KR102197091B1 - Underground structure wall and underground structure and method construturing the same - Google Patents

Abstract

The present invention relates to an underground structure wall, an underground structure having the same, and a construction method thereof, wherein the present invention relates to a floor body constructed on an underground floor; It includes, but supporting each of the soil walls respectively located on both sides of the floor, and the underground structure walls connected to the floor body, wherein the floor body, a discarded concrete layer placed on the basement floor; A waterproof sheet provided on the upper surface of the discarded concrete layer; A foundation concrete layer placed on the upper surface of the waterproof sheet, wherein the underground structure wall comprises: an earthen barrier wall supporting the soil wall; A plurality of concrete panels arranged in a horizontal direction and a vertical direction to form an inner concrete wall so that the soil barrier contacts the wall; A support material for fixing the concrete panel to the retaining wall; An outer concrete wall formed to a thickness set in the inner concrete wall; It includes; a waterproof sheet provided between the inner concrete wall and the outer concrete wall. According to the present invention, while solidly supporting the soil wall, the construction and construction are simple, the soil wall is firmly supported, and while the underground structure is easily and easily installed using the soil barrier wall, the groundwater from the back of the underground structure is introduced into the structure. Can be effectively blocked.

Description

Underground structure wall and underground structure equipped with it, and its construction method {UNDERGROUND STRUCTURE WALL AND UNDERGROUND STRUCTURE AND METHOD CONSTRUTURING THE SAME}

The present invention relates to an underground structure wall, an underground structure having the same, and a construction method thereof.

When installing roads and structures, temporary facilities and concrete walls (retaining walls) are constructed on the excavation and embankment slopes to efficiently use the limited land.

Republic of Korea Patent Publication No. 10-2014-0078395 (2014.06.25. Publication date) (hereinafter referred to as prior art 1) discloses a gravity block-type mixed-wall retaining wall in which a concrete wall is constructed by stacking gravity blocks and a construction method thereof Has been. However, the prior art has a disadvantage in that construction is complicated because the retaining wall blocks are stacked in a vertical direction, the retaining wall blocks are fixed, and a backfill material is filled between the fixed retaining wall blocks and the earthen barrier structure.

On the other hand, Republic of Korea Patent Registration No. 10-1363878 (2014. 02. 17. Announcement date) (hereinafter referred to as prior art 2) discloses an underground road construction method using a temporary structure and a combined wall method of the main structure. However, prior art 2 can construct an underground road while allowing some vehicle passage to the ground, but there is a disadvantage that the construction becomes complicated.

Republic of Korea Patent Registration No. 10-1322089 (announced on October 28, 2013) (hereinafter referred to as prior art 3) proposes a wall construction method in which a strip is installed on the wall to support the strip and the PC wall with support beams. . However, prior art 3 has a complicated PC wall installation sequence, and the backfilling is not possible due to the installation of a strip on the back, resulting in a hollow space in the basement, which is a major problem for road safety accidents. It can be the cause. In addition, when installing the strip on the vertical pile, welding and bolting are performed, but there is no way to dismantle and recover the temporary facility steel because there is no space to access the back of the PC wall. Therefore, there is a drawback of lowering economic efficiency.

It is an object of the present invention to provide an underground structure wall having a simple structure and construction, and an underground structure having the same, and a construction method thereof while firmly supporting a soil wall.

Another object of the present invention is to provide an underground structure wall that firmly supports a soil wall and easily and easily installs an underground structure using a soil barrier, and blocks the inflow of groundwater, and an underground structure having the same, and a construction method thereof.

In order to achieve the object of the present invention as described above, the earth wall for supporting the soil wall; A plurality of concrete panels arranged in a horizontal direction and a vertical direction to form a concrete wall so that the soil barrier contacts the wall; An underground structure wall including; a support material for fixing the concrete panel to the earthing wall is provided.

It may further include an outer concrete wall formed to a thickness set in the concrete wall, and a waterproof sheet provided between the inner concrete wall and the outer concrete wall.

