KR102357963B1 - Earthquake resistant slurry wall structure - Google Patents

Abstract

The present invention relates to an earthquake-proof underground slurry wall structure capable of enabling an integrated underground slurry wall structure to effectively resist earthquake soil pressure due to in-plane hardness by installing a shear reinforcement pillar in a vertical direction on the inner surface of a joint part of preceding and following panels of an underground slurry wall built with consecutively constructed preceding and following panels. The earthquake-proof underground slurry wall structure comprises: an underground slurry wall which is built as preceding and following panels individually having vertical and horizontal rebars placed therein are alternately and consecutively constructed, wherein a first accepting groove part is formed son the inner surface of an end part of the preceding and following panels, and a coupler exposed to the inner surface of the first accepting groove part is individually embedded in the end part of the preceding and following panels; and a shear reinforcement pillar provided in a vertical direction on the inner surface of the joint part of the preceding and following panels to have the whole part thereof or one outer part housed in the first accepting groove part of the inner surface of the preceding and following panels such that one end thereof can be fixed to the inner surface of the preceding and following panels through a fixing member coupled with the coupler, and connecting the preceding and following panels adjacent to each other in an in-plane direction which is a longitudinal direction of the underground slurry wall, thereby forming the underground slurry wall into one single integrated structure.

Description

Earthquake resistant slurry wall structure

The present invention provides an integrated underground continuous wall structure effectively seismic by in-plane rigidity by installing shear reinforcement columns in the vertical direction on the inner surface of the junction of the leading and trailing panels of the underground continuous wall, which is constructed by alternately successively constructing the preceding and succeeding panels. It is about an earthquake-resistant underground continuous wall structure that can resist earth pressure.

After the Gyeongju and Pohang earthquakes, interest in the seismic safety of buildings has increased, and institutionally, regulations on the seismic performance of buildings are being strengthened.

The seismic design of buildings according to the existing building structure standards deals specifically with the design of buildings exposed to the ground, but the seismic design provisions for underground structures such as underground parking lots, underground stations, and underground shopping malls are clearly defined as well as underground structures. it is not done

Accordingly, the earthquake-resistant design standards for buildings (KDS 41 17 00), which are revised standards for building structure standards, stipulate seismic design for underground structures to ensure the stability of underground structures against earthquake earth pressure.

On the other hand, the slurry wall is mainly used when the ground is weak and the earth pressure is large during underground structure construction, and when it cannot be resisted by the H-Pile retaining plate, CIP, SCW, or sheet pile method.

Specifically, after excavating a trench of a certain width in the ground, the trench is formed by excavating the ground while supporting the hollow wall with bentonite slurry.

At this time, a plurality of primary panels having a predetermined thickness and width are constructed to be spaced apart from each other, and a secondary panel is constructed by excavating between the preceding panels to construct an underground continuous wall.

Since these underground continuous walls have high wall rigidity, they are often used as permanent walls after excavation.

However, in order for these underground continuous walls to resist seismic earth pressure by the walls arranged in the direction perpendicular to the seismic earth pressure direction, the load must be supported by the wall's out-of-plane flexural rigidity.

In addition, the seismic earth pressure may be supported by the in-plane rigidity of the wall disposed in a direction parallel to the earthquake earth pressure direction. In this case, in the conventional underground continuous wall, the preceding and trailing panels are separately constructed, and horizontal reinforcement is also difficult to join, so each panel is structurally separated in the in-plane direction, so the overall in-plane rigidity of the continuous underground wall is not great. Accordingly, there is a limit in resisting earthquake earth pressure by the underground continuous wall itself.

KR 10-2137484 B1

In order to solve the above problems, the present invention is to provide an earthquake-resistant continuous underground wall structure capable of effectively resisting earthquake earth pressure by in-plane rigidity by integrating the preceding and trailing panels of the underground continuous wall.

