JPH089273Y2 - Lateral movement device for shield machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is a lateral movement of a shield machine in a shield construction in which a shield machine is inserted from a vertical pile opening and pushed by a jack to excavate the soil. It relates to a device that performs lightly, safely and reliably.

[Prior art] Since shield work often involves excavating the bottom of the road, it is ideal to stop the traffic on the road and lower it to the starting position below the road when lowering the shield machine to the bottom of the pile. Target. However, at the site, it is often impossible to stop the traffic due to heavy traffic volume.In such a case, use a part of the road width to provide a vertical pile opening on the side of the road and shield it from the opening. The method is to take down the machine and then move it sideways.

The conventional shield machine lateral movement device is a method of simply pushing the shield machine pedestal with a lever or the like in a state where the direction is not fixed, or laying an iron plate on the floor and placing the pedestal on it. A method of moving a cradle by rolling a roller between the cradle and an iron plate is known. However, the former method has a problem that the direction is not fixed and the operation of pushing the shield machine with 50 to 200 tons is extremely difficult, and it is also dangerous, and the latter method uses a roller, so it moves. Can be done lightly,
It was troublesome to bring the rollers forward one by one, and on top of that, there was a problem that the rollers and the iron plate had to be removed when the shield machine was started.

[Problems to be Solved by the Invention] The present invention has been made in view of the above problems of the conventional technology. The purpose of the present invention is to install a shield machine directly on the starting stand of the shield machine. It is intended to provide a lateral movement device for a shield machine that can be laterally moved so that it can be slid on the slide rail as it is, and after the movement, the shield machine can be started as it is. is there.

[Means for Solving the Problems] In order to achieve the above-mentioned object, a lateral movement device for a shield machine according to the present invention is an entrance side standing pile into which a shield machine A is inserted.
At the bottom of 10, the shield machine starting cradle 1 is supported, and the starting cradle is supported from below so that it can slide laterally between the position directly below the standing pile opening 11 and the starting position of the shield machine. A traverse slide rail 2 fixed at a fixed position, and a drive device 3 for pulling or pushing the starting cradle 1 so as to traverse the traverse slide rail 2 are provided, and the slide of the traverse slide rail 2 is provided. A sliding member 4 made of a sliding plate or a lining is provided on the lower surface 1'of the starting cradle supporting leg 1c corresponding to the surface.

The traverse slide rail 2 is formed in an upward U-shape having flanges 2a and 2b on both right and left sides.

[Operation] The starting cradle 1 in which the shield machine A is suspended from the crane and is waiting from the opening 11 of the vertical pile 10 to the bottom of the opening in advance.
Grate it up.

Since the shield machine starting and receiving cradle 1 is supported on the transverse slide rails 2 and guided so as to freely slide transversely between the shield machine starting positions laterally below the standing pile opening 11, FIG. The pedestal 1 and the wire cable 5 as shown in
When the lever block 6 is pulled, the shield machine A moves laterally to the left (direction of arrow A in FIG. 1) together with the pedestal 1. When the shield machine A moves to a predetermined starting position, the towing operation is stopped, and then the jack is pushed to start the shield machine A. The shield machine A is guided to the support rails 1a.1b of the pedestal 1. While moving forward (in the direction of arrow B in Fig. 2), excavate the soil.

A sliding member 4 made of a polymer resin such as nylon is provided at the bottom of the shield machine starting and receiving cradle 1 and is in contact with the upper surface of the traverse slide rail 2 so that it can slide smoothly with a small friction coefficient. . The right and left sides of the slide rail 2 are restricted by the flanges 2a and 2b projecting upward, so that the starting cradle 1 is fixed to the rail 2
Accurate lateral movement can be performed without causing lateral blurring.

[Example] The starting cradle 1 includes support rails 1a.1b in which two rails made of I-shaped steel are provided in parallel, and two rails made of the same I-shaped steel so as to support the support rails from below. The rail body 1c is formed by joining the rail bodies 1c at right angles to form a unit.
A slide member 4 made of a polymer resin such as nylon or a lining is attached to the bottom surface 1'of 1c, and as shown in FIG.

As shown in FIGS. 3 to 4, the traverse slide rail 2 is made of steel having a U-shaped cross section having upwardly projecting flanges 2a and 2b, and a flat plate 2c is integrally attached to the upper surface thereof. In addition, grease is applied to the upper surface of the sliding member 4 so that it can slide more smoothly.

Such a traverse slide rail 2 is fixed on a base 9 made of I-shaped steel.

The drive device 3 causes the starting cradle 1 to traverse, and when the wire cable 5 is tied to a part of the cradle 1 and the other end is fixed to the side wall of the vertical pile and operated by the lever block 6, the wire is fed from one end. The cable is wound and the cradle 1 is pulled. Further, instead of such a wire cable, a pushing device such as a hydraulic cylinder, or a mechanism which is normally used may be used.

[Advantage of the Invention] Since the present invention is configured as described above, the shield machine can be easily and laterally moved by using the starting cradle and the traverse slide rail without using the conventional lever or roller. Since the start cradle can be used for lateral movement, the shield work can be performed as the start cradle as it is after the horizontal movement of the shield machine, and the work efficiency of the shield work can be improved. In addition, the shield machine is guided along the traverse slide rail while being supported by the starting cradle, so the directionality is decided, there is no horizontal blur, and the position between the position directly below the vertical pile opening and the starting position is accurate. Can be freely moved, and the starting position can be easily adjusted. In addition, the structure is simple, and it is expected to have practically excellent effects such as inexpensive implementation.

[Brief description of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a vertical sectional front view of the inside of an entrance-side standing pile, and FIG. 2 is II in FIG.
Fig. 3 is a sectional view taken along line -II, Fig. 3 is an enlarged vertical sectional front view of an essential part of a lateral movement device of a shield machine according to the present invention, and Fig. 4 is a longitudinal sectional side view of the same. A ... Shielding machine, 1 ... Start cradle 2 ... Traverse slide rail 3 ... Drive device, 4 ... Sliding member 5 ... Wire cable, 6 ... Lever block 1a.1b ... Support rail, 2a. 2b …… Flange

Claims (2)

[Scope of utility model registration request] 1. A shield machine starter cradle 1 is provided at the bottom of an entrance-side vertical shaft 10 into which a shield machine A is inserted, and a position directly below a vertical shaft opening 11 and a starter position of the shield machine, which supports the starter base from below. And a traverse slide rail 2 fixed at a fixed position so as to slidably guide the space between and, and a drive unit 3 for pulling or pushing the starting cradle 1 so as to traverse along the traverse slide rail 2. And a sliding member 4 made of a sliding plate or a lining is provided on the lower surface 1 ′ of the starting cradle support leg 1c corresponding to the sliding surface of the transverse slide rail 2. Lateral movement device. 2. The lateral movement device for a shield machine according to claim 1, wherein the transverse slide rail 2 is formed in an upward U-shape having flanges 2a and 2b on both right and left sides.