In addition, a floor body constructed on the basement floor; It includes, but supporting each of the soil walls respectively located on both sides of the floor, and the underground structure walls connected to the floor body, wherein the floor body, a discarded concrete layer placed on the basement floor; A waterproof sheet provided on the upper surface of the discarded concrete layer; A foundation concrete layer placed on the upper surface of the waterproof sheet, wherein the underground structure wall comprises: an earthen barrier wall supporting the soil wall; A plurality of concrete panels arranged in a horizontal direction and a vertical direction to form an inner concrete wall so that the soil barrier contacts the wall; A support material for fixing the concrete panel to the retaining wall; An outer concrete wall formed to a thickness set in the inner concrete wall; An underground structure comprising a; waterproof sheet provided between the inner concrete wall and the outer concrete wall is provided.

It is preferable that the support material includes an earth anchor or support for fixing the concrete panel.

It may further include a concrete slab connecting the upper portion of the underground structure walls respectively located on both sides of the floor.

In addition, the step of driving the first and second earthing walls in the ground at intervals from each other; Installing a strip and a support material on the first and second earthing walls, respectively, while first excavating the excavation area of the ground positioned between the first and second earthing walls; While secondly excavating the excavation area of the ground, the concrete panels are arranged horizontally and vertically on the first and second retaining walls, respectively, and fixed with a support material to construct the first inner concrete wall on the first retaining wall, and the second Constructing a second inner concrete wall on the retaining wall; Pouring discarded concrete into an underground floor positioned between the first and second inner concrete walls; Attaching a waterproof sheet to the first and second inner concrete walls and discarded concrete; Pouring foundation concrete on the waterproof sheet of the discarded concrete; Installing side molds on the first and second inner concrete walls, respectively, to pour the outer concrete walls following the waterproof sheet of the first and second inner concrete walls; There is provided a method for constructing an underground structure comprising the steps of constructing the first and second outer concrete walls by pouring concrete into side formwork respectively installed on the first and second inner concrete walls.

It may further include installing an upper formwork to connect the upper part of the first and second outer concrete walls with a concrete slab, and constructing a concrete slab by pouring concrete into the upper formwork.

Installing a top formwork to connect the upper portions of the first and second outer concrete walls with a concrete slab, and constructing a concrete slab by pouring concrete into the top formwork, wherein the top formwork includes a precast slab. It can also be included.

The side formwork comprises concrete panels for formwork arranged horizontally and vertically on the upper surface of the foundation concrete at a distance from the inner concrete wall, and a connection unit connecting the concrete panels for formwork to the inner concrete wall, respectively. It is desirable.

In the underground structure wall of the present invention, the concrete panels are arranged in the horizontal and vertical directions on the wall, and the arranged concrete panels are fixed to the wall with a support material, so that the concrete panels are firmly fixed to the wall and act on the wall. A structure that is safe against earth pressure and external force is formed, and the construction and construction of the underground structure is simple. In addition, when a waterproof sheet is included between the inner wall of the underground structure and the outer wall of the underground structure, groundwater on the back of the structure is prevented from leaking to the structure formed of the outer wall.

In addition, in the underground structure of the present invention, a waterproof sheet is provided inside the floor body, and the underground structure wall supporting the soil wall by being positioned on each side of the floor body is arranged in the horizontal direction and the vertical direction of the concrete panels on the soil barrier wall. Each of the concrete panels is fixed to the wall with a support material to form an inner concrete wall, and an outer concrete wall is formed on the inner concrete wall, and a waterproof sheet is provided between the inner concrete wall and the outer concrete wall. Not only is it firmly supported, but it also prevents the groundwater from flowing into the underground structure.

