KR20070112356A - Earth truss panel for concrete wall and concrete mud wall construction method - Google Patents

Abstract

The present invention relates to an underground construction mudstone construction device for preventing the ground from collapsing when excavating the ground to install a building underground.

More specifically, a plurality of truss panels are stacked between a plurality of H pile supports fixed at regular intervals, and concrete is placed on the inner surface of the earth wall concrete, which has high strength strength to withstand earth pressure, simple structure, and easy construction of soil barrier. Truss panel for concrete and construction method of concrete barrier wall using the same

Left and right lip U-shaped plate 101 is coupled to each other by male and male, two truss-shaped lattice iron wire 104 is joined to the bottom along the longitudinal direction of the U-shaped plate 101, and the lattice The upper deformed reinforcing bar 102 which is horizontally bonded between the two lines of the lattice iron wire 104 of the upper end of the iron wire 104, and the two lines of the lattice iron wire 104 at a point 2/3 from the upper part of the lattice iron wire 104 to the lower part. The lower deformed reinforcement 103 is horizontally bonded between the upper and lower deformed reinforcing bars 102-1 and 103-1 at both ends of the U-shaped plate 101, and the transverse intermediate point of the bottom of the U-shaped plate end. Vertical end supporting reinforcing bars 105 vertically bonded to 101-5, and upper and lower deformed reinforcing bar ends 102-1 and 103-1 at both ends of the U-shaped plate 101 are U-shaped plates 101. Triangular end supporting reinforcing bars 106 supporting the perpendicular to the device,

Earthquake construction method using the truss panel 100 for earth wall concrete step of fixing the H pile support 107 for the earthquake in a line (S100); Excavating the earth and sand (201) at the point to install the earth wall (S101); Installing a wood earth plate 202 on the excavated portion (H-Pile back surface) of the soil sand 201 (S102); A step (S103) of combining the lip of the earth truss panel for truss concrete with the arm 101-2 and the number 101-1; Fastening the fixed coupling piece 109 to the portion where the truss panel 100 is installed to integrate the truss panel with the H-Pile (S104); Placing (filling) the hardened concrete 110 in the space between the truss panel 100 and the wood earth plate 202 (S105); the earth block is completed.

Therefore, the reinforcement step compared to the conventional earth wall concrete construction method (order); And exterior wall formwork installation step; And shoring step; Curing the concrete with; Step of dismantling formwork after concrete curing: As there is no material cleanup after dismantling, earth wall concrete construction method using earth truss panel for earth wall concrete is very quick and simple, economical and construction period can be greatly reduced.

Description

Truss panel for retaining wall concrete and execution method used by this}

The present invention is an earthquake technology for preventing soil from collapsing when excavating the ground to install a building below the ground surface.

The present invention relates to an earthwork construction device to prevent the ground from collapsing when installing a building structure in the basement, and in particular, the reinforcement and formwork installation work is made at the same time, and the truss panel for earth wall concrete does not need to install the support on the formwork And it relates to the construction method of concrete retaining wall using the same.

In general, the earth wall concrete structure is composed of a composite structure using a combination of concrete as a compression material and rebar as a tension material.

Currently, the most common method of constructing a reinforced concrete earth wall structure to prevent the soil from collapsing when excavating the ground to install the building below the ground surface, after installing the H pile support 107 as shown in FIG. In order to prevent the earthwork of the back section to be excavated while being excavated) into the workshop during installation of the earth wall concrete 207, the support back flange 108-1 between the H pile support 107 and the H pile support 107 As shown in FIG. 12, the wood earth plate 202 is installed, and between the H pile support 107 and the H pile support 107 as shown in FIG. 13, the main reinforcing bar 203 and the reinforcing bar 204 are installed. 107) After attaching the formwork 205 to the front flange 108-2 as shown in FIG. 14, the formwork 205 is supported by the shoring 206 as shown in FIG. 15, and then the concrete 110 in the inner space as shown in FIG. The concrete is cured 110 as shown in Figure 17 When the formwork 205 is removed, the earth wall concrete 207 is completed.

The formwork of the earth wall structure described above is generally constructed of plywood and lumber, etc. First, reinforcing bars in the section where the formwork is to be attached, the formwork is attached, and the braces are installed, then concrete is installed in the interior space. Supporting formwork and external shoring should have considerable support.