The present invention according to a preferred embodiment is constructed by alternately continuous construction of a preceding panel and a succeeding panel having vertical and horizontal reinforcing bars therein, and a first receiving groove on the inner surface of the end side of the preceding panel and the following panel a continuous underground wall in which an additional is formed, and couplers exposed to the inner surface of the first receiving groove are embedded in the end sides of the preceding panel and the following panel, respectively; The preceding panel is provided in a vertical direction on the inner surface of the junction of the preceding panel and the succeeding panel, all or part of the outer side is accommodated in the first receiving groove on the inner surface of the preceding panel and the following panel, and one end is fastened to the coupler by a fixing member. Shear reinforcement pillars fixed to the inner surface of the and the succeeding panel to form the continuous underground wall into one integrated structure by connecting the adjacent preceding and succeeding panels in the in-plane direction, which is the longitudinal direction of the underground continuous wall; And Kaepbim provided to be continuous in the longitudinal direction of the underground continuous wall on the upper part of the underground continuous wall; In the inner center of the kaepbim, a shear reinforcement plate is provided in the longitudinal direction of the kaepbim at the junction of the preceding panel and the following panel, and on both sides of the shear reinforcement plate, the upper part to be embedded in the interior of the preceding panel and the following panel It provides an earthquake-resistant underground continuous wall structure, characterized in that it is provided with vertical anchoring reinforcing bars that protrude to the upper portions of the leading and trailing panels and are fixed inside the kaepbim.

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The present invention according to another preferred embodiment provides an earthquake-resistant underground continuous wall structure, characterized in that the shear reinforcement pillar is formed of an RC member, and the fixing member is embedded and fixed in the interior of the shear reinforcement pillar.

In the present invention according to another preferred embodiment, the shear reinforcement pillar is formed of a PC member, and the fixing member penetrates the shear reinforcement pillar to fix the shear reinforcement pillar to the preceding panel and the following panel. provide structure.

The present invention according to another preferred embodiment is characterized in that the embedded plate exposed to the inner surface is embedded in the end side of the preceding panel and the following panel, and the shear reinforcement column is formed of a steel plate and fixed to the embedded plate It provides an earthquake-resistant underground continuous wall structure.

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In the present invention according to another preferred embodiment, a coupler exposed to the side of the first accommodating groove is installed to be buried at the ends of the preceding panel and the following panel, respectively, and the shear reinforcement column is formed of an RC member, and one end is fastened to the coupler It provides an earthquake-resistant underground continuous wall structure, characterized in that the fixing member is embedded therein.

The present invention according to another preferred embodiment provides an earthquake-resistant underground continuous wall structure, characterized in that shear reinforcement beams provided to cross the preceding panel and the succeeding panel in the horizontal direction are fixedly installed on the inner surface of the underground continuous wall.

The present invention according to another preferred embodiment provides an earthquake-resistant underground continuous wall structure, characterized in that the shear reinforcement beam is extended to protrude below the slab at the end of the underground slab installed inside the underground continuous wall.

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According to the present invention, the continuous underground wall is formed into one integrated structure by installing shear reinforcement columns in the vertical direction on the inner surface at the junction of the preceding and succeeding panels of the underground continuous wall, which is constructed by alternately successively constructing the preceding and succeeding panels. It is possible to provide an earthquake-resistant underground continuous wall structure.

Accordingly, the continuous underground wall itself can exhibit sufficient seismic performance against earthquake earth pressure due to its in-plane rigidity.

In addition, the shear performance of the underground continuous wall can be improved by the cross-sectional strength of the shear reinforcement column itself.

1 is a perspective view showing the earthquake-resistant underground continuous wall structure of the present invention.
2 is a cross-sectional view showing a structure of an earthquake-resistant underground continuous wall in which a shear reinforcement column is an RC member.
3 is a cross-sectional view showing a structure of an earthquake-resistant underground continuous wall in which the shear reinforcement column is a PC member.
4 is a cross-sectional view showing a structure of an earthquake-resistant underground continuous wall in which the shear reinforcement column is a steel plate.
5 is a cross-sectional view showing an underground continuous wall in which a first receiving groove is formed.
6 is a cross-sectional view showing a structure of an earthquake-resistant underground continuous wall in which a coupler is embedded in the side of the first receiving groove.
7 is a perspective view showing a structure of an earthquake-resistant underground continuous wall provided with shear reinforcement.
8 is a cross-sectional view showing the earthquake-resistant underground continuous wall structure shown in FIG.
9 is a perspective view showing an embodiment in which a shear reinforcement beam is formed to extend to a slab;
Figure 10 is a side view showing an embodiment with a kaepbim.
11 is a cross-sectional view showing an embodiment provided with a kaepbim.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

1 is a perspective view showing the seismic continuous wall structure of the present invention, and FIG. 2 is a cross-sectional view showing the seismic continuous underground wall structure in which the shear reinforcement column is an RC member.