In addition, in the method of constructing an underground structure of the present invention, a floor body is constructed on the basement floor, and an underground structure wall is constructed to support the soil wall located on both sides, but a waterproof sheet is provided inside the underground structure wall. Construction of underground structures that do not inflow is simple. In addition, when a concrete slab is constructed to connect the upper part of the underground structure walls, it is possible to simply construct an underground structure in which groundwater does not flow into the interior, but also to construct a plurality of layers of the underground structure in the vertical direction. In addition, since it is possible to prevent the waterproof sheet from being damaged by the inner wall, it is not necessary to install a separate waterproof sheet protective wall.

1 is a side view showing an embodiment of an underground structure wall according to the present invention,
Figure 2 is a side view showing an embodiment of the underground structure according to the present invention,
Figure 3 is a side view showing another embodiment of the underground structure according to the present invention,
Figure 4 is a flow chart showing an embodiment of an underground structure construction method according to the present invention,
5A to 5J are side views showing an embodiment of an underground structure construction method according to the present invention in stages of construction.

Hereinafter, embodiments of an underground structure wall according to the present invention, an underground structure including the same, and a construction method thereof will be described with reference to the accompanying drawings.

1 is a side view showing an embodiment of an underground structure wall according to the present invention.

As shown in FIG. 1, an embodiment of the underground structure wall according to the present invention includes an earthing wall 10, concrete panels 20, and support members 30.

The earthen wall 10 supports the earth wall (W). As an example of the retaining wall 10, the retaining wall 10 includes H piles arranged at intervals from each other and earth plates arranged in a vertical direction between two adjacent H piles. As another example of the earthing wall 10, the earthing wall 10 includes concrete piles arranged in a line. As another example of the earthing wall 10, the earthing wall 10 includes sheet piles arranged in a line. A strip and a support material 30 are provided on the upper part of the earthing wall 10. It is preferable that the support member 30 includes an earth anchor.

The concrete panels 20 are arranged in a horizontal direction and a vertical direction so that the soil membrane contacts the wall 10 to form an inner concrete wall. A connection part to which the support member 30 is connected is provided inside the concrete panel 20. It is preferable that the concrete panel 20 is a square panel. The concrete panel 20 may be implemented in various forms, such as a hexagonal panel.

2 is a side view showing an embodiment of the underground structure according to the present invention.

As shown in Fig. 2, an embodiment of the underground structure according to the present invention includes a floor body 100 and an underground structure wall 200.

The floor body 100 is constructed on the basement floor. As an example of the floor body 100, the floor body 100 includes a discarded concrete layer 110 placed on the basement floor, a waterproof sheet S provided on the upper surface of the discarded concrete layer 110, and the waterproof sheet ( S) It includes a base concrete layer 120 poured on the upper surface.

The underground structure wall 200 supports each of the soil walls W located on both sides of the floor body 100, but is connected to the floor body 100. As an example of the underground structure wall 200, the underground structure wall 200 includes an earthing wall 10, concrete panels 20, support material 30, outer concrete wall 40, and waterproof sheet (S) do.

The earthen wall 10 supports the earth wall (W). As an example of the retaining wall 10, the retaining wall 10 includes H piles arranged at intervals from each other and earth plates arranged in a vertical direction between two adjacent H piles. As another example of the earthing wall 10, the earthing wall 10 includes concrete piles arranged in a line. As another example of the earthing wall 10, the earthing wall 10 includes sheet piles arranged in a row. A strip 11 and an earth anchor 30 are provided on the upper part of the earthing wall 10.

The concrete panels 20 are arranged in a horizontal direction and a vertical direction so that the earthen membrane contacts the wall 10 to form the inner concrete wall W1. A connection part 21 to which the support member 30 is connected is provided inside the concrete panel 20. It is preferable that the concrete panel 20 is a square panel. The concrete panel 20 may be implemented in various forms, such as a hexagonal panel.

The support material 30 fixes the concrete panel 20 to the retaining wall 10. It is preferable that the support member 30 includes an earth anchor. In addition, the support member 30 may include a brace.

The outer concrete wall 40 is formed to a thickness set in the inner concrete wall W1. The lower end of the outer concrete wall 40 is connected to the basic concrete layer 120 of the floor 100.

