KR101907676B1 - Combining concrete mold for manufacturing precast concrete wall include variable concrete mold for precast concrete wall, method for manufacturing precast concrete wall using combining concrete mold, precast concrete wall constructed by this method, and method for constructing this precast concrete wall - Google Patents

Abstract

The present invention relates to a composite concrete mold for manufacturing a precast concrete retaining wall, a method for manufacturing a precast concrete retaining wall, a precast concrete retaining wall manufactured thereby, and a construction method thereof. It is an object of the present invention to manufacture retaining walls with various heights using one variable mold for common use. The composite concrete mold for manufacturing a precast concrete retaining wall according to the present invention comprises: a variable concrete mold (10) for a precast concrete retaining wall, which has a cover body, a width adjusting plate, an upper cover, and a position adjuster; a plurality of permanent concrete molds (20) for a precast concrete retaining wall having wall body parts and lower plate parts; a connector (30) for connecting the variable concrete mold for a precast concrete retaining wall and the permanent concrete mold for a precast concrete retaining wall.

Description

TECHNICAL FIELD [0001] The present invention relates to a composite concrete mold for manufacturing a precast concrete retaining wall, a method of manufacturing a precast concrete retaining wall using the same, a precast concrete retaining wall manufactured by the method, and a method of constructing the precast concrete retaining wall. , METHOD FOR MANUFACTURING PRECAST CONCRETE WALL USING COMBINING CONCRETE MOLD, PRECAST CONCRETE WALL CONSTRUCTED BY THIS METHOD, AND METHOD FOR CONSTRUCTING THIS PRECAST CONCRETE WALL}

The present invention relates to a mold for precast concrete retaining wall, more specifically, it is easy to manufacture a precast concrete retaining wall in accordance with the diversity of the upper end of a retaining wall according to a construction site, and also only a permanent mold The present invention relates to a composite concrete mold for manufacturing a precast concrete retaining wall and a method for manufacturing precast concrete retaining wall using the same, and a method of constructing the precast concrete retaining wall manufactured by the method will be.

In general, retaining walls are constructed for slope stabilization in slopes of roads and railways, river embankments, slopes of coastal roads and residential areas, and they are divided into on-site retention type walls and precast concrete type retaining walls.

 The cast-in-place type retaining wall has a drawback that the air is very long because it is subjected to processes such as formwork installation, foundation concrete installation, reinforcement installation, and concrete installation work. The concrete casting wall placed on the spot is subjected to reinforcement laying work on the basis of the longitudinal drawing prepared by the design in the field, and after the form is installed, the concrete is laid. However, in order that the concrete can stand self- A long period of curing is needed, and after curing, the work must be done to demould form, so the air is very long. Such a long air is economically disadvantageous, and in the case where there is a road nearby, there is a problem in that it can cause a great loss in societies due to problems such as control of vehicle traffic or securing a bypass road.

In addition, when the height of the wall portion is high, the main body concrete may not be laid at a time, which may cause problems in the synthesis of the concrete.

A precast concrete type retaining wall is proposed to solve some of these problems.

The precast concrete type retaining wall is a method of constructing a retaining wall by using precast retaining wall segments. The retaining wall segment is constituted by a bottom portion and a wall portion which is erected on the upper portion of the bottom portion. After the retaining wall segments having such a structure are arranged in a row, the retaining wall is constructed by binding using a tensile material or the like, Is very short and economical.

A retaining wall in which the entire lower portion of the precast panel-type wall is inserted into the front end groove on a precast rectangular base plate on which a rectangular U-shaped front end groove is formed on the upper surface, A rear wall of the front end of the plate is further provided with a side wall for supporting a lower portion of the wall, one end of the block out portion formed on the upper surface of the side wall is embedded in one side of the block out portion, And the end portions of the wall joint member protruding from the rear wall of the wall are connected to each other by a connecting hole including a coupler, corresponding to the sub-wall connecting material exposed to the inside of the out portion.

