JP4960675B2 - Civil engineering block manufacturing method and civil engineering structure - Google Patents

Description

  The present invention relates to a civil engineering block manufacturing method and a civil engineering structure, and particularly to a civil engineering block manufacturing method and a civil engineering structure used as a root block in a riverbed or the like.

  Conventionally, this kind of civil engineering block, for example, Negoshi block, revetment block, revetment block, etc., is used for river mounding, revetment, various types of mounds such as coasts (jetty, breakwater, submerged dike, wave breakage, etc.) ) Are installed side by side on the construction surface in order to demonstrate the conservation of the natural environment, the floor protection and revetment functions, and the wave extinguishing function.

  The civil engineering blocks of various standards are similar standard products, and the molds are assembled after using the formwork members of the standards corresponding to the civil engineering block standards at each construction site, and then demolded after placing the concrete. The frame member is again transported to the next construction site for diversion.

Actually, when manufacturing the block, the side plate mold member is erected integrally on the periphery of the bottom plate mold member to assemble the mold, and concrete is placed in the mold to cure and harden. After that, each block for civil engineering as a product is manufactured one by one by removing the mold. That is, it is necessary to secure a large gap for demolding work between adjacent block manufacturing spaces in order to remove the mold member once in the horizontal direction and then pull it upward at the time of demolding. Only one civil engineering block can be manufactured by concrete placement (see, for example, Patent Document 1).
JP2003-236815A.

  In the prior art described in Patent Document 1, when manufacturing civil engineering blocks having a standard (overall weight) of 2 tons, other standards (for example, 0.5 tons, 1 tons, 3 tons, 4 tons or more) Standard) formwork members cannot be used, so it is necessary to prepare formwork members with different standards according to each construction site. Therefore, the same formwork member cannot be used in common at each construction site, and the diversion efficiency of the formwork member is also reduced.

  In addition, when building a civil engineering block by assembling the formwork, many steps are required, such as placing concrete, removing the mold, transposing the block, temporarily placing, and installing. In combination with this, there was a problem that the construction period was long.

  Therefore, civil engineering blocks with different standards can be handled (shared) with the same formwork member, the diversion efficiency of the formwork member is increased, and a technical problem to be solved in order to shorten the construction period arises. The present invention aims to solve this problem.

The present invention has been proposed to achieve the above object, and the invention according to claim 1 is a method of manufacturing a plurality of substantially rectangular civil engineering blocks, wherein a plurality of molds formed in an inverted trapezoidal columnar shape are provided. The frame members are arranged vertically and horizontally, and adjacent mold members are connected to each other to form a plurality of substantially rectangular block manufacturing spaces, and concrete is placed in the block manufacturing spaces and demolded after curing. In the manufacturing method of concrete blocks for civil engineering,
Placing the concrete is performed in a state where an anchor member such as a reinforcing bar is set at a location where the plurality of formwork members intersect with each other, whereby the anchor member is integrated with a side surface of the civil engineering block. A method for producing a concrete block for civil engineering is provided.

  According to this configuration, a plurality of formwork members are arranged vertically and horizontally to form, for example, a substantially rectangular block manufacturing space having a different size (volume), and concrete is placed and cured in this block manufacturing space. After hardening, when a plurality of formwork members are removed, a substantially rectangular civil engineering block corresponding to the shape of the block manufacturing space is manufactured. Therefore, if manufactured at a construction site such as a riverbed, the manufacture and installation of the civil engineering block are completed at the same time.

  According to this configuration, the anchor member is set at the intersection of the formwork members, and the concrete is placed in this state. For this reason, an anchor member is embedded and attached to the side surface of the civil engineering block manufactured by demolding. As this anchor member, for example, an insertion muscle having one or a plurality of loop-shaped portions at the distal end portion can be used.

According to a second aspect of the invention, pouring of the previous SL concrete, by performing at setting the vent core in the box-like to the block manufacturing space, hollowed in the central part of the said civil engineering blocks The method for producing a concrete block for civil engineering according to claim 1, wherein the hole is formed .