The waterproof sheet (S) is provided between the inner concrete wall (W1) and the outer concrete wall (40) to prevent the groundwater from the soil wall (W) side from flowing into the outer concrete wall (40).

Concrete slabs 300 may be further provided to connect the upper portions of the underground structure walls 200 located on both sides of the floor body 100, respectively. The concrete slab 300 has one end connected to the upper end of one underground structure wall 200 and the other end connected to the upper end of the other underground structure wall 200 in a flat plate shape.

In a state in which the concrete slab 300 is not provided, a U-shaped underground structure is formed.

In the state where the concrete slab 300 is provided, a box-type underground structure is formed.

As shown in FIG. 3, a plurality of box-type underground structures may be installed in a vertical direction.

Figure 4 is a flow chart showing an embodiment of the underground structure construction method according to the present invention. 5A to 5J illustrate an embodiment of an underground structure construction method according to the present invention in stages.

As shown in FIG. 4, in one embodiment of the method for constructing an underground structure according to the present invention, first, a step (S1) of driving the first and second earthing walls 10 to the ground at intervals from each other is performed (Fig. 5a). As an example of the retaining wall 10, the retaining wall 10 includes H piles arranged at intervals from each other and earth plates arranged in a vertical direction between two adjacent H piles. As another example of the earthing wall 10, the earthing wall 10 includes concrete piles arranged in a line. As another example of the earthing wall 10, the earthing wall 10 includes sheet piles arranged in a row.

After driving the first and second retaining walls 10 into the ground, the first and second retaining walls 10 are respectively excavated while excavating the excavation area of the ground between the first and second retaining walls 10, respectively. ) To install the step (S2) proceeds (see Fig. 5b). It is preferable that a plurality of strips 11 are installed at intervals in the vertical direction according to the excavation depth of the underground structure. Earth anchor (30) is installed on the earth wall (W), and the strip (11) is pressed with the earth anchor (30).

After installing the strip 11 on the upper part of the first and second retaining walls 10, while digging the excavation area of the ground second, the concrete panels 20 are placed in the horizontal and vertical directions on the first and second retaining walls 10, respectively. A step (S3) of installing the first inner concrete wall (W1) on the first retaining wall (10) by arranging and fixing it in the direction and installing the second inner concrete wall (W1) to the second retaining wall (10) proceeds (S3). (See Figs. 5c and 5d). It is preferable that the concrete panel 20 is a square panel. The concrete panel 20 may be implemented in various forms, such as a hexagonal panel. A connection part 21 to which the support member 30 is connected is provided inside the concrete panel 20. It is preferable that the support member 30 includes an earth anchor. The concrete panel 20 is connected by an earth anchor 30 installed on the earth wall W so that the earth wall 10 penetrates the earth wall 10 and is fixed to the earth wall 10 in a pressed state. The first and second inner concrete walls W1 are constructed to have a set height and length, respectively.

After the construction of the first and second inner concrete walls (W1), a step (S4) of pouring discarded concrete on the basement floor located between the first and second inner concrete walls (W1) is performed (see FIG. 5E). It is preferable that the discarded concrete is poured at a height where the lower ends of the first and second inner concrete walls W1 are not exposed.

After pouring the discarded concrete, a step (S5) of attaching the waterproof sheet (S) to the first and second inner concrete walls (W1) and the discarded concrete (see FIG. 5F) is performed.

After attaching the waterproof sheet (S) to the first and second inner concrete walls (W1) and the discarded concrete, a step (S6) of pouring the foundation concrete on the waterproof sheet (S) of the discarded concrete proceeds (see FIG. 5G). The foundation concrete is poured to have a set thickness on the upper surface of the waterproof sheet S attached to the discarded concrete.

