KR20140005672A

KR20140005672A - Strut assembly

Info

Publication number: KR20140005672A
Application number: KR1020120073805A
Authority: KR
Inventors: 박건호
Original assignee: 박건호
Priority date: 2012-07-06
Filing date: 2012-07-06
Publication date: 2014-01-15

Abstract

The present invention relates to a strut assembly which is installed in the inner region of an earth retaining wall so as to support a compressive force applied by the earth retaining wall and to prevent the collapse of the earth retaining wall, wherein the strut assembly includes an underground structure passing part having an upper horizontal passing beam and a lower horizontal passing beam which are arranged in parallel with each other, and having a pair of vertical passing beams respectively connecting both ends of the upper horizontal passing beam and the lower horizontal passing beam. According to the present invention, the excess of member forces (such as bending moment and shear force) generated in a vertical pile is prevented, the excess of the compressive force applied to the strut assembly is prevented, and then the functions of the earth retaining wall and the strut assembly are stably maintained.

Description

Strut Assembly

The present invention relates to a brace support assembly, and more particularly, to support a compressive force applied from the earth wall by being installed on the earth wall having an earth wall installed to close the open area between the vertical pile and the vertical pile standing up on the bottom boundary of the excavation site. It relates to a support assembly for preventing the earth wall collapse.

Earth walls are installed to prevent the vertical surface of the excavation site from collapsing during the excavation.

The earth wall 210 has a plurality of vertical piles 211 erected at the bottom boundary of the excavation site, an earth wall 212 provided to close the open area between the vertical piles 211, and vertical to be parallel to the bottom surface of the excavation site. It has a strip 213 coupled to the pile 211 (see Fig. 3).

The vertical pile 211 may be provided with a bracket 214 for supporting the belt 213.

In order to prevent the earth wall 210 from collapsing, a method of installing a ground anchor is used.

The ground anchor is buried in the outer region of the earth wall 210 to apply a tensile force to the earth wall 210.

However, when the ground anchor is installed to prevent the earth wall 210 from collapsing, if there is a ground structure such as a building in an adjacent area of the earth wall 210, it is difficult to apply because it impairs the stability of the surrounding ground and invades private land.

Meanwhile, in order to prevent the earth wall 210 from collapsing, a method of installing a brace support assembly acting as a compression member in the inner region of the earth wall 210 has been devised and used.

9 is a perspective view of a conventional support assembly.

As shown in FIG. 9, the conventional support assembly includes a support support 121, a screw jack 123 coupled to one end of the support support 121, a screw jack 123, and a support support 121. It has a connecting plate 124 for connecting.

The support brace 121 may be implemented using H-Beam, a circular steel pipe having a symmetrical cross section, or a square tube having a square cross section.

The screw jack 123 is coupled to the support support 121 through the connecting plate 124.

A method of installing a conventional support assembly having such a configuration will be described below with reference to FIGS. 10 to 12. For convenience of explanation, the excavation site is excavated to expose all the underground structure 221, the ground support assembly 226 is installed to contact the ground, the underground structure 221 is supported by the hanger 222 Assume that

First, the conventional support assembly is installed. Here, when underground structures 221 having a large cross section (cross section larger than the vertical separation distance of the support brace), such as a joint hole, a water supply and sewer pipeline, and an electric pipeline, are already installed in the support assembly installation plan area, these underground structures are occupied. Avoiding the height section to fix the conventional support assembly to the strip 213.

Next, the screw jack 123 is turned to bring the conventional support assembly into close contact with the strip 213.

The conventional support assembly having the above-described configuration is disclosed in 2004 Utility Model Registration Application No. 0012606 (designation name: connection structure of earth wall and support beam).

However, according to the conventional support assembly, since the support assembly cannot be fixed to the earth wall 210 in the height section occupied by the underground structure, there is a problem in that the installation position of the support assembly is limited. As such, when the installation position of the support assembly is limited, the distance between the supporting points supporting the earth wall 210 is increased by the support assembly, which causes a large member force (bending moment, shear force, etc.) to the vertical pile constituting the vertical wall. As a result, a relatively large compressive force is applied to the bracing assembly, so that the functions of the earth wall and the bracing assembly cannot be stably maintained.