As shown in FIGS. 1 and 2, the earthquake-resistant underground continuous wall structure of the present invention alternately consists of a preceding panel 1a and a trailing panel 1b having vertical reinforcing bars 11 and horizontal reinforcing bars 12 inside, respectively. Continuously constructed underground wall (1); and a shear reinforcement column (2) provided in a vertical direction on the inner surface of the junction of the preceding panel (1a) and the succeeding panel (1b) and fixed to the inner surface of the preceding panel (1a) and the succeeding panel (1b); It is characterized in that it is composed of

An object of the present invention is to provide an earthquake-resistant underground continuous wall structure capable of effectively resisting earthquake earth pressure by in-plane rigidity by integrating the preceding panel 1a and the trailing panel 1b of the underground continuous wall (1).

The underground continuous wall (1) is constructed by continuously constructing a preceding panel (1a) and a succeeding panel (1b) alternately.

In the preceding panel 1a and the following panel 1b, vertical reinforcing bars 11 and horizontal reinforcing bars 12 are reinforced therein.

The preceding panel 1a can be constructed by inserting a reinforcing bar network composed of vertical reinforcing bars 11 and horizontal reinforcing bars 12 after excavating a preceding trench having a certain thickness and width in the ground 100 and pouring concrete.

A plurality of the preceding panels 1a are arranged to be spaced apart from each other in the longitudinal direction of the underground continuous wall 1 .

The trailing panel 1b is constructed by excavating a space between the pre-constructed preceding panels 1a to form a trailing trench, inserting a reinforcing bar network composed of vertical reinforcing bars 11 and horizontal reinforcing bars 12, and then pouring concrete It is possible.

The shear reinforcement column 2 is provided in a vertical direction on the inner surface of the junction of the preceding panel 1a and the succeeding panel 1b and is fixed to the inner surface of the preceding panel 1a and the following panel 1b.

After the construction of the underground continuous wall 1 is completed by alternately and continuously constructing the preceding panel 1a and the succeeding panel 1b, after excavating the interior, in the junction of the preceding panel 1a and the succeeding panel 1b Install the shear reinforcement column (2) in the vertical direction on the side.

The shear reinforcement column (2) is fixed to the front surface of the adjacent preceding panel (1a) and the following panel (1b) at the same time.

The shear reinforcement column 2 connects the adjacent preceding panel 1a and the succeeding panel 1b in the in-plane direction, which is the longitudinal direction of the underground continuous wall 1, so that the underground continuous wall 1 is integrated into one structure. to form with

Accordingly, the continuous underground wall 1 itself can exhibit sufficient seismic performance against earthquake earth pressure.

In addition, the shear performance of the underground continuous wall (1) is improved by the cross-sectional strength of the shear reinforcement column (2) itself.

A water stop material 13 may be installed inside the junction of the preceding panel 1a and the trailing panel 1b to prevent groundwater from penetrating into the room (FIG. 2).

As shown in FIG. 2 and the like, couplers 14 exposed to the inner surfaces are respectively embedded at the ends of the preceding panel 1a and the following panel 1b, and the shear reinforcement pillar 2 has one end of the coupler. It can be fixed to the inner surface of the preceding panel (1a) and the following panel (1b) by the fixing member (3) fastened to (14).

In order to fix the shear reinforcement column 2 to the preceding panel 1a and the succeeding panel 1b, a coupler 14 on the inner side (indoor side) of the end side of the preceding panel 1a and the trailing panel 1b can be installed buried.

One end of the coupler 14 may be screwed to one end of the bending reinforcing bar 15 embedded in the panels 1a and 1b to be fixed inside the panels 1a and 1b.

An end of the fixing member 3 may be screwed to the other end of the coupler 14 .

The fixing member 3 fixes the shear reinforcement column 2 to the preceding panel 1a and the following panel 1b.

The leading panel 1a and the trailing panel 1b connected to the shear reinforcement column 2 by the shear force of the fixing member 3 can move integrally with each other.

As shown in FIG. 2 , the shear reinforcement pillar 2 is formed of an RC member, and the fixing member 3 may be embedded and fixed in the shear reinforcement pillar 2 .

The shear reinforcement column (2) may be formed of an RC member cast on site.

To this end, after the excavation is completed, on the inner surface of the junction of the leading panel 1a and the trailing panel 1b, a plurality of vertical reinforcing bars 21 for the construction of the shear reinforcement column 2 and the band reinforcing bars surrounding the vertical reinforcing bars 21 ( 22) can be assigned.

And a fixing member (3) for fixing the shear reinforcement column (2) to the front and rear panels (1a, 1b) is installed. At this time, one end of the fixing member 3 may be screw-coupled to the coupler 14 , and the other end may be a stud reinforcing bar embedded in the shear reinforcement column 2 . A head portion 31 having an enlarged area may be formed at the end of the stud reinforcing bar.

