KR20130051867A - Reinforced earth retaining wall of link-bar for length control coupler - Google Patents

Abstract

PURPOSE: A length adjustment coupler of a reinforced earth retaining wall connection bar is provided adjust the length of a connection bar on the basis of the distance between the slope surface of a cutting part and a reinforced earth retaining wall. CONSTITUTION: A length adjustment coupler of a reinforced earth retaining wall connection bar comprises a body(10), a fixing ring(20), a control ring(40), a fixing nut(30), and a control nut(50). The body comprises a through-hole(13) in order to insert a soil nail(1) and a connection bar(2). The fixing ring is fixed to the soil nail which is inserted into the through-hole of a first body(11) for preventing the escape of the soil nail. The fixing ring is fixed to the connection bar which is inserted into the through-hole of a second body(12) for horizontally moving the connection bar. The fixing nut comprises a coupling hole(31) for joining to the soil nail and a female screw thread for joining to the screw tread of the first body. The control nut is fixed to one end of the second body and is rotated on the outer circumference of the control ring.

Description

Reinforced earth Retaining wall of Link-bar for Length control Coupler}

The present invention relates to a coupler for adjusting the length of the cut-to-reinforced soil retaining wall connection bar, and more specifically, by adjusting the length of the connection bar connected to the reinforcement soil retaining wall, between the reinforcement soil retaining wall in accordance with the cut surface of the concrete portion is not poured. The length of the connecting bar can be easily adjusted, and the angle of the body can be adjusted according to the inclination angle of the small nail installed on the surface, thus reducing the construction period and reducing the cost, and the tension of the reinforced soil retaining wall and the four days by the fixing nut It relates to a coupler for adjusting the length of the cut-to-reinforced soil retaining wall connecting bar that can be increased.

In general, the retaining wall refers to a structure for preventing soil from falling down in response to earth pressure, and is defined as a wall that suppresses a material on one side of a wall to maintain an elevation difference. The surrounding slopes, roads, rail slopes, buildings, and stepped walls all represent potential loads on the retaining wall. Retaining walls are mainly divided into three types: gravity type, cantilever type and reinforced earth retaining wall. A "gravity retaining wall" is a form of retaining wall without reinforcement that withstands the load of soil confined by the weight of the blocks themselves. In the case of gravity retaining walls, each block is composed of concrete or stone blocks, which increases construction costs. Gravity retaining walls rely on the weight of the structure to withstand earth pressure.

Excavation of soil behind a retaining wall does not affect the structural strength of the retaining wall. Cantilevered retaining walls typically have a structure of slabs piled in the soil and derive their bearing capacity from the resistance to rotation of the slats under the supported soil. The cantilever retaining wall has a horizontal base section buried underneath the backfill, and the backfill soil has a stem section extending vertically and permanently connected to the base to form a wall. Cantilevered retaining walls rely on the weight of the backfill at the base to prevent the wall from tipping.

The retaining wall must be able to withstand the superstructure and earth pressure, be durable, easy to secure, and easy to install. The widely used shafts have these requirements, but the earth pressure and hydraulic pressure It has been replaced by reinforced concrete retaining wall, which has high stability and durability when building critical structures due to its low resistance to heat.

In the case of the concrete retaining wall, it is the most commonly used structure at present, but there is a shortage of professional manpower in the construction market and the labor cost accordingly, the difficulty of quality control for cast-in-place concrete, structural weakness and construction cost when the retaining wall height increases. Many problems were exposed, including the rise.

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

By adjusting the length of the connecting bar connected to the reinforcement soil retaining wall, the length of the connecting bar connected to the reinforcement soil retaining wall can be easily adjusted according to the surface of the cut section where concrete is not poured. The angle of the to adjust, according to the purpose to provide a coupler for adjusting the length of the cut-to-reinforced soil retaining wall connecting bar is reduced construction time and costs accordingly.

In addition, it is another object to provide a coupler for adjusting the length of the cut-to-reinforced soil retaining wall connecting bar that can increase the tension of the reinforced soil retaining wall and the soil four days by the fixing nut.

