KR100621664B1 - Block Retaining Wall Reinforcement Structure - Google Patents

Abstract

The present invention relates to a block retaining wall reinforcing structure, and more particularly, it is possible to reduce the material cost, thereby reducing the construction cost, improve the construction and economical efficiency, furthermore, the binding force between the block and the reinforcement is strengthened and permanent stability A block retaining wall reinforcement structure that can be secured.

Description

Block retaining wall reinforcement structure {structure of block type reinforcement retaining wall}

1 is a perspective view showing a block for a block retaining wall reinforcement structure according to an embodiment of the present invention.

2 is a cross-sectional view taken along line A-A of FIG.

Figure 3 is a perspective view showing a coupling pin for the block retaining wall reinforcement structure according to an embodiment of the present invention.

Figure 4 is a perspective view showing a reinforcing material for the block retaining wall reinforcement structure according to an embodiment of the present invention.

FIG. 5 is a sectional view taken along line B-B in FIG. 4; FIG.

6 is a perspective view showing a block retaining wall reinforcing structure according to a preferred embodiment of the present invention.

7 is a longitudinal cross-sectional view of FIG. 6;

8 is a graph showing the pullout resistance according to the vertical stress tested by varying the length (L) of the protrusion of the reinforcement of FIG.

9 is a graph showing the pullout resistance according to the width (F) and the length (L) of the protrusion of the reinforcement of FIG.

FIG. 10 is a graph showing pullout resistance according to the amount of drawing tested by varying the length L of the protrusion of the reinforcement of FIG. 4. FIG.

Figure 11 a, b, c is a graph showing the pull-out resistance ratio according to the vertical stress tested by changing the shape (L / F) of the protrusion of the reinforcement of Figure 4;

<Explanation of symbols for the main parts of the drawings>

100: block 111: front

112: rear 113: upper surface

114: lower surface 115: side

115a: recessed portion 115b: block portion

130: pin receiving portion 130a: rear wall

150: pin head accommodation portion 150a: rear wall surface

170: opening 200: coupling pin

210: pin portion 230: pin head portion

300: reinforcing material 310: protrusion

330: insertion hole 350: rib

The present invention relates to a block retaining wall reinforcing structure, and more particularly, it is possible to reduce the material cost, thereby reducing the construction cost, improve the construction and economical efficiency, furthermore, the binding force between the block and the reinforcement is strengthened and permanent stability A block retaining wall reinforcement structure that can be secured.

Block retaining wall structure is used to prevent the falling and collapse of the soil in the embankment and the like, a plurality of blocks are stacked on each other to form the retaining wall. Such a block retaining wall structure is an invention filed by the applicant of the present invention, and is disclosed in Korean Unexamined Patent Publication No. 2002-0002225. According to this publication, at least one pin receiving portion is formed in each block along the stacking direction and at least one pin head receiving recessed along the stacking direction from the stacking surface to correspond to the pin receiving portion of another block adjacent to each block. And a coupling pin having a pin-shaped pin portion inserted into the pin accommodation portion of the block and a pin head portion accommodated in the pin head accommodation portion to be in contact with at least one inner wall surface of the pin head accommodation portion. As a result, the retaining wall having various inclination angles can be selectively constructed.

On the other hand, the reinforcing material used to reinforce the tensile strength of the ground resists the drawing by the frictional force at the contact surface with the ground, thereby achieving its function. Such a reinforcing material is an invention filed by the applicant of the present invention, and is disclosed in Korean Unexamined Patent Publication No. 1999-0074853. According to this publication, when a plurality of protrusions are formed such that both sides in the longitudinal direction of a general reinforcement form irregularities, the soil is filled between the protrusions and the protrusions, so that the soil and the soil come into contact with each other. It is much larger than resistance.

On the other hand, the reinforcing material used in the reinforcement method is a conventional reinforcing material, such as steel reinforcement, soft fiber reinforcement, rigid fiber reinforcement to reinforce the tensile strength.

However, most geogrid reinforcements are used depending on imports, and unnecessary foreign currency is leaked due to overseas payment of block patent royalty (see US 3,783,566, 4,802,320, etc.). Opportunity loss costs are incurred due to the period of import of foreign materials.

Moreover, the above-described reinforcement may be dislodged due to the uncertainty of the binding method between the front block and the reinforcement.

In addition, it is impossible to install in the case of a lack of back length when using the flexible fiber and rigid fiber reinforcement.

