JP6274903B2 - Segment transport cart and non-cutting method - Google Patents

Description

  The present invention relates to a carriage for transporting a segment and a non-cutting method using the segment transportation carriage.

  Conventionally, as this kind of non-open cutting method, for example, as shown in FIG. 11, a tunnel 102 is excavated using a shield machine 101 and a plurality of segments 103 conveyed into the tunnel 102 are shielded. There is a method of forming the sheath tube 105 by annularly assembling with the segment assembling apparatus 104 of FIG.

  The segment assembling apparatus 104 is provided on the rear side in the traveling direction F of the shield machine 101. Further, the segment 103 is transported by the segment transport carriage 106, and the segment transport carriage 106 travels on the rail 107 laid in the sheath tube 105.

  Below the segment assembling apparatus 104 is set as a segment assembling position 108 for connecting the segments 103 together and assembling them in an annular shape. Between the rear end portion 107a (terminal portion) of the rail 107 and the segment assembly position 108, a segment supply device 109 that supplies the segment 103 from the segment transport carriage 106 to the segment assembly position 108 is installed.

  As a result, the tunnel 102 is excavated using the shield machine 101, and the segment 103 is placed on the segment conveyance carriage 106 and conveyed to the back in the sheath tube 105. When the segment transport carriage 106 travels to the rear end portion 107a of the rail 107, the segment transport carriage 106 is stopped, the segment 103 is lifted from the segment transport carriage 106, the segment 103 is rotated by 90 °, and the direction is changed. The segment 103 is lowered onto the segment supply device 109 as indicated by the line. Thereafter, the segment 103 is transferred to the segment assembly position 108 by the segment supply device 109.

  The non-cutting method as described above is described in, for example, Patent Document 1 below.

Tokuhoku 8-9960

  However, in the above conventional type, as the shield machine 101 excavates the earth and sand and advances, the rail 107 is sequentially extended to the back of the sheath pipe 105, and the segment transport carriage 106 reaches the back of the sheath pipe 105. I can run. At this time, it is necessary to move the installation position of the segment supply device 109 to the inside of the sheath pipe 105 so as to follow the advance of the shield machine 101, and each time the installation position of the segment supply device 109 is changed several times. There is a problem that a large amount of labor and labor are required for the operation of moving the sheath tube 105 (tubular body) to the back.

  An object of this invention is to provide the segment conveyance trolley | bogie which can reduce the effort and labor of a work in a tubular body, and a non-cutting method.

In order to achieve the above object, according to the first aspect of the present invention, a tunnel is excavated using a shield machine, and a plurality of segments conveyed in the tunnel are assembled by a segment assembly device of the shield machine to form a tubular body. A segment transport carriage used in the non-open cutting method,
The carriage main body is provided with a support portion for supporting the segment, and a segment supply device for supplying the segment from the support portion to the segment assembly position of the segment assembly device of the shield machine .
The segment supply device is provided in the bogie body so that it can be moved in and out
The segment supply device is pulled out from the main body of the carriage while the segment is supported by the support portion, and is inclined downward toward the segment assembly position .

According to this, the segment is supported by the support portion of the cart body, the segment transport cart is run, the segment is transported to the near side of the segment assembly position, and the segment transport cart is stopped. Thereafter, the segment supply device is pulled out from the cart body and tilted downward. Thereafter, the segment is supplied from the support portion of the segment transport carriage to the segment assembly position using the segment supply device. At this time, since the segment supply device is inclined downward, the segment is easily supplied from the segment supply device to the segment assembly position by its own weight.

  Thus, since the segment supply device is provided in the carriage main body, the segment supply device is moved together with the segment conveyance vehicle by running the segment conveyance vehicle. This eliminates the troublesome work of sequentially moving the installation position of the segment supply device to the back of the tubular body separately from the movement of the segment transport carriage, thereby reducing labor and labor of the work inside the tubular body.

The segment transport carriage in the second invention has a leg member that lands in the tunnel when the segment supply device is pulled out from the retracted position to the protruding position.
Supply device fixing means for fixing the segment supply device pulled out to the protruding position to the carriage body is provided,
The supply device fixing means has a carriage side fixing hole provided in the carriage main body, a supply device side fixing hole provided in the segment supply device, and a fixture that can be inserted into and removed from both the fixing holes. It is.