The retaining wall according to the prior art is divided into a forward retaining wall (parallel to the bottom plate) and an inclined retaining wall (upper end is inclined) according to the inclination of the upper end, and the angle of the upper end, the height of the wall, However, conventionally, there is a problem that the manufacturing costs and management (storage, etc.) costs of the formworks are increased because the precast retaining walls having various structures are manufactured by using the individual formwork without using the form commonly used for various inclines and sizes.

Registration Utility Model No. 20-0404658

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a precast concrete retaining wall which is easy to manufacture in accordance with the diversity of the upper end of the retaining wall according to the construction site, The present invention relates to a composite concrete mold for manufacturing a precast concrete retaining wall and a precast concrete retaining wall manufactured by the method, and a method of constructing the precast concrete retaining wall using the same. .

A variable concrete mold for a precast concrete retaining wall according to the present invention includes: a mold body having a structure in which an open portion capable of pouring concrete is installed and the rest is closed; The upper end of the retaining wall may be set in a forward or an oblique direction by raising and lowering at least one side of the longitudinal direction of the top cover so as to be angularly adjustable inside the mold main body.

The method for manufacturing a precast concrete retaining wall using a composite concrete mold for a precast concrete retaining wall according to the present invention is characterized in that the method for manufacturing a precast concrete retaining wall using a composite concrete mold for a precast concrete retaining wall is characterized in that the preformed concrete mold for a precast concrete retaining wall and the permanent type concrete for a precast concrete retaining wall A first step of making an angle of the top cover of the variable concrete mold for the precast concrete retaining wall to an angle corresponding to the upper end of the precast concrete retaining wall; A second step of pouring concrete into a placement space of the composite concrete mold for precast concrete retaining wall completed through the first step; And a third step of manufacturing a precast concrete retaining wall by demolding the composite concrete mold for the precast concrete retaining wall after curing of the concrete poured through the second step.

According to the present invention, a composite concrete mold for manufacturing a precast concrete retaining wall, a precast concrete retaining wall manufacturing method using the same, a precast concrete retaining wall manufactured by the method, and a method of constructing the precast concrete retaining wall, Height, and angle), and the precast concrete retaining wall is manufactured through the variable mold to reduce the cost due to the commonality. In addition, since the molds are handled (stored, etc.) The problem (cost burden for securing a large site) is solved.

Also, one variable mold is used for permanent molds of different heights and the cost is also reduced.

1 is a perspective view of a variable concrete mold for precast concrete retaining walls according to the present invention.
2 to 4 are views showing positions and angles of a top cover applied to a variable concrete mold for a precast concrete retaining wall according to the present invention, respectively.
5 is a view showing a width adjusting plate applied to a variable concrete mold for a precast concrete retaining wall according to the present invention.
6 is a perspective view of a composite concrete mold for a precast concrete retaining wall according to the present invention.
7 to 9 are views showing embodiments of a composite concrete mold for a precast concrete retaining wall according to the present invention, respectively.
10 and 11 are perspective views of a precast concrete retaining wall manufactured using a composite concrete mold for precast concrete retaining wall according to the present invention, respectively.
12 is a perspective view showing construction of a precast concrete retaining wall according to the present invention.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

<Variable Concrete Mold for Precast Concrete Retaining Wall>

1, the variable concrete mold 10 for a precast concrete retaining wall according to the present invention comprises a mold main body 11 having a concrete installation space therein, and an angle adjustable inside the mold main body 11 And a top cover 12 which is mounted to the mold body 11 and forms a top surface of a concrete (retaining wall) to be placed in the mold main body 11.

The mold main body 11 is configured to have a hollow space in which the inside of the mold is sealed with the outside (except for the open portion for pouring concrete), and the concrete retaining wall has a rectangular cross- A bottom portion of the rectangle, and four wall portions erected on the periphery of the bottom portion. Here, when the mold 10 of the present invention is used with other molds, the bottom portion is not used.

