JPH1082298A - Vibration proofing subway tunnel construction device and construction method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to lay out a vibration proofing slab while excavating a tunnel and lining the tunnel at the same time. SOLUTION: A hoisting device 19 is transversely loaded on a beam 15 which bridges a shield machine 2 with rear trucks 13. The hoisting devoid 19 can lift up not only a panel 9 of a vibration proofing slab 7 but also a segment of a lining body 4. In the case when the panel 9 is lifted up, the panel 9 can be installed to an existing vibration proofing slab 7 while it is accurately being positioned therewith. On one hand, in the case when the segment 3 is lifted, the segment 3 is transferred to a hoist 32 in the front once, and further delivered to an erector 33 of the shield machine 2. In addition, a temporary rail 11 is preliminarily constructed on the top of the panel 9. The panels 9 re lined up on shoe seats 6, thereby forming one rail which runs continuously along a drift. A carrier device, which loads the panels 9 and the segment 3, is loaded on this rail.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for constructing an anti-vibration subway tunnel, in which an anti-vibration slab is laid at the bottom of a lumen via a shoe seat, and a method of constructing the anti-vibration subway tunnel. In particular, the present invention relates to an apparatus and a method for laying a vibration isolating slab in parallel with excavation and lining of a tunnel.

[0002]

2. Description of the Related Art Subway roads are subject to large vibrations and noises accompanying the passage of subway vehicles. Recently,
In order to alleviate this, it is being studied to construct a vibration-proof subway tunnel structure by arranging a shoe seat made of rubber or the like at the bottom of the tunnel lining body cavity and laying a vibration-proof slab on it.

[0003] The vibration-isolating slab is cast for each panel in a precast factory on the ground, and is conveyed into a tunnel from a shaft or the like communicating with the tunnel and is sequentially installed. And
A track is laid on the anti-vibration slab laid in this way via a filling material such as gravel.

Here, the size of one panel of the vibration isolating slab is usually about 3.5 meters in width and about 5 meters in total length.
And its weight is about 15 tons. Therefore, it is impossible to transport and install such a panel with only human power alone, but suitable mechanical means and reasonable work setup are required.

[0005] Further, a plurality of pores are formed in each panel in the longitudinal direction, and at the time of installation, the pores between adjacent panels are connected every six or so panels. Stress will be applied by inserting PC steel. Therefore, only an installation error of about ± 1 to 2 mm is allowed, and the mechanical means must be able to realize such working accuracy.

In order to realize such mechanical means, the present applicant has previously proposed an apparatus for transporting or installing an anti-vibration slab panel (Japanese Patent Application No. 8-61362). However, this device is a device dedicated to laying a vibration-isolated slab, and basically has the idea of laying a vibration-isolated slab as an independent process after completion of tunnel excavation and lining.

[0007] Therefore, by implementing a mechanical means on the premise that the vibration isolating slab is laid in parallel with the excavation and lining of the tunnel, the construction of this kind of tunnel should be solved in order to further improve the efficiency. A technical problem arises, and an object of the present invention is to solve the problem.

[0008]

DISCLOSURE OF THE INVENTION The present invention has been proposed to solve the above-mentioned problem, and is intended to construct an anti-vibration subway tunnel in which an anti-vibration slab is laid at the bottom of a lumen via a shoe seat. A panel that forms a vibration isolating slab and a means that lifts a segment that forms a lining body are mounted on a girder that bridges the shield machine and the rear bogie so as to freely traverse, and The lifting means can pitch, roll and yaw the lifted panel and horizontally move left and right, and further mount a hoist for lifting the segment in front of the lifting means in the girder so as to be able to traverse. On the other hand, another object of the present invention is to provide an apparatus for constructing an anti-vibration subway tunnel in which means for transporting panels and segments along temporary rails laid on the upper surface of an existing anti-vibration slab are provided.

Further, by forming the vibration-isolating slab by precast concrete for each panel and laying a temporary rail on the upper surface of the panel, the temporary rail is made continuous on the existing vibration-isolating slab. A panel or a segment of a tunnel lining body is loaded on the transporting means running on the temporary rail, and the transporting means is delivered to the face side end of the existing anti-vibration slab. The lifting means mounted on the entangled girder is arranged above the transporting means, and the panel or segment is lifted by the lifting means, and when the panel is lifted, the lifting means is connected to the existing one. By traversing the front of the face end of the anti-vibration slab, the suspended panel is hung down on a shoe seat provided at the bottom of the tunnel lumen in front of the face end of the vibration-isolating slab, thereby mounting the panel on the existing slab. Replenishment antivibration slab, whereas, when Tsuaga is a segment, was transferred to the segment to hoist mounted on in the Tsuaga means forward the digit,
Furthermore, the present invention provides a method of constructing a vibration-proof subway tunnel in which the hoist is traversed to the face side and the segment is transferred to an erector of a shield machine.

