KR101786067B1 - Small caliber pile composite concrete column and Small caliber pile composite concrete column construction method - Google Patents

Abstract

An object of the present invention is to provide a small caliber pile composite concrete column and a construction method of a small caliber pile composite concrete column, which is able to reduce a construction period and construction costs since a base construction can be simply performed by performing continuous construction joint of small caliber piles without performing excavation when building a pier or the like using a small caliber pile. In addition, safeness is improved and tensile force and compression force are increased so that structural stiffness can be strengthened. The construction method of a small caliber pile composite concrete column comprises: a step of forming a base portion for forming a base portion by using a small caliber pile; and a step of forming a column portion for integrally forming a column portion by using the small caliber pile that is continuously joined in an upper direction of the base portion.

Description

{Small caliber pile composite concrete column and Small caliber pile composite concrete column construction method}

The present invention relates to a method of constructing a small diameter file composite column and a small diameter file composite column, and more particularly, to a method of constructing a small diameter file by using a small diameter file, The present invention relates to a small diameter file composite column and a small diameter file composite column construction method capable of shortening the air, reducing the construction cost, improving the safety, and increasing the tensile force and compressive force.

Generally, the construction of pier columns is carried out in order of trenching process, piling process, pile construction and concrete foundation (including reinforcing steel reinforcement). In other words, foundation construction is required to install pier pillars.

More specifically, in order to construct the foundations of the pier pillars, a steel material file is inserted and a toe wall is installed between the steel piles. Then, the inner tuff is performed. When the inner tuff is completed, Construction.

When the construction of the bridge pier foundation is completed in this manner, the steel pile and the pier wall are removed, and the pier foundation, that is, the piercing around the structure, is closed.

However, the construction work using such a hypothesis has a disadvantage that the process can not be simplified due to the complication of the double work such as demolishing the steel material file and the earth wall, and there is a disadvantage in that the environmental pollution generated during the processing of the temporary construction material, A huge amount of money is wasted.

In addition, there is a disadvantage in that the construction cost increases and the labor cost rises due to the rise of the air according to the construction work.

In particular, there is a drawback that safety is poor. That is, there is a disadvantage in that the file portion and the pier are separated and the structural strength is weak.

Korean Patent Registration No. 10-0543946, Hybrid Bridge Piers Using Circular Tube Files. Korean Patent Registration No. 10-1357773, small diameter base file. Korean Patent Registration No. 10-1687072, precast pier and precast pier construction method using the same.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a pier for a bridge pier using a small diameter file, The present invention also provides a method for constructing a small diameter file composite column and a small diameter file composite column, which can simplify air flow, reduce installation cost, improve safety, and increase tensile force and compressive force.

According to an aspect of the present invention, there is provided a method of constructing a small diameter file composite post, comprising: forming a foundation part using a small diameter file; And a pillar forming step of integrally forming a pillar portion by using a small-diameter pile so as to be continuously connected in an upward direction of the base portion, wherein the forming of the pillar portion comprises: drilling the ground along the periphery of the pillar of the pillar to be installed A first step of forming perforation holes; A second step of installing first small diameter files inside the perforation holes, respectively; And a third step of injecting a grouting material so that the first small diameter files are embedded in the perforation holes, wherein the step of forming the column portion comprises: A fourth step of installing the plate so as to be disposed in a horizontal direction; Connecting the second small diameter files in the upward direction of each of the first small diameter files by using a coupler above the base plate; A sixth step of installing spacers at regular intervals in the middle of the second small diameter files to fix each second small diameter files; And a seventh step of installing concrete on the outside of the second small-diameter piles along the shape of the pillar and pouring the concrete.

It is preferable to perform the sixth and seventh steps after the new small diameter files are continuously connected in an upward direction by using a coupler on the second small diameter files in accordance with the height of the pillar.

The third step may further include the step of: inserting the casing into the outside.