  According to this configuration, the hollow core is set at the center position of the block manufacturing space, and the concrete is placed in this state. For this reason, a hollow hole is formed in the center of the civil engineering block manufactured by demolding.

Third aspect of the present invention, the formwork member provides a civil engineering concrete block manufacturing method according to claim 1 or 2, characterized in that disposed on the bottom surface that laid suction prevention sheet.

  According to this structure, after laying out the said suction prevention sheet | seat on the bottom face of a construction location, a some formwork member is arrange | positioned on this suction prevention sheet | seat, and concrete is laid in this state. In this case, the suction prevention sheet functions as a bottom plate of the mold.

Fourth aspect of the present invention, a portion of the mold member may be formed using a low profile Yue diverted formwork members for adjusting the droplet設高of the concrete A method for producing a concrete block for civil engineering according to claim 1, 2 or 3.

  According to this configuration, a part of the formwork member that partitions the two block manufacturing spaces is arranged using the overflow formwork member having a low height. In this way, when concrete is poured into one block manufacturing space partitioned by the formwork member, the height of the concrete rises to the height of the upper surface of the overflow formwork member, and then the excess poured. The concrete overflows the overflow formwork member and moves into the other block manufacturing space. For this reason, the thickness of the manufactured civil engineering block corresponds with the height of the overflow formwork member.

The invention according to claim 5 is a plurality of concrete blocks manufactured by the method for producing a concrete block for civil engineering according to claim 1, 2, 3 or 4 in the covering work of various mounds such as river foundation works, floor protection works, coasts, etc. A civil engineering structure characterized by being constructed using a concrete block of

  According to this configuration, when constructing a gypsum work, a floor protection work, and a coast covering work in rivers, waterways, coasts, etc., the above-described manufacturing method is used to manufacture and install the plurality of civil engineering blocks. It is done. That is, a plurality of formwork members are arranged vertically and horizontally at a block installation location to form a block manufacturing space, and concrete is placed in the block manufacturing space. When the mold is removed after curing, a civil engineering block is manufactured, and at the same time, the installation of the civil engineering block is completed.

  If the invention of claim 1 is manufactured at a construction site where a dry work such as a riverbed is possible, the transposition, temporary placement and installation of the civil engineering block are omitted, and the production and installation of the civil engineering block is completed simultaneously. Compared to the conventional method, the manufacturing process can be reduced and the construction period can be greatly shortened.

  Since the present invention can assemble a desired standard (tonnage) formwork by connecting a desired number of formwork members, it is the same even when manufacturing civil engineering blocks with different standards at other construction sites. The formwork member can be diverted as it is, and the diversion operation rate of the formwork member is increased. In addition, inventory management or shipment management of the mold members is facilitated, and transportation or loading of the mold members is facilitated.

  Moreover, since the formwork member is formed in an inverted trapezoidal columnar shape, it is possible to smoothly remove the mold simply by pulling up the formwork member. Further, the inverted trapezoidal columnar formwork member is made of a member having high rigidity and strength, so that a reinforcing flange or rib becomes unnecessary. The formwork member has a rectangular parallelepiped column shape, and two opposing surfaces (surfaces in contact with the concrete) may be connected using an extendable instrument such as a jack.

  Furthermore, in the prior art, since it is necessary to secure a large gap for demolding work between adjacent block manufacturing spaces, only one civil engineering block can be manufactured by a single concrete placement. In the present invention, since the gap becomes small, for example, by placing an umbrella-shaped attachment on the upper part of the block manufacturing space and placing concrete, two blocks can be manufactured simultaneously by one concrete placement. And productivity is improved as compared with the prior art. Also, a plurality of block manufacturing spaces having different sizes, that is, blocks having different sizes and masses can be manufactured using the same mold according to the conditions at the construction site.