The left and right sides (narrow sides on both sides) of the wall portion are constituted by a rail 13 for supporting the top cover 12. [ The rail 13 supports both the left and right sides of the top cover 12 and is also capable of guiding the sliding of the top cover 12. The protrusion 13a preferably corresponds to the protrusion 13a The left and right sides of the top cover 12 are formed with a groove 12a. Through such a concavo-convex structure, the top cover 12 is stably supported and slid without twisting.

The mold main body 11 is made of various materials such as steel, synthetic resin, wood, etc., and the bottom portion and the four wall portions are assembled, and the four wall portions are also made of two broad planar plates and two narrow planar profiles (The above-described rail 13) can also be used.

1 shows the mold main body 11 as being only the upper side of the retaining wall, it can also be configured as having a wall, a bottom plate and a sub-wall.

The retaining wall may include a sub-wall. At this time, the mold main body 11 is configured to form a sub-wall for forming the sub-wall.

Reinforcement of the reinforcing bars is possible in the inside of the mold main body 11, and this work can be variously carried out and can be practiced by those skilled in the art, so a detailed description thereof will be omitted.

The upper lid 12 is a material for determining the upper end of the concrete retaining wall, and is for elevating the upper end of the concrete retaining wall in forward and oblique directions (bidirectional), and is mountable and adjustable in the mold main body 11 so as to be adjustable in angle.

The top cover 12 is preferably applied together with the positioning opening 14 so as to be freely changeable in various positions.

The position adjuster 14 adjusts the height and the angle of the top cover 12 by elevating and lowering the top cover 12 while the user elevates the top cover 12. Specifically, the position adjusting hole 14 is formed as a bolt having a thread on the periphery thereof.

The bolt-type position adjusting port 14 is screwed to the support plate 15 formed on the upper portion of the mold main body 11 (the nut portion is constituted by the support plate 15), and two of them are spaced apart at a predetermined interval .

The position adjuster 14 is connected to the top cover 12 so as not to interfere with the height adjustment of the top cover 12 and the angle adjustment. For example, the bottom end is hingedly connected to the top cover 12 via the shaft pin. Therefore, when the two positioning guides 14 are elevated and lowered at different heights to adjust the angle of the top cover 12, the top cover 12 hinges and maintains the angle without causing any breakage. The connection between the position adjusting port 14 and the top cover 12 is not limited to this, but may be connected through a flexible wire, a chain, or the like.

When the two position adjusting openings 14 are used and the top cover 12 is connected to the two position adjusting openings 14 without being connected to the mold main body 11 so as to be in a free state, The height can be adjusted and the angle can be adjusted.

2 shows the height adjustment of the top cover 12. When the two position adjustment ports 14 are adjusted to the same height, the top cover 12 is adjusted in height while maintaining a state parallel to the bottom.

3 and 4 show a state in which the top cover 12 is tilted in both directions. Fig. 3 shows a state in which the position adjusting opening 14 on the right side of the position adjusting opening 14 on the left side in the figure is lowered, FIG. 4 is a view of the upper cover 12 being inclined downward to the left in the reverse of FIG. 3.

The height of the two positioning pins 14 can be finely adjusted and the upper cover 12 can be adjusted in a wide angular range because a large width adjustment is possible between them.

The left and right widths of the top lid 12 are changed by adjusting the various angles of the top without changing the size of the mold main body 11. [ That is, the top cover 12 is longer in the left and right widths in the oblique direction than in the forward direction.

In this case, it is possible to use the top cover 12 of the left and right widths corresponding to the angle. However, this requires a replacement operation of the top cover 12, which causes inconvenience. To solve this problem, And is adjustable in width.

For example, the top cover 12 is composed of a cover body 12-1 and a width adjusting plate 12-2.

The lid body 12-1 has a width occupying a large portion of the top cover 12, and the position adjustment port 14 is connected.