The third invention is a non-open cutting method of excavating a tunnel using a shield machine and assembling a plurality of segments conveyed in the tunnel with a segment assembly device of the shield machine to form a tubular body,
The segment is supported by the support part of the carriage body of the segment transportation carriage and transported to the front side of the segment assembly position of the segment assembly equipment of the shield machine in the tunnel.
With the segment supported by the support body of the carriage body, the segment supply device provided in the segment transport carriage is pulled out of the carriage body and tilted downward toward the segment assembly position.
The segment is delivered from the support portion of the carriage body to the segment supply device and supplied to the segment assembly position.

According to this, since the segment supply device is provided in the cart body, the segment supply device moves together with the segment conveyance cart by running the segment conveyance cart. This eliminates the need to move the installation position of the segment supply device to the back of the tubular body separately from the movement of the segment transport carriage, thereby reducing the labor and labor of the work in the tubular body.
In the non-cutting method according to the fourth aspect of the invention, the segment supply device is pulled out from the carriage body to the projecting position, tilted downward toward the segment assembly position, and the leg member provided on the segment supply device is landed in the tunnel. ,
The trolley side fixing hole provided in the trolley body and the supply device side fixing hole provided in the segment supply device are overlapped,
The segment supply device is fixed to the carriage body by inserting a fixing tool into both the fixing holes.

  As described above, according to the present invention, since the segment supply device is provided in the cart body, the segment supply device moves together with the segment transport cart by running the segment transport cart. This eliminates the troublesome work of sequentially moving the installation position of the segment supply device to the back of the tubular body separately from the movement of the segment transport carriage, thereby reducing labor and labor of the work inside the tubular body.

It is a figure which shows a mode that the segment is supplied to the segment assembly position using the segment conveyance trolley | bogie in embodiment of this invention. It is a perspective view of the segment conveyed with a segment conveyance trolley. It is a side view of a segment conveyance trolley similarly and shows the state which retracted the segment supply apparatus. It is an enlarged side view of a segment conveyance trolley. It is a WW arrow directional view in FIG. It is a top view of a segment conveyance trolley similarly and shows the state which retracted the segment supply apparatus. It is a side view of a segment conveyance trolley similarly and shows the state which protruded the segment supply apparatus. It is an expanded sectional view of the supply apparatus fixing means of a segment conveyance trolley. It is a side view of the segment fixing means of a segment conveyance trolley. It is a figure which shows a mode that the fixation of the frontmost segment loaded on the segment conveyance trolley is cancelled | released and the frontmost segment is supplied to a segment assembly position. It is a side view of the conventional segment conveyance trolley and a segment supply apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, reference numeral 1 denotes a segment conveying cart used for the non-cutting method. In the non-open cutting method, the tunnel 3 is excavated by using a small shield machine 2 and a plurality of segments 4 conveyed into the tunnel 3 are assembled by the erector device 5 (an example of a segment assembly device) of the shield machine 2. A sheath tube 6 (an example of a tubular body) is formed.

  The erector device 5 is provided on the rear side of the shield machine 2 and is configured to connect a plurality of segments 4 to form an annular shape. The lower part of the erector device 5 is set as a segment assembly position 7.

  As shown in FIG. 2, the segment 4 includes an outer plate portion 61 curved in an arc shape, a pair of inner flange-shaped main girders 62, a pair of joint plates 63, and a plurality of reinforcing members 64. Yes. A plurality of bolt holes 65 are formed in the main beam 62 at predetermined intervals in the circumferential direction S.

  As shown in FIGS. 3 to 6, the segment transport carriage 1 has a carriage body 11 and a plurality of wheels 12 provided on the carriage body 11. Each wheel 12 rolls on a pair of left and right rails 13 laid in the sheath tube 6. In addition, let the traveling direction of the segment conveyance trolley | bogie 1 be the front-back direction X (length direction), and let the direction orthogonal to a traveling direction be the left-right direction Y (width direction).

