KR102074487B1 - Concrete wall using concrete mold and method for constructing the sme - Google Patents

Abstract

The present invention relates to a concrete wall using a concrete formwork and a construction method thereof, the present invention comprises a plurality of piles embedded in a line in the ground to be constructed wall; A plurality of front side concrete plates arranged to form the same surface on one side of the piles; A plurality of rear side concrete plates arranged to form the same surface on the other side of the piles at intervals from the front side concrete plates; A plurality of gap maintaining units for fixing the front and rear concrete plates so that the gap between the front concrete plates and the rear concrete plates is maintained; And filling concrete filled with concrete between the front concrete plates and the rear concrete plates. The gap maintaining unit includes fastening holes provided in the front and rear concrete plates, respectively, and the front and rear surfaces. A stud bolt inserted through the fastening hole of the side concrete plate and having male threaded portions at both ends, a fastening nut fastened to one male threaded portion of the stud bolt to support the concrete plate at the front side, and the other male threaded portion of the stud bolt; It includes a fastening nut fastened to the support for the concrete plate on the back side. According to the present invention, it is possible to easily secure the construction stability of the concrete wall, it is possible to install the economical structure by reducing the construction material and construction time.

Description

Concrete wall using concrete formwork and its construction method {CONCRETE WALL USING CONCRETE MOLD AND METHOD FOR CONSTRUCTING THE SME}

The present invention relates to a concrete wall using a concrete formwork and a construction method thereof.

In order to make efficient use of land, concrete walls (retaining walls) are installed on slopes of cuts and cuts, river banks, coastal roads, or residential areas of roads and complexes, and soundproofing of residential complexes next to roads. Concrete walls are constructed.

Republic of Korea Patent No. 10-1281770 (2013.07.05. Announcement Day) (hereinafter referred to as prior art 1) installed the foundation files in a row in a line and pre-cast pre-fabricated foundation on the foundation files embedded in the ground Disclosed is a precast straight wall foundation and a construction method for constructing a wall by combining the same. However, the prior art 1 has a disadvantage in that the connection between the precast straight wall foundation and the foundation piles is not firm and the construction of connecting the precast straight wall foundation and the foundation piles is complicated.

Republic of Korea Patent No. 10-1052731 (2011.08.01. Announcement Day) (hereinafter referred to as the prior art 2) discloses a method for constructing a wall structure using the strut for the structure, but the configuration is complicated and difficult construction There is this.

It is an object of the present invention to provide a concrete wall using a concrete formwork and a construction method thereof, which is robust and simple to construct.

In order to achieve the object of the present invention as described above, a plurality of piles embedded in a line in the ground on which the wall will be constructed; A plurality of front side concrete plates arranged to form the same surface on one side of the piles; A plurality of rear side concrete plates arranged to form the same surface on the other side of the piles at intervals from the front side concrete plates; A plurality of gap maintaining units for fixing the front and rear concrete plates so that the gap between the front concrete plates and the rear concrete plates is maintained; And filling concrete filled with concrete between the front concrete plates and the rear concrete plates. The gap maintaining unit includes fastening holes provided in the front and rear concrete plates, respectively, and the front and rear surfaces. A stud bolt inserted through the fastening hole of the side concrete plate and having male threads at both ends thereof, a fastening nut fastened to one end of the stud bolt to support the front concrete plate, and fastened to the other end of the stud bolt. The concrete wall is provided using a concrete formwork including a fastening nut for supporting the rear concrete plate.

The pile is circular, rectangular, or H-shaped in cross-sectional shape, and both ends of the front concrete plate are in contact with the pile, and both ends of the rear concrete plate are preferably in contact with the pile.

In addition, the step of putting the files in a line spaced on the ground to be constructed wall; Position the rear concrete plate with a plurality of fastening holes on the rear of the piles exposed over the ground, and the front side with a plurality of fastening holes on the front of the piles exposed over the ground at intervals from the rear concrete plate. Placing a unit formwork by placing a concrete plate; Fixing unit dies by fastening the gap between the fastening holes of the rear concrete plate and the fastening holes of the front concrete plate to maintain the gap between the front and rear concrete plates; Repeating the steps of installing the unit dies and fixing the unit dies by a distance set in a horizontal direction after the unit dies; And placing concrete between the rear concrete plates and the front concrete plates of the unit dies, wherein the gap maintaining unit is provided with male threads at both ends, and fastening holes and rear sides of the front concrete plates. A stud bolt penetrating through the fastening hole of the concrete plate, an inner and outer tightening nut on each side of the stud bolt to press both sides of the concrete plate on the front side, and an external thread on the other side of the stud bolt. Provided is a concrete wall construction method using a concrete formwork including fastening nuts in the rear, the inner and outer fastening fastened to each of the two sides of the rear concrete plate is fastened to.