The width adjusting plate 12-2 can be applied to at least one side (both shown in the figure) of the left and right sides of the lid body 12-1, and preferably, the lid body 12-1 is reciprocated And is movably connected. For example, by forming rails in grooves or outside in the lid body 12-1 and attaching the width adjusting plate 12-2 to the grooves or rails to pull out or insert the width adjusting plate 12-2, Adjust.

The width of the width adjusting plate 12-2 can be adjusted by manually pulling the width adjusting plate 12-2 outward or pushing it inward to adjust the width. At this time, in addition, a bolt-type fastener may be applied so that the width adjusting plate 12-2 maintains the width adjusting state. The tightening tool is screwed to the lid body 12-1 and fixed by pressing the inner width adjusting plate 12-2.

Alternatively, it is also possible that the width adjusting plate 12-2 is allowed to protrude / retract naturally when adjusting the position by the position adjusting opening 14. For example, as shown in Fig. 5, For example, a coil spring 12-3 is mounted as an elastic member, and a width adjusting plate 12-2 is inserted into the groove.

The width adjusting plate 12-2 is always in close contact with the inner surface of the mold main body 11 by the elastic force of the coil spring 12-3 regardless of its position, And the width is naturally adjusted by being inserted into the groove or being pulled out in the opposite direction.

A gasket can be applied to the periphery of the lid body 12-1 and the periphery of the width adjusting plate 12-2 to prevent leakage of concrete. The gasket is a belt made of an elastic material such as rubber. The gasket may have a structure in which a space is formed in the inside of the mold body 11 to prevent leakage of the concrete and to help elastic deformation by being closely attached to the inner surface of the mold body 11 by self-

<Precast Concrete Composite Concrete Mold for Retaining Wall>

6, the composite concrete mold 100 for a precast concrete retaining wall according to the present invention comprises a variable concrete mold 10 (hereinafter abbreviated as 'variable mold') for precast concrete retaining wall and a pre- And a permanent concrete mold 20 (hereinafter referred to as &quot; permanent mold &quot;) for a cast concrete retaining wall.

The variable mold 10 has been described above and has an open structure with no bottom to connect with the permanent mold 20 to form one pouring space.

According to the present invention, the shape of the upper end of the retaining wall is matched by using the variable mold 10, and the shape of the upper end of the retaining wall is adjusted through the permanent mold 20 20-4, 20-2, 20-3, 20-4, 20-2, 20-3, 20-4, 20-2, 20-3, 20-4, 20-2, 20-3, 20-4, 20-5 may be combined with one kind of variable mold 10 to construct retaining walls of different heights.

The permanent mold 20 is structured such that a wall portion and a bottom plate portion are structurally formed, and a space is opened inside the variable mold 10, and a sub-wall portion can additionally be formed.

When the precast retaining wall manufactured by the present invention is connected to a front end block to be described later, the permanent mold 20 has a plurality of reinforcing bars for withdrawing the reinforcing bars therein.

At least one connecting hole 30 is formed for assembling the variable mold 10 and the permanent mold 20. The connector 30 is applied to one or more of the back and both sides.

For example, the connector 30 has first and second connecting pieces 31 and 32 that are fixed (welded, piece-fitted) to the joint side of the variable mold 10 and the permanent mold 20, (Bolts, nuts, clamps, and the like) for detachably coupling the first and second fasteners 31 and 32.

The first and second connecting pieces 31 and 32 can have any structure having a portion that is in surface contact with the variable mold 10 and a portion that is in contact with the permanent mold 20 and a portion that is coupled to each other through the fastener 33.

An open part for pouring concrete is formed at least one side of the variable mold (10) and the permanent mold (20). The opening portion is not limited to a specific position.

The present invention makes it possible to manufacture retaining walls of various heights and various tops by combining permanent mold 20 of various sizes and single variable mold 10.

<Precast concrete retaining wall manufacturing>

The precast concrete retaining wall manufacturing method using the composite concrete mold for precast concrete retaining wall according to the present invention comprises a process of assembling a composite concrete mold 100 (top cover adjustment), concrete casting, and demolding after curing.

