KR102327198B1 - Pedestal apparatus for construction of earth anchor - Google Patents

Abstract

The present invention relates to a pedestal fixing device for earth anchor construction, wherein one end of an earth anchor supporting a retaining wall is fixed, and a pedestal member disposed between the wader member and the retaining wall is coupled to the pedestal. By easily adjusting the position of the member, it can be easily positioned at the correct construction position, and by being separated and removed after fixing the pedestal member to the retaining wall, it increases the convenience when constructing the earth anchor and further shortens the construction work time and can further reduce the construction cost.

Description

Base fixing device for earth anchor construction {PEDESTAL APPARATUS FOR CONSTRUCTION OF EARTH ANCHOR}

The present invention relates to a pedestal fixing device for earth anchor construction, and more particularly, to a pedestal fixing device for earth anchor construction that increases construction convenience when constructing an earth anchor supporting a retaining wall.

In general, temporary retaining facilities are temporary structures that support the ground in order to prevent the collapse of the ground when excavating the ground for constructing an underground structure.

The temporary retaining facility is constructed by the H-pillar method using general steel, the method using the anchor, the preload method that directly applies axial force to the strut supporting the excavated ground, the method of applying prestress to the wale, and the construction method using the truss-type wale do.

The retaining wall supporting the ground in the temporary retaining facility is fixedly installed by an earth anchor.

One end of the earth anchor is embedded and fixed in the perforated ground, and the other end is fixed from the outside of the retaining wall to fix the retaining wall to support the ground.

1 and 2, the earth anchor 3 is inserted into the perforation 2a formed to be inclined downwardly on the ground 2, and the one end inserted by the grout 4 injected into the perforation 2a is is fixed In addition, the other end of the earth anchor (3) penetrates the retaining wall (1) supporting the ground and is fixed from the outside of the retaining wall (1). The earth anchor 3 includes a plurality of tension lines 3a inserted into the perforations 2a of the ground 2 and a head block 3b to which the tension lines 3a are fixed from the outside of the retaining wall 1 . ) and a wale fixing body (5), wherein the wale fixing body (5) installs the head block (3b) to the retaining wall (1).

Referring to FIG. 1, the wale fixing body 5 is a wale 5a that is vertically spaced apart from the retaining wall 1 in the horizontal direction, and a beam hanger 5b that supports and supports the wale 5a, respectively. ), and both ends are connected to the two bands 5a and the bands 5a, and a pedestal 5c on which the head block 3b is mounted. And, between the wale (5a) and the retaining wall (1) by performing a groove filling to fill the gap between the wale (5a) and the retaining wall (1) is provided with a groove support (5d), respectively.

Referring to Figure 2, the wale fixing body (5) is arranged in the horizontal direction on the retaining wall (1) and the head block (3b) is mounted (5a), the wale (5a) to support and support Groove support (5d) including a beam hanger (5b), filling the gap between the wale (5a) and the retaining wall (1) by filling a groove between the wale (5a) and the retaining wall (1) is provided

That is, the earth anchor (3) installs a beam hanger (5b) to fix the other end of the tension line (3a) protruding to the outside of the retaining wall (1), installs a wale (5a) on it, and fills the groove After carrying out the construction, the pedestal 5c was mounted.

That is, in the conventional earth anchor 3 described above, the process for fixing the tension wire 3a from the outside of the retaining wall 1 is complicated, and accordingly, a large amount of work takes a lot of work time, and the steel material used There was a problem that the construction cost was high due to the large amount of construction.

Domestic Patent Registration No. 01083836 'Removable Earth Anchor' (Registered on Nov. 9, 2011)

An object of the present invention is to provide a pedestal fixing device for earth anchor construction that can reduce the amount of work and reduce construction costs by facilitating installation during the construction of the earth anchor.

The object of the present invention is a pedestal fixing device for earth anchor construction that combines a band member to which one end side of an earth anchor supporting a retaining wall is fixed, and a pedestal member disposed between the band member and the retaining wall,

an upper plate member that is seated on the upper portion of the wale member;

a holding plate member, a portion of which is caught on the pedestal member at the lower side of the pedestal member;

It is solved by providing a pedestal fixing device for earth anchor construction including a connection frame member for detachably connecting the upper plate member and the mounting plate member.

