KR20120128955A - Aseismatic reinforcement block a nd the construction method therof - Google Patents

Abstract

PURPOSE: An aseismatic reinforced retaining wall block and a construction method thereof are provide to prevent the damage of each insertion groove. CONSTITUTION: An aseismatic reinforced retaining wall block comprises a front wall portion(10), sidewall portions(20, 20'), a rear wall portion(30), a fitting hole(40), a joining groove, a connection pin(61), and an elastic spring. The front wall portion comprises a plurality of grooves(11) in vertical portions. The fitting holes are arranged symmetrically. The joining groove is formed along a cross direction. The connection pin is inserted to the fitting hole of a lower block. The elastic spring is fixed by a fixing unit.

Description

Reinforcement earth retaining wall block for earthquake resistance and construction method {Aseismatic reinforcement block a nd the construction method therof}

The present invention relates to a seismic retaining wall block and a construction method thereof, and more particularly, to diagonally arrange a space between a front row connecting pin fitting hole and a rear row connecting pin fitting hole to thicken the flesh between the fitting hole and the fitting hole, such as an earthquake. It relates to a seismic reinforcement earth retaining wall block and its construction method designed not to be damaged by external impact, and to withstand external impacts such as earthquakes by an elastic spring mounted to a connecting pin.

Generally, reinforcement soil retaining wall refers to a wall structure that resists soil pressure and prevents soil from falling down. It is used to build reinforcement soil in low ground and prevent reinforcement soil from falling down and to build retaining wall using concrete retaining wall or retaining wall block. Is common.

However, since the concrete retaining wall is a wet method, it is difficult to shorten the construction period and there is a problem such as excessive labor cost due to high labor costs.

As an alternative to solve this problem, the prefabricated reinforcement soil retaining wall using retaining wall block has increased due to the shortening of the construction period, construction cost reduction, free shape of the front wall.

However, in the conventional reinforcement retaining wall, the gap between the front row fitting hole and the rear row fitting hole of the connecting pin connecting the upper and lower reinforcement retaining wall blocks is small, so that the thin flesh between the fitting hole and the fitting hole may be damaged in an external impact such as an earthquake, The pins give a lot of impact on the fitting hole, so that the vicinity of the fitting hole is damaged, so that the retaining wall retaining wall block itself is easily damaged.

In addition, after receiving an external impact such as an earthquake, the reinforcement soil retaining wall block was not restored to its original position at the time of construction, so that the laminated state was poor, which may cause the reinforced soil retaining wall to collapse.

As developed to solve the problems caused by the conventional block-type reinforced soil retaining wall described above, Utility Model Registration No. 0425520, "connection structure for the block-type reinforced soil retaining wall" has been published in the Utility Model Registration.

Utility model registration No. 0425520 "connected structure for retaining wall retaining wall" is sequentially stacked on the surface of the retaining wall (A) to prevent the soil (Aa) inside the retaining wall collapse, as shown in Figure 1, Fixing groove (1) is formed in the width direction, the reinforcement soil block (3) is formed in the upper surface is formed in the reinforcement soil block (3), the front end portion is embedded in the soil (Aa) inside the retaining wall Between the reinforcement 4 inserted between the reinforcement block and the reinforcement 4 inserted between the reinforcement block 3 and the lower end is fitted into the fitting groove 2 formed in the lower reinforcement earth block 3 and It comprises a connecting means (5) is fitted into the fixing groove (1) formed in the upper reinforcement earth block (3), the connecting means (5) is formed inside the female threaded portion (6), the lower end of the incision groove (6 ') is fixed to the fixed tube (6 ") formed in the longitudinal direction, and the fixed tube (6") is screwed A male thread portion 7 is formed on the outer circumferential surface of the lock, and a fastening bolt 7 "having a tool engagement groove 7 'is formed on the upper surface of the lock to form the block 3 as shown in FIGS. 2 and 3. After that is to fill the earth and sand, and after filling the soil reinforcement (4) is installed on the upper surface, the reinforcement (4) if the front end is installed to be inserted between the reinforcement soil block (3), the reinforcement ( The through hole 8 formed in 4) is fitted to the fixing tube 6 "of the connecting means 5, so that the reinforcement soil block 3 and the reinforcing material 4 are combined.

