JP2010013881A - Construction moving method using jack devices, and construction moving work system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique of executing a construction moving work using jack devices, which is improved in working efficiency and safety of the work. <P>SOLUTION: There is provided a construction moving method using the jack devices, which is carried out by supporting a construction at multiple points with the plurality of jack devices set in a plurality of working areas, and the jack devices are controlled with a concentrated control device, to thereby move the construction. According to the method, a headquarter operator who operates the concentrated control device obtains operating information of the jack devices from the concentrated control device, and visually checks the operating information of the jack devices. Further area operators in the respective working areas visually check the operating information of the jack devices, and operate the respective jack devices, based on an instruction from the headquarter operator and the jack device information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention provides a structure using a jack device that supports a structure at multiple points by a plurality of jack devices installed in a plurality of work areas, and moves the structure by controlling the plurality of jack devices by a central control device. The present invention relates to a moving construction method and a structure moving construction system.

There are various jack works for moving a structure by supporting the structure at multiple points by a plurality of jack devices installed in a plurality of work areas and controlling the jack device by a centralized control device. As an example of such jack work, there is a delivery construction method performed at the time of cross-linking.
The sending-out construction method is a construction method that enables bridging at a site where a support can not be temporarily installed under the bridge, such as when a deep gorge or road traffic or ship traffic under the bridge cannot be blocked.
In this delivery construction method, a rail is laid on a construction yard on the horizontal extension line at the upper end of the pier, which is the erection position, a bridge girder is formed on a carriage that can travel this rail, and this bridge girder is sequentially sent to the pier. It is to do.

When the bridge is bridged by the delivery construction method, particularly in the case of a bridge of a long bridge supported by a plurality of bridge piers, the bridge girder is supported at multiple points by a jack device disposed on the plurality of bridge piers during movement. In this case, it is necessary to adjust the support force so that the reaction force of the bridge girder at each fulcrum is uniform between the fulcrums. For this reason, a supporting force at each fulcrum is detected, and this is input to a control computer and automatically and centrally managed (see, for example, Patent Document 1).
Japanese Patent No. 3787314

As described above, load control at each fulcrum is performed automatically, and is generally centrally managed by the administrative headquarters.
However, even if automatic control is performed, the work area of each pier top end where the jack device serving as each fulcrum is placed is not completely unmanned and fully automatic control is performed, but work on each pier top end is not performed. Workers are placed in the area, and workers receive confirmation from the administrative headquarters of work start confirmation, work instructions, etc., and sometimes it is necessary to switch from automatic control to manual control to perform various work.

As described above, in the moving work of the structure using the jack device exemplified in the delivery construction method, the worker in each work area works in response to the instruction from the management headquarters that performs the centralized management. Is done.
In this case, the management headquarters that gives work instructions knows the situation of the jack device at each fulcrum, and issues the most appropriate instruction to the worker in each work area according to this situation.
However, workers in each work area who are not aware of the overall situation need to thoroughly check and fully understand the instructions based only on the instruction information from the administrative headquarters in order to properly perform the necessary work. Yes, it takes a lot of time and effort.
For this reason, the time required for confirmation and understanding of such work instructions has a problem that the effect on the overall construction period is large and the work efficiency is deteriorated in the actual construction site where the construction period is strictly controlled. there were.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a technique for improving work efficiency and improving work safety in a structure moving work using a jack device.

  In the multi-point support work with jack devices, the load support at each fulcrum is closely related to the support load at each other fulcrum because a large number of jack devices support multiple points in a wide area. The stroke of the fulcrum jack device needs to be controlled in relation to each other. Due to this particularity, in the construction moving work using the jack device, it is necessary to distribute the load and stroke information at each fulcrum to the management headquarters for centralized management. Therefore, the information at each fulcrum is displayed on the monitor, for example, at the management headquarters, and various contacts are made to the workers at each fulcrum based on this information.

  However, the workers at each fulcrum have no means of obtaining information or work information about jacks at other fulcrums, and the contact from the administrative headquarters is the only information acquisition means. There is only a way to do it. Therefore, for example, if the sending work is not progressing due to a trouble in a work area in the sending construction method, the worker of the fulcrum where the trouble occurs can grasp the situation, but why is it in other fulcrum? The situation cannot be grasped whether the construction does not proceed, and the situation is simply watched over, resulting in a waste of work. In addition, even if there is a work instruction from the administrative headquarters, the fulcrum worker in which trouble has occurred does not grasp the overall situation as described above, so it takes time to understand the work content. End up.