Accordingly, an object of the present invention is to suppress the occurrence of large member forces (bending moment, shear force, etc.) in the vertical pile of the earth wall, and to prevent excessive compression force applied to the support assembly, thereby to stabilize the functions of the earth wall and the support assembly. It is to provide a support assembly that can be maintained.

The above object, according to the present invention, in the support assembly for preventing the collapse of the earth wall is installed in the inner region of the earth wall so as to support the compressive force applied from the earth wall, the upper horizontal passing beam and the lower horizontal It is achieved by a brace assembly, characterized in that it comprises a passage structure and a passage structure having a pair of vertical passage beams connecting the upper horizontal passage beam and the lower horizontal passage beam, respectively.

Wherein the underground structure passing portion is formed in plural so that it can be applied even when the underground structures are arranged along the side of the excavation site in parallel with each other; It is preferable to further include a passage connection connecting beam connecting the underground structure passages.

And a pair of spacing adjustment bars installed one by one so as to be arranged side by side on the vertical passage beams from the outside of the vertical passage beams so as to adjust the separation distance between the support brace beams, that is, the spacing. It is preferable to further include a beam connecting portion for connecting the vertical passage beam.

Therefore, according to the present invention, by constructing the support assembly to have the underground structure passing portion for passing the underground structure to be able to fix the support assembly to the earth wall in the height section occupied by the underground structure, generated in the vertical pile of the earth wall Excessive member forces (bending moment, shear force, etc.) can be prevented, and the compressive force applied to the support assembly can be prevented from being excessive, thereby maintaining the functions of the earth wall and the support assembly in a stable manner.

1 is a perspective view of a brace support assembly according to an embodiment of the present invention;
2, 3, 4, 5, 6 and 7 is a view showing the installation method of the brace support assembly according to the embodiment of the present invention, respectively,
8 is a view showing another structure of the vertical passage beam, the gap adjustment brace bar and the beam connection brace in accordance with an embodiment of the present invention,
9 is a perspective view of a conventional support assembly,
10, 11 and 12 are diagrams illustrating a method of installing a conventional butt support assembly, respectively.

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

1 is a perspective view of a brace assembly according to an embodiment of the present invention.

The support assembly according to the embodiment of the present invention, as shown in Figure 1, a support brace for supporting a pair of underground structure passage portion 10, the underground structure passage portion 10 against the earth wall (210) (21), the passage connection connecting beam 22 for connecting the underground structure passage portion 10, the screw jack 23 coupled to the support support beam 21, the screw jack 23 and the support support beam 21 ) Has a connecting plate 24 for connecting.

Each underground structure passage portion 10 is a pair for connecting both ends of the upper horizontal passage beam 11 and the lower horizontal passage beam 12 and the upper horizontal passage beam 11 and the lower horizontal passage beam 12 arranged in parallel with each other. A vertical through beam 13, a pair of spacer support bars 15 are installed one by one so as to be arranged side by side on the vertical through beam 13 from the outside of the vertical through beam 13, and the vertical adjustment support bar 15 and the vertical It has a beam connecting portion 14 for connecting the passage beam (13).

Each spacing adjustment brace bar 15 is formed to have a shorter length than the vertical passage beam (13).

The beam connecting brace portion 14 is formed in a zigzag shape. Accordingly, the vertical passage beam 13, the gap adjustment brace bar 15 and the beam connection brace portion 14 cooperate to form a truss.

The support brace 21 is composed of a pair, and is coupled side by side to the interval adjustment brace bar 15 belonging to the underground structure passing portion 10 of the left side. Here, the separation distance between the support braces 21 may be set equal to the separation distance between the conventional brace support assembly 227 which will be described later, or may be added or subtracted from the separation distance as necessary.

And the support braces 21 can be implemented using H-beam, circular steel pipe of symmetrical cross section or square tube of square cross section, respectively.

Passing connection connecting beam 22 is composed of a pair, the gap between the adjustment structure bar (15) belonging to the underground structure passing portion 10 of the left side and the adjustment bar on the right and the underground structure passing portion of the right (10) It is coupled to each other side by side to the gap adjustment bar on the left side of the gap adjustment bar (15).

The screw jack 23 is coupled to the left end of each support brace 21 via the connecting plate 24.