The utility model registration No. 0425520 of the "block type reinforced retaining wall connection structure" is a fixed groove (6) is inserted into the fitting groove (2) of the reinforcement earth block (3) without any gap, the insertion groove formed in the front row ( 2) and the fitting grooves (2) formed in the rear row are formed in parallel in the front and rear, so that the distance between the front and rear heat insertion grooves (2) has a short structure so that a strong impact from an earthquake, the fitting groove (2) and the fitting groove There was a problem that the thin skin of the reinforcement soil block 3 between (2) is broken and the reinforcement soil block 3 itself is broken and the retaining wall itself may collapse.

In addition, the utility model registration No. 0425520 is laminated when the fixing pipe 6 "is inserted into the fitting groove 2 of the reinforcement soil block 3 without any play so as not to absorb the lateral force of the earthquake in the fitting groove 2, so that the earthquake is stacked. There was a fear that the whole retaining wall block could collapse at once.

In addition, after receiving an external impact such as an earthquake, the reinforcement soil retaining wall block was not restored to its original position at the time of construction, there was a problem in that the stacking state is poor.

An object of the present invention is to form a front row fitting groove and a rear row fitting groove formed diagonally on the upper surface of the retaining wall block by thickening the flesh between the front row fitting groove and the rear row fitting groove to fit the impact grooves such as earthquakes and the like. The purpose is to avoid the risk of breakage between the fitting grooves.

Another object of the present invention is to connect the lower block and the upper block by inserting the connecting pin into the fitting groove formed in the block. The purpose of this is to prevent the reinforcement soil retaining wall from being damaged by absorbing the lateral force of the earthquake by flowing the elastic pin on the body of the connecting pin so that the body of the connecting pin inserted into the fitting groove flows by the amount of transverse elasticity of the elastic spring.

Another object of the present invention is to prevent the retaining wall retaining wall from being damaged by preventing a bad state of the retaining wall block because the retaining wall block is returned to its original position by the elastic spring of the connecting pin after an external impact such as an earthquake. have.

The present invention, the earthquake-resistant reinforcement retaining wall block for achieving the above object includes a front wall portion 10 having a front center portion protruded forward and a plurality of grooves 11 formed up and down on the entire front surface; Side walls (20, 20 ') which form a through space portion (21) which extends rearward to both rear ends of the front wall portion (10) and becomes rearward; A rear wall portion 30 formed by rear ends of the side wall portions 20 and 20 'extending from side to side; A fitting hole 40 formed in the upper surface of the front wall part 10 in a downward direction and disposed diagonally to each other in the left and right of the front row and the left and right of the rear row; A coupling groove 50 formed on the lower surface of the front wall portion 10 to the left and right; A connecting pin 61 for coupling a reinforcing soil retaining wall block into which a lower part is inserted into the fitting hole 40 of the lower block and an upper end is inserted into the coupling groove 50 of the upper block and stacked up and down; It is characterized by consisting of an elastic spring 62 is mounted to the body (61a) of the connection pin 61 is fixed by the fixing means (63).

According to the present invention, the front row fitting grooves and the rear row fitting grooves formed on the upper surface of the retaining wall block are formed diagonally to thicken the flesh between the front row fitting grooves and the rear row fitting grooves so that the fitting grooves and the fitting grooves are impacted by an earthquake or the like. There is an effect that there is no fear of damage in between.

The present invention is to connect the lower block and the upper block by inserting the connecting pin into the fitting groove formed in the block. The body of the connecting pin inserted into the fitting groove by mounting the elastic spring on the body of the connecting pin flows by the amount of lateral elasticity of the elastic spring to absorb the lateral force of the earthquake, thereby preventing the reinforced soil retaining wall from being damaged.

