KR20090028184A - A retaining wall for using a steel stiffener - Google Patents

A retaining wall for using a steel stiffener Download PDF

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Publication number
KR20090028184A
KR20090028184A KR1020070093593A KR20070093593A KR20090028184A KR 20090028184 A KR20090028184 A KR 20090028184A KR 1020070093593 A KR1020070093593 A KR 1020070093593A KR 20070093593 A KR20070093593 A KR 20070093593A KR 20090028184 A KR20090028184 A KR 20090028184A
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KR
South Korea
Prior art keywords
retaining wall
block
anchor
insertion groove
wall block
Prior art date
Application number
KR1020070093593A
Other languages
Korean (ko)
Inventor
정정교
Original Assignee
정정교
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 정정교 filed Critical 정정교
Priority to KR1020070093593A priority Critical patent/KR20090028184A/en
Publication of KR20090028184A publication Critical patent/KR20090028184A/en

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
    • E02D29/0241—Retaining or protecting walls comprising retention means in the backfill the retention means being reinforced earth elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/025—Retaining or protecting walls made up of similar modular elements stacked without mortar
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0258—Retaining or protecting walls characterised by constructional features
    • E02D29/0266—Retaining or protecting walls characterised by constructional features made up of preformed elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/30—Miscellaneous comprising anchoring details

Abstract

The present invention relates to a retaining wall structure using a metal reinforcing material. The retaining wall includes a block body having a hollow portion, a retaining wall block having a pair of first shear keys, a second shear key, a shear key insertion groove, and a T-shaped anchor insertion groove, and the T An anchor consisting of a T-shaped anchor body inserted into and fixed to the female anchor insertion groove and a fixed plate connected to one side of the T-shaped anchor body and having a fastening hole formed at the center thereof, and a connecting portion connected to the fixed plate of the anchor formed at the front and rear It is formed of a fixing plate having a fixing hole and a plurality of shear projections are formed at regular intervals on the upper and lower surfaces to be made of a metal plate to impart a shear force to the retaining wall block.

Therefore, the retaining wall block formed on the upper layer can be prevented from flowing forward or sideways to secure structural stability of the retaining wall, and an anchor for inserting and fixing an anchor used as a reinforcing member in the incision in the upper surface of the retaining wall block. Since the insertion groove is formed, the retaining wall block can be conveniently used in not only the land but also the incision.

Description

Retaining wall structure using metal reinforcement {A retaining wall for using a steel stiffener}

The present invention relates to a retaining wall structure for the protection of land and incisions, in particular, by using a variety of reinforcing materials, such as retaining wall block and its connecting device, when the retaining wall is constructed by applying to the land or cut in the retaining wall construction block by earth pressure or creep Retaining wall structure using a metal reinforcement to ensure the structural stability by minimizing the occurrence of vertical and horizontal displacement of the.

In general, the retaining wall is a structure to prevent the earth and sand from collapsing due to the accumulation of land and cuts formed by civil works such as slopes, embankments, coasts, and landscaping walls on roadsides, and topographic factors and pressure distribution applied to the retaining wall after construction. Considering such construction.

The conventional retaining wall is formed by arranging reinforcing bars forming a frame of the retaining wall in the form of a retaining wall or incision, wrapping the reinforcing bar with formwork, and then pouring concrete and curing the form between the formwork to form the wall. It was constructed by filling the reinforcement soil including soil, crushed stone, rubble, etc. on the back side.

And, the retaining wall construction block used to build the retaining wall as described above is to prevent the collapse of the soil due to the loss of soil on the land or incision, such a retaining wall construction block construction of the apartment complex, construction of road cut soil, Unlike concrete retaining walls, it is widely used for construction of masonry retaining walls unlike construction of concrete retaining walls in construction for securing slope stability, bridge wing wing construction, and other waterways and embankments.

In the construction of the masonry retaining wall as described above, a protrusion is formed on the upper surface of the block, and a protrusion seating groove corresponding thereto is formed on the lower surface thereof so that the protrusion of the upper block of the lower block is seated on the protrusion seating groove of the lower block of the upper block. And a construction method of inserting geogrids between upper and lower block layers and stacking them has been widely used.

The retaining wall constructed by the protrusion formed on the upper surface of the conventional retaining wall block and the protrusion mounting groove formed on the lower surface of the retaining wall is reduced in frictional resistance of the geogrid inserted between the upper and lower retaining wall blocks by earth pressure, so that horizontal displacement of the retaining wall block is generated. There was a problem.

In addition, the conventional retaining wall block has the advantage of preventing the retaining wall block to be pushed forward due to the continuous earth pressure by using a fixed pin, but prevents the flow of the rear side of the block when the block is laid Since the component is not provided, when the pressure in the lateral direction acts as the rear side of the block flows laterally, the block is difficult to reliably assemble.

