JP-3255722-U - Concrete block installation equipment

Abstract

[Problem] To provide a concrete block installation device that can be applied to concrete blocks of general shapes and can be installed without being affected by the horizontality of the installation surface. [Solution] An installation device used for installing concrete blocks 39, comprising a flat plate-shaped first plate 35, an adhesive 36 formed on the first plate 35, a plurality of fine spheres or granular steel balls 23 held in place by being scattered on the formed adhesive 26, and a flat plate-shaped second plate 37 placed on the fine hard balls 23 and positioned opposite the first plate 35. [Selection Diagram] Figure 5

Inventors

• 奥田 智一
• 藤原 孝志

Assignees

• 奥田 智一

Dates

Publication Date

20260507

Application Date

20251216

Claims (3)

1. An installation device used for installing concrete blocks, A first flat plate in the shape of a flat plate, The adhesive formed on the first flat plate, A hard ball consisting of a plurality of fine spheres or granular steel balls held in place by being scattered on the formed adhesive, An installation device comprising a second flat plate, which is placed on the held hard ball and positioned opposite the first flat plate.
2. The installation device according to claim 2, wherein the adhesive is water-based glue, and each of the first and second flat plates is made of iron plate.
3. The installation device according to claim 3, further comprising a limiting means for restricting the horizontal movement of the second flat plate relative to the first flat plate within a predetermined range.

Description

This invention relates to a concrete block installation device, and more particularly to a concrete block installation device for the installation and horizontal movement of precast concrete blocks such as box culverts. Figure 12 is a schematic diagram of a concrete block installation method disclosed in Japanese Patent Publication No. 2000-273938, Figure 13 is a cross-sectional view of the line XIII-XIII in Figure 12, and Figure 14 is an enlarged view of the "Y" portion in Figure 13. Referring to these diagrams, precast concrete blocks, specifically hollow box culverts 61a to 61c, are installed sequentially connected on the foundation concrete 19. Box culvert 61d, secured and lifted by wire 18, is lowered from above near box culvert 61c. It is then pulled in the direction indicated by the horizontal arrow, moving into a connected state as shown by box culverts 61a to 61c. To reduce frictional resistance with the foundation concrete 19 during horizontal movement, the lower part of the box culvert 61 has a special shape. Specifically, as shown in Figure 14, a projection 62 is formed on the lower surface of the box culvert 61, and a steel plate 63 is attached to the surface of the projection 62. Meanwhile, a guide rail 65 made of I-beam steel is embedded in the foundation concrete 19, and multiple steel balls 66 are arranged on its upper surface. With the box culvert 61 and foundation concrete 19 formed in this manner, the box culvert 61 is installed on the foundation concrete 19 so that the projection 62 is positioned on the guide rail 65. When the box culvert 61 is moved horizontally in this state, the bearing effect of the steel ball 66 reduces resistance to horizontal movement, allowing the box culverts 61 to be smoothly connected to each other. Typically, after the box culverts 61 are pulled together, further compaction work is performed to ensure a seal between them, and they become a single unit. Then, fluid ready-mix concrete is poured between the lower part of the box culvert 61 and the upper surface of the foundation concrete 19, thereby fixing the box culvert 61 to the foundation concrete 19. Japanese Patent Publication No. 2000-273938 This diagram shows a schematic representation of the concrete block installation method according to this invention.This is a cross-sectional view of the line II-II in Figure 1.This is an enlarged view of the "X" portion in Figure 2.This is an enlarged cross-sectional view of the IV-IV line in Figure 3.This figure shows a schematic step of a concrete block installation method according to another embodiment of this invention.This figure shows a modified version of the installation method according to the process shown in Figure 5.This is a plan view showing the schematic structure of the concrete block installation device according to this invention.This is a cross-sectional view of the VIII-VIII line in Figure 7.This is a plan view showing the schematic structure of the concrete block installation device according to this invention.This is a plan view showing the schematic structure of a concrete block installation device according to another embodiment of this invention.This is a cross-sectional view of the line XI-XI in Figure 10.This diagram shows a schematic representation of a conventional method for installing concrete blocks.This is a cross-sectional view of the line XIII-XIII in Figure 12.This is an enlarged view of the "Y" portion in Figure 13. Figure 1 is a schematic diagram showing the installation method of the concrete blocks according to this invention; Figure 2 is a cross-sectional view of the line II-II in Figure 1; Figure 3 is an enlarged view of the "X" section in Figure 2; and Figure 4 is an enlarged cross-sectional view of the line IV-IV in Figure 3. Referring to these diagrams, a pair of guide rails 21a and 21b are installed on the foundation concrete 19, and box culverts 16a to 16c, which are precast concrete blocks, are sequentially installed above them. Guide rails 21a and 21b are embedded within the foundation concrete 19 and fixed on anchors 25 whose horizontal alignment has been adjusted. Therefore, the box culvert 16 is installed with the horizontal alignment of guide rails 21a and 21b ensured. An adhesive 26, such as water-based glue, is formed on the upper surface of the horizontal member 27 of the guide rail 21b. Numerous micro-steel balls (1-3 mm in diameter) or granular spheres (4-12 mm) 23, similar to those used for sandblasting, are scattered and arranged (3-100 per 100 cm²). In this embodiment, the box culvert 16, secured by a wire 18, is suspended from a fixed position and moved horizontally to a predetermined location. Therefore, the adhesive 26 is formed over the entire upper surface of the horizontal member 27, and similarly, the micro-steel balls 23 are arranged randomly or at predetermined intervals across the entire area of the adhesive 26. Since the micro-steel balls 23 are held in place by the adhesive 26, there is no ris