In order to achieve the above object, the present invention has one side fixed to the small nail installed on the cut surface of the cut portion, the other side is connected to the connecting bar connecting the reinforcement soil retaining wall, the length of the connection bar according to the distance between the cut surface of the cut portion and the reinforcement soil retaining wall It relates to a coupler for adjusting the length of the cut-to-reinforced soil retaining wall connecting bar is characterized in that it is formed to be adjusted.

As described above, the length adjustment coupler of the cut-to-reinforced soil retaining wall connection bar of the present invention adjusts the length of the connection bar connected to the reinforcement soil retaining wall, so as to fit the surface of the cut-to-reinforced soil where the concrete is not poured. The length of the connecting bar can be easily adjusted, and the angle of the body is adjusted according to the inclination angle of the small nail installed on the surface, thereby reducing the construction period and reducing the cost.

In addition, the fixing nut has an effect of increasing the tension of the reinforced soil retaining wall and small four days.

1 is a front view showing a coupler for adjusting the length according to an embodiment of the present invention,
Figure 2 is a cross-sectional view showing a coupler for adjusting the length according to an embodiment of the present invention,
Figure 3 is an exploded view showing a coupler for adjusting the length according to an embodiment of the present invention,
Figure 4 is a front view showing a coupler for adjusting the length according to a second embodiment of the present invention,
Figure 5 is a cross-sectional view showing a coupler for adjusting the length according to a second embodiment of the present invention.

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

The present invention is that one side is fixed to the small nail installed on the cut surface of the cut portion, the other side is connected to the connecting bar connecting the reinforcement soil retaining wall, the length of the connection bar is adjusted according to the distance between the normal surface of the cut portion and the reinforcement soil retaining wall It features.

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

Before describing the various embodiments of the present invention in detail with reference to the accompanying drawings, it can be seen that the application is not limited to the details of the configuration and arrangement of the components described in the following detailed description or shown 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.

1 is a front view showing a length adjusting coupler according to a first embodiment of the present invention, Figure 2 is a cross-sectional view showing a length adjusting coupler according to a first embodiment of the present invention, Figure 3 is a first embodiment of the present invention Is an exploded view showing a coupler for adjusting the length according to.

As shown in Figures 1 to 3, the length adjustment coupler 60 of the cut-to-reinforced soil retaining wall connecting bar of the present invention, one side is fixed to the small nail (1) installed on the cut surface of the cut, the coupler 60 The other side is connected to the connecting bar (2) connected to the retaining soil retaining wall, the body 10 and the fixing ring 20 and the length of the connecting bar (2) is adjusted according to the distance between the normal surface of the cut portion and the reinforced soil retaining wall , The adjusting ring 40, the fixing nut 30, and the adjusting nut 50 is composed of. At this time, the small nail (1) and the connecting bar (2) is generally used in the form of rebar, the thickness and length are different from each other, but a plurality of projections (3) are formed on the outer periphery.

The body 10 is a body of the coupler 60, as shown in Figures 1 to 3, the through-hole 13 is formed so that the small nail 1 and the connection bar 2 is inserted into each side The through hole 13 is formed inside the body 10 and is formed through both sides of the body 10.

Here, the body 10, as shown in Figures 1 to 3, the first body 11 is formed to be inclined so that the small nail (1) is inserted, bent at a predetermined angle to the first body 11 connecting bar ( 2) is composed of a second body 12 formed integrally with the first body 11 to be inserted horizontally. In this case, the through holes 13 are formed to penetrate to both sides in the first body 11 and the second body 12, respectively.

In addition, a thread is formed on the outer periphery of the end of the first body 11 so that the fixing nut 30 is screwed.

In addition, the body circumference of the first body 11 and the second body 12 may be different or the same in size depending on the thickness of the small nail 1 and the connection bar (2) inserted into the through hole (13). have.

On the other hand, the first body 11 and the second body 12 are interconnected by a hinge device 14, the first body 11 is adjusted to a predetermined inclination angle in accordance with the angle of the inclined small nail (1) do. At this time, the hinge device is further formed with a nut member (not shown) such as a butterfly nut at the end of the hinge shaft connecting the first body 11 and the second body 12, the angle of the first body 11 After adjustment, the angle of the first body 11 is fixed by the nut member.

