JP6934151B2 - Construction method of civil engineering structure, and civil engineering construction block and fixing member used in the construction method. - Google Patents

Description

The present invention relates to a method for constructing a civil engineering structure, and a civil engineering construction block and a fixing member used in the construction method.

Conventionally, a method of stacking concrete civil engineering construction blocks (construction materials) to construct a civil engineering structure such as a retaining wall or a revetment has been known. Specifically, in a certain construction section of the construction site, civil engineering construction blocks are sequentially installed from the lower stage to a desired height, and predetermined backfill materials (for example, body-filled concrete, backfill concrete, earth and sand, crushed stone) are installed. Etc.) are repeatedly filled to construct a civil engineering structure.

Construction materials used in such civil engineering structures are typically integrally constructed by connecting a plurality of wall panels in a transverse direction via reinforcing bars, and are integrally formed on the back surface of at least a part of these wall panels. The retaining pillars are integrally projected. Then, when the construction materials are stacked, the columns are installed so as to overlap each other (Patent Documents 1 and 2).

Further, in a civil engineering structure, it is necessary to manage the concrete to be filled in the back surface of the wall surface panel so as to have a desired thickness. For this reason, there has been proposed a construction material in which a position regulating member having a length corresponding to the thickness of concrete to be filled is provided on the back surface (Patent Document 3). When constructing a civil engineering structure, such a construction material is installed so that the end of the position regulating member abuts on the formwork, and a space of a desired thickness for filling concrete is provided on the back surface of the wall panel. Secure.

Japanese Patent No. 388830 Japanese Patent No. 3857291 Japanese Unexamined Patent Publication No. 2014-134006

In the construction of civil engineering structures, conventionally, in order to prevent the installed civil engineering construction blocks (construction materials) from moving before filling concrete, reinforcing bars are arranged on the back surface of the civil engineering construction blocks and welded together. A process was needed. While such a welding process requires a skilled welder to hit, it is a very complicated work, and there is a problem that the work cannot be performed when it rains, which is one of the obstacles in shortening the construction period. It was. For this reason, there is a problem that the construction cost increases in the conventional construction method in which welding is performed to fix the civil engineering construction block before filling with concrete.

Therefore, an object of the present invention is to provide a technique for efficiently and reliably installing a civil engineering construction block used for constructing a civil engineering structure.

Specifically, an object of the present invention is to provide a fixing member for stably installing a civil engineering construction block.

Another object of the present invention is to provide a method for constructing a civil engineering structure that does not require any welding work or allows a civil engineering construction block to be installed with a minimum of welding work.

The present invention for solving the above problems is configured to include the following invention-specific matters or technical features.

That is, the invention according to a certain viewpoint is a joint portion having a joint surface and the joint surface is configured to be joinable to the back surface of the civil engineering construction block, and a column connected to the joint portion on the opposite side of the joint surface. It is a fixing member including an engaging portion formed so that muscles can be engaged.

Here, the engaging portion is provided at a base portion connected to the joint portion, a wall portion rising from each of both edge portions of the base portion in a direction opposite to the joint surface, and an end portion of the wall portion. The claw portion, the wall portion, and the claw portion may form a space capable of receiving the pillar muscle.

Further, a plurality of the engaging portions may be provided along the direction corresponding to the long axis direction of the column bar.

Further, the wall portion and the claw portion may be formed in a curved shape.

Further, an invention according to a certain viewpoint is a civil engineering construction block used for constructing a civil engineering structure having a predetermined wall surface gradient, which is provided integrally with the wall surface panel and at least some back surfaces of the wall surface panel. The retaining column is provided with a fixing member provided on the back surface of the retaining column, and the fixing member has a joint surface, and a joint portion to be joined to the retaining column via the joining surface, and the said It is a civil engineering construction block including an engaging portion connected to a joint portion and configured to engage column bars on the opposite side of the joint surface.

Here, a plurality of the fixing members may be provided along the long axis direction of the column bar.

Further, the invention according to a certain viewpoint is a method of constructing a civil engineering structure having a predetermined wall surface gradient, in which a step of preparing at least one civil engineering construction block having a fixing member on the back surface and a step of following the predetermined wall surface gradient. In the process of installing a pillar bar of a predetermined length,
The civil engineering construction includes a step of installing at least one of the civil engineering construction blocks so as to form the predetermined wall surface gradient, and a step of filling the back surface of the installed at least one civil engineering structure with concrete. The step of installing the block is a method including a step of fitting the fixing member to the column bar.