This invention, since the anchor member is attached to the side of civil engineering blocks, in addition to the effect, the anchor member is used as a member for connecting the block to each other for該土trees, also especially for factory production It is also used as a handle for the civil engineering block.

According to the second aspect of the present invention, since the hollow hole is formed in the central portion of the civil engineering block, in addition to the effect of the first aspect, the lift acting on the central portion of the civil engineering block is reduced. be able to. Moreover, the hollow hole can provide a space suitable for the survival of animals and plants in water, and can contribute to the preservation of the ecological environment or the natural environment.

In the invention described in claim 3 , since the suction preventing sheet functions as the bottom plate of the mold, in addition to the effect of the invention described in claim 1 or 2, there is no need to separately install a bottom plate such as a steel plate. It is possible to effectively prevent the bottom scouring phenomenon caused by the water flow at the block mounting location.

In the invention described in claim 4, since the thickness of the civil engineering block matches the height of the overflow formwork member, in addition to the effect of the invention described in claim 1, 2, or 3, the height of the overflow formwork member Only by changing the height, the height of the civil engineering block can be easily adjusted and changed.

The invention according to claim 5 can greatly reduce the construction period and construction cost of the civil engineering structure since the construction and installation of the civil engineering block are completed simultaneously at the construction site of the civil engineering structure in the river, waterway, coast, etc. it can. Further, even if the standard of the civil engineering block to be manufactured is different, it can be easily handled by connecting the required number of the same mold members.

  In the present invention, a plurality of substantially rectangular civil blocks are provided for the purpose of being able to cope with civil engineering blocks of different standards by the same mold member, increasing the diversion efficiency of the mold member and shortening the work period. A method for manufacturing, wherein a plurality of substantially rectangular block manufacturing spaces are formed by arranging a plurality of formwork members formed in an inverted trapezoidal column shape vertically and horizontally and connecting adjacent formwork members to each other. This was realized by placing concrete in the block manufacturing space and removing the mold after curing.

  A preferred embodiment of the present invention will be described below with reference to FIGS. The civil engineering block manufacturing method according to the present embodiment uses a large number of mold members formed in an inverted trapezoidal column shape in cross section, and the mold members are arranged in a plurality of rows in the vertical and horizontal directions and interconnected to form a lattice-shaped mold. By assembling into a frame, a large number of substantially rectangular block manufacturing spaces (mesh) partitioned by a large number of formwork members are formed, and concrete is placed in the block manufacturing space to manufacture a large number of civil engineering blocks. And installation at the same time. Here, arranging a plurality of formwork members according to the present invention vertically and horizontally includes, for example, “lattice” or “lattice”.

  In this civil engineering block manufacturing method, the civil engineering block is constructed by directly assembling the formwork and placing concrete at the block laying place in river root consolidation, floor protection, and various mounds on the coast. It is possible to construct a civil engineering structure efficiently with few processes. Further, after a civil engineering block is manufactured in the vicinity of the laying location or at a factory, the civil engineering block can be transported to the laying location and installed.

  As shown in FIG. 1, in the assembly process of the mold 1 according to the present embodiment, a large number of mold members 2 are arranged in a plurality of rows in the vertical and horizontal directions, for example, formed in a lattice shape, and the mold The connecting core 3 is disposed at a location where the frame members 2 intersect each other. Therefore, in this embodiment, a large number of mold members 2 as side plates of the mold 1 and a bucket-like connecting core 3 for connecting the mold members 2 to each other are basically used. The use of the formwork bottom plate is not necessary.

  As shown in FIG. 2, the mold member 2 is a steel hollow member that does not require reinforcing ribs, and the mold member 2 is formed in a horizontally long inverted trapezoidal column shape. That is, as shown in FIG. 3, the side end surface shape of the mold member 2 is an inverted isosceles trapezoid, and the upper side of the inverted isosceles trapezoid is longer than the lower side, and the upper surface of the mold member 2 is open. Is formed. The angle formed between the bottom side and both side sides of the mold member 2 is set to a predetermined angle in order to facilitate the removal of the mold member 2 at the time of demolding.