The front concrete plate and the rear concrete plate are arranged in a one-to-one correspondence, and both ends of the front concrete plate are respectively supported by two adjacent piles, and both ends of the rear concrete plate are adjacent two piles. It is preferable to install so as to support each.

The width of the front concrete plate is made to correspond to the width of the three continuous piles, both ends of the front concrete plate is located on the pile located on both sides of the three continuous piles, the rear concrete The width of the plate is made to correspond to the width of three consecutive piles, and both ends of the rear concrete plate are located on piles located on both sides of the three continuous piles, respectively, and the front concrete plate and the rear concrete The plate may be installed in a zigzag form.

The outer tightening nut is formed on an inner circumferential surface of a hexagonal hexagonal head having a predetermined thickness, an insertion round bar portion extending in a round bar shape on one side of the hexagonal head portion, and a through hole passing through the hexagonal head portion and the insertion round bar portion. It includes a female threaded portion, the outer diameter of the insertion ring bar portion is preferably smaller than the inner diameter of the fastening hole.

It is preferable that a washer larger than the size of the hexagonal head is inserted between one side of the hexagonal head of the outer tightening nut and the concrete plate.

The front outer fastening nut and the rear outer fastening nut is preferably separated after curing of the concrete placed between the rear concrete plates and the front concrete plates of the unit dies.

The present invention installs piles in a line on the ground where walls are to be installed, and installs concrete plates in front of the concrete plates and rear concrete plates on both sides of the piles, and installs concrete in the space between the front concrete plates and the rear concrete plates. Since it is manufactured by pouring and curing, concrete wall is firmly installed on the ground and construction of concrete wall is simple.

In addition, the present invention is connected so that the front concrete plate and the rear concrete plate is maintained by the spacing unit, the spacing unit is inserted through the fastening holes of the front and rear concrete plate and the male thread is provided at both ends It includes a stud bolt, a fastening nut fastened to one male threaded portion of the stud bolt to support the front concrete plate, and a fastening nut fastened to the other male threaded portion of the stud bolt to support the rear concrete plate. Pre-stress is applied to the stud bolt by using fastening nut on the concrete plate on the rear side, so the concrete formwork can withstand the side pressure easily when placing concrete, and the pile and the concrete plate located inside are tightly contacted by bolt input to form and install the concrete Sufficient structural stability against overturning of structures including formwork during pouring It can be secured.

1 is a front view showing an embodiment of a concrete wall using a concrete formwork according to the present invention,
Figure 2 is a front view showing an embodiment of a concrete wall using a concrete formwork according to the present invention,
Figure 3 is a side cross-sectional view showing an embodiment of a concrete wall using a concrete formwork according to the present invention,
Figure 4 is a side view showing a gap maintaining unit constituting an embodiment of a concrete wall using a concrete formwork according to the present invention,
Figure 5 is a flow chart showing a first embodiment of a concrete wall construction method using concrete formwork according to the present invention,
6a to 6e is a front view and a plan view showing a first embodiment of a concrete wall construction method using a concrete formwork according to the present invention in the construction step,
Figure 7a, 7b is a plan view showing the main construction step in the second embodiment of the concrete wall construction method using the concrete formwork according to the present invention.

Hereinafter, with reference to the accompanying drawings, an embodiment of a concrete wall and a construction method using the concrete formwork according to the present invention will be described.

1 is a front view showing an embodiment of a concrete wall using a concrete formwork according to the present invention. Figure 2 is a front view showing an embodiment of a concrete wall using a concrete formwork according to the present invention. Figure 3 is a side cross-sectional view showing an embodiment of a concrete wall using a concrete formwork according to the present invention.

As shown in Figure 1, 2, 3, one embodiment of the concrete wall using the concrete formwork according to the present invention, a plurality of piles 10, front side concrete plate 20, rear side concrete plate ( 30), a plurality of gap holding units 40, the filling concrete (50).