Thereafter, the formwork is installed, and concrete is poured into the formwork to form the shear reinforcement column (2).

The shear reinforcement column (2) can be constructed by forward or reverse stroke according to the method of construction of the basement frame.

3 is a cross-sectional view showing a structure of an earthquake-resistant underground continuous wall in which the shear reinforcement column is a PC member.

As shown in Fig. 3, the shear reinforcement pillar 2 is formed of a PC member, and the fixing member 3 penetrates the shear reinforcement pillar 2 and attaches the shear reinforcement pillar 2 to the preceding panel 1a. And it can be fixed to the trailing panel (1b).

The shear reinforcement column (2) can be formed of a PC member pre-fabricated in a factory.

In this case, a through hole 23 may be formed in a position corresponding to the coupler 14 in the shear reinforcement column 2 which is a PC member.

One end of the fixing member 3 may be screwed to the coupler 14 , and the other end may be fixed to the inner surface of the shear reinforcement column 2 by passing through the through hole 23 .

The fixing member 3 may be composed of a long bolt penetrating the shear reinforcement column (2).

4 is a cross-sectional view showing a structure of an earthquake-resistant underground continuous wall in which the shear reinforcement column is a steel plate.

As shown in FIG. 4 , an embedded plate 16 exposed to the inner surface is embedded at the ends of the leading panel 1a and the trailing panel 1b, and the shear reinforcement pillar 2 is formed of a steel plate. It can be configured to be fixed to the embedded plate 16 .

The shear reinforcement column 2 may be formed of a steel plate, which is a steel material.

The shear reinforcement column (2) is attached to the joint of the leading and trailing panels (1a, 1b) and connects the front and trailing panels (1a, 1b) by shear force, unlike the general column supporting the axial force, so there is a risk of buckling due to the axial load. none.

Therefore, a relatively thin steel plate can be used as the shear reinforcement column (2).

To this end, the embedded plate 16 is pre-buried on the end side of the leading panel 1a and the trailing panel 1b, respectively, and the shear reinforcement column 2, which is a steel plate, is fixed to the embedded plate 16 by welding or the like. can

The embedded plate 16 can be pre-installed before concrete pouring when constructing the preceding panel 1a and the following panel 1b.

The embedded plate 16 may be provided with a shear connector 161 on the rear surface for fixing the front and rear panels (1a, 1b) in the concrete.

5 is a cross-sectional view showing a continuous underground wall in which a first accommodating groove portion is formed.

As shown in Figure 5, the first receiving groove portion 17 is formed on the inner side of the end side of the leading panel (1a) and the trailing panel (1b), the entire or outer part of the shear reinforcement column (2) It can be accommodated in the first receiving groove (17).

In order to reduce the eccentricity of the preceding and trailing panels 1a and 1b and the shear reinforcement column 2 to facilitate stress transfer and to improve the integrity with the preceding and trailing panels 1a and 1b, the preceding panel 1a and the trailing A first accommodating groove 17 may be formed at the joint of the panel 1b.

By inserting the shear reinforcement pillar 2 into the first receiving groove portion 17, the shear reinforcement pillar 2 and the front and rear panels 1a and 1b may be configured to engage with each other.

When the shear reinforcement pillar 2 is accommodated in the first accommodating groove portion 17, the thickness of the shear reinforcement pillar 2 protruding toward the interior can be minimized.

The shear reinforcement pillar 2 may be entirely accommodated in the first receiving groove portion 17 depending on the thickness of the front and rear panels 1a and 1b, the thickness of the shear reinforcement pillar 2, etc., and only the outer part of the first receiving groove portion (17) can also be inserted.

When the coupler 14 is embedded in the front and rear panels 1a and 1b, the coupler 14 may be provided on the inner surface of the first receiving groove 17 .

6 is a cross-sectional view showing a structure of an earthquake-resistant underground continuous wall in which a coupler is embedded in a side surface of the first receiving groove.

As shown in FIG. 6, at the ends of the preceding panel 1a and the trailing panel 1b, the coupler 14 exposed to the side of the first accommodating groove 17 is respectively embedded and installed, and the shear reinforcement pillar ( 2) is formed of an RC member, and the fixing member 3 having one end fastened to the coupler 14 may be embedded therein.

2 and the like, the coupler 14 can be installed on the inner surface of the first receiving groove (17).

