JPH089280Y2 - Segment transfer device - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The disclosed technology is used in the shield excavation method used when constructing tunnels or underdrains in the ground.
It belongs to the technical field of the structure of the transport device for the segment lining the inside of the ground.

[0002]

2. Description of the Related Art As is well known, social institutions have become extremely complicated and expanded in a wide variety of ways. In particular, transportation means, lifelines such as electricity and gas, and information transmission networks have become nationwide networks. As Japan becomes increasingly overcrowded and these mechanisms are concentrated in Japan, where there is a small land area, therefore, not only new construction but also expansion of conventional mechanisms are required to perform various constructions on the ground itself. While avoiding interference with conventional structures in the ground,
In addition to safety, there is a strong demand for doing so while reducing the economic burden.

[0003] Various types of civil engineering techniques have been researched and put into practical use in order to avoid collapse of the ground, leak of groundwater, etc. in new construction or repair work of tunnels, underdrains and various lifelines. However, since various mechanical devices must be carried into a narrow excavation tunnel and the required work must be performed efficiently as designed and within a limited construction period, momentum and manual work is required. There is a neck.

Moreover, it is indispensable that the manual labor of the kind must be safety first, and since it is necessary to prevent the pollution of the surrounding environment and the pollution problem, it is combined with the labor shortage (manpower shortage). There is a strong demand for improved operating efficiency.

For example, when constructing a tunnel or an underdrain by the muddy water shield method, excavation of the ground at the face of the face is carried out by an excavation device, but for the support work such as primary concrete winding on the inner surface of the ground of the excavation tunnel. A technique is used in which a predetermined number of piece block-shaped segments 1 made of metal such as iron or concrete as shown in 9 are assembled and lined in a circular cross section, as shown in FIG.
After excavating the face 4 of the ground 3 by the shield excavation device 2, the piece block-shaped segment 1 is carried into the inner surface of the ground 3 and assembled into a lining shape to form a cylindrical segment 1 '. As described above, in order to convey the piece block-shaped segment 1 loaded from the ground through the shaft in the narrow excavation tunnel to the excavation tunnel behind the face, the segment conveying device 5 is used, but 6 and 7 are mounted on the guide rail 6 provided by the above, and are made movable through wheels 8, 8 ..., From the hoist 9 mounted on the carrier 7 to a chain, or Reel 1 by unwinding wire or rope 10.
1 and hangs it by connecting its tip to a joint 15 of a holder bracket 14 assembled via a pin 13 to a hook 12 preliminarily attached to a piece block-shaped segment 1, and a worker manually pushes the carriage 7. It was designed to be pushed in and carried in by a ceremony or the like.

[0006]

Although the hook 12 attached to the piece block-shaped segment 1 is arranged so as to come to the center of gravity of the piece block, it is attached to the center of gravity of the piece block-shaped segment 1 due to its structure. In some cases, as shown in FIGS. 6 and 7, the chain, wire, or rope 10 does not always balance the suspended posture as designed, and the guide rail 6 is laid. The state is not a geometric linear liner shape, and there are irregularities and bends, so there are many cases where shaking vibration occurs during conveyance, and since it is a manual work etc., it depends on the magnitude of the pushing force applied. Posture change
In addition, acceleration occurs when starting and stopping, and the piece block-shaped segment 1 is also usually quite large in size and weight, and sometimes several hundreds of kilograms to over 1 ton. Occurs, and at that time shaking vibration is unavoidable, which not only makes it difficult to work, but also because the mechanical equipment for various construction is complicatedly set in the narrow excavation tunnel, There is a drawback that interference with these mechanical devices may occur, there is a disadvantage that momentum and safety decrease, and there is a negative point that construction efficiency also deteriorates.

In order to deal with this, it is theoretically possible to install a number of control devices on the carrier vehicle or a battery type drive device to control the speed, but the structure becomes complicated. However, there is a drawback that the cost is high, and maintenance is also troublesome.

[0008]

[Object of the Invention] The purpose of the invention of this application is to excavate a narrow segment used for shield excavation, which is extremely effectively used in new construction and renovation work of various tunnels, underdrains, lifelines, etc. based on the above-mentioned conventional techniques. The technical problem to be solved is to solve the problem of transportation in the mine, and the vibration of vibration in the transportation process of the installed segment with the balance posture set as much as possible is suppressed to avoid the interference with peripheral equipment. The object of the present invention is to provide an excellent segment transfer device which can be transferred smoothly in a fixed posture and can be transferred safely, which is beneficial to the field of use of transfer technology in the construction industry.

