KR101647340B1 - Circular temporary earth retaining structure construction method using multiple block - Google Patents

Abstract

An objective of the present invention is to provide a circular earth-retaining structure construction method which can maximize space efficiency, increase work efficiency, and shorten construction time. According to an embodiment of the present invention, the circular earth-retaining structure construction method comprises: a step of performing excavation in a prescribed depth; a step of arranging a plurality of blocks on the outside of the excavated ground in a circular shape; a step of mounting an upper portion of an L-shaped bracket along the inner circumferential surface of the blocks arranged in a circular shape; a step of mounting a plurality of connection blocks in a longitudinal direction towards an excavated area from a lower portion of the L-shaped bracket, and connecting the connection blocks in a circumferential direction to form a circular block assembly; and a step of additionally performing excavation in a prescribed depth below the circular block assembly, and additionally forming a circular block assembly on an additionally excavated area.

Description

TECHNICAL FIELD [0001] The present invention relates to a circular earth retaining structure,

Embodiments of the present invention relate to a method of constructing a circular retention structure, more specifically, to a method of constructing a circular retention structure capable of maximizing space utilization and securing an effect of increasing work efficiency and shortening a construction period.

In general, the foundation of the structure is formed by forming H-file or sheet-file into the ground and then forming a wooden earth wall to make a temporary earthwork.

As a concrete example, according to a conventional earth retaining method, a plurality of H beams are first put through the ground. Then, a plurality of H beams were installed between them and a heavy equipment such as a fork-lift was used to carry out the ter- minating work.

However, according to such a conventional construction method, there is a problem that noise and vibration are inevitably generated mainly due to punching operation or striking operation. In addition, in the conventional retention construction, it is essential to install various members such as a wale for supporting the backing of the retention wall, a slope installed on the edge of the belt, and a brace for supporting the lateral resistance of each side. Because of this, many equipment and manpower are required for the construction of the retaining walls, and the area required for construction is increased, which is a cause of hindering the space utilization, which causes a decrease in work efficiency and an increase in construction cost.

Further, there is a fear that the retaining structure constructed according to the conventional retaining construction method may collapse on one side or collapse on the relatively weak side of the structure due to the earth pressure of the remaining sides.

A related prior art is Korean Patent Registration No. 10-1403350 (published on May 28, 2014), which discloses a retaining structure and its construction method.

An object of the present invention is to provide a method of constructing a circular retaining structure capable of maximizing space utilization, increasing efficiency of work, and shortening construction period.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and another problem (s) not mentioned here will be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention, there is provided a method for constructing a circular earth retaining structure, comprising the steps of: (a) (b) arranging a plurality of blocks in a circular pattern through the outer surface of the ground; (c) engaging an upper portion of the L-shaped bracket along the inner circumferential surface of the plurality of blocks arranged in a circle; (d) longitudinally connecting a plurality of connecting blocks in a direction from the lower portion of the L-shaped bracket toward the tearable region and connecting the plurality of connecting blocks in a circumferential direction to form a circular block assembly; And (e) further performing a trench at the set depth to a lower portion of the circular block assembly, and further forming the circular block assembly through the further touched region.

Preferably, the set depth at which the waveguide is implemented is preferably within a range of 0.5 m to 1.5 m. As a more preferred example, the depth at which the waveguide is implemented is preferably 1 m. According to the present invention, in the case of the method of constructing the circular retaining structure according to the embodiment of the present invention, instead of performing the treading operation at a desired depth, the treading operation is performed at a certain depth determined by 1 m, Next, you can add a turf to the reset depth and then reconnect the circular block assembly.

In the step (b), the block includes four plates connected in a rectangular shape, and a triangular insertion block is connected to a connection portion between the blocks, wherein the insertion block includes two inclined plates, And a connecting plate connecting the blocks to each other to support the side surfaces of the blocks when the blocks are connected and arranged in a circular shape.

In addition, in the step (b), the insertion block may be fastened to the block by at least two fastening bolts, and the fastening bolt may be fastened with a gap in the longitudinal direction at the center of the width of the slanted plate .

In the step (c), the L-shaped bracket includes a vertical plate protruding upward in a straight line and a horizontal plate extending horizontally from a lower end of the vertical plate, the vertical plate forming an inner peripheral surface of the block Plate and a plurality of fastening bolts.

