FIGS. 14 and 15 by projecting the retracting portion (pipe support surface) 110a of the cylinder device 110. Since the structure is such that the position of the pipe P1 is adjusted to the left and right while moving obliquely upward, the position adjustment dimension of the pipe P1 cannot be made very large. That is, since the pipe P1 is placed on the carriages 101 and 102 disposed on the rail R laid at the bottom in the tunnel T, the gap between the pipe P1 and the tunnel T is not The diagonally upper portion is the smallest, and from this state, the distance over which the pipe P1 can be moved diagonally upward is small. Therefore, even when this type of transport apparatus 100 is used, there are still many pipes that must be cut, which requires extra time and effort.

  Further, since the length of the cut pipe P2 is different from the size of the regular pipe P1, the distance between the first carriage 101 and the second carriage 102 so as to correspond to the length of the cut pipe P2. (Wheelbase) has to be changed (see FIG. 17), and there has been a problem that much labor and time are required for connecting and separating the connecting rod 103 for this purpose. In addition, a hydraulic tube or the like is connected to the hydraulic cylinder device 110 (not shown), but the holding position of the hydraulic tube needs to be adjusted according to the length of the cut pipe P2. It was.

  In addition, in the case where a suspension mechanism for suspending a tube with a chain or the like is provided on the carriage, it is difficult to adjust the suspension position to the left and right when the weight of the tube is large. In addition, in the case where there is not much difference in dimensions between the pipe and the tunnel, the suspension allowance itself is small, so that it is difficult to suspend the suspension by providing the suspension mechanism on the carriage.

  The present invention solves the above-mentioned problems, and can reduce the labor, time, various costs, etc., such as being able to transport without cutting the pipe, and can be used in a tunnel having a straight portion and a curved portion. It is an object of the present invention to provide a tube conveying apparatus and a tube conveying method suitable for conveying a straight tube.

  In order to solve the above-mentioned problems, a pipe conveying apparatus according to the present invention is a pipe conveying apparatus that supports and conveys a pipe in a state where its axis is along the carrying direction in a tunnel having a curved portion. A tube receiving member capable of receiving the tube and a regulating member for regulating the position of the tube received by the tube receiving member, wherein a horizontal portion is formed in a portion of the tube receiving member that receives the tube, and the regulating member By adjusting the restriction position with respect to the pipe, the pipe is arranged on the horizontal portion so as to be movable in a horizontal direction perpendicular to the conveying direction.

  Further, the pipe transport method of the present invention is a pipe transport method for supporting and transporting a pipe in a state of being horizontal along the transport direction in a tunnel having a curved portion, and a pipe receiving member for receiving the pipe A horizontal portion is formed on the horizontal portion, and when the curved portion of the tunnel is passed through the straight tube, the straight tube is moved on the horizontal portion in a horizontal direction perpendicular to the conveying direction.

  By these transfer devices and transfer methods, the pipe is moved in the horizontal direction perpendicular to the transfer direction on the horizontal portion. Therefore, the horizontal movement range in the tunnel can be made larger than when the pipe is moved obliquely upward. As a result, even when a straight pipe is transported in a tunnel having a curved portion, it is not necessary to cut the pipe, or the pipe can be transported in a tunnel having a smaller cross-sectional area. .

  Here, it is preferable that the regulating member of the conveying device is a cylinder device provided on the left and right of the tube receiving member. A first carriage that supports one end of the tube; and a second carriage that supports the other end of the tube, each of the first and second carriages having a horizontal portion. It is more preferable that the tube receiving member and the regulating member are provided. With this configuration, the first carriage and the second carriage can travel well even in the curved portion of the tunnel, and can be stably held in a state where the pipe is moved to an arbitrary position.

  The cylinder device may be a hydraulic cylinder device that protrudes hydraulically, and an urging unit that urges the protruding portion that protrudes hydraulically in the anti-projection direction may be provided outside the cylinder device body. With this configuration, the urging means is provided when the hydraulic pressure in the protruding direction is released while the configuration is simple and the hydraulic cylinder device has sufficient protruding output and can be reduced in size. The projecting portion contracts due to the urging force.