Here, the step of installing the civil engineering construction block and the step of filling the concrete can be repeated.

According to the present invention, it is possible to provide a technique for efficiently and reliably installing a construction material used for constructing a civil engineering structure.

Specifically, according to the present invention, it is possible to provide a fixing member for stably fixing the construction material.

Further, according to the present invention, it is possible to provide a construction method of a civil engineering structure in which a construction material can be installed without requiring welding work at all or with a minimum welding work.

Other technical features, objectives, and effects or advantages of the present invention will be demonstrated by the following embodiments described with reference to the accompanying drawings.

It is a schematic side view which shows an example of the civil engineering structure which concerns on one Embodiment of this invention. It is a front view which shows an example of the civil engineering construction block which concerns on one Embodiment of this invention. It is a top view which shows an example of the civil engineering construction block which concerns on one Embodiment of this invention. It is a right side view which shows an example of the civil engineering construction block which concerns on one Embodiment of this invention. It is a back view which shows an example of the civil engineering construction block which concerns on one Embodiment of this invention. It is a front view which shows an example of the fixing member which concerns on one Embodiment of this invention. It is a top view which shows an example of the fixing member which concerns on one Embodiment of this invention. It is a top view which shows another example of the fixing member which concerns on one Embodiment of this invention. It is a top view which shows another example of the fixing member which concerns on one Embodiment of this invention. It is a figure for demonstrating the attachment state of the fixing member which concerns on one Embodiment of this invention. It is a flowchart explaining the construction method of the civil engineering structure which concerns on one Embodiment of this invention. It is a figure for demonstrating the construction method of the civil engineering structure which concerns on one Embodiment of this invention. It is a figure for demonstrating the construction method of the civil engineering structure which concerns on one Embodiment of this invention. It is a figure for demonstrating the construction method of the civil engineering structure which concerns on one Embodiment of this invention. It is a figure for demonstrating the construction method of the civil engineering structure which concerns on one Embodiment of this invention. It is a figure for demonstrating the construction method of the civil engineering structure which concerns on one Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below are merely examples, and there is no intention of excluding the application of various modifications and techniques not specified below. The present invention can be implemented with various modifications (for example, combining each embodiment) without departing from the spirit of the present invention. Further, in the description of the following drawings, the same or similar parts are represented by the same or similar reference numerals. The drawings are schematic and do not necessarily match the actual dimensions and ratios. Even between drawings, parts with different dimensional relationships and ratios may be included.

FIG. 1 is a schematic side view showing an example of a civil engineering structure according to an embodiment of the present invention. As shown in the figure, the civil engineering structure 1 configured as a retaining wall is a structure forming a retaining wall, a revetment, etc., and a plurality of civil engineering construction blocks 20 are stacked on the foundation 10. Will be built. In the civil engineering structure 1 of this example, the body-filling concrete or the back-filling concrete 40 is cast on the back surface of the civil engineering construction block 20 installed along the backfilling material 30 having a predetermined legal gradient, and the uppermost portion thereof. The top concrete 50 is placed in the building. At the time of construction, the civil engineering construction block 20 is connected to a pillar bar 70 arranged in front of the backfill material 30 via a fixing member 60 of the civil engineering construction block 20, whereby the civil engineering construction block 20 is stably installed. Is possible. Strictly speaking, the backfill concrete and the backfill concrete are different from each other, but in the present specification, these are simply referred to as the backfill concrete 40 unless there is a particular significance in distinguishing between the two.

The foundation 10 is constructed by, for example, laying a foundation crushed stone 11 on a ground 80 that has been dug in the floor, and placing a foundation concrete 12 on the foundation crushed stone 11. The upper end of the foundation concrete 12 has, for example, an inclined surface 12a inclined toward the slope 82 side, whereby the civil engineering construction blocks 20 can be stacked so as to form a predetermined wall surface gradient. ..

The civil engineering construction block 20 is, for example, a construction material including a concrete block body having a thickness sufficient to withstand as a revetment or the like. The shape and size of the civil engineering block 20 can be appropriately selected. The surface of the civil engineering block 20 (that is, the surface constituting the wall surface) may be formed, for example, apparently as if a plurality of artificial stone blocks are provided, or may be formed with a geometric texture. good. Alternatively, for example, natural stone may be embedded in the surface thereof so as to be more in harmony with the natural environment. The civil engineering construction block 20 of this example is configured by integrally connecting a plurality of concrete blocks. Further, the civil engineering construction block 20 of this example includes a fixing member 60 for connecting with the column bar 70. The details of the civil engineering construction block 20 will be described later.