As a result of earnestly examining how to avoid the occurrence of such waste, the inventor has obtained information on the jack at each fulcrum and information on the work status that the management headquarters have grasped at the same time. I got the knowledge that I should be able to grasp it. In other words, each fulcrum worker shares the information held by the administrative headquarters so that each fulcrum worker can grasp not only the situation at his fulcrum but also the situation at other fulcrums. I thought it would be possible to omit contact from the administrative headquarters and to understand the contents of the instructions from the administrative headquarters smoothly, improving work efficiency.
The present invention is based on such knowledge, and takes the conventional information central management method in the structure moving construction using the jack device, and redistributes this information to each fulcrum worker while centrally managing the information. This is based on the idea and specifically has the following configuration.

(1) In the structure moving construction method using the jack device according to the present invention, the structure is supported at multiple points by a plurality of jack devices installed in a plurality of work areas, and the plurality of jack devices are controlled by a centralized control device. In the structure moving construction method using the jack device that moves the structure, the operation information of the plurality of jack devices is acquired from the central control device, and the operation information of the plurality of jack devices is collected in the concentration The headquarters operator who operates the control device can visually confirm and the operation information of the plurality of jack devices can be visually confirmed by each worker in each work area. And each operator operates the jack device based on operation information of the plurality of jack devices.
The movement of the structure includes vertical movement and horizontal movement.

(2) Further, in the device described in (1) above, the jack information includes jack load information and jack stroke information.

(3) In the above (1) or (2), the jack information includes information on a work situation such as a situation where work preparation is completed, a situation where preparation is not completed, and an emergency stop situation. It is characterized by this.

(4) In addition, in the structure moving construction described in any of (1) to (3) above, a jack device is installed at the upper ends of a plurality of bridge piers, and the bridge girder is connected to the jack from a delivery cart installed in a construction yard. The present invention is characterized in that it is a delivery erection method in which it is sequentially fed to the apparatus and crosslinked.

(5) A structure moving construction system using a jack device according to the present invention supports a structure at multiple points by a plurality of jack devices installed in a plurality of work areas, and controls the plurality of jack devices by a central control device. In a structure moving construction system using a jack device for moving the structure, a first display device for acquiring information from the central control device and displaying the plurality of jack operation information, and each work And a second display device arranged in an area and connected to the first display device to display the jack information.

(6) Further, in the above (5), the jack information includes jack load information and jack stroke information.

(7) In addition, in the above described (5) or (6), the jack information includes information on a work situation such as a situation where work preparation is completed, a situation where preparation is not completed, and an emergency stop situation. It is characterized by this.

  In the present invention, since information can be redistributed to each fulcrum and shared, the workers at each fulcrum can always grasp the status of the entire construction, not only the work instructions from the management headquarters become smooth, Work planning based on the overall situation is possible at each fulcrum, making the entire construction extremely efficient. In addition, since it is possible to perform work based on the overall situation at each fulcrum, appropriate work can be performed, which leads to work safety.

In the present embodiment, a delivery construction method will be described as an example of a structure moving work using a jack device.
FIG. 1 is an explanatory diagram for explaining the outline of the delivery erection method, FIG. 2 is an explanatory diagram for explaining the outline of an apparatus used for the delivery erection method, and FIG. , “PC”) is a diagram showing an example of a display screen.
First, we will outline the equipment used in the delivery construction method.

A rear carriage 5 and a front carriage 7 are arranged in the construction yard 3 on the horizontal extension line of the upper end of the plurality of piers 1 (see FIG. 1). In addition, a fulcrum jack device 11 is disposed at the upper end portion of each pier 1 on which the bridge girder 9 is erected, which is sequentially sent forward while supporting the erected bridge girder 9 (see FIG. 2).
The rear carriage 5 is a propulsion device that pushes the bridge girder 9 from the yard side toward the pier 1 side, and the front carriage 7 is in front of the rear carriage 5 and supports the bridge girder 9. Further, the fulcrum jack device 11 means a jack device serving as a fulcrum for supporting the bridge girder, and has a crawler, and feeds forward while supporting the bridge girder 9 with the crawler. In the fulcrum jack device 11, the bridge girder 9 is supported by vertical jacks arranged at two places in the width direction.