  The cart body 11 has a cart frame 14 having a square frame shape, and support portions 15 that support the segments 4 are provided on the left and right sides of the cart frame 14. The support portion 15 includes a pair of left and right support frames 16 provided upright on the carriage frame 14, and a pair of left and right support rollers 17 provided at the upper end of the support frame 16. Note that a plurality of support rollers 17 are arranged at predetermined intervals in the front-rear direction X, and are inclined according to the curvature of the segment 4.

  Further, the carriage main body 11 is provided with a segment supply device 20 for supplying the segment 4 from the support roller 17 to the segment assembly position 7 of the erector device 5 so as to be retractable in the front-rear direction X. That is, the segment supply device 20 is supported on the carriage frame 14, and is protruded forward from the carriage body 11 and inclined downward toward the segment assembly position 7 as shown in FIGS. As shown in FIGS. 3 and 6, it can be slid to the retreat position B where it retreats on the carriage main body 11.

  The segment supply device 20 includes a frame frame 21 and a plurality of supply rollers 22 provided on the frame frame 21. The frame frame 21 has a pair of left and right side frames 23 and a pair of front and rear connection frames 24 provided between the side frames 23.

  The supply rollers 22 are arranged on both side frames 23 at predetermined intervals in the front-rear direction X, and are inclined according to the curvature of the segment 4. When the segment supply device 20 is pushed to the retreat position B, the supply roller 22 is positioned between the pair of left and right support rollers 17 and is positioned lower than the support roller 17 as shown in FIG. As shown in FIGS. 1 and 7, a leg member 25 is provided at the front end portion of the frame frame 21 to land in the tunnel 3 when the segment supply device 20 is pulled out to the protruding position A.

  The segment transport carriage 1 is provided with a supply device fixing means 27 for fixing the segment supply device 20 drawn to the protruding position A to the cart body 11. As shown in FIGS. 4, 6, and 8, the supply device fixing means 27 includes a pair of left and right trolley side fixing holes 29 formed in a bracket 28 provided at the front end of the trolley body 11, and a segment supply device 20. A pair of left and right supply device side fixing holes 31 formed at the rear end of the frame frame 21 and a pair of left and right fixing tools 32 such as bolts or pins that can be inserted into and removed from the fixing holes 29, 31. ing.

  As shown in FIGS. 7 and 8, when the segment supply device 20 is protruded to the protruding position A, the supply device-side fixing hole 31 of the segment supply device 20 is directly above the carriage-side fixing hole 29 of the cart body 11. Overlap.

  As shown in FIG. 3, three (a plurality) segments 4 are placed on the support portion 15 in the front-rear direction X. The carriage body 11 is provided with segment fixing means 37 for fixing each segment 4. As shown in FIGS. 3 to 6 and 9, the segment fixing means 37 includes a plurality of front and rear rectangular fixing columns 38 a to 38 e that fix the segment 4 in the front-rear direction X, and the segment 4 in the left-right direction Y and the up-down direction. And a plurality of fixing pins 39 to be fixed.

  Among these, as shown in FIGS. 5 and 6, the foremost fixed columns 38 a and 38 b are provided in a pair on the left and right sides, and are positioned on the outer side of the segment supply device 20 so as not to interfere with the segment supply device 20. doing. Further, the remaining fixed columns 38 c to 38 e are located at the center in the left-right direction Y of the carriage body 11. As shown in FIGS. 9 and 10, each of the fixed columns 38 a to 38 e can be inserted into and removed from the plurality of rectangular tubes 40 provided on the carriage frame 14. 9, the fixed columns 38a to 38e are attached to the carriage main body 11 by inserting the fixed columns 38a to 38e into the square tube 40. As illustrated by the phantom lines in FIG. By removing the .about.38e from the square tube 40, the fixed columns 38a to 38e are removed from the cart body 11. FIG.

  As shown in FIGS. 6 and 9, the fixing pin 39 is provided on the remaining fixing pillars 38 c to 38 e other than the pair of right and left fixing pillars 38 a and 38 b at the foremost part. It can be freely inserted into and removed from the hole 65.

The segment transport carriage 1 is connected to a self-propelled vehicle (not shown) that travels on the rail 13 and travels in the sheath tube 6 together with the self-propelled vehicle.
Hereinafter, the operation of the above configuration will be described.