After the pillar forming step: it is preferable that the reinforcing bars are separately disposed according to the upper shape of the pier and then the concrete is poured to integrally form the pier on the pillar.

Preferably, the spacer is formed with concave grooves on the recessed surface so that the second small diameter files can be inserted.

In order to accomplish the above object, according to the present invention, there is provided a small-diameter file composite column, comprising: a base portion to be embedded in a ground using a small-diameter file; And a pillar integrally formed on the top of the foundation using a small-diameter pile so as to be continuously connected in an upward direction of the foundation, the foundation comprising: pierced holes First small diameter files installed inside the first small diameter files; And a grouting material injected so that the first small diameter files are buried in the perforation holes, wherein the column portion comprises: a base plate provided so as to be horizontally disposed on the ground so as to be fixed by the first small- ; Second small diameter files installed above the base plate so as to be connected to each other in the upward direction of the first small diameter files using a coupler; A spacer provided at a predetermined distance in the middle of the second small diameter files to fix each second small diameter file; And a pillar formed by pouring a mold on the outside of the second small-diameter piles along the shape of a pillar and pouring concrete.

Preferably, the first and second small-diameter files include any one of a high-strength steel bar, a high-strength spiral steel bar, and a spiral steel pipe.

It is preferable that reinforcing bars are separately disposed along the upper part of the pier on the upper part of the pillar, and then the concrete is installed so that the pier and the pier are integrally formed.

Preferably, the spacer is formed with concave grooves on the recessed surface so that the second small diameter files can be inserted.

According to the method of constructing a small diameter file composite column and a small diameter file composite column according to the present invention, when a bridge pier is constructed using a small diameter file, the small diameter file is continuously connected without using a tile, The air can be shortened, the construction cost can be reduced, and the safety can be improved.

In addition, the present invention is characterized in that a tensile force and a compressive force are increased by using a spiral steel pipe, and the structural strength is strengthened by constructing the piles integrally up and down.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a method for constructing a composite bore of a small diameter according to the present invention,
2 is a view showing an installation example of a foundation part in a method of constructing a composite hollow cylinder of a small diameter according to the present invention,
3 is a view showing an example of the installation of the base plate in the method of constructing a small diameter file multiplexing column according to the present invention,
FIG. 4 is a view showing an installation example of a column in the method of constructing a small diameter file multiplexing column according to the present invention,
FIG. 5 is a plan view of an installation example of a base plate in a method of constructing a small diameter file multiplexing column according to the present invention, and FIG.
FIG. 6 is a plan view of a space installation example in the method of constructing a small diameter file multiplexing column according to the present invention, and FIG.
FIG. 7 is a view showing an example in which a base part and a column part are connected to each other according to a method for constructing a composite hollow cylinder of a small diameter according to the present invention,
FIG. 8 is a view showing the structure of a small diameter file composite column according to the present invention.

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

Prior to the description of the present invention, the following specific structure or functional description is merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms , And should not be construed as limited to the embodiments described herein.

In addition, embodiments according to the concept of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

FIG. 1 is a block diagram of a method for constructing a small-diameter file composite post according to the present invention, FIG. 2 is a view showing an example of installation of a foundation in a small-diameter file composite post construction method according to the present invention, FIG. 4 is a view showing an example of installation of a column in a method of constructing a small diameter file multiplexing column according to the present invention, and FIG. 5 is a view showing an example of installing a base plate in a small diameter file multiplex column construction method according to the invention. FIG. 6 is a plan view showing an example of installation of a space in a method of constructing a small-diameter file composite column according to the present invention. FIG. And FIG. 7 is a view showing an example in which a base part and a column part are connected to each other according to a method of constructing a small-diameter file composite post according to the present invention, and FIG. Small diameter according to the name of a view showing the structure of a file composite pillars.

As shown in these drawings, the present invention is a construction method in which a small diameter file (base) and a column (pier) are continuously and continuously connected. When a pier or the like is constructed using a small diameter file, And the small-diameter file can be continuously transferred and constructed.