In particular, the steel reinforcement is a retaining wall linear failure due to the deformation of the bent portion, and the anchor body and the reinforcement is a separable structure in the pull-out fracture when the anchor body tensile failure. In addition, the insertion anchor and the reinforcement when the cut retaining wall is applied is an incomplete connection structure.

Thus, by improving various problems of the conventional reinforcement and block, it is necessary to develop a new retaining wall system that can be applied not only to the fill wall retaining wall such as road construction or site construction but also to the cut section area.

The present invention has been made in order to solve the above-mentioned problems, the block retaining wall that can reduce the construction cost because the material cost can be lowered by reducing the additional costs due to import of reinforcement materials as well as patent technology fees for using the blocks to pay overseas The purpose is to provide a reinforcing structure.                         

In addition, it is possible to use a variety of types of earth and sand, which is not limited to the usefulness of the site-produced soil as backfill soil, to provide a block retaining wall reinforcement structure that can improve the workability and economics.

Furthermore, when applied to areas where the back length of the reinforcement is insufficient, such as the cut part, it is possible to expect a perfect fastening effect with the back anchor body), thereby providing a block retaining wall reinforcement structure that can strengthen the binding force and ensure permanent stability.

In addition, since the construction can be made to use the ground condition to the maximum possible by minimizing the cut, it is to provide a block retaining wall reinforcement structure that can prevent civil complaints such as environmental damage in advance.

In the block retaining wall reinforcing structure of the present invention for achieving the above object, in a block retaining wall reinforcing structure having a plurality of blocks stacked on each other, at least one pin receiving portion communicates with the pin receiving portion of another block adjacent to the block. A block having at least one pin head accommodation portion to be formed; A coupling pin formed of a pin part inserted into the pin receiving part and a pin head part formed at one end of the pin part and accommodated in the pin head receiving part; It includes a reinforcing material formed with an insertion hole to be fitted to the coupling pin.

According to this configuration, by reducing the costs associated with the import of reinforcement materials, as well as patent technology fees for using blocks paid abroad, construction costs can be reduced because material costs can be lowered.

In addition, since various types of soils can be used as backfill soils that are not limited to the usefulness of on-site soils, construction and economics can be improved.

Furthermore, when applied to areas where the back length of the reinforcement is insufficient, such as the cut part, it is possible to expect a perfect fastening effect with the rear anchor body, thereby strengthening the binding force and securing permanent stability.

In addition, it can be constructed to minimize the cutting to make the most of the ground conditions available to prevent the occurrence of civil complaints, such as preventing environmental destruction in advance.

In the above-described configuration, both side surfaces of the reinforcement in the longitudinal direction may have a plurality of protrusions in the form of unevenness, so that not only frictional resistance, but also passive resistance is generated between the protrusions and the protrusions, and thus the pullout resistance may be greatly improved.

In addition, when the pin portion has a polygonal cross-sectional shape and the insertion hole has a polygonal shape corresponding to the pin portion, when the pin portion is inserted into the insertion hole, the pin portion may be easily fixed without turning.

On the other hand, when at least one rib is further formed at the edge of the insertion hole in a direction perpendicular to the plane of the reinforcement, the pin portion is coupled to the insertion hole in a state where the rib is fixed to the pin head accommodation portion, so that the tightening force can be further enhanced.

Furthermore, if the reinforcing material is plastic, the plating process required when the reinforcing material is steel is unnecessary, thereby reducing the cost according to the plating process.

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

For reference, among the configurations of the present invention to be described below, the same configuration as the prior art will be referred to the above-described prior art, and a detailed description thereof is omitted.

1 is a perspective view of a block retaining wall reinforcing structure block according to an embodiment of the present invention, Figure 2 is a cross-sectional view taken along the line AA of Figure 1, Figure 3 is a block retaining wall according to an embodiment of the present invention 4 is a perspective view illustrating a coupling pin for reinforcing structures, FIG. 4 is a perspective view illustrating a reinforcing member for a block retaining wall reinforcing structure according to an embodiment of the present invention, FIG. 5 is a cross-sectional view taken along line BB of FIG. 4, and FIG. 6. Is a perspective view showing a block retaining wall reinforcing structure according to a preferred embodiment of the present invention, FIG. 7 is a longitudinal sectional view of FIG. 6, and FIG. 8 is a vertical stress experimented by changing the length L of the protrusion of the stiffener of FIG. 4. 9 is a graph showing the pullout resistance according to Figure 9 is a graph showing the pullout resistance according to the width (F) and the length (L) of the protrusion of the reinforcement of Figure 4, Figure 10 is a length (L) of the protrusion of the reinforcement of Figure 4 According to the amount of experiment 11 is a graph showing the drawing resistance, and a, b and c of FIG. 11 are graphs showing the drawing resistance ratio according to the vertical stress tested by changing the shape (L / F) of the protrusion of the reinforcing member of FIG.