The present invention has an effect of preventing the retaining wall retaining wall from being damaged by preventing the retaining wall block from being in a bad state because the retaining wall block is returned to its original position by the elastic spring of the connecting pin after an external impact such as an earthquake.

1 is an exploded perspective view showing a connection structure of a conventional reinforced earth retaining wall block;
Figure 2 is a perspective view showing a state installed on the retaining wall block conventional retaining soil retaining wall,
Figure 3 is a cross-sectional view showing a state installed on the retaining wall block conventional retaining soil block,
Figure 4a is a perspective view of the planar state of the earthquake-resistant reinforcement retaining wall block of the present invention,
Figure 4b is a perspective view of the bottom state of the earthquake-resistant reinforced retaining wall block of the present invention,
5ab is a perspective view of a connecting pin according to the present invention,
6 is an exploded perspective view of the earthquake-resistant reinforcement earth retaining wall block and the connecting pin according to the present invention;
7 is a perspective view showing a state in which the present invention earthquake-resistant reinforcement retaining wall block installed on the retaining wall,
8 is a cross-sectional view showing a state in which the present invention earthquake-resistant reinforcement retaining wall blocks are laminated vertically,
Figure 9 is a cross-sectional view showing a state in which the present invention earthquake-resistant reinforcement earth retaining wall blocks are laminated in a stepped manner,

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the earthquake-resistant reinforced retaining wall block and construction method thereof.

Figure 4a is a perspective view of a plane state of the earthquake-resistant reinforcement retaining wall block of the present invention, Figure 4b is a bottom view perspective view of the earthquake-resistant reinforcement earth retaining wall block of the present invention, Figure 5ab is a perspective view of a connecting pin according to the present invention, Figure 6 An exploded perspective view of the earthquake-reinforced earth retaining wall block and the connecting pin, Figure 7 is a perspective view showing a state in which the earthquake-resistant reinforcement earth retaining wall block of the present invention is installed on the retaining wall, Figure 8 shows a state in which the earthquake-resistant reinforcement earth retaining wall block is installed vertically stacked 9 is a cross-sectional view showing a state in which the earthquake-resistant reinforcement retaining wall block of the present invention is laminated in a stepwise manner, wherein the earthquake-resistant reinforcement earth retaining wall block of the present invention protrudes forward in front and has a plurality of grooves 11 up and down over the entire front surface. A front wall portion (10) formed; Side walls (20, 20 ') which form a through space portion (21) which extends rearward to both rear ends of the front wall portion (10) and becomes rearward; A rear wall portion 30 formed by rear ends of the side wall portions 20 and 20 'extending from side to side; A fitting hole 40 formed in the upper surface of the front wall part 10 in a downward direction and disposed diagonally to each other in the left and right of the front row and the left and right of the rear row; A coupling groove 50 formed on the lower surface of the front wall portion 10 to the left and right; A connecting pin 61 for coupling a reinforcing soil retaining wall block into which a lower part is inserted into the fitting hole 40 of the lower block and an upper end is inserted into the coupling groove 50 of the upper block and stacked up and down; It is composed of an elastic spring 62 is mounted to the body (61a) of the connecting pin 61 is fixed by the fixing means (63).

The fitting hole 40 is formed on the left and right of the front row and the rear row, the fitting hole 40 of the front row and the fitting hole 40 of the rear row are disposed diagonally to each other, the fitting hole 40 and the fitting hole 40 It is preferable to form so that the flesh between) becomes thick.

The connecting pin 61 has a head 61b formed at an upper portion thereof, and a body 61a having a smaller diameter than the head portion 61b is formed integrally at a lower portion thereof. Same as the configuration.