In addition, when the retaining wall is low, it is preferable to incline the retaining wall to be almost vertical so that more soil is incorporated into the retaining wall. However, the slope of the retaining wall cannot be adjusted according to the height of the retaining wall. Conventional retaining wall blocks cannot be used in cutouts and can only be used in fills because they do not have a structure to fix anchors used as reinforcing members in cutouts.

On the other hand, the conventional reinforcement soil retaining wall system as described above is not applicable to the cut portion was limited to only the fill portion retaining wall. As a result, the panel retaining wall, which has a rough front, was used as a front nailing (push-up) method with perforations on the front, or by reinforcing earth method of finishing by attaching a finishing device after slope stabilization (soil nailing).

However, the panel-type (aka PEM) retaining wall has a problem that the construction cost is too expensive because it uses a pressurized grouting method, and the appearance is not beautiful because it uses a concrete panel on the front.

In addition, in the case of the method of connecting the nailing to the conventional block-reinforced earth method, the slope is stable, but the structural stability of the block and the nailing connection is lacking, which has a disadvantage of wide application.

Therefore, the present invention has been made to solve the problems of the conventional retaining wall structure, by using a variety of reinforcing materials, such as retaining wall block and its connecting device, such as retaining wall is constructed by applying earth pressure or creep to retaining wall or cut-off site It is an object of the present invention to provide a retaining wall structure using a metal reinforcement material that can secure structural stability by minimizing occurrence of vertical and horizontal displacement of a block.

In order to achieve the above object, the present invention provides a block body having a triangular hollow portion formed in the center thereof, and a pair of first shear keys of a circular shape are disposed between the hollow portions on an upper surface of the front side of the block body. Protrudingly formed, second front end keys are formed on the rear side of the block body, and front end key insertion grooves are formed on both rear sides of the block body to insert the second front end key of the lower block body. An anchor consisting of a retaining wall block having a T-shaped anchor insertion groove formed on one surface thereof, a T-shaped anchor body fixedly inserted into the T-shaped anchor insertion groove, and a fixing plate connected to one side of the T-shaped anchor body and having a fastening hole formed at the center thereof. And a connecting part connected to the fixing plate of the anchor is formed at the front side, and a fixing part having a fixing hole is formed at the rear side thereof. A plurality of shear protrusions are formed at intervals to form the retaining wall with a metal plate that is capable of imparting shear force to the retaining wall block.

In addition, the T-shaped anchor insertion groove of the retaining wall block is provided with an inclined groove formed to be inclined so that its position is lowered toward the rear.

In addition, the fixing bracket is fixed to the hollow portion of the retaining wall block in a state connected to the reinforcing bar, and the rear end of the reinforcing bar is fixed to the cutting surface of the slope is installed.

As described above, according to the retaining wall structure using the metal reinforcing material according to the present invention, the retaining wall block formed on the upper layer can be prevented from flowing forward or sideways, thereby securing structural stability of the retaining wall, and the weight of the retaining wall block. It prevents the center from moving backward and prevents visual full stomach phenomenon, and reinforces the thickness of the front part to prevent cracks from occurring in the front part of the block, and as a reinforcement member at the incision on the upper surface of the retaining wall block. An anchor insertion groove is formed to insert and fix the anchor used so that the retaining wall block can be conveniently used in not only the land but also an incision.

In addition, since the retaining wall block and the nailing can be integrally constructed, the construction is convenient and there is a structural and environmentally friendly advantage as a landscape retaining wall by using a natural stone treated block on the front surface of the retaining wall.

The technical problem achieved by the present invention and the practice of the present invention will be more clearly understood by the preferred embodiments of the present invention described below. The following examples are merely illustrated to illustrate the present invention and are not intended to limit the scope of the present invention.

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

The retaining wall structure constructed by using the retaining wall block and the metal reinforcing material will be described with reference to FIGS. 1 to 3, wherein the retaining wall is formed in a plurality of retaining wall blocks 10 which are constructed in an assembled state, and the retaining wall blocks 10 are provided in the retaining wall block 10. An anchor 20 to be connected and a metal plate 30 connected to the anchor 20 to support the retaining wall.

That is, the retaining wall block 10, which is an important element constituting the retaining wall, is provided with a block body 12 having a triangular hollow portion 11 formed at the center thereof, and has a circular shape on the front surface of the block body 12. The first pair of shearing keys 13 are protruded from each other with the hollow portion 11 interposed therebetween, and the second shearing key 14 is protruded from the upper surface of the rear side of the block body 12, respectively. Shear key insertion grooves 15 into which the second shear key 14 of the lower block body 12 is inserted are formed on both rear sides of the body 12, respectively, and the T-shaped anchor insertion grooves are formed on one surface of the block body 12. 16) is formed.

