JP4178945B2 - Material conveying method and conveying device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a material transport method and a transport device that transport materials (segments, etc.) in a tunnel independently from the assembly of floorboards.
[0002]
[Prior art]
In a tunnel for a vehicle road or the like, a floor board that divides the inside of the tunnel up and down is laid in the axial direction of the tunnel, and this floor board serves as a vehicle traveling surface. The material such as segments constituting the outer shell of the tunnel is transported in the tunnel in the axial direction by the transport carriage, and such a carriage is generally of a type that travels on a rail laid on a floor plate (for example, Non-patent document 1).
[0003]
[Non-Patent Document 1]
Yoshiaki Morikita and two others "Construction of the Kasumigaura Water Transfer Project Naka Waterway", Civil Engineering Technology Volume 50, No. 11, p. 33-40, FIG.
[0004]
[Problems to be solved by the invention]
However, with this type, the rails of the carriage cannot be laid on the floor board after it is laid in the tunnel. For this reason, the transportation of materials such as segments by the carriage has been hindered by the laying and assembling work of the floorboard, and the construction period has been delayed.
[0005]
An object of the present invention, which was created in view of the above circumstances, is to provide a material conveying method and a conveying device that can separate material conveyance from floor plate assembly and shorten the construction period.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the material transport method according to the first aspect of the present invention is a method of lowering an actual carriage loaded with materials from an assembly surface of floor boards sequentially laid so as to partition the inside of the tunnel up and down. after moving forward in lower portion of the space, it was waiting in the space below the floor, moving the empty carriage has finished transferring the material to the assembly face of the upper of the floor plate, the spatial dolly A new material is loaded by moving backward on the assembly surface of the floorboard . The step of lowering the cart loaded with the material downward from the assembly surface of the floor board may be performed in a shaft connected to the tunnel.
[0007]
In addition, the material conveying apparatus according to the second invention includes a floor plate that is sequentially laid by dividing the inside of the tunnel up and down, and an actual cart loaded with the material, or an empty cart that has finished transferring the material. an upper traveling path but the traveling, the elevator to raise the actual carriage of the upper traveling path from floor surfaces to bath in the space below, the upper running path the empty carriage from the lower space, the provided below the space A lower traveling path on which the actual carriage or the empty carriage travels, and a lower standby rail connected to the lower traveling path for waiting the empty carriage . You may arrange | position the said elevator in the shaft connected to the tunnel.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the accompanying drawings.
[0009]
FIG. 1 is a plan sectional view of a tunnel to which a material transport method and a transport apparatus according to the present embodiment are applied, and FIG. 2 is a side sectional view of the tunnel.
[0010]
The illustrated example is a tunnel 1 for a vehicle road or the like. As shown in the drawing, inside the tunnel 1, a floor plate 2 that divides the inside of the tunnel 1 up and down is laid sequentially forward along the axial direction of the tunnel 1. A dedicated laying device (not shown) is used for laying the floor board 2. This floor board 2 becomes a running surface of the vehicle after the tunnel 1 is completed.
[0011]
An upper rail 4 is laid on the floor plate 2 as an upper traveling path on which the transport carriage 3 travels. The upper rail 4 includes an upper main rail 4a that guides the carriage 3 from the tunnel entrance side (vertical shaft side) A to the tunnel rear side (face side) B, and an upper standby rail 4b that branches from the upper main rail 4a and waits for the carriage 3 And have.
[0012]
The carriage 3 includes a mounting carriage 3a and a traveling carriage 3b that are connected to each other. On the mounting carriage 3a, materials such as the segments 5 constituting the outline of the tunnel 1 and the floor board 2 (made of concrete, steel plate, etc.) are placed. The traveling carriage 3b may be a towing type instead of a type that pushes the mounting carriage 3a as shown in the figure.
[0013]
The floor board 2 is provided with an elevator 6 that lowers the carriage 3 on the upper main rail 4a downward from the floor board 2 surface. The elevator 6 has an opening 7 provided on the floor plate 2 so as to communicate with the upper and lower sides. The opening 7 is interposed in the middle of the upper main rail 4 a and is formed in an elongated rectangular shape that is slightly larger than the plane area of the carriage 3.
[0014]
The opening 7 is provided with a lifting plate 8 that is lifted and lowered by a lifting mechanism (not shown) (known winch, chain, cylinder, etc.). The elevating plate 8 is composed of a long and narrow plate formed in accordance with the opening 7. On the upper surface of the elevating plate 8, an intermediate rail 9 is laid so as to be connected to the upper main rail 4a.
