JP2012106348A - Form for manufacturing retaining wall l-type concrete block, and method for manufacturing the retaining wall l-type concrete block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a form for manufacturing retaining wall L-type concrete block for holding a cliff cut off by civil engineering such as a boundary wall of residential land development, a shoulder of a road, etc., or embankment, etc., and a method for manufacturing the retaining wall L-type concrete block.SOLUTION: The form for manufacturing the retaining wall L-type concrete block is composed of a mold frame 15 and a mold frame placing trestle 21. The mold frame 15 includes at least a space for manufacturing a vertical part composing the retaining wall L-type concrete block 10 and an inclined bottom plate continuously provided for the vertical part. The mold frame placing trestle 21 is composed of at least a placing stand along the vertical part and the inclined bottom plate of the mold frame 15 and side walls surrounding a part of periphery of the retaining wall L-type concrete block. Concrete provided for the mold frame 15 and the mold frame placing trestle 21 is removed from the mold frame placing trestle 21 together with the mold frame 15 immediately after primary curing, and secondary curing is carried out at another place.

Description

  The present invention relates to an L-shaped concrete block manufacturing form for retaining walls and an L-shaped concrete for retaining walls used to hold boundary walls for building land, cliffs cut by civil engineering such as road shoulders, or embankments. The present invention relates to a block manufacturing method. In addition, the present invention reduces the cost of formwork when manufacturing an L-shaped concrete block for retaining walls, the operating efficiency of the formwork, and the work efficiency when manufacturing the L-shaped concrete block for retaining walls. The present invention relates to an L-shaped concrete block manufacturing form for a retaining wall that can be improved, and an L-shaped concrete block manufacturing method for a retaining wall with good production efficiency.

  FIGS. 4A and 4B are views for explaining the shape of the retaining wall L-shaped concrete block. 4 (a) and 4 (b), the retaining wall L-shaped concrete block 10 is integrally formed with a vertical wall 11 and an inclined bottom plate 12 bent at a substantially right angle. The vertical wall 11 and the inclined bottom plate 12 are integrally formed with an angle of 105 degrees.

  The vertical wall 11 further includes a fitting projection 112 and a fitting recess 113 on the left and right, and a vertical wall base 111 serving as a fulcrum at the time of construction. Further, the inclined bottom plate 12 includes tapered portions 121 at both ends. The fitting convex portion 112, the fitting concave portion 113, and the both end tapered portion 121 are formed to be convenient when the retaining wall L-shaped concrete block 10 is continuously provided, particularly when it is bent. ing. The figure shown to FIG. 4 (b) is the figure seen from the inner side (banking side) of the L-shaped concrete block 10 for retaining walls. On the inner side of the retaining wall L-shaped concrete block 10, a reinforcing support portion 114 projects as shown.

  FIG. 5 (a) is a diagram for explaining embankment embankment using L-shaped concrete blocks for retaining walls, and (b) is a diagram for explaining a state in which the L-shaped concrete blocks for retaining walls are connected. FIG. In FIG. 5 (a), the retaining wall L-shaped concrete block has the vertical wall 11 vertical, the fitting convex portion 112 in one retaining wall L-shaped concrete block, and the other retaining wall. A continuous wall is manufactured on the land 51 so that the fitting recess 113 in the L-shaped concrete block is fitted to each other. The retaining wall L-shaped concrete block manufacturing form 10 can be earthed by embankment 52 placed on the inclined bottom plate 12 side. When the angle α between the inclined bottom plate 12 and the vertical wall 11 is about 105 degrees, the construction is easy to perform, and the state after construction can be improved. 5 (a) and 5 (b), the L-shaped concrete block for retaining walls is provided with a reinforcing support portion 114 at the center of the interior. The reinforcing support portion 114 is provided with, for example, two tapered holes 115 and 115 ′. A connecting rod 53 for connecting the reinforcing support portion 114 is fitted into the tapered holes 115 and 115 ′. The connecting rod 53 is shaped to be able to support its own weight at the same time as connecting the L-shaped concrete blocks for retaining walls, for example, by making the shape curved upward.

  Further, the retaining wall L-shaped concrete block is described in Japanese Patent Application Laid-Open No. 2007-170153, and includes a fitting recess in the lower part of the vertical wall, and the bottom plate of the vertical wall is fitted to the base. . The L-shaped concrete block for retaining walls has been manufactured using a substantially identical formwork.

