JPS59431A - Construction of corners of retaining wall using plate corner block - Google Patents

Abstract

PURPOSE:To rigidly construct a retaining wall by a method in which specific plate corner blocks are stacked by arranging alternately their normal and reverse sides for each stage. CONSTITUTION:A fixing portion 4 is continuously provided in a stay portion 3 projectonally provided at the back position corresponding to nearly 1/4 of the wall-forming portion 2 of a rectangular plate material. A bent extension portion 7 is provided at an angle on the other side of the wall-forming portion 2, and vertical iron bar through holes 5, 6, and 8 are provided at the ase of the stay portion 3, the center of the fixing portion 4, and the basal end of the extension portion 7 to make up a plate corner block 1. Vertical iron bars 13 are buried in desired holes 5, 6, and 8 of the foundation concrete, and block groups for A-row, consisting of a combination of the blocks 1 and blocks 20 for constructing straight wall, are fitted on the iron bars 13 and stacked in normal state, and soil is packed into square spaces formed by the wall-forming portion 2, the stay portion 3, and the fixing portion 4. Then, the blocks 1 and 20 are stacked on the A-row in reverse state to form B-row. In the same way, the A- and B-rows are constructed in normal and reverse states.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for easily and strongly constructing a retaining wall corner portion using concrete blocks.

Conventionally, when constructing a part of a retaining wall corner using plate-shaped concrete blocks, the walls were built sequentially from both sides, and when the joints were reached, each block was properly placed by casting on-site using temporary formwork such as plywood. The current situation is that it is being processed. However, such construction work cannot sufficiently ensure the safety of the wall during and after construction, the work is complicated, and there are also problems in terms of aesthetics.

The present invention provides a construction method that can solve all of the drawbacks of the prior art, that is, a construction method that can easily, quickly, reliably, and firmly construct a corner part of any type of retaining wall. The purpose is to

The present invention provides a retaining part extending perpendicularly to the wall forming part at the back of the wall forming part, and a fixing part is provided at the extending end of the retaining part, and at one end of the wall forming part, the retaining part extends at right angles to the wall forming part. A bending extension part forming an angle is provided protrudingly, and at least one plate-shaped corner block having a vertical reinforcing bar hole at the base end of the fixing part, the retaining part, and the base end of the bending extension part is arranged at each step in a part of the corner. The structure is characterized in that the reinforcing bars are stacked alternately in right and left directions while aligning all the longitudinal reinforcing holes, and the top of the construction is compressed into the dendritic space formed between each retaining part and fixed part behind the wall forming part. This relates to a method for partially constructing a corner of a retaining wall using plate-shaped corner blocks.

Hereinafter, a method for partially constructing a retaining wall corner according to the present invention will be specifically described based on an embodiment shown in the attached drawings (FIGS. 1 to 13).

First, the corner blocks used in the construction method according to the present invention will be explained with reference to FIGS. The text is a wall forming part that is a rectangular plate with a border, (3)
Preferably, the wall forming part (2) is a retaining part protruding at right angles to the approximately A back position of the width, and (4) is provided continuously with the retaining part (3), and together with the retaining part (3), extends toward the center of the construction surface. The fixed part to be buried deeply, (5) is the base vertical reinforcing bar hole provided at the base of the retaining part (3), (6) is the fixed part vertical reinforcing bar hole provided almost in the center of the fixed part, (7) is the wall surface formation Part (2) - Example of arbitrary angle (2)
(8) is the same bending/distracting part (7).
), (9) is the fixation part (4).
) is a resistance surface that prevents movement toward the wall surface, α is a tip that buffers the lateral pressure received by the fixed part (4), (]l), (12
) are pushing claws and receiving claws provided at both ends of the wall surface forming part (2).

In the structure of the corner block +1), the weight of the block is preferably about 200 kg or more, the width of the wall forming part (2) is about 2.5 to 3 times the height of the wall forming part (2), ) The length up to the tip 0Φ is the wall forming part (2
) The width shall be approximately the same as the road width, but it may be extended or shortened depending on the purpose.

Further, it is preferable that the volume of the fixing part (4) is approximately equal to the volume of the proximal end of the retaining part (3).

Furthermore, the angle (α) formed between the bending/extending portion (7) and the wall surface forming portion (2) can be changed arbitrarily, and by such a change, a part of the corner can easily take a desired angle, as will be described later. can.

In this embodiment, in constructing a portion of the retaining wall corner, in addition to the corner blocks described above, a required number of main body blocks (20) for constructing a straight wall shown in FIGS. 5 and 6 are also used. The main body block (20) has a similar structure to the corner block (11) except that it does not have the bending/extending portion (7).

Next, the construction procedure for a portion of the retaining wall corner having the above structure will be described.

