JP2000283755A - Method and device for controlling exertion of manufacture of caisson of slip form on floating dock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a device, and reduce manufacturing costs by picking up the images of a plurality of points of measurement on a slip form with cameras provided at points with known three-dimensional coordinates on a floating dock and computing their three-dimensional coordinates and the degree of verticality of the form. SOLUTION: This device is constituted of cameras 8 provided at points with known three-dimensional coordinates on a floating dock 1, a plurality of points 9 of measurement on a slip form 2, and a means to measure the degree of verticality. The digital cameras 8 are mounted to four points with known three-dimensional coordinates on the floating dock 1, and the plurality of points 9 of measurement are mounted to points with known three-dimensional coordinates on the slip form 2. By simultaneously picking up the images of the points 9 of measurement by the plurality of digital cameras 8 and superimposing the images by a stereo image measuring method, the three- dimensional coordinates of the points 9 in a coordinate system based on the mounting points of the cameras 8 are obtained and are inputted to a computer to compute the degree of verticality and amount of rise of the form 2 with respect to the dock 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for managing a caisson construction using a slip form on a floating dock, and more particularly to a method for controlling the verticality of a slip form.
The present invention relates to a construction management method and apparatus for caisson production using a slip form on a floating dock capable of measuring a lift amount.

[0002]

2. Description of the Related Art Generally, in a large-scale construction, many works are congested and proceed. Therefore, if one work is interrupted, its spillover range is wide, which may hinder the whole construction process. is there.

[0003] Also, in offshore construction, work is often interrupted due to marine and weather conditions. Therefore, it is important to shorten the construction period by performing mass and rapid construction. At the same time, it is necessary to consider cost reduction, which is a recent social demand.

For example, in caisson type revetment work,
A caisson manufacturing method using a slip form on a floating dock has been filed for the purpose of shortening the construction period of caisson manufacturing, towing and installation work and reducing costs. FIG. 5 and FIG. 6 are explanatory views of this method, and this method is as follows.

[0005] While casting concrete using the slip form 2 on the floating dock 1, the formwork is automatically raised to produce the caisson 3.

In the caisson making yard 4 on land, a caisson bottom plate 5 is made in parallel with the caisson making on the floating dock 1.

After completing the production of the caisson and towing the caisson to a predetermined position to install the caisson, the crane 6 is used to remove the slipform.

After the slip form 2 is removed, the floating dock 1 is towed to the caisson yard 4 and the bottom slab 5 is loaded.

[0009] The slip form 2 is attached to the bottom slab 5, and the next caisson 3 is manufactured.

[0010]

The management items required for caisson production using the slip form 2 include the verticality of the form when the form is raised, the amount of rise, the load on the hydraulic cylinder for raising the form, and the like. . Of these control items, slip form 2 which has been used on land
Is applied to a floating dock that is shaking or tilting, it is necessary to consider a method of measuring the verticality of the formwork.

That is, in the case of the ground, the absolute verticality may be measured, but in the case of the floating dock 1, the verticality of the slip form 2 with respect to the floating dock 1 needs to be measured. Therefore, the vertical laser 7 or transit which has been used so far cannot be used because the installation point fluctuates or tilts as shown in FIG.

On the other hand, a water-filled level meter using a water pressure gauge is used for measuring the amount of rise of the slip form. This method cannot be used as it is for the reasons described above. For example, a method of measuring the inclination of the floating dock and correcting the above-mentioned water-filled level meter with the amount of the inclination can be considered, but since sensors and peripheral devices increase,
This is not an optimal method because the total error is large and the cost increases.

In addition, there is a method of incorporating a stroke sensor into a hydraulic cylinder for ascending the formwork, but this increases production costs such as custom production of the hydraulic cylinder.

The present invention has been made to eliminate the above disadvantages.

[0015]

According to the present invention, there is provided a construction management apparatus for caisson production using a slip form on a floating dock, comprising: a camera provided at a known three-dimensional coordinate point on a floating dog; A plurality of measurement points provided at known points, and means for calculating an image of the measurement point taken by the camera and measuring the verticality of the slip form with respect to the floating dock.