JP 2007-170153 A

  The L-shaped concrete blocks for retaining walls described in JP-A-2007-170153 are produced in large quantities using a single formwork. However, the L-shaped concrete block for retaining wall, after placing concrete on the mold, performs primary curing with the mold, and then performs secondary curing such as water curing or steam curing. The method of taking out from a formwork was used.

  The retaining wall L-shaped concrete block is composed of a vertical portion and an inclined bottom plate connected to the vertical portion, and has a considerable size and weight depending on the object of the construction. Therefore, the L-shaped concrete block manufacturing form for the retaining wall becomes a large-scale one, and the work of taking out from the form form after placing and curing concrete has been difficult. Moreover, since the L-shaped concrete block manufacturing form for retaining walls is large, there is a problem that the material cost increases. Further, the L-shaped concrete block manufacturing form for the retaining wall has a problem that productivity is poor because the form form becomes large and it takes time from placing concrete to completion.

  In order to solve the above-described problems, the present invention provides a mold by dividing a concrete mold into a molding mold and a molding mold mounting base in order to manufacture an L-shaped concrete block for a retaining wall. The cost of the entire frame can be reduced, and the production efficiency of the L-shaped concrete block for the retaining wall can be reduced by using a structure in which a plurality of molding frames can be used for one molding frame mounting stand. It is an object of the present invention to provide a retaining wall L-shaped concrete block manufacturing form and a retaining wall L-shaped concrete block manufacturing method capable of saving costs and materials for the frame.

(First invention)
The L-shaped concrete block manufacturing form for retaining wall according to the first invention is for manufacturing a retaining wall used for retaining a cliff or embankment cut out by civil engineering work. A molding frame for placing concrete for producing a retaining wall L-shaped concrete block having at least an inclined bottom plate provided continuously with the portion, and a vertical section of the molding frame and a mounting along the inclined bottom plate A holding frame, a side wall partially surrounding the periphery of the retaining wall holding L-shaped concrete block, and a forming mold frame mounting frame, and the forming mold frame and the forming mold frame mounting frame. It is at least comprised from the space which casts the concrete which shape | molds the L-shaped concrete block for walls.

(Second invention)
The forming mold for producing the L-shaped concrete block for retaining walls according to the second invention is characterized in that a lifting hook is provided on a side portion.

(Third invention)
According to a third aspect of the present invention, there is provided a method for producing a retaining wall L-shaped concrete block for producing a retaining wall used for holding a cliff cut by civil engineering work or embankment, and the like. A vertical part and an inclined bottom plate connected to the vertical part are provided on a forming frame mounting base comprising at least a mounting table along the inclined bottom plate and a side wall surrounding the retaining wall holding L-shaped concrete block. A step of placing a molding frame for placing concrete for producing at least a retaining wall L-shaped concrete block, and placing concrete on the molding frame and the molding frame mounting platform After the primary curing of the concrete and the primary curing of the concrete, the concrete block is lifted together with the molding frame and removed from the molding frame mounting base. A step, characterized in that it is at least composed of a step of secondary curing concrete blocks in the molding frame.

(Fourth invention)
The primary curing in the L-shaped concrete block manufacturing method for retaining walls according to the fourth aspect of the invention is from 2 hours to 3 hours.

  According to the present invention, a plurality of molding molds can be formed on one molding frame mounting base by dividing the molding mold and the molding mold mounting base into a set of molds. Since it can be used, the cost for the formwork can be reduced and the production efficiency can be greatly improved.

  According to the present invention, by providing a plurality of molding molds for a single molding mold mounting stand, a plurality of concrete secondary curing can be performed simultaneously, and apparently shortening the curing time. It is possible to obtain an L-shaped concrete block for retaining walls that is inexpensive and resource-saving as compared to the case of using only one formwork.

  According to the present invention, since the molding frame and the molding frame mounting frame are divided into one mold frame, the movement of the L-shaped concrete block for the retaining wall is facilitated, and the work time, work labor, and work efficiency are increased. Can be improved.

  According to the present invention, when the placed L-shaped concrete block for retaining walls is in a semi-dry state that does not collapse, it can be lifted and moved up and down together with the molding frame, which is excellent in mass production.

