KR102113859B1 - Pile with head reinforcing device and method therefor - Google Patents

Abstract

A file and construction method using a tofu reinforcing means that can more effectively install a tofu reinforcing means by installing a double pipe type file on the ground and easily assembling and installing the tofu reinforcing means through the outer file through the outer file. As a result, the file using the head reinforcing means is to be inserted and installed directly into the insertion connector formed on the inner surface of the outer file or the outer peripheral surface of the inner file through the head of the outer file through the head of the outer file.

Description

File and construction method using tofu reinforcing means {PILE WITH HEAD REINFORCING DEVICE AND METHOD THEREFOR}

The present invention relates to a file and a construction method using a tofu reinforcing means. More specifically, while constructing a double pipe type file on the ground, the head and head reinforcement means can be easily assembled and installed in the inner file by penetrating the outer file, so that the file and construction using the head reinforcement means can more effectively install the head reinforcement means. It's about how.

Figure 1a shows a pile 10 with a conventional head reinforcement means (20).

The pile 10 may use a steel pipe pile or the like, and when the ground is drilled and the pile 10 is pressed, the pile head is extended over the ground surface and exposed.

Accordingly, the foundation plate concrete is poured so that the pile head is buried. It can be seen that the pile 10 is structurally integrated into the base plate 30 by installing the head reinforcement means 20 which is a rebar assembly to the pile head. .

To this end, a horizontal perforation hole is formed in the pile head to fix the head reinforcing means 20, which is a rebar assembly in the pile head, and the reinforcing bar (head reinforcement) of the rebar assembly is pierced through the horizontal perforation hole and pierced through the head reinforcement. It can be seen that the closing plate 30 is installed to be suspended.

That is, since the pile 10 is first constructed and the head reinforcement means 20, which is a rebar assembly, is installed, in order to connect each other, in FIG. 1A, the head reinforcement reinforcement is penetrated through a horizontal through hole, and fastening means such as a nut are used. You can see that it will be used.

Figure 1b is an exemplary view of a head reinforcement means used when using the micro-pile 41 and the double steel pipe 42 as a conventional file.

Since the micropile 41 has a threaded portion on its outer circumferential surface in the form of a steel bar, it can be seen that the upper fixing plate 43 is penetrated and the upper fixing plate is fixedly installed using the fixing nut 44.

At this time, the head reinforcement 45, so that the upper end of the upper fixing plate (43) across, the lower end also penetrates all of the double steel pipe (42) equipped with a connecting reinforcement (47) to double using the fastening nut (45). It can be seen that it can be settled on the inner surface of the steel pipe.

Accordingly, it can be seen that both the conventional head reinforcement and the pile are installed in a manner that penetrates the pile head located on the outside, and a lot of fastening means such as a fastening nut are used. However, in order to secure structural integrity with such a fastening means, the number of installations of the head reinforcement reinforcement must increase, and thus the number of horizontal through-holes formed in the pile head increases, and thus the workability deteriorates. It can be seen that there is a limitation in that it is not easy to manage and it is inevitable to cause air delay.

Republic of Korea Patent No. 10-1714464 (Invention name: composite file using tofu-reinforced micro-file and its construction method, publication date: April 04, 2017) Republic of Korea Patent No. 10-1071405 (Invention name: Pile head reinforcement structure, publication date: October 27, 2011)

Accordingly, the present invention considers the ease of installing the head reinforcement means fixedly installed by the fastening means to the pile head, and while securing structural integrity in the double pipe type file, it is possible to simply install the head reinforcement means in the inner file. The technical task is to solve the problem of providing files and construction methods using tofu reinforcing means that can provide quick and economical tofu reinforcing means.

In order to provide a file using the head reinforcing means fixed to the inner file of the present invention, the head reinforcing means is installed in the file of the double pipe structure in which the inner file is set inside the outer file, but the lower end of the head reinforcing bar of the head reinforcing means is provided. Penetrating through the head of the external file so as to be inserted and installed directly into the insert connector formed on the inner surface of the outer file or the outer circumferential surface of the outer file, the head reinforcement means is installed on the head of the file, and the insertion connector has a lower end of the head reinforcement. It is inserted horizontally, and the grouting material is injected into the insert connector through a fixing bolt that can be fastened downward from the upper surface of the insert connector and a grouting hole formed in the insert connector, and the insert connector and the head reinforcement It will allow the bottom to be rigid with each other.

