KR101591812B1 - Block-type reinforced earth retaining wall construction method and steel rod grid reinforcing material is installed - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a block-type reinforced earth retaining wall method in which a grid reinforcement and a steel bar are installed. More particularly, the present invention relates to a method of reinforcing a retaining wall using a steel rod and a grid reinforcement, And reinforced concrete retaining walls are firmly supported by the dynamic load due to the earthquake and vibration by the auxiliary block for supporting the steel rods.

Description

[0001] Block-type reinforced earth retaining wall construction method and steel rod rod reinforcing material is installed in which a grid reinforcing member and a steel bar are installed.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a block-type reinforced earth retaining wall method in which a grid reinforcement and a steel bar are installed. More particularly, the present invention relates to a method of reinforcing a retaining wall using a steel rod and a grid reinforcement, And a reinforced concrete retaining wall which is provided with a reinforcing rod and a reinforcing rod which are firmly supported by the dynamic load due to the earthquake and vibration by the auxiliary block for supporting the reinforcing rod.

In general, the retaining wall refers to a structure for preventing soil from falling by resisting the earth pressure, and is defined as a wall that suppresses material on one side of the wall to maintain the altitude difference. Surrounding slopes, roads, railway slopes, buildings, and cascading walls all represent potential loads on the retaining walls. The retaining walls are mainly divided into three types: gravity type, cantilever type, and reinforced earth retaining wall. "Gravity Retaining Wall" is a form of retaining wall that can withstand the load of the soil confined by the weight of the blocks itself. In case of gravity type retaining wall, each block is composed of concrete or stone lump, so the construction cost is higher. Gravity retention walls depend on the weight of the structure to withstand the earth pressure.

Excavating soil on the back of the retaining wall does not affect the structural strength of the retaining wall. The cantilevered retaining wall typically has a structure of sheet piles placed in the soil and obtains bearing capacity from the resistance against rotation of the sheet pile under the supported soil. The cantilever retaining wall has a horizontal base section buried under the backcourt and the backcounting soil has a stem section that extends vertically to the base to form a wall. The cantilever retaining wall depends on the weight of the backfill at the base to prevent tilting of the wall.

The retaining wall must be able to withstand the superstructure and the earth pressure sufficiently, the durability is good, the material can be easily secured and the construction should be easy, and the widely used shaft is generally equipped with these requirements, The reinforced concrete retaining wall has excellent stability and durability.

In the case of the above-mentioned concrete retaining wall, although it is the most commonly used structure at present, there is a shortage of professional manpower in the construction market, resulting in a rise in labor costs, difficulty in quality control of the concrete placed on the site, increase in retaining wall height, Rise and many other problems were exposed.

Korean Patent Publication No. 10-1218174

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

It can prevent the reinforced earth retaining wall from being displaced for a long time by using steel rods and grid stiffeners in multistage, and it is very strong against the dynamic load due to earthquake and vibration by the backfill of aggregate material installation and supporting block, The present invention provides a block-type reinforced earth retaining wall method in which a reinforcing rod and a reinforcing rod are installed.

To achieve the above object, the present invention provides a block type reinforced earth retaining wall construction method,

A step S100 of stacking a plurality of reinforcing earth retaining wall blocks arranged in a row on the basis of the foundations in a plurality of stages;

A step S200 of laying and embedding the embankment 20 on the backside of the reinforced earth retaining wall block after the first stage of the reinforced earth retaining wall block in the multi-stage laminating step S100 of the reinforcing earth retaining wall block;

In step S300, the embankment is laid on the backside of the reinforced earth retaining wall block in the compaction step S200 and the compaction is performed on the backside.

(S400) in which the steel rods or the grid reinforcements are sequentially installed between the multi-stages in the step S300 of compaction of the embankment in accordance with the multi-stages of the reinforcing earth retaining wall block;

(S500) of installing and finishing a finishing block on the upper surface of the reinforced earth retaining wall block (S500) after completing the embankment laying step (S300). The method of claim 1, wherein the block reinforcement material This is about the retaining wall construction method.

As described above, the block type reinforced earth retaining wall method in which the grid reinforcement and the steel bar of the present invention are installed can prevent the reinforced earth retaining wall from being displaced for a long time by using the steel rods and the grid reinforcement in multi- And an auxiliary block for supporting the steel bar, which is very strong against the dynamic load due to the earthquake and the vibration, thereby supporting the reinforcing earth retaining wall firmly.

1 is a sectional view showing a block type reinforced earth retaining wall construction method according to an embodiment of the present invention,
2 is a plan view of a block type reinforced earth retaining wall method in which a grid according to an embodiment of the present invention is installed,
3 is a plan view showing a block type reinforced earth retaining wall construction method in which a steel bar according to an embodiment of the present invention is installed,
4 is a schematic diagram showing a block according to an embodiment of the present invention,
5 is a flowchart illustrating a block type reinforced earth retaining wall construction method according to an embodiment of the present invention,
6 is a flowchart showing a method of installing a steel bar according to an embodiment of the present invention.