The method for constructing a small diameter file composite column according to the present invention is characterized in that a foundation is constructed from a small diameter file and a small diameter file is formed on the foundation portion so that the column portion is continuously connected in an upward direction, This section explains how to construct a complex multi-column structure.

First, the ground is drilled along the circumference of a pillar of a pier to form perforation holes 110. That is, the perforation hole 110 is formed to a size enough to insert a small diameter file by using a punching machine such as a small crawler drill.

At this time, the number of the perforation holes 110 may be arranged in rows and columns so as to form the base of the column.

The first small diameter files 120 are installed in the perforation holes 110 and the grouting material 130 is injected so that the first small diameter files 120 are embedded in the perforation hole 110. [ And the foundation is constructed.

Here, the grouting material 130 may be injected through an injection hose or a trestle pipe so that the inside of the perforation hole 110 may be filled with the grouting material 130.

Further, the casing 112 can be inserted outside when the base portion is installed. However, the casing 112 may not be installed depending on the ground condition. In other words, when the soil layer has a certain depth from the surface of the ground, the perforation hole may collapse, so that the casing 112 is preferably inserted into the ground.

The column is integrally formed on the base portion.

The base plate 140 is installed horizontally in the ground so as to be fixed by the first small diameter files 120 and the nuts 142. The base plate 140 is installed above the base plate 140 The second small diameter files 150 are continuously connected in the upward direction of each of the first small diameter files 120 by using the coupler 152.

In the middle of the second small-diameter files 150 connected in this way, spacers 160 are provided at regular intervals to fix the second small-diameter files 150.

At this time, it is preferable that the spacer 160 is provided with a concave groove 162 in the recessed surface so that the second small diameter files 150 can be inserted. That is, after the second small diameter files 150 are placed in the recessed groove 162 and fixed using a binding member (not shown), the second small diameter files do not flow It is possible to provide a firm fixing force.

In this way, the molds 172 are installed outside the second small-diameter-diameter files 150 fixed by the spacers 160 along the shape of the pier columns, and then the concrete is poured 180 to complete the pillars .

At this time, new small-diameter files are successively connected to the upper portion of the second small-diameter-diameter files 150 in the upward direction according to the height of the column portion, and then the above-described spacer is installed. It is possible to form a bridge pillar with a desired length by piling.

In addition, as shown in FIG. 8, the reinforcing bars 180 may be separately installed according to the upper shape of the bridge pier, and then concrete may be poured to integrally form a bridge bridge on the bridge pier.

When the construction is carried out by such a method, that is, by using the high-strength steel pipe or the high-strength spiral steel pipe, the tensile force and the compressive force are increased, and the small diameter pile is integrally formed in the vertical direction, There is a characteristic that the strength becomes strong.

The structure of the small diameter file composite column according to the present invention is provided.

First small diameter piles 120 are installed in the perforation holes 110 formed in the ground along the circumference of the piers to be installed and the first small diameter piles 120 are inserted into the perforation holes 110 The grouting material 130 is injected to be embedded in the base portion.

The base plate 140 is installed horizontally on the ground so as to be fixed by the first small diameter files 120 and the nuts 142. The coupler 152 is disposed above the base plate 140, The second small diameter files 150 are installed in such a manner that the second small diameter files 150 are continuously connected in the upward direction of the first small diameter files 120.

In the middle of the second small diameter files 150 thus installed, spacers 160 are provided at regular intervals to fix the respective second small diameter files 150, and by the spacers 160 The pillar is integrally formed in the base portion by installing the mold 172 along the shape of the pillar of the pillar outside the second small-diameter piles 150 and then placing the concrete 170 thereon.

Here, the first and second small diameter files 120 and 150 may be formed of any one of a high strength steel bar, a high strength spiral steel bar, and a spiral steel pipe.

In addition, the spacer 160 is preferably formed with a concave groove 162 on the major surface thereof so that the second small diameter files 150 can be inserted.