[0010]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described in detail with reference to FIG. In the figure, reference numeral 1 denotes a face, on which the shield machine 2 excavates. And
A lining 4 composed of segments 3, 3...

When the lining body 4 is newly provided for a predetermined distance, an invert concrete 5 is cast on the bottom of the lumen of the newly provided portion, and a shoe seat 6, 6,... Made of rubber or the like is placed on the invert concrete 5. Place at regular intervals. Then, an anti-vibration subway tunnel 8 is constructed by laying an anti-vibration slab 7 on the shoe seats 6, 6,.

Panels 9 constituting the vibration isolating slab 7
... is cast and molded at a precast concrete factory on the ground. In the body of the panel 9, a plurality of pores 10, 10... Are opened in the longitudinal direction, and a temporary rail 11 is previously laid on the upper surface along the longitudinal direction before being carried into the pit.

Therefore, when the panels 9, 9,... Are connected to form the vibration isolating slab 7, the temporary rails 11, 11 of the adjacent panels 9, 9 are continuous with each other to form one rail along the tunnel. Is done. Then, on the rail, the transfer device 12
Is reciprocated between a starting shaft (opened to the right in the drawing in FIG. 1) and a face end of the existing vibration-isolating slab 7 by a battery car (not shown). The loaded segments 3 or panels 9 are transported to the face-side end of the existing vibration-isolating slab 7.

At the end of the existing vibration isolating slab 7 on the face side,
On the left and right sides of the anti-vibration slab 7,
Are arranged. The rear bogies 13 and 13 are for storing pumps for shield excavation and the like, and generally should run on a dedicated temporary track. Rollers 14, 14 project obliquely outward and are pressed against the left and right side walls of the lining body 4, and are floating from the bottom of the lining body 4. The rear ends of the girders 15 are sandwiched between the left and right rear bogies 13 and 13 to support each other.

The girder 15 comprises the shield machine 2 and the rear bogie 1
3 and 13 and the front end is a shield machine 2
Is fixed to the rear frame 16. Therefore, when the shield machine 2 is propelled, the rear bogies 13 are also pulled forward by the shield machine 2 via the girder 15 and move forward.

A gate-type strut frame 17 is provided at an intermediate position between the spar 15 and the front and rear, and rollers 18, 18, 1
The girder 15 is supported by projecting and contacting the inner wall of the lining body 4 with projections 8 and 18.

A lifting device 19 is mounted on the girder 15. A rack 20 is disposed on the upper surface of the girder 15 along the front and rear longitudinal direction, and the pinion 21 of the lifting device 19 meshes with the rack 20. Then, the pinion 21 is rotated by a transverse motor 22. Thus, the lifting device 19 is formed so as to be able to traverse along the longitudinal direction of the girder 15.

Incidentally, as described above, the rack 20 and the pinion 21
The lifting device 19 is configured to be traversed in order to allow the vehicle to traverse without slipping even if the tunnel has a gradient.

The lifting device 19 is suspended below the girder 15, and a flat frame 23 is horizontally disposed at the lower end thereof. And the flat frame 23
Is formed so as to be movable up and down by a lifting jack 24 and horizontally movable by a horizontal moving jack 25 in a horizontal direction of the tunnel (a direction perpendicular to the paper surface in FIG. 1).

Further, the flat frame 23 is formed so as to be rotatable around a vertical center axis by a yawing jack 26. Further, at the four corners of the flat frame 23, there are provided telescopic jacks 27 which expand and contract respectively, and the lower end of the telescopic jack 27
Protrudes downward to form a shackle 28.

When the vibration isolating slab 7 is to be extended, the panels 9 are loaded on the transporting device 12 and transported to the face end of the existing vibration isolating slab 7, and the lifting device 19 To the upper position. Then, the flat frame 23 is lowered and the eye bolts 29, 29, 29, 2 standing at the four corners of the upper surface of the panel 9 which has been transported.
9 are connected to the shackles 28, 28, 28, 28.

In this way, the panel 9 is lifted by the lifting device 19. Then, the lifting device 19 is traversed slightly forward, and the lifted panel 9 is attached to the existing vibration isolating slab 7.
Is suspended on the shoe seats 6, 6,.
Thus, a new panel 9 is added to the vibration isolating slab 7.

When adding this new panel 9,
Although extremely strict positioning accuracy is required, the fine adjustment is performed by the traversing motor 22, the left / right horizontal moving jack 25, the yawing jack 26, and the telescopic jacks 27, 27, and 2.
Perform at 7 and 27. That is, the pitching operation, the rolling operation, and the vertical movement of the panel 9 are controlled by the telescopic jack 2.
7, 27, 27, 27, and the yawing operation is performed by the yawing jack 26. The positioning in the front-rear direction is performed by the traversing motor 22, and the positioning in the left-right horizontal direction is performed by the left-right horizontal moving jack 25.