[0015]
On the bottom surface of the tunnel 1, a lower rail 10 is laid as a lower traveling path on which the carriage 3 lowered by the elevator 6 travels. The lower rail 10 includes a lower main rail 10 a laid from the elevator 6 in the axial direction forward of the tunnel 1, and a lower standby rail 10 b laid from the elevator 6 in the axial rearward direction.
[0016]
A recess 11 is provided between the lower main rail 10a and the lower standby rail 10b to engage with the raised and lowered plate 8. When the elevating plate 8 is engaged with the recess 11, the intermediate rail 9 of the elevating plate 8 is connected to the lower main rail 10a and the lower standby rail 10b. Each rail 10a, 10b is formed with an inclined portion in consideration of the thickness of the elevating plate 8.
[0017]
A material transport method using the transport device for materials (segment 5, floor board 2, rails 4, 10, etc., the same applies hereinafter) having the above configuration will be described with reference to FIGS.
[0018]
As shown in FIG. 3, first, an empty cart (empty cart) 3x on which no material such as the segment 5 is placed on the lower standby rail 10b is put on standby, and the elevating plate 8 is lifted to raise the floor plate 2 and Keep it flush. In this state, the actual carriage 3y (the carriage on which the material such as the segment 5 is placed) traveling on the upper main rail 4a from the tunnel entrance side A is transferred onto the intermediate rail 9 of the elevating plate 8.
[0019]
Next, as shown in FIG. 4, the elevating plate 8 descends and engages with the recess 11 on the bottom surface of the tunnel 1. Then, the actual carriage 3y on the lifting plate 8 travels forward on the lower main rail 10a, the rails 10a placed on the actual carriage 3y are sequentially laid, and the segment 5 placed on the actual carriage 3y Supplied to the segment assembly device (elector) of the shield machine on the tunnel back side B. At the same time, the empty carriage 3x on the lower standby rail 10b moves forward and transfers to the intermediate rail 9 of the lift plate 8 as shown in FIG.
[0020]
Next, as shown in FIG. 6, the elevating plate 8 rises and becomes flush with the floor plate 2. Then, the empty carriage 3x on the lifting plate 8 moves the upper main rail 4a to the tunnel entrance side A. In the moved empty carriage 3x, a new material (segment 5 or the like) is placed on the tunnel entrance side A to become the actual carriage 3y, or exchanged with another actual carriage 3y. Then, if the empty carriage 3x moves away from the lifting plate 8 in FIG. 6, the lifting plate 8 is lowered and engages with the recess 11 on the bottom surface of the tunnel as shown in FIG.
[0021]
Then, the rail 10a is laid on the back side B of the tunnel, the segment 5 is supplied to the erector, the cargo (material) is lost, and the cart 3x, which has become the empty cart 3x from the actual cart 3y, retreats the lower main rail 10a. Then, the vehicle goes over the intermediate rail 9 of the lift plate 8 and stops on the lower standby rail 10b. And the raising / lowering board 8 raises and it becomes flush | level with the floor board 2, as shown in FIG. Thereby, it returns to the initial state shown in FIG. 3 described first, and thereafter, the steps of FIGS. 3 to 8 are repeated.
[0022]
In this manner, the material such as the segment 5 is shifted downward from the assembly surface of the floor board 2 and transferred forward in the space below the floor board 2, thereby separating the transportation of the material such as the segment 5 from the assembly of the floor board 2. Can shorten the work period. That is, the laying of the floor board 2 and the transportation of the material such as the segment 5 can be performed independently, and the laying of the floor board 2 can be independently performed separately from the transportation of the material such as the segment 5.
[0023]
In addition, since the empty cart 3x that is waiting on the lower standby rail 10b is used to circulate the actual cart 3y and the empty cart 3x, the cycle time can be shortened. That is, while the actual carriage 3y moves forward on the lower main rail 10a and transfers the material such as the segment 5 to the tunnel rear side B, the empty carriage 3x moves back on the upper main rail 4a and returns to the tunnel entrance side A. Since the new segment 5 is loaded, the cycle time can be earned.
[0024]
On the other hand, as shown in FIGS. 1 and 2, the floor board 2 is placed on the carriage 3 and conveyed from the tunnel entrance side A to the back side B along the upper main rail 4a. And it passes through the intermediate rail 9 of the raising / lowering board 8, is conveyed to the installation tip position of the floor board 2, and is laid so that it may partition in the tunnel 1 by the floor board assembly apparatus which is not shown in figure.
