JP2952621B2 - Extension method of rail for segment supply trolley - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a shield method,
The present invention relates to a method for extending a rail for a segment supply trolley for extending a rail for a trolley on which a segment supply trolley for supplying a segment for tunnel lining to an erector along with the propulsion of a shield machine.

[0002]

2. Description of the Related Art When a tunnel is constructed by a shield method, a tunnel face is generally cut at a cutting edge at a front end of the shield machine, and while the face is being held, the shield machine is propelled by a rear jack thrust and the shield machine is driven. During propulsion, segments formed in an arc shape are assembled by an erector to complete the lining.

An example of a conventional segment supply system will be described with reference to FIG. Reference numeral 1 denotes a shield machine, in which a segment assembling erector 3 is provided at a rear portion in a shield frame 2. At the bottom of the tunnel 4 already constructed by the shield machine 1, a truck rail 7 for running a segment supply truck 6 connected to the shield machine 1 via a pull wire 5 is laid via a sleeper 8. I have. The segment supply trolley 6 stores the segments 9 received from the segment trolley 10 carried in from the rear. For example, the hoist is moved to the position of the erector 3 along a hoist beam (both not shown). The segment 9 is supplied to the erector 3 to supply the segment 9.

[0004]

However, in the case of the above-mentioned segment supply system, the segment supply truck 6 is pulled by the pulling wire 5 to follow the proximity as the shield machine 1 is propelled. It is necessary to sequentially extend the rail 7 forward. Conventionally, the work of extending the rail 7 for the carriage is performed by adding a short rail having a length of one piece of the segment 9 to the front before the segment supply carriage 6 is pulled. There are complications.

Accordingly, the present invention is directed to an extension of a rail for a segment-supply truck which can easily extend the rail for a truck with the propulsion of a shield machine without successively adding short rails in front of the truck. It seeks to provide a way.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a segment assembling erector provided on a shield machine for receiving a tunnel lining segment from a segment supply truck subsequent to the shield machine. A segment, wherein a rail for a trolley for running the segment supply trolley is extended forward by pulling from the shield machine side in accordance with the propulsion of the shield machine when supplying the vehicle in a passing manner. The method is to extend the rail for the supply cart.

[0007]

When the front end of the bogie rail is pulled from the side of the shield machine, the bogie rail is entirely extended forward. Accordingly, by pulling the bogie rails along with the propulsion of the shield machine, it is not necessary to successively add short rails in front of the segment supply bogies.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show an embodiment of the present invention. Similar to the embodiment shown in FIG. 3, the segment supply truck 6 is pulled on the truck rail 7 with the propulsion of the shield machine 1. FIG. So that the segment 9 can be delivered from the segment supply truck 6 to the erector 3, and a truck rail 7 for running the segment supply truck 6 is driven along with the propulsion of the shield machine 1. , By being pulled from the side of the shield machine 1 so as to extend forward.

More specifically, the segment supply truck 6 includes:
A jack-up device 13 is provided in advance at a lower end position corresponding to the sleeper 8, while a winch 11 is installed on the shield machine 1, and the wire 12 pulled out from the winch 11 is used for the bogie. It is locked on the front end of the rail 7. Therefore, when it becomes necessary to extend the bogie rail 7 forward, the jack-up device 13 is required.
Is extended on the sleeper 8, so that the segment supply truck 6 is appropriately lifted from the truck rail 7, and then, while the sleeper 8 is laid in front of the segment supply truck 6, the shield machine 1 The winch 11 on the side is wound and driven to wind the wire 12. When the wire 12 is wound around the winch 11, the trolley rail 7 is pulled forward by that amount as shown by a two-dot chain line in FIGS. 1 and 2. 7 has been stretched.

[0011] In the above, the tunnel 4
The trolley rail 7 laid inside is to be removed after the construction of the tunnel 4, and is not completely fixed on the sleeper 8, but is held on the sleeper 8 so that it does not shift left and right. Therefore, it can slide in the front-rear direction. Further, in the above description, the bogie rail 7 is eliminated by an amount corresponding to the extension behind the bogie rail 7 extended forward by towing, but a short rail may be added in a timely manner. Since it is the work behind the supply truck 6, it is much easier than the work ahead of the segment supply truck 6. Here, the short rail for replenishment has a length of about 6 m similar to the rail used for laying forward with a normal shield. In this case, it is necessary for the segment supply truck 6 to follow the shield machine 1 in close proximity, but there is no problem in following the rear equipment truck about 6 m away.

It should be noted that the present invention is not limited to only the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention.

[0013]

As described above, according to the method for extending the rail for the segment supply truck of the present invention, the rail for the truck for running the segment supply truck is moved along with the propulsion of the shield machine. To extend the rail forward by pulling it from the front, so that it has an excellent effect that the rail can be easily extended compared to the case where short rails are successively added in front of the segment supply truck I do.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an embodiment of a method for extending a rail for a segment supply truck according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a schematic diagram showing an example of a conventional segment supply method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shield machine 3 Segment assembly erector 6 Segment supply truck 7 Truck rail 11 Window 12 Wire 13 Jack-up device

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Ranage 11-1 Kitahama-cho, Chita-shi, Aichi Prefecture Ishikawajima-Hari Maju Industry Co., Ltd. Inside the Aichi Plant (72) Inventor Toshiaki Uehara 11-1 Kitahama-cho, Chita-shi, Aichi Prefecture Ishikawajima-Hari Ma Heavy Industries Co., Ltd. Aichi Factory (58) Fields investigated (Int.Cl. ⁶ , DB name) E21F 13/02 E01B 23/02 E21D 11/40

Claims (1)

(57) [Claims] When a segment assembling erector mounted on a shield machine is supplied to a segment assembling truck following the shield machine so as to deliver a segment for tunnel lining, the segment supply truck travels. A method for extending a rail for a segment supply trolley, wherein the trolley rail is stretched forward by pulling the trolley rail from the shield machine side in association with the propulsion of the shield machine.