The plurality of piles 10 are embedded at intervals in a line on the ground on which the walls are to be constructed. As an example of the pile 10, the pile 10 may have a circular cross-sectional shape, a square shape, or an H shape, and preferably has the most efficient H shape. The material of the pile can be steel or concrete. When the H-beams are arranged in a line, two parallel plates of each H-beam are arranged to form the same plane. That is, when one of the two parallel plates of H-beams is called the front plate 11 and the other plate is called the back plate 12, the H-beams arranged in line are the front plates 11 Located on the virtual same side and the backplanes 12 are located on the virtual same side.

The front concrete plates 20 are arranged to form the same plane on one side of the piles (10). As an example of the front side concrete plate 20, the front side concrete plate 20 is a rectangular plate having a uniform thickness and a plurality of through-hole fastening holes (H) is preferably provided. The front concrete plates 20 are arranged in a line by a distance set in a horizontal direction, and the sides of two front concrete plates 20 adjacent to each other are in contact with each other. The front side concrete plates 20 may be arranged in a row in a horizontal direction, and then the front side concrete plates 20 may be arranged in a plurality of rows on the front side concrete plates 20 arranged in a row.

The rear concrete plates 30 are arranged on the other side of the piles 10 at intervals from the front concrete plates 20. The rear concrete plates 30 are arranged in a line to form the same plane. The size and shape of the rear concrete plate 30 is preferably the same as the size and shape of the front concrete plate 20. The rear concrete plates 30 are arranged in a line by a distance set in the horizontal direction, and the sides of the two rear concrete plates 30 adjacent to each other are in contact with each other. The rear concrete plates 30 are arranged in a horizontal direction like the front concrete plates 20 and then the rear concrete plates 30 are arranged on the rear concrete plates 30 arranged in a row. It may be arranged in rows.

The gap maintaining units 40 fix the front and rear concrete plates 20 and 30 so that the gap between the front concrete plates 20 and the rear concrete plates 30 is maintained. As an example of the spacing holding unit 40, as shown in Figure 4, the spacing holding unit 40 is a fastening hole (H) provided in each of the front and rear concrete plates 20, 30, and before, A stud bolt 41 is inserted into the fastening hole H of the rear concrete plates 20 and 30 and has male threads at both ends thereof, and is fastened to one end of the stud bolt 41 so that the front concrete plate ( And a tightening nut 42 supporting the back side concrete plate 30 by being fastened to the other end of the stud bolt 41. The inner diameter of the fastening hole H is larger than the outer diameter of the male screw of the stud bolt 41. The washer 43 is preferably provided between the tightening nut 42 and the concrete plate (front and rear side concrete plates), and the outer diameter of the washer 43 is larger than the inner diameter of the fastening hole H.

Filling concrete 50 is cured in a state in which the concrete is poured between the front concrete plate 20 and the rear concrete plate 30 is filled.

In another embodiment of the concrete wall using the concrete formwork according to the present invention, the concrete wall using the concrete formwork, the concrete foundation placed on the ground to be constructed, and the plurality of front sides arranged in line on the upper surface of the concrete foundation Front and rear concrete to maintain the gap between the concrete plates, a plurality of rear concrete plates arranged in line with the front concrete plates, and the front concrete plates and the rear concrete plates It includes a plurality of gap holding units for fixing the plates, and filled concrete filled with concrete between the front concrete plates and the rear concrete plates. The gap maintaining unit is provided with a fastening hole provided in the front and rear concrete plates, a stud bolt inserted through the fastening holes of the front and rear concrete plates, and having male threads at both ends thereof, and one male thread portion of the stud bolt. And a fastening nut fastened to support the front concrete plate, and a fastening nut fastened to the other male threaded portion of the stud bolt to support the rear concrete plate. Another embodiment of the present invention is to exclude the piles in one embodiment of the present invention and to pour the concrete foundation in the ground to be constructed wall and curing, and then to arrange the front and rear concrete plates at a distance from each other, respectively Spacing units connect the front and rear concrete plates. At this time, by installing the pile perpendicular to the concrete foundation placed on the ground can ensure the structural stability when installing the concrete formwork. The front and rear concrete plates are the same as the front and rear concrete plates, respectively. The configuration of the spacing unit is the same as that of the spacing unit of one embodiment.

