JP2001311171A - Concrete block and installation method of concrete block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a novel concrete block and installation method of the concrete block by which the bottom plate of the concrete block can be extremely simply and rapidly supported by the bearing claw of a vertical adjustment device while utilizing a recess even after the concrete block has been stably laid on the foundation face by forming the recess in the peripheral edge of the lower face of the bottom plate of the concrete block, thereby conventional carefulness is not required in the work and hence, the execution efficiency is enhanced. SOLUTION: A recess 5 in which a bearing claw 4 of a vertical adjustment device 3 capable of vertically adjusting the concrete block 1 can be inserted and fixed from the outside to the peripheral edge of the lower face of the bottom plate 2 of the concrete block 1 is formed in the concrete block.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large-sized concrete block such as a retaining wall block, a drainage block, a fence channel block, a box culvert and a method of installing a concrete block.

[0002]

2. Description of the Related Art When constructing retaining walls, drains, drainage tunnels and the like by arranging large concrete blocks one after another, the concrete blocks are transported to the site by a transport vehicle such as a truck, and a truck crane or the like is used. And lowered on the foundation surface, and are sequentially arranged at predetermined positions.

At this time, the concrete block is
It is necessary to temporarily support the four corners of the bottom plate by an up-down adjustment device placed on the base surface, and to adjust and correct the bottom plate so that it is in a correct posture.

However, concrete blocks suspended by a crane are very unstable, so that the suspended concrete blocks must be supported by a vertical adjustment device placed at a predetermined position on a foundation surface. However, very careful work was required, and this work greatly reduced construction efficiency.

The present invention has been made in view of the above situation and has been made to solve the above problem. By forming a concave portion in the peripheral portion of the lower surface of the bottom plate of the concrete block, the concrete block is placed on the base surface and stabilized. In this state, the bottom plate of the concrete block can be supported very easily and quickly with the support claws of the vertical adjustment device by using the recesses, so that this work does not require conventional caution. Accordingly, the present invention provides an epoch-making concrete block having a simple structure and a method of installing a concrete block, which improves construction efficiency.

[0006]

The gist of the present invention will be described with reference to the accompanying drawings.

A concave portion 5 is formed in a peripheral portion of the lower surface of the bottom plate 2 of the concrete block 1 so that the support claw 4 of the vertical adjusting device 3 for adjusting the elevation of the concrete block 1 can be inserted and locked from outside. Pertaining to a concrete block.

When the concrete block 1 is placed on the base surface 6, the support claw 4 of the vertical adjustment device 3 is inserted from the outside between the recess 5 and the base surface 6 by the recess 5. The concrete block according to claim 1, characterized in that the insertion gap 7 is formed.

The concrete block according to any one of claims 1 and 2, wherein the concave portion 5 is integrally formed when the concrete block 1 is formed.

Further, the concrete block according to any one of claims 1 to 3 is placed on a base surface 6, and the vertical adjusting device 3 is externally placed in the recess 5 of the placed concrete block 1. Of the concrete block 1 by the vertical adjusting device 3.
After adjusting to a predetermined horizontal or inclined state,
Holding means 8 for holding the correct posture of concrete block 1
And the gap 9 between the base surface 6 and the lower surface of the bottom plate 2 of the concrete block 1 is filled with a hardening agent 10 such as cement mortar or concrete mortar. The method according to the present invention relates to a method for installing a concrete block, characterized in that the concrete block 1 is installed.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.

When the concrete block 1 is placed at a predetermined position on the base surface 6, the support claw 4 of the vertical adjustment device 3 is inserted from the outside between the recess 5 formed in the bottom plate 2 and the base surface 6. An insertion gap 7 is formed.

Therefore, according to the present invention, even after the concrete block 1 is stably placed at a predetermined position on the base surface 6, the support claw 4 of the vertical adjustment device 3 can be inserted into the recess 4 (insertion space 7). Can be inserted and locked to support the bottom plate 2 with the vertical adjustment device 3, so that this work does not require any careful work as in the past, and this work can be performed very easily and quickly. You can do it. Therefore, according to the present invention, the construction efficiency is improved as compared with the conventional installation method.

Further, since the concrete block 1 of the present invention can be constituted simply by forming the concave portion 5 in the peripheral portion of the lower surface of the bottom plate 2, this structure can be designed and realized easily, and is excellent in mass productivity. It can be provided as an inexpensive product.