But, Unlike the conventionally known connection pins, the connecting pin 61 of the present invention is equipped with an elastic spring 62 on the body 61a of the connecting pin 61, and the elastic spring 62 is a fixing means 63. It is fixed to the lower portion of the body (61a) by being configured to absorb transverse external shocks, such as earthquakes.

The diameter of the head 61b of the connecting pin 61 is larger than the diameter of the fitting hole 40 so as to be caught by the fitting hole 40 when the connecting pin 61 is inserted into the fitting hole 40. The lower body 61a, which is smaller than the diameter of the head 61b, is integrally formed, and an elastic spring 62 is fitted to the body 61a, and the elastic spring 62 is a fixing means 63. Is fixed by

Since the elastic spring 62 mounted on the body 61a and fixed by the fixing means 63 is fixed apart from the body 61a by a predetermined distance, the connecting pin 61 on which the elastic spring 62 is mounted is fixed. ) Is inserted into the fitting hole 40, the head 61b is caught by the fitting hole 40, the body 61a is located in the center of the fitting hole 40, the outer circumference of the fitting hole 40 The elastic spring 62 is located.

The elastic spring 62 is mounted and fixed away from the body 61a of the connecting pin 61 so as to have an elastic amount in the lateral direction.

In addition, in order for the elastic spring 62 to be mounted away from the body 61a by a predetermined distance, the elastic spring 62 should be fixed to the lower portion of the body 61a by fixing means 63.

The fixing means 63 is formed by shrinking the lower portion of the body 61a of the connecting pin 61 by inserting the reduced end portion 62 ′ with the lower portion of the elastic spring 62 reduced in the reduced portion 61c. It can also be fixed.

In addition, the fixing means 63 may be fixed by inserting one end of the elastic spring 62 in the through hole 64 formed in the lower portion of the body 61a of the connecting pin 61.

In this case, when an external impact such as an earthquake is applied, the body 61a of the connecting pin 61 flows by a predetermined interval (lateral elasticity) between the body 61a and the elastic spring 62. While absorbing external shocks such as earthquakes.

In addition, after the earthquake occurs, the body 61a of the connecting pin 61 is automatically positioned in the center of the fitting hole 40 by the elastic spring 62 that is fixed by the fixing means so that the retaining soil retaining wall The position of the block is returned to the original position at the time of construction to prevent the stacking state from being bad.

In addition, the construction method of the earthquake-resistant reinforcement retaining wall block for the present invention is provided with a hole 40 is formed diagonally to each other in the front row left and right and rear row left and right while forming a hole downward from the upper surface of the front wall portion (10). Reinforcement earth retaining wall block manufacturing process (S1 step) for producing a reinforced soil retaining wall block; Construction site floor cleaning process of digging and cleaning the floor of the construction site to a certain depth (S2 step); A bottom retaining wall block masonry step (S3 step) for laterally reinforcing the bottom reinforced wall retaining wall block on the floor of the construction site arranged above; An elastic spring 62 is inserted into the fitting hole 40 of the lower reinforcement earth retaining wall block B1 by a fixing means 63 to insert the connecting pin 61 mounted therein, and the head portion of the connecting pin 61 is inserted into the fitting hole 40. A retaining wall block laminating step (step S4) of stacking a predetermined number of upper retaining wall blocks B2 on top of the lower retaining wall block B1 to insert 61b) into the coupling groove 50 of the upper retaining wall block B2; A back filling process of filling and compacting soil on the rear surface of the predetermined number of retaining wall blocks (step S5); The retaining wall block stacking step (step S4) and the backfilling step (step S5) are repeated, and the retaining wall blocks are stacked up to the designed retaining wall height, and a repeating step (step S6) is repeated.

After the retaining wall block stacking step (S4 step) of stacking the predetermined number of retaining wall blocks and the back filling step (S5 step) of filling and compacting soil on the rear side of the predetermined number of retaining wall blocks, an upper retaining wall block is placed on the retaining wall block. Before stacking it may be constructed by inserting a civil reinforcement (S) to prevent earthquake and settlement between the retaining wall block and the upper retaining wall block.