 1. Composite concrete mold assembly.

The upper mold 12 of the variable mold 10 is aligned with the upper end of the retaining wall. The position adjustment of the top cover 12 is performed through the position adjustment opening 14 as described above. The position of the top cover 12 can be adjusted both before and after the assembly of the variable mold 10 and the permanent mold 20.

The variable mold 10 and the joint 20 of the permanent mold 20 are stuck to each other and are assembled to each other by using the connector 30.

2. Concrete pouring.

Concrete is poured into a pouring space inside the composite concrete mold (100).

3. Demolition.

It is preferable to demold the composite concrete mold 100 after the curing of concrete by separating the variable mold 10 and the permanent mold 20 from each other.

<Precast Concrete Retaining Wall>

10 and 11 are perspective views illustrating a precast retaining wall according to the present invention. A plurality of retaining walls 200-1, 200-2, 200-3, 200-4, and 200-5 includes a wall 210, a bottom plate 220, And the height of the wall 210 is different due to the difference of the above-described permanent molds.

Also, as shown in Fig. 10, the upper end of the retaining wall is formed in a forward direction, and the upper end of the retaining wall may be formed in an oblique direction, as shown in Fig.

The pre-cast concrete retaining wall is constituted by interlocking portions of a concave-convex structure on both sides so that neighboring ones are interlocked with each other. Of course, the interlocking portion is made of a mold.

<Precast Concrete Retaining Wall Construction Method>

The method of constructing a precast concrete retaining wall according to the present invention is characterized in that the precast concrete retaining wall is formed by a process of a precast concrete retaining wall mounting (after ground clearance and compaction) -backing, a precast concrete retaining wall mounting, a shear block installation, An example is possible.

Retaining walls and backfill can be practiced by those skilled in the art, so a detailed description thereof will be omitted.

12, the front end block 300 is installed on the rear side of the retaining wall 200 and is integrally formed with the retaining wall 200 to generate a compressive force by a large shear force. Thus, the bottom plate 220 of the retaining wall 200, Which helps to manufacture, store and transport.

The front end block 300 is a reinforced concrete block in which the inner reinforcing bars protrude to the outside, and the retaining walls 200 are also manufactured such that the inner reinforcing bars protrude to the outside.

The step of installing the front end block is a step of installing the front end block 300 at a predetermined distance behind the bottom plate of the retaining wall 200.

The reinforcing bars 240 and 310 of the retaining wall 200 and the front end block 300 are absent from the reinforcing bars and the reinforcing concrete is formed by pouring concrete. In this case, the number of the front end blocks 300 is not limited to 1: 1 corresponding to the number of the retaining walls 200, and it is also possible that one front end block 300 is connected to two or more retaining walls 200.

It is also possible that the composing part is composed only of the reinforcing joint between the retaining wall 200 and the front end block 300 and the concrete, and that the synthetic reinforcing bar 400 is used for securing a great rigidity.

The synthetic reinforcing bars 400 are bonded to the reinforcing bars 240 and 310 of the retaining wall 200 and the front end block 300 while being laid along the retaining walls 200 in the space between the plurality of retaining walls 200 and the front end block 300, Thereby forming a retaining wall structure in which all the retaining walls 200 and the front end blocks 300 are integrally combined.

Therefore, the retaining wall structure produces a large supporting force as a single body, so that the reinforcement effect is very excellent.