Therefore, since the formwork itself becomes a kind of construction work for a structure, it takes a lot of installation time, and it also takes considerable air to remove formwork after curing of concrete.

The formwork has a lot of difficulties in dismantling and separating, as well as the formability of the material having a weak durability, the number of times of reuse due to damage during the dismantling operation, and also has a problem of generating a large amount of waste material.

As described above, the conventional earth wall concrete construction method includes a reinforcement step; And exterior wall formwork installation step; It is difficult, difficult, takes a lot of construction period, and installation cost is high, because it is necessary to pour concrete after pouring concrete and dismantle the form after concrete curing.

Reinforcement step to solve the above problems; And exterior wall formwork installation step; And shoring step; And concrete curing step; And formwork dismantling after concrete pouring; It was urgent to develop a process that does not require a process.

The proposed method for solving the above problems proposes a method using no formwork, that is, a form used as a part of a structure of a reinforced concrete structure, which is used for forming an outer surface of concrete.

As described above, the truss panel for earth concrete wall and the earth construction using the same have the following effects.

Conventional reinforcement step; And exterior wall formwork installation step; And shoring step; And concrete curing step; And step of dismantling formwork after concrete curing: and because the cinder is completed without rearranging the dismantled formwork material,

Earth wall concrete blocks using truss panels are very fast and simple, economical, and can greatly reduce the construction period.

In order to achieve the object as described above, the present invention, the U-shaped plate in the above-described configuration, while acting as a structure and formwork at the same time to prevent corrosion of the exposed surface after a long time after the earth wall construction galvanized iron plate Or, a general steel plate painted with rust-preventive paint was used, and the width of the U-shaped plate was determined by the width of the U-shaped plate as the upper and lower intervals of the main reinforcement by structural calculation, and the upper and lower ribs when the U-shaped plate was laminated in multiple stages In order to prevent the cement water from flowing down to the earth wall during concrete pouring, the ribs are combined with female and male.The two truss-shaped lattice wires have a circular cross section and a smooth surface. The rebar is manufactured in a concave-convex shape having a constant size in the longitudinal direction, and the two lattice iron wires are top-released The reinforcing bar and the lower deformed bar are bonded to both sides to maintain a constant gap, and are manufactured in a truss-shaped structure and installed in the longitudinal direction on the inner surface of the U-shaped plate. The left and right lattice wires are bent at 45 degrees to the outside to keep them open, and the lattice wire supports are bent at 45 degrees to the outside of the point just before the support for the lattice wires to be horizontally bonded to the inner surface of the U-shaped plate. Horizontally bonded to the inner surface of the U-shaped plate, while the supporting portion of the two rows of lattice steel wires that are spread outwardly are horizontally in the U-shaped inner surface of the U-shaped plate to support the concrete pressure evenly when the concrete is placed between the U-shaped plate and the wooden earth plate. Concrete and soil to be joined to the center point of the part divided by 1/2 and also to the truss panel In order to transfer the load to the H pile, the upper and lower deformed bar ends are welded vertically to the transverse mid-point of the bottom of the U-plate end, and the upper and lower deformed bar ends are supported perpendicular to the U-plate end. It is characterized by reinforcement with triangular end supporting reinforcing bars.

Graphical representation of the present invention

1 is a three-dimensional view of the truss panel of the present invention,

2 is a plan view of the truss panel of the present invention,

3 is a side view of the truss panel of the present invention,

4 is a cross-sectional view of the truss panel of the present invention,

5 is a front view of the truss panel of the present invention,

Figure 6 is a detailed installation of the truss panel of the present invention,

7 to 10 is a flow chart of the construction method of the truss panel of the present invention,

11 to 17 is a flow chart of the construction method of the concrete earth wall currently being constructed at the construction site,

18 is a construction process chart (flow chart) using the truss panel of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

First, the truss panel 100 is a U-shaped plate 101, upper release reinforcement 102, lower release reinforcement 103, lattice wire 104, end vertical support reinforcement 105, end as shown in FIG. The triangular support reinforcement 106 is comprised.

