JP2002206224A - Civil engineering structural unit, manufacturing method of the civil engineering structural unit and civil engineering structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a civil engineering structural unit capable of preventing the damage of a suction prevention sheet and performing horizontal slip on the suction prevention sheet. SOLUTION: In the civil engineering structural unit 3 attaching a plurality of natural stones 5 on the surface of a wire net 4 using bolts 15 respectively, the rhombic wire net forming a step H between a plurality of first division elements 6 and a plurality of second division elements 7 as a mesh eight-division element is used, and washers 14 are provided so as to mount the adjacent first division elements between the adjacent second division elements 7 to connect the washers 14 through the bolts 15 on the natural stones 5, which are fixed on the surface of the wire net 4. Then, the head part 19 of the bolt 15 is housed in the step 16 by using the step H, and not projected from the other face of the wire net 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a civil engineering unit for use in the construction of civil engineering structures such as seawalls, a method of manufacturing a civil engineering building unit for producing the civil engineering unit, and the civil engineering building unit. Related to the constructed civil construction.

[0002]

2. Description of the Related Art In recent years, in the construction of civil engineering structures such as seawalls, a plurality of civil engineering building units tend to be used. Each of the civil engineering building units has a structure in which a plurality of stones are attached to one surface of a net-like piece via fixing means. The plurality of civil engineering building units have a suction-prevention sheet ( Suction prevention material). As a result, not only can the original revetment function be secured, but also it can be harmonized with the surrounding natural scenery and can promote return to nature.

[0003]

However, in the above civil engineering building unit, fixing means generally project from the other side of the mesh-like piece, and when the civil engineering building unit is lowered onto the suction preventing sheet, The protrusion of the fixing means may bite into the suction-prevention sheet under the load of the stone, and the suction-prevention sheet may be damaged. In addition, the biting into the suction prevention sheet makes it difficult to shift the civil engineering building unit on the suction prevention sheet (lateral shift) (high resistance), and the alignment (fine adjustment) of the civil engineering building unit is difficult. It's not easy.
If the civil engineering building unit is forcibly shifted for alignment, the possibility that the suction prevention sheet is damaged based on the bite increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a first technical problem thereof is that a civil engineering structure capable of preventing breakage of a suction-prevention sheet and performing lateral displacement on the suction-prevention sheet. Unit will be provided. A second technical problem is to provide a method for manufacturing a civil engineering building unit for manufacturing the above civil engineering building unit. A third technical problem is to provide a civil engineering structure using the civil engineering building unit.

[0005]

In order to achieve the first technical object, the present invention (the invention of claim 1) provides:
A plurality of first partition elements arranged substantially in parallel at predetermined intervals, and a plurality of first partition elements arranged substantially in parallel at predetermined intervals and intersecting with the plurality of first partition elements A civil engineering construction unit, comprising: a mesh member having a second partition element; and a plurality of stones each attached to one surface of the mesh member via fixing means.
The partition element is positioned closer to one surface side of the mesh piece than the plurality of second partition elements in the thickness direction of the mesh piece, and the plurality of first partition elements and the plurality of second partition elements are arranged. And a predetermined step is formed between the adjacent second partition elements, and the fixing means is fixed to the stone so as to lock the adjacent first partition elements between the adjacent second partition elements. is there. Preferred embodiments of the first aspect are as described in the second to sixth aspects.

In order to achieve the first technical object, according to the present invention (claim 7), a plurality of first partition elements arranged substantially in parallel at predetermined intervals, and A plurality of second partition elements arranged substantially in parallel to each other and integrated with each other in a state of intersecting with the plurality of first partition elements. In the civil engineering construction unit to which the stones are attached via fixing means, the fixing means comprises
A seat plate arranged so as to straddle at least the partition element, and a fastener for pressing the seat plate against the stone, wherein the seat plate has an insertion hole facing between the adjacent first partition elements. On the other hand, the fastener has a shaft portion that is inserted into the insertion hole of the seat plate and fixed to the stone, and the shaft portion is subject to movement restriction of the adjacent first partitioning element. , The seat plate is set so as to always straddle the adjacent first partition element.