In the step (d), the connection block may include two horizontal plates formed at upper and lower intervals; Two vertical plates connected to both ends of the horizontal plate so as to cross each other; And a rectangular frame formed by shielding a square opening portion formed inside the transverse plate and the vertical plate.

In addition, in the step (d), the plurality of connection blocks may be connected in a circumferential direction to form a circular block assembly, and the circular block assembly may have a cylindrical shape having a height corresponding to a setting depth ≪ / RTI > For example, if the trench depth is 1 m, the height of the circular block assembly, which is completed by assembling a plurality of connecting blocks in the circumferential direction, may be 1 m, but is not limited thereto.

In addition, in the step (d), an upper end of the connection block may be fastened with a horizontal plate of the L-type bracket and a plurality of fastening bolts.

Further, in the step (d), an angle spacer is coupled between each of the plurality of connection blocks forming the circular block assembly, and the angle spacer includes a triangle Or a fan-shaped cross-section.

In the step (d), the angle spacer and the pair of connection blocks may be fastened by a plurality of angle bolts such that the angle spacer is in contact with the side surfaces of the pair of connection blocks through both side surfaces.

In addition, in the step (d), the angle bolt may include an inclined body having a shape bent at a predetermined angle so as to simultaneously penetrate the pair of connection blocks closely disposed on both sides of the angle spacer and the angle spacer; A first nut body fixed to one end of the inclined body; And a second nut body coupled through the other end of the inclined body to fix the angle spacer and the pair of connection blocks.

According to the method of constructing a circular retention structure according to the present invention, it is possible to maximize space utilization during operation, and to obtain an advantageous effect of increasing work efficiency and shortening construction period.

For example, in the case of the circular retention structure according to the present invention, the use of additional members such as a wale installed on a conventional rectangular retention structure and a brace transverse to the longitudinal direction is eliminated, thereby increasing the efficiency of the work and shortening the construction period .

In addition, the circular block assembly installed on the excavated vertical surface provides a structure in which the compressive stress due to the total earth pressure acts not only by the bending ability of the member itself but also by the large and small outer and inner diameters . This has the advantage of providing a safe working space.

In addition, since the circular block assembly is constructed in the direction of the trench after the trenching is performed at the set depth, that is, in the longitudinal direction, the assembly of the circular block assembly is performed through the workforce And it is advantageous in that the construction cost is low and the construction period is shorter than other equipments that require a lot of equipments and manpower to handle steel materials.

Particularly, it is possible to construct a circular block assembly by hand, so there is no noise generated due to operational noise due to equipment operation, operation noise due to insertion operation, and thus noise pollution around the construction can be prevented.

As described above, according to the present invention, since the use of materials and equipment is remarkably reduced compared with existing construction methods, the construction cost can be effectively lowered, the working efficiency can be improved due to maximization of space utilization, It can be used effectively in urban construction, which is sensitive to noise and construction period.

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

FIG. 1 is a flowchart briefly showing a method of constructing a circular earth retaining structure according to an embodiment of the present invention.
FIG. 2 is a process diagram schematically showing a block circular placement step in an embodiment of the present invention.
3 is a process diagram briefly showing a bracket coupling step in an embodiment of the present invention.
FIG. 4 is a process diagram schematically showing a step of forming a circular block assembly in an embodiment of the present invention.
Fig. 5 is a view showing a partially assembled state of the circular block assembly shown in Fig. 4. Fig.
6 is an enlarged view of the area P shown in FIG.
7 is an enlarged view of the fastening shape of the angle bolt shown in Fig.
FIGS. 8 and 9 are flow charts schematically showing steps of performing additional terraces and forming additional blocks in an embodiment of the present invention.

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

It is to be understood that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to inform.

FIG. 1 is a flowchart briefly showing a method of constructing a circular earth retaining structure according to an embodiment of the present invention.

Referring to FIG. 1, a method of constructing a circular earth retaining structure according to an embodiment of the present invention includes a trenching step S100, a block rounding step S200, a bracket coupling step S300, a block assembly forming step S400, And a step of performing additional ter- minator and forming an additional block assembly (S500).

In step S100,

This step corresponds to the step of performing the terahertz at the set depth as the terahertz step.

Preferably, the setting depth at which the terahertz wave is applied is preferably set within a range of 0.5 m to 1.5 m.

As a specific example, the terahertz wave can be conducted at a depth of about 1 m.

That is, unlike the conventional earth retaining structure, the depth required for the terra corrugation operation is not limited to one time, but the terrain can be implemented only by the depth corresponding to the height at which the circular block assembly 300 (see FIG.