The column bar 70 is, for example, an iron bar for reinforcing the backfill concrete 40 to be cast. In this example, the civil engineering construction block 20 is attached to the column bar 70 via the fixing member 60. One end of the column bar 70 is fixed in the foundation concrete 12, for example. At this time, the column bar 70 may be fixed by drilling a hole in the placed foundation concrete 12 at one end to which an anchor (not shown) is attached. Alternatively, the column bar 70 may be fixed by inserting one end into a mounting hole formed by embedding an insert nut in the foundation concrete 12, or the concrete constituting the foundation concrete 12 is uncured. At the stage, it may be fixed by embedding one end thereof. Further, the column bars 70 can be connected to each other via, for example, a high nut or a connecting nut, and can be raised to a predetermined height along the normal gradient of the backfilling member 30. Further, a spacer 72 may be attached to the column bar 70 in order to secure the cover thickness of the backfill concrete 40. Any cross-sectional shape of the column bar 70 can be selected, and the surface may have an uneven shape in order to increase the concrete adhesion rate.

The fixing member 60 is a member that connects the civil engineering construction block 20 and the column bar 70. The fixing member 60 is made of, for example, a metal such as iron or a stainless alloy, but is not limited to this, and may be made of, for example, a fiber reinforced resin. The fixing member 60 is attached in advance to, for example, the back surface of the civil engineering construction block 20. At the time of construction, the civil engineering construction block 20 is temporarily fixed to the column bar 70 by the fixing member 60, thereby improving the self-supporting stability of the civil engineering construction block 20 and ensuring the integrity with the filled backfill concrete 40. can do. Details of the fixing member 60 will be described later.

The backfill concrete 40 is concrete cast in the back space of the installed civil engineering construction block 20, that is, in the space formed between the back surface of the civil engineering construction block 20 and the front surface of the backfill material 30. When placing the backfill concrete 40, for example, a punching form 90 as shown in FIG. 5 is arranged on the front surface of the backfill material 30.

FIG. 2 is a diagram showing an example of a civil engineering construction block according to an embodiment of the present invention. Specifically, FIG. 2A is a front view of the civil engineering construction block, and FIG. 2B is a plan view thereof. FIG. C is a side view thereof, and FIG. D is a rear view thereof. As shown in these figures, the civil engineering construction block 20 includes, for example, a panel connecting body 21, a retaining column 22, and a fixing member 60. Note that FIG. 2D shows a state in which the fixing member 60 is removed.

The panel connecting body 21 includes a wall surface panel 23, a connecting member 24, and a fixing anchor 25. The panel connecting body 21 is formed, for example, by connecting five wall surface panels 23 in the transverse direction via a connecting member 24.

The wall panel 23 may have an uneven texture on its surface, for example, in harmony with the natural environment. For example, the wall panel 23 can be a concrete block formed in a pseudo-stone shape. Alternatively, the wall panel 23 may have a geometric texture formed on it. The size of the wall surface panel 23 is, for example, about 250 mm in length, about 400 mm in width, and about 100 mm in thickness.

As shown in FIG. 2A, the connecting member 24 is, for example, an iron reinforcement that communicates the inside of the wall surface panels 23 arranged in a row and connects the wall surface panels 23 to each other. In this example, the five wall panels 23 are integrally connected by two parallel connecting members 24. With such a configuration, the series of wall surface panels 23 can be freely bent at the connecting portion to form a panel connecting body 21 having a curved portion. When forming such a panel connecting body 21, for example, a joint material is injected into the connecting portion.

The anchor 25 for fixing is, for example, an iron barb that extends rearward from the back surface of the panel connecting body 21. In this example, the anchor 25 for fixing is formed in an L-shape as a whole by bending the far end portion downward. The fixing anchor 25 can be attached to the wall panel 23 by any method. For example, the anchor 25 for fixing may be attached by embedding one end thereof in the back surface of the wall surface panel 23 when the concrete constituting the wall surface panel 23 is uncured. Alternatively, the anchor 25 for fixing may be attached by screwing one end thereof into a mounting hole formed by embedding an insert nut in the back surface of the wall surface panel 23. The fixing anchor 25 is provided, for example, on a wall surface panel 23 other than the wall surface panel 23 provided with the retaining pillar 22 described later.