In the above-described configuration, the U-shaped plate 101 has a lip of the U-shaped plate 101 in order to prevent the cement water from flowing out when the concrete is placed so that the upper and lower sides are mutually coupled when stacked in multiple stages as shown in FIG. 6. It is comprised so that it may become the arm 101-2 and the number 101-1.

The truss panel 100 serves as a formwork and a structure of the concrete earth wall 207 at the same time, in order to prevent corrosion of the exposed surface after a long time after the earth wall construction, the galvanized iron plate or the general surface painted with anti-rust paint on the outer surface Iron plate is used.

In addition, the two truss-shaped lattice iron wire 104 is composed of a circular iron wire having a circular cross section and a smooth surface in a concavo-convex shape having a predetermined size, and having a lower deformed steel bar 103 and a U-shaped plate bottom ( 101-3) bent the left and right lattice wire 104 to the outside (104-3) to maintain the reinforcement coating thickness 111, the 45 degrees, the lattice wire support portion 104-5 The support portion 104-5 was formed by bending at 45 degrees to the point 104-4 immediately before the lattice wire support portion 104-5 so as to be horizontally bonded to the U-shaped plate inner surface 101-3.

In the above configuration, the upper main reinforcing bar 102 and the lower main reinforcing bar 103 are configured with deformed reinforcing bars to improve concrete adhesion.

As shown in FIG. 4, the two-lattice lattice wire 104 is joined to both sides of the upper deformed reinforcing bar 102 and the lower deformed reinforcing bar 103 and installed in the longitudinal direction of the U-shaped plate 101 in a truss-shaped structure. And

In addition, the two-lattice lattice wire 104 has a supporting portion 104-5 of the U-shaped plate bottom plate 101-3 in order to evenly support the concrete pressure of the U-shaped plate bottom plate 101-3. And a structure joined to the central point 101-4 of the portion divided by 1/2 in the direction.

Transverse intermediate points 101 of the upper and lower deformed reinforcing bar ends 102-1 and 103-1 and the bottom of the U-shaped plate end to transfer the loads of the concrete 110 and the soil 201 to the H pile support 107. Welded vertically to the end support reinforcement 105, and the triangular end support reinforcement 106 so that the upper and lower deformed reinforcement ends 102-1 and 103-1 are supported perpendicular to the end of the U-shaped plate 101 Reinforcement by.

The junction 104-1, 104-2, 104-5 of the truss-shaped lattice iron wire 104 attached to the left and right of the upper deformed steel 102 and the lower deformed steel 103 is joined by spot welding.

On the other hand, the vertical end support reinforcement 105 and the triangular end support reinforcement 106 uses a smooth surface of the round iron wire or deformed reinforcing bar, and welding is performed by arc welding.

As described above, the truss panel 100 is manufactured in a structure in which both ends thereof are symmetrical.

The earth construction method using the truss panel 100 for earth wall concrete of the present invention is as shown in the process diagram of FIG.

Fixing the H pile support 107 in a row (S100); and excavating the earth and sand (201) at the point where the earth wall is to be installed (S101); and the excavated portion (H-) Pile back) step of installing the wood earth plate 202 (S102); and the step of coupling the ribs of the earth wall concrete truss panel 100 with the arm 101-2, the number 101-1 to multi-stage lamination (S103); and

Integrating the truss panel and the H-Pile by fastening the fixed coupling piece 109 to the part where the truss panel 100 is installed (S104); and the space between the truss panel 100 and the wood earth plate 202 is not hardened. The step of pouring (filling) the concrete 110 (S105); the earth wall concrete block is completed.

   1 is a perspective perspective view of the truss panel of the present invention

   2 is a plan view of the truss panel of the present invention

   Figure 3 is a side view of the truss panel of the present invention

   4 is a cross-sectional view of the truss panel of the present invention

   5 is a front view of the truss panel of the present invention

   Figure 6 is a truss panel installation detail of the present invention

   7 to 10 is a construction flowchart of the truss panel of the present invention

   7 is an earth excavation for installing the truss panel

   Figure 8 is a wooden earth plate installation diagram on the back of the soil (H-Pile)

   9 is a truss panel installation diagram for earth concrete wall of the present invention

   10 is a concrete pouring diagram between the truss panel and the wood earth plate of the present invention

   11 to 17 is a conventional concrete earth wall construction sequence diagram

   11 is an earth excavation for installing a wooden earth plate

   Figure 12 is a wooden earth plate installed on the back of the H-Pile

   13 is a conventional cast iron reinforcement and reinforced reinforcing bar for concrete wall

   14 is a conventional installation formwork for earth concrete wall pouring

   Figure 15 is a conventional form of prop mounting

   Fig. 16 is a conventional earth wall (for earthing) concrete pouring.

