JPS61117330A - Method of forming top of block retaining wall - Google Patents

Abstract

PURPOSE:To produce a joint pattern formed with contacts between blocks at a top, by a method wherein chamfer strips, positioned in conformity to the joint pattern of blocks, are secured to a plate, which is brought into contact with the side at the uppermost stage of the blocks piled up in a uncoursed masonry manner, and concrete is poured. CONSTITUTION:Blocks 11 are piled up in an uncoarsed masonry manner on a soil surface 21, chamfer strips 4 are framed in conformity to a joint pattern 12 formed with contact parts between the blocks 11, and the chamfer strips are secured to a flat 3. The flat 3, to which the chamfer strips 4 are attached, is installed to a block retaining wall 1 in a manner to be brought into contact with the sides 13 at the uppermost stage of the blocks 11 piled up in an uncoursed masonry manner. Concrete 31 is poured between the plate 3 and a soil surface 21 to form a top 2. The chamfer strips 4 causes a pattern to be produced on the finish surface of the concrete 31 in conformity to a joint pattern 12 formed with contacts between the blocks.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is a block soil that is installed at the ninth point of reinforcement of earth and sand surfaces such as hills or river banks! In particular, regarding the top construction method of
This relates to a crest construction method that forms a seam pattern on the slope surface similar to that of the abutting portions of machi blocks.

[Conventional technology]

Figures 7 and 8 show the top of a block earth retaining wall formed by the conventional construction method. In the figure, (c) is a block earth retaining wall, (7+ is a machi block, 4 is a machi block - seam pattern that occurs at the mutual contact area. Ru Kasaishi, 4 is Ii4
Department.

Conventionally, the top end (74) of the block earth retaining wall (2) is manufactured according to the standard as shown in Fig. 7. As shown in the figure, the general method is to finish the entire crown part 4 flatly with cast-in-place concrete.

[Problem that the invention seeks to solve]

In the above two crown ff4 construction methods, capstone (2)
If the upper surface of the crown casing is sloped, the shape of each capstone (2) will be different as shown by the chain line in Fig. was there.

On the other hand, the method of finishing the entire crown with concrete poured on-site has the problem that the seam pattern (3) does not appear on the finished surface, resulting in a lack of control and beauty, and the appearance of the structure being cheap.

The present invention has been made in view of the above-mentioned problems, and its purpose is to provide a block retaining structure that can form a pattern on the slope surface that corresponds to the joint pattern of machi blocks, regardless of whether or not the top slopes. This is to provide a method for constructing the top of a wall.

[Means for solving problems]

The gist of the present invention, which solves the above-mentioned problems, is to solve the above-mentioned problems on earth and sand surfaces such as hills and river banks. I) K
2) In the slope construction method, the above-mentioned machi block (b)
Assemble the face pieces (4), <41... into a desired pattern shape so as to correspond to the seam pattern (6) formed at the mutually abutting portions, and then assemble the assembled face pieces (4), (
4Y... with nails (5) or screws, etc., and block the flat plate (3) so that the face wood (4) is in contact with the top side surface (2) of the machi block (b), which is stacked in a valley. Earth retaining wall (1) Ic installed, flat plate (3) and the earth and sand surface (
Method for constructing the crown of a block earth retaining wall by pouring IIIK concrete (2) with b) and forming the crown (2) using the facing wood (4) and the flat plate (3) with C41... as a template. It is in.

[Effect]

The flat plate (3) forms a slope with concrete OIK at the top (2), and the face wood (4), (4)'... is the finished surface of the concrete (2), and the monchi block (b) is mutually attached. A pattern corresponding to the fillet joint surface padan (2) is produced at the abutting portion of the joint.

〔Example〕

1 to 6 show one embodiment of the present invention. In the figure, Yu is a nine-nail hole drilled into Mengi (4) + ('γ...), and (B) is a chestnut stone buried between the flat plate (3) and the earth and sand surface (2).

The finishing of the slope of the crown (2) according to the present invention is carried out as follows.

First, the block dome shown in Figure 2! ! According to the shape of the top side surface (to) of (1) and the top surface dimension of the top (2), as shown in Fig. 3, attach the facing wood (4) to the flat plate (3) (4γ・
Cast...