1 to 7, the block retaining wall reinforcing structure according to the present embodiment is inserted into the block 100 having the pin receiving portion 130 and the pin head receiving portion 150 and the pin receiving portion 130. Reinforcement 300 is formed with a coupling pin 200 consisting of a pin head portion 230 accommodated in the pin portion 210 and the pin head receiving portion 150, and the insertion hole 330 to be fitted to the coupling pin 200 )

As shown in FIG. 1, the blocks 100 that are stacked on each other to form the retaining wall structure include a front face 111 facing forward, a rear face 112 facing the front face 111, an upper and lower face 114, and It has both sides 115.

Grooved recesses 115a having recessed side surfaces are formed in both side surfaces 115, and both sides of the recesses 115a are formed with convex portions 115b protrudingly opposed to the recesses 115a. It is.

The block 100 may be formed to have a lateral width of the rear surface 112 smaller than the lateral width of the front surface 111.

The planar shape of the block 100 may be formed in various ways as necessary.

As shown in FIG. 2, each block 100 is provided with a plurality of pin accommodation portions 130 formed downward from the upper surface 113 along the stacked direction, and each pin accommodation portion 130 has left and right sides. It is arranged at regular intervals in the direction, it is preferably in the shape of a sand.

Here, the pin receiving portion 130 may be formed in the groove shape in the left and right directions of the block 100, as in the embodiment of the prior art presented above.

The lower surface 114 of the block 100 is formed to be recessed from the lower surface 114 to correspond to the pin receiving portion 130 of another adjacent block 100, the pin head receiving portion 150 is provided with a square shape have.

The pin head receiving portion 150 is an installation reference plane of the blocks 100 stacked on each other, and the rear wall surface 150a in the pin head receiving portion 150 to which the pin head portion 230 of the coupling pin 200 comes into contact is pin. The pin receiving portion 130 communicates with the rear wall surface 130a in the receiving portion 130 (see FIG. 7).

In addition, the pin head accommodation portion 150 is biased forward with respect to the axis of the pin accommodation portion 130.

Here, the pin head accommodating part 150 may be formed in a groove shape in the left and right directions of the block 100, as in the exemplary embodiment of the related art.

At least one open portion 170 penetrated vertically from the upper surface 113 to the lower surface 114 is provided between the pin accommodation portion 130 and the pin head accommodation portion 150 and the rear surface 112.

The opening 170 serves to reduce the weight of the block 100 and may be filled with mortar or aggregate and / or soil in a stacked state.

Meanwhile, as shown in FIG. 3, the coupling pin 200 for the retaining wall structure of the block 100 includes a pin portion 210 and a pin portion 210 that are inserted into the pin accommodation portion 130 of the block 100. And a pin head portion 230 formed at one end of the pin head accommodating part 150 to be in contact with at least one inner wall surface of the pin head accommodating part 150 of the block 100.

The coupling pin 200 is made of metal, plastic, concrete molding, etc., which are easy to mold and have sufficient shear strength.

The pin portion 210 has a rectangular cross-sectional shape corresponding to the pin receiving portion 130 of the block 100. Here, the pin portion 210 may have a polygonal or circular cross-sectional shape, such as a triangle or a pentagon, according to the shape of the pin receiving portion 130 of the block 100.

The pin head portion 230 extends larger than the cross-sectional area of the pin portion 210 and has a rectangular cross-sectional shape.

With regard to the structure of the pin portion 210 and the pin head 230, it is presented in the publication of the Korean Patent Application Publication No. 2002-0002225 proposed in the prior art, it will be referred to the above-described publication and detailed description Will be omitted.

On the other hand, the reinforcing member 300 for reinforcing the tensile strength, as shown in Figure 4, to form a plurality of protrusions 310 so that both sides of the longitudinal direction is in the form of unevenness.

Thus, if a plurality of protrusions 310 are formed in the reinforcement 300, as shown in the graph shown in Figure 8, the pullout resistance according to the vertical stress than the conventional reinforcement (L0 in Figure 8) without the protrusion 310 It can be improved at least twice.

Here, F in the graph of FIGS. 8 to 11 refers to the width of the protrusion 310, that is, the length of the line formed protruding in the width direction of the reinforcement 300, and L is the length of the protrusion 310 and the width. It is the length of a line formed along another adjacent width.