10: Precast concrete Variable concrete mold for retaining wall,
11: Mold body, 12: Top cover
13: rail, 14:
100: Precast Concrete Composite concrete mold for retaining wall,
200: Precast concrete retaining wall,
300: shear block,

Claims (14)

A mold main body having a structure in which the remaining portion is closed and a right and left width adjustable so that both the left and right sides are in contact with the opposing surfaces of the mold main body, An upper cover including a width adjusting plate which is installed to be able to protrude more than one side and an elastic member which makes the width adjusting plate come into close contact with the inner surface of the mold main body through an elastic force, And a position adjuster for setting the upper end of the retaining wall in a forward direction or an oblique direction;
A wall portion connected to a bottom portion of the variable concrete mold for the precast concrete retaining wall and a bottom plate portion extending from a bottom portion of the wall portion and having a space opened toward the variable concrete mold for the precast concrete retaining wall, A plurality of precast concrete retaining wall permanent molds for retaining walls 20;
And a connecting port (30) connecting the variable concrete mold for precast concrete retaining wall and the permanent concrete mold for precast concrete retaining wall,
The connector has first and second connecting pieces (31, 32) fixed to the joint sides of the variable concrete mold for precast concrete retaining wall and the permanent concrete mold for precast concrete retaining wall, Wherein the fastening means comprises:
A precast concrete retaining wall composed of a wall and a bottom plate is constructed by pouring concrete into the variable concrete mold for the precast concrete retaining wall and the permanent type concrete mold for the precast concrete retaining wall. The precast concrete retaining wall for the precast concrete retaining wall A permanent concrete mold for a precast concrete retaining wall and a variable concrete mold for a precast concrete retaining wall selected according to a construction site are assembled and the upper cover of the variable concrete mold for a precast concrete retaining wall is adjusted in various sizes And a retaining wall of a warp,
And a rail including a protrusion formed on both left and right sides of the mold main body applied to the variable concrete mold for precast concrete retaining wall, wherein the upper lid includes a groove portion slidably fitted in the projecting portion of the rail. Concrete mold for precast concrete retaining wall. delete delete delete delete delete delete delete delete A precast concrete retaining wall manufacturing method using a composite concrete mold for precast concrete retaining wall according to claim 1,
A permanent cast concrete mold for a precast concrete retaining wall is selected from a plurality of precast concrete retaining wall concrete casting molds of different sizes, and a permanent concrete mold for the selected precast concrete retaining wall and a variable concrete for precast concrete retaining wall A first step of connecting the mold to a connection port to form a single pouring space, the angle of the top cover of the variable concrete mold for the precast concrete retaining wall being adjusted to an angle corresponding to the upper end of the precast concrete retaining wall;
A second step of pouring concrete into a placement space of the composite concrete mold for precast concrete retaining wall completed through the first step;
And a third step of preparing a precast concrete retaining wall by demolding the composite concrete mold for the precast concrete retaining wall after curing of the concrete poured through the second step. A Method of Manufacturing Precast Concrete Retaining Wall Using Mold. The precast concrete retaining wall according to claim 10, wherein the precast concrete retaining wall is manufactured by a method of manufacturing precast concrete retaining wall using a composite concrete mold for precast concrete retaining wall. A method of constructing a precast concrete retaining wall according to claim 11,
A first step of placing the precast concrete retaining wall on the ground after selecting the ground;
And a second step of backfilling the back wall of the precast concrete retaining wall, which has been placed through the first step, with a filler material. A method of constructing a precast concrete retaining wall according to claim 11,
A first step of placing the bottom plate of the precast concrete retaining wall on the ground and mounting the bottom plate after selecting the ground;
A second step of mounting a front end block made of precast concrete at regular intervals behind the bottom plate of the precast concrete retaining wall;
The reinforcing bars are placed in a space between the precast concrete retaining wall and the front end block, and the concrete is laid on-site, so that the precast concrete retaining wall and the front end block are integrally formed A third step of synthesizing;
And a fourth step of backfilling the back wall of the precast concrete retaining wall with the filler after the third step. [14] The method of claim 13, wherein the first step comprises arranging a plurality of precast concrete retaining walls in a row along the lateral direction, and the third step is to bind the plurality of precast concrete retaining walls between the precast concrete retaining wall and the front end block And a plurality of pre-cast concrete retaining walls are integrally formed through the combining portion by integrally forming a composite portion by placing concrete after joining the reinforcing bars.

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