2 and 3, the fixing ring 20 is fixedly coupled to the small nail 1 inserted into the through hole 13 of the first body 11 so that the small nail 1 is formed. 1 serves to prevent separation from the through hole 13 of the body (11).

Here, the fixing ring 20, as shown in Figure 3, the central portion is cut horizontally to be divided so as to be coupled to one end of the small nail (1), the fixed ring divided into a plurality of outer periphery of the small nail (1) 20 is in contact with the inner periphery of the through hole 13 of the first body 11 in a state in which it is connected as one is not separated.

And, as shown in Figure 2, the inner ring of the fixing ring 20, the engaging groove 21 is formed long in the circumferential direction so as to be caught in the projection (3) of the reinforcing bar made of a small nail (1), the fixing ring 20 By engaging the engaging groove 21 of the protrusion (3) of the reinforcing bar, the fixing ring 20 is located in the correct position without moving to one side of the combined nail (1).

As shown in Figures 2 and 3, the adjustment ring 40 is fixedly coupled to the connection bar (2) inserted into the through hole 13 of the second body 12 is connected by the adjustment nut (50) It serves to move the bar 2 left and right.

Here, the adjustment ring 40 is divided into a horizontal portion is cut in the horizontal portion so as to be coupled to one end of the connecting bar 2, as shown in Figure 3, the control ring divided into a plurality of outer periphery of the connecting bar (2) 40 is in contact with the inner periphery of the through hole 13 of the second body 12 in a state in which it is connected as one is not separated.

And, as shown in Figure 2, the inner ring of the adjustment ring 40, the engaging groove 41 is formed long in the circumferential direction so as to be caught in the projection (3) of the reinforcement bar consisting of a connecting bar (2), the adjustment ring 40 By engaging the locking groove (41) of the protrusion (3) of the reinforcing bar, the connecting bar (2) to which the adjustment ring 40 is coupled is moved to the left and right.

In addition, the outer periphery of the adjustment ring 40, as shown in Figures 2 and 3, the thread is formed to be screwed with the adjusting nut 50.

As shown in FIGS. 1 to 3, the fixing nut 30 has a coupling hole 31 formed in a central portion thereof so as to be coupled to the small nail 1, and the first fixing nut 30 is formed at an inner circumference of the fixing nut 30. 1 The female thread is formed so that the nut is coupled to the thread of the body (11).

Here, the fixing nut 30 is, as shown in Figure 3, before the fixing ring 20 is fixed to the small nail (1) the small nail (1) is coupled to the coupling hole 31, after the fixing ring 20 It is fixed to these small nails 1, respectively.

2, the fixing ring 20 fixed to the small nail 1 is supported inside the fixing nut 30, so that the small nail 1 is formed at the through hole 13 of the first body 11. This is because it prevents the departure.

In addition, the fixing nail 30 is separated from the thread of the first body 11 so that the nail nail 1 is separated.

As shown in FIGS. 1 to 3, the adjusting nut 50 is screwed to the thread of the adjusting ring 40, and one side of the adjusting nut 50 is supported at one end of the second body 12. The adjusting nut 50 is rotated at the outer circumference of the adjusting ring 40.

In this case, when the adjustment nut 50 is rotated, the screwed adjustment ring 40 is not rotated, but only left and right sides are moved because the adjustment ring 40 is fixed to the connection bar 2 to adjust it. It does not rotate the same as the nut 50 is to move along the thread of the adjustment nut (50).

Then, the adjustment ring 40 is moved by the rotation of the adjustment nut 50, the connection bar 2 is also moved in the same way as the adjustment ring 40, the connection bar 2 is a through hole 13 It is length controlled within.

That is, once again, as shown in FIG. 1, when the adjusting nut 50 is rotated in both directions, the adjusting ring 40 is moved left and right along the thread of the adjusting nut 50, and then the adjusting ring 40 is moved. The fixed connection bar 2 is also moved to the left and right in the same manner as the adjustment ring 40, and the horizontal left and right lengths (the coupler 60 from the reinforced soil retaining wall) are as long as the connection bar 2 is inserted into the through hole 13. Length), hereinafter referred to as the length of the connecting bar (2) is to be adjusted.