It is a perspective view for demonstrating the shaping | molding form frame before placing concrete which is an Example of this invention. Example 1 It is a perspective view for demonstrating the state which set the forming mold on the forming mold mounting base which is an Example of this invention. It is an Example of this invention, and is an exploded perspective view for demonstrating when taking out the shaping | molding formwork in which concrete was laid from the shaping | molding form mounting base. (A) and (B) are diagrams for explaining the shape of the L-shaped concrete block for retaining walls of the present invention. (A) is a figure for demonstrating the earth retaining of the embankment using the L-shaped concrete block for retaining walls, (b) is for demonstrating the state which connected the said L-shaped concrete block for retaining walls .

(First invention)
The L-shaped concrete block manufacturing form for retaining walls according to the first invention is an L-shaped retaining wall used for retaining boundary walls for building land, cliffs cut by civil engineering work such as road shoulders, or embankments. It is for manufacturing concrete blocks. The L-shaped concrete block manufacturing form for retaining walls of the present invention can improve the efficiency of use of the form and the production efficiency of the L-shaped concrete block for retaining walls by efficiently using the form. It is.

  The L-shaped concrete block manufacturing mold for retaining walls of the first invention is roughly composed of a molding mold and a molding mold mounting base. The forming mold has at least a space for manufacturing a vertical portion constituting an L-shaped concrete block for a retaining wall and an inclined bottom plate connected to the vertical portion. The forming mold mounting base is at least composed of a mounting base along the vertical portion of the forming mold and the inclined bottom plate, and a side wall partially surrounding the retaining wall holding L-shaped concrete block.

  The molding frame is placed on the molding frame mounting platform. In this state, a space for placing concrete for forming the retaining wall L-shaped concrete block is formed in the forming mold and the forming mold mounting platform. Immediately after the primary curing (a semi-dry state where the shape of the concrete does not collapse), the concrete placed on the forming mold and the forming mold mounting base is removed from the forming mold mounting base together with the forming mold. Then, secondary curing is performed in another place. The next molding frame is placed on the molding frame mounting platform, and concrete is placed to manufacture the next retaining wall L-shaped concrete block. The retaining wall L-shaped concrete block forming mold is prepared by preparing a plurality of forming molds for one forming mold mounting base, thereby obtaining a plurality of retaining wall L-shaped concrete blocks. It became possible to mold in a short time.

  The L-shaped concrete block manufacturing mold for retaining wall of the present invention is not only improved in use efficiency but also in a large amount in a short time by using the molding mold and the molding mold mounting base separately. Production becomes possible. The forming mold is necessary from the placement of concrete until the end of secondary curing to the final product. However, since the molding frame mounting platform can manufacture an L-shaped concrete block for a retaining wall using a plurality of molding frames, not only the productivity is improved, but also the production cost is reduced. This can contribute to cost reduction and form material cost savings.

(Second invention)
The retaining wall L-shaped concrete block manufacturing form of the second invention is provided with a lifting hook on the side of the forming form. The mold is placed in a concrete and is semi-dried, and is easily moved to a place where secondary curing is performed by using the lifting hook to remove the mold from the mounting frame. Can do.

(Third invention)
The L-shaped concrete block manufacturing method for retaining walls according to the third aspect of the present invention is an L-shaped concrete for retaining walls used for retaining boundary walls for building land, cliffs cut by civil engineering work such as road shoulders, or embankments. It relates to a method of manufacturing a block. The method for producing a retaining wall L-shaped concrete block of the present invention can provide a retaining wall L-shaped concrete block in a short time, efficiently and with good quality.

  The method for producing an L-shaped concrete block for a retaining wall according to the present invention includes a step of placing a molding die on a molding die mounting base and a step of placing concrete on the molding die and the molding die mounting base. And a step of performing primary curing, a step of removing the molding frame from the molding frame mounting base, and a step of secondary curing of the concrete block.

  In the first step of the present invention, the molding frame is placed on a molding frame mounting base, thereby surrounding the retaining wall holding L-shaped concrete block provided with a vertical portion of the molding frame and an inclined bottom plate. A side wall is constructed. The mold formed of the mold and the mold mounting base is the same type as the retaining wall L-shaped concrete block including at least a vertical portion and an inclined bottom plate provided continuously to the vertical portion. In the next step, concrete is placed on a mold formed of the mold and the mold mounting base.

  The concrete placed on the forming mold and the forming mold mounting base is subjected to primary curing. When the concrete is in a state where a certain degree of hardness can be maintained by primary curing, the concrete block is lifted together with the molding frame and removed from the molding frame mounting platform. The concrete block that has been placed on the molding form and has undergone primary curing is moved to the water tank together with the molding form and subjected to secondary curing (for example, water curing). The concrete block that has been subjected to the secondary curing is taken out of the mold and becomes the final L-shaped concrete block for the retaining wall.