First, corner block (1) and main body pro-tsuku (20
), that is, the wall forming part (2) and the retaining part (
3) The ground surface of the fixed part (4) and its surroundings are consolidated, and the foundation concrete of the required thickness is poured horizontally, and at the same time, the required vertical through holes (51, (61, (81) are drilled with the required strength). Embed and fix the reinforcing bars (13).Then, the seventh
As shown in the figure, the A row block group consisting of the corner block (1) and main block (20) is constructed on the foundation concrete in the correct position. In this case, since the bending angle (α) of the corner block +11 is 45°, a corner angle (β) of 90° can be obtained.

The method of penetrating vertical reinforcement is to first insert vertical reinforcement into the foundation (13).
embed the corner block (11) and the main block (
20) onto the tip of the reinforcing bar and lower it. Or cut the reinforcing bars to about twice the height of blocks (11, (20)) and block +
1) Using the center position of the height of (20) as the seam, install reinforcing bars in the required manner, such as alternating reinforcing bars as single or multiple reinforcing bars, and inject ready-mixed concrete. Between the formed wall surface forming part (2), retaining part (3) and fixing part (4), embed the top of the construction except for necessary drainage channels,
Water is poured into this buried area to subside the top of the construction, and the retaining part (3) is created.
Ideally, the fixed part (4) should be fixed to the construction surface, but if water injection is not possible, the entire rope-shaped reclaimed part, especially the retaining part (3)
) Seal the periphery of the fixing part (4) to the back using a predetermined method. In this way, after constructing the first stage, the second stage is constructed. When constructing the second stage, the corner block +11 and the main block (20) are combined as shown in Fig. 8, and then the first stage ( Construct anti-position on the normal block of A). In such construction work, the vertical reinforcement holes (a') to (h') provided in the second stage (B) reversed corner block (11 and main block (20)) are connected to the vertical corners of the first stage. Block tl) and main block (20) vertical reinforcement hole + al
Completely aligned with ~ (h), vertical reinforcing bar (13) in the same alignment hole
is penetrated, and the joint position of the blocks (11, (20) is brought to the middle of the blocks (11, (20)) of the first stage (A).Concrete is then poured into the matching hole.

Furthermore, water is poured into the soil in the same manner as in the first stage (A).

Thereafter, blocks are constructed alternately in the opposite direction to the required height in the manner described above to form a corner portion of the required height.

Note that (14) is a matter of construction.

Further, FIGS. 10 to 14 show other embodiments of corner parts constructed by the method according to the present invention, and FIGS. 10 and 11 show the pro-7 bending angle (α). 40°
When the corner angle (β) is 90°,
Fig. 12 shows a case where both block bending angles (α) are 40° and a corner angle (β) is 100°, and Fig. 13 shows a case where both block bending angles (α) are 50° and a corner angle (
β) is set to 80°, and FIG. 14 shows a case where the length l of the corner side is increased by changing the main body blocks, etc.

As described above, the retaining wall corner construction method according to the present invention has the following effects.

(All the 11 blocks are connected in a sutured state by suture longitudinal reinforcing bars, so separation between the blocks can be prevented.

And the resistance surface (
The resistance in 9) effectively prevents floating and separation of the wall forming part, and also fixes II! The tip αω of +4) concentrates the weight of the block itself and bites further into the construction surface, preventing part of the retaining wall corner from separating and collapsing.

(2) A desired corner angle can be easily obtained by arbitrarily selecting the bending angle of the corner block.

[Brief explanation of drawings]

Fig. 1 is a plan view of a corner block used in the method for partially constructing a retaining wall corner according to the present invention, Fig. 2 is a side view of the same, Fig. 3 and Fig. 4 are Fig. 2 line 1-I, ■-■ cross section by line,
Fig. 5 is a plan view of the main block, Fig. 6 is a side view of the same, Figs. 7 to 9 are explanatory diagrams of the arrangement of the blocks used for constructing a part of the retaining wall corner, and gJIO figures to Fig. 14 are according to the present invention. It is an explanatory view of another example of a retaining wall corner part constructed by the method. In the figure, (1); corner block (2); wall forming part (3);
); Retaining part (4); Fixed part (5); Vertical reinforcing bar hole (6); Vertical reinforcing bar hole (7); Bending extension φ
Part (8); Vertical reinforcing bar hole (9); Fixed part
(20) ;Body block patent applicant Masu Tegori (two idiots) Agent for Terrada Sangyo Co., Ltd. Figure 1 1n Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. A retaining portion extending perpendicularly to the wall forming portion is provided at the back of the wall forming portion, a fixing portion is provided at the extending end of the retaining portion, and an arbitrary angle with the wall forming portion is provided at one end of the wall forming portion. At least one plate-shaped corner block having a longitudinal reinforcing bar hole is provided at each step in a part of the corner at the base end of the fixing part, the retaining part, and the base end of the bending extension part. It is characterized by stacking the reinforcing bars alternately in the opposite direction while aligning all the longitudinal reinforcing holes, and compressing the construction into the dendritic space formed between each retaining part and fixed part behind the wall forming part. A method for partially constructing a retaining wall corner using plate-shaped corner blocks.