JP2530520B2 - Form moving and assembling equipment for shield method - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention is particularly suitable for building underground roads, railways, water and sewage systems, tunnels for power and communication facilities and underground spaces such as underground parking spaces. The present invention relates to a device for moving, assembling, and disassembling a formwork used for forming a concrete lining in a shield pier with a medium diameter.

[0002]

2. Description of the Related Art Conventionally, large and medium diameter shield excavators used for mud pressure type, mud pressure type and earth pressure type shield construction methods are equipped with a discharge pipe or cable for discharging excavated earth and sand behind them. Along with the hollow shaft inserted, a formwork erector for assembling, demolding and carrying an inner formwork for cast-in-place lining is provided. Explaining the mud pressure method, for example, a shield machine excavates the ground, excavates the excavated earth and sand with an earth discharge pipe with a screw conveyor or a belt conveyor inserted, and applies a reaction force to the end surface of the inner formwork. While progressively advancing, the inner formwork was demolded from the part of the concrete lining that had been cured, the inner formwork that had been demolded was carried forward, and the inner formwork that had been carried by this formwork erector Assemble the formwork. Then, fresh concrete is placed in the space between the assembled inner formwork and the excavated wall surface. By repeating such work, the concrete lining of the tunnel in the shield construction method is formed.

[0003]

However, in the cast-in-place lining method as described above, when the diameter of the drilling hole is relatively large, the number of divisions of the mold is large and the weight is large, and the mold for one element is large. There is a problem that it is difficult to transport the frame at one time and a traveling rail for the formwork erector must be laid.
In addition, equipment for transporting and assembling reinforcing materials such as reinforcing bars to be installed in the lining space is required, and moreover, means for discharging excavated earth and sand, such as belt conveyors, screw conveyors, electric cables, hydraulic hoses, etc. Since there are other types, there is a drawback that the facilities in the tunnel are congested and work efficiency decreases. The present invention has been made in view of the above problems, eliminating the work related to the rail for traveling,
It is an object of the present invention to provide a moving and assembling apparatus for a shield construction formwork, which has improved the work efficiency by improving the arrangement of the hollow shaft for soil discharge and the erector applicable to both the muddy water type and the earth pressure type.

[0004]

The gist of the present invention for solving the above-mentioned problems and achieving the above-mentioned object is to provide a guide extending at least to the rear of the existing formwork behind the shield machine.
A cylinder body that is formed so as to be movable along the drive rail, and the cylinder.
A moving device for moving the main body and a circumferential direction with respect to the cylinder main body
A rotary drum provided on the cylinder body so as to be rotatable in any direction.
And a carrying jig provided on the rotating drum for carrying the formwork.
A moving / assembling device including a jack, the cylinder body
Installed on the outer peripheral surface of the guide rail.
Hollow shaft, and the hollow shaft with the shield machine
The shaft pedestal to be supported at the rear of the
It is equipped with a jack that is connected to the rotary drum and can rotate together.
And a reaction table, and the hollow shaft
Pipes such as excavated soil discharge device and cables are stored in the hollow part.
It is paid. Also, the transport jack is
Detachable jack for demolding, transporting and assembling formwork
The swing jack that adjusts the angle of the jack and the formwork
A grip jack for gripping;
The jack reaction force base and the rotary drum are used to adjust the tilt angle.
It is pin-coupled so that the relative tilt angle can be adjusted with a stick.
And. Transfer the formwork for the shield construction method formed in this way.
Work with cast-in-place lining method using moving / assembling equipment
The efficiency is improved.

[0005]

Next, the present invention will be described with reference to the drawings. FIG. 1 is a side view showing the whole of a moving / assembling device (hereinafter, simply referred to as a moving / assembling device) 1 for a shield construction form. The moving and assembling apparatus 1 for the formwork for the shield construction method is
Behind the shield machine 2, an earth discharging device a for discharging excavated earth and sand, and a pipe group b for cables, pipes and hydraulic hoses.
Is formed by inserting the hollow shaft 3 into which is inserted.

[0006] That is, since the movement of the mobile and assembling apparatus 1 is provided with a travel freely shaft pedestal 4 with supporting the end portion 3a of the hollow shaft 3. The shaft pedestal 4 is provided with wheels 6 that roll on the concrete lining 5, so that the shaft pedestal 4 can travel with respect to the concrete lining 5. Then, as shown in FIG. 2, a rectangular guide rail 7 is provided on the outer peripheral surface of the hollow shaft 3 in parallel with the axis of the hollow shaft 3. This guide rail 7, as shown in FIG.
Even if not, it is extended to the rear end of the existing formwork 16.
Then, the hollow shaft 3 is inserted to form a cylindrical main body 1a which is movable along the guide rail 7. A moving device 8 for moving with respect to the hollow shaft 3 is provided in the cylinder body 1a.