The present invention has the effect of shortening the construction work time and reducing the amount of steel and construction cost by simplifying the construction process by simply fixing the end protruding to the outside of the retaining wall through one pedestal.

The present invention can easily adjust the position of the pedestal disposed between the retaining wall and the wale so that it can be simply positioned at the correct construction position, thereby increasing the convenience in the construction of the earth anchor, shortening the construction work time, and reducing the construction cost. It has the effect of saving money.

The present invention has the effect of greatly improving the workability by stably performing the tension work of the tension wire.

1 is a schematic diagram showing an example of a conventional earth anchor
Figure 2 is a schematic diagram showing another example of a conventional earth anchor
Figure 3 is a schematic diagram showing an earth anchor according to an embodiment of the present invention
4 to 6 are views showing various embodiments of the pedestal member according to an embodiment of the present invention;
7 is a plan view showing an example of a retaining wall;
8 is a view showing an example in which the pedestal member is mounted in FIG.
9 and 10 are views showing an example of a pedestal fixing device for construction of an earth anchor according to the present invention
11 is a block diagram showing a method for constructing an earth anchor according to the present invention;
12 to 17 are schematic views showing an earth anchor construction method according to an embodiment of the present invention;

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings as follows.

Referring to Figure 3, the earth anchor to which the present invention is applied is installed in the perforation (2a) of the ground (2) supported on the retaining wall (1) to support the retaining wall (1).

The retaining wall 1 is installed on the wall surface of the excavated ground 2 to support the ground 2 so that the ground 2 does not collapse. The earth anchor is fixed by supporting the retaining wall (1) so that the retaining wall (1) can support the ground (2).

A downwardly inclined perforation (2a) is formed in the ground (2), and the anchor is inserted into the perforation (2a) and installed.

The earth anchor includes a plurality of tension wire members 10 inserted into the perforations 2a of the ground 2 . The tension wire member 10 includes a steel wire portion 11 and a covering portion 12 surrounding the steel wire portion 11 . The steel wire portion 11 is to increase the bearing force of the retaining wall (1) by pulling the retaining wall (1) toward the ground (2) by the reaction force of the tension.

The tension member 10 is inserted into the perforation 2a of the ground 2, one end of both ends is located inside the perforation 2a of the ground 2, and the other end is the retaining wall 1 ) protrude outward.

One end of the tension wire member 10 is connected to and fixed to the fixing body 20 from the inside of the perforation 2a. The tension line member 10 may be connected to the lower body 61 from one end side. That is, after the tension wire member 10 is connected through the inner body 61 , one end is fixed to the fixing body 20 .

In addition, the earth anchor according to the present invention is inserted into the perforation (2a) and maintains the distance between the tension line members (10), and a spacing member (60) for arranging a plurality of the tension line members (10) side by side. ) is preferably further included.

In addition, the earth anchor according to the present invention may further include a grout injection pipe member 70 having one end inserted into the perforation 2a and the other end protruding to the outside of the retaining wall 1 . The grout injection pipe member 70 allows the grout 71 to be injected into the perforation 2a in a tube or hose shape. The grout 71 is injected and filled through the grout injection pipe member 70 in the perforation 2a, and the filled grout 71 is hardened to form the inner body 61 and the fixing body 20. It is fixed in the perforation 2a, and the inner body 61 serves as a locking hole in the hardened grout 71 to make the one end side of the tension wire member 10 more firm in the grout 71. fasten it tightly

The other end of the tension line member 10 protrudes to the outside of the retaining wall 1 and is fixed to the head block member 30 . The tension line member 10 passes through the head block member 30 and is fixed to the head block member 30 in a tensioned state by pulling an end thereof. The head block member 30 is mounted and fixed to the band member 40 , and the band member 40 is horizontally disposed on the retaining wall 1 . The band member 40 preferably includes a first band member 41 and a second band member 42 that are spaced apart and form a gap through which the tension line member 10 passes.

As an example, the first belt tenon 41 and the second belt tenon 42 are U-shaped beams in which a support portion 40b protrudes to one side each on both end sides of the abdomen 40a, and the support portion ( 40b) is disposed to face each other and is seated and mounted on the pedestal member 50 .