(Fourth invention)
In the L-shaped concrete block manufacturing method for retaining walls according to the fourth aspect of the invention, the primary curing is performed for 2 hours to 3 hours, and then the concrete block is moved only by the forming mold to perform secondary curing. Since the concrete block can be performed by transferring the secondary curing to a place different from the mold frame mounting base, a plurality of concrete blocks can be manufactured with one mold frame mounting base.

  FIG. 1 is a perspective view for explaining a forming mold before placing concrete according to an embodiment of the present invention. FIG. 2 is a perspective view for explaining a state in which the forming mold is set on the forming mold mounting platform which is an embodiment of the present invention. FIG. 3 shows an embodiment of the present invention, and is an exploded perspective view for explaining a case where a molding frame on which concrete is cast is taken out from the molding frame mounting base. The retaining wall L-shaped concrete block of the present invention is used to hold a boundary wall for residential land development, a cliff cut by civil engineering work such as a road shoulder, or embankment.

  The L-shaped concrete block manufacturing form for retaining walls according to the present invention will be described with reference to FIGS. The forming mold 15 shown in FIG. 1 and the forming mold mounting base 21 shown in FIG. 2 are integrated to form a mold for manufacturing an L-shaped concrete block for retaining walls. The forming mold 15 is a space in which the vertical portion 11 constituting the retaining wall L-shaped concrete block 10 and the inclined bottom plate 12 connected to the vertical portion 11 can be manufactured (portions 151 and 152 in FIG. 3). At least. The forming mold 15 is provided with a taper pin 157 at a reinforcing support portion forming portion. When the concrete not shown is placed, even if the mold 15 is coated with a release agent, it does not move from the mold by the taper pin 157 during the movement after the primary curing. . When the concrete is taken out from the mold 15 after the secondary curing, the concrete is taken out after removing the taper pins 157.

  The forming mold 15 is composed of a mold capable of forming the retaining wall L-shaped concrete block 10 shown in FIG. In particular, the molding frame 15 includes a reinforcing support portion molding 154 for molding the reinforcing support portion 114 and an inclined bottom plate surrounding portion 155 for molding the inclined bottom plate 12. Further, the forming mold 15 is provided with lifting hooks 153 and 153 'at four places so that concrete can be cast and the concrete block can be carried after the primary curing. The concrete block after primary curing (semi-dried to the extent that the shape does not collapse) can be easily lifted up to a predetermined place by using the lifting hooks 153, 153 'together with the forming mold 15 by a crane or the like. In addition, it can be moved in a short time.

  2 and 3, the forming mold mounting platform 21 includes a support frame 211, U-shaped side molding plates 212, 213 and a top molding plate 214 provided on the upper part of the support frame 211, It is comprised at least from the baseplate shaping | molding lid | cover 215 and the reinforcement part 218 provided in right and left. The support frame 211 is configured with a reinforcing member as shown in the figure, but it can be configured not only to change the state of the framework but also to cover the periphery with a plate-shaped member.

  For example, as shown in FIG. 3, the side forming plates 212 and 213 can be opened in the left-right direction by a hinge 216. The hinge 216 is opened when the forming mold 15 is moved, and facilitates the work of lifting the forming mold 15 together with the retaining wall L-shaped concrete block with a crane or the like. The side molding plates 212 and 213 and the top molding plate 214 are U-shaped, and include a vertical wall molding die 151 that can mold the vertical wall 11 of the molding die 15.

  The inclined bottom plate forming mold part 152, together with the inclined bottom plate forming lid 215, forms the inclined bottom plate 12 of the retaining wall L-shaped concrete block. The forming mold 15 can share a part of the part for manufacturing the retaining wall L-shaped concrete block 10 with the forming mold mounting base 21, so that it is lightweight, and a material for manufacturing is used. Can be saved.

  3 mounts the forming mold frame 15 on a forming mold frame mounting portion 219 provided on the upper portion of the support frame 211. The forming mold frame 15 and the forming mold frame mounting base 21 are not necessarily limited to FIGS. 1 to 3 as long as a mold frame capable of forming the retaining wall L-shaped concrete block 10 shown in FIGS. The design does not have to be as shown in FIG.