In addition, in consideration of the depth of the first accommodating groove portion 17, the coupler 14 may be installed on the left and right sides of the first accommodating groove portion 17, which is the side end of the front and rear panels 1a and 1b, as shown in FIG. 6 .

In this case, since the fixing member 3 fixed to the inside of the shear reinforcement column 2 is disposed in the longitudinal direction of the front and rear panels 1a and 1b, it is advantageous in securing the fixing length of the fixing member 3 .

The coupler 14 may be coupled to the horizontal reinforcing bar 12 of the front and rear panels 1a and 1b.

7 is a perspective view showing a structure of an earthquake-resistant underground continuous wall provided with shear reinforcement beams, and FIG. 8 is a vertical cross-sectional view illustrating the structure of an earthquake-resistant underground continuous wall shown in FIG. 7 .

7 and 8, the shear reinforcement beam 4 provided to cross the preceding panel 1a and the trailing panel 1b in the horizontal direction is fixed to the inner surface of the underground continuous wall 1 can be installed.

By installing the shear reinforcement beam 4 that crosses the preceding and trailing panels 1a and 1b in the horizontal direction on the inner surface of the underground continuous wall 1, the leading and trailing panels 1a and 1b can be structurally further integrated. have.

The shear reinforcement beam 4 may be fixed to the inner surface of the front and rear panels 1a and 1b in the same manner as the shear reinforcement pillar 2 .

For example, when the shear reinforcement beam 4 is an RC member, the coupler 14 is pre-embedded in the interior of the front and trailing panels 1a and 1b, and the fixing member 3 which is a stud reinforcing bar is attached to the coupler 14 After bonding to the shear reinforcement, concrete is poured so that the fixing member 3 is fixed inside.

In the shear reinforcement beam 4, as in the shear reinforcement column 2, on the inner surface of the leading and trailing panels 1a and 1b, a second receiving groove 18 that crosses the front and trailing panels 1a and 1b in the horizontal direction. can form.

All or an outer part of the shear reinforcement beam 4 may be accommodated inside the second accommodating groove portion 18 .

The shear reinforcement beam 4 integrates the front and rear panels 1a and 1b to increase the shear rigidity in the in-plane direction of the underground continuous wall 1 . In addition, the shear reinforcement beam 4 forms a rigid frame in the form of a grid together with the shear reinforcement column 2, thereby exhibiting great resistance to lateral load caused by earthquake earth pressure.

Inside the shear reinforcement beam 4, it is possible to reinforce the main rod 41 disposed in the longitudinal direction of the shear reinforcement beam 4 and the stirrup 42 surrounding the main rod 41.

9 is a perspective view showing an embodiment in which a shear reinforcement beam is formed to extend to a slab.

As shown in FIG. 9, the shear reinforcement beam 4 may be formed to extend to the lower portion of the slab 5 at the end of the underground slab 5 installed inside the underground continuous wall 1 .

The shear reinforcement beam (4) is formed of an RC member and can be constructed integrally with the slab (5) when the underground slab (5) is constructed.

If the shear reinforcement beam 4 is integrally formed with the slab 5 serving as a diaphragm inside the underground continuous wall 1, the integrated rigidity of the front and rear panels 1a and 1b can be greatly increased. .

Figure 10 is a side view showing an embodiment provided with kaepbim, Figure 11 is a cross-sectional view showing an embodiment provided with kaepbim.

As shown in FIGS. 10 and 11, kaepbim 6 continuous in the longitudinal direction of the underground continuous wall 1 is provided on the upper part of the underground continuous wall 1, and at the inner center of the kaepbim 6 A shear reinforcement plate 62 is provided in the longitudinal direction of the kaepbim 6 at the junction of the preceding panel 1a and the trailing panel 1b, and on both sides of the shear reinforcement plate 62, the leading panel 1a and the trailing A vertical anchoring reinforcing bar 19 that is embedded in the inside of the panel 1b and protrudes to the upper portion of the preceding panel 1a and the following panel 1b and is fixed inside the kaepbim 6 may be provided.

By installing the kaepbim (6) on the upper part of the underground continuous wall (1), the adjacent front and rear panels (1a, 1b) can be integrated by the kaepbim (6).

At this time, in order to increase the shear rigidity of the kaepbim 6 at the junction of the preceding panel 1a and the trailing panel 1b, a shear reinforcement plate 62 may be installed inside the kaepbim 6 at the junction position.

