JP2926104B2 - Storage facilities for materials for shielding work - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a storage facility for materials for shielding work.

"Prior art" As is well known, the shield method involves excavating the ground with a cutter device provided at the front of a shield machine having an outer cylindrical skin plate, and forming a segment which is a cylindrical divided body inside the shield machine. Assembling, furthermore, by taking the reaction force at the front end of this segment and extending the shield jack inside the shield machine, the entire shield machine is advanced forward,
This is a method of forming a tunnel underground by repeating these steps.

In the shield method, it is necessary to transport materials such as segments from the ground to the shield machine.To transport various materials to the shield machine in the past, goliath cranes and ceiling The crane is used to directly mount the truck on the carrier truck that has been waiting at the bottom of the shaft, and the operator transports the carrier truck to the shield machine while pulling it with a battery truck. Means of unloading and transporting to an erector device have been used.

However, such a situation requires a large site near the shaft to store the segments in a piled state on the ground, which makes it difficult to construct in an urban area where it is difficult to secure sufficient site. Instead, inventory management of stored segments was time consuming, labor intensive and inefficient. In addition, in order to transport the unloaded segments to the bottom of the shaft using a Goliath crane, a large number of crane operators, auxiliary workers, and unloading workers are required, and it is difficult to speed up the work. Met.

For this reason, the present applicant has previously developed and provided a system for automatically transporting materials such as segments from the ground to the vicinity of the shield machine (Japanese Patent Application No. 1-1644). As shown in FIG. 4, a so-called automatic rack warehouse type material storage warehouse 1 is provided on the ground, a vertical transport machine 3 is provided in a shaft 2, and the warehouse 1 and the upper portions of the vertical transport machine 3 are provided. Tracks 5 and 5 for connecting the lower part of the vertical transport machine 3 and the shield machine 4 are provided so that the transport trolley 6 runs on the tracks 5 and 5 and the material 7 stocked in the warehouse 1 is provided. Transfer device 8 for loading pallet 6 on trolley 6, shield machine 4
Is provided with a transfer device 9 for lowering the material 7 conveyed to the vicinity of the trolley 6 from the cart 6, and selects any one of the materials 7 stocked in the warehouse 1 to select the transfer device 8
Is loaded on the trolley 6, and the trolley 6 is run and mounted on the vertical transport machine 3, and the material 7 is lowered by the vertical transport machine 3 together with the trolley 6 to the bottom of the shaft 2, and then the trolley 6 is placed in the tunnel by the shield machine. 4 and the material 7 is lowered from the carriage 6 by the transfer device 9. Then, inventory management of the material 7 in the warehouse 1, the cart 6
Central monitoring device 1
By controlling with 0, the operation relating to the storage and transport of the material 7 such as a segment is fully automated.

[Problem to be Solved by the Invention] According to the above-described system, materials such as segments are stored in the warehouse 1, so that the site area can be sufficiently saved as compared with the case where the materials are stored in the open state on the ground. In urban areas, it was sometimes difficult to secure even a site for installing the warehouse 1.

The present invention has been made in view of the above circumstances and has an object to provide a storage facility capable of realizing further space saving.

[Means for Solving the Problems] The present invention is to advance the shield machine from the bottom of the shaft, and to transport the material to the shield machine by moving the cart carrying the material from the bottom of the shaft toward the shield machine. A storage facility for temporarily storing materials such as segments to be sent from the ground to a vicinity of the shield machine, which is used in shield construction for excavating a tunnel by performing the tunnel, and stores the materials in the shaft. And a lifting device for raising and lowering the loading platform at the front side of the stock rack, and transferring the material between the loading platform and the stock rack to the loading platform of the lifting device, and And loading equipment at the bottom of the shaft to load material from the loading platform to the bogie. It is a feature.

Embodiment An embodiment of the storage facility according to the present invention will be described below with reference to FIGS. 1 to 3.