[0009]

[Means and Actions for Solving the Problems] In order to solve the above-mentioned problems, the structure of the invention of the present application, which has the above-mentioned purpose as the gist of the above-mentioned utility model registration request, has a tunnel or an underdrain. Etc., new construction, or, when repairing, the inner surface of the ground of the excavation tunnel from the face using the shield excavation method, or to line the ring-shaped segment inside the primary rolled concrete against the ground, The carrier is set on the guide rail provided in the excavation tunnel, and the chain, wire, or rope is paid out from the hoist equipped on the carrier, and the center of gravity of the unit segment that has been fed down by the reel and carried in via the reel is placed. A pan tag with a multi-joint link that is connected to a provided hook by a joint and hangs the segment in a hanging state, and also extends from the transport carriage. When the carrier is pushed along the guide rails, the segments sway due to unevenness or bending, or acceleration at the time of rising or stopping, in order to push the carriage along the guide rails. Even if vibration is generated, it is restrained by the pantograph of the multi-joint link and does not vibrate, and it is reliably transported along the guide rail, safe and does not interfere with peripheral equipment,
Further, technical measures are taken so that there is no problem in durability of the segment transfer device.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment of the invention of this application will be described below with reference to FIGS. 1 to 5.

It should be noted that the same mode parts as those in the drawings starting from FIG.

The illustrated embodiment is a mode in which a shield excavation method is used when constructing a tunnel or an underdrain in the ground 3, and in the embodiment shown in FIGS. 1 and 2, reference numeral 16 is a segment transfer device of the invention of this application. That is, the piece block-shaped unit segment 1 is carried into the excavation tunnel after excavating the face 4 of the ground 3 by the shield excavation device 2 shown in FIG. The inner surface of the ground, or the inner side of the primary rolled concrete is to be lined in the same manner as the conventional mode,
A manually guided carrier 7'is mounted on the guide rail 6 extending backwards via wheels 8, 8 ..., From a hoist 9 mounted on the carrier 7'to a chain or a wire,
Alternatively, a hanging rope 10 such as a rope is extended via a reel 11, and a tip thereof is connected to a holder bracket 14 attached via a pin 13 to a hook 12 provided in advance on the piece block-shaped segment 1 so that the hanging bracket 10 can be raised and lowered. The configuration is the same as the conventional mode shown in FIGS.

Therefore, in the invention of this application, a pair of multi-joint link pantographs 17, 17 extend from the carriage 7'to both side surfaces thereof flexibly and freely via pins 20, 20 ,. The lower end of the holder bracket 14
Is pinned to the pin.

Therefore, as shown in FIG. 2, each multi-joint link pantograph 17 is provided along parallel planes in the vertical direction, and swings in the front-rear and left-right directions in the same manner as a general ordinary multi-joint link pantograph. The vibration is restrained.

Therefore, while the vehicle is traveling, it does not interfere with other transportation devices provided in the narrow excavation tunnel, and there is no risk of an unexpected accident. It will be done.

In the above-mentioned structure, when the piece block-shaped segment 1 is set in the ground after excavating a face or inside the primary rolled concrete in a ring shape, the piece block-shaped segment 1 is fixed as much as possible. A chain 12 fed from a hoist 9 or a tip of a hanging rope 10 such as a rope is connected to a holder bracket 14 provided via a pin 13 to a hook 12 provided in advance.

Of course, at this stage, the multi-joint link pantograph 17 is provided between the holder bracket 14 and the carriage 7 '.
Is provided.

The piece block-shaped segment 1
The carriage 7 ′ is pushed by hand in a posture of being suspended, and the carriage 7 ′ is carried along the guide rail 6 into the shield excavator 2.

During this time, periodic and non-periodic vibrations are applied to the carrier vehicle 7'due to the unevenness and bending of the guide rail 6 in the longitudinal direction, and inertial force and acceleration are generated when starting and stopping. Regarding the shaking vibration in the case, the multi-joint link pantograph 17 bends and stretches in the vertical direction, and the shaking vibration in the front-rear and left-right directions is restrained. Therefore, the segment 1 is transported while being maintained in the initially suspended posture on the transport carriage 7 ′. The operator does not have to take any precautions or work to avoid the interference with the surrounding equipment and devices by simply pushing the carrier 7'and pushing the segment 1 at the predetermined position.
The lining work for the segment 1'is carried in by carrying in and returning it by the operation opposite to the initial setting action.

Of course, since the work is merely a pushing work, the work efficiency is good and the work can be performed safely.