Therefore, if a trench is formed at a depth of about 1 m in this step, a circular block assembly can be installed at a predetermined depth, and then a trench may be formed at a depth corresponding to the depth, followed by installing a circular block assembly. That is, the tearing operation and the circular block assembly installation work can be performed alternately.

Referring to FIG. 2, a hole H is formed below the ground at a set height (for example, 1 m) to confirm an exemplary shape of the turfed area A1.

Block circular placement step S200

This step corresponds to the step of arranging a plurality of blocks in a circular shape through the outer ground cut off in the previous step as a block circular placement step.

Referring to FIG. 2, a plurality of blocks 110 are connected along the outer edge of the outer edge of the area A1, which is formed in the previous step, to confirm the specific shape of the circular structure 100.

Referring to FIG. 6, the block 110 may include four plates connected in a rectangular shape, and a triangular insertion block 120 may be connected to a connection portion between the blocks 110.

Here, when the square block 110 is arranged in a circular shape as shown in FIG. 2, the insertion block 120 may fill the spaced space between the blocks to guide the placement position of the plurality of blocks 110, And the blocks 110 of FIG.

The insertion block 120 may include two inclined plates 121 and a connecting plate 123 connecting the inclined plates 121 as shown in FIG. At this time, since the two inclined plates 121 are connected to be widened by a predetermined center angle (a), the insertion block 120 may have a planar shape such as an equilateral triangle.

This insertion block 120 supports the sides of each of the blocks 110 when the blocks 110 are connected and arranged in a circle.

The insertion block 120 may be fastened by a plurality of blocks 110 and at least two fastening bolts 130.

It is preferable that the plurality of fastening bolts 130 are fastened in a straight shape at intervals in the longitudinal direction at the width center of the inclined plate 121, but the present invention is not limited thereto.

Bracket coupling step S300

This step is a bracket coupling step, which corresponds to the step of joining the upper portion of the L-shaped bracket along the inner circumferential surface of a plurality of blocks arranged in a circle.

Referring to FIG. 3, as a process of this step, it can be seen that a plurality of L-shaped brackets 210 are joined together along the inner circumferential surface of a plurality of blocks 110 arranged in a circular shape in a previous step. Accordingly, the plurality of L-shaped brackets 210 can form the bracket placing structure 200 disposed along the circumferential direction of the trencher H.

As a specific example, the L-shaped bracket 210 may include a vertical plate 211 and a horizontal plate 213 as shown in FIG. The vertical plate 211 is vertically protruded upward and may be fastened by a plurality of fastening bolts 220 and a block 110 arranged in a circular shape in a previous step.

Meanwhile, the horizontal plate 213 may extend horizontally from the lower end of the vertical plate 211.

In the circular block assembly forming step S400,

This step corresponds to a round block assembly forming step.

Referring to FIG. 4, a plurality of connection blocks 310 are longitudinally fastened to the tearable region A1 (see FIG. 2) from the lower portion of the L-shaped bracket 210 installed in the previous step. At the same time, a plurality of connecting blocks 310 are circumferentially connected, thereby forming a circular, more specifically, a band-shaped block assembly 300.

After the assembly of this circular block assembly 300 is completed, a further set depth of trenching may be performed to provide a further trenched area A2.

FIG. 5 is a view showing a partially assembled state of the circular block assembly shown in FIG. 4, and FIG. 6 is an enlarged view of the P region shown in FIG.

5 and 6, the connection block 310 includes two horizontal plates 311 (see FIG. 6) formed at upper and lower intervals and two vertical plates 313 , See FIG. 6). And a rectangular frame 315 (see FIG. 6) formed by shielding a rectangular open portion formed inside the vertical plate 313 (see FIG. 6) and the horizontal plate 311 (see FIG. 6).

The plurality of connection blocks 310 (see FIG. 6) thus constructed are assembled in the circumferential direction one by one in the circumferential direction, so that a circular block assembly 300 (see FIG. 4) having a strip shape as a whole can be formed .

The circular block assembly 300 (see FIG. 4) is preferably formed of a cylindrical (or band) structure having a height corresponding to the set depth of the touched region performed in the previous step, but is not limited thereto .

6) of the L-type bracket 210 (see FIG. 6) and a plurality of fastening bolts 230 (see FIG. 6) .