  As shown in FIG. 3, the tunnel 3 is excavated by using the shield machine 2 and a plurality of segments 4 are placed on the support rollers 17 of the segment conveying cart 1 and the segment conveying cart 1 is run together with the self-propelled vehicle. The segment 4 is conveyed to the back in the sheath tube 6.

  At this time, since each of the fixed columns 38 a to 38 e is inserted into the square tube 40 and attached to the carriage main body 11, each segment 4 is fixed in the front-rear direction X. Further, as shown in FIG. 9, the fixing pins 39 of the remaining fixing columns 38 c to 38 e other than the pair of left and right fixing columns 38 a and 38 b at the foremost part are inserted into the bolt holes 65 of the segments 4. The segment 4 is fixed in the left-right direction Y and the up-down direction. Thereby, since the segment 4 on the support roller 17 is fixed, the segment 4 is not dropped from the segment transport carriage 1 when the segment 4 is transported by the segment transport carriage 1.

  As shown in FIG. 5, the segment 4 is placed and transported on the segment transport carriage 1 in such a direction that the circumferential direction S (see FIG. 2) is the left-right direction Y. When the segment transport cart 1 travels to the far end of the rail 13 and the segment 4 is transported to the near side of the segment assembly position 7, the segment transport cart 1 is stopped.

  Thereafter, as shown in FIG. 7, the segment supply device 20 is pulled forward from the retracted position B to the projecting position A, is inclined downward, and the leg member 25 is landed on the bottom surface in the sheath tube 6. When the segment supply device 20 is pulled out in this way, as shown in FIG. 8, the supply device side fixing holes 31 of the segment supply device 20 are superposed directly on the carriage side fixing holes 29 of the carriage main body 11, and these fixing holes are arranged. The rear end portion of the segment supply device 20 is fixed to the front end portion of the carriage main body 11 by inserting the fixture 32 into 29 and 31. Thereby, it can prevent that the rear-end part of the segment supply apparatus 20 remove | deviates from the front-end part of the trolley | bogie main body 11, and falls.

  Next, as shown by the phantom lines in FIGS. 1 and 9, the pair of left and right fixing pillars 38 a and 38 b at the forefront are removed from the square tube 40 upward and removed from the cart body 11. Thereby, fixation of the front-back direction X with respect to the segment 4 of the foremost part is cancelled | released.

  Thereafter, the support roller 17 is rotated by pushing or pulling out the frontmost segment 4 forward, and the frontmost segment 4 is transferred and easily transferred from the support portion 15 of the carriage body 11 to the segment supply device 20. Further, when the supply roller 22 rotates, the foremost segment 4 is transferred and easily supplied from the segment supply device 20 to the segment assembly position 7.

  At this time, as shown in FIG. 10, since the fixing pin 39 of the second fixing column 38c from the front is removed from the bolt hole 65 of the foremost segment 4, the horizontal direction Y and the upper and lower directions with respect to the foremost segment 4 are removed. The direction is released. Further, as shown in FIG. 1, since the segment supply device 20 is inclined downward, the foremost segment 4 is more easily transferred by the segment supply device 20 by its own weight and supplied to the segment assembly position 7. .

  Thereafter, the second fixing column 38c from the front is removed from the square tube 40 upward and removed from the carriage main body 11, whereby the fixing in the front-rear direction X with respect to the segment 4 at the front-rear intermediate portion is released. Then, similarly to the foremost segment 4, the front and rear intermediate segment 4 is transferred from the support portion 15 of the carriage body 11 to the segment supply device 20, and further supplied from the segment supply device 20 to the segment assembly position 7.

  Thereafter, the third fixed pillar 38d from the front is removed from the carriage main body 11, and similarly, the last segment 4 is transferred from the support portion 15 of the carriage main body 11 to the segment supply device 20, and further from the segment supply device 20 to the segment. Supply to assembly position 7.

  The plurality of segments 4 supplied to the segment assembly position 7 in this way are assembled in an annular shape by the erector device 5, and the sheath pipe 6 is sequentially added behind the shield machine 2.

