JP2707404B2 - A device for sliding a carriage in a tunnel tunnel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for sliding a carriage traveling in a shield tunnel with a circular cross section.

[0002]

2. Description of the Related Art Generally, the inside of a shield tunnel pit has a circular cross section, so that a carriage 2 for forming a flat running surface as shown in FIG.
Is installed at the bottom of the tunnel, on which two rails 3,3
Is generally laid, and the carrier 4 is run on the rail.

[0003] In such a conventional anti-inner transfer device using a rail truck using rails, a left-right rubbing method in which a part of the rail is partially double-tracked for the purpose of reducing the work of laying the rails and reducing the cost by reducing the material. In the case of small-diameter shields that use the left-right rubbing method that is not possible due to space limitations, the rubbing part is not installed in the pit, and the material is stocked in the pit or excavated in response to the feeding of the material. We are responding by excavation adjustment.

[0004]

The above-mentioned conventional internal transport method using a track truck is excellent in terms of the efficiency of the transport operation itself and the capacity of the battery which is the power source for the track, but the material is not used because the track is laid. Laying and removing work requires a lot of labor and time, and it is difficult to automate, etc. There was a problem that the drilling efficiency was greatly affected.

In order to solve such a problem, the present inventors have developed a trackless truck system in which the work of laying sleepers and rails is eliminated, and a carrier truck travels along a guide on the inner surface of the lining.

However, when a plurality of such bogies are run, a lateral roadbed having a necessary width is required if the lateral sliding method is adopted, so that a difference in height between the sliding portion and the single track traveling portion is required. As a result, there is a problem that the slope portion between them becomes long, which is very disadvantageous in the installation position and the installation work.

The present invention solves such a conventional problem,
An object of the present invention is to provide an apparatus for sliding a carriage inside a tunnel, which is suitable for a trackless carriage traveling on the inner surface of a lining.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, a feature of the present invention is to provide a gantry having a bogie traveling portion therein, and a plurality of vertically scalable telescopic frames for fixing the gantry in a tunnel. And a wheel that supports the gantry and is rotatable on the lower side surface in the tunnel, and a trolley provided on the gantry and stopped at the trolley traveling section of the gantry is moved up to the retreat position. The present invention resides in a transport trolley sliding device in a tunnel tunnel provided with a trolley elevating mechanism.

It is preferable that the gantry has a length equivalent to one carriage, and a plurality of gantry are continuously arranged in accordance with the number of trains of the trolley (claim 2).

[0010]

In the device of the present invention, the vehicle cannot be run at a predetermined installation position by setting the wheels relatively higher than the base of the gantry. Then, the entire device of the present invention is fixed in the tunnel by further extending the jack and bringing the upper end into contact with the inner surface of the ceiling of the tunnel. In this state, the transport trolley running section in the apparatus and the transport trolley running section in the tunnel are arranged continuously. Then, in a state in which the carriage is fed into the transportation carriage traveling section in the present apparatus and stopped, the carriage is raised to a predetermined height by the transportation carriage elevating means, so that another carriage can travel under the carriage. , The trolleys on the round trip can rub each other.

Further, by mounting the wheels on the inner surface of the tunnel, the entire device of the present invention can be moved to change or remove the installation position.

It is to be noted that the frame of the apparatus of the present invention has a length corresponding to one bogie, and can be formed to have a length corresponding to the number of vehicles in one bogie to be used by continuously arranging them according to the required number.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

In FIG. 1, reference numeral 10 denotes a circular lining of the shield tunnel. As shown in FIG. 3, the lining 10 has a structure in which arcuate segment pieces 11, 11,... Are assembled in a ring shape and segment rings are sequentially connected in the axial direction of the tunnel.

In the center of the bottom of the lining 10, a guide rail 20 is provided.
Are set in the direction of the tunnel axis, and the carriage 25 runs on the inner surface of the lining by being guided by the guide rails.

Numeral 30 denotes a transfer trolley sliding device according to the present invention. This device raises one bogie that is guided by the guide rail 20 to travel, and passes the bogie on the other side below the bogie, and a mount fixed to the inner surface of the tunnel lining And a bogie lifting mechanism for raising and lowering the bogie within the gantry.

The gantry has three columns 31 and 3 on the left and right.
1 ... are erected, and the upper and lower width direction beams 32 are provided between them.
a, 32b and the upper, lower, middle and lower longitudinal beams 33a, 33b,
33c, the outer shape is a rectangular frame. Upper and lower jacks 34a, 34b are provided at the upper and lower ends of the columns 31, 31,..., Respectively.
4b is provided between the lower ends.