In addition, in the retaining wall block stacking process (step S4), the body 61a of the connecting pin 61 with the elastic spring 62 is inserted into the fitting hole 40 in the front row of the lower retaining wall block, and the connecting pin 61 is inserted. The head 61b of the upper retaining wall block may be inserted into the coupling groove 50 so that the front end of the upper and lower retaining wall blocks may be stacked vertically, or the rear row of the lower retaining wall blocks may be stacked in the retaining wall block stacking process (step S4). Insert the body 61a of the connecting pin 61 with the elastic spring 62 into the fitting hole 40 and insert the head 61b of the connecting pin 61 into the coupling groove 50 of the upper retaining wall block. The upper and lower retaining wall blocks may be stacked in a stepwise manner.

Next, a process of constructing the retaining wall by using the method of constructing the earthquake-resistant reinforcement retaining wall block for earthquake resistance according to the present invention will be described in more detail.

Reinforcement earth retaining wall block manufacturing process for forming a reinforcement earth retaining wall block having a hole formed diagonally in the front row left and right and rear row left and right in the front row of the front wall portion 10 and diagonally arranged in each other (S1) In the step), in order to prevent breakage between the front row fitting hole 40 and the rear row fitting hole 40 due to thin flesh between the front row and the rear row fitting holes 40 during an external impact such as an earthquake, the fitting hole 40 Produces the reinforced earth retaining wall block so that the flesh between the front row fitting holes 40 and the rear row fitting holes 40 is arranged diagonally on each other in the front row left and right and rear rows left and right.

When constructing the retaining wall using the seismic reinforced earth retaining wall block for earthquake resistance of the present invention, first, the construction site for the retaining wall (the construction site of the retaining wall is required to install the retaining wall, such as a lowland, an incision, etc.) to a predetermined depth and arranges the floor flatly. (Step S2).

At the bottom of the construction site summarized above, the bottom of the reinforced soil retaining wall block is laid in the transverse direction (step S3).

Subsequently, as shown in FIGS. 7, 8, and 9, the connecting pin 61 in which the elastic spring 62 is mounted on the body 61a is inserted into the fitting hole 40 of the lower retaining wall block B1. A predetermined number of upper retaining wall blocks B2 are stacked on the lowest retaining wall block B1 so that the head 61b of the connecting pin 61 is inserted into the coupling groove 50 of the upper retaining wall block B2 (step S4). , And fills the soil on the rear surface side of the predetermined number of retaining wall blocks (S5 step).

Here, in the retaining wall block stacking process (step S4), the body 61a of the connecting pin 61 in which the elastic spring 62 is mounted is inserted into the fitting hole 40 in the front row of the lower retaining wall block. When the head 61b is inserted into the coupling groove 50 of the upper retaining wall block, as shown in FIGS. 7 and 8, the front ends of the upper and lower retaining wall blocks are stacked vertically, and the retaining wall block stacking process (step S4). Insert the body 61a of the connecting pin 61 with the elastic spring 62 into the fitting hole 40 in the rear row of the lower retaining wall block to insert the head 61b of the connecting pin 61 into the upper retaining wall block. When inserted into the coupling groove 50, the upper and lower retaining wall blocks are stacked stepwise as shown in FIG.

Subsequently, the reinforced wall retaining wall construction is completed by the retaining wall block stacking and backfilling repeating process (step S6), which repeats the retaining wall block stacking process (step S4) and the backfilling process (step S5) to the designed retaining wall height (step S6).

Here, after the retaining wall block stacking step (step S4) and the backfilling step (step S5), before stacking the upper retaining wall block on the retaining wall block again, for civil engineering between the retaining wall block and the upper retaining wall block for seismic prevention and settlement. Can be installed by inserting the reinforcement (S).

