JPH0614225U - Precast concrete block for wall - Google Patents

Abstract

(57) [Summary] [Purpose] The scaffolding and formwork of the concrete structure are omitted in the block to form a part of the structure, and the block is easily and securely installed and fixed to obtain the aesthetic appearance of the structure. . [Structure] Precast concrete block for slope wall 1
Is provided with a flat plate-shaped front surface portion 2, a cut groove portion 4 provided at both right and left end portions of the rear surface portion 3, a fixing metal fitting 5, a lift anchor metal fitting 6, and a stopper metal fitting 7. [Effect] The blocks installed in parallel on the slope of the structure become water-tight by pouring concrete on site by the scoring groove on the rear surface. Further, the fixing metal fitting provided on the rear surface portion and the fixing hook already embedded in the structure body are connected and fixed by using the iron rod as an arm, so that the structure is firmly integrated with the structure body. Since the concrete on site is poured there, the block and the main body are completely united. Therefore, it can be used as a single block for any legal gradient, and any front face makeup is possible, which is excellent in labor saving, rationalization, and economy.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention replaces the conventional concrete dam used to build concrete structures such as concrete dams and concrete retaining walls, and replaces it with a mold that allows concrete to be placed without using the conventional form. It relates to precast concrete blocks for slope walls used.

[0002]

[Prior art]

 Conventionally, when installing concrete structures such as erosion control dams and retaining walls, wooden or steel formwork was assembled locally at a certain shape and size and firmly fixed, and ready-mixed concrete was placed in this formwork. The mold had to be poured in and the mold had been removed after reaching the specified strength. In addition, as this type of block, the shape and size of the block can be changed by the slope of the structure, the one that requires complicated fixing and high skill, and the one in which the block and the structure are cast on site. It is known that it is not united in terms of strength.

[0003]

[Issues to be solved by the device]

 Among the ones mentioned in the prior art, in the above, the conventional construction method consists of assembling the formwork with a predetermined shape and size on site, and securing the predetermined strength with scaffold logs and formwork reinforcement, It is not suitable for labor saving, and it is difficult to shorten the construction period, because concrete is poured into the formwork and the formwork is removed after the concrete hardens and reaches a predetermined strength. Met. In addition, since concrete is cast on site, avatars, mamiters, etc. are formed on the surface, which causes surface troubles on the structure after removing the formwork, which is aesthetically problematic. Furthermore, since there are many types of work and processes, there are many types of jobs for workers, which lengthens the construction period and raises construction costs.

Further, in the following description, the shape and size of the structure vary depending on the change in the slope of the structure, and it is necessary to sort and stock the block yard according to the slope of the structure. It was complicated. Moreover, when the block is installed in a predetermined position of the structure, the work is troublesome, and further, the integration of the block and the cast-in-place concrete remains questionable at the time of hardening, and the block becomes a part of the structure. There was a problem in strength.

The present invention has been made in order to eliminate such problems and drawbacks of the prior art, and can be installed accurately by a simple process and work, and can be securely fixed to the block and the concrete of the main body of the structure. We provide precast concrete blocks for slope walls that can be integrated, reduce the work types, save labor in the process, rationalize, shorten the construction period, aesthetically improve the concrete structure surface and reduce the construction cost. That is the purpose.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, a precast concrete block for slope wall according to the present invention comprises a substantially cubic block body (1) having a plate-shaped front surface portion (2) which is a surface of a structure and a rear surface portion (3). In order to fix the left and right sides of the block body (1) and to integrate the cast-in-place concrete with the block body (1), the cut groove portions (4) provided at the left and right ends of the rear surface portion (3) and the block Install the main body (1) at a predetermined position of the structure, fix it to the structure through the iron rod, and in order to integrate it with the cast-in-place concrete, the fixture (5) embedded in the rear surface (3) and In order to suspend the block body (1) with a heavy machine and move it to a predetermined position in the structure, the lift anchor metal fitting (6) embedded in the upper surface of the block body (1) and the block body (1) are installed. When you give Is constituted by the after reliably slope is provided to match the time of hanging grated Te surface (3) a stopper bracket going out of thrust along the surface (7).

[0007]

[Action]

 With the above configuration, the precast concrete block for slope walls is brought into the site, suspended on structures such as dams and retaining walls, and installed at the prescribed slope on the planned slope at the prescribed position, and then on the rear surface. It is connected and fixed through several fixed metal fittings that are embedded and hooks and iron bars that are pre-embedded in the structure body. When the precast concrete blocks for slope walls are fixed in succession in the length direction of the structure and the wall for the formwork is constructed by it, in-situ concrete is poured into them. As a result, the precast concrete block for the slope wall becomes a part of the structure, and the formwork work and process on site are reduced.