Figure 5 is a flow chart showing a first embodiment of a concrete wall construction method using a concrete formwork according to the present invention.

As shown in Figure 5, the first embodiment of the concrete wall construction method using the concrete formwork according to the present invention, the step (S1) of putting the piles 10 in a line in the ground to be constructed first wall Proceed (see Figure 6a). As an example of the pile 10, the pile 10 may have a circular cross-sectional shape, a square shape, or an H shape, and preferably has the most efficient H shape. The material of the pile can be steel or concrete. When the H-beams are arranged in a line, two parallel plates of each H-beam are arranged to form the same plane. That is, when one of the two parallel plates of H-beams is called the front plate 11 and the other plate is called the back plate 12, the H-beams arranged in line are the front plates 11 Located on the same side of the virtual and the back plate 12 is located on the same side of the virtual.

After the piles 10 are driven into the ground, the rear concrete plate 30 having a plurality of fastening holes H is located at the rear of the piles 10 exposed on the ground, and the rear concrete plate 30 On the front of the pile 10 exposed over the ground at intervals, the step (S2) to install the unit form by placing the front concrete plate 20 with a plurality of fastening holes (H) is carried out (Fig. 6b) Reference). Before installing the unit formwork including the front side concrete plate 20 and the rear side concrete plate 30, it is preferable to form a horizontal surface by casting the discarded concrete 2 on the ground where the piles 10 are arranged. As an example of the front side concrete plate 20, the front side concrete plate 20 is a concrete square plate having a uniform thickness and is provided with a plurality of through holes H in the rectangular plate. The rear concrete plate 30 is preferably the same size and shape of the front concrete plate 20. For example, the front side concrete plate 20 and the rear side concrete plate 30 is arranged in a one-to-one correspondence. That is, both ends of the front concrete plate 20 are in contact with the front plate of the two piles 10 adjacent to each other, and both ends of the rear concrete plate 30 are the back plates of the two piles 10. (12) is installed so as to be in contact with each other.

After the unit formwork is installed, the fastening hole (H) of the rear concrete plate (30) and the fastening hole of the front concrete plate (20) to maintain the gap between the front concrete plate (20) and the rear concrete plate (30). Step (S3) of fastening the unit die by fastening with the interval maintaining unit 40 to (H) (see Fig. 6c). As an example of the gap maintaining unit 40, the gap maintaining unit 40 is provided with male threaded portions at both ends thereof, so that the fastening holes H of the front concrete plate 20 and the fastening holes H of the rear concrete plate 30 are provided. The inner and outer tightening nuts (42) and (44) which are respectively fastened to the stud bolt (41) penetrating through) and the male threaded portion of the stud bolt (41) to press both sides of the front concrete plate (20). , The inner and outer tightening nuts 42 and 44 fastened to the other male threaded portion of the stud bolt 41 to press both sides of the rear concrete plate 30, respectively. Washers 43 and 45 are further provided adjacent to the inner tightening nut 42 and the outer tightening nut 44, respectively. The outer tightening nut 44 has a hexagonal hexagonal head 3 having a predetermined thickness, an insertion round bar part 4 extending in a round bar shape on one side of the hexagonal head 3, and a hexagonal head part. (3) and the female threaded portion 5 formed on the inner circumferential surface of the through-hole penetrating the insertion ring portion 4. The outer diameter of the insertion ring bar 4 is smaller than the inner diameter of the fastening hole (H). The female threaded portion 5 is fastened to the male threaded portion of the stud bolt 1.

The space keeping unit 40 fastens the inner joint nuts 42 to both male threaded portions of the stud bolts 41 and inserts the ear washers 43, respectively. Insert into the fastening hole (H) of the plate 20 and insert the other male thread portion into the fastening hole (H) of the rear concrete plate (30). At this time, the inner tightening nuts 42 fastened to both male threaded portions of the stud bolts 41 are positioned between the front and rear concrete plates 20 and 30. Then, the front outer tightening nut 44 and the rear outer tightening nut 44 are respectively fastened to both male threaded portions of the stud bolt 41. It is preferable to insert a washer 45 larger than the size of the hexagonal head 3 between one side of the hexagonal head 3 of the outer tightening nut 44 and the concrete plate. The front and rear concrete plates 20 and 30 are fixed by the stud bolt 41 and the inner and outer tightening nuts 42 and 44 while maintaining a gap therebetween. Spacing maintenance unit 40 is installed on a plurality of front, rear side concrete plate (20) (30).