On the outer sides of both sides of the gantry, traveling wheels 35 are supported in the front-rear direction by being supported by lower front-rear beams 33c. Each of the wheels 35 contacts the inner surface of the tunnel lining 10 to support the entire gantry by contracting the above-described lower jack 34b, and rises from the inner surface of the tunnel lining 10 by extending the jack 34b to raise the gantry. It has become. The upper jack 34a extends with the lower jack 34b so that the upper end abuts on the inner surface of the tunnel lining 10 to fix the gantry in the tunnel.

The carriage 25 can run on the bottom of the gantry, and a pair of runway plates 36, 36 are fixed in the front-rear direction on both ends of the lower width beam 32b. .

The bogie lifting mechanism comprises a vertically moving frame 41 in the gantry which moves up and down in a vertical direction, and a vertically moving mechanism 42 which moves this frame up and down. The lifting frame 41 has a rectangular shape as a whole, and wheel loading portions 43, 43,... As shown in FIG. 6, the wheel loading portion 43 is formed in a lattice shape with a plurality of bar-shaped members 43a directed in the width direction, and each bar-shaped member 43a is formed at the lowest position in the groove 36a formed in the track plate 36. The upper edge fits into the inside so as not to protrude.

As shown in FIGS. 4 and 6, the lifting frame 41 is integrally provided with rising portions 41a, 41a on both sides, and a lifting guide protrusion 44a is projected from an outer surface of the rising portion. An elevating guide 44b, which 44a is fixed to the inner surface of the gantry, is guided and vertically moved up and down. The guide rail 45 is fixed to the longitudinal beams 33b and 33c of the gantry. Therefore, the portion where the lifting frame 41 hits the guide rail 45 corresponds to the notch.

As shown in FIGS. 4 and 5, the lifting drive mechanism 42 has four lifting chains 46, 46,..., Which are respectively turned vertically, and a motor 47 for operating them simultaneously. I have. Each of the chains 46 is located outside the wheel loading portion 43 of the elevating frame 41 and is installed on both sides of the gantry, and is wrapped around upper and lower sprockets 48a and 48b. The upper and lower sprockets 48a are fixed to a common rotary shaft 49, respectively, and the shaft 49 is rotated by a motor 47.

The elevating frame 41 is fixed to each of the chains 46 installed and reciprocally driven up and down via the fixing bracket 46a, and the elevating frame 41 is moved up and down by driving the chain.

When the transfer trolley rubbing device 30 is installed in the tunnel, as shown in FIGS.
In accordance with the number of knittings, the same number of knittings are carried into a predetermined position, and the upper and lower jacks 34a and 34b are extended and immovably installed at positions where the distance between the bogies is adjusted in the front-back direction.
When carrying in, the jacks 34a, 34b are contracted, and the wheels 35, 35,.

In addition to the installation of the apparatus 30 in this way, before and after the apparatus, the sloped runner plates 50, 50 for providing a smooth slope between the runway plates 36, 36 and the inner surface of the tunnel are installed. The guide rail 20 on the inner surface 10 is removed by the length of the lifting frame 41 and the guide rail 51 adapted to the inclination is used by the length of the inclined running board 50.

In this embodiment, as shown in FIG. 9, each segment piece 11 forming the lining 10 has a bolt insertion recess 13 formed at a position along the joining edge on the inner peripheral surface side. The bolt insertion hole 14 extends from the recess 13 toward the joint surface.
Is open. In addition, this bolt insertion hole 14 is
3 is opened to the joint iron plate 15 installed so as to close the joint surface side.

Then, each of these segment pieces 11,
As shown in FIG. 10, the bolt insertion holes 14, 14 in the joint surfaces adjacent to each other on both the circumferential side and the axial center side of 11.
And the connecting bolt 1 is
6, and a nut 17 is screwed into the other concave portion 13,
The segments are assembled in a cylindrical shape by connecting and fixing the segments together by fastening them together.

One guide rail 20 is installed at the bottom of the lining 10 assembled in this manner, in the direction of the guide axis. The guide rail 20 is extended with rail members 20a, 20a having the same length as the width of the segment piece 11 with their end faces abutting against each other.

Each rail member 20a is a segment piece 1
As shown in FIG. 11, the rails 20a, 20a at the abutting positions of the sleepers 21, 21 are suspended between the sleepers 21, 21 made of H-shaped steel installed for each of the axial side joints 1, 1, 11. One sleeper 21 is connected to the two rail members 20a and 20a so that the butt end face is located at the center of the rail.
a.

The rail member 20a is provided with fixing bolts 22 projecting downward from the lower surfaces of both end portions thereof. The bolts 22 are passed through through holes formed in the sleepers 21 and fastened by nuts 23, thereby connecting the rail members 20a to the sleepers. 21. The fixing pins may be protruded and fixed through the through holes.