The plurality of fastening bolts 230 (see FIG. 6) can be fastened in the longitudinal direction at the center of the width of the horizontal plate 213 (see FIG. 6) of the L-shaped bracket 210 And can be pierced with an interval.

Meanwhile, in this step, an angle spacer 320 (see FIG. 6) may be coupled between each of the plurality of connection blocks 310 (see FIG. 6) forming the circular block assembly 300 (see FIG. 4).

The angle spacer 320 (see FIG. 6) is preferably, but not limited to, a triangular or fan-shaped cross section that can fill the gap between the plurality of connection blocks 310 (see FIG. 6).

6) and the pair of connection blocks 310 (see FIG. 6) are formed to be in close contact with the side surfaces of the pair of connection blocks 310 (see FIG. 6) through both sides of the angle spacer 320 , See Fig. 6) can be firmly fastened by a plurality of angle bolts 330 (see Fig. 6).

As shown in FIG. 7, the angle bolt 330 (see FIG. 6) includes an inclined body 331, a first nut body 333, a second nut body 335, and an elongated body 337 .

The inclined body 331 has a set angle b such that a pair of connecting blocks closely disposed on both sides of the angle spacer 320 and the angle spacer 320 and a vertical plate 313 of the connecting block are simultaneously penetrated and connected ). According to this structure, the angle spacer 320 and the pair of vertical plates 313 can be closely contacted with each other, and the stability of the structure can be improved.

The first nut body 333 may be fixed to one end of the inclined body 331 and the second nut body 335 may be coupled to the angle spacer 320 through the other end of the inclined body 331, It is possible to fix the connecting block of the first embodiment.

In this way, the circular block assembly 300 (see FIG. 4) formed through this step becomes a perfect circle, and the load of each connecting block 310 itself decreases due to the earth pressure received from the outside of the circle, The dispersion effect is improved and a more stable structure can be secured.

Particularly, when the connection block 310 and the angle spacer 320 are tightly connected to each other to form a complete circle 300, a kind of water wall is formed. The water wall can also be used as a provisional water film for the construction process. In the region where the soil depression is expected due to the leakage, it is advantageous to apply the exponent in advance and to secure the required water repellency at the construction site.

In the step of adding additional teracas and forming a block assembly (S500)

This step is an additional step of performing terahertz and an additional step of forming a block assembly.

Referring to FIG. 8, a turbulator may be additionally provided to the lower portion of the circular block assembly 300 installed and assembled in the previous step, and a circular block assembly 300 may be additionally formed .

That is, the circular block assembly 300 shown in FIG. 8 is repeatedly connected to the ground downward four times. Then, a fifth tapped waveguide is additionally performed to secure a terahertz region such as A5. Although not shown separately, a fifth circular block assembly 300 may be assembled through the trench region secured as in A5.

As described above, a tread pattern is added at a predetermined depth (for example, 1 m), and the assembling work for further forming the circular block assembly 300 using a plurality of connection blocks in the tear-off region is performed manually And these operations can be repeatedly performed as necessary. As a result, the installation of the circular retaining structure as shown in Fig. 9 can be completed.

Existing cladding method using H-file or sheet-file, which had been performed in the past, required an additional process for avoiding obstacles when exposed to the ground obstruction during the terrasing operation.

However, according to the method of constructing the retaining structure according to the embodiment of the present invention, the connecting block 310 (see FIG. 6) to be installed at a position where the obstacle is exposed, the rectangular frame 315 For example, the block 110 of FIG. 2, so that there is an advantageous technical effect that it is easy to avoid the obstacle without the deformation of the circular structure.

As described above, according to the structure and operation of the present invention, it is possible to maximize the space utilization in the operation, and to have an advantageous technological effect of securing the efficiency of the work and shortening the construction period.

For example, in the case of the circular retention structure according to the present invention, the use of additional members such as a wale installed on a conventional rectangular retention structure and a brace transverse to the longitudinal direction is eliminated, thereby increasing the efficiency of the work and shortening the construction period .

In addition, the circular block assembly installed on the excavated vertical surface provides a structure in which the compressive stress due to the total earth pressure acts not only by the bending ability of the member itself but also by the large and small outer and inner diameters . This has the advantage of providing a safe working space.

In addition, since the circular block assembly is constructed in the direction of the trench after the trenching is performed at the set depth, that is, in the longitudinal direction, the assembly of the circular block assembly is performed through the workforce And it is advantageous in that the construction cost is low and the construction period is shorter than other equipments that require a lot of equipments and manpower to handle steel materials.