  At this time, as shown in FIG. 1, it is necessary to extend the rail 13 to the back of the tunnel 3 following the advance of the shield machine 2. Since the segment supply device 20 is provided in the cart main body 11, the segment supply device 20 moves together with the segment conveyance cart 1 by running the segment conveyance cart 1. This eliminates the troublesome work of sequentially moving the installation position of the segment supply device to the back of the sheath pipe separately from the movement of the segment transport carriage as in the prior art, and saves labor and labor in the sheath pipe 6. Can be reduced.

  In addition, after all the segments 4 on the cart body 11 are supplied to the segment assembly position 7 and the cart body 11 is emptied, the fixing columns 38a to 38d are respectively inserted into the square tubes 40 as shown in FIG. Then, as shown by the phantom line in FIG. 8, the fixture 32 is removed from the carriage side fixing hole 29 and the supply apparatus side fixing hole 31 to release the fixing of the segment supply apparatus 20. .

Next, the segment supply device 20 is pushed backward from the protruding position A to the retracted position B, and is retracted between the two support portions 15 of the carriage main body 11.
Thereafter, the empty segment transport carriage 1 is moved with the self-propelled vehicle and moved from the sheath pipe 6 to the vertical shaft (not shown), and a plurality of segments 4 newly introduced in the vertical shaft are mounted on the segment transport cart 1. These segments 4 are transported by the segment transport cart 1. After forming the sheath pipe 6 in this way, a plurality of carry-in pipes (not shown) are carried into the sheath pipe 6, and these carry-in pipes are connected to each other to connect the main pipe such as a water pipe to the sheath pipe 6. Lay in.

In the above embodiment, as shown in FIG. 3, the three segments 4 are mounted on the segment transport carriage 1, but a plurality or a single number other than three may be mounted.
In the above-described embodiment, the operator manually pulls out and pushes in the segment supply device 20. However, the carriage main body 11 is provided with a loading / unloading drive device including a cylinder device and a motor, and is automatically operated by the loading / unloading drive device. The segment supply device 20 may be pulled out and pushed in.

1 Segment transport cart 2 Shield machine 3 Tunnel 4 Segment 5 Elector device (segment assembly device)
6 sheath tube (tubular body)
7 Segment assembly position 11 Bogie body 15 Support section 20 Segment supply device

Claims (4)

A segment conveying cart used for a non-open cutting method of excavating a tunnel using a shield machine and assembling a plurality of segments conveyed in the tunnel with a segment assembly device of the shield machine to form a tubular body,
The carriage main body is provided with a support portion for supporting the segment, and a segment supply device for supplying the segment from the support portion to the segment assembly position of the segment assembly device of the shield machine .
The segment supply device is provided in the bogie body so that it can be moved in and out
The segment supply cart, wherein the segment supply device is pulled out from the cart body and tilts downward toward the segment assembly position in a state where the segment is supported by the support portion . The segment supply device has a leg member that lands in the tunnel when pulled out from the retracted position to the protruding position.
Supply device fixing means for fixing the segment supply device pulled out to the protruding position to the carriage body is provided,
The supply device fixing means has a carriage side fixing hole provided in the carriage main body, a supply device side fixing hole provided in the segment supply device, and a fixture that can be inserted into and removed from both the fixing holes. The segment transport cart according to claim 1 . It is a non-open cutting method of excavating a tunnel using a shield machine and assembling a plurality of segments conveyed in the tunnel with a segment assembly device of the shield machine to form a tubular body,
The segment is supported by the support part of the carriage body of the segment transportation carriage and transported to the front side of the segment assembly position of the segment assembly equipment of the shield machine in the tunnel.
With the segment supported by the support body of the carriage body, the segment supply device provided in the segment transport carriage is pulled out of the carriage body and tilted downward toward the segment assembly position.
A non-cutting method characterized in that a segment is delivered from a support portion of a cart body to a segment supply device and supplied to a segment assembly position. Pull out the segment supply device from the carriage body to the protruding position, incline downward toward the segment assembly position, and land the leg member provided on the segment supply device in the tunnel,
The trolley side fixing hole provided in the trolley body and the supply device side fixing hole provided in the segment supply device are overlapped,
4. The non-cutting method according to claim 3, wherein the segment supply device is fixed to the carriage main body by inserting a fixture into both the fixing holes.

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