The sleeper 21 has support brackets 24, 2 on the lower surfaces of both ends.
4 are integrally protruded, and this is
The sleeper 21 is fixed to the inner bottom of the lining by being fitted into the recess 13 for inserting the connecting bolt. As shown in FIG. 10, the support fitting 24 includes a pair of projecting pieces 24a, 24a, which are bolted to each other by inserting the projecting pieces into the recesses 13, 13 of the segment pieces 11, 11, respectively. Iron plate 15,
15 is sandwiched.

The carriage 25 runs along the guide rails 20 installed as described above. Trolley 2
5 has wheels 26 on the bottom surface, and the wheels 26
Are rolled directly on the inner surface of the lining across both sides of the vehicle, and a pair of guide rollers 27, 27 are rotatably provided on the lower surface of the bogie 25 in the front and rear directions. , So that the bogie 25 is guided by the guide rails 20 so that it can run stably on the bottom center of the inner surface of the lining.

In the above-described embodiment, a case is described in which the transport trolley travels directly on the inner surface of the tunnel lining. However, in the present invention, the trolley travels on rails installed in the tunnel. In the case of the type, the same can be achieved by providing rails continuously arranged on the rails on the inner surface of the tunnel in the wheel loading portion of the gantry described above.

The bogie lifting mechanism supports the above-mentioned wheels for raising and lowering, and may also support parts other than the wheels for raising and lowering.

[0035]

As described above, the apparatus for sliding a carriage in a tunnel tunnel according to the present invention eliminates the need to increase the width of the traveling path due to the friction, because the carriage is raised and retracted. It is not necessary to increase the height difference between the misplaced part and the other part in the tunnel pit, so that the truck loaded with the heavy load runs less on the slope, energy loss is less, and economical operation is possible. it can.

Further, according to the present invention, since the entire apparatus can travel on wheels, the apparatus can be easily moved, and the apparatus can be easily loaded, installed, and removed in a short time. In terms of economy, the sliding device can be moved to the most suitable place for economical driving.

Further, in the present invention, by shaping the length of the gantry in accordance with the length of the transport trolley, it is possible to easily change the length of the rubbing portion in accordance with the number of knits of the trolley.

[Brief description of the drawings]

FIG. 1 is a cross-sectional plan view showing an overall schematic configuration of an embodiment of the present invention.

FIG. 2 is a central longitudinal side view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is an enlarged cross-sectional view of a lifting drive mechanism of the same.

FIG. 5 is a partially enlarged longitudinal sectional side view of a lifting drive mechanism of the above.

FIG. 6 is a partially enlarged plan view of the wheel loading unit of the above.

FIG. 7 is a plan view showing the inside of a tunnel pit for implementing the present invention.

FIG. 8 is a vertical sectional front view of the same.

FIG. 9 is a perspective view showing a part of the lining segment of the above.

FIG. 10 is an enlarged sectional view taken along line AA in FIG.

FIG. 11 is an enlarged sectional view taken along line BB in FIG. 9;

FIG. 12 is a longitudinal sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Lining 11 Segment piece 12 Segment ring 13 Concave part 14 Bolt insertion hole 15 Joint iron plate 16 Connection bolt 17, 23 Nut 20 Guide rail 20a Rail material 21 Sleeper 22 Bolt 24 Support metal fitting 24a Projection piece 25 Dolly 26 Wheel 27 Guide roller 30 Different friction Apparatus 31 Post 32a, 32b Width beam 33a, 33b, 33c Front / back beam 34a, 34b Jack 35 Running wheel 36 Runway plate 36a Depressed groove 41 Elevating frame 41a Rising part 42 Elevating drive mechanism 43 Wheel loading part 43a Rod material 44a Guide protruding piece 44b Elevating guide 45, 51 Guide rail 46 Elevating chain 47 Motor 48a, 48b Sprocket 49 Rotating shaft 50 Inclined running board

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yoichi Shioda 6-28-6 Minamioi, Shinagawa-ku, Tokyo Inside Tomoe Electric Industries, Ltd. (72) Yoshinori Katsuharu 6-28 Minamioi, Shinagawa-ku, Tokyo No.6 Inside Tomoe Electric Industries Co., Ltd. (56) References Hikaru 3-115200 (JP, U)

Claims (2)

(57) [Claims] 1. A gantry having a trolley running part therein, a plurality of vertically expandable and contractible jacks for fixing the gantry in a tunnel, and supporting the gantry, and freely rolling on a lower surface in the tunnel. And a carriage elevating mechanism provided on the gantry for raising the trolley stopped at the trolley traveling portion of the gantry to the retreat position. 2. The apparatus according to claim 1, wherein the gantry has a length equivalent to one carriage, and a plurality of gantry are continuously arranged in accordance with the number of trains of the trolley.