  The inverted trapezoidal columnar formwork member 2 has a standard length of about 50 cm, and if necessary, a minimum length of about 25 cm to a maximum length of about 100 cm, and a height of about 30 cm to 80 cm, preferably about 50 cm. The dimensions vary depending on the design conditions. Further, a pair of lifting hooks 4 are provided on the upper surfaces of both sides of the mold member 2 in the width direction, and the pair of lifting hooks 4 are arranged to face each other on the left and right.

  The plurality of mold members 2 are used by being connected to each other. In this case, the end faces of the connecting portions of the adjacent mold members 2 can be fastened by a connecting tool 5 such as a bolt or a cotter pin. For this reason, the length of the mold 1 is set to a desired value according to the design conditions at the construction site. Can be adjusted easily. Therefore, the vertical and horizontal lengths of the mold 1 can be arbitrarily adjusted and changed simply by connecting the same number of the same mold members 2 using the required number. Therefore, even when assembling standard 0.5t to 8t class molds, the same It is possible to easily cope with the mold member 2 alone.

  On the other hand, as shown in FIG. 4, the connecting core 3 is a hollow steel member formed vertically, and the connecting core 3 has a substantially regular octagonal shape in plan view. Further, the side surface shape of the connecting core 3 is formed as an inverted isosceles trapezoid that substantially matches the end surface shape of the mold member 2. The angle formed by the bottom side and the side side of the connecting core 3 is set to a predetermined angle in order to facilitate the removal of the connecting core 3 during demolding. Further, the height of the connecting core 3 is set higher than the height of the mold member 2 by a predetermined dimension, and a lifting hook 6 is provided on the upper surface of the connecting core 3.

  In addition, four slit holes 7 for holding insertion muscles are formed in the lower part of the side surface of the connecting core 3. The four slit holes 7 are provided at intervals of 90 ° along the circumferential direction of the connecting core 3, and an insertion bar (anchor member) 8 is detachably held in each slit hole 7. .

  The insertion bar 8 is formed in an Ω shape having a U-shaped portion or a shape similar thereto, and the U-shaped portion is set so as to be movable in the vertical direction along the slit hole 7. Thus, when concrete is placed with the insertion bars 8 set on the connecting core 3, the insertion bars are placed on the side surfaces of the four corners of a civil engineering block (hereinafter simply referred to as a block) manufactured after demolding. Both end portions of 8 are embedded and integrated.

  Next, a procedure for assembling the lattice-shaped mold 1 using the mold member 2 and the connecting core 3 will be described. First, floor leveling is performed so that the installation surface of the block laying location is a flat surface, and the suction preventing sheet 12 is laid on the floor leveling surface as shown in FIG. Since this suction prevention sheet 12 functions as a bottom plate of the mold 1, there is no need to lay a steel bottom plate.

  Thereafter, a large number of formwork members 2 are arranged in a lattice pattern on the installation surface of the laying place, and adjacent formwork members 2 are connected to each other. As a result, a large number of cells, that is, substantially rectangular block manufacturing spaces 13 partitioned by the lattice-shaped formwork member 2 are formed. In this case, the formwork members 2 adjacent to each other in a straight line shape are directly connected by being fastened by a connecting tool 5 such as a bolt. However, at a location where the mold member 2 intersects in an L shape, a T shape, or a cross shape, the mold member 2 is connected via a connecting core 3 disposed at the location.

  For example, at the location where the mold member 2 intersects in a cross shape, the connecting core 3 is set at the center position of the intersecting location, and then the mold member 2 is connected to the outer surface of the connecting core 3. Specifically, the end surfaces of the mold member 2 are brought into contact with the four side surfaces of the connecting core 3 in the cross direction, and the side surfaces of the connecting core 3 and the end surface of the mold member 2 are made of bolts or the like. It connects with a connector (not shown). By the same procedure, the mold member 2 and the connecting core 3 can be connected to each other even at the L-shaped or T-shaped intersection. The installation order of the connecting core 3 and the formwork member 2 is not particularly limited.