In order to achieve the second technical object, according to the present invention (an invention of claim 8), a plurality of stones to which screw rods are fixed so as to protrude from the surface to the outside are provided. A plurality of first partition elements disposed substantially parallel to each other, and a plurality of second partition elements disposed substantially parallel to each other at predetermined intervals and integrated in a state of intersecting with the plurality of first partition elements. A mesh piece having a partition element, wherein a step of about the amount of protrusion of the screw rod is formed in the thickness direction between the plurality of first partition elements and the plurality of second partition elements; A seat plate having an insertion hole that can be inserted is prepared, and the plurality of stones are laid out so that the screw bar protrudes upward, and then the net-like piece is placed on the plurality of stones. A plurality of the first partition elements are put on each other while facing downward, and the screw rod of each stone is inserted into the eye of the net-like piece. Next, the seat plate is disposed on each of the stones via the net-like piece, and each seat plate is inserted between the adjacent second partition elements, and the insertion hole of each seat plate is inserted. It is positioned so as to straddle the adjacent first partition elements while being inserted through the screw rod, and then, for each of the stones, screw a nut to the screw rod on the outer side of the seat plate. Then, each of the nuts is prevented from protruding outward from the adjacent second partitioning elements, thereby providing a method for manufacturing a civil engineering construction unit.

In order to achieve the third technical problem, in the present invention (invention of claim 9), a plurality of civil engineering building units are laid on a construction surface via a suction-prevention sheet. The unit for civil engineering structures is provided with a plurality of first partition elements disposed substantially in parallel at predetermined intervals and in a state of being disposed substantially parallel at predetermined intervals and intersecting with the plurality of first partition elements. A mesh having a plurality of second partition elements integrated with each other, a plurality of stones are respectively attached to one surface of the mesh via fixing means, and
The partition element is positioned closer to one surface side of the mesh piece than the plurality of second partition elements in the thickness direction of the mesh piece, and the plurality of first partition elements and the plurality of second partition elements are arranged. A predetermined step is formed between the first and second partition elements, and the fixing means is disposed between the adjacent second partition elements so as to straddle at least the adjacent first partition element; And a fastener that presses the stone against the stone.

[0009]

According to the first aspect of the present invention, a predetermined step is formed between the plurality of first partition elements and the plurality of second partition elements, and the fixing means is provided between the adjacent second partition elements. In the above, since the adjacent first divisional elements are fixed to the stone so as to lock them, the stone is fixed to one side of the net-like piece by locking the adjacent first divisional elements with the stone and the fixing means. On the other hand, based on the step-like arrangement relationship between the plurality of first partition elements and the plurality of second partition elements, the second partition elements adjacent to each other on the other surface side of the mesh piece from each other can be fixed. The space between them can be used as a space for disposing the fixing means, so that the fixing means can be suppressed from protruding from the other surface side of the mesh piece. For this reason, at the time of laying the said civil engineering building unit, the biting of the protrusion of the fixing means with respect to the suction prevention sheet can be suppressed, and the breakage of the suction prevention sheet can be suppressed. The lateral displacement (alignment) of the unit can be improved.

Further, the fixing means has a seat plate disposed between the adjacent second partition elements so as to at least straddle the adjacent first partition element, and a fastener for pressing the seat plate against a stone. As a result, the fastening force of the fastener is applied to the adjacent first partition element via the seat plate, and the seat plate can be accurately locked to the adjacent first partition element. Can be securely fixed to one surface of the mesh piece.

According to the second aspect of the present invention, the seat plate has the insertion hole facing between the adjacent first partition elements, and the fastener is fixed to the stone through the insertion hole of the seat plate. Since the shaft portion has the enlarged diameter portion provided on the shaft portion on the outer side of the seat plate to lock the seat plate, not only the same operation and effect as those of claim 1 are produced, The shaft portion is regulated by the adjacent first partitioning element, and the seat plate is set so as to always straddle the adjacent first partitioning element between the adjacent second partitioning elements. It will be possible to properly lock the one-compartment element (the stone can be securely fixed to the net-like piece).

According to the third aspect of the present invention, since the seat plate is set so as to be substantially fitted between the adjacent second partition elements, the adjacent second partition element and the like are connected to the seat plate. As a result, the seat plate can be more reliably locked to the adjacent first partition element.

According to the invention of claim 4, the fixing means comprises a bolt, a nut, and a seat plate having an insertion hole,
The nut is buried and fixed while exposing the entrance to the stone, and the seat plate is disposed between the adjacent second partition elements at least in the first partition adjacent to the nut while the insertion hole of the seat plate faces the entrance of the nut. Since the bolt is disposed so as to straddle the element, the bolt is inserted from the outside of the other side of the mesh piece into the through hole of the seat plate and the eye of the mesh piece and screwed into the nut, the bolt and the nut ( By embedding in a stone), the same function and effect as those of the first and second aspects can be specifically obtained.