The first belt tenon 41 and the second belt tenon 42 are U-shaped beams in which support portions 40b protrude from both ends of the abdomen 40a, and any of the two support portions 40b One support portion 40b is seated and mounted on the pedestal member 50, and the head block member 30 is seated and mounted on the other support portion 40b of the two support portions 40b.

The first belt tenon part 41 and the second belt tenon part 42 are spaced apart so that the support part 40b faces outward from each other and the plurality of the tension wire members 10 can pass through the pedestal. It is mounted and fixed to the band-length fixing surface 50a of the member 50 .

The head block member 30 includes an acupressure plate 31 seated on the band member 40, and a block portion 32 seated on the acupressure plate 31, through which the tension wire member 10 is penetrated and fixed. includes The acupressure plate 31 evenly distributes the load generated when the tension line member 10 fixed to the block part 32 is pulled into the spaced apart first and second belt tenon parts 41 and 42 . By dispersing it, the block part 32 can be stably supported between the spaced apart first and second band lengths 41 and 42 .

The pedestal member 50 has a wale fixing surface 50a to which the wale member 40 is fixed, is formed inclined with respect to the wale fixing surface 50a, and is fixed to the outer surface of the retaining wall 1 It has a fixed inclined surface (50b) and is fixed by being in direct contact with the outer surface of the retaining wall (1) and being welded and fixed to the outer surface of the retaining wall (1) as an example.

4 to 6 are views showing various embodiments of the pedestal member 50. Referring to FIGS. 4 to 6, the first pedestal protrusion 50c is provided on the wale fixing surface 50a of the pedestal member 50. ) is preferably projected. The first pedestal protrusion 50c is provided on the upper side of the wale fixing surface 50a in the width direction of the wale member 40 seated on the wale fixing surface 50a to secure the pedestal member 50. When the pedestal member 50 slides when the pedestal member 50 slides in the work of fixing it to the wall 1, it is caught on the wale member 40, and the wale member 40 during the work of fixing the pedestal member 50 to the retaining wall 1 ) to prevent slipping and falling. In addition, it is preferable that a second pedestal protrusion 50d protrude from the first pedestal protrusion 50c on the band-length fixing surface 50a of the pedestal member 50 . The second pedestal protrusion 50d is provided on the lower side of the wale fixing surface 50a in the width direction of the wale member 40 seated on the wale fixing surface 50a to secure the pedestal member 50. When the pedestal member 50 is moved to the upper side in the fixing to the wall 1, it is caught by the wale member 40, and the pedestal member 50 is fixed to the retaining wall 1 during the fixing operation. It prevents the band member 40 from being excessively separated from the fixing surface 50a.

The operation of fixing the pedestal member 50 to the retaining wall 1 will be described in more detail in the anchor construction method according to the present invention below.

Referring to Figure 4, the pedestal member 50, the first plate portion 51 having a wale fixing surface (50a) on the upper surface of which the wale member 40 is seated; and a second plate portion 52 which is vertically erected and fixed to the lower surface of the first plate portion 51 and has a lower surface inclined upward or downward from one side to the other. In an example, the inclined lower surface of the second plate part 52 is the fixed inclined surface 50b. The second plate portion 52 has a triangular shape, and is a right-angled triangle as an example, and an inclined surface facing the right angle is the fixed inclined surface 50b fixed to the retaining wall 1, and at the base of the right-angled triangle. As an example, the first plate part 51 is mounted on the corresponding surface.

Referring to FIG. 5 , the pedestal member 50 may further include a support plate part 53 arranged horizontally and fixed to the lower end of the second plate part 52 .

The support plate part 53 is fixed to the lower end of the second plate part 52 so as to protrude from both sides of the second plate part 52 and the retaining wall 1 of the second plate part 52 . Increases the area supported on the pole so that it can be fixed more stably. The inclined lower surface of the support plate part 53 is an example of the fixed inclined surface 50b.

In an example in which the second plate part 52 has a right-angled triangular shape, the support plate part 53 is mounted and fixed to an inclined plane facing the right angle.

In addition, referring to FIG. 6 , the pedestal member 50 is erected and fixed to the lower end of the second plate part 52, and a third plate part having a lower surface inclined upward or downward from one side to the other side ( 54) is further included. It should be noted that the inclination of the lower surface of the third plate part 54 may be the same as or different from the inclination of the lower surface of the second plate part 52 .