On the other hand, as can be seen in the graph shown in Figure 9, if the width (F) and length (L) of the protrusion 310, that is, the shape of the protrusion 310 is properly determined and used through experiments, Economics can be increased by reducing the number appropriately.

In addition, referring to the graph of FIG. 10, it can be seen that the maximum pullout resistance acts at the displacement generation point smaller than the existing reinforcement (LO in FIG. 10).

Furthermore, referring to a, b and c of FIG. 11, it can be seen that the shape ratio L / F of the length to the width of the protrusion 310 at which the pullout resistance is the maximum is two.

Thus, by changing the shape of the protrusion 310 in various ways it will be possible to generalize the behavior characteristics of the reinforcing material 300 through repeated experiments.

As such, when the protrusions 310 having concavo-convex shapes are formed on both side surfaces of the reinforcing material 300 in the longitudinal direction, the soil is filled between the protrusions 310 and the protrusions 310, so that the soil and the soil come into contact with each other. In addition, since passive resistance is generated between the protrusion 310 and the protrusion 310, the pullout resistance may be greatly improved.

The reinforcing member 300 is formed with an insertion hole 330 that is fitted to the pin portion 210 of the coupling pin 200, the insertion hole 330 is preferably a rectangular shape corresponding to the pin portion 210, the pin portion It may vary depending on the shape of 210.

As such, when the pin portion 210 has a polygonal cross-sectional shape and the insertion hole 330 is a polygonal shape corresponding to the pin portion 210, when the pin portion 210 is inserted into the insertion hole 330, the pin portion 210 is It can be easily fixed without turning.

Here, when the insertion hole 330 of the reinforcement 300 is fitted to the pin portion 210 of the coupling pin 200, as shown in Figure 6, the plane of the reinforcement 300 is fitted so as to be horizontally arranged, The block 100 is preferably formed long and arranged in a direction perpendicular to the stacking direction.

Meanwhile, as illustrated in FIG. 5, at least one rib 350 is further formed in the insertion hole 330 to form a predetermined angle in a direction perpendicular to the plane of the reinforcement 300 in the insertion hole 330. It is preferable.

As such, when the rib 350 is formed when the pin portion 210 of the coupling pin 200 is inserted into the insertion hole 330, the pin portion (3) is fixed in the state where the rib 350 is fixed to the pin head accommodation portion 150. Since the 210 is coupled to the insertion hole 330, the fastening force may be further strengthened.

Furthermore, the reinforcing material 300 is preferably plastic.

In this case, when the reinforcement 300 is a steel material during rain or groundwater inflow, such as mortar, aggregate, earth and sand should be plated to prevent rust. If the reinforcement 300 is made of plastic, the plating process is unnecessary because the plating process is unnecessary. The cost can be reduced.

The operation of this embodiment having the above-described configuration will be described below.

As shown in Figure 6, in order to form a retaining wall structure by stacking each block 100, the coupling pin 200 is coupled to the pin receiving portion 130 of the block 100. At this time, the surface coinciding with the one side surface of the pin head portion 230 on the vertical extension of one side of the pin portion 210 of the coupling pin 200 may be installed toward the rear of the block 100.

Then, the block 100 is stacked such that the pin head 230 on the block 100 to which the coupling pin 200 is coupled is in contact with one inner surface of the pin head accommodation portion 150 of another adjacent block 100. .

In this case, as shown in FIG. 7, the insertion hole 330 of the reinforcement 300 is inserted into and fixed below the pin head portion 230 accommodated in the pin head accommodation portion 150, that is, the pin portion 210. .

On the other hand, since the pin receiving portion 130 of each block 100 maintains a constant interval, it is preferable to stack the blocks 100 to be stacked alternately so as to maintain a constant interval in the left and right directions.

When the blocks 100 are sequentially stacked in the above manner, the distance from which the blocks 100 stacked on the upper side are spaced from the front to the rear with respect to the lower blocks 100 is almost zero, so that they are always positioned on the same vertical line. Each of the stacked blocks 100 forms a retaining wall structure of a vertical wall, which is almost vertical, as shown in FIG. 6.

And, by filling the mortar or aggregate and / or the earth and sand to the opening portion 170 of each stacked block 100, the retaining wall structure itself is firmly coupled to prevent the collapse of the earth and sand. Such a retaining wall structure of the vertical wall can be used where the height is low and there is no resistance of earth pressure.

Here, the coupling direction of each block 100 and the coupling pin 200 is selected, that is, the pin head portion 230 of the coupling pin 200 on the installation reference plane of the pin head accommodation portion 150 of each block 100. By contacting the contacts in various ways, it is possible to select various installation inclination angles of the blocks 100 stacked on each other.