In addition, the pile construction method using the head reinforcement means fixed to the inner pile, (a) pressing the helix pile member with a rotary blade for press-fitting on the outer circumferential surface; (b) installing an additional helix pile member on the top of the lowermost helix pile member, and installing an additional helix pile member in which the external file and the internal file are combined with each other on the surface G; (C) installing the head reinforcement means to the head of the helix pile formed in a double tube structure; And (d) injecting a grouting material into the external file and the internal file of the helix file, thereby acting as a composite file body. In the step (c), the internal file is set inside the external file. Tofu reinforcing means is installed in the file of the double pipe structure, but the bottom of the head reinforcing bar of the tofu reinforcing means penetrates through the head of the external file and is directly inserted into and inserted into the insertion connector formed on the inner surface of the outer file or the outer surface of the inner file. By doing so, the head reinforcing means is installed on the head of the pile, and the lower end of the head reinforcing bar is horizontally inserted into the insertion head, and is formed in the fixing bolt and the inserting connector that can be fastened downward through the upper end of the inserting connector. The grouting material is injected into the insertion connector through the grouting hole, so that the insertion connector and the lower end of the head reinforcement can be strengthened with each other.

In addition, preferably, the file construction method using the head reinforcement means fixed to the inner file includes: (a) inserting an external file serving as a casing into a hole formed in advance on the ground; (b) inserting a micro file internal file into the external file; And (c) installing the head reinforcing means to the outer file and the inner file head formed of a double pipe structure, wherein, in the step (c), the head is reinforced to a file of the double pipe structure in which the inner file is set inside the outer file. The means is installed, and the lower end of the head reinforcement of the head reinforcement means penetrates the head of the external file and is directly inserted into the insertion connector formed on the outer circumferential surface of the inner file so that the head reinforcement means is installed in the head of the file. , An external file is inserted into the perforated hole formed in the ground to form an internal file that is a micropile inside the external file at the surface area, and the insertion connector is formed to extend horizontally on the outer circumferential surface of the internal file that is a micropile. The sieve is formed so that the end face is in contact with the outer circumferential surface of the rotating body, or the side is formed so as to be in contact with the outer circumferential surface of the rotating body so that the insertion portion of the head reinforcement is longer.

According to the file using the head reinforcing means of the present invention, according to the file and the construction method using the head reinforcing means in which the head reinforcing bar is installed and fixed to the inner file through the external file, when using the micro file as the internal file and hollow Since it can be applied even when a pipe is used, it is effective to install the head reinforcement means in using the dual file by the external file and the internal file.

Figure 1a is a cross-sectional view of a file having a conventional head reinforcement means,
1B is an exemplary view of a head reinforcement means used when a conventional micropile and a double steel pipe are used together;
2A, 2B, 2C, 2D, and 2E are perspective views of the configuration of the file using the head reinforcement means fixed to the internal file of the present invention and an example of an insert of the head reinforcement means,
3 and 4 is a construction diagram of a file using the head reinforcing means of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains may easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. In addition, in order to clearly describe the present invention in the drawings, parts irrelevant to the description are omitted, and like reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part “includes” a certain component, this means that other components may be further included rather than excluding other components unless specifically stated to the contrary.

[File 200 using tofu reinforcing means 230 of the present invention]

2A, 2B, 2C, 2D, and 2E are perspective views illustrating the configuration of the file 200 using the head reinforcement means 230 and the inserting connector 233 of the head reinforcement means 230 of the present invention. It is shown.

First, the pile 200 is a double pile structure in which the inner pile 220 is formed inside the outer pile 210, and this double pile structure has the greatest bending moment due to the earth pressure from the lower surface to a certain depth. This is to resist this as a pile structure.

Accordingly, the present invention uses the external file 210 and the internal file 220 as a dual file structure. According to FIGS. 2A, 2B, 2C, 2D, and 2E, helix files and microfiles are two examples. The case of using is introduced.

Accordingly, the case where the helix file is used as the file 200 will be described with reference to FIGS. 2A and 2B.

The helix pile is constructed by rotating and press-fitting while connecting a large number to the ground, and thus there is an advantage of excellent workability since there is no need to form a separate hole.

However, there are limitations of the equipment required for rotational press-fitting, and since the bending moment caused by the earth pressure from the bottom of the surface to a certain depth (surface area) occurs the most, the surface area is formed in the form of a double pile, and the bottom of the surface area is a single pile. It can be seen that the one formed by is used.

