JPH05296878A - Smooth bottom construction panel and method for constructing smooth bottom - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a smooth bottom suitable for use as the bottom of a water tank for shallow water tests and the bottom of a plant membrane tank. [Structure] A panel P having a panel body 2 made of precast concrete whose upper surface is finished to be smooth is prepared. The vertical adjustment bolt 3 is assembled to the panel body 2. Position and install the bolt pedestal 8 on the foundation surface 7. The panel P is arranged on the base surface 7, and the adjustment bolt 3 is engaged with the bolt receiving base 8. The upper surface of the panel body 2 is leveled by adjusting the screwing of the adjusting bolt 3 with the bolt receiving base 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a smooth bottom construction panel for constructing a smooth bottom for use as a bottom of a water tank for shallow water testing, a bottom for installing a membrane tank in a plant, etc., and a smooth bottom for construction using the panel. It is about the construction method.

[0002]

2. Description of the Related Art In a water tank test conducted using a model ship, etc., when a model is floated on the water surface, shallow water is used under the condition that the distance between the model bottom and the bottom surface of the water tank is about 1 to 20 cm. There are tests, but in this case, in order to obtain accurate data, the bottom level of the aquarium may require high smoothing accuracy within ± 1 mm.

[0003]

However, since the bottom surface of the aquarium is generally finished by hand and it is difficult to eliminate the presence of irregularities, it is not possible to obtain smoothness within ± 1 mm. Is the reality.

Therefore, the present invention provides a panel for constructing a smooth bottom surface and a method for constructing a smooth bottom surface, which can easily obtain a smooth bottom surface with high smoothness required for the bottom surface of the water tank for the shallow water test. Is what you are trying to do.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a bolt pedestal on a foundation surface for constructing a smooth bottom surface at a required portion of a panel body made of precast concrete having a smooth upper surface. An adjusting bolt for screwing into the panel body is arranged so as to project to the lower surface side of the panel body and is rotatably assembled.

In addition, a panel having the above-mentioned structure is prepared in advance, and a bolt pedestal capable of being screwed into the adjusting bolt of the panel is provided on a base surface on which a smooth bottom surface is to be constructed.
The adjustment bolt is positioned and installed so as to correspond to the position of the adjustment bolt, and then the panel is arranged on the foundation surface so that the bolt holder and the adjustment bolt are engaged with each other. A method for constructing a smooth bottom surface is characterized in that the upper surface level of the panel body is leveled to make the upper surface of the panel body a smooth bottom surface by performing screwing adjustment of an adjustment bolt with respect to the base.

[0007]

[Function] Since the top surface of the panel body made of precast concrete that composes the panel is finished to be smooth, if the panel is placed on the foundation surface and the level is adjusted with the adjusting bolt, a highly accurate smooth bottom surface can be easily obtained. Will be

[0008]

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

FIGS. 1 and 2 show an embodiment of the present invention, showing a case where a smooth bottom surface of a water tank 1 for shallow water testing is constructed.

The smooth bottom construction panel P is previously installed in the water tank 1.
Prepare the required number of divisions according to the planar shape of. The panel P has a rectangular panel body 2 made of a block of precast concrete which is reinforced concrete produced by using a highly accurate formwork, and the lower end portion of the panel body 2 is provided at least at three required places. An adjustment bolt 3 is rotatably assembled so as to project downward from the lower surface so that the upper end surface coincides with the upper surface level, and a bolt adjusting jig 4 for rotating operation is inserted into the upper end portion of the adjustment bolt 3. Square holes 5 are provided, and the panel body 2 is further provided.
The upper surface (surface) is mechanically highly accurately smoothed. In addition, 6 is the adjustment bolt 3 is the panel body 2
2 shows a holding member for holding it so that it does not come out to the upper surface side of the.