The third plate portion 54 is erected and fixed to the lower end of the second plate portion 52 to correct the height and inclination angle of the second plate portion 52 to facilitate mounting and fixing to the retaining wall (1). make it possible In addition, the pedestal member 50 is erected on both sides of the second plate part 52 and has a reinforcing plate part 55 fixed to the second plate part 52 and the third plate part 54, respectively. It is preferable to further include. In an example in which the second plate part 52 has a right-angled triangular shape, the third plate part 54 is mounted and fixed to an inclined plane facing the right angle.

The reinforcing plate part 55 is provided in plurality on both sides of the second plate part 52 to be spaced apart from each other to further increase the rigidity of the connection part between the second plate part 52 and the third plate part 54 . Reinforcement is desirable.

7 is an example of the retaining wall 1 constructed by the C.I.P (Cast-In-Placed Concrete Pile) method. The CIP (Cast-In-Placed Concrete Pile) method uses excavation equipment to drill the ground (2) to a certain depth and inserts and installs a cylindrical casing into the drilled vertical hole, then reinforcing bars or coarse aggregate inside the cylindrical casing , H-beam pile, etc. are inserted, and the concrete column formed by pouring concrete is continuously constructed with the outer peripheral surface in contact.

Referring to FIG. 7 , the retaining wall 1 has an outer surface that is not uniformly constructed in a straight line, and may be constructed irregularly. In order to fix the pedestal member 50 to the concrete column formed by the C.I.P (Cast-In-Placed Concrete Pile) method, the flange of the H-beam 1a is exposed from the concrete column into which the H-beam is inserted. The parts 'A', 'B', and 'C' of FIG. 7 are portions to which the pedestal member 50 is fixed, and the exposed flange mounting surface is irregularly arranged, which is arranged in a straight line in the horizontal direction. It is confirmed that the interval Sd between the member 40 and the retaining wall 1 is irregular.

When the mounting surface of the flange is irregular in the 'A' part, 'B' part, and 'C' part, it is welded and fixed to the exposed flange, and when the mounting surface of the exposed flange is irregular, the wale member 40 is set After arranging in a straight line horizontally at the installation position, the position of the pedestal member 50 is adjusted and fixed to the retaining wall 1 .

Conventionally, there is a cumbersome work to fill the groove in order to fix the wale member 40 in a straight line in the horizontal direction, but the earth anchor of the present invention fixes the wale of the pedestal member 50 as shown in FIG. 8 . The wadding member 40 is seated on the surface 50a, and the pedestal member 50 is moved so that the fixed inclined surface 50b of the pedestal member 50 is in contact with the retaining wall 1, while the wale fixing surface The wale member 40 seated on the (50a) can be supported so as to be in a straight line. That is, the earth anchor of the present invention aligns the position of the wale member 40 in a straight line and then moves the pedestal member 50 from the outside of the wale member 40 and the retaining wall 1 to move the wale The member 40 may be accurately seated and fixed on the wale fixing surface 50a of the pedestal member 50 . Therefore, in order to fill the gap between the existing wale member 40 and the retaining wall 1, a groove filling operation must be performed, but the earth anchor according to the present invention moves the triangular pedestal member 50 as described above. By adjusting the position of the wale member 40 fixed on the wale fixing surface 50a, the wale member 40 is simply placed in a straight line without filling in the groove, so that it is mounted and fixed to the pedestal member 50 it can be

On the other hand, referring to Figures 9 to 11, the earth anchor construction pedestal fixing device 80 according to the present invention, the upper plate member 81 seated on the upper portion of the wale member 40; a mounting plate member 84, a portion of which is caught on the pedestal member 50 from the lower side of the pedestal member 50; and a connecting frame member 82 for detachably connecting the upper plate member and the mounting plate member.

The pedestal fixing device 80 for earth anchor construction according to the present invention combines the wale member 40 and the pedestal member 50 seated on the wale fixing surface 50a of the pedestal member 50, In the coupled state, the pedestal member 50 is movable.

In the pedestal fixing device 80 for earth anchor construction according to the present invention, the pedestal member 50 is fixed to the outer surface of the retaining wall 1, and the band length fixing surface 50a of the pedestal member 50 is The band member 40 is disassembled in a fixed state and separated from the band member 40 and the pedestal member 50 .

