JPS60173223A - Construction of concrete wall - Google Patents

Abstract

PURPOSE:To construct a strongly integrated concrete wall by a method in which a water-permeable panel to be buried is fixed to the back of a reinforcing bar arrangement by fixers, and fitting metals on the back of concrete blocks stacked up on the surface are fixed with the reinforcing bar arrangement. CONSTITUTION:Concrete blocks A are vertically stacked up in a coursed masonry manner on a foundation concrete 2, a water-permeable panel 4 to be buried is fixed to the reinforcing bar arrangement 9 in the back side by means of a fixer 10, and broken stones 5 are embedded on the back side. One ends of two reinforcements 8 are fixed to fitting metals buried in the recession 6 of the stay 3 of the blocks A, and the other ends are fixed to the arrangement 9. The blocks A for each stage are stacked up and binding operation of the reinforcements 8 is made in a repeated manner to form the space of a retaining wall. Concrete is then placed into the space thus formed and the reinforcing bar arrangement 9 is buried to construct the retaining wall.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of constructing a road retaining wall, a river bank, and a wall.

In Kanchi blocks for civil engineering used when constructing road retaining walls, blocks that have been formed with a retaining part that gradually becomes smaller on the back than the front surface are filled with supporting stones to keep the front parallel to each other9. In addition to requiring the placement of a back formwork when pouring concrete, there was a drawback in that stacking was only possible after the concrete had hardened one by one.

In order to shorten the time and reduce the cost of the conventional construction method, by using self-supporting blocks whose front and back surfaces are approximately the same area, the required number of blocks can be stacked at once without waiting for the concrete to harden one by one. It can be stacked, and the back formwork can be placed even when pouring concrete.
Since the concrete can be poured all at once, construction efficiency is further increased and costs can be significantly streamlined.

However, it is fine if the design thickness of the retaining wall is the same as the product length of the block, but if it is subject to large earth pressure or water pressure, the lower edge of the retaining wall must have great strength, so the maximum pressure When pouring backing concrete on the back of the block to thicken the wall thickness to withstand it, since the front and back areas are the same, the backing concrete and the backing concrete are completely cut off at the back of the block, and the concrete is Faults can occur when the walls are not joined together, and as a result, the retaining wall cannot have the strength it was designed for, and the wall itself may be at risk due to earthquakes or vibrations, causing unexpected damage.

Therefore, if the retaining wall thickness is greater than the retaining length of the block, if a block with a longer retaining wall is manufactured each time, problems arise in terms of duplication of manufacturing investment and quality control of product inventory.

In the construction method of the present invention, in order to make it possible to completely construct a strong retaining wall using free-standing blocks of the same standard even when the retaining wall thickness differs, connecting fittings are buried in the back of the blocks and buried at the time of construction. It is fixed to the metal fittings using a material with high tensile strength such as Metal 9 synthetic resin, and the other end is tied to the placed reinforcing bars, or it is buried in backfilling soil and compacted to integrate with backfilling concrete or buried soil. By constructing a strong wall, the drawbacks of saw rL-E with respect to earthquakes and vibrations were overcome.

Next, an example will be described with reference to figures.

Figure 1 shows the construction of a conventional retaining wall using self-supporting blocks. Figure 2 shows the construction status of a vertical reinforced concrete IJ = retaining wall for retaining earth, where a self-supporting concrete block A is constructed vertically in front of the ground 1 on top of the foundation concrete 2 as shown in Figure 2. A water-permeable embedding panel 4 is fixed to the reinforcing bars 9 with a connecting fixture 10 and installed vertically on the back side, and is backfilled with split stone 5 on the back side to prevent the panel 4 from falling over.

First, one end of the two connecting reinforcing members 8 is fixed to the mounting bracket 7 buried in the recess 6 of the free-standing block support 3 stacked on the foundation block, and the other end is fixed. : As shown in Fig. 2, each is tied to the reinforcing bars 9 placed for reinforced concrete.

Thereafter, the blocks of each stage are stacked and the connecting reinforcement work is repeated to form the space of the retaining wall to be constructed.

Next, in order to pour concrete into the formed space, the space on the side 13 is closed with elastite, etc., and then concrete is filled from the top opening to connect the block stacking space and the reinforcing bar placement space into one. Build a strong retaining wall.

Since a recess 6 is provided on the back of the block, the backing concrete digs into the back of the block and the block and the backing concrete poured on the back are integrated and connected, so there is no fault and the back of the block is hollow. Since we use an embedded water-permeable panel on the back side that acts as a frame, there is no need to remove the formwork after the concrete has hardened, so the pouring work can be greatly streamlined.Concrete pouring is done downwards. It is preferable to pour the concrete above before the concrete poured on the wall hardens. In this example, we have explained the method of constructing a reinforced concrete wall by laminating free-standing blocks.
As shown in Fig. g6, one end of the connecting reinforcing material such as an endless loop is fixed to the burial metal A on the back side, and the other end is backfilled by attaching an anchor plate and rolling pressure using the frictional force of the earth and sand. Build a retaining wall without repeating what you have to do, or
．． As shown in Figure 8, the backs of decorative blocks with decorative bottoms facing each other and connecting reinforcing bars are connected to form a space.
This invention can be applied in various ways without changing its gist, such as by filling the space with concrete to construct a structural wall.

[Brief explanation of the drawing]

Figure 1 is a conventional construction drawing, Figure 2 is a partial longitudinal side view showing an intermediate construction process using this construction method, Figure 3 is a detailed block diagram, Figure 4 is a completed construction diagram, and Figures 5 and 6. The figures are a partially longitudinal side view and a plan view of another embodiment, and FIG. 7.8 is a side view and a plan view using decorative blocks. A...Self-supporting project, B...earth and sand, C
... Concrete, 4 ... Back panel, 6 ... Block retaining section, 11 ... Endless loose, 12 ... (linker. Patent Applicant: Chiyoda Giken Kogyo Co., Ltd. 16) Side 'lf: 1 Figure 4-l Today's 3rd country 421z /1 #δ) Kaichi Cary t+'

Claims (2)

[Claims] (1) In a method of constructing a concrete wall by stacking blocks formed by integrally forming a square main plate with a back plate that is the same as the main plate via a connecting part, reinforcement is added to the connecting fittings provided on the back of the concrete. A method for constructing a concrete wall characterized by joining one end of the block and burying the other end in concrete or embankment filling the space behind the block. (2) A method of constructing a concrete wall, which is characterized in that the connecting fittings of opposing hooks are connected with a reinforcing material in the construction method described in Paragraph 1 of the Shimizu patent scope, and the formed space is filled with concrete.