In this manner, the panel 9 is accurately positioned, and the pores 10, 10... Of the whole vibration isolating slab 7 are continuous.
This facilitates the work of penetrating the PC steel into the continuous pores 10, 10,....

After extending the vibration isolating slab 7 in the cutting face direction by a predetermined amount in this way, the excavation is resumed. Then, the segments 3 are loaded on the transport device 12 at the starting shaft, and the transport device 12 is delivered in the cutting face direction, and is passed between the rear bogies 13, 13, etc., so as to be below the girder 15. Position. Then, the lifting device 19
Position.

In the center of the lower surface of the flat frame 23 of the lifting device 19, a segment lifting jig 30 is attached. Then, the segment lifting jig 30 is engaged with a grout hole or the like of the transported segment 3 and lifted. Then, the lifting device 19 is traversed in the face direction to pass through the strut frame 17, and
The segment 3 is temporarily hung on a portion 31 where the invert concrete 5 has not yet been cast and the bottom of the lining body 4 is exposed.

Next, the lifting device 19 is moved rearward, that is,
After retracting in the direction of the rear bogie 13, the hoist 32 mounted on the spar 15 in front of the lifting device 19 is traversed over the suspended segment 3. Thus, the segment 3 is transferred to the hoist 32 and the hoist 3
At 2, the material is further lifted to the face side. Then, the segment 3 is delivered to the erector 33 of the shield machine 2,
The erector 33 adds to the existing lining body 4 for lining.

The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified ones.

[0029]

As described above, the present invention not only transports the panel of the vibration isolating slab and installs it while positioning it accurately, but also transports the segment of the tunnel lining body, It can be handed over to the Elekta of the shield machine. Therefore, the vibration isolating slab can be laid in parallel with the excavation and lining of the tunnel.

By laying temporary rails on the upper surface of the panel in advance, it is no longer necessary to lay temporary rails inside the tunnel. Thus, the anti-vibration subway tunnel can be constructed extremely efficiently.

[Brief description of the drawings]

FIG. 1 is a side sectional explanatory view showing an embodiment of the present invention.

FIG. 2 is an explanatory sectional view taken along line AA of FIG. 1;

FIG. 3 is a sectional explanatory view taken along the line BB of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Face 2 Shield machine 3 Segment 4 Lining body 5 Invert concrete 6 Shutsuza 7 Vibration-proof slab 8 Vibration-proof subway tunnel 9 Panel 10 Pores 11 Temporary rail 12 Conveying device 13 Rear trolley 15 Girder 19 Lifting device 20 Rack 21 Pinion Reference Signs List 22 traversing motor 23 flat frame 24 lifting jack 25 left-right horizontal moving jack 26 yawing jack 27 telescopic jack 28 shackle 29 eyebolt 30 segment lifting jig 32 hoist 33 elector

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tatsuya Okamoto 2-1, Tsukudo-cho, Shinjuku-ku, Tokyo Kumagaya Gumi Tokyo head office

Claims (2)

[Claims] 1. An apparatus for constructing an anti-vibration subway tunnel in which an anti-vibration slab is laid at the bottom of a lumen via a shoe seat. A means for lifting a panel constituting a slab and a segment for constituting a lining body is mounted so as to be able to traverse, and the lifting means is capable of pitching, rolling, yawing, and horizontally moving the suspended panel horizontally. Further, a hoist for lifting the segment is mounted on the girder in front of the lifting means so as to be able to traverse, and on the other hand, the panel and the segment are transported along the temporary rail laid on the upper surface of the existing vibration isolating slab. An apparatus for constructing an anti-vibration subway tunnel, characterized in that means for performing such operations are provided. 2. A vibration isolating slab is formed of precast concrete for each panel, and a temporary rail is laid on an upper surface of the panel, so that the temporary rail is continued on the existing vibration isolating slab. A panel or a segment of a tunnel lining body is loaded on the transporting means running on the temporary rail, and the transporting means is delivered to the face side end of the existing anti-vibration slab. The lifting means mounted on the entangled girder is arranged above the transporting means, and the panel or segment is lifted by the lifting means, and when the panel is lifted, the lifting means is connected to the existing one. The panel is traversed forward of the face end of the vibration-isolating slab, and the lifted panel is hung down on a shoe seat provided at the bottom of the tunnel lumen in front of the face end of the vibration-isolating slab. Shake When the segment is lifted while being added to the slab, the segment is transferred to a hoist mounted in front of the lifting means in the spar, and the hoist is traversed to the face side, and the segment is moved. A method of constructing a vibration-proof subway tunnel, wherein the tunnel is delivered to an erecta of a shield machine.