In the pedestal fixing device 80 for earth anchor construction according to the present invention, the pedestal member 50 is easily moved in a state in which the wale member 40 is seated on the wale fixing surface 50a, and the By preventing the pedestal member 50 from falling, the installation work of the pedestal member 50 and the wale member 40 can be easily and stably performed.

In addition, it is preferable that the earth anchor to which the present invention is applied further includes a wale fixture 90 for removably fixing the wale member 40 to the pedestal member 50 .

The wale fixture 90 fixes the wale member 40 to the pedestal member 50, and separates the wale member 40 and the pedestal member 50 when dismantling the retaining wall 1 for reuse. make it possible

The band-length fastener 90 includes a fixing plate member 91 seated on the pedestal member 50;

a cover plate member 92, at least a portion of which is overlapped with the fixing plate member 91, and the other portion is overlapped with a lower portion of the wale member 40;

a band-length fixing bolt member 93 penetrating the fixing plate member 91 and the cover plate member 92; and

It includes a wale fixing nut member 94 fastened to the wale fixing bolt member 93 .

The fixing plate member 91 may be provided to protrude integrally from the lower surface of the cover plate member 92 . The fixing plate member 91 is separated from the cover plate to the thickness of the lower surface of the band member 40, that is, the support portion 40b of the first band member 41 and the second band member 42. It may be formed to have a different thickness depending on the.

The fixing plate member 91 is formed in various thicknesses, and it is possible to select and use the one that matches the thickness of the support portion 40b of the first belt tenon 41 and the second belt tenon 42 .

The wale fixture 90 seats the cover plate member 92 on the upper surface of the fixing plate member 91 in a state in which the fixing plate member 91 is seated on the wale fixing surface 50a, so that the cover In a state where a part of the plate member 92 covers a part of the support part 40b, the wale-length fixing bolt member 93 is attached to the cover plate member 92, the fixing plate member 91, and the pedestal member. After passing through (50), the band member (40) is fixed to the pedestal member (50) by fastening the band member fixing nut member (94) to the end of the band member fixing bolt member (93). In addition, the wale fixture 90 is separated from the pedestal member 50 by loosening the wale fixing nut member 94 from the wale fixing bolt member 93, and the wale member 40 is also the pedestal member. (50) and separable.

A plurality of the wale fasteners 90 are provided to stably fix the first wale part 41 and the second wale part 42 to the pedestal member 50, respectively, and the first wale part As an example, two are provided on the side of the supporting part (40b) of (41), and two on the side of the supporting part (40b) of the second band length (42).

The band member 40 includes a first band member 41 and a second band member 42 that are spaced apart and form an interval through which the tension line member 10 passes, and the first It is exemplified that the band length 41 and the second band length 42 are U-shaped beams in which the support portions 40b protrude from both ends of the abdomen 40a.

Although not shown, the first belt tenon 41 and the second belt tenon 42 may be H-shaped beams in which the support portions 40b on both ends of the abdomen 40a protrude to both sides of the abdomen 40a. In addition, it is revealed that it can be implemented in various beam shapes.

The upper plate member 81 is seated on the upper portions of the first and second straps 41 and 42, and the connecting frame member 82 includes the first and second straps 41 and 42. It is disposed between the second band lengths 42 to detachably connect the upper plate member 81 and the mounting plate member 84 to each other.

In addition, the pedestal member 50, the first plate portion 51 having a wale fixing surface (50a) on which the wale member 40 is seated on the upper surface; and a second plate part 52 which is vertically erected and fixed to the lower surface of the first plate part 51 and has a lower surface inclined upward or downward from one side to the other side, and the mounting plate The member 84 is disposed such that a portion thereof is caught on the lower surface of the first plate portion 51 .

The connecting frame member 82 includes an angle body 82a having an upper end fixed to a lower surface of the upper plate member 81 and a lower end detachably connected to the mounting plate member 84 .

The angle body 82a includes an L-shaped angle or a U-shaped angle, and is vertically erected so that the upper end is fixed to the lower surface of the upper plate member 81, and the lower end is detachable to the mounting plate member 84. Connecting is taken as an example.