Therefore, since the retaining wall block 10 is formed in a plurality of retaining walls in up, down, front and rear, and left and right directions, a plurality of retaining wall blocks 10 must be assembled with each other, and the retaining wall block 10 includes a hollow portion 11. ) And the first shear key 13, the second shear key 14, and the shear key insertion groove 15 are assembled to each other, and the shear force is applied to each retaining wall block 10 so that the assembled state is not deformed. will be.

On the other hand, the anchor 20, which is assembled to the retaining wall block 10 to impart stability to the retaining wall, has a T-shaped anchor body 21 inserted into and fixed to the T-shaped anchor insertion groove 16, and the T-shaped anchor body ( 21 is connected to one side of the fixing plate 23 is formed with a fastening hole 22 in the center thereof.

That is, the anchor 20 is connected to the metal plate 30 through the fixing plate 23 at the rear end thereof in a state of being fixed to the T-shaped anchor insertion groove 16 of the retaining wall block 10. By making it firmly installed, the retaining wall block 10 constituting the retaining wall is firmly held to maintain the stable retained wall.

In addition, the metal plate 30 connected to the retaining wall block 10 through the anchor 20 to impart shear force to the retaining wall block 10 is connected to the fixing plate 23 of the anchor 20. Is formed at the front side, and a fixing part 33 having a fixing hole 32 is formed at the rear of the metal plate 30, and a plurality of shear protrusions are formed on the upper and lower surfaces of the metal plate 30 at regular intervals ( 34 is formed to impart the shear force to the retaining wall block 10.

Therefore, the connection state of the retaining wall block 10, the anchor 20 and the metal plate 30 constituting the retaining wall will be described with reference to FIGS. 4 and 5, and the T-shaped anchor formed on the upper surface of the retaining wall block 10. An anchor 20 is inserted into the insertion groove 16, and the metal plate 30 arranged horizontally with the anchor 20 is fixed to the anchor plate 23 of the anchor 20 through a connecting portion 31 in front of the anchor plate 20. And the fixing part 33 formed at the rear end of the metal plate 30 is fixed to the retaining wall block 10 or concrete in this state.

And, as shown in Figure 6 when using the retaining wall block 10 and the metal reinforcement to build the retaining wall in the incision, a plurality of retaining wall blocks 10 is fixed to the upper and lower surfaces of the metal plate 30, A shearing protrusion 34 for applying a shear force to the retaining wall block 10 is formed in the metal plate 30 to be in contact with the retaining wall block 10. Accordingly, the retaining wall block 10 is formed by the metal plate 30. ) Can catch the flow.

In addition, as shown in Figure 7 as an embodiment of the retaining wall block 10, the T-shaped anchor insertion groove 16 of the retaining wall block 10 is inclined groove formed to be inclined so as to lower the position ( 17 is provided, the inclined groove 17 is formed in the retaining wall block 10 as described above, it is possible to adjust the vertical position of the anchor 20 is fastened to the inclined groove 17, the anchor ( The position of the metal plate 30 connected to 20) can also be adjusted.

Therefore, the inclined grooves 17 are formed in the retaining wall block 10 to adjust the vertical position of the metal reinforcement to have excellent field applicability to avoid back obstacles (pipes, manholes, walls, etc.). Even when the retaining wall block 10 is to be connected to water, it is possible to directly connect to the wall of the retaining wall by utilizing a simple deformation of the metal reinforcement.

Meanwhile, in the retaining wall structure using the metal reinforcing material, as shown in FIG. 8, the fixing bracket 41 is fixed to the hollow part 11 of the retaining wall block 10 in a state of being connected to the reinforcing bar 42. At the rear end of the reinforcing bar 42, the pressure plate 43 fixed to the cut surface of the slope is fixedly installed. Since the pressure plate 43 necessary for nailing can be connected to the retaining wall block 10, the nailing and the retaining wall block are installed. This integrated construction has an advantage, and by using the retaining wall block 10 treated with natural stone on the front surface of the retaining wall, structural and environmentally friendly advantages as a landscape retaining wall can be achieved.

That is, in retaining wall construction using a metal reinforcing material, first, the reinforcing method (soil nailing and rock bolt) is applied to the cut surface that is arranged according to the shape of the slope, and then the pressure plate 43 is finished on the finishing surface. Here, after the structural calculation to the position where the retaining wall block 10 is placed, the reinforcing bar 42 is pulled out, and the reinforcing bar 42 pulled from the inclined groove 17 every time the retaining wall block 10 is stacked. ) And the pressure plate 43 are assembled with a nut 44 to prevent separation and finish with compaction.