  In addition, the horizontal portion is arranged so as to have a height that is separated from the center of the tunnel by a radius of the pipe, or a height in the vicinity thereof, by reducing the diameter of the wheel of the carriage provided in the transfer device. It is preferable. Thereby, the movement operation | movement to the horizontal direction of a pipe | tube can be performed in the state from which the center of a tunnel and the axial center of a pipe | tube become substantially the same height, and the horizontal movement range within a tunnel can be enlarged further.

  According to the present invention, the horizontal portion is formed in the portion of the tube receiving member that receives the tube, and when the curved portion of the tunnel is passed through the straight tube, the position of the regulating member that regulates the position of the tube is adjusted. By moving the straight pipe in the horizontal direction perpendicular to the transport direction on the horizontal portion, the horizontal movement range in the tunnel is larger than when moving the pipe diagonally upward. it can. As a result, even when a straight tube is transported in a tunnel having a curved portion, it is not necessary to cut the tube, it is possible to transport the tube in a tunnel having a smaller cross-sectional area, It is possible to pass through even a large tunnel.

  Further, by reducing the diameter of the wheel of the carriage provided in the transfer device, the horizontal portion is arranged so that it is at a height that is separated from the center of the tunnel by a radius of the tube or just below it. Thus, the horizontal movement range in the tunnel can be further increased by performing the horizontal movement operation of the pipe in a state where the center of the tunnel and the axial center of the pipe are substantially at the same height.

1 is an overall plan view of a pipe transfer device and a tunnel according to an embodiment of the present invention. (A) And (b) is the top view and side view of the conveyance apparatus, a tunnel, etc. It is side views, such as the conveyance apparatus and a tunnel. It is a top view of the 1st and 2nd trolley | bogie of the same conveying apparatus. It is a side view of the 1st trolley | bogie of the same conveying apparatus. It is a front view of the 1st trolley | bogie of the conveyance apparatus. It is the figure which looked at the cylinder apparatus arrangement | positioning part in the 1st trolley | bogie of the conveyance apparatus from diagonally upward. It is a right side sectional view showing the state where a pipe rolls (moves) in the same conveying device. (A) And (b) is a left side end view showing a state before and after the tube (showing the end surface on the receiving end side of the tube) rolls (moves) in the transport device. It is a top view which shows the state in which the pipe | tube passes the curve part of a tunnel in the same conveying apparatus. It is a top view which shows the conventional state in which a pipe | tube passes the curve part of a tunnel. It is a front view of the conventional conveying apparatus. It is a top view of the conventional conveying apparatus. It is a side view which shows the movement state of the conventional conveying apparatus and a pipe | tube. It is a side view which shows the movement state in the edge part of the pipe | tube in the tunnel by the conventional conveying apparatus. It is a top view which shows notionally the movement state in the edge part of the pipe | tube in the tunnel by the conventional conveying apparatus. It is a top view which shows notionally the state which conveys a short pipe | tube with the conventional conveying apparatus.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tube transfer device and a tube transfer method according to embodiments of the present invention will be described below with reference to the drawings. The embodiments shown here are merely examples, and are not necessarily limited to these embodiments.

  As shown in FIG. 1, FIG. 2 (a), (b), etc., the pipe conveyance device according to the embodiment of the present invention is provided within a tunnel T having a curved portion Tw (see FIG. 10). P1) is supported and transported (carried in) in a horizontal state along the transport direction. This pipe transfer device is configured to freely turn (swing) a first carriage 1 that supports one end of the pipe P, a second carriage 2 that supports the other end of the pipe P, and these carriages 1 and 2. A first bogie connecting tool 3 comprising a connecting rod 3a and a connecting pin 3b (configured by bolts and nuts in this embodiment) and a bogie 1, 2 A hydraulic supply carriage 4 provided with an oil supply branching device 4a for supplying oil (hydraulic pressure) to a provided hydraulic cylinder device (described later), the hydraulic supply carriage 4 and the first carriage 1; A second cart coupling 5 for pivotally connecting the first and second carts 1 and 2, and a towing vehicle 6 for towing the hydraulic supply cart 4, and the towing cart 6 and the hydraulic supply cart 4 And a third bogie connection tool 7 that connects the two wheels so as to turn freely. The second and third cart couplers 5 and 7 may have the same structure as the first cart coupler 3, but are not limited thereto. Further, in this embodiment, a case where a ductile tube having an insertion port Ps on one end side and a receiving port (large diameter portion) Pu on the other end side is brought in as the transport target tube P is illustrated.