While the present invention has been described as a preferred embodiment, the present invention is not limited thereto, and various modifications can be made without departing from the gist of the invention.

10: front wall portion 11: the groove
20, 20 ': side wall portion 21: through space portion
30: rear wall portion 40: fitting hole
50: coupling groove 61: connecting pin
61a: body 61b: head
62: elastic spring

Claims (6)

A front wall part 10 having a front center portion protruding forward and having a plurality of grooves 11 formed up and down on the entire front surface thereof; Side walls (20, 20 ') which form a through space portion (21) which extends rearward to both rear ends of the front wall portion (10) and becomes rearward; A rear wall portion 30 formed by rear ends of the side wall portions 20 and 20 'extending from side to side; A fitting hole 40 formed in the upper surface of the front wall part 10 in a downward direction and disposed diagonally to each other in the left and right of the front row and the left and right of the rear row; A coupling groove 50 formed on the lower surface of the front wall portion 10 to the left and right; A connecting pin 61 for coupling a reinforcing soil retaining wall block into which a lower part is inserted into the fitting hole 40 of the lower block and an upper end is inserted into the coupling groove 50 of the upper block and stacked up and down; Earthquake-reinforced earth retaining wall block, characterized in that consisting of an elastic spring 62 is mounted to the body (61a) of the connecting pin (61) is fixed by a fixing means (63). According to claim 1, The elastic spring 62 is mounted away from the body 61a of the connecting pin 61 by a predetermined distance so as to have a transverse amount of elasticity, the diameter of the elastic spring 62 is the connecting pin Reinforcement earth retaining wall block for earthquake resistance, characterized in that less than the diameter of the head (61b) of the 61 and larger than the diameter of the body (61a). According to claim 1 or 2, wherein the fixing means 63 is a reduction end (62 ') of the elastic spring 62 to the reduction portion (61c) formed on the lower portion of the body (61a) of the connecting pin (61). Reinforcement earth retaining wall block for earthquake, characterized in that the fitting is fixed. According to claim 1 or 2, wherein the fixing means 63, one end of the elastic spring 62 is fitted into the through-hole 64 formed in the lower portion of the body (61a) of the connecting pin 61 is fixed Reinforcement earth retaining wall block for earthquake. Reinforcement earth retaining wall block manufacturing process for forming a reinforcement earth retaining wall block having a hole formed diagonally in the front row left and right and rear row left and right in the front row of the front wall portion 10 and diagonally arranged in each other (S1) Step); A construction site floor cleaning process (S2 step) for digging and cleaning the floor of the construction site; A bottom retaining wall block masonry step (S3 step) for laterally reinforcing the bottom reinforced wall retaining wall block on the floor of the construction site arranged above; An elastic spring 62 is inserted into the fitting hole 40 of the lower reinforcement earth retaining wall block B1 by a fixing means 63 to insert the connecting pin 61 mounted therein, and the head portion of the connecting pin 61 is inserted into the fitting hole 40. A retaining wall block laminating step (step S4) of stacking a predetermined number of upper retaining wall blocks B2 on top of the lower retaining wall block B1 to insert 61b) into the coupling groove 50 of the upper retaining wall block B2; A backfilling process (step S5) of filling and compacting soil on the rear side of the predetermined number of upper retaining wall blocks (B2); Construction method of the earthquake-proof reinforced earth retaining wall block consisting of the retaining wall block stacking and backfilling repeating process (step S6) to repeat the retaining wall block stacking process (step S4) and backfilling process (step S5) to the designed retaining wall height. The retaining wall block and the upper retaining wall according to claim 5, wherein after the back filling process (step S5) of filling and compacting soil on the rear surface side of the predetermined number of retaining wall blocks (B2) before stacking the upper retaining wall blocks on the retaining wall blocks. Construction method of earthquake-resistant reinforcement retaining wall block, characterized in that the civil reinforcement (S) is inserted between the blocks.

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