[0008]

【Example】

 Examples will be described with reference to the drawings. 1 to 3, which is a block body, a precast concrete block 1 for a slope wall according to the present invention comprises a front surface portion 2 which is a wall surface of a planned structure, and a structure after contacting with in-situ cast concrete of the structure. The face part 3, the precast concrete block for slope walls 1 installed in parallel along the slope of the structure, and the scoring groove part 4 required for water-tightening by integrating the cast-in-place concrete. Fixing hardware 5 embedded in the rear surface part 3 for fixing the structure through the fixing hook embedded in the installed concrete and the arm such as the iron rod, and the precast for the suspended wall On the top of the precast concrete block 1 for slope walls and the stopper metal fittings 7 for accurately mounting the concrete block 1 in the specified position and setting it to the prescribed legal gradient. Because filled-in transportation, is formed by the lift anchor 6 is a bracket for mounting. This precast concrete block 1 for slope walls is molded by pouring concrete into a formwork in advance at a factory or on site.

Next, a procedure for constructing a structure by the construction of the precast concrete block 1 for the slope wall is shown in FIGS. 4 to 6. In FIG. 4, a foundation concrete 10 serving as a foundation for a structure to be constructed and a work stand for an off-wall is placed, and one or more fixing foots 9 are embedded in a predetermined position before it is solidified. After the basic concrete 10 reaches a predetermined strength, the precast concrete block 1 for slope walls is installed. To install the precast concrete block 1 for slope walls, first connect it to the lift anchor metal fittings 6 provided on the upper surface of the precast concrete block 1 for slope walls with a heavy machine 12 such as a crane and lift it up, and then install it on the foundation of the concrete foundation 10. . When the front surface 2 is installed at the predetermined position and at the planned slope, the fixing metal fitting 5 and the fixing hook 9 embedded in the rear surface 3 are fixed by welding or screws with the connecting iron bar 8. After the installation and fixing are completed, on-site concrete 11 is poured as shown in FIGS. In this case, as shown in FIG. 6, the on-site concrete 11 is sufficiently filled in the scoring grooves (4) provided at the left and right ends of the precast concrete block 1 for the slope wall.

Thereafter, the assembling is sequentially performed to a predetermined height. For the second and subsequent steps of the precast concrete block 1 for the legal wall, the precast concrete block 1 for the legal wall, which is suspended by the stopper metal fittings 7 in the previous stage, can be installed easily, quickly, and accurately with the rear surface portion 3 aligned. The surface of part 2 and the normal gradient are also matched.

In implementing the present invention, the following is possible within the scope of the present invention. (A) The front surface portion 2 of the precast concrete block 1 for the slope wall, which is the surface of the structure, can be a flat surface or a decorative surface in which false stone patterns or natural stones are embedded. (B) The fixing metal fitting 5 embedded in the rear surface portion 3 can be increased or decreased as necessary. (C) The stopper fitting 7 may be inserted into the concrete on site at the site. It may be made of precast concrete integrated with the precast concrete block 1 for slope walls. (D) The shape, size, and dimensions of the precast concrete block 1 for slope walls can be appropriately selected.

[0012]

[Effect of device]

 The effects related to the present invention are as follows. (B) Formwork and scaffolding at the time of concrete structure construction becomes unnecessary. (B) A single block shape that can handle any gradient and is highly versatile. (C) The block cross section is included in the structure cross section and becomes the effective inner cross section of the structure. (D) The block installation and fixing work should be simple and accurate. (E) The front part of the block can be used for the appearance of the structure surface. (F) The construction period and construction cost should be reduced.

[Brief description of drawings]

FIG. 1 is a front view and a rear view of a block of the present invention.

FIG. 2 is a sectional view of the block of the present invention.

FIG. 3 is a side view of the block of the present invention.

FIG. 4 is an installation sectional view of the block of the present invention.

FIG. 5 is an assembled sectional view of the block of the present invention.

FIG. 6 is a sectional view showing the installation and assembly of the block of the present invention.

[Explanation of symbols]

 1 Precast concrete for slope walls 2 Front part 3 Rear part 4 Cutting groove part 5 Fixing metal fittings 6 Lift anchor metal fittings 7 Stopper metal fittings 8 Connecting rods 9 Fixing hooks 10 Basic concrete 11 Concrete cast on site 12 Heavy equipment for installation

Claims (1)

[Scope of utility model registration request] 1. A cubic precast concrete block 1 (b) A flat plate-shaped front surface portion 2 of the precast concrete block 1 (c) A rear surface portion 3 of the precast concrete block 1 (d) Left and right ends of the rear surface portion 3 (4) Fixing metal fitting 5 embedded in the rear surface portion 3 (f) Stopper metal fitting 7 protruding from the rear surface portion 3 along the surface (g) Embedded in the upper surface of the precast concrete block 1 Lift anchor metal fitting 6 Precast concrete block for slope wall constructed as above