  The first and second carriages 1 and 2, the hydraulic supply carriage 4 and the towing vehicle 6 are allowed to run on a pair of left and right rails 8 laid on the bottom of the tunnel T. The tunnel T is formed by excavating a horizontal hole using a shield machine and arranging a segment 9 in the horizontal hole. Moreover, there are a straight pipe and a curved pipe as the pipes P to be transported. Correspondingly, in the tunnel T, not only the straight part but also the curved part Tw is provided.

  As shown in FIG. 3 to FIG. 6 and the like, the first and second carriages 1 and 2 of the pipe conveying device each have a pipe extending in a substantially curved shape in the lateral direction and capable of receiving the pipe P from below. The tube receiving member 11 is configured to be freely retractable through a receiving member 11, a horizontal frame 12 attached along the lower surface of the tube receiving member 11, and a hole 11 a formed in the vicinity of both ends of the tube receiving member 11. And a hydraulic cylinder device (so-called jack device) 13 having an extension / retraction portion 13a as a regulating member for regulating the position of the pipe P received by the pipe P, and the left and right portions of the lateral frame 12 respectively extend in the front-rear direction. At the front end and the rear end, a wheel support portion 15 that supports the wheels 14 that run on the rails 8 in a freely rolling manner extends from the center portion of the horizontal frame 12 in the front-rear direction, and the front end portion and the rear end portion thereof. Dolly connector at the end , Such as a central frame 16 is provided which is connected to the 5.

  Here, as shown in FIG. 3 and FIG. 5, the tube receiving member 11 is formed in a curved shape whose center is depressed downward when viewed from the front. A horizontal portion 11b (a portion in a range indicated by A in FIG. 5) is formed. And it is comprised by this horizontal part 11b so that the lower end part location of the pipe | tube P can be received directly and can be supported. Further, the withdrawing / retracting portions 13a of the left and right cylinder devices 13 can be protruded from the curved surface of the tube receiving member 11 in a direction perpendicular to the curved surface. Then, as shown by the solid line in FIG. 8, the tube receiving member 11 is regulated by projecting the retracting portions 13 a of the left and right cylinder devices 13 from the tube receiving member 11 with the same projecting dimensions to restrict the position of the tube P from the left and right. It can hold | maintain in the state which received the pipe | tube P in the center of the left-right direction, ie, the center part of the horizontal part 11b. Further, as shown by phantom lines in FIG. 8, the pipe P can be placed horizontally by protruding the retracting part 13 a of the left cylinder device 13 from this state and retracting the retracting part 13 a of the right cylinder device 13. It can be moved (that is, rolled) while rotating in the right horizontal direction (specifically, the right direction in the horizontal direction orthogonal to the transport direction) while maintaining the state received by the portion 11b. Further, from the state in which the extending and retracting portions 13a of the left and right cylinder devices 13 have the same protruding size, the retracting portion 13a of the right cylinder device 13 is protruded and the retracting portion 13a of the left cylinder device 13 is retracted. The tube P can be moved (that is, rolled) while being rotated in the left horizontal direction (specifically, the left direction in the horizontal direction orthogonal to the transport direction) while maintaining the state received by the horizontal portion 11b. ing.

  When centering to connect the pipes P, the pipes P are moved in the vertical direction by projecting the protruding / retracting portions 13a of the left and right cylinder devices 13 by the same dimension and adjusting the protruding amount. Move.

  Also, in this embodiment, as shown in FIGS. 5 to 7, a hydraulic device is used as the cylinder device 13, but the cylinder device body 13b is extremely compact and has a sufficient impact output. On the other hand (in this embodiment, the one in which the protruding portion 13a protrudes in multiple stages is used), on the other hand, the outside of the cylinder device main body 13b (specifically, four different points in the circumferential direction) In addition, a spring 13c is provided as an urging means for urging the protruding portion 13a that protrudes hydraulically in the anti-projection direction. And it is comprised so that the protrusion part 13a may shrink | degenerate in the cylinder apparatus main body 13b with the urging | biasing force of the spring 13c by releasing hydraulic pressure. 4, 6, and 7, 17 is a hydraulic tube that supplies oil into the cylinder device body 13 b, and 18 is a holding ring that simply holds the hydraulic tube. As shown in FIG. A ring 18 is attached to the lateral frame 12 and the wheel support 15.