As shown in FIGS. 2B and 2D, the retaining column 22 is a block body provided on a part of the wall surface panels 23 constituting the panel connecting body 21. In this example, it is provided on the back surface of the wall panel 23 located second from the left and right ends of the five wall panels 23. When the wall surface panel 23 is formed, the retaining column 22 is integrally formed with the wall surface panel 23 using concrete. The retaining column 22 has a height substantially the same as the height of the wall surface panel 23, and is recognized as a substantially prismatic portion as a whole, as if it protrudes rearward by a predetermined length from the back surface of the wall surface panel 23. The rearward protrusion length (that is, the depth length) of the retaining column 22 is, for example, about 250 mm, and is set to be longer than the extension length of the fixing anchor 25.

Further, as shown in FIG. 2D, a mounting hole 26 for mounting the fixing member 60 is formed on the back surface of the retaining column 22. An insert nut (not shown) into which a resin cylinder (for example, made of ABS resin) (not shown) is fitted is embedded in the mounting hole 26, for example. The resin cylinder and the insert nut may be embedded in the retaining column 22 when the retaining column 22 and the wall surface panel 23 are integrally molded with concrete in order to arrange the resin cylinder and the insert nut with high positional accuracy.

Further, the upper surface and the lower surface of the retaining column 22 may be provided with holes for fixing pins (not shown). The holes of the fixing pins are used for stacking the civil engineering building blocks 20 so as to form a predetermined wall surface gradient. Specifically, one end of a fixing pin (not shown) is inserted into a hole for a fixing pin provided on the upper surface of the retaining pillar 22 of the civil engineering construction block 20. Then, when another civil engineering construction block 20 is stacked on the civil engineering construction block 20, the other end of the above-mentioned fixing pin is inserted into the hole for the fixing pin provided on the bottom surface of the retaining column 22. do. By doing so, the civil engineering construction blocks 20 can be stacked so as to have a desired wall surface gradient. It should be noted that a plurality of holes for the fixing pin may be provided corresponding to the wall surface gradient of the civil engineering construction block 20, and may be used properly according to the desired wall surface gradient of the civil engineering construction block 20.

The fixing member 60 is attached to the back surface of the retaining column 22 as shown in FIGS. 2B and 2C. Details of the fixing member 60 will be described later.

FIG. 3 is a diagram showing an example of a fixing member according to an embodiment of the present invention. Specifically, FIG. A is a front view of the fixing member, and FIG. B is a plan view thereof. As shown in these figures, the fixing member 60 includes, for example, a joint portion 61 and an engaging portion 62, and is formed symmetrically with respect to the virtual axis a corresponding to the long axis direction of the column bar 70. Will be done. The fixing member 60 is typically a metal member such as iron or a stainless alloy, but is not limited to this, and may be a fiber reinforced resin member. For example, in the case of the iron fixing member 60, the fixing member 60 is formed by punching from an iron plate having a predetermined thickness into a plate material having a predetermined shape by punching, and further forming an engaging portion 62 by bending. It is made.

The joint portion 61 has a joint surface 61a, and is, for example, a portion that is symmetrically formed in a plate shape with respect to the virtual axis a and is joined to the back surface of the civil engineering construction block 20. The joint portion 61 is formed with, for example, an opening 63 through which fasteners 27 (see FIG. 4) such as bolts are inserted on the left and right sides of the virtual shaft a. When the fixing member 60 is attached to the back surface of the civil engineering construction block 20, the opening 63 is positioned in the attachment hole 26 on the back surface of the civil engineering construction block 20. In this example, the openings 63 are formed in a slit shape to accommodate mounting holes 26 at various intervals.

The engaging portion 62 is a portion that engages with the column bar 70 and thereby connects the fixing member 60 and the column bar 70, and includes, for example, a base portion 64, a wall portion 65, and a claw portion 66. It is composed. The base portion 64 is, for example, a portion extending vertically from the joint portion 61 along the virtual axis a. Both side edges of the base portion 64 rise by a predetermined height to form the wall portion 65, and the tip of the wall portion 65 is bent in the direction toward the virtual axis a (that is, inward) to form the claw portion 66. Form. The engaging portion 62 makes it possible to receive the column bar 70 in the space thus formed, and the claw portion 66 prevents the received column bar 70 from being disengaged. In this example, the wall portion 65 to the claw portion 66 are formed in a straight line (see FIG. 3B), but the present invention is not limited to this. For example, as shown in FIG. 3C, the wall portion 65 may be formed so that the space for receiving the column bar 70 is curved. Alternatively, as shown in FIG. 3D, the wall portion 65 may be formed on a curved surface, and the tip of the claw portion 66 may be formed so as to be folded back and spread outward.