Thus, as shown in Figure 2a and 2b, the inner pile 220 of the helix pile in the form of a connected vertical tube member (a rod or a hollow tube can be used) to form a plurality of connections over the entire length of the construction depth, but the lower part It can be seen that a rotary blade 211 for press-fitting is formed on the outer circumferential surface, and an outer pile 210 in the form of a vertical tube wrapped around the inner pile 220 is positioned at the center of the surface.

That is, the outer pile 210 is a pipe member having a larger diameter than the inner pile 220 and is set to be located on the surface G portion, and the lower portion of the outer pile 210 is tapered to the upper surface of the inner pile 220 and connected to each other. You can see that it is.

For example, as illustrated in FIGS. 2A and 2B, the inner file 220 in which the external file 210 is installed is formed with a stopper 212 serving as a locking hole at the bottom, and correspondingly, the lower end of the external file 210 is It can be seen that the guide portion 213 is formed to be interpolated into the stopper 212.

At this time, the stopper 212 may be formed of an upwardly inclined locking hole, as shown in FIGS. 2A and 2B, and an anti-jaw formed inside and an upper L-shaped housing, and a guide portion 213 It can be seen that) is a bent vertical portion and is inserted and mounted downwardly in a locking hole formed at an upward slope, and also, an anti-jaw is formed so that the anti-jaws formed inside the L-shaped housing can be mounted while hanging from each other.

Accordingly, the guide portion 213 is inserted downwardly mounted on the stopper 212 to control the inflow of soil and the like and the outflow of the grouting material, and the insertion force makes it possible to resist the lateral force with a single structure. .

In addition, it can be seen that the top of the inner pile 220 extended to the top of the ground surface G is the top head reinforcement means 230, and the top fixing plate 231 is fixedly installed, and the top is fixed to the top fixing plate 231. It is hung and fixed, and the lower end is to be fitted into a through hole formed at the upper end of the external pile 210, but the head reinforcement bar 232 is inserted and installed into the insertion connector 233 formed horizontally on the outer peripheral surface of the inner pile 220. You can see that it is.

Thus, as shown in Figure 2d, the upper fixing plate 231, the head reinforcement 232, the head reinforcement means 230 by the insertion connector 233, the lower end of the head reinforcement 232, the external file 210 It can be seen that it penetrates through the upper end of the inner file 220 so that it is directly inserted by the insertion connector 233 to be inserted and connected.

Accordingly, it can be seen that the tofu reinforcing means 230 can be more easily installed in the file 200 having a double pipe structure.

At this time, the insertion connector 233, as shown in Fig. 2e, the head diameter is formed smaller than the terminal diameter or the initial diameter is larger than the terminal diameter so that the lower end of the head reinforcement 232 is horizontally inserted and fixed The lower end of the reinforcing bar 232 is simply inserted to fit and fixedly installed.

Accordingly, the insertion connector 233 is formed of a horizontal sleeve having a primary diameter smaller than the terminal diameter or a primary diameter larger than the terminal diameter, and a plurality of horizontally formed on the inner surface of the inner pile 220 or the inner surface of the outer pile 210. Will be installed.

At this time, the head reinforcing bar 232 inserted into the insertion connector 233 may be formed in a tapered shape at the end or a pinch larger than the diameter of the reinforcing bar may be added to be more firmly fixed to the insertion connector 233. .

In addition, the insertion connector 233, the lower end of which the head reinforcement bar 232 is inserted, is fixed bolt 236 that can be fastened downward from the upper surface of the insertion connector 233 to secure the integrity, and the insertion connector ( This is fixed by injecting the grouting material into the insertion connector 233 through the grouting hole 235 formed in 233, so that the lower ends of the insertion connector 233 and the head reinforcement bar 232 can be rigid with each other. It can be seen that bolting and grouting material injection can be performed in the upper open space, thereby ensuring workability.

Further, the insertion connector 233 is installed in multiple horizontally on the inner surface of the inner file 220 or the inner surface of the outer file 210, so that welding treatment is performed in advance on the parts that are in contact with each other, or by bending by the horizontal and vertical parts. It does not matter if it is softened and the vertical portion is fixed to the outer peripheral surface of the inner pile 220 with an inner pile through bolt,

Using the threads formed inside the vertical part, the inner file 220 can be fixed or the vertical part can be formed to have a larger diameter than the inner file 220, and the vertical part can be fitted to the outside of the inner file 220 to be fixedly installed. .