The L-shaped angle is a vertical cross-section is an L-shaped angle, the U-shaped angle is a vertical cross-section is a U-shaped angle, an open part is formed on one side, and the opening is connected to the mounting plate member (84) By exposing the part, it increases the convenience in connection work. In addition, in the L-shaped angle or the U-shaped angle, between the first belt tenon 41 and the second belt tenon part 42, at least one surface is the vertical surface of the first belt tenon part 41 and the second belt tenon part ( 42), and at least the other side is disposed to cross between the first and second bands of the first and second bands 41 and 42. It can serve to support the gap between the two bands (42), so that the first and second bands (41) and the second band (42) can be stably coupled to the pedestal member (50).

In addition, the pedestal fixing device 80 for construction of the earth anchor according to the present invention is disposed between the first belt tenon 41 and the second belt tenon 42, and both ends are the first plate portion, respectively. a lower plate member (86) protruding outward from both sides of the (51) and fixing the lower end of the angle body (82a); It further includes plate connecting members (83, 85) connecting the lower plate member (86) and the mounting plate member (84). As an example, the lower plate member 86 is seated on the wale fixing surface 50a of the pedestal member 50, and adjusts the distance between the first band member 41 and the second band member 42. do.

Guide members 87 protruding outward from both side ends of the first plate part 51 are provided on both lower sides of the lower plate member 86 . The guide member 87 is in contact with both ends of the first plate part 51, respectively, so that the wale 40 according to the present invention is fixed to the pedestal member 50 by the pedestal fixing device 80 for the earth anchor construction. ), the pedestal member 50 moves smoothly in the same direction as the inclined wale fixing surface 50a in a state of being seated on the wale fixing surface 50a, so that the mounting and fixing position of the wale 40 is easy to adjust let it do

In addition, the guide member 87 is formed to have the same thickness as the first plate part 51 to fill the gap between the mounting plate member 84 and the lower plate member 86 to fill the mounting plate member 84. to be maintained in a horizontal state so that the wale 40 can be stably mounted and fixed.

For example, the guide member 87 is fixed to the lower surface of the lower plate member 86 by welding or the like.

The plate connecting members 83 and 85 include a plate connecting bolt 83 penetrating through the lower plate member 86 and the mounting plate member 84; and a plate connection nut 85 fastened to the plate connection bolt 83 .

The plate connecting members 83 and 85 fix the position of the lower plate member 86 by connecting the lower plate member 86 to the mounting plate member 84 so as to be integrated therewith. The plate connection bolt 83 passes through the lower plate member 86, the guide member 87, and the mounting plate member 84, and the plate connection nut 85 is fastened to the end side. .

The mounting plate member 84 is formed such that at least a portion is stably hung on the pedestal member 50 in a horizontal state by taking the shape of a rectangular plate having a hole through which the pedestal fixing rod member 82 passes. it is preferable As an example, the mounting plate member 84 is caught on the lower surface of the first plate part 51 . The lower end of the pedestal fixing rod member 82 is provided to protrude toward the lower portion of the first plate portion 51 , and the mounting plate member 84 is coupled to the lower end side of the lower surface of the first plate portion 51 . can take

In addition, it is preferable that a fixing protrusion 81a protruding between the first belt length 41 and the second belt length 42 is provided on the lower surface of the upper plate member 81 .

The fixing protrusion 81a is hooked on the first belt tenon 41 or the second belt tenon 42, and the upper side support part 40b of the first belt tenon 41 and the second belt tenon 42 is ) to fix the position of the upper plate member 81 mounted on the upper plate member 81, and prevent an accident in which the upper plate member 81 slides and falls during the installation of the pedestal fixing device 80 for the earth anchor construction.

The pedestal fixing device 80 for earth anchor construction according to the present invention is between the upper plate member 81 and the mounting plate member 84, the first and second band members 40 and the pedestal member 50. by disposing the first plate part 51 of the to maintain the first band part 41 and the second band part 42 in a state of being seated on the band fixing surface 50a.

In addition, the angle body 82a connecting the upper plate member 81 and the mounting plate member 84 is disposed between the first band member 41 and the second band member 42, Since the plate connecting members 83 and 85 are disposed on the outside of the first plate part 51 in the width direction of the pedestal member 50, the first belt part 41 and The position can be adjusted by moving the pedestal member 50 in a state in which the second band length 42 is seated.