  Furthermore, in this embodiment, a wheel 14 having a very small diameter (for example, one having a diameter of about 60 mm or about 50 mm) is used, and thereby the horizontal portion 11b that receives the pipe P in the pipe receiving member 11 is formed in the tunnel T. The horizontal portion 11b is disposed at an extremely low position, and is disposed so as to have a height in the vicinity of the height away from the center Ot of the tunnel T by a radius r of the pipe P. Thereby, in a state where the pipe P is received by the horizontal portion 11b of the pipe receiving member 11, the center Ot of the tunnel T and the axial center Op of the pipe P are substantially at the same height. Further, the wheel 14 is disposed in a bogie manner, and is thereby configured to be able to follow the curved rail portion well.

  In the above configuration, when transporting (bringing) the pipe P to the back side of the tunnel T, when transporting a straight pipe (so-called straight pipe) P through the curved portion Tw of the tunnel T, both ends and the center of the pipe P are used. When the portion is likely to come into contact with the inner surface of the tunnel T, for example, the protruding amount of the retracting portion 13a of the left and right cylinder devices 13 is indicated by a virtual line in FIG. 8 from the position indicated by the solid line in FIG. The pipe P is adjusted to the position (in FIG. 8, adjusted so that the protruding / retracting portion 13a of the left cylinder device 13 protrudes and retracts the protruding / retracting portion 13a of the right cylinder device 13). Adjust the restriction position. In particular, in the present invention, the horizontal portion 11b is formed in the tube receiving member 11, and the tube P is disposed in the horizontal portion 11b so as to be movable in a horizontal direction (that is, a horizontal left-right direction) perpendicular to the conveying direction. While maintaining P in the state received by the horizontal portion 11b, the straight pipe P is moved horizontally to the left or right by changing and adjusting the protruding dimensions of the protruding and retracting portions 13a of the left and right cylinder devices 13. Can be made.

  As a result, the pipe P is moved in the horizontal left-right direction from the position indicated by the phantom line in FIGS. 9A and 10 to the position indicated by the solid line in FIG. 9B and FIG. The clearance (clearance) between the outer peripheral surface of the end portion of the pipe P and the curved portion Tw of the tunnel T can be sufficiently taken to be the dimension C1 to the dimension C2, The contact with the inner surface of the tunnel T can be prevented. In particular, as a pipe P to be transported, a pipe P having a large diameter portion such as a receiving port Pu at the end, such as a ductile tube having an insertion port Ps on one end side and a receiving port Pu on the other end side, is brought in. However, conventionally, since the large-diameter portion such as the receiving port Pu is likely to come into contact with the inner wall surface of the curved portion Tw of the tunnel T, it requires attention or requires a larger lining section. Such problems can be solved by the embodiment of the present invention. 9A and 9B show the relative positions of the curved portion Tw of the tunnel T and the end portion of the tube P (showing the end surface on the receiving end of the tube), respectively. a) shows a state before the pipe P is moved, and FIG. 9B shows a state after the movement. FIG. 10 is a plan view showing the relative position between the pipe P and the curved portion Tw of the tunnel T, where the phantom line portion of the pipe P is shown before being moved, and the solid line portion of the pipe P is being moved. Shows the state.

  That is, according to the present invention, the straight pipe P can be moved in the horizontal left-right direction, so that the pipe is moved obliquely upward as in the conventional pipe transfer device as shown in FIGS. In comparison, the moving range of the pipe P in the tunnel T in the horizontal direction (left-right direction) can be made larger, and the position of the pipe can be adjusted within this moving range.

  Moreover, according to the said structure, the horizontal part 11b of the pipe | tube receiving member 11 is made into the very small diameter of the wheel 14, or the spring 13c is provided outside and the height of the cylinder apparatus main body 13b is made very low. Can be arranged in the vicinity of the height away from the center of the tunnel T just below the radius of the pipe P. Thereby, the movement operation | movement to the horizontal direction of the pipe P can be performed in the state in which the center of the tunnel T and the axial center of the pipe P become substantially the same height, As a result, in the tunnel T of the pipe P The horizontal movement range can be further increased.