Accordingly, even when the helix file is used as the internal file 220, the upper fixing plate 231, the head reinforcement bar 232, and the head reinforcement means 230 by the insertion connector 233 are the lower end of the head reinforcement bar 232 It can be seen that the external file 210 can be penetrated to be inserted and connected by the insertion connector 233.

2A and 2B, the upper fixing plate 231, the head reinforcing bar 232, the head reinforcing means 230 by the insertion connector 233, the external file 210 and the internal file 220 It can be seen that the foundation reinforcing bar 230 is embedded by reinforcing the basic reinforcing bar in an integrated state, and reclaiming the head reinforcing means 230 while reinforcing the basic reinforcing bar in the foundation concrete C.

In the end, the present invention is sufficient to secure structural integrity compared to the case of using a fastening means such as a conventional nut by the rigidity of the head reinforcement 232 by the insertion connector 233, thereby minimizing the number of installations. .

Next, a case in which the microfile is used as the file 200 will be described with reference to FIG. 2C.

The micropile is a file formed in the form of a steel bar with a threaded portion formed on the outer circumferential surface, without rotating and press-fitting the outer pile 210 on the ground first with a casing and using a spacer or the like not shown in the center of the inner space of the outer pile 210 As the internal file 220, the micro file is constructed in a vertical setting manner.

At this time, as the head reinforcing means 230, as shown in Figure 2d, the upper fixing plate 231, the head reinforcing bar 232, the insertion connector 233 is used as it is.

That is, referring to Figure 2d, the upper fixing plate 231 is fastened to the outer peripheral surface of the micropile and fixed with a fixing nut,

The upper end of the head reinforcing bar 232 is fixed to the upper fixing plate 231, and the lower end is fitted into a through hole formed at the top of the external file 210 constructed by a casing, but is an internal file 220 that is a micro file. It can be seen that the head reinforcement bar 232 is inserted into the insertion connector 233 that is horizontally formed on the outer circumferential surface.

In addition, it can be seen that the external file 210 may be formed in a double tube structure. Since this uses a micro file as an internal file, it can be said that it is used because there is room in the space between the micro file and the external file. (210) itself can be formed of a double tube regardless of the inner file (220). It is irrelevant that the external file 210 in the form of the dual tube may be formed as an external file or an internal file as shown in FIG. 2D.

Further, as shown in Figure 2d, the outer circumferential surface of the micropile is formed with a screw portion to fasten the rotating body portion 234, which is capable of rotational fastening, to the outer circumferential surface of the micropile, and the inserting connector 233 on the outer circumferential surface of the rotating body 234 ) Is installed to extend horizontally. It is also possible to use a hollow pipe further inserted into the outer peripheral surface of the micropile.

It can be seen that the insertion connector 233 can be formed to extend horizontally on the outer circumferential surface of the inner file 220, which is a micropile, as shown in FIG. 2E, and the insertion connector 233 has an end face with a rotating body. The portion 234 may be formed to contact the outer circumferential surface, or the side surface may be formed to contact the outer circumferential surface of the rotating body portion 234. In the case of the side, since the insertion portion of the head reinforcement reinforcement 232 becomes longer, it is possible to have a more certain stiffening effect.

Accordingly, even when the micro-file is used as the internal file 220, the head fixing plate 230 by the upper fixing plate 231, the head reinforcement bar 232, and the insertion connector 233 has a lower end of the head reinforcement bar 232. It can be seen that the external file 210 can be penetrated directly into the internal file 220 by the insertion connector 233.

Also, the insertion connector 233 is formed to have a smaller initial diameter than the terminal diameter or a larger initial diameter than the terminal diameter so that the lower end of the head reinforcement 232 is horizontally inserted and fixed. It is inserted and inserted so that it can be fixedly installed.

Accordingly, the insertion connector 233 is formed of a horizontal sleeve having a primary diameter smaller than the terminal diameter or a primary diameter larger than the primary diameter, and can be formed by horizontally installing a plurality of inner piles 220 on the outer circumferential surface. Able to know.

At this time, the head reinforcing bar 232 inserted into the insertion connector 233 may be formed in a tapered shape at the end or a pinch larger than the diameter of the reinforcing bar may be added to be more firmly fixed to the insertion connector 233. .