Referring to Figures 2 to 7 a method for installing the support assembly according to an embodiment of the present invention having such a configuration as follows. For convenience of explanation, the excavation site is excavated to expose all the underground structure 221, the ground support assembly 226 is installed to contact the ground, the underground structure 221 is supported by the hanger 222 Assume that The hanger 222 may be coupled to the ground support assembly 226 through an H-type support 223, a support plate 224, and a support bolt 225 (see FIGS. 6 and 7).

First, a brace support assembly according to an embodiment of the present invention is installed so that the work of coupling the upper horizontal passing beam 11 belonging to each underground structure passing portion 10 to the vertical passing beam 13 is performed at the end. Here, the installation of the brace support assembly according to the embodiment of the present invention is made so that each underground structure passing portion 10 surrounds the underground structure 221. And the installation of the support assembly according to the embodiment of the present invention is made so that the upper horizontal passage beam 11 is parallel to the ground.

Next, the pair of screw jacks 23 are simultaneously turned to bring the brace support assembly according to the embodiment of the present invention into close contact with the strip 213.

Next, a conventional support assembly 227 is installed below the support assembly according to the embodiment of the present invention (see Fig. 2). The conventional support assembly 227 has the same structure as the support assembly described in the prior art.

Meanwhile, in the above-described embodiment, the spacing adjustment brace bar 15 is formed to have a shorter length section than the vertical passage beam 13, but the spacing adjustment brace bar is formed to have a longer length section than the vertical passage beam 13 to implement the present invention. can do.

In the above-described embodiment, the separation distance between the upper horizontal passage beam 11 and the lower horizontal passage beam 12 belonging to the underground structure passage part 10 on the left side is the upper horizontal passage beam belonging to the underground structure passage part 10 on the right side ( 11) and the same separation distance between the lower horizontal passage beam 12, but the separation distance between the upper horizontal passage beam 11 and the lower horizontal passage beam 12 belonging to the underground structure passage portion 10 on the left side and the right The present invention can be implemented by configuring the separation distance between the upper horizontal passage beam 11 and the lower horizontal passage beam 12 belonging to the underground structure passage portion 10 of the different.

In addition, in the above-described embodiment, the vertical passage beam 13, the interval adjustment brace bar 15, and the beam connection brace portion 14 are configured to form a truss in cooperation, as shown in Figure 8, such as H-beam By using a different form can be implemented in the vertical passage beam 13, the gap adjustment brace bar 15 and the beam connection brace 14.

According to the embodiment of the present invention as described above, by configuring the support assembly to have the underground structure passing portion 10 for passing the underground structure 221, the support structure in the earth wall occupied by the support structure at the height section occupied by the earth wall ( 210 can be fixed. Accordingly, the member force (bending moment, shear force, etc.) generated in the vertical pile 211 can be prevented from being excessive, and the compressive force applied to the brace support assembly can be prevented from being excessive. It can maintain the function of the brace assembly.

And by forming a plurality of underground structural passages 10 and connecting each of the underground structural passages 10 through the passage connecting braces 22, the underground structures 221 are arranged along the side of the excavation site side by side Even if it is, this invention can be applied.

In addition, by adding a pair of space adjustment brace bar 15 and the beam connecting brace 14 to the underground structure passing portion 10, it is possible to adjust the separation distance, that is, the space between the support brace 21.

10: underground structure passage part 11: upper horizontal passage report
12: lower horizontal passage portion 13: vertical passage beam
14: beam connection brace 15: spacing adjustment brace bar
21, 121: support brace 22: passage connection brace
23, 123: screw jack 24, 124: connecting plate
210: earth wall 211: vertical pile
212 earth wall 213 band
221: underground structure 222: hanger
226: ground support assembly 227: conventional support assembly

Claims

In the support assembly to be installed in the inner region of the earth wall wall to support the compressive force applied from the earth wall body to prevent the earth wall collapses,
And an underground structure passing portion having a pair of vertical passing beams connecting both ends of the upper horizontal passing beam and the lower horizontal passing beam and the upper horizontal passing beam and the lower horizontal passing beam.

The method of claim 1,
The underground structure passing portion is composed of a plurality;
Reinforced support assembly, characterized in that it further comprises a passage connecting connection beam for connecting the underground structure passing portion.

The method of claim 1,
The underground structure passing portion further comprises a pair of spaced adjustment bars installed one by one so as to be arranged side by side in the vertical passage beam from the outside of the vertical passage beam, further comprising a beam connection brace connecting the space adjustment brace bar and the vertical passage beam. Bracing assembly.