In the cured state after pouring the foundation concrete, each side of the first and second inner concrete walls (W1) to pour the outer concrete walls (40) following the waterproof sheet (S) of the first and second inner concrete walls (W1). A step S7 of installing the formwork M proceeds (see Fig. 5H). As an example of the side formwork (M), the side formwork (M) is a concrete panel (1) for formwork arranged horizontally and vertically on the upper surface of the foundation concrete at a distance from the inner concrete wall (W1), and the formwork It is preferable to include a connection unit (2) for fixing the concrete panel (1) for formwork by connecting the concrete panels (1) for each to the inner concrete wall (W1). That is, the concrete panels for formwork (1) face the inner concrete wall (W1) and installed at a uniform distance from the inner concrete wall (W1). As an example of the connection unit 2, it may include a connection tie. In addition, as another example of the connection unit 2, it may include an anchor bolt and a nut. The connection unit 2 can be implemented in various forms.

Step of installing the first and second outer concrete walls 40 by pouring concrete into the side molds M respectively installed on the first and second inner concrete walls W1 after installing the side cover (M) (S8) Is in progress (see Fig. 5i). More specifically, between the waterproof sheet (S) and the side formwork (M) of the first inner concrete wall (W1) and between the waterproof sheet (S) and the side formwork (M) of the second inner concrete wall (W1) Concrete is poured. When the concrete poured into the side formwork (M) is cured, the outer concrete wall 40 is formed. In this state, a U-shaped underground structure is formed.

Meanwhile, the upper portions of the first and second outer concrete walls 40 may be connected to the concrete slab 300 (see FIG. 5J). At this time, an upper formwork is installed so that the upper part of the first and second outer concrete walls 40 can be connected to the concrete slab 300, and concrete is placed on the upper formwork to construct the concrete slab 300. Accordingly, a box-type underground structure having the foundation concrete, the first and second outer concrete walls 40 and the concrete slab 300 as inner surfaces is formed. As another example of the top formwork, the top formwork may comprise a precast slab.

In addition, when the first and second outer concrete walls 40 are installed on the top of the concrete slab 300 and the concrete slabs 300 are installed on the first and second outer concrete walls 40, a plurality of box-shaped Structures can be tunneled.

Hereinafter, the action and effect of the underground structure wall according to the present invention, the underground structure having the same, and the construction method thereof will be described.

The underground structure wall of the present invention arranges the concrete panels 20 in the horizontal and vertical directions on the earthing wall 10, and the arranged concrete panels 20 are fixed to the earthing wall 10 with the earth anchor 30, respectively. Therefore, the concrete panels 20 are not only firmly fixed to the earthing wall 10, but also firmly support the earth wall W, and construction and construction are simplified. In addition, when the underground structure wall includes the waterproof sheet (S), the groundwater flowing through the soil wall (W) is prevented from leaking to the concrete wall (W1) formed by the concrete panels (20).

In addition, the underground structure of the present invention is provided with a waterproof sheet (S) in the interior of the floor body 100, the underground structure wall 200 for supporting the earth wall (W) by being located on both sides of the floor body 100 Concrete panels 20 are arranged in the horizontal and vertical directions on the retaining wall 10, and the arranged concrete panels 20 are each fixed to the retaining wall 10 with an earth anchor 30, and the inner concrete wall (W1) And the outer concrete wall 40 is formed on the inner concrete wall W1, and a waterproof sheet S is provided between the inner concrete wall W1 and the outer concrete wall 40, so the underground structure wall 200 Not only does it firmly support the soil wall W, but also prevents the groundwater flowing through the soil wall W from flowing into the underground structure.

In addition, the underground structure construction method of the present invention is to construct the floor body 100 on the basement floor, and construct the underground structure wall 200 supporting the earth wall W located on both sides thereof, but inside the underground structure wall 200 Since it is constructed so that the waterproof sheet (S) is provided, construction of an underground structure in which groundwater from the soil wall (W) does not flow is simple. In addition, when the concrete slab 300 is constructed to connect the upper part of the underground structure walls 200, it is possible to simply construct an underground structure in which groundwater does not flow into the interior. It can also be used as the basement of a structure.