In addition, the insertion connector 233, the lower end of which the head reinforcement bar 232 is inserted, is fixed bolt 236 that can be fastened downward from the upper surface of the insertion connector 233 to secure the integrity, and the insertion connector ( Grouting material is injected into the insertion connector 233 through the grouting hole 235 formed in 233 to allow the lower ends of the insertion connector 233 and the head reinforcing bar 232 to stiffen each other while fixing the bolts. It is the same that it can be seen that the fastening and grouting material injection can be performed in the upper open space so that workability can be secured.

Further, the insertion connector 233 is installed in a horizontally on the outer circumferential surface of the inner file 220, in advance welding treatment to the parts in contact with each other, or softened in a bending form by the horizontal portion and the vertical portion, and the vertical portion of the inner file ( 220) It does not matter if it is fixed with an internal pile through bolt on the outer circumferential surface.

2c, the upper fixing plate 231, the head reinforcing bar 232, and the head reinforcing means 230 by the insertion connector 233 are integrated into both the external file 210 and the internal file 220. It can be seen that the foundation reinforcing bar 230 is rebuilt while the foundation reinforcing bar 230 is buried while the foundation reinforcing bar is retracted in the preliminary state, and the foundation reinforcement 230 is embedded in the foundation concrete C.

Also, even if a micropile is used, the present invention is sufficient in securing structural integrity compared to the case of using a fastening means such as a conventional nut by the rigidity of the head reinforcement 232 by the inserting connector 233, thereby improving the number of installations. It is possible to minimize the.

[File construction method using the head reinforcing means 230 of the present invention]

3 and 4 show the construction of the pile using the head reinforcing means of the present invention.

First, FIG. 3 is a case where a helix file is used as the file 200, and is a construction flow chart for constructing a composite file using the head reinforcement means 230, and FIG. 4 is a case where a micro file is used as the file 200 , It is also a construction flow chart to construct in the form of a composite file using the tofu reinforcement means 230.

First, as a case of using a helix file based on FIG. 3, a case in which the tofu reinforcement means 230 is used to construct a composite file will be described.

First, as shown in FIG. 3A, it can be seen that the helix pile member having the rotary blade 211 for press-fitting is pressed into the ground on the outer circumferential surface.

That is, it can be seen that the lower end of the helix pile member is formed with a rotary blade 211 so that it does not form a punched hole by rotational press-fitting.

Next, as shown in Figure 3b, while installing an additional helix pile member on the top of the bottom helix pile member, the portion located on the surface (G) of the outer file 210 and the inner file 220 is an additional helix file combined with each other The member will be installed.

At this time, the grouting material such as concrete may be first filled into the external file 210 and the internal file 220, or may be filled later.

The outer file 210 and the inner file 220 can control the inflow of soil and the like and the outflow of the grouting material by using the stopper 212 and the guide portion 213, and one structure against the lateral force through insertion and insertion. As you can see, it is possible to resist.

Next, as shown in FIG. 3C, the head reinforcing means 230 described above is installed on the head of the helix pile formed in a double pipe structure.

Accordingly, the upper fixing plate 231, the head reinforcement 232, and the head reinforcement means 230 by the insertion connector 233, the lower end of the head reinforcement reinforcement 232 penetrates the external file 210 and the internal file ( 220) or the insertion connection 233 formed in the external file 210 is simply inserted and connected.

Next, as shown in Fig. 3d, the injection material (G1) such as concrete is injected into the external file 210 and the internal file 220 of the helix pile, thereby functioning as a composite pile body, and bending near the ground surface. It is optimized for securing rigidity.

Next, as shown in FIG. 3E, the foundation reinforcing means 230 may be embedded by reinforcing the foundation rebar around the head of the helix pile and allowing the foundation reinforcement to be buried in the foundation concrete (C). You can see that there is.

Next, as a case of using a micro-file based on FIG. 4, the construction case in the form of a composite file using the head reinforcing means 230 will be described.

First, as shown in Figure 4a, it can be seen that the external file 210 serving as a casing is inserted into a perforated hole previously formed on the ground.

It can be seen that, unlike the helix pile, if the perforated hole is used, the external pile 210 can be constructed with a necessary depth even if a rock layer under the surface exists. In this case, the external file 210 may be formed of a double tube structure.

Next, as shown in FIG. 4B, a micropile equipped with a coupler and a spacer is inserted into the external file 210, and it can be seen that the top is exposed to the top of the ground surface G.