The storage equipment of this embodiment basically stores the materials temporarily in a warehouse and automatically conveys the stored materials to the vicinity of the shield machine, similarly to the system shown in FIG. However, stock racks 20 and 20 are provided in a shaft 2 in place of the material storage warehouse 1 conventionally provided on the ground.
The storage and removal of the materials 7 in and out of the shafts 0 and 20 are performed by an elevating device 30 provided in the shaft 2.

The lifting device 30 is configured to be guided by the side frames 31, 31 so that the loading platform 32 is moved up and down. The material 7 is transferred to the loading platform 32 between the loading platform 32 and the stock rack 20. 32 loading material 7 on the ground
At the bottom of the shaft 2 with the material 7
A transfer device (not shown) for loading the vehicle onto a trolley 40 (described later) is mounted. As the transfer device, various types can be adopted. For example, a type in which the material 7 is lifted by a telescopically extendable fork and moved in the horizontal direction can be considered. Reference numeral 33 denotes a wire for lifting the carrier 32; 34, a hoist for winding the wire 33 to raise and lower the carrier 32; and 35, a pulley.

The stock racks 20, 20 are provided with shelves capable of storing the material 7 in multiple stages (17 stages in the illustrated example), and the stock racks 20, 20 are as shown in FIG. The lifting device 30 is disposed on both sides of the hoistway so as to face each other. And in the example shown,
The two shelves facing each other across the hoistway are equivalent to one ring (5
The stock racks 20 and 20 are capable of storing segments for 17 rings.

In addition, a bogie 40 is provided so as to be able to run on the track 5 in the tunnel excavated from the bottom of the shaft 2 toward the shield machine 4, and any of the materials 7 stored in the stock racks 20, 20 is removed. It can be loaded on the carriage 40 by the lifting device 30. Then, when the material 7 is loaded on the trolley 40, similar to the one shown in FIG.
The carriage 40 runs by itself and transports the material 7 to the vicinity of the shield machine 4, where the material is lowered by a transfer device (not shown). In the example shown, 2
Although the two trucks 40, 40 are used in combination to transport one ring segment at a time by the two trucks 40, 40, this is not always the case.

In order to store the material 7 in the stock rack 20 in the storage facility configured as described above, first, the material 7 to be stored is loaded as appropriate on the trolley 50 that is allowed to move on the ground, and the trolley 50 is loaded. It is stopped at the parking standby position (the position immediately above the stock rack 20). Then, the loading platform 32 is stopped at the ground level, and the material 7 is loaded onto the loading platform 32 from the loading cart 50 by the transfer device. It should be noted that the cart 7 may be omitted and the material 7 may be directly loaded on the carrier 32. Then, the loading platform 32 is lowered to a predetermined shelf position and stopped, and the material 7 is stored in a predetermined shelf of the stock rack 20 by the transfer device.

Further, in order to take out the material 7 stored in the stock rack 20 and transport it to the shield machine 4, the loading platform 32 is stopped at the position of the shelf where the material 7 to be taken out is stored,
The transfer device takes out the material 7 from the shelf onto the loading platform 32, lowers the loading platform 32 to the bottom of the shaft 2, and places the material 7 on the bogie 40 which has previously been waiting at the standby position (the position immediately below the stock rack 20). After loading 7, the truck 40 may be driven toward the shield machine 4 by itself.

The above operations can be performed completely automatically by controlling the central monitoring device as in the case of the system shown in FIG. 4. Labor saving and efficiency can be realized.

According to the above-mentioned equipment, since the stock rack 20 is provided in the shaft 2, there is no need to provide a warehouse on the ground. Therefore, it is sufficient if there is a site corresponding to the cross-sectional area of the shaft 2 on the ground. Further space saving can be realized, and therefore, it is suitable for use in a case where the site area cannot be sufficiently secured as in an urban area. In particular, the depth of a tunnel provided in an urban area tends to be deep, and therefore the depth of the shaft 2 is also deep. Therefore, the height of the stock rack 20 provided in the shaft 2 can be made sufficiently large, and The stock rack 20 that can stock the material 7 of the shaft 2
It can be provided in.