Therefore, the retaining wall constructed by using the metal reinforcement as described above does not cause a structural problem by not using a double construction method, and does not cause an increase in construction cost because it does not use a separate device, and the back water pressure is the front of the retaining wall. Since it is discharged through the part, even if a separate drainage pipe is not installed, it does not cause structural problems.

The present invention has been described above with reference to one embodiment shown in the drawings, but those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

1 is a perspective view showing a retaining wall block forming a retaining wall structure according to the present invention;

2 is a plan view showing the structure of the retaining wall block according to the present invention;

3 is an exploded perspective view showing a metal reinforcing material installed in the retaining wall block according to the present invention;

4 is a plan view showing a state in which a retaining wall block and a metal reinforcement are connected according to the present invention;

5 is a side view of FIG. 4;

6 is a perspective view showing a state of constructing the retaining wall in the incision using the retaining wall block and the metal reinforcement according to the present invention,

7 is a cross-sectional view showing another embodiment of a retaining wall block according to the present invention;

8 is a state diagram showing a state in which the retaining wall block and the pressure plate according to the present invention is connected.

Explanation of symbols on the main parts of the drawings

10: retaining wall block 11: hollow portion

12 block body 13 first shear key

14: second shear key 15: shear key insertion groove

16: T-shaped anchor insertion groove 17: inclined groove

20: anchor 21: T-shaped anchor body

22: fastening hole 23: fixing plate

30 metal plate 31 connection

32: fixing hole 33: fixing part

34: shear projection 41: fixing bracket

42: reinforcing bar 43: pressure plate

44: nuts

Claims (3)

A block body 12 having a triangular hollow portion 11 is provided at the center thereof, and a pair of first shearing keys 13 in a circular shape is formed on the front surface of the front side of the block body 12. The first and second shear keys 14 are formed to protrude from each other, and each of the second block of the lower block body 12 is formed on both rear surfaces of the block body 12. A retaining wall block 10 having a shear key insertion groove 15 into which a shear key 14 is inserted, respectively, and having a T-shaped anchor insertion groove 16 formed on one surface of the block body 12; and The T-shaped anchor body 21 inserted into the T-shaped anchor insertion groove 16 and a fixing plate 23 connected to one side of the T-shaped anchor body 21 and having a fastening hole 22 formed in the center thereof. An anchor 20 made up of; And A connecting portion 31 connected to the fixing plate 23 of the anchor 20 is formed at the front side, and a fixing portion 33 having a fixing hole 32 is formed at the rear thereof, and a plurality of spaced portions are arranged at a predetermined interval on the upper and lower surfaces thereof. Retaining wall structure using a metal reinforcement comprising a; a shear plate (34) is formed to provide a shear force to the retaining wall block (10). The method of claim 1, Retaining wall structure using a metal reinforcement, characterized in that the T-shaped anchor insertion groove (16) of the retaining wall block 10 is provided with an inclined groove (17) formed to be inclined so that its position is lowered to the rear. The method of claim 1, A fixing bracket 41 is fixed to the hollow part 11 of the retaining wall block 10 in a state of being connected to the reinforcing bar 42, and a pressure plate 43 fixed to the cut surface of the slope is provided at the rear end of the reinforcing bar 42. Retaining wall structure using a metal reinforcement, characterized in that the fixed installation.
KR1020070093593A 2007-09-14 2007-09-14 A retaining wall for using a steel stiffener KR20090028184A (en)

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Application Number Priority Date Filing Date Title
KR1020070093593A KR20090028184A (en) 2007-09-14 2007-09-14 A retaining wall for using a steel stiffener

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Application Number Priority Date Filing Date Title
KR1020070093593A KR20090028184A (en) 2007-09-14 2007-09-14 A retaining wall for using a steel stiffener

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101107370B1 (en) * 2009-06-22 2012-01-19 한국건설기술연구원 Block assembling type reinforced earth retaining wall using steel strip reinforce member
WO2018107302A1 (en) * 2016-12-12 2018-06-21 Tierra Reforzada S.A. Device for anchoring a horizontal loop and diffuser plates for steel reinforcement in a higher-strength mechanically stabilised wall

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101107370B1 (en) * 2009-06-22 2012-01-19 한국건설기술연구원 Block assembling type reinforced earth retaining wall using steel strip reinforce member
WO2018107302A1 (en) * 2016-12-12 2018-06-21 Tierra Reforzada S.A. Device for anchoring a horizontal loop and diffuser plates for steel reinforcement in a higher-strength mechanically stabilised wall

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