The construction yard 3 is provided with a management headquarters 13 for managing the entire construction. The management headquarters 13 is provided with a work conductor 14 and a control device 15 for controlling the fulcrum jack device 11 and various controls and information display. The headquarters PC 17 is installed.
On the other hand, the upper end portion of each pier 1 is a work area 19 where an operator 21 is arranged and a hydraulic control unit 23 for operating the fulcrum jack device 11 and a fulcrum PC 25 are installed in addition to the fulcrum jack device 11. ing.
Each hydraulic control unit 23 is connected by a measurement / control LAN cable 27, is driven by a control signal from the control device 15 installed in the management headquarter 13, and supplies oil to the vertical jack at a predetermined pressure.
The hydraulic control unit 23 is driven by a motor installed inside the unit and supplies oil of a predetermined pressure to the vertical jack. The axial force (load) of the vertical jack is detected by a digital pressure gauge, and the detected data is transmitted to the management headquarters 13 through the control system network.

In the management head office 13, the data transmitted through the control system network is transmitted from the control device 15 to the head office PC 17 and displayed on the display screen 17a of the head office PC 17 (see FIG. 3). The head office PC 17 and the fulcrum PC 25 are connected by an information network, and the same information as the display screen 17 a of the head office PC 17 can be constantly confirmed on the display screen 25 a of the fulcrum PC 25.
Hereinafter, the display contents of the display screen 25a of the head office PC 17 and the fulcrum PC 25 will be described with reference to FIG.

In the image display section 31 at the upper part of the display screens 17a and 25a, the entire delivery construction site is schematically shown, and the construction status of the bridge girder 9 is sequentially updated and displayed as the delivery construction works.
Below the image display unit 31, there is provided a jack load information display unit 33 for displaying the operation status of the vertical jacks installed in the rear cart 5, the front cart 7, and the fulcrum jack devices of the respective fulcrums AF.
The jack load information display unit 33 is configured to display the jack load information display unit by dividing it into areas where the respective vertical jacks are arranged. For example, when the display content about the fulcrum B is described as an example, the loads of two vertical jacks (G1, G2) are displayed by a bar graph. Below the bar graph, an actual load value, a design value, and a% value of the actual value with respect to the design value are displayed as numerical values. Further below that, the operation status of the jack, that is, the upward movement (UP) and the downward movement (DOWN) are displayed. Below that, manual control or automatic control is displayed as a control selection.

Below the jack information display section, a work status display section 35 is provided. A situation where work preparation is completed (displayed as “ready”) and a situation where preparation is not completed (displayed as “working”). Various work situations such as an emergency stop situation (displayed as “emergency stop”) are displayed.
A jack stroke information display unit 37 is provided below the work status display unit 35 so that the stroke of the vertical jack of each fulcrum jack device 11 is displayed numerically.

The operation of the present embodiment configured as described above will be described.
As shown in FIG. 1, the bridge girder 9 to be fed is placed on the rail of the construction yard 3 via a delivery carriage, and a hand spreader 39 is connected to the tip of the bridge girder 9. Then, by driving a horizontal jack (not shown), a propulsive force is applied to the rear carriage 5 and the rear carriage 5 and the front carriage 7 are advanced to feed the bridge girder 9 forward, and the bridge girder 9 is sequentially connected as the feeding proceeds. The bridge girder 9 that has been fed out is supported by the fulcrum jack device 11 at the upper end of the pier 1.

The front carriage 7, the rear carriage 5, and each fulcrum jack device 11 are subjected to the load of the hand spreader 39 and the bridge girder 9. ing. Then, the load acting on each vertical jack is detected by the pressure sensor, and is sent as control information to the control device 15 of the management headquarters 13 through the network of the control system. When the load balance is lost, automatic control is performed to correct this. The stroke of each vertical jack is detected by a distance sensor, and this information is also transmitted to the management headquarters 13.
In the headquarters PC 17, the load information acting on each vertical jack transmitted to the control device 15 and the information on the stroke of the jack are acquired and displayed on the display screen 17a. The same content as that displayed on the head office PC 17 is displayed on the display screen 25a of each fulcrum PC 25 connected to the head office PC 17 via the information network.
For this reason, the operator 21 at the upper end of each pier 1 is selected from the start to the end of the construction, jack load, stroke, work status of the front trolley 7, the rear trolley 5 and the upper end of each pier 1 in the construction yard 3. It is possible to visually check the information such as the control type.
Thus, the following effects can be obtained by checking the jack information not only in the own work area 19 but also in other work areas 19.

(1) During the construction, the worker 21 in each work area 19 can grasp the work status of the other work areas 19. If a certain work area 19 is undergoing some kind of preparatory work, the situation can be grasped on the display screen 25a of the fulcrum PC 25 from the work area 19 far away. By doing so, you can understand at a glance why the entire construction does not proceed, so there is no stress due to lack of information. In addition, since the status of the entire construction can be grasped, a work plan in its own work area 19 can be made, and work can be carried smoothly.