Thus, by adjusting the length of the connecting bar (2), the connecting bar (2) formed a plurality of regular size cut in the field between the normal surface of the uncut cut portion and the reinforcement earth retaining wall and the connecting bar (2) of various sizes There is no need to provide a construction process and various costs are reduced.

4 is a front view showing a length adjusting coupler according to a second embodiment of the present invention, Figure 5 is a cross-sectional view showing a length adjusting coupler according to a second embodiment of the present invention.

4 to 5, the length adjustment coupler 60 of the cut-to-reinforced soil retaining wall connecting bar of the present invention, one side is fixed to the small nail (1) installed on the cut surface of the cut, the coupler 60 The other side is connected to the connecting bar (2) connected to the retaining soil retaining wall, the body 10 and the fixing ring 20 and the length of the connecting bar (2) is adjusted according to the distance between the normal surface of the cut portion and the reinforced soil retaining wall , The adjusting nut 50. At this time, the small nail (1) and the connecting bar (2) is generally used in the form of rebar, the thickness and length are different from each other, but a plurality of projections (3) are formed on the outer periphery.

The body 10 is a body of the coupler 60, as shown in Figures 4 to 5, the through-hole 13 is formed so that the small nail 1 and the connection bar 2 is inserted into each side The through hole 13 is formed inside the body 10 and is formed through both sides of the body 10.

Here, the body 10, as shown in Figures 4 to 5, the first body 11 is formed to be inclined so that the small nail (1) is inserted, bent at a predetermined angle to the first body 11 connecting bar ( 2) is composed of a second body 12 formed integrally with the first body 11 to be inserted horizontally. In this case, the through holes 13 are formed to penetrate to both sides in the first body 11 and the second body 12, respectively.

In addition, a female thread is formed in the inner circumference of the first body 11, that is, the through hole 13 so that the fixing ring 20 is screwed.

In addition, the body circumference of the first body 11 and the second body 12 may be different or the same in size depending on the thickness of the small nail 1 and the connection bar (2) inserted into the through hole (13). have.

Meanwhile, as shown in FIG. 4, the first body 11 and the second body 12 are interconnected by the hinge device 14 so that the first body 11 is inclined at an angle of the inclined small nail 1. It is adjusted to a predetermined inclination angle. At this time, the hinge device is further formed with a nut member (not shown) such as a butterfly nut at the end of the hinge shaft connecting the first body 11 and the second body 12, the angle of the first body 11 After adjustment, the angle of the first body 11 is fixed by the nut member.

As shown in FIGS. 4 to 5, the fixing ring 20 is coupled to the outer circumference of the small nail 1 inserted into the through hole 13 of the first body 11 and the small nail 1. It serves to prevent the departure from the through hole 13 of the first body (11).

Here, the fixing ring 20, as shown in Figures 4 to 5, the central portion is divided into a horizontal cut so as to be coupled to one end of the small nail (1), divided into a plurality of the outer periphery of the small nail (1) The fixing ring 20 is in contact with the inner periphery of the through hole 13 of the first body 11 in a state in which one is connected and is not separated.

And, as shown in Figure 5, the inner ring of the fixing ring 20, the engaging groove 21 is formed long in the circumferential direction so as to be caught in the projection (3) of the reinforcing bar made of a small nail (1), the fixing ring 20 By engaging the engaging groove 21 of the protrusion (3) of the reinforcing bar, the fixing ring 20 is located in the correct position without moving to one side of the combined nail (1).

In addition, a male screw thread is formed on the outer circumference of the fixing ring 20 so as to be screwed into the female screw thread of the through hole 13 of the first body 11, as shown in FIG. 5.

As shown in Figures 4 to 5, the adjustment nut 50 is supported by the end of the body 10 in the state of being screwed to the outer periphery of the connecting bar (2), so that the connecting bar (2) The connecting bar 2 serves to move left and right in the through hole 13 while preventing the separation from one side of the through hole 13 of the body 10.