After fixing the unit dies with the space holding unit 40, the step of installing the unit dies by the distance set along the pile 10 in the horizontal direction following the unit dies and the step of fixing the unit dies (S4) Proceed (see Figure 6d). The front and rear side concrete plates 30 of one unit formwork and the front and rear side concrete plates 30 of the other unit formwork are in contact with each other.

After installing and fixing the unit formwork by a set distance, a step S5 of blocking both openings and placing concrete between the rear side concrete plates 30 and the front side concrete plates 20 of the unit forms is performed (FIG. 6E). Reference).

After the concrete poured between the rear concrete plates 30 and the front concrete plates 20 of the unit dies is cured, the front outer fastening nut and the rear outer fastening nut are separated, respectively, and the outer fastening nut is separated. The fastening holes will be filled with concrete.

The second embodiment of the concrete wall construction method using the concrete formwork according to the present invention is carried out in the same manner as the first embodiment, the step of installing the unit formwork is different from the first embodiment. In the second embodiment, the step of installing the unit form, first, both ends of the front-side concrete plate 20 is installed in each of the piles 10 located on both sides of the continuous three piles 10, respectively, the rear side Both ends of the concrete plate 30 are installed to be located in each of the piles 10 located on both sides of the three continuous piles (10). At this time, the front concrete plate 20 and the rear concrete plate 30 is installed in a zigzag form. The width of the front concrete plate 20 corresponds to the width of three consecutive piles 10 and is made of a concrete square plate having a plurality of perforated fastening holes (H) therein, and the rear concrete plate 30 ) It is also manufactured in the same size and shape as the front concrete plate (20). That is, as shown in FIG. 7A, three consecutive files 10 are sequentially arranged in the first, second, third, fourth, fifth, and sixth files 10A, 10B, 10C, 10D, and 10E ( 10F), both horizontal ends of the front concrete plate 20 are supported in contact with the front plate 11 of the first and third piles 10A and 10C, and both horizontal sides of the rear concrete plate 30 are supported. The ends are supported in contact with the back plate 12 of the second and fourth piles 10B and 10D, respectively. At this time, the front plate 11 of the second pile (10B) is to support the center portion of the front concrete plate 20, the rear plate 12 of the third pile (10C) of the rear concrete plate (30) Support the middle part. And the front concrete plate 20 and the rear concrete plate 30 is fixed while maintaining the spacing by a plurality of gap holding unit (40). As shown in FIG. 7B, when installing one unit die and the other unit die, horizontal ends of the front concrete plate 20 of the other unit die are arranged in the third and fifth piles 10C. The horizontal end portions of the rear concrete plate 30 of the back side of the other unit die, respectively supported by the front plate 11 of 10E, are connected to the rear plate 12 of the fourth and six piles 10D and 10F. Each is supported. The unit dies are installed along the piles 10 in a zigzag form by a distance set in such a manner. Between the rear plate 12 of the first pile 10 and the rear plate 12 of the second pile 10 is provided with a back side concrete plate 30 of 1/2 size.

The second embodiment of the concrete wall construction method using the concrete formwork according to the present invention is to install the unit formwork in a zigzag spacing maintaining units 40, the fastening holes (H) and the rear side of the concrete plate 20 front side When the fastening holes (H) of the concrete plate 30 is fastened and the front concrete plates 20 and the rear concrete plates 30 of the unit dies are integrated with the filling concrete, Continuity is maintained.

Hereinafter, the operation and effects of the concrete wall and the construction method using the concrete formwork according to the present invention will be described.

The present invention installs piles 10 in line on the ground or concrete foundation on which the wall is to be installed, and installs the front concrete plates 20 and the rear concrete plates 30 on both sides of the piles 10 and the front surface. Since the concrete is placed and cured in the space between the side concrete plate 20 and the rear side concrete plate 30, the construction of the concrete wall is simplified.