  Thereafter, the insertion muscle 8 is set at a predetermined position so that the insertion muscle 8 is integrated with the side surface of the block 10 as a product. For example, at positions where the mold members 2 cross each other in a cross shape via the connecting core 3, the insertion bars 8 are set in the four slit holes 7 of the connecting core 3, respectively. 8 are arranged so that both end portions thereof are embedded in the side surface of the block 10. Further, at the location where the mold members 2 intersect with each other in the L shape or the T shape via the connecting core 3, two or three slit holes 7 of the connecting core 3 are similarly provided. Insertion muscles 8 are set in each.

  In this way, a large number of substantially rectangular block manufacturing spaces 13 are formed by assembling the lattice-shaped mold frame 1 with a large number of mold frame members 2 and connecting cores 3. Next, concrete is placed in the block manufacturing space 13. In this case, the top edge of the block manufacturing space 13 is formed so as to taper upward with respect to the bottom surface, so that the concrete can be easily placed in the block manufacturing space 13. . When reinforcing reinforcing bars (myocardial muscles) are required to improve the strength, spacers can be arranged by placing spacers at the required positions.

  Then, when the concrete curing and hardening process is completed after a predetermined time has elapsed after placement, next, the lifting hooks 4 and 6 attached to the individual formwork members 2 and the connecting core 3 are used. The mold member 2 and the connecting core 3 are demolded in this order. Note that the order of demolding may be reversed.

  Thus, as shown in FIG. 6 and FIG. 7, a large number of substantially rectangular blocks (root fixation blocks, floor protection blocks, etc.) 10 corresponding to the size and shape of the block manufacturing space 13 are manufactured simultaneously. Both end portions of the insertion bar 8 are integrally embedded in the corner side surface of the manufactured block 10, and the U-shaped part of the insertion bar 8 is formed so as to protrude to the outside of the block 10. Thereafter, the insertion bars 8 are connected to each other by the connecting fitting 9 so that the adjacent blocks 10 are integrally connected. As shown in FIGS. 8A and 8B, the shape of the insertion muscle 8 may be a shape having a loop (ring) at the tip, or a shape in which a plurality of loops are entangled. Good.

  As described above, in the present embodiment, a large number of formwork members 2 are arranged in a grid to form a substantially rectangular block manufacturing space 13, and concrete is placed in the block manufacturing space 13 and cured. After that, by removing the mold member 2, a large number of blocks 10 arranged in parallel in the vertical and horizontal directions are manufactured at a time.

  Therefore, if the above-mentioned formwork member 2 is assembled and cast on the concrete at a laying place such as a riverbed, the manufacture and installation of the block 10 with the insertion bars 8 are completed at the same time. Thus, the transposition step and the temporary placement step, which have been necessary in the past, are omitted, and the construction period and construction cost can be greatly reduced. In addition, as shown in FIG. 8, the formwork 1 according to the present invention is provided with a covering of a place where the installation surface is inclined, such as a river revetment or various types of mounds (a jetty, a breakwater, a submerged dike, a breakwater, etc.) Can be installed on road slopes. In addition, in the construction example of FIG. 9, the block 10 without a hole is installed in the lower part of a river revetment, and a root fixed part, Furthermore, the block 10 which has the hole 10a is installed in the upper part of a river revetment. In particular, the plant P can be prospered by putting soil S in the hole 10a.

  Moreover, since the required number of formwork members 2 can be connected to form a grid-like formwork 1 having a desired size, for example, after assembling the formwork 1 for 2 tons, 0.5 tons for the next construction site, Even when the mold 1 for 1 ton, 3 ton, or 4 ton or more is assembled, it can be dealt with by using only the mold member 2 of the same standard. Therefore, even if the standard type of the block 10 is different at the next construction site, the same mold member 2 can be diverted again, and the diversion efficiency of the mold member 2 is increased.