FIG. 4 is a diagram for explaining an attached state of the fixing member according to the embodiment of the present invention. As shown in the figure, the fixing member 60 is joined via a fastener 27 by joining the joint surface 61a to the back surface of the retaining column 22 of the civil engineering construction block 20. As a result, the fixing member 60 is integrated with the civil engineering construction block 20 to form a part of the civil engineering construction block 20. In this case, the engaging portion 62 is positioned so as to face the rear of the retaining column 22. In this state, when the engaging portion 62 is pressed against the column bar 70, the wall portion 65 bends outward to receive and hold the column bar 70, whereby the fixing member 60 becomes the civil engineering construction block 20. It connects with the column bar 70.

In the above example, one fixing member 60 is attached to one retaining column 22 so as to be connected to the column bar 70, but the present invention is not limited to this, and one retaining column is not limited to this. A plurality of fixing members 60 may be attached to the 22 and connected to the column bar 70.

Next, a method of constructing a civil engineering structure using the civil engineering construction block of the present embodiment will be described. FIG. 5 is a flowchart illustrating a method of constructing a civil engineering structure according to an embodiment of the present invention. In this example, it is assumed that the civil engineering construction blocks 20 are stacked in a plurality of stages.

First, the foundation work for forming the foundation 10 is performed (S501). In this step, the foundation crushed stone 11 is laid on the ground 80 dug in the floor, and the foundation concrete 12 is placed on the foundation crushed stone 11. At this time, for example, one end of the column bar 70 is embedded and fixed in the foundation concrete 12.

Subsequently, the column bar 70 is raised to the required height (S502). FIG. 6 is a diagram illustrating this step. The column bar 70 is raised to a required height by connecting the bars using a high nut (not shown) at the end opposite to the end embedded in the foundation concrete 12. The rising height of the column bar 70 may be a height corresponding to the number of stages of the civil engineering construction blocks 20 to be stacked in S503, which will be described later, and it is not necessary to start up to the height finally required for the civil engineering structure 1.

Returning to FIG. 5, next, the civil engineering construction block 20 is stacked on the foundation concrete 12 to adjust the installation position, and the fixing member 60 is pressed against the column bar 70 to be fitted, whereby the civil engineering construction block 20 is fitted into the column bar. It is connected to 70 (S503). FIG. 7 is a diagram illustrating this step. Here, the civil engineering construction blocks 20 are stacked in two stages on the inclined surface 12a of the foundation concrete 12, but the civil engineering construction blocks 20 may be stacked one by one, or the civil engineering construction blocks 20 may be stacked in more stages. When stacking the civil engineering construction blocks 20, one end of the fixing pin is inserted into the hole for the fixing pin provided on the upper surface of the retaining pillar 22 of the civil engineering construction block 20 on the lower stage side, and then the civil engineering construction block on the upper stage side. The other end of the above-mentioned fixing pin may be inserted into the hole for the fixing pin of 20. By doing so, the civil engineering construction blocks 20 can be stacked so as to have a desired wall surface gradient.

Returning to FIG. 5, next, the punching form 90 is installed (S504). FIG. 8 is a diagram illustrating this step. The punching form 90 is installed at a predetermined position between the column bar 70 and the slope 82. Further, a spacer 72 is arranged between the column bar 70 and the punching form 90 in order to secure the cover thickness of the backfill concrete 40. Prior to this step, a drainage pipe (not shown) may be installed.

Returning to FIG. 5, next, the backfill material 30 is laid between the slope 82 and the punching form 90 and compacted (S505). FIG. 9 is a diagram illustrating this step, in which a backfilling material 30 is filled between the slope 82 and the punching form 90.