According to the method of the present invention for managing the construction of a caisson using a slip form on a floating dock, a plurality of measurement points on the slip form are photographed by a camera provided at a known point on three-dimensional coordinates on the floating dock. The three-dimensional coordinates of the measurement point are obtained from the image of the measurement point, and the verticality of the slip form with respect to the floating dock is calculated.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

In the present invention, as shown in FIGS. 1 and 2, digital cameras 8 are attached to four corners, which are known three-dimensional coordinates on floating dock 1, and known three-dimensional coordinates on slip form 2. A plurality of measurement points 9 are attached to the
The measurement points 9 on the slip form 2 are photographed at the same time, and the photographed images are superimposed by the stereo image measurement method, so that the measurement points 9 on the coordinate system based on the mounting points of the plurality of digital cameras 8 are obtained. The three-dimensional coordinates are obtained, the above-mentioned three-dimensional coordinates are added to the computer 10, and the verticality and the amount of rise of the slip form 2 with respect to the floating dock 1 are calculated and displayed on the monitor 11.

FIG. 3 is a block diagram of a construction management apparatus for caisson production using a slip form on a floating dock according to the present invention. Reference numeral 12 denotes a camera controller, 13 denotes an operation unit, and 14 denotes a power supply.

FIG. 4 is an explanatory diagram of a monitor display.

[0021]

As described above, the construction management method and apparatus of the present invention for caisson production using slip forms on a floating dock have the following effects.

1) The apparatus can be simplified by using image data taken by a digital camera to measure the relative verticality of the slip form with respect to the floating dock and the amount of rise of the slip form. This leads to a reduction in production costs, as well as a reduction in operation and maintenance costs.

2) While the caisson is being manufactured, the verticality of the slip form with respect to the floating dock is measured in real time and displayed on the monitor including the design position, so that the operator can ascend in real time from the design position, such as the amount of deviation from the design position. Can be grasped, and form management at the construction stage becomes possible.

3) The behavior of the slip form after stroke control of the hydraulic cylinder can be confirmed on the monitor by displaying the state of the ascending slip form on the monitor.

4) Measurement work by human power can be reduced, and the efficiency of construction and the labor of site management can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view of a construction management device for caisson production using a slip form on a floating dock according to the present invention.

FIG. 2 is a plan view of a construction management apparatus for caisson production using slip forms on a floating dock according to the present invention.

FIG. 3 is a block diagram of a construction management apparatus for caisson production using slip forms on a floating dock according to the present invention.

FIG. 4 is an explanatory diagram of a monitor display in the construction management device for caisson production using a slip form on a floating dock according to the present invention.

FIG. 5 is a front view of a conventional construction management apparatus for caisson production using a slip form on a floating dock.

FIG. 6 is an explanatory diagram of a conventional construction management device for caisson production using slip forms on a floating dock.

FIG. 7 is an explanatory diagram of a conventional construction management apparatus for caisson production using a slip form on a floating dock.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floating dock 2 Slip form 3 Caisson 4 Production yard 5 Bottom plate 6 Crane 7 Vertical laser 8 Digital camera 9 Measurement point 10 Computer 11 Monitor 12 Camera controller 13 Operator 14 Power supply

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Yukio Nishimura 1534-1, Yotsuku-cho, Nishinasuno-cho, Nasu-gun, Tochigi F-term (reference) 2F065 AA04 AA09 AA20 AA37 BB05 BB27 CC14 DD00 DD06 FF05 FF61 JJ03 JJ05 NN20 PP11 QQ23 SS01 SS13

Claims (6)

[Claims] 1. A camera provided at a known three-dimensional coordinate point on a floating dog, a plurality of measurement points provided at a known three-dimensional coordinate point on a slip form, and an image of the measurement point taken by the camera. Means for measuring the verticality of the slip form with respect to the floating dock, and a caisson construction management apparatus using the slip form on the floating dock. 2. The construction management apparatus according to claim 1, further comprising means for measuring an amount of rise of the slip form with respect to the floating dock. 3. The construction management apparatus for caisson production using a slip form on a floating dock according to claim 1, further comprising a monitor for displaying an image of the slip form. 4. A plurality of measurement points on a slipform are photographed by a camera provided at known three-dimensional coordinate points on the floating dock, and three-dimensional coordinates of the measurement points are obtained from the images of the measurement points. A method for managing the construction of caisson production using a slip form on a floating dock, wherein the verticality of the slip form with respect to the dock is calculated. 5. The construction management method for caisson production using a slip form on a floating dock according to claim 4, wherein a rise amount of the slip form with respect to the floating dock is calculated from the image. 6. The construction management method for caisson production using a slip form on a floating dock according to claim 4, wherein an image of the slip form is displayed on a monitor.