In this way, by reducing the associated costs due to import of the reinforcement material, as well as patent technology fees for using the block 100 to pay abroad, it is possible to reduce the cost of construction materials can be reduced.

In addition, various types of soil may be used as the backfill soil, which is not limited to the usefulness of the site-generated soil (crushed rock, rubble), thereby improving the constructability and economy.

Furthermore, when applied to areas with insufficient back length to form reinforcement materials such as cuts, perfect fastening effect can be expected with the back anchor body (earth anchor or set anchor), thereby strengthening the binding force and securing permanent stability. .

In addition, it can be constructed to minimize the cutting to make the most of the ground conditions available to prevent the occurrence of civil complaints, such as preventing environmental destruction in advance.

In the above-described embodiments, the pin head accommodation portion 150 of the block 100 and the pin head portion 230 of the coupling pin 200 are limited to have a rectangular cross-sectional shape, but the present invention is not limited thereto. It may have a cross-sectional shape of various patterns such as polygonal, circular, cross-shaped and L-shaped.

In addition, in the above-described embodiments, the installation reference surface of the pin head accommodation portion 150 coincides with the rear wall surface 130a of the pin accommodation portion 130, and the pin accommodation portion 130 and the pin head accommodation portion 150 communicate with each other. Although described as being, the installation reference surface of the pin head accommodation portion 150 does not match the rear wall surface 130a of the pin accommodation portion 130, or the pin accommodation portion 130 and the pin head accommodation portion 150 are not in communication. Of course not.

In addition, each corner portion of the block 100 in the above-described embodiments is preferably chamfered to facilitate the construction of the curved wall.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications of the present invention without departing from the spirit and scope of the invention described in the claims below. Or it may be modified.

According to the block retaining wall reinforcement structure of the present invention as described above, there are the following effects.                     

First, by including a block, a coupling pin, and a reinforcement formed with an insertion hole inserted into the coupling pin, by reducing the incidental costs due to import of the reinforcement material as well as the patent technology fee for using the block to pay abroad, It can lower the construction cost.

In addition, various types of soil may be used as the backfill soil, which is not limited to the usefulness of the site-generated soil (crushed rock, rubble), thereby improving the constructability and economy.

Furthermore, when applied to areas where the back length of the reinforcement is insufficient, such as the cut part, it is possible to expect a perfect fastening effect with the rear anchor body (earth anchor or set anchor), thereby strengthening the binding force and securing permanent stability.

In addition, it can be constructed to minimize the cutting to make the most of the ground conditions available to prevent the occurrence of civil complaints, such as preventing environmental destruction in advance.

Second, both sides of the reinforcement in the longitudinal direction are formed with a plurality of protrusions in the form of unevenness, so that the soil is filled between the protrusions and the protrusions eventually contact with the soil, so not only frictional resistance, but also passive resistance between the protrusions and the protrusions is generated The pullout resistance can be greatly improved.

Third, if the pin portion has a polygonal cross-sectional shape, and the insertion hole has a polygonal shape corresponding to the pin portion, when the pin portion is fitted into the insertion hole, the pin portion can be easily fixed without turning.

Fourth, at least one rib is formed at the edge of the reinforcing member insertion hole in the direction perpendicular to the plane of the reinforcing material, so that the pin portion is coupled to the insertion hole while the rib is fixed to the pin head accommodation portion, thereby further tightening the clamping force.

Fifth, if the reinforcing material is plastic, the plating process required in the case of steel is unnecessary, so that the cost according to the plating process can be reduced.

Claims (5)

In a block retaining wall reinforcement structure having a plurality of blocks stacked on each other, A block having at least one pin receiving portion and at least one pin head receiving portion formed to communicate with the pin receiving portion of another block adjacent to the block; A coupling pin formed of a pin part inserted into the pin receiving part and a pin head part formed at one end of the pin part and accommodated in the pin head receiving part; Including the reinforcement formed the insertion hole, The reinforcing material is formed long in the direction perpendicular to the direction in which the blocks are stacked, The insertion hole is inserted below the pin head portion accommodated in the pin head accommodation portion, The pin portion has a polygonal cross-sectional shape, Block retaining wall reinforcement structure, characterized in that the insertion hole is a polygonal shape. delete delete The method of claim 1, At least one rib is further formed at an edge of the insertion hole in a direction perpendicular to the plane of the reinforcing member, and the pin retaining wall reinforcing structure is coupled to the insertion hole while the rib is fixed to the pin head receiving portion. . delete

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