[0025]
During such transporting and laying work, an empty carriage (not shown) that has been waiting on the upper standby rail 4b shown in FIG. 1 is moved to the upper main rail 4a, and is retracted along the upper main rail 4a. Return to inlet side A. And after loading the new floor board 2 and making it a real trolley, it advances along the upper main rail 4a.
[0026]
At substantially the same time as this step, the empty carriage, in which the floor plate 2 is assembled on the tunnel back side B and has no cargo, is retracted along the upper main rail 4a and stopped on the upper standby rail 4b. Such an empty cart becomes a new standby cart. And the cycle time of the floor board 2 can also be earned by repeating the above-mentioned operation | work.
[0027]
As described above, the upper main rail 4a behind the elevator 6 is a line through which the segment 5 and the floor board 2 are conveyed, and the upper main rail 4a ahead from the elevator 6 is a line through which the floor board 2 is conveyed, The lower main rail 10a is a line through which the segment 5 is conveyed.
[0028]
9 and 10, the elevator 6 is arranged in a shaft 12 that is a starting point of the tunnel 1. According to this embodiment, the process of lowering the segment 5 downward from the assembly surface of the floor board 2 is performed in the shaft 12. Therefore, the upper main rail 4a is a line for transporting the floor plate 2, and the lower main rail 10a is a line for transporting the segment 5, and the transport space of the floor plate 2 and the transport space of the segment 5 are completely up and down. Divided.
[0029]
In this type, the lower standby rail 10 b cannot be laid behind the elevator 6. Therefore, the same thing as the upper side standby rail 4b shown in FIG. 9 is provided in the bottom part of the shaft 12 by the side of the elevator 6, this is made into a lower side standby rail, and an empty cart is stopped there. Thereby, the segment 5 can be transported similarly to the previous embodiment using the empty cart and the actual cart, and the cycle time can be earned.
[0030]
【The invention's effect】
As described above, according to the material conveying method and the conveying device according to the present invention, the conveyance of the material such as the segment can be separated from the assembly of the floor board, so that the construction period can be shortened.
[Brief description of the drawings]
FIG. 1 is a plan sectional view of a material conveying apparatus according to an embodiment of the present invention.
FIG. 2 is a side sectional view of the transfer device.
FIG. 3 is a side sectional view showing a material conveying method using the conveying device.
FIG. 4 is a side cross-sectional view showing the continuation of the transport method.
FIG. 5 is a side cross-sectional view showing the continuation of the transport method.
FIG. 6 is a side sectional view showing a continuation of the transport method.
FIG. 7 is a side sectional view showing the continuation of the above conveying method.
FIG. 8 is a side cross-sectional view showing the continuation of the conveying method.
FIG. 9 is a plan cross-sectional view of a transport apparatus showing another embodiment.
FIG. 10 is a side sectional view of the transfer device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tunnel 2 Floor board 4 Upper rail 4a upper main rail 4b upper standby rail 5 as upper runway Segment 6 as main materials Elevator 8 Lifting board 10 Lower rail 10a as lower runway Lower main rail 10b Lower side Standby rail 12 shaft

Claims (4)

The actual carriage loaded with materials, down downward from the assembly surface of the floor plate which are sequentially laid so as to divide the tunnel vertically and allowed to move forward in the space below the floor plate, the lower of the floorboard Move the empty cart that has been transported to the above-mentioned floor material to the assembly surface of the floor plate above, and move the empty cart rearward on the assembly surface of the floor plate to load a new material. A material transport method characterized by that. The material conveying method according to claim 1, wherein the step of lowering the cart loaded with the material downward from the assembly surface of the floor board is performed in a shaft connected to the tunnel. A floor board that is sequentially laid by dividing the inside of the tunnel up and down, an upper traveling path that is provided on the floor board and on which an actual carriage loaded with materials or an empty carriage that has finished transferring materials travels, and the above on the upper traveling path the actual bogie to bath in the space below the floor surface, and an elevator to raise the upper running path the empty carriage from the lower space, the lower running path of the actual carriage or the empty carriage is provided below the space travels A material conveying apparatus comprising: a lower standby rail connected to the lower traveling path for waiting the empty carriage .   The material conveying apparatus according to claim 3, wherein the elevator is disposed in a vertical shaft connected to a tunnel.

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