  Next, the manufacturing method of the L-shaped concrete block for retaining walls of this invention is demonstrated. First, the molding die 15 is placed on the molding die placing stand 21. The forming mold mounting base 21 is integrated with the forming mold 15 to be a form of the L-shaped concrete block 10 for retaining walls. Concrete is placed on the mold 15 and the mold mount 21. The placed concrete is subjected to primary curing to be in a semi-dry state where the shape can be maintained.

  The concrete after the completion of the primary curing is lifted by the lifting hooks 153 and 153 ′ in the state of entering the forming mold 15 and is removed from the forming mold mounting platform 21. The concrete block that has entered the forming mold 15 moves to a predetermined place in the above state and performs secondary curing. On the forming mold mounting base 21, another forming mold 15 is mounted and concrete is newly placed. By repeating this, by preparing a plurality of forming molds 15 for one forming mold mounting base 21, production time is shortened, work efficiency is improved, and formwork members are saved. be able to.

  The time required for the primary curing after placing concrete on the molding die 15 and the molding die mounting base 21 was 2 to 3 hours. The primary curing for 2 to 3 hours is semi-dried by the mold consisting of the molding mold 15 and the molding mold mounting base 21, and the molding mold 15 and the concrete are transferred from the molding mold mounting base 21. The block can be removed and moved to a place where secondary curing is performed. The retaining wall L-shaped concrete block forming mold is prepared by preparing a plurality of forming molds 15 for one forming mold mounting base 21, thereby providing a plurality of retaining wall L-shaped concretes. The block 10 can be formed in a short time.

  As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to the said Example. The present invention can be modified in various ways without departing from the scope of the claims. The forming mold frame and the forming mold frame mounting base of the present invention can be arbitrarily changed in size, shape and the like. The method of assembling and the detailed structure of the forming mold frame and the forming mold mounting base of the present invention can be arbitrarily changed.

DESCRIPTION OF SYMBOLS 10 ... L-shaped concrete block for retaining walls 11 ... Vertical wall 111 ... Vertical wall base 112 ... Fitting convex part 113 ... Fitting concave part 114 ... Reinforcement support part 115,115 '... tapered hole 12 ... tilted bottom plate 121 ... tapered portion 15 ... molding frame 151 ... vertical wall molding mold unit 152 ... tilted bottom plate molding mold unit 153, 153' ··· Lifting hook 154 ··· Reinforcement support portion molding portion 155 ··· Inclined bottom plate surrounding portion 157 ··· Tapered pin 21 ··· Forming frame mounting base 211 ··· Support frame 212, 213 ··· Part forming plate 214 ... Top forming plate 215 ... Inclined bottom plate forming lid 216 ... Hinge 217 ... Hook (fixed fastener)
218 ... Reinforcing part 219 ... Molding frame mounting part 53 ... Connecting rod

Claims (4)

In the L-shaped concrete block manufacturing form for retaining walls, which manufactures retaining walls used to hold cliffs or embankments cut by civil engineering work,
A molding mold for placing concrete for producing a retaining wall L-shaped concrete block comprising at least a vertical portion and an inclined bottom plate connected to the vertical portion;
A molding frame mounting platform comprising at least a mounting table along a vertical portion and an inclined bottom plate of the molding frame, and a side wall partially surrounding the periphery of the retaining wall holding L-shaped concrete block;
A space for placing concrete for forming a retaining wall L-shaped concrete block by the forming mold frame and the forming mold mounting platform;
An L-shaped concrete block manufacturing form for a retaining wall, comprising at least   The L-shaped concrete block manufacturing mold for retaining walls according to claim 1, wherein a lifting hook is provided on a side portion of the molding mold. In the L-shaped concrete block manufacturing method for retaining walls, which manufactures retaining walls used for retaining cliffs or embankments cut by civil engineering work,
The vertical part and the vertical part include a vertical part and a vertical part of the molding frame, and a vertical part and the vertical part, each of which is composed of a mounting table along the inclined bottom plate and a side wall surrounding the retaining wall holding L-shaped concrete block. Placing a forming mold for placing concrete for producing an L-shaped concrete block for a retaining wall having at least an inclined bottom plate continuously provided on the wall;
Placing concrete on the mold and the mold mounting base, and performing primary curing;
After the primary curing of the concrete is finished, the concrete block is lifted together with the molding frame and removed from the molding frame mounting base;
Secondary curing of the concrete block in the mold,
A method for producing an L-shaped concrete block for a retaining wall, comprising:   The said primary curing is 2 to 3 hours, The L-shaped concrete block manufacturing method for retaining walls described in Claim 3 characterized by the above-mentioned.

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