When the bottom plate 2 of the concrete block 1 is supported by the vertical adjustment device 3, the bottom plate 2 is adjusted and corrected to a predetermined horizontal or inclined state, and the correct posture of the concrete block 1 is held by the holding means 8. The vertical adjustment device 3 is removed.

Next, the hardening agent 10 such as cement mortar or concrete mortar is filled in the gap 9 between the base surface 6 and the lower surface of the bottom plate 2 of the concrete block 1 to set the concrete block 1 on the base surface 6, and the operation is completed. Becomes

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described with reference to the drawings.

In this embodiment, a recess 5 is provided in the peripheral edge of the lower surface of the bottom plate 2 of the concrete block 1 so that the support claw 4 of the vertical adjustment device 3 capable of adjusting the elevation of the concrete block 1 can be inserted and locked from outside. Has formed.

More specifically, the concrete block 1 of this embodiment shows a retaining wall block 1A as a first embodiment in FIGS. 1 to 4, and a concrete block block 1B as a second embodiment in FIG. FIG. 6 shows a box culvert 1C as a third embodiment, and FIG. 7 shows a U-shaped groove block 1D as a fourth embodiment. 1, (a) in FIG. 5, FIG. 6, and FIG. 7 are side views of the concrete block 1, (b) are rear views, and (c) are bottom views.

The concave portion 5 of the present embodiment is formed by forming a plurality of concave portions in the peripheral portion of the lower surface of the bottom plate 2 of the concrete block 1 in a rectangular shape. 6, as shown in FIG. 7 (b), the bottom plate 2 is also formed so as to open outward. Further, in the present embodiment, the concave portion 5 is integrally formed only when the concrete block 1 is formed.

The recess 5 is formed, for example, as shown in FIG.
As shown in FIG. 3, when the concrete block 1 is placed on the base surface 6, an insertion gap 7 for inserting the support claw 4 of the vertical adjustment device 3 from the outside between the recess 5 and the base surface 6.
Is formed, and the width of the recess is set so that the support claw 4 of the vertical adjustment device 3 can be inserted and locked in the recess 5.

More specifically, in the first and second embodiments, as shown in FIGS. 1 and 5 (c), the front edge of the lower surface of the bottom plate 2 of the concrete block 1 to be installed side by side. In the third and fourth embodiments, FIGS. 6 and 7 show (c) the case where the concave portions 5 are formed at a total of three positions, that is, two positions on the left and right sides and one position in the middle of the trailing edge. Thus, the left and right front edges of the bottom surface of the bottom plate 2 of the concrete block 1,
The figure shows a case where the recess 5 is formed at a total of four places, that is, two places on the left and right sides of the trailing edge.

Although the number of the recesses 5 is not particularly limited, as in the present embodiment, at least three recesses 5 are formed and three or more points of the bottom plate 2 are adjusted by the vertical adjustment device 3. It is desirable to support the concrete block 1 because the concrete block 1 is stably supported and the vertical adjustment device 3 stably corrects the posture of the concrete block 1. Moreover, the arrangement structure of the recess 5 as in the third and fourth embodiments may be applied to the concrete block 1 in the first and second embodiments, or the concrete block in the third and fourth embodiments. The arrangement structure of the concave portions 5 as in the first and second embodiments may be applied to the first embodiment.

The vertical adjustment device 3 of this embodiment employs a hydraulic jack provided with the support claws 4, but a jack device having another configuration may be used.

Next, an installation method substantially common to each embodiment will be described with reference to FIGS. 2 to 4 of the first embodiment.

First, the concrete block 1 suspended by a truck crane or the like is placed at a predetermined position on the base surface 6 where the concrete block 1 is to be installed, as shown in FIG.

Then, an insertion gap 7 is formed between the plurality of recesses 5 formed in the bottom plate 2 and the base surface 6 for inserting the support claws 4 of the vertical adjustment device 3 from outside. As shown in FIG.
Can be inserted and locked, and the bottom plate 2 of the concrete block 1 can be supported by each of the vertical adjustment devices 3.

Therefore, in this embodiment, after the concrete block 1 is stably placed at a predetermined position on the base surface 6 in advance, the support claw of the vertical adjustment device 3 is inserted into the recess 4 (insertion space 7). Since the bottom plate 2 can be supported by the vertical adjustment device 3 by inserting and locking the base 4, this operation does not require any careful work as in the past, and this operation can be performed extremely easily and quickly. Because it is possible, the construction efficiency is improved as compared with the conventional installation method.