According to the fifth aspect of the present invention, since the net-like piece is a diamond-shaped wire mesh, also in this diamond-shaped wire mesh, a plurality of first partition elements and a plurality of second wire segments are formed by the constituent wires.
By forming the partition element, a predetermined step can be formed, and the same operation and effect as those of the above-described claims 1 to 4 can be specifically obtained.

According to the sixth aspect of the present invention, since the mesh piece is integrated with a plurality of reinforcing bars arranged in parallel with another plurality of reinforcing bars intersecting, the plurality of reinforcing bars are integrated by each of the plurality of reinforcing bars. Forming a plurality of first compartment elements and a plurality of second compartment elements,
As a result, a predetermined step can be formed.
Thus, the same operation and effect as in the fourth embodiment can be specifically obtained.

According to the seventh aspect of the present invention, the shaft portion is regulated by the adjacent first partitioning element, and the seat plate is connected to the adjacent first partitioning element between the adjacent second partitioning elements. In such a state that the stone is always straddled, it can be properly locked to the adjacent first partition element (the stone can be securely fixed to the net-like piece).

According to the invention of claim 8, the civil engineering building unit according to claim 1 or the like can be concretely manufactured, the breakage of the suction-prevention sheet can be suppressed, and the civil-construction structure on the suction-prevention sheet can be prevented. Not only can the lateral displacement (alignment) of the unit be improved, but after the mesh piece is placed on a plurality of stones, the movement of the mesh piece is regulated (positioned) by a threaded rod inserted into the eyes of the mesh piece. As a result, the work of fixing the stone to the mesh piece can be performed easily and accurately.

According to the ninth aspect of the present invention, since the civil engineering building unit according to the first aspect is laid on the construction surface via the suction prevention sheet, breakage of the suction prevention sheet can be suppressed and suction can be performed. It is possible to provide a civil engineering structure capable of improving the workability by improving the lateral displacement (positioning) of the civil engineering building unit on the prevention sheet.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a revetment. In this seawall 1, a large number of civil engineering building units 3 according to the embodiment are laid on the seawall slope (including the bottom) 1 a via a suction prevention sheet 2, and each civil engineering building unit 3 is Adjacent objects are connected.

The suction prevention sheet 2 has a function of preventing the suction of soil and the like, which is previously laid on the seawall 1a, and is made of a material that is somewhat soft.

Each of the above civil engineering building units 3 is shown in FIG.
As shown in FIG. 3, a plurality of natural stones (stones) 5 are attached to a wire netting 4 as a net-like piece.

In the present embodiment, the wire mesh 4 is a rhombus wire mesh having a rectangular shape (for example, a square having a side of 2 m), and the wire mesh 4 has a plurality of first partition elements 6 and a plurality of second partition elements 6. It is formed by the partition element 7. The first partition elements 6 are disposed so as to extend substantially straight at predetermined intervals, and the first partition elements 6 are arranged in parallel with each other. Each of the second partition elements 7 is also arranged in a state of being substantially straight and extending at predetermined intervals in a parallel relationship with each other, and each of the second partition elements 7 has a bolt (described later) in the thickness direction of the wire mesh 4. The predetermined step H which is somewhat longer than the thickness of
Thus, the plurality of first partition elements 6 are integrated in a state of being crossed. As a result, a sheet shape having a predetermined thickness based on the predetermined step H is formed as an entire shape, and a rhombic mesh 8 is partitioned based on the adjacent first partition element 6 and the adjacent second partition element 7. Is supposed to be.

More specifically, since the wire mesh 4 is a diamond-shaped wire mesh, as shown in FIG. 3, each of the first and second partition elements 7, 8 is provided.
Is formed by assembling (entangled) a plurality of wires (formed in a zigzag shape with steps) 9,
Each of the first and second partition elements 7 and 8 is configured to partially connect a part 9a of a plurality of wires 9.

Such a wire mesh 4 is laid on the revetment slope 1 such that the plurality of first partition elements 6 are positioned above the plurality of second partition elements 7, and the upper surface side of the wire mesh 4. The side of the wire mesh 4 (the side of the plurality of second partition elements 7) is the back side (the other side).