Referring to FIG. 11 , the plate connecting members 83 and 85 are provided in plurality to be spaced apart from each other in the width direction of the lower plate member 86 to connect the lower plate member 86 and the mounting plate member 84 . It is preferable to bind more stably.

The construction method of the earth anchor using the pedestal fixing device 80 for the construction of the earth anchor according to the present invention is as follows.

12 and 13 to 18, the earth anchor construction method according to the present invention, the step of drilling the ground (2) on which the retaining wall (1) is constructed (S100), the hole formed in the ground (2) ( 2a) inserting the tension wire member 10 (S200), injecting the grout 71 into the perforation (2a) and hardening (S300); Placing the band member 40 on the outside of the retaining wall 1, and positioning the pedestal member 50 between the band member 40 and the retaining wall 1 to fix the pedestal member 50 step (S400); fixing the band member 40 to the pedestal member 50 (S500); and mounting the head block member 30 to which the tension line member 10 is fixed to the wale member 40 (S600).

In the step of inserting the tension line member 10 ( S200 ), a plurality of tension line members 10 are inserted, and a portion of the one end side of the tension line member 10 is outside the perforation 2a , that is, Insert the tension line member 10 so as to protrude to the outside of the retaining wall (1). In addition, the lower body 61 and the fixing body 20 may be provided at the end side of the tension wire member 10 inserted into the perforation 2a. In addition, the step (S200) of inserting the tension wire member 10 is performed by mounting the spacing member 60 to the plurality of tension wire members 10 inserted into the perforation 2a, thereby forming the tension wire member 10. It is more preferable to maintain an interval of . It should be noted that the embodiment of the lower body 61, the fixing body 20, and the gap maintaining member 60 will be omitted due to the overlapping description as described above.

In the step of inserting the tension wire member 10 (S200), a grout injection pipe member 70 capable of injecting the grout 71 into the perforation 2a is inserted together with the tension wire member 10, In the step (S300) of injecting and hardening the grout 71, the grout 71 is injected into the perforation 2a through the grout injection pipe member 70 and filled.

It should be noted that the pedestal member 50 has a triangular shape as an example, and the embodiment of the pedestal member 50 will be omitted as a duplicate description as described above.

The first band member 40 is lifted by a crane in a state in which the first band member 41 and the second band member 42 are connected by a separate connecting body and disposed at a preset installation position. .

In the step of fixing the pedestal member 50 (S400), the wale member 40 is seated on the wale fixing surface 50a of the pedestal member 50, and the wale member 40 and the pedestal member 50 are seated. ) combined with the pedestal fixing device 80 for earth anchor construction according to the present invention (S410), and the wale member 40 with the pedestal fixing device 80 for earth anchor construction according to the present invention. adjusting the position of the pedestal member 50 by moving the pedestal member 50 while in contact with the outer surface of the retaining wall 1 (S420); It includes a process (S430) of fixing the position of the pedestal member 50 to the outer surface of the retaining wall (1).

In the process of adjusting the position of the pedestal member 50 (S420), the pedestal member (50) is moved according to the distance between the wale member 40 and the mounting surface of the retaining wall (1). 50) and the mounting position of the band member 40 with respect to the pedestal member 50 are determined.

As an example, the pedestal member 50 is fixed to the outer surface of the retaining wall 1 by welding.

The pedestal fixing device 80 for earth anchor construction according to the present invention is to enable the pedestal member 50 to be moved in a state in which the wale member 40 and the pedestal member 50 are coupled, and the present invention The embodiment of the pedestal fixing device 80 for the construction of the earth anchor according to the above-described bar will be omitted as a duplicate description.

The step of fixing the band belt member 40 to the pedestal member 50 (S400) is the process of fixing the band belt member 40 to the pedestal member 50 detachably with the band belt fastener 90 (S510). ); and

It includes the process (S520) of separating and removing the pedestal fixing device 80 for the construction of the earth anchor according to the present invention.

The band belt fastener 90 is to detachably fix the band belt member 40 to the pedestal member 50, and the embodiment of the band belt fastener 90 is omitted as a redundant description as described above. .

The step of mounting the head block member 30 (S600) is to protrude through the end side of the tension line member 10 to the head block member 30, and then from the one end side of the protruding tension line. After pulling the steel wire part 11 in the abdomen 12 to apply a tensile force to the tension wire member 10 , the tension wire member 10 is fixed to the head block member 30 .