Since the micropile is in the form of a rod, a spacer may be used to be located in the center of the external pile 210, and a plurality of micropile members may be connected and used according to the construction depth.

Next, as shown in Figure 4c, the grout material is filled into the external file 210 to be used as a synthetic file.

Next, as shown in FIG. 4D, the above-described head reinforcement means 230 is installed in the outer file and the inner file head formed in a double pipe structure.

Accordingly, the upper fixing plate 231, the head reinforcement 232, and the head reinforcement means 230 by the insertion connector 233, the lower end of the head reinforcement reinforcement 232 penetrates the external file 210 and the internal file ( It can be seen that it is simply inserted and connected by the insertion connector 233 formed in 220).

Next, as shown in FIG. 4E, the foundation reinforcing means 230 is buried while the foundation rebar is reinforced around the helix pile head, and the foundation reinforcement 230 is embedded in the foundation concrete C. You can see that

The above description of the present invention is for illustration only, and those skilled in the art to which the present invention pertains can understand that the present invention can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and it should be interpreted that all changes or modified forms derived from the meaning and scope of the claims and equivalent concepts thereof are included in the scope of the present invention. do.

200: file 210: external file
211: rotary blade 212: stopper
213: guide 220: internal files
230: tofu reinforcement means 231: top fixing plate
232; Head reinforcement 233: Insertion connector
234: rotating body portion 300: base plate

Claims (12)