  With these configurations and methods, it is possible to increase the number of cases where the pipe P does not have to be cut even when the straight pipe T having a predetermined length is transported in the tunnel T having the curved portion Tw. The number of times of transporting the sheet can be minimized, so that the labor and time can be reduced by that amount, and the necessary cost can be minimized. In addition, since the number of times of joining the pipes can be minimized, this can also reduce the cost. Further, when the pipe P is not required to be cut and only the fixed pipe can be conveyed, the distance between the first carriage 1 and the second carriage 2 is always constant. There is no need to change the connecting rod 3a for connecting 1 and 2, and it is not necessary to spend much time and effort on connecting and separating work like connecting rods of different lengths as in the past. Efficiency is improved. Further, since the holding position of the hydraulic tube 17 of the cylinder device 13 does not need to be adjusted, this also improves the work efficiency.

  In addition, this makes it possible to transport the pipe P in the tunnel T having a smaller lining section than before, so that the lining section can be reduced, and the cost of excavation work can be reduced. be able to. In addition, a relatively long straight pipe can be passed through the tunnel T having a large degree of curvature.

  In the above configuration, the case where the horizontal portion 11b of the tube receiving member 11 is lowered due to the compactness of the wheel 14 and the cylinder device 13 has been described. However, the present invention is not limited to this, and the height of the rail 8 and the rail 8 The center Ot of the tunnel T and the axial center Op of the pipe P coincide with each other (ie, the horizontal portion 11b of the pipe receiving member 11 is directly below the radius of the pipe P from the center of the tunnel T). May be configured so that they are separated from each other. In this case, the horizontal movement of the pipe P in the tunnel T can be performed because the movement of the pipe P in the horizontal direction can be performed with the center of the tunnel T and the axis of the pipe P being at the same height. There is an advantage that the movement range can be further increased.

DESCRIPTION OF SYMBOLS 1 1st trolley 2 2nd trolley 3 1st trolley | bogie connection tool 8 Rail 9 Segment 11 Pipe receiving member 11a Hole 11b Horizontal part 13 Cylinder apparatus 13a Ejection / retraction part 13b Cylinder apparatus main body 13c Spring (biasing means)
14 Wheel 15 Wheel support 17 Hydraulic tube 18 Retaining ring T Tunnel Tw Curved part P Pipe

Claims (7)

In a tunnel having a curved portion, a pipe transport device that supports and transports a pipe in a state where its axis is along the transport direction,
A pipe receiving member capable of receiving the pipe, and a regulating member for regulating the position of the pipe received by the pipe receiving member,
A horizontal portion is formed in a portion for receiving the tube of the tube receiving member,
An apparatus for transporting a pipe, wherein the pipe is arranged to be movable in a horizontal direction perpendicular to the transport direction on the horizontal portion by adjusting a restriction position of the restriction member with respect to the pipe.   The pipe conveying device according to claim 1, wherein the regulating member is a cylinder device provided on the left and right of the pipe receiving member. A first carriage that supports one end of the pipe, and a second carriage that supports the other end of the pipe,
The pipe conveyance device according to claim 1 or 2, wherein a pipe receiving member having a horizontal portion and a regulating member are provided on each of the first carriage and the second carriage.   The cylinder device is a hydraulic cylinder device that protrudes hydraulically, and is provided with an urging means that urges a protruding portion that protrudes hydraulically in the anti-projection direction outside the cylinder device body. The pipe conveyance device according to any one of claims 1 to 3.   The horizontal portion is disposed so as to have a height that is just below the radius of the tube from the center of the tunnel or a height in the vicinity thereof. Tube transport device. In a tunnel having a curved portion, a method for transporting a tube that supports and transports the tube in a state of being horizontal along the transport direction,
A horizontal portion is formed on the tube receiving member that receives the tube,
When passing a straight pipe through the curved section of the tunnel, adjust the position of the regulating member that regulates the position of the pipe, and move the straight pipe in the horizontal direction perpendicular to the transport direction on the horizontal section A method for conveying a tube, characterized in that:   7. The method for transporting a pipe according to claim 6, wherein the horizontal movement of the pipe is performed in a state where the center of the tunnel and the axial center of the pipe are substantially at the same height.

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