The moving device 8 includes a driving hydraulic motor 8a.
A traveling wheel 8b rotated by the hydraulic motor 8a is provided, and the traveling wheel 8b rolls on the flat surface of the guide rail 7. In addition to this, this moving method uses known technical means such as pulling with a chain or the like. In this embodiment, the hydraulic motor 8a and the traveling wheels 8 are
b and 4 are provided at four places. Such a traveling device 8
With this, the cylinder body 1a is movable in the axial direction with respect to the hollow shaft 3.

Next, a cylindrical rotary drum 1b which is rotatable in the circumferential direction of the cylinder body 1a is provided. The rotating drum 1b is a rolling wheel 1 which is axially supported by a bracket 9 which projects from the inner wall surface of the cylinder body 1a toward the axis.
Zeros are provided at a plurality of positions on the inner wall surface, and the outer circumference of the hollow shaft 3 is rotatably attached to the rolling wheel 10 so as to be rotatable. Rotational teeth 1c are engraved on the outer periphery of the rotary drum 1b, which meshes with a gear 11a fixed to the shaft of a hydraulic motor 11 installed in the cylinder body 1a, and the rotary motor 1b is driven by the hydraulic motor 11. Rotates.

A rotatable fulcrum 12 is projected from the side surface of the rotary drum 1b, a bracket 13 pin-connected to the fulcrum 12 and a tilt angle adjusting jack abutting the side surface of the rotary drum 1b. A jack reaction force base 15 is supported by 14 and. The jack reaction force platform 15 has detachable jacks 17 of different lengths for transporting the mold 16, a swinging jack 18 for adjusting the angle of the detachable jack 17, and a mold at the tip of the detachable jack 17. 1
A grip jack 19 for gripping 6 is provided.

As shown in FIG. 3, the mold 16 is divided into five parts for the entire circumference of one element, the upper three molds are connected by a hinge 20, and the lower two molds are similarly hinged 20. They are connected, and the detachable jacks 17 perform demolding, transportation, and assembly at once. Further, when the attaching / detaching jack 17 of the jack reaction force table 15 and the form frame 16 do not match with each other and the work is difficult, the tilt angle adjusting jack 14 is used.
Is expanded and contracted to slightly rotate the attachment / detachment jack 17 around the fulcrum 12 to adjust the angle of the connection. Further, as shown in the right half cross section of FIG. 4, the suspension jack 21, the towing jack 22, and the horizontal jack 23 can cope with rolling and pitching of the shield machine 2. As explained in detail above,
A moving / assembling device 1 for a formwork for a shield construction method is formed, mounted on a hollow shaft 3 of a shield machine 2, remote-movable in the axial direction of the hollow shaft 3, and further rotated in a circumferential direction. Freely, dismantle the formwork 16,
Transporting and assembling work can be performed with this moving / assembling device 1.

Next, a method of using the moving / assembling apparatus 1 will be described. First, the hydraulic motor 8a of the moving device 8 of the moving / assembling device 1 is rotated to move the moving / assembling device 1 to the position of the rearmost mold 16 and the detachable jack 17 is extended as shown in FIG. Then, the mold 16 is gripped by the grip jack 19. Then, the upper three molds are demolded, and further, the swing jack 18 is contracted to contract the mold 16 inward. In addition, attach / detach jack 17 with grip jack 19
Grab the mold, remove it, and swing jack 18
The form 16 is contracted with. In this way, the mold 16 for one element divided into five is held by the moving / assembling device 1 at a time.

Next, the hydraulic motor 8a of the moving device 8 is reversely rotated with respect to the rotation in the moving direction to move the moving / assembling device 1 toward the shield machine 2 and move the frontmost formwork 16 Assemble the formwork 16 for one element that has been transported further forward. And excavation wall surface and formwork 1
While pouring concrete into the gap of 6, the press jack 24 presses it to fill it. And after concrete curing,
Along with the excavation of the shield machine 2, the rod of the shield jack 25 is extended and a reaction force is applied to the form 16, and the outer shield machine 2 is advanced. Also, while the moving / assembling device 1 is performing work such as disassembling the formwork 16, the earth and sand excavated by the cutter of the shield machine 2 is carried by an earth discharging device 26 such as a screw conveyor, and is hollow. A soil discharging device a such as a screw conveyor or a belt conveyor inserted in the shaft 3
The soil is discharged from the discharge port 27 at.