The present invention has the following features in order to achieve the above object.

In the block type reinforced earth retaining wall construction method of the present invention,

A step S100 of stacking a plurality of reinforcing earth retaining wall blocks arranged in a row on the basis of the foundations in a plurality of stages;

A step S200 of laying and embedding the embankment 20 on the backside of the reinforced earth retaining wall block after the first stage of the reinforced earth retaining wall block in the multi-stage laminating step S100 of the reinforcing earth retaining wall block;

In step S300, the embankment is laid on the backside of the reinforced earth retaining wall block in the compaction step S200 and the compaction is performed on the backside.

(S400) in which the steel rods or the grid reinforcements are sequentially installed between the multi-stages in the step S300 of compaction of the embankment in accordance with the multi-stages of the reinforcing earth retaining wall block;

After completing the embankment landing step S300, a finishing block is installed on the upper surface of the reinforced earth retaining wall block installed to complete the finishing block S500 (S500).

The present invention having such characteristics can be more clearly described by the preferred embodiments thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing in detail several embodiments of the present invention with reference to the accompanying drawings, it is to be understood that the present invention is not limited to the details of construction and the arrangement of components shown in the following detailed description or illustrated in the drawings will be. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front," "back," "up," "down," "top," "bottom, Expressions and predicates used herein for terms such as "left," " right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation. Also, terms such as " first "and" second "are used herein for the purpose of the description and the appended claims, and are not intended to indicate or imply their relative importance or purpose.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

FIG. 1 is a sectional view showing a block type reinforced earth retaining wall construction method according to an embodiment of the present invention, FIG. 2 is a plan view showing a block type reinforced earth retaining wall construction method in which a grid according to an embodiment of the present invention is installed, FIG. 4 is a schematic view showing a block according to an embodiment of the present invention, and FIG. 5 is a sectional view of a block type reinforcing earth retaining wall according to an embodiment of the present invention. 6 is a flowchart showing a method of installing a steel bar according to an embodiment of the present invention.

As shown in FIGS. 1 to 6, the block type reinforced earth retaining wall construction method in which the grid reinforcement and the steel rods are installed according to the present invention is characterized in that the strength of the block is suppressed and the advantages of the reinforced earth retaining wall By using only the strength method of the geogrid reinforced earth retaining wall that shares the earth pressure with friction resistance, the road surface is ground by using equipment such as a crane and a rolling machine at a position where the reinforced earth retaining wall block 10 is to be installed, The reinforced earth retaining wall block 10 is mounted on the front surface of the road surface in a multi-stage manner (S100).

The reinforced earth retaining wall block 10 is fixed to the road surface by applying a load to the reinforced earth retaining wall block 10 so that the back surface of the reinforced earth retaining wall block 10 (Not shown) is further installed on the upper surface of the nonwoven fabric.

Then, the embankment 20 is laid on the backside of the reinforced earth retaining wall block 10 that has been mounted in the first stage and then the embankment 20 is laid on the backside of the reinforced earth retaining wall block 10 using the equipment. The aggregate (21) is backfilled with the installation, and drainage is smooth. The backfill due to the installation of the aggregate (21) fills the space between the embankment (20) and the reinforced earth retaining wall block (10) each time the reinforced earth retaining wall block (10) is mounted in multiple stages.

The embankment 20 is laid on the backside of the reinforced earth retaining wall block 10 at step S300.

Further, another reinforced earth retaining wall block 10 is mounted on the upper portion of the reinforced earth retaining wall block 10 which is fixed in the first stage. At this time, the reinforced earth retaining wall block 10 is stacked upside down.

Then, the embankment 20 is laid on the multi-tier of the reinforced earth retaining wall block 10, wherein the steel rods 40 or the grid reinforcements 30 are sequentially installed between the multi- (S400)

As shown in FIG. 1, the reinforcing earth retaining wall block 10 and the grid reinforcement 30 are installed at the upper end of the embankment 20 in a manner that the steel rods 40 or the grid reinforcement 30 are sequentially installed, A reinforcing earth retaining wall block 10 and a steel rod 40 are installed at the upper end of the embankment 20. The reinforcing earth retaining wall block 10 and the grid reinforcement 30 (Grid-rigid-grid-rigid-rod or rigid-rod-rigid-rigid-grid) in such a way that they are installed in the same manner as the one in which they are installed.

In addition, the installation of the steel rods 40 and the grid reinforcement 30 may be installed between the second and third ends of the reinforced earth retaining wall block 10 to prevent the retaining wall from being displaced (twisted, deformed).

1, a reinforced earth retaining wall block 10 installed on the uppermost layer is provided with a finishing block (cap block) 50 on the upper surface thereof. (S600), and finishes the installation position and surroundings.