An upper plate is installed on the upper part of the column portion thus formed to complete a bridge pier (see Fig. 8).

At this time, it is preferable that the bridge pier formed at the upper part of the pillar portion is separately laid along the shape of the bridge pier, and then the concrete is laid so that the pillar portion and the bridge pier are integrally formed. That is, the base portion, the column portion, and the pier are integrally formed.

According to the present invention, it is possible to simplify the basic construction by constructing the foundation by using the small-diameter file, thereby shortening the air, reducing the construction cost, and improving the safety.

In addition, the present invention is characterized in that a tensile force and a compressive force are increased by using a spiral steel pipe, and the pile is structured integrally up and down continuously, so that the structure is structurally strengthened.

Although the present invention has been fully described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

110 - perforation hole 120 - first small diameter file
130 - Grouting material 140 - Base plate
150 - second small diameter file 160 - spacer

Claims (9)

A base part forming step of forming a base part by using a small diameter file; And
And a post portion forming step of integrally forming the post portion using the small-diameter pile so as to be continuously connected in the upward direction of the base portion,
The base forming step comprises:
A first step of drilling the ground along the periphery of a pillar of a pier to form perforation holes;
A second step of installing first small diameter files inside the perforation holes, respectively; And
And a third step of injecting the grouting material so that the first small diameter files are embedded in the perforation hole,
Wherein the column portion forming step comprises:
A fourth step of installing the base plate so as to be horizontally disposed on the ground so as to be fixed by the first small diameter files and the nut;
Connecting the second small diameter files in the upward direction of each of the first small diameter files by using a coupler above the base plate;
A sixth step of installing spacers at regular intervals in the middle of the second small diameter files to fix each second small diameter files; And
And a seventh step of installing concrete on the outside of the second small diameter files in accordance with the shape of the pier of the pier and pouring the concrete.
The method according to claim 1,
Wherein the column portion forming step comprises:
Wherein the small diameter files are successively connected in an upward direction by using a coupler on the second small diameter files in accordance with the height of the pillar, and then the sixth and seventh steps are performed. Column construction method.
The method according to claim 1,
Wherein the third step comprises:
The method of claim 1, further comprising the step of inserting the casing into the outer side.
The method according to claim 1,
After the pillar forming step:
Wherein the reinforcing bars are laid out separately according to the upper shape of the piers, and concrete is laid on the piers to integrally form the piers on the upper part of the pillars.
The method according to claim 1,
Said spacer comprising:
And a concave groove is formed on the eccentric surface so that the second small diameter files can be inserted.
A base portion provided so as to be embedded in the ground using a small diameter file;
And a column portion provided on an upper portion of the base portion using a small-diameter file so as to be continuously connected in an upward direction of the base portion,
Said base comprising:
First small diameter files installed in the interior of the perforation holes perforated in the ground along the perimeter of the column of piers to be installed; And
And a grouting material injected such that the first small diameter files are embedded in the perforation holes,
Wherein the pillar portion comprises:
A base plate installed to be horizontally disposed on the ground so as to be fixed by the first small diameter files and the nuts;
Second small diameter files installed above the base plate so as to be connected to each other in the upward direction of the first small diameter files using a coupler;
A spacer provided at a predetermined distance in the middle of the second small diameter files to fix each second small diameter file; And
And a pillar formed by placing a mold on the outside of the second small diameter piles along the shape of a pillar of a pillar and casting concrete.
The method according to claim 6,
Wherein the first and second small-diameter files include:
A high-strength steel bar, a high-strength spiral steel bar, and a spiral steel pipe.
The method according to claim 6,
Wherein a reinforcing bar is separately disposed along the upper part of the pier on the upper part of the pillar, and concrete is poured thereon so that the pier and the pier are integrally formed.
The method according to claim 6,
Said spacer comprising:
And a concave groove is formed on the eccentric surface so that the second small diameter files can be inserted.

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