Returning to FIG. 5, next, after filling the space between the civil engineering construction block 20 and the punching formwork 90 with concrete and placing the backfill concrete 40, the punching formwork 90 is removed (S506). FIG. 10 is a diagram for explaining this process, in which the backfill concrete 40 is cast. As shown in the figure, typically, the backfill concrete 40 is up to the extent that the anchor 25 for fixing the upper civil engineering construction block 20 is hidden (for example, about 2/3 of the height of the civil engineering construction block 20). Place.

Returning to FIG. 5, it is subsequently determined whether or not the stacking of the planned number of civil engineering construction blocks 20 has been completed (S507). If the stacking of the civil engineering construction blocks 20 having the planned number of stages has not been completed (No in S507), the process returns to S502 and the construction of the civil engineering structure 1 is continued. On the other hand, when the stacking of the civil engineering construction blocks 20 of the planned number of stages is completed (Yes in S507), the top concrete 50 is placed (S508), and the construction of the civil engineering structure 1 is completed.

Each of the above embodiments is an example for explaining the present invention, and is not intended to limit the present invention to these embodiments only. The present invention can be implemented in various forms as long as it does not deviate from the gist thereof.

For example, in the methods disclosed herein, steps, actions or functions may be performed in parallel or in a different order, as long as the results are not inconsistent. The steps, actions and functions described are provided merely as examples, and some of the steps, actions and functions can be omitted and combined with each other to the extent that they do not deviate from the gist of the invention. It may be one, or other steps, actions or functions may be added.

In addition, although various embodiments are disclosed in the present specification, specific features (technical matters) in one embodiment are added to other embodiments or other embodiments while being appropriately improved. It can be replaced with specific features in embodiments, such embodiments are also included in the gist of the invention.

The present invention can be widely used in the field of civil engineering.

1 ... Civil engineering structure 10 ... Foundation 11 ... Foundation crushed stone 12 ... Foundation concrete 12a ... Inclined surface 20 ... Civil engineering construction block 21 ... Panel connecting body 22 ... Reservoir 23 ... Wall panel 24 ... Connecting member 25 ... Fixing anchor 26 ... Mounting hole 27 ... Fastener 30 ... Backfill material 40 ... Backfill concrete 50 ... Top concrete 60 ... Fixing member 61 ... Joint 61a ... Joint surface 62 ... Engagement 63 ... Opening 64 ... Base 65 ... Wall 66 ... Claw Part 70 ... Pillar bar 72 ... Spacer 80 ... Ground 82 ... Slope 90 ... Drained formwork

Claims (5)

It is a fixing member for connecting the civil engineering construction block and the column bar.
A plate-shaped joint having a bonding surface for bonding to the back of the civil building block,
Is connected to the junction between the bonding surface on the opposite side, an engaging portion which space for receiving the pillar muscle is formed,
Equipped with a,
A plurality of the engaging portions are provided along the direction corresponding to the long axis direction of the column bar.
Fixing member. The engaging portion is
The base connected to the joint and
A wall portion rising from each of both edges of the base portion in a direction opposite to the joint surface, and a wall portion.
With a claw portion provided at the end of the wall portion,
Said wall portion and said pawl portion to form said space Ru accept the pillars muscle,
The fixing member according to claim 1. The fixing member according to claim 2, wherein the wall portion and the claw portion are formed in a curved shape. A civil engineering block used for constructing a civil engineering structure having a predetermined wall gradient.
With wall panels
On the back surface of at least some of the wall panels, there are retaining columns provided integrally with the wall panels.
A fixing member provided on the back surface of the retaining pillar is provided.
The fixing member is
A joint having a joint surface and joining to the retaining column via the joint surface,
An engaging portion, which is connected to the joint portion and has a space formed for receiving a column bar on the opposite side of the joint surface , is provided.
A plurality of the engaging portions are provided along the direction corresponding to the long axis direction of the column bar.
Civil engineering block. A method of constructing a civil engineering structure with a predetermined wall slope.
The process of preparing at least one civil engineering construction block having a fixing member on the back surface having an engaging portion capable of engaging the column bar, and
A step of engaging and installing a column bar of a predetermined length with the engaging portion so as to follow the predetermined wall surface gradient.
A step of installing at least one of the civil engineering construction blocks so as to form the predetermined wall surface gradient, and
Including the step of filling concrete on the back surface of the installed at least one civil engineering structure,
Step of placing the civil building blocks, look including the step of engaging the engaging portion of the fixing member to the pillar muscle,
A plurality of the engaging portions of the joint portion are provided along the direction corresponding to the long axis direction of the column bar.
Method.

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