The present invention has the effect of simplifying the construction process, shortening the construction work time, and reducing the amount of steel and construction cost by simply fixing the end protruding to the outside of the retaining wall 1 through one pedestal.

The present invention has the effect of greatly improving the workability by stably performing the tension work of the tension wire.

It should be noted that the present invention is not limited to the above embodiments, and can be implemented with various modifications without departing from the gist of the present invention, which is included in the configuration of the present invention.

1: retaining wall 2: ground
10: tension wire member 11: steel wire part
12: coating part 20: fixing body
30: head block member 31: acupressure plate
32: block 40: band member
41: first band ledger 42: second band ledger
40a: abdomen 40b: support part
50: pedestal member 50a: wale fixing surface
50b: fixed inclined surface 50c: first pedestal protrusion
50d: second pedestal projection 51: first plate portion
52: second plate part 53: support plate part
54: third plate part 55: reinforcing plate part
60: gap maintaining member 61: inner body
70: grout injection pipe member 71: grout
80: pedestal fixing device for earth anchor construction
81: upper plate member 82: connecting frame member
82a: angle body 83: plate connection bolt
84: mounting plate member 85: plate connecting nut
86: lower plate member 87: guide member
90: band fastener 91: fixing plate member
92: cover plate member 93: band fixing bolt member
94: band-length fixing nut member
S100: Step of drilling the ground
S200: inserting the tension wire member
S300: Step to harden by injecting grout
S400: Step of fixing the pedestal member
S410: The process of combining with a pedestal fixing device
S420: The process of adjusting the position of the pedestal member
S430: the process of fixing the pedestal member to the outer surface of the retaining wall
S500: Step of mounting the head block member
S510: The process of fixing with a bandage fastener
S520: The process of removing and removing the pedestal fixing device

Claims (9)

It is a pedestal fixing device for earth anchor construction that couples a band member to which one end side of the earth anchor supporting the retaining wall is fixed, and a pedestal member disposed between the band member and the retaining wall,
The band member is
It includes a first band tenon and a second band tenon disposed to be spaced apart to form a gap through which the tension line member passes,
an upper plate member that is seated on the upper portion of the wale member;
a holding plate member, a portion of which is caught on the pedestal member at the lower side of the pedestal member;
It is disposed between the first band and the second band. and a connecting frame member for separably connecting the upper plate member and the mounting plate member,
The pedestal member is
a first plate portion having a wale fixing surface on the upper surface of which the wale member is seated; and
and a second plate part which is vertically erected and fixed to the lower surface of the first plate part, and has a lower surface inclined upward or downward from one side to the other,
The mounting plate member is disposed so that a portion is caught on the lower surface of the first plate part,
In a state in which the wale member is seated on the wale fixing surface, the pedestal member moves in a straight line in the same direction as the inclined wale fixing surface, and the distance between the wale member and the retaining wall is adjusted by the linear movement. A pedestal fixing device for earth anchor construction. delete The method according to claim 1,
The connecting frame member,
A pedestal fixing device for earth anchor construction, characterized in that the upper end is fixed to the lower surface of the upper plate member, and the lower end includes an angle body detachably connected to the mounting plate member. 4. The method according to claim 3,
The angle body is a pedestal fixing device for construction of an earth anchor, characterized in that it is an L-shaped angle or a U-shaped angle. delete 4. The method according to claim 3,
a lower plate member disposed between the first band and the second band, both ends protrude outward from both sides of the first plate, respectively, and the lower end of the angle body is fixed; and
Earth anchor construction pedestal fixing device, characterized in that it further comprises a plate connecting member for connecting the lower plate member and the mounting plate member. 7. The method of claim 6,
A pedestal fixing device for earth anchor construction, characterized in that guide members protruding to the outside of both side ends of the first plate part are provided on both lower sides of the lower plate member. 8. The method of claim 7,
The plate connecting member may include a plate connecting bolt passing through the lower plate member and the mounting plate member (84); and
A pedestal fixing device for earth anchor construction, characterized in that it includes a plate connection nut fastened to the plate connection bolt. The method according to claim 1,
A pedestal fixing device for construction of an earth anchor, characterized in that the lower surface of the upper plate member is provided with a fixing protrusion protruding between the first and second belt tenons.

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