In step S400 in which the steel rods 40 or the grid reinforcements 30 are sequentially installed between the multi-stages without overlapping each other, first, as for the method of installing the grid reinforcement 30, The reinforcing earth retaining wall block 10 is formed on the upper surface of the reinforcing earth retaining wall block 10 and extends to the upper surface of the embankment 20. The holes of the reinforcing earth retaining wall block 10 are formed on the upper surface of the reinforcing earth retaining wall block 10, And is fixed without being moved in many directions while being caught by the engaging projections 12.

The reinforcing earth retaining wall block 10 and the embankment 20 are provided on the grid reinforcement 30 in the above-described state.

3 and 4, the reinforcing earth retaining wall block includes a coupling groove 11 formed on one surface (upper surface) of the reinforced earth retaining wall block, The reinforcing earth retaining wall block 10 in which a plurality of the reinforcing earth retaining wall blocks 10 arranged in a row is inserted is supported by the first supporting steel bar 41 at step S410.

3, a plurality of connecting bars 42 are connected to the first supporting bars 41. The connecting bars 42 are formed in the shape of a ring so that the connecting bars 42 are hooked on the first supporting bars 41, The connecting rod 42 is spaced apart from each other in the longitudinal direction of the first supporting rod 41 and connected to the first supporting rod 41 at a right angle (S420)

An auxiliary block 43 is provided at an end of the connecting rod 42 to be connected to the connecting rod 42. The connecting rod 42 is positioned at a predetermined position by the auxiliary block 43, An insertion groove 45 is formed on one side of the auxiliary block 43 so that the connecting rod 42 and the second supporting rod 44 are connected to each other as shown in FIG. The insertion groove 45 is formed in the shape of "T", and the second supporting rod 44 is inserted into the horizontal portion and connected to the other auxiliary block 43, and the connecting rod 42 is inserted into the vertical portion , The horizontal portion of the insertion groove 45 is relatively deeply deeper than the vertical portion, and the depths of the recesses are mutually different.

As described above, the plurality of auxiliary blocks 43 installed in correspondence with the connecting bars 42 are connected and supported by the second supporting bars 44 (S440)

10: Reinforced earth retaining wall block 11: Coupling groove
12: engaging projection 20: embankment
21: Aggregate 30: Grid reinforcement
40: steel bar 41: first supporting steel bar
42: connecting rod 43: auxiliary block
44: second support steel bar 45:
50: closed block

Claims (4)

In the block type reinforced earth retaining wall construction method,
A step S100 of stacking a plurality of reinforcing earth retaining wall blocks 10 arranged in a row on a base-forming front surface in a multi-stage manner;
A step S200 of laying and embedding the embankment 20 on the backside of the reinforced earth retaining wall block 10 after the first stage of the reinforced earth retaining wall block 10 in the multi-stage laminating step S100 of the reinforced earth retaining wall block 10, ;
A step S300 of laying the embankment 20 on the backside of the reinforced earth retaining wall block 10 in the compaction step S200 of the embankment 20 and compaction thereof;
The step 4000 of installing the steel rods 40 or the grid stiffeners 30 in a sequential manner without overlapping between the multi-steps in the step S300 of consolidating the embankment 20 in accordance with the multiple stages of the reinforced earth retaining wall block 10 );
(S500) of finishing a finishing block (60) on the upper surface of the reinforced earth retaining wall block (10) installed after the compaction step (S300) of laying the embankment (20)
In step S400 in which the steel rods 40 or the grid reinforcements 30 are sequentially installed without overlapping each other,
A grid reinforcement 30 is installed at the upper end of the reinforced earth retaining wall block 10 and the embankment 20 and a steel bar 40 is installed at the upper end of the next reinforcing earth retaining wall block 10 and the embankment 20, And the grid reinforcement 30 is installed at the upper end of the embankment 20 in the reinforced earth retaining wall block 10,
In the step S400 of installing the steel rods, a first supporting steel bar 41 is inserted into the coupling groove 11 formed on one surface of the reinforced earth retaining wall block 10 to support the reinforcing earth retaining wall block 10 in which a plurality of the reinforcing- A plurality of connecting bars 42 are spaced apart from each other in the longitudinal direction of the first supporting bars 41 and connected to the first supporting bars 41 at a right angle S420; And the auxiliary supporting block 43 is connected to the connecting rod 42. The connecting rod 42 is positioned at the predetermined position by the auxiliary block 43 and the first supporting rod 41 is fixed, And supporting and supporting a plurality of auxiliary blocks 43 installed in accordance with the connecting rod 42 by a second supporting steel bar 44 in step S440.
An insertion groove 45 is formed on one side of the auxiliary block 43 to connect the connecting rod 42 and the second supporting rod 44. The insertion groove 45 is formed in a T shape, The second supporting rod 44 is inserted into the other auxiliary block 43 and the connecting rod 42 is inserted into the vertical portion,
Wherein a horizontal portion of the insertion groove (45) is relatively deeply fasciated relative to a vertical portion so that depths of the recesses of the horizontal portion are greater than that of a vertical portion of the insertion groove (45).
delete delete delete

Images