KR101567377B1

KR101567377B1 - helix pile

Info

Publication number: KR101567377B1
Application number: KR1020150062974A