As the plurality of natural stones 5, various stones such as boulders and split stones are used. A long nut (commonly referred to as an anchor) 10 is embedded and fixed in each natural stone 5, and an entrance 10 a thereof is opened from the surface of the natural stone 5 to the outside. In this case, the nut 10 is embedded and fixed.
In the present embodiment, the natural stone 5 is drilled into the hole 1 using a drill.
1 (see FIG. 4), a wedge 12 is set in the hole 11, and a plurality of slits 13 are inserted into the hole 11 at the insertion tip.
The nut 10 (see FIG. 3) is driven by a hammer 20 (see FIG. 5), and the expanded portion 10b of the nut 10 expanded by the wedge 12 is engaged with the inner peripheral surface of the hole 11 (see FIG. 6). Is obtained by

[0027] Such a plurality of natural stones 5 are
The entrance 10a of the nut 10 in each natural stone 5 is directed to the surface of the wire mesh 4. In FIGS. 2 and 3, the surface of the wire mesh 4 is directed downward.

In the present embodiment, in addition to the nut 10, a washer 14 and a bolt 15 are used to attach the plurality of natural stones 5 to the wire net 4.

As shown in FIG. 3, the washer 14 is a long plate. The washer 14 has a thickness sufficiently smaller than a predetermined step H between the first partitioning element 6 and the second partitioning element 7, and has a length in the longitudinal direction at least between the first partitioning elements 6 adjacent to each other. A length equal to or longer than the length L1 is secured, and a length that fits and fits between adjacent second partition elements 7 (length L2) is set as the width direction length. An insertion hole 17 is formed in the washer 14, and the insertion hole 17 is located at the longitudinal center of the washer 14.

As shown in FIG. 3, such washers 14 are set on the back surface of the wire mesh 4 for each natural stone 5, and the washers 14
It is housed between adjacent second partitioning elements 7 that partition the mesh 8, and is disposed so as to straddle the adjacent first partitioning element 6 that partitions the mesh 8, and the insertion hole 1 of the washer 14 is provided.
Numeral 7 faces the entrance 10a of the nut 10 in the natural stone 5 through the mesh 8 (see the dashed line in FIG. 3).

The bolt 15 is, as shown in FIGS.
As is known, a shaft 18 having an external thread and a head 19 having a diameter larger than that of the shaft 18 are provided.
5 is inserted from the back side of the wire mesh 4 into the insertion hole 1 of the washer 14.
7. After the mesh 8 of the wire mesh 4 has been inserted, the head 19 of the bolt 15 and the natural stone 5 are screwed to the nut 10, sandwiching the washer 14 and the wire mesh 4, and putting the natural stone 5 on the surface of the wire mesh 4. It is to be fixed. In this case (at the time of fastening), the head 19 of the bolt 15 fits within the step H between the first partitioning element 6 and the second partitioning element 7, and the head 19 of the bolt 15 is on the back surface of the wire mesh 4 (the second partitioning element). It does not protrude outward than 7).

Next, a method of manufacturing the civil engineering building unit 3 will be described. First, a plurality of natural stones 5 to be arranged on the wire netting 4 are laid on a flat work surface. In this case, the nut 10 is embedded and fixed to each natural stone 5 as described above, and the entrance 10a of the nut 10 is directed upward. The number and arrangement of the plurality of natural stones 5 are determined so that they can be arranged in the wire netting 4.

Next, a wire mesh 4 is put on the plurality of natural stones 5. In this case, in the wire netting 4, the plurality of first partition elements 6 are directed to the plurality of natural stones (lower side) 5.

Next, as shown in FIG. 3, a washer 14 is set on the back surface of the wire mesh 4 for each natural stone 5. In this case, each washer 14 is positioned between the adjacent second partitioning elements 7 such that the insertion hole 17 of the washer 14 faces the entrance 10a of the nut 10 in the natural stone 5 through the mesh 8, and It is arranged so as to straddle the one partition element 6 sufficiently.

Next, for each natural stone 5, a bolt 15 is passed through the insertion hole 17 of the washer 14 and the mesh 8 of the wire mesh 4, respectively.
Each bolt 15 is screwed onto the nut 10 of each natural stone 5, and the head 19 of the bolt 15 and the natural stone 5 are used to wash the washer 14 and the wire mesh 4.
Sandwich. Thereby, each natural stone 5 is fixed to the surface of the wire net 4. In this case, the head 19 of each bolt 15 does not protrude outward from the plurality of second partition elements 7 (the back surface of the wire mesh 4).