Particularly, it is possible to construct a circular block assembly by hand, so there is no noise generated due to operational noise due to equipment operation, operation noise due to insertion operation, and thus, it is possible to prevent noise pollution around the construction.

As described above, according to the present invention, since the use of materials and equipment is remarkably reduced compared with existing construction methods, the construction cost can be effectively lowered, the working efficiency can be improved due to maximization of space utilization, It can be used effectively in urban construction, which is sensitive to noise and construction period.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the invention is not limited to the disclosed exemplary embodiments. It is obvious that a transformation can be made. Although the embodiments of the present invention have been described in detail above, the effects of the present invention are not explicitly described and described, but it is needless to say that the effects that can be predicted by the configurations should also be recognized.

S100:
S200: block circular placement step
S300: Bracket coupling step
S400: Block assembly formation step
S500: Additional construction of the digging machine and additional forming steps of the block assembly
100: block circular arrangement structure
110: block
120: Insertion block
121: Inclined plate
123: connecting plate
130: fastening bolt
200: Bracket arrangement structure
210: Bracket
211: Vertical plate
213: Horizontal plate
220 and 230: fastening bolts
300: circular block assembly
310: connection block
311: Horizontal plate
313: Vertical plate
315: Square frame
320: Angle spacer
330: Angle bolt
331: inclined body
333: first nut body
335: second nut body
337: Extension body

Claims (10)

(a) performing a terahertz to a set depth;
(b) arranging a plurality of blocks in a circular pattern through the outer surface of the ground;
(c) engaging an upper portion of the L-shaped bracket along the inner circumferential surface of the plurality of blocks arranged in a circle;
(d) longitudinally connecting a plurality of connecting blocks in a direction from the lower portion of the L-shaped bracket toward the tearable region and connecting the plurality of connecting blocks in a circumferential direction to form a circular block assembly; And
(e) further performing a trough at the set depth to a lower portion of the circular block assembly, and further forming the circular block assembly through the further tear-off region,
In the step (b), the block includes four plates connected in a rectangular shape,
The insertion block includes a pair of inclined plates and a connecting plate connecting the inclined plates. When the blocks are connected and are arranged in a circular shape, And the side walls are supported by the side walls.
delete The method according to claim 1,
In the step (b)
The insertion block includes:
And the fastening bolts are fastened to the block by at least two fastening bolts, and the fastening bolts are fastened at intervals in the longitudinal direction at the center of the width of the slanted plate.
The method of claim 3,
In the step (c)
The L-
A vertical plate protruding vertically upwardly and a horizontal plate horizontally extending from a lower end of the vertical plate,
Wherein the vertical plate is fastened with a plate forming an inner circumferential surface of the block and a plurality of fastening bolts.
5. The method of claim 4,
In the step (d)
The connection block includes:
Two lateral plates formed at an interval in the vertical direction;
Two vertical plates connected to both ends of the horizontal plate so as to cross each other; And
And a rectangular frame formed by shielding a square opening portion formed on the inner side of the horizontal plate and the vertical plate.
6. The method of claim 5,
In the step (d)
Wherein the plurality of connection blocks are connected in a circumferential direction to form a circular block assembly,
Wherein the circular block assembly comprises a cylindrical structure having a height corresponding to a set depth at which the terra cotta is implemented.
6. The method of claim 5,
In the step (d)
And the upper end of the connection block is fastened by a horizontal plate of the L-type bracket and a plurality of fastening bolts.
6. The method of claim 5,
In the step (d)
An angle spacer is coupled between each of the plurality of connection blocks forming the circular block assembly,
Wherein the angle spacer has a triangular or sectorial cross-section that can fill a gap between the plurality of connection blocks.
9. The method of claim 8,
In the step (d)
Wherein the angle spacer and the pair of connection blocks are fastened by a plurality of angle bolts such that the angle spacer is in close contact with a side surface of the pair of connection blocks through both side surfaces thereof.
10. The method of claim 9,
In the step (d)
Wherein the angle bolt includes an inclined body having a shape bent at a predetermined angle so as to simultaneously pass through the pair of connection blocks closely disposed on both sides of the angle spacer and the angle spacer;
A first nut body fixed to one end of the inclined body; And
And a second nut body fastened through the other end of the inclined body to fix the angle spacer and the pair of connection blocks.

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