That is, when the adjustment nut 50 is rotated while being supported at the end of the second body 12, the connecting bar 2 is moved to the other side while the length of the screwed connection bar 2 is pulled to one side to adjust the length. Can be supported by the second body 12 to prevent it.

The adjustment nut 50 may be used as various types of nut members such as butterfly nuts.

10 body 11: first body
12: second body 13: through hole
14: hinge device 20: retaining ring
21,41: Locking groove 30: Fixing nut
31: coupling hole 40: adjustment ring
50: adjusting nut 60: coupler

Claims (5)

One side is fixed to the small nail (1) installed on the cut surface of the cut portion, the other side is connected to the connecting bar (2) for connecting the retaining soil retaining wall, the connection bar (2) according to the distance between the cut surface of the cut portion and the reinforced soil retaining wall Coupler for adjusting the length of the cut-to-reinforced soil retaining wall connecting bar is characterized in that the length is adjusted.
The method of claim 1, wherein the coupler 60,
The through-hole 13 is formed through the inside so that the small nail 1 and the connecting bar 2 are inserted therein, and the connecting bar 2 is bent to be connected to the angle at which the small nail 1 is installed. A body 10 formed with a screw thread at an end portion at which the small nail 1 is inserted;
A fixing ring 20 fixedly coupled to the small nail 1 inserted into the through hole 13 of the body 10 and horizontally cut and divided into a central portion so as to be coupled to the small nail 1;
Is fixedly coupled to the connecting bar (2) inserted into the through hole 13 of the body 10, a thread is formed on the outer periphery so that the connecting bar (2) is adjusted in length in the through hole (13), A control ring 40 in which the center portion is horizontally cut and divided so as to be coupled to the connection bar 2;
The nail nail 1 is screwed to the thread formed at the end of the body 10, and the fixing ring 20 fixed to the nail nail 1 is supported therein so that the nail nail 1 is a through hole 13 of the body 10. Fixing nut 30 to prevent the departure from;
One side is screwed to the thread of the adjustment ring 40 is supported on one end of the body 10, is rotated at the outer periphery of the adjustment ring 40, the adjustment ring 40 is moved to the left, right, the An adjustment nut 50 in which the connection bar 2 is also moved in the same manner as the adjustment ring 40 and the connection bar 2 is adjusted in the through-hole 13;
Coupler for adjusting the length of the cut-to-reinforced soil retaining wall connecting bar comprising a.
The method of claim 2,
On the inner circumference of the fixing ring 20 and the adjustment ring 40, locking grooves 21 and 41 are formed to be caught and fixed to the protrusions 3 formed on the outer circumference of the small nail 1 and the connection bar 2, respectively. Coupler for adjusting the length of the cut-to-reinforced soil retaining wall connecting bar.
The method of claim 1, wherein the coupler 60,
A through-hole 13 is formed through the inside so that the small nail 1 and the connecting bar 2 are inserted therein, and the body is bent to connect the connecting bar 2 according to the angle at which the small nail 1 is installed. 10;
It is provided between the through hole 13 and the small nail (1) is fixed to the small nail (1) to the through hole 13, the center portion is cut horizontally so as to be coupled to the small nail (1) The inner ring has a fixing ring 20 in which a plurality of catching grooves 21 are formed so that the protrusion 3 formed on the outer circumference of the small nail 1 is fixed to the small nail 1;
By being supported at the end of the body 10 in the state of being screwed to the outer periphery of the connecting bar 2, the connecting bar 2 is prevented from being separated to one side from the through hole 13 of the body 10 While the connecting bar (2) and the adjusting nut 50 is adjusted in the length of the through hole (13);
Coupler for adjusting the length of the cut-to-reinforced soil retaining wall connecting bar comprising a.
The method of claim 2 or 4, wherein the body 10,
A second body 12 having a through hole 13 formed so that the connection bar 2 is inserted horizontally;
A first body 11 having a through hole 13 formed therein so as to be inserted into the lower end of the first body 11 at an inclined angle and having the inclined small nail 1;
A hinge device (14) connected between the first body (11) and the second body (12) so that the inclination angle is adjusted according to the angle of the inclined small nail (1);
Coupler for adjusting the length of the cut-to-reinforced soil retaining wall connecting bar comprising a.

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