In order to transfer the stress of the preceding panel 1a and the succeeding panel 1b to the shear reinforcement plate 62, vertical anchoring reinforcing bars 19 are reinforced inside and outside the leading panel 1a and the trailing panel 1b. , the upper portion of the vertical anchoring reinforcing bar 19 may be fixed on both sides of the shear reinforcement plate 62 .

A shear connector 621 may be attached to both sides of the shear reinforcement plate 62 so that the shear reinforcement plate 62 can be integrated in the kaepbim 6 .

In the kaepbim (6), the main bar (61) is arranged in the longitudinal direction of the kaepbim (6).

1: underground continuous wall 100: ground
1a: leading panel 1b: trailing panel
11: vertical reinforcing bar 12: horizontal reinforcing bar
13: water stop material 14: coupler
15: bending reinforcing bar 16: embedded plate
161: shear connector 17: first receiving groove
18: second receiving groove 19: vertical anchoring reinforcing bar
2: Shear reinforcement column 21: Vertical reinforcing bar
22: reinforcing bar 23: through hole
3: fixing member 31: head part
4: shear reinforcement 41: main bar
42: stirrup 5: slab
6: kaepbim 61: main geun
62: shear reinforcement plate 621: shear connector

Claims (10)

The preceding panel (1a) and the succeeding panel (1b) having vertical reinforcing bars (11) and horizontal reinforcing bars (12) inside, respectively, are constructed by alternately and successively constructed, the preceding panel (1a) and the following panel (1b) A first accommodating groove portion 17 is formed on the inner side surface of the end of underground continuous walls (1), each of which is buried and installed;
It is provided in a vertical direction on the inner surface of the junction of the preceding panel 1a and the succeeding panel 1b, so that all or part of the outer side is provided in the first receiving groove 17 of the inner surface of the preceding panel 1a and the following panel 1b. It is accommodated and fixed to the inner surface of the preceding panel 1a and the succeeding panel 1b by a fixing member 3 having one end fastened to the coupler 14, and the adjacent preceding panel 1a and the following panel 1b ) by connecting the continuous underground wall (1) in an in-plane direction that is the longitudinal direction of the continuous underground wall (1) to form a single integrated structure shear reinforcement column (2); and
Kaepbim (6) provided to be continuous in the longitudinal direction of the underground continuous wall (1) on the upper part of the underground continuous wall (1); is composed of
In the inner center of the kaepbim 6, a shear reinforcement plate 62 is provided in the longitudinal direction of the kaepbim 6 at the junction of the preceding panel 1a and the trailing panel 1b, and the shear reinforcement plate 62 The vertical anchoring reinforcing bars 19 that are embedded in the interior of the leading panel 1a and the trailing panel 1b on both sides, the upper part protruding to the upper part of the leading panel 1a and the trailing panel 1b, and fixed inside the kaepbim 6 ) earthquake-resistant underground continuous wall structure, characterized in that it is provided.
delete In claim 1,
The shear reinforcement pillar (2) is formed of an RC member, and the fixing member (3) is embedded and fixed in the interior of the shear reinforcement pillar (2).
In claim 1,
The shear reinforcement pillar 2 is formed of a PC member, and the fixing member 3 penetrates the shear reinforcement pillar 2 and fixes the shear reinforcement pillar 2 to the preceding panel 1a and the trailing panel 1b. Seismic underground continuous wall structure, characterized in that.
In claim 1,
An embedded plate 16 exposed to the inner surface is embedded in the end side of the preceding panel 1a and the trailing panel 1b, and the shear reinforcement column 2 is formed of a steel plate, and is mounted on the embedded plate 16. Seismic underground continuous wall structure, characterized in that it is fixed.
delete In claim 1,
At the ends of the preceding panel 1a and the trailing panel 1b, couplers 14 exposed to the side of the first receiving groove 17 are respectively embedded and installed, and the shear reinforcement pillar 2 is formed of an RC member. An earthquake-resistant underground continuous wall structure, characterized in that one end of the fixing member (3) fastened to the coupler (14) is embedded therein.
In claim 1,
Seismic continuous underground wall structure, characterized in that the shear reinforcement beam (4) provided to cross the preceding panel (1a) and the succeeding panel (1b) in the horizontal direction is fixedly installed on the inner surface of the underground continuous wall (1) .
In claim 8,
The shear reinforcement beam (4) is an earthquake-resistant underground continuous wall structure, characterized in that the extension is formed at the end of the underground slab (5) installed inside the underground continuous wall (1) so as to protrude to the lower part of the slab (5).
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