After the bottom plate 2 of the concrete block 1 is supported by the vertical adjusting device 3, the bottom plate 2 is adjusted and corrected to a predetermined horizontal or inclined state, and the correct posture of the concrete block 1 is maintained as shown in FIG. The vertical adjustment device 3 is removed by being held by the means 8.

Although the holding means 8 in the drawing shows the case where the liner plate 11 is adopted, wedges or other appropriate spacers may be used.

Next, as shown in FIG. 4, a hardening agent 10 such as cement mortar or concrete mortar is filled in a gap 9 between the base surface 6 and the lower surface of the bottom plate 2 of the concrete block 1 so that the concrete block 1 is set (hardened and fixed), and the operation is completed.

The hardener 10 is preferably injected from an inlet 12 provided in the bottom plate 2 of the concrete block 1.
When the hardening agent 10 is injected, it is preferable that the hardening agent 10 be sealed around the gap 9 so as not to leak from the side.

[0033]

Since the present invention is constructed as described above, the concrete block is stably placed at a predetermined position on the foundation surface, and then the supporting claw of the vertical adjusting device is inserted into the recess (insertion space). Can be inserted and locked to support the bottom plate with this vertical adjustment device, so that this work does not require any caution as in the past, and this work can be performed very easily and quickly. As a result, the construction efficiency is improved as compared with the conventional installation method, and the concrete block of the present invention can be constructed simply by forming a concave portion on the peripheral portion of the lower surface of the bottom plate of the concrete block. It is a configuration that can be designed and realized
It is an epoch-making concrete block that is extremely practical and has excellent mass productivity and can be configured at low cost.

Further, according to the second aspect of the present invention, a concrete block excellent in practicability, which can be easily designed and realized with a simple configuration of the concave portion which reliably exerts the above-mentioned operational effects.

According to the third aspect of the present invention, it is possible to easily construct a concrete block having a concave portion at the peripheral edge of the lower surface of the bottom plate, and it is possible to provide an inexpensive product excellent in mass productivity. It will be an excellent concrete block.

According to the fourth aspect of the present invention, as described above, after the concrete block is stably placed at a predetermined position on the foundation surface, the vertical adjustment device is placed in the recess (insertion space). Since the support claw is inserted and locked and the bottom plate is supported by this vertical adjustment device, this work does not require any caution as in the past, so that this work can be performed very easily and quickly. Therefore, the construction efficiency of the concrete block can be improved as compared with the conventional installation method.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a first embodiment.

FIG. 2 is an explanatory perspective view showing a state where the concrete block of the first embodiment is placed on a foundation surface.

FIG. 3 is an explanatory perspective view showing a state in which the concrete block of the first embodiment is held by holding means and a vertical adjustment device is removed from a concave portion.

FIG. 4 is an explanatory side view showing a state in which a hardening agent is injected and filled between a foundation surface and a lower surface of a bottom plate of a concrete block to install a concrete block on the foundation surface from the state of FIG. 3;

FIG. 5 is an explanatory diagram showing a second embodiment.

FIG. 6 is an explanatory diagram showing a third embodiment.

FIG. 7 is an explanatory diagram showing a fourth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Concrete block 2 Bottom plate 3 Vertical adjustment device 4 Bearing claw 5 Depression 6 Base surface 7 Insertion gap 8 Retaining means 9 Gap 10 Hardening agent

Claims (4)

[Claims] 1. A concrete block formed in a peripheral portion of a lower surface of a bottom plate of a concrete block so that a supporting claw of a vertical adjusting device capable of vertically moving the concrete block can be inserted and locked from outside. . 2. When the concrete block is placed on a base surface, the recess forms an insertion gap between the recess and the base surface for inserting a support claw of the vertically adjusting device from outside. The concrete block according to claim 1, wherein the concrete block is configured as follows. 3. The concrete block according to claim 1, wherein said concave portion is formed integrally when said concrete block is formed.
The concrete block according to any one of the above. 4. The concrete block according to any one of claims 1 to 3 is placed on a foundation surface, and a supporting claw of the vertical adjustment device is externally inserted into the concave portion of the placed concrete block. After the insertion and locking, the bottom plate of the concrete block is adjusted and corrected to a predetermined horizontal or inclined state by the vertical adjustment device, the correct posture of the concrete block is held by holding means, and the vertical adjustment device is removed. A method for installing a concrete block, characterized by filling a gap between a surface and a lower surface of a bottom plate of a concrete block with a hardening agent such as cement mortar or concrete mortar and installing the concrete block on a foundation surface.