(2) Further, during construction, automatic control is not always performed, and depending on the situation, it may be necessary to control only a certain work area 19 by switching to manual control. For example, when the jack at the fulcrum B needs to be lowered because the load at the fulcrum B is too large, the jack at the fulcrum B may already be in the lowest position and cannot be lowered any further. In such a case, the load balance can be achieved by raising the jacks at the fulcrums A and C with the fulcrum B in between. In that case, the management headquarters 13 issues an instruction to raise the jack to the workers 21 at the fulcrums A and C, and each worker 21 controls the jack. In such a case, if the workers 21 of the fulcrums A and C can check not only the status of their own jacks but also the jack information (jack load, jack stroke) of the fulcrum B which is another work area 19, the management headquarters 13 The contents of the instructions from can be instantly understood, and the jack control work can be performed smoothly and speedily.

  In this way, when the jack devices are arranged in the respective work areas 19 scattered over a wide area and they are centrally managed in the management headquarters 13 and the work is performed, the workers 21 of the respective work areas 19 include themselves. By sharing jack information of all work areas 19, it is possible to make an instruction from the management headquarters 13 and make a work plan for itself, and to proceed with work without wasting work time in a limited work period. Can do.

In the above-described embodiment, the bridge girder feeding construction method has been described. However, the present invention is not limited to this, and can be similarly applied in the case of construction with multi-point support by a jack device. For example, as an example close to the bridge girder delivery construction method, the material is supported by a jack placed on a temporary support leg when, for example, in a construction site such as a factory, there is a power transmission line, etc., and it is impossible to work with a crane. However, there is a case where the paper is sent out in the horizontal direction.
Further, even in the case where the delivery is not performed, the present invention can be similarly applied to a case where, for example, a construction such as supporting a multi-point like a huge stadium roof is supported.

It is explanatory drawing explaining the outline | summary of the sending-out construction method concerning one embodiment of this invention. It is explanatory drawing of the apparatus used for the delivery construction method shown in FIG. It is explanatory drawing of the display content of the display screen of headquarters PC and fulcrum PC.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bridge pier 3 Construction yard 5 Back trolley 7 Front trolley 9 Bridge girder 11 Support point jack device 13 Management headquarters 15 Control device 17 Headquarters PC
17a Display screen of headquarters PC 19 Work area 21 Worker 23 Hydraulic control unit 25 Support point PC
25a Display screen of fulcrum PC 27 Measurement / control LAN cable 31 Image display unit 33 Jack load information display unit 35 Work status display unit 37 Jack stroke information display unit 39

Claims (7)

Structure moving work using a jack device that supports the structure at multiple points by a plurality of jack devices installed in a plurality of work areas, and moves the structure by controlling the plurality of jack devices by a central control device. In the method, the operation information of the plurality of jack devices is acquired from the central control device so that the head office operator who operates the central control device can visually check the operation information of the plurality of jack devices and Each worker in each work area can visually confirm the operation information of the plurality of jack devices, and each worker can use the jack device based on the instruction from the head office worker and the operation information of the plurality of jack devices. A structure moving construction method using a jack device characterized in that the operation is performed. 2. The structure moving construction method using the jack device according to claim 1, wherein the jack information includes jack load information and jack stroke information. The structure using the jack device according to claim 1 or 2, wherein the jack information includes information on a work situation such as a situation where work preparation is completed, a situation where preparation is not completed, and an emergency stop situation. Object moving construction method. The structure moving construction is a delivery construction method in which a jack device is installed at the upper ends of a plurality of bridge piers, and bridge girders are sequentially sent from the delivery cart installed in a construction yard to the jack device to be bridged. The structure moving construction method as described in 1-3. Structure moving work using a jack device that supports the structure at multiple points by a plurality of jack devices installed in a plurality of work areas, and moves the structure by controlling the plurality of jack devices by a central control device. In the system, a first display device that obtains information from the central control device and displays the plurality of jack operation information, and the jack information that is disposed in each work area and connected to the first display device A structure moving construction system using a jack device, characterized by comprising a second display device for displaying the above. 6. The structure moving construction system using a jack device according to claim 5, wherein the jack information includes jack load information and jack stroke information. The structure using the jack device according to claim 5 or 6, wherein the jack information includes information on a work situation such as a situation where work preparation is completed, a situation where preparation is not completed, and an emergency stop situation. Object moving construction system.

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