Therefore, the above civil engineering construction unit 3
In the above, since the bolt 15 does not protrude outward from the back surface (the plurality of second partition elements 7) of the wire mesh 4,
When the civil engineering building unit 3 is laid, the breakage of the suction prevention sheet 2 can be suppressed, and the lateral displacement (positioning) of the civil engineering building unit 3 on the suction prevention sheet can be improved. Moreover, not only the adjacent second partitioning element 7 and the like (in the embodiment, the first partitioning element 6 also participates (see FIG. 3)) that accommodates the washer 14 function as a detent member for the washer 14, but also the shaft of the bolt 15. Movement is restricted by the first partitioning element 6 and the like 18 adjacent to each other, the washer 14 functions as an accurate locking member at a predetermined position, and the natural stone 5 continues to be fixed to the surface of the wire mesh 4. become.

FIG. 7 shows another embodiment. In the other embodiments, the same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In this embodiment, as shown in FIG. 7, a screw rod 2 is used instead of the nut 10 according to the embodiment.
1 is fixed so as to protrude from the natural stone 5, and its screw rod (projection part) 21 is inserted into the mesh 8 of the wire netting 4 and the insertion hole 17 of the washer 14, and the screw rod 21 has an enlarged diameter part. Nut 22 is screwed. Thus, also in this case, the nut 22 and the screw rod 21 do not protrude from the other surface of the wire mesh 4, and the same operation and effect as in the above embodiment can be obtained.

In this embodiment, the screw rod 21 is fixed by using a cylindrical screw rod 21 having a plurality of slits at the insertion tip, pushing the screw rod 21 (by driving), and using the wedge 12. Expanded portion 2 of expanded screw rod 21
1a is obtained by engaging the inner peripheral surface of the hole 11. The production of such a civil engineering building unit 3 uses a screw rod 21 instead of the nut 10 according to the embodiment,
It is basically the same except that a nut 22 is used instead of the bolt 15 according to the embodiment.

Although the embodiments have been described above, the present invention includes the following aspects. 1) A pseudo stone is used instead of the natural stone 5 as the stone. 2) Instead of the case where the long nut 10 is embedded and fixed in the natural stone 5, an internal thread is formed directly on the natural stone 5. 3) When the screw rod 21 is embedded and fixed in the natural stone 5, the pin is pushed into the screw rod 21 from the outside by using a cylindrical screw rod 21 having a plurality of slits at the insertion tip, and the screw rod 21 is fixed. Use the one that pushes open the expanded part. 4) A plurality of reinforcing bars (first
A plurality of reinforcing bars (second partition elements) are arranged so as to cross each other on the partition element), and they are combined to form a lattice. 5) When fixing the nut 10 or the screw rod 21 to the natural stone 5, the nut 10 or the screw rod 21 and the inner surface of the hole 11 are bonded via an adhesive.

It should be noted that the object of the present invention is not limited to the specified one, but includes providing what is substantially preferred or corresponding to the described advantage.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a revetment using a civil engineering building unit according to an embodiment.

FIG. 2 is an enlarged explanatory view of a main part of the civil engineering building unit according to the embodiment.

FIG. 3 is an explanatory diagram illustrating an attachment relationship between natural stones and a wire net in the civil engineering building unit according to the embodiment.

FIG. 4 is an explanatory diagram illustrating a process of attaching a nut to natural stone.

FIG. 5 is an explanatory view illustrating a step following the step shown in FIG. 4;

FIG. 6 is an explanatory view illustrating a step following the step shown in FIG. 5;

FIG. 7 is an enlarged explanatory view of a main part of a civil engineering building unit according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seawall 3 Civil engineering building unit 4 Wire mesh 5 Natural stone 6 First partition element 7 Second partition element 8 Mesh 10 Nut 10a Entrance 14 Washer 15 Bolt 16 Step 17 Insertion hole 18 Shaft 19 Bolt head 21 Screw rod 22 Nut

Claims (9)

[Claims] 1. A plurality of first partition elements arranged substantially in parallel at predetermined intervals, and a plurality of first partition elements arranged substantially in parallel at predetermined intervals and intersecting with the plurality of first partition elements. A mesh having a plurality of second compartment elements to be integrated;
In a unit for civil engineering construction, wherein a plurality of stones are respectively attached to one surface of the mesh piece via fixing means, wherein the plurality of first partition elements are arranged in the thickness direction of the mesh piece. And a predetermined step is formed between the plurality of first partition elements and the plurality of second partition elements, and the fixing means is disposed adjacent to the one side of the mesh piece. A seat plate disposed between the second partition elements so as to straddle at least the adjacent first partition element, and a fastener for pressing the seat plate against the stone. For civil engineering structures. 2. The stone according to claim 1, wherein the seat plate has an insertion hole facing between the adjacent first partitioning elements, and the fastener passes through the insertion hole of the seat plate to the stone. A civil engineering building unit comprising: a shaft portion to be fixed; and an enlarged diameter portion provided on the shaft portion on an outer side of the seat plate to lock the seat plate. 3. The civil engineering building unit according to claim 1, wherein the seat plate is set so as to be substantially fitted between the adjacent second partition elements. 4. The nut according to claim 1, wherein the fixing means includes a bolt, a nut into which the bolt is screwed, and a seat plate having an insertion hole through which the bolt is inserted. However, the seat is buried and fixed while exposing an entrance to the stone, and the seat plate is disposed between the adjacent second partition elements at least in the vicinity of the nut while the insertion hole of the seat plate faces the entrance of the nut. The bolt is inserted so as to straddle the first partitioning element, and the bolt is inserted from the outside of the other side of the mesh piece into the insertion hole of the seat plate and the eye of the mesh piece, and screwed into the nut. A civil engineering building unit. 5. The civil engineering building unit according to claim 1, wherein the mesh piece is a diamond-shaped wire mesh. 6. The method according to claim 1, wherein the reticulated piece is integrated on a plurality of reinforcing bars arranged in parallel with another plurality of reinforcing bars crossing each other. And civil engineering building unit. 7. A plurality of first partition elements arranged substantially in parallel at predetermined intervals, and a plurality of first partition elements arranged substantially in parallel at predetermined intervals and intersecting with the plurality of first partition elements. A mesh having a plurality of second compartment elements to be integrated;
In a civil engineering building unit in which a plurality of stones are attached to one surface of the mesh piece via fixing means, respectively, the fixing means is provided with a seat plate disposed so as to straddle at least the adjacent first partitioning elements. And a fastener for pressing the seat plate against the stone, while the seat plate has an insertion hole facing between the adjacent first partition elements, while the fastener is the seat plate. Having a shaft portion that is inserted into the insertion hole and fixed to the stone, wherein the shaft portion is subject to movement regulation of the adjacent first partitioning element, and the seat plate is always attached to the adjacent first partitioning element. A civil construction unit, which is set so as to be straddled. 8. A plurality of stones to which screw rods are fixed so as to protrude from the surface to the outside, a plurality of first partition elements arranged substantially in parallel at predetermined intervals, and a plurality of first partitioning elements arranged in substantially parallel at predetermined intervals. A plurality of second partition elements provided and integrated in a state of being crossed with respect to the plurality of first partition elements, between the plurality of first partition elements and the plurality of second partition elements. In the thickness direction, a mesh-like piece formed with a step about the amount of protrusion of the screw rod, and a seat plate having an insertion hole through which the screw rod can be inserted are prepared, and the plurality of stones are screwed into the screw rod. Are laid out so as to protrude upwards. Next, the net-like piece is placed on the plurality of stones while the plurality of first partition elements are directed downward, and the screw rod of each stone is Inserted into the eyes of the mesh piece, Next, the seat plate is placed on each of the stones via the mesh piece, Positioning each seat plate between the adjacent second partition elements so as to straddle the adjacent first partition element while inserting the insertion hole of each seat plate into the screw rod, For each of the stones, a nut is screwed onto the screw bar on the outer side of the seat plate so that the nut does not project outward from the adjacent second partitioning elements. A method for manufacturing a civil engineering building unit. 9. A plurality of civil engineering building units are laid on a construction surface via a suction prevention sheet, and each of the civil engineering building units is provided with a plurality of first partition elements arranged substantially in parallel at predetermined intervals. A plurality of second partition elements disposed substantially parallel to each other at predetermined intervals and integrated with each other in a state of intersecting with the plurality of first partition elements. A plurality of stones are respectively attached to one surface via fixing means, and the plurality of first partition elements are arranged in the thickness direction of the net-like piece.
A predetermined step is formed between the plurality of first partition elements and the plurality of second partition elements so as to be positioned closer to one surface side of the mesh piece than the partition elements, and Between the matching second partition elements, a seat plate disposed so as to straddle at least the adjacent first partition element, and a fastener for pressing the seat plate against the stone; Civil engineering features.