   17 is a conventional concrete earth wall (soil wall) installation complete view

   18 is a flow diagram of earth wall (soil wall) concrete placing process using the truss panel of the present invention

      ＊ Explanation of symbols on main parts of drawing

      100: truss panel 101: U-shaped plate

      102: upper deformed bar (upper cast bar) 103: lower deformed bar (lower cast bar)

      104: lattice steel wire 105: vertical end support steel

      106: triangular end support steel 107: H pile strut

      108: H pile flange 109: fixed coupling piece

      110: concrete 111: reinforced coating

      201: earth and sand 202: wood soil plate

      203: cast iron 204: reinforced steel

      205: plywood formwork 206: shoring

      207: Earthwall Concrete

Claims (3)

A U-shaped plate 101 provided with an upper arm lip 101-2 for fastening and fastening the plate 101 of the truss panel to each other and a lower portion 101-1 of the lower portion; Two truss-shaped lattice iron wires 104 joined at a lower portion of the U-shaped plate 101 along a longitudinal direction thereof; An upper deformed reinforcing bar 102 horizontally bonded between the two lattice iron wires 104 of the upper end of the lattice iron wire 104; A lower deformed steel bar 103 horizontally bonded between two lines of the lattice iron wires 104 at a point 2/3 from the upper part of the lattice iron wires 104 to the lower part thereof; The left and right lattice iron wire 104 is bent outward 45 degrees at the point 104-3 where the concrete between the lower deformed steel 103 and the U-shaped plate bottom 101-3 maintains the reinforced coating thickness 111, respectively. Formed (opened); 45 ° bent at the point 104-4 immediately before the lattice wire support part 104-5 so that the lattice wire support part 104-5 can be horizontally bonded to the U-shaped plate inner surface 101-3. Constructing 104-5; Vertical end supporting bars vertically joined to the upper and lower deformed reinforcing ends 102-1 and 103-1 at both ends of the U-shaped plate 101 and the transverse intermediate point 101-5 of the bottom of the U-shaped plate end ( 105); Triangular end supporting reinforcing bars 106 supporting the upper and lower deformed reinforcing bar ends 102-1 and 103-1 at both ends of the U-shaped plate 101 perpendicular to the U-shaped plate 101; The truss panel 100 for earth wall concrete, characterized in that formed by the device. In the truss panel 100 for earth wall concrete of claim 1, an upper arm lip 101-2 and a lower portion 101-1 for fastening the truss panel plate 101 to each other up and down are provided. U-shaped truss panel plate 101. Concrete earth wall of the conventional earthquake construction method, the step of excavating the earth and sand to install a wood earth plate on the back of the H-Pile; and installing a wood earth plate on the back of the H-Pile; and in the space between the H-Pile and H-Pile Reinforcing the reinforcing bars; and installing the formwork (form) on the front of the H-Pile; and installing the support for forming the formwork; and placing unfilled concrete in the space between the H-Pile backing plate and the outer wall formwork (filling) And curing the concrete; and demolding the outer wall formwork after the concrete is hardened; In order to clean the demoulded outer wall formwork and brace; In the earth wall concrete earthquake construction method is completed, Reinforcing bar in the space between H-Pile and H-Pile; and Installing the earthwork wall concrete formwork (form); And Installing an external wall formwork brace; and Curing concrete; and Demolding the exterior wall formwork after the concrete is hardened; and Rearranging the demolded exterior wall formwork and brace (material); except A step of stacking the lip of the earth wall concrete truss panel 100 by the arm 101-2 and the number 101-1 by multi-stacking (S103); and Using the truss panel 100 for earth wall concrete, characterized in that it comprises a; (S104) to fasten the fixed coupling piece 109 to the portion where the truss panel 100 is installed to integrate the truss panel and the H-Pile. Construction method of concrete retaining wall.

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