In addition, the present invention is connected so that the front concrete plate 20 and the rear concrete plate 30 is maintained by the gap maintaining unit 40, the gap maintaining unit 40 is the front, rear concrete plate ( The stud bolt 41 is inserted into the fastening hole H of the 20 and 30 and the male threaded portion is provided at both ends and the male threaded portion of the stud bolt 41 is connected to the front concrete plate 20. The fastening nut 42 to support and the fastening nut 42 which is fastened to the other male threaded part of the stud bolt 42 to support the back concrete board 30 are included. Since the 30 is tightly supported by the pile 10 by the bolt tightening force of the space maintaining unit 40, it is possible to secure structural stability when placing concrete, without using a lateral conduction reinforcement used in the prior art when placing concrete. Will be. In addition, the gap maintaining unit 40 supports the concrete plate against the filling concrete placing side pressure, thereby reducing the use of formwork reinforcement temporary materials used for RC site concrete placing, thereby significantly reducing the time and installation cost when installing concrete walls. .

10; File 20; Front concrete board
30; Rear concrete plate 40; Spacing Unit
50; Filled Concrete

Claims (9)

A plurality of piles embedded at a line in the ground on which the wall is to be constructed;
A plurality of front side concrete plates arranged to form the same surface on one side of the piles;
A plurality of rear side concrete plates arranged to form the same surface on the other side of the piles at intervals from the front side concrete plates;
A plurality of gap maintaining units for fixing the front and rear concrete plates so that the gap between the front concrete plates and the rear concrete plates is maintained;
And filling concrete filled with concrete between the front concrete plates and the rear concrete plates.
The front concrete plate and the rear concrete plate are arranged in a one-to-one correspondence, and both ends of the front concrete plate are supported in contact with two adjacent piles, and two ends of the rear concrete plate are adjacent to each other. Are supported in contact with the fields,
The gap maintaining unit includes a fastening hole provided in each of the front and rear concrete plates, a stud bolt inserted through the fastening holes of the front and rear concrete plates, and having male threads at both ends thereof, and one side of the stud bolt. A fastening nut fastened to a male threaded part and positioned inside the filling concrete to support the concrete plate on the front side, and fastened to the other male threaded part of the stud bolt to be located inside the filling concrete to support the concrete plate on the rear side. Concrete wall using concrete formwork including fastening nut. delete Placing files in line with the ground on which the wall is to be constructed;
A rear concrete plate having a plurality of fastening holes is disposed at a rear surface of the pile exposed to the ground of the piles, and a plurality of fastening holes are provided at the front of the pile exposed to the ground of the piles at a distance from the rear concrete plate. Installing unit formwork by positioning the front side concrete plate;
Fixing unit molds by fastening the gap between the fastening hole of the rear concrete plate and the fastening hole of the front concrete plate to maintain the gap between the front and rear concrete plates;
Repeating the steps of installing the unit dies and fixing the unit dies by a distance set in a horizontal direction after the unit dies;
And placing concrete between the rear concrete plates and the front concrete plates of the unit dies.
The width of the front concrete plate is made to correspond to the width of the three continuous piles, both ends of the front concrete plate is supported in contact with the piles located on both sides of the three continuous piles, respectively, The width of the concrete plate is made to correspond to the width of the three successive piles, and both ends of the rear concrete plate are supported in contact with the piles located on both sides of the three continuous piles, respectively, Side concrete plate is installed in a zigzag form,
The gap retaining unit is provided with male threaded portions at both ends thereof, and includes a stud bolt passing through the fastening hole of the front concrete plate and the fastening hole of the rear concrete plate, and one of the male threaded portions of the stud bolt, respectively. Inner and outer tightening nut in the front and pressurizing both sides of the plate, and the inner and outer tightening nuts in the rear, respectively fastened to the other male threaded portion of the stud bolt to press both sides of the concrete plate,
The outer tightening nut is formed on an inner circumferential surface of a hexagonal hexagonal head having a predetermined thickness, an insertion round bar portion extending in a round bar shape on one side of the hexagonal head portion, and a through hole passing through the hexagonal head portion and the insertion round bar portion. And a female threaded portion to be formed, wherein the outer diameter of the inserted round bar portion is smaller than the inner diameter of the fastening hole. delete delete delete The concrete formwork according to claim 3, wherein the front outer tightening nut and the rear outer tightening nut are separated after curing of the concrete poured between the rear concrete plates and the front concrete plates of the unit forms. Concrete wall construction method using delete delete

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