In this case, it is preferable that the cross-sectional shape of the prefabricated face wood (4) l (41...
A combination of pentagons as shown in FIG. 5 can be considered. In addition, (Kyo) and (4b) in the figure are Omenki (4), (
A fitting hole and a fitting protrusion formed at the end of 4r... (4
/) is the side of the face tree (4), (4γ...).

The 4th position is an abbreviated character and a roughly T-shaped mengi (4), (4
This shows a case where γ... is combined. A fitting hole (41) is formed at the end of the substantially T-shaped face piece (4), and a fitting protrusion (4b) is provided at the 4th part of the substantially T-shaped face piece (4γ). The fitting hole (41) and the fitting protrusion (4b)
The shape is as shown in FIG. 4 (Bl, Gl and 0), and when assembled, the fitting hole (41) and the fitting protrusion (4b) are fitted to form an abbreviated shape and a substantially T-shape. Mengi (4)
), (4γ is cut to the desired length and fixed to the flat plate (3) with nails (5) or screws.

Figure 5 shows the case where pentagonal face pieces (47') are combined.When attaching the pentagonal face pieces (47') to the flat plate (3), the sides (4t) of each are brought into contact with each other. Since it is attached in the state, the side part (the four cross-sectional shapes are formed to be a half triangle of the isosceles triangle which is the cross-sectional shape of the other part). (Fix 41 in the above-mentioned state with a flat plate (3), K nails (5), and dowel screws, etc.).

As described above, the template for construction of the top (2) is made, but the shapes and combinations of each member of the prefabricated face wood (4) and (4γ) are based on the above two examples. The present invention is not limited to this, and other shapes and combinations may be used as long as similar effects can be obtained.

Next, the above-mentioned face wood (4), (4γ... attached flat plate (3)
) as shown in No. 611i1, the top side surface (2) of the machi block (b), and the K-face tree (4).

(It is installed so that the
9 is poured, the upper surface is smoothed by an appropriate method and the concrete (b) is hardened, and then the flat plate (3) is removed.
1st r! As shown in AK, a top end (2) with a seam pattern (2) is formed.

In the above series of crown (2) construction work, Machi Block (B) Table 11KI! If the + design is decorated, measure a piece of plate with a shape corresponding to the above 1!! However, by performing the same operations as described above, the finished top (2) K will also have a concave shape similar to that of the machi block (b).

[Effects of 1ABA] As mentioned above, according to this FIAK, the top of the block retaining wall and the top of the machi block @
Since it is formed to match the surface, it is possible to create a groove that corresponds to any situation, such as when the top is sloped.Since the face wood is attached to a flat plate, the seam pattern of the top slope after finishing can be easily adjusted. It is possible to form a top having an overall controlled beauty at a low cost.

[Brief explanation of the drawing]

Fig. 1 is a front view of a block earth retaining wall with a crown formed using the crown construction method of the present invention, Fig. 2 is a positive IF diagram showing the block earth retaining wall before the crown is formed, and Fig. 3 is a top view of the block earth retaining wall. Perspective d showing the flat plate with facing wood used during edge construction, @Figure 4 (5
) is a perspective view showing an example of the shape of the prefabricated face wood and how to assemble it, FIG. Cross-sectional view at the crossing line, Figure 4q
Figure 5 is a partially cutaway front view of Figure 4 (4), and Figure 5 is a perspective view showing other examples of the shape and combination of prefabricated face plates. The cross-sectional view of the earth retaining wall, FIGS. 7 and 8 are front views showing a block earth retaining wall having a crown formed using a conventional crown construction method.

Claims (1)

[Claims] 1) In the construction method for the top slope of a block earth retaining wall formed by stacking machi blocks on the earth and sand surface of a hill or river, it corresponds to the seam pattern formed at the contact part of the machi blocks. Assemble the mengi into a desired pattern shape, fix the prefabricated mengi with nails or screws, and place the flat plate in such a way that the mengi come into contact with the top side of the stacked machi block. A method for constructing the crown of a block earth retaining wall, which comprises installing the block on the earth retaining wall, pouring concrete between the flat plate and the earth and sand surface, and forming the crown using a flat plate with face wood as a template.