Further, as in the embodiment shown in FIGS. 3 and 4, a dashpot 18 as a damper and a vibration absorbing spring 19 may be provided in the multi-joint link 17, or the composite joint 17 may be replaced by a composite spring as in the embodiment shown in FIG. It is also possible to further improve the vibration damping effect by providing coil springs 19 ', 19' in the longitudinal direction of the joint link 17.

Of course, the embodiment of the invention of this application is not limited to the above-mentioned embodiments. For example, the pantograph is provided along the upper and lower surfaces which are parallel to each other in the front-rear direction and the left-right direction downward. Various modes such as the above can be adopted.

Further, in terms of design modification, a self-propelled drive device can be provided on the carrier vehicle, and a cushion spring can be provided on the carrier vehicle.

Since the construction to be applied can be applied to a construction method other than the shield excavation method, not only the piece block-shaped segment but also the ring-shaped semi-finished product can be used. Of course, you can do it.

[0025]

As described above, according to the invention of this application, basically when the segment is lined on the inner surface of the ground or the inner side of the primary rolled concrete in the tunnel for excavating the face using the shield excavation method. In a shielded carrier for carrying in a large size and heavy weight of the segment, a chain or a wire or a hanging rope such as a rope is connected to a holder bracket connected to a hook provided in advance for the segment to hang the segment. In a device for lowering and carrying by a carrier cart, the pantograph of the multi-joint link is provided along the planes parallel to each other by being provided on the holder bracket from the carrier cart, thereby fitting the pin with the pantograph 7 of the multi-joint link. Due to friction and rigidity in the parts, bending and unevenness of the guide rail during transportation, and further inertial force and acceleration at rising Vibration and vibration in the front-rear and left-right directions are suppressed or restrained. Therefore, the balance of the segment is lost during transportation, and it interferes with various equipment machinery set in a narrow excavation tunnel. Therefore, there is an excellent effect that the carrying-in work is surely performed and the construction work is not affected at all.

Further, as far as the work is carried out safely, there is no fear of construction delay, and as a result, the work efficiency is improved and the cost can be reduced.

Further, since lateral vibrations such as front, rear, left and right are restrained, the width of the guide rails does not need to be large as a result, and the transportation of a segment of the full width in a narrow excavation tunnel. This also has the advantage that the shield excavation work itself can be performed easily.

Since the multi-joint link pantograph is extended on the carrier vehicle, the rigidity of the carrier vehicle itself can be reinforced and the durability of the apparatus can be improved.

Further, since the multi-joint link pantograph itself is not a complicated structure, maintenance and maintenance are unnecessary,
There is also an advantage that the life can be sufficiently lengthened.

Further, by interposing a vibration damper or a vibration absorbing spring in the multi-joint link, it is possible to prevent adverse effects due to vibrations of a hoist or the like mounted on the carriage, and to maintain the construction.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the invention of this application.

FIG. 2 is a front view of the same.

FIG. 3 is a side view of another embodiment.

FIG. 4 is a front view of the same.

FIG. 5 is a side view of another embodiment.

FIG. 6 is a side view of a segment transfer device according to the prior art.

FIG. 7 is a front view of the same.

FIG. 8 is a schematic partial vertical side view of the shield excavation.

FIG. 9 is a perspective view of a die block-shaped segment.

[Explanation of symbols]

 6 Guide rail 7'Transport truck 9 Hoist 10 Suspended rope 1 Segment 12 Hook 14 Holder bracket 16 Segment transport device 17 Multi-joint link pantograph

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Endo 14 Arakicho Shinjuku-ku, Tokyo Inside Shinryo Heavy Machinery Co., Ltd. (72) Inventor Hiroshi Miyanishi 14 Arakimachi Shinjuku-ku Tokyo Shinryo Heavy Machinery Co., Ltd. 56) References Japanese Unexamined Patent Publication No. Sho 49-83228 (JP, A) Jikkaihei 1-119500 (JP, U)

Claims (2)

[Scope of utility model registration request] 1. A segment lower end of the hanging down ropes from the hoist hoist is provided in a conveyance carriage traveling along a guide rail is attached to the holder bracket to engage the hooks of cell <br/> segment conveying In the apparatus, a pantograph having a multi-joint link is arranged between the carrier truck and the holder bracket. Wherein said pantograph <br/> phase opposite vertical surfaces that are respectively arranged along both utility model registration Claims paragraph 1, wherein the traveling direction of the conveyance carriage Segment transport equipment.