As described above, in the state where the required number of panels P are prepared, first, the SUS block made of SUS block which can be screwed into the adjusting bolt 3 of the panel P is formed on the base surface 7 on which the smooth bottom surface is to be constructed. The bolt pedestal 8 is positioned and installed so as to correspond to the mounting position of the adjusting bolt 3. Next, the panels P are aligned on the base surface 7 and the adjustment bolts 3 are engaged with the bolt receiving bases 8, respectively. Thereafter, the bolt adjusting jig 4 is inserted into the square hole 5 at the upper end of the adjusting bolt 3 from the upper surface side of the panel main body 2, and the panel main body 2 is rotated by rotating the bolt adjusting jig 4.
Adjust the top level of the. In this case, when the bolt adjusting jig 4 is rotated, the adjusting bolt 3 for the bolt receiving base 8 is rotated.
Since the screwing amount can be changed, the panel body 2 can be displaced in the vertical direction. Therefore, the horizontal level of the upper surface of each panel body 2 can be easily and accurately adjusted by adjusting the screwing amount of the adjusting bolt 3 at the required position with respect to the bolt receiving base 8, whereby the upper surface of each panel body 2 is placed in the water tank. No. 1 smooth bottom surface.

In the above, the panel body 2 is a reinforced concrete plate manufactured by using a formwork finished in advance in a factory or the like with high precision, and the upper surface is mechanically smoothed, so that the upper surface is smooth. The accuracy can be within ± 1 mm. Therefore, if the level adjustment on the base surface 7 is accurately performed, the overall smoothing accuracy of the aligned panel main bodies 2 can be kept within ± 1 mm. Therefore, when a shallow water test is performed using the upper surface of each panel body 2 in such an aligned state as a smooth bottom surface, highly accurate test data can be obtained.

In the above embodiment, the case where it is used for the bottom surface of the water tank 1 for shallow water test is shown, but it can be similarly applied to the bottom surface of the membrane tank of a plant. In this case, It is needless to say that the tank installation bottom surface can be a smooth bottom surface to contribute to stress relief of the membrane tank, and various changes can be made within the range not departing from the gist of the present invention.

[0014]

As described above, according to the panel for constructing a smooth bottom surface of the present invention, since it can be manufactured in a factory, it is possible to obtain a smoothing accuracy within ± 1 mm, which has been difficult to produce in the field conventionally. , Which is extremely advantageous because it can be put out on the upper surface of a panel body made of precast concrete, and according to the method for constructing a smooth bottom surface of the present invention, the panel is placed on the foundation surface and assembled to the panel body. Since the adjustment bolts that have been set are screwed and adjusted to the bolt pedestal installed on the foundation surface side, the top surface of the panel body can be easily leveled and the top surface of the panel body can be adjusted with high accuracy. It is possible to have a smooth bottom surface, and therefore, it is extremely advantageous to use it as a bottom surface of a water tank for shallow water tests or a bottom surface of a plant where a membrane tank is installed.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an embodiment of a method for constructing a smooth bottom surface of the present invention.

FIG. 2 is a partially enlarged sectional view of a panel.

[Explanation of symbols]

 P panel 2 Panel body 3 Adjustment bolts 7 Foundation surface 8 Bolt pedestal

Claims (2)

[Claims] 1. An adjustment bolt for screwing into a required portion of a panel body made of precast concrete whose upper surface is finished to be smooth to a bolt pedestal on a foundation surface for constructing a smooth bottom surface, and a lower surface side of the panel body. A panel for constructing a smooth bottom surface, characterized in that the panel is constructed so as to be protruded to and rotatably assembled. 2. A panel comprising a panel body made of precast concrete whose upper surface is finished to be smooth in advance, and an adjusting bolt which is rotatably assembled to a required portion of the panel body so as to project to the lower surface side. And then
On the foundation surface where a smooth bottom surface should be constructed, a bolt pedestal that can be screwed into the adjustment bolt of the panel is positioned and installed so as to correspond to the position of the adjustment bolt,
Next, on the foundation surface, the panel is arranged so that the bolt receiving base and the adjusting bolt are engaged with each other, and thereafter, by adjusting the screwing of the adjusting bolt with the bolt receiving base, the panel is obtained. A method for constructing a smooth bottom surface, wherein the top surface level of the main body is leveled to make the top surface of the panel body a smooth bottom surface.