Tofu reinforcement means 230 is installed in the file 200 having a structure in which the inside file 220 is set inside the outside file 210,
The lower end of the head reinforcing bar 232 of the head reinforcing means 230 penetrates the head of the outer file 210 to the insertion connector 233 formed on the inner surface of the outer file 210 or the outer surface of the inner file 220. Directly inserted and fitted so that the head reinforcement means 230 is installed on the head of the file 200,
The insertion connector 233, the lower end of the head reinforcement 232 is inserted horizontally,
Insertion connector 233 is injected into the insertion connector 233 through a fixing bolt that can be fastened downwardly from the top surface and a grouting hole formed in the insertion connector 233, thereby inserting the insertion connector ( 233) and the file using the head reinforcement means to be able to strengthen the bottom of the head reinforcement (232) with each other. According to claim 1,
The pile 200 is a helix pile, and an outer pile 210 formed around the inner pile 220 is formed on a surface portion of the inner pile 220 that is rotationally press-fitted to the ground.
The lower end of the head reinforcing bar 232 is inserted into a horizontal through hole formed in the head of the external file 210, and directly into the insertion connector 233 formed on the inner surface of the outer file 210 or the outer peripheral surface of the inner file 220. File using tofu reinforcement means to be inserted and fitted. According to claim 1,
The file 200 is a micro file, and an external file 210 is inserted into a perforated hole formed in the ground to form an internal file 220 which is a micro file inside the external file 210 at the surface portion.
The lower end of the head reinforcing bar 232 is inserted into a horizontal through hole formed in the head of the external file 210, and is directly inserted into and installed in the insertion connector 233 formed on the outer circumferential surface of the inner file 220, The head reinforcing bar 232 is a file using a head reinforcing means so that the end is made in a tapered shape or a pinch larger than the reinforcing bar diameter is added to be more firmly fixed to the insertion connector 233. According to claim 1,
The insertion connector 233,
The head diameter is formed smaller than the terminal diameter so that the bottom of the head reinforcement bar 232 is horizontally inserted and fixed, or the bottom diameter of the head reinforcement bar 232 is simply inserted into the bottom of the head reinforcement bar 232 to be inserted and fixed. As a horizontal sleeve, a file using a head reinforcement means to horizontally install a plurality of inner files 220 on the outer circumferential surface or the outer files 210 inner surface. delete According to claim 1,
The pile 200 is a helix pile, and an outer pile 210 formed by wrapping the inner pile 220 is formed on a surface portion of the inner pile 220 that is rotationally pressurized on the ground.
The outer pile 210 is a pipe member having a larger diameter than the inner pile 220, and is set to be located on the surface of the surface G. The lower portion of the outer pile 210 is tapered to the upper surface of the inner pile 220 so as to be connected to each other. Ha,
The inner file 220 in which the external file 210 is installed is formed with a stopper 212 serving as a catching hole at the bottom, and a guide portion 213 so that the lower end of the external file 210 is inserted into the stopper 212. File using the head reinforcement means to form a. The method of claim 6,
The stopper 212 is formed of an obliquely formed catching hole, and the guide part 213 is a bent vertical part and is inserted downwardly into a catchingly formed obliquely upward to be mounted,
The stopper 212 allows the prevention jaw to be formed inside and the upper portion to be formed into an open L-shaped housing, and the guide portion is formed with an prevention jaw so that the prevention jaws formed inside the L-shaped housing are hooked to each other so that the head is reinforced. Files by means. Tofu reinforcing means 230 is installed in the file 200 having a structure in which the inside file 220 is set inside the outside file 210, but the bottom of the tofu reinforcing bar 232 of the tofu reinforcing means 230 is an external file. Penetration means 230 is inserted through the head of the 210 and inserted directly into the insertion connector 233 formed on the inner surface of the outer file 210 or the outer surface of the inner file 220 so that the head reinforcement means 230 is a file 200 ) To be installed on the head,
The file 200 is a micro-file, and an external file 210 is inserted into a perforated hole formed in the ground to form an internal file 220 which is a micro-file inside the external file 210 in the surface area.
The insertion connector 233 is to be formed to extend horizontally on the outer circumferential surface of the inner pile 220, which is a micropile, and the inserting connector 233 is a rotating body portion that is fastened to the outer circumferential surface of the inner pile 220, which is a micropile. (234) The file using the head reinforcement means to be formed so as to be in contact with the outer circumferential surface, or the side is formed to be in contact with the outer circumferential surface of the rotating body 234, so that the head reinforcement bar 232 has a longer insertion portion. The method of claim 8,
The external file 210 is a file using a head reinforcing means using a double steel pipe formed separately from the internal file 220 which is a micro file. The method of claim 9,
The rotating body portion 234 is a file using a head reinforcing means that is threaded on the inside and is integrated by being fitted outside the inner pile 220 which is a micro-pile or hollow steel pipe. (A) pressing the helix pile member having a rotary blade 211 for press-fitting on the outer circumferential surface to the ground;
(b) installing an additional helix pile member on the top of the lowermost helix pile member, and installing an additional helix pile member in which the outer file 210 and the inner file 220 are combined with each other on the surface G. ;
(c) installing the head reinforcement means 230 on the head of the helix pile formed in a double pipe structure; And
(d) injecting a grouting material inside the external file 210 and the internal file 220 of the helix file, thereby acting as a composite file body; including,
In the step (c), the head reinforcing means 230 is installed in the file 200 of the double pipe structure in which the inner file 220 is set inside the outer file 210, but the head is reinforced in the head reinforcing means 230. The lower end of the reinforcing bar 232 penetrates the head of the external file 210 and is directly inserted into and inserted into the insertion connector 233 formed on the inner surface of the outer file 210 or the outer surface of the inner file 220 to strengthen the head. The means 230 is to be installed in the head of the file 200,
The insertion connector 233, the lower end of the head reinforcement 232 is inserted horizontally,
Insertion connector 233 is injected into the insertion connector 233 through a fixing bolt that can be fastened downwardly from the top surface and a grouting hole formed in the insertion connector 233, thereby inserting the insertion connector ( 233) and a file construction method using a head reinforcing means to allow the lower ends of the head reinforcement bars 232 to be rigid with each other. (a) inserting an external file 210 serving as a casing into a perforated hole previously formed on the ground;
(b) inserting the micro file internal file 220 into the external file 210; And (c) installing the head reinforcing means 230 to the head of the external file 210 and the internal file 220, wherein, in the step (c), the internal file 220 inside the external file 210 is included. ) Is installed in the file 200 of the structure is set, the head reinforcing means 230, but the bottom of the head reinforcing bar 232 of the head reinforcing means 230 penetrates the head of the external file 210 to the inner file (220) to be inserted and installed directly into the insertion connector 233 formed on the outer circumferential surface, so that the head reinforcement means 230 is installed on the head of the file 200,
An external file 210 is inserted into a perforated hole formed in the ground to form an internal file 220, which is a micropile, inside the external file 210, on the surface area, and the insertion connector 233 is an internal micropile. The pile 220 is formed to extend horizontally on the outer circumferential surface, and the insertion connector 233 is formed so that the end surface is in contact with the outer circumferential surface of the rotating body portion 234, or the side surface is in contact with the outer circumferential surface of the rotating body portion 234. File construction method using the head reinforcement means to ensure that the insertion portion of the head reinforcement reinforcement (232) is longer.

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