Further, the jack 17 of the rotary drum 1b.
The rebar attachment may be attached to the tip of the rebar 28 and the rebar 28 may be arranged by the moving / assembling device 1. Further, in the moving / assembling apparatus 1, it is needless to say that the method of rotating the moving apparatus 8 and the rotary drum 1b can be changed in design by a known technique for the purpose.

[0014]

As described above, the apparatus for moving and assembling a formwork for a shield construction method according to the present invention is provided with a guide rail extending at least rearward of an existing formwork behind a shield machine.
And a cylinder body formed so as to be movable along a roll
And a moving device for moving the
A rotary drum provided on the cylinder body so as to be rotatable,
A carrying jack provided on the rotating drum for carrying the formwork.
And a moving / assembling device including:
Hollow with the guide rail installed on its outer peripheral surface
Shaft and the hollow shaft after the shield machine
Equipped with a shaft pedestal supported by one side and the carrying jack
The jack is connected to the rotary drum and can rotate together.
And a hollow of the hollow shaft.
The excavated earth and sand discharge device and pipes such as cables are stored in the
Since it is possible to dismantle, transport, and assemble the formwork for one element at a time, the work time is shortened and the work efficiency is improved, as well as drilling in the hollow part of the hollow shaft.
Contains earth and sand discharge devices and pipes such as cables
So the facilities in the congested tunnel were clean
To secure a large work space and improve work efficiency.
It has an excellent effect. In addition, it is convenient that the attachment of the detachable jack can be easily used for arranging the reinforcing bars by exchanging the attachments. Furthermore, since the tilt angle adjustment jack is provided and the jack reaction force platform can be swung freely with respect to the rotating drum , the angle of the detachable jack with respect to the mold can be changed, and the efficiency of disassembling and assembling the form can be improved. Improved.

[Brief description of drawings]

FIG. 1 is a side view of a moving / assembling device of the present invention.

2 is a partially enlarged side view of FIG.

3 is a right half fracture view of FIG. 1 as viewed in the direction of arrow D, and a left half fracture is a cross-sectional view taken along the line CC of FIG.

4 is a sectional view taken along the line BB in FIG. 1 and a sectional view taken along the line AA in FIG.

[Explanation of symbols]

1 moving / assembling device, 1a cylinder body, 1b rotating drum, 2 shield excavator, 3 hollow shaft, 4 shaft pedestal, 5 concrete lining, 6 wheels, 7
Guide rails, 8 moving devices, 14 tilting angle adjusting jacks, 15 jack reaction force stands, 16 form frames, 17 detachable jacks, 18 swinging jacks, 19 grip jacks, 26 earth removing devices, 28 reinforcing bars, a earth removing device.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyoshi Kurabayashi 1-7-1, Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. (56) Reference JP-A-2-88893 (JP, A) JP-A-2 -125099 (JP, A)

Claims (3)

(57) [Claims] 1. At least an existing mold behind the shield machine
Move along the guide rail that extends to the end of the frame.
The currently formed cylinder body and a moving device for moving the cylinder body.
And the cylinder body to be rotatable in the circumferential direction.
A rotary drum provided on the cylinder body and provided on the rotary drum
And a transport jack that transports the mold by moving it.
An assembling apparatus, which is inserted into the cylinder body and includes the guide.
Hollow shaft with rails installed on its outer peripheral surface and the hollow shaft
A shuff that supports the shaft behind the shield machine
The pedestal cradle and the transport jack are mounted on the rotary drum.
And a jack reaction force base that is connected and rotatable together.
Along with the removal of excavated earth and sand in the hollow part of the hollow shaft
A moving / assembling device for a formwork for the shield construction method , in which the equipment and pipes such as cables are stored . 2. A transport jack is used for demolding, transporting and assembling a mold.
Adjusting the angle of the detachable jack and the detachable jack
Rocking jack and grip jack that holds the mold.
The sea according to claim 1, characterized by comprising:
Form moving and assembling equipment for construction method. 3. The jack reaction force base and the rotary drum are tilted.
Pin connection so that the relative tilt angle can be adjusted with the turning angle adjustment jack
The shield according to claim 1, wherein the shield is provided.
Machine form moving / assembling device.