In addition, since the present invention does not need to backfill the back of the structure after the installation of the underground structure is completed, the amount of excavated soil is small so that the economical efficiency is excellent. You can do it.

10; Earthing wall 20; Concrete panel
30; Earth Anchor 40; External concrete wall
S; Waterproof sheet 100; Floor
110; Discarded concrete layer 120; Foundation concrete layer
200; Underground structure wall

Claims (8)

An earthen wall for supporting the soil wall;
A plurality of concrete panels arranged in a horizontal direction and a vertical direction to form a concrete wall so that the soil barrier contacts the wall;
A support material for fixing the concrete panel to the retaining wall;
An outer concrete wall formed to a thickness set in the concrete wall; And
Includes; a waterproof sheet provided between the concrete wall and the outer concrete wall,
The outer concrete wall maintains a gap by connecting concrete panels for formwork arranged in horizontal and vertical directions with a distance from the concrete wall in which the plurality of concrete panels are arranged, and the concrete panels for formwork, respectively, to the concrete wall An underground structure wall comprising the connecting units to be made, and concrete cured by pouring between the concrete wall and the concrete panels for formwork. delete A floor body constructed on the basement floor;
Including; but supporting each of the soil walls respectively located on both sides of the floor, the underground structure walls connected to the floor body,
The bottom body,
A discarded concrete layer placed on the basement floor;
A waterproof sheet provided on the upper surface of the discarded concrete layer;
Includes; a basic concrete layer poured on the upper surface of the waterproof sheet,
The underground structure wall,
A soil barrier wall supporting the soil wall;
A plurality of concrete panels arranged in a horizontal direction and a vertical direction to form an inner concrete wall so that the soil barrier contacts the wall;
A support material for fixing the concrete panel to the retaining wall;
An outer concrete wall formed to a thickness set in the inner concrete wall;
Includes; a waterproof sheet provided between the inner concrete wall and the outer concrete wall,
The outer concrete wall is spaced by connecting the concrete panels for formwork and the concrete panels for formwork arranged in a horizontal direction and a vertical direction at a distance from the inner concrete wall in which the plurality of concrete panels are arranged, and the concrete panels for formwork, respectively, to the inner concrete wall. An underground structure comprising connection units for maintaining the and cured concrete by being cast between the concrete wall and the concrete panels for formwork. The underground structure according to claim 3, further comprising a concrete slab connecting upper portions of the underground structural walls located on both sides of the floor. Driving the first and second earthing walls in the ground at intervals from each other;
Installing a strip and a support material on the first and second earthing walls, respectively, while first excavating the excavation area of the ground positioned between the first and second earthing walls;
While secondly excavating the excavation area of the ground, the concrete panels are arranged horizontally and vertically on the first and second retaining walls, respectively, and fixed with a support material to construct the first inner concrete wall on the first retaining wall, and the second Constructing a second inner concrete wall on the retaining wall;
Pouring discarded concrete on an underground floor positioned between the first and second inner concrete walls;
Attaching a waterproof sheet to the first and second inner concrete walls and discarded concrete;
Pouring foundation concrete on the waterproof sheet of the discarded concrete;
Installing side molds on the first and second inner concrete walls, respectively, to pour the outer concrete walls following the waterproof sheet of the first and second inner concrete walls;
Including; and constructing the first and second outer concrete walls by pouring concrete into the side formwork installed on the first and second inner concrete walls, respectively,
The side formwork is a connection for maintaining the distance by connecting the concrete panels for formwork arranged horizontally and vertically on the upper surface of the foundation concrete at a distance from the inner concrete wall, and the concrete panels for formwork to the inner concrete wall, respectively. Underground structure construction method including a unit. delete The method of claim 5, further comprising installing a top formwork to connect the upper portions of the first and second outer concrete walls with a concrete slab, and constructing a concrete slab by pouring concrete into the top formwork, wherein the top surface The formwork is a method of constructing an underground structure including a precast slab. delete

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