Further, in the above-mentioned equipment, the material storage warehouse 1 provided on the ground in the conventional system and the elevating device 3 provided in the shaft 2 are integrated with each other. Equipment costs can be reduced as compared with the system. In addition, the transfer device mounted on the carrier 32 of the lifting device 3 not only transfers the material 7 between the stock rack 20 and the carrier 32, but also transfers the material 7 to the carrier 32 on the ground. Since the material 7 is to be loaded from the carrier 32 to the bogie 40 at the bottom of the shaft 2, all the transfer work can be performed only by the transfer device, and no other transfer device is required. Therefore, simplification of the configuration of the entire equipment and its control has been realized. In addition, in the conventional system, the bogie 6 travels on the ground.
Since the 40 only travels in the tunnel, there is an advantage that the trolley 40 and the material 7 can be prevented from being wet by covering the shaft 2 with rain.

In the above embodiment, stock racks are provided on both sides of the hoistway. However, if a desired stock amount can be secured on only one side of the hoistway, the stock racks may be provided only on one side. If there is sufficient cross-sectional area of the shaft, a plurality of rows of stock racks may be provided on one or both sides of the hoistway to store a larger amount of material. What is necessary is just to comprise so that it can be moved in and out of an arbitrary shelf by making it movable horizontally in the front side of a stock rack like a general automatic rack warehouse in the past.

In the above embodiment, the segments are stored, but it goes without saying that other materials can be stored without being limited to the segments.

[Effects of the Invention] As described in detail above, the present invention provides a stock rack in a shaft, and mounts a transfer device for loading and unloading materials to and from the stock rack on a carrier of an elevating device. Therefore, it is not necessary to secure a space for a warehouse on the ground, and therefore, it is suitable to be adopted when a site area cannot be sufficiently secured as in a shield construction in an urban area. Further, the equipment of the present invention has an advantage that the equipment cost can be reduced because the automatic rack warehouse and the elevating device in the conventional system are integrated. Moreover, in the equipment of the present invention, the transfer device mounted on the carrier of the lifting device
In addition to transferring the material between the stock rack and the loading platform, the transfer device is used to load the material on the loading platform on the ground and at the bottom of the shaft, from the loading platform to the bogie. There is an advantage that the entire transfer operation can be performed only by the loading device and no other transferring device is required, and thus the configuration of the entire equipment and its control can be sufficiently simplified.

[Brief description of the drawings]

1 to 3 show one embodiment of a storage facility according to the present invention. FIG. 1 is a side view, FIG. 2 is a front view, and FIG.
The figure is a plan view. FIG. 4 is a schematic diagram showing a conventional example of a material storage and transport system in shield construction. 2… shaft, 4… shield machine, 7… material, 20… stock rack, 30… lifting device, 32… loading platform, 40… trolley.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenji Watanabe 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Yoshiyuki Ohara 2-6-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction (56) References JP-A-1-290900 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) E21D 11/40

Claims (1)

(57) [Claims] 1. A shield for excavating a tunnel by carrying a material to a shield machine by moving a bogie loaded with materials from the bottom of the shaft toward the shield machine while advancing a shield machine from the bottom of the shaft. Used in construction, storage equipment for temporarily storing materials such as segments sent from the ground to the vicinity of the shield machine, while providing a stock rack capable of storing the materials in the shaft, At the front side of the stock rack, a lifting device for raising and lowering the loading platform is provided, and on the loading platform of the lifting device, the materials are transferred between the loading platform and the stock rack, and the materials are loaded on the loading platform on the ground and the bottom of the shaft. Characterized in that it is equipped with a transfer device for loading materials from a loading platform to a bogie. Storage facilities.