  Furthermore, since the space | gap (joint width) between adjacent blocks 10 becomes narrow, for example, by using an umbrella-shaped concrete placement attachment (not shown), two adjacent block manufacturing spaces 13 are used. At the same time, concrete can be driven in, and construction efficiency is remarkably improved.

  Furthermore, since the insertion bar 8 as an anchor member is integrally attached to the side surface of the block 10, the insertion bar 8 can be used as a member for connecting the blocks 10 to each other, and the block 10 can be loaded or transported. It can also be used as a hanging tool.

  In addition, since concrete is placed on the suction prevention sheet 12, the suction prevention sheet 12 serves as a mold bottom plate, and after the block is manufactured, a scouring phenomenon occurs from the gap between the blocks. To prevent.

  Next, another embodiment of the present invention will be described. In the following drawings, the same members as those in the above-described embodiment are denoted by the same reference numerals. Moreover, although the said connection core 3 is arrange | positioned in the cross | intersection location of a grid | lattice formwork, illustration is abbreviate | omitted. FIG. 10 shows a form 16 used in manufacturing a small, generally rectangular block. The mold 16 is formed by alternately connecting the mold member 2 having a length of 100 cm used in the above-described embodiment and the mold member 17 having a length shorter than the mold member 2 (length 50 cm). By assembling in a lattice shape, a large number of small rectangular block manufacturing spaces 18 each having a side of about 150 cm are formed.

  FIG. 11 shows a form 20 used when manufacturing a large, substantially rectangular block. The large formwork member 20 and the short formwork member 17 are also regularly arranged and connected to each other and assembled into a lattice shape, so that the large formwork block manufacturing space 23 with a side of about 250 cm is formed on this formwork 20. Are formed in large numbers. In this case, as shown in FIG. 12, the vertical or horizontal formwork members 2 and 17 can be arranged in a staggered manner. If the formwork 21 assembled in this way is used, two types having different sizes can be used. Blocks are manufactured simultaneously.

  As described above, by appropriately combining the mold members 2 and 17 having different lengths and adjusting and changing the length of one side of the substantially rectangular block manufacturing spaces 18 and 23, the substantially rectangular blocks having different sizes or masses. Can be easily manufactured.

  In this embodiment, as shown in FIG. 11, the scaffold members 24 and 25 can be installed between the respective formwork members 2 and 17 in the vertical and horizontal directions of the respective block manufacturing spaces 23. If comprised in this way, even if it gives vibration to concrete with a vibrator and compacts by putting a person on the scaffold members 24 and 25 and working when placing concrete, the formwork members 2 and 17 Can be prevented in advance.

  FIG. 13 shows an example in which a part of the mold member 2 is replaced with a low overflow formwork member 27. According to this configuration, when the concrete is poured into one of the block manufacturing spaces on both sides sandwiching the overflow mold member 27, the concrete height H reaches the upper surface of the overflow mold member 27, and then poured excessively. The discharged concrete overflows from the overflow formwork member 27 and moves to the other block manufacturing space side. Therefore, all or some of the blocks manufactured in this way have the same height as the overflow formwork member 27 (concrete stop height) and the block thickness. Thus, the thickness (height) of all or a part of the blocks can be accurately and easily adjusted to a constant value only by changing the height of the overflow formwork member 27.

  FIG. 14 shows a configuration in which a box-shaped hollow core 28 is set in the center of a block manufacturing space so that concrete can be placed. According to this, since the hollow hole 29 corresponding in size is formed in the central portion of the block 10 after the hollow core 28 is removed, the hollow hole 29 acts on the central portion of the block 10. Lifting power to be reduced. Furthermore, since this hollow hole 29 can provide an internal space suitable for the survival of animals and plants, the ecological environment compatible type or the natural landscape compatible type block 10 is obtained. As shown in FIG. 15, chestnut, gravel, etc. can be put into the hollow hole 29 depending on the installation conditions.

  The present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones. For example, in the said Example, although the formwork member used the linear thing, it is not limited to this, A meander-like shape, S character shape, or a lightning bolt-like thing can be used. As shown in FIGS. 16 and 17, after placing the concrete 10, when the concrete 10 is in a semi-hardened state, a natural stone 31 or a pseudo stone is placed on the concrete 10, and the concrete is further surrounded around the natural stone 31 and the like. The natural stone 31 and the like can be integrated on the upper surface of the civil engineering block, and the civil engineering block considering the landscape and environmental maintenance can be manufactured.

The top view which shows one Example of this invention and shows a part of formwork. The perspective view of the formwork member concerning one Example. The side view of FIG. The front view which shows the core for connection which concerns on one Example. The side view which shows a part of formwork which concerns on one Example. The top view of the block which concerns on one Example. The side view of the block which concerns on one Example. The aspect which connected the block using the insertion muscle with a loop part which concerns on this invention is shown, FIG. 8A is a top view, FIG. 8B is AA arrow line view of FIG. 8A. The side view which shows the example which applied this invention to the river bank. The top view which shows a part of formwork for manufacturing the small block which concerns on the other Example of this invention. The top view which shows a part of formwork for manufacturing the large sized block which concerns on the other Example of this invention. The top view which shows a part of formwork for manufacturing two types of blocks from which the size which concerns on the other Example of this invention differs. The partial cross section side view which shows the example which uses the formwork member for overflow according to this invention. The top view which shows a part of formwork for manufacturing the block with a hollow hole concerning this invention. The top view of the block with a hollow hole which concerns on this invention. The top view of the block which integrated the natural stone etc. which concern on this invention. The front view of the block which integrated the natural stone etc. which concern on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Formwork 2 Formwork member 3 Core 4 for connection, 6 Lifting hook 5 Connection tool 7 Slit hole 8 Insertion line (anchor member)
10 Civil engineering block 12 Suction prevention sheet 13 Block manufacturing space
16 Formwork 17 Short formwork member 18 Small block manufacturing space 20 and 21 Formwork 23 Large block manufacturing space 24 and 25 Scaffolding member 27 Overflow formwork member 28 Centering core 29 Centering hole

Claims (5)

A method of manufacturing a plurality of substantially rectangular civil engineering blocks, wherein a plurality of formwork members formed in an inverted trapezoidal columnar shape are arranged vertically and horizontally, and adjacent formwork members are connected to each other to form a substantially rectangular shape. In the concrete block manufacturing method for civil engineering, a plurality of block manufacturing spaces are formed, concrete is placed in the block manufacturing spaces and demolded after curing.
Placing the concrete is performed in a state where an anchor member such as a reinforcing bar is set at a location where the plurality of formwork members intersect with each other, whereby the anchor member is integrated with a side surface of the civil engineering block. A concrete block manufacturing method for civil engineering. Pouring before Symbol concrete, by performing at setting the vent core in the box-like to the block manufacturing space, characterized in that the hollowed hole is formed in a central portion of said civil engineering blocks The method for producing a concrete block for civil engineering according to claim 1. The method for producing a concrete block for civil engineering according to claim 1 or 2 , wherein the formwork member is disposed on a bottom surface on which a suction preventing sheet is laid . Some of the formwork member, according to claim 1, 2 or 3, wherein the formed using low profile Yue diverted formwork members for adjusting the droplet設高of the concrete Concrete block manufacturing method for civil engineering. It is constructed using a plurality of concrete blocks produced by the method for producing concrete blocks for civil engineering according to claim 1, 2, 3 or 4 in covering works for various mounds such as river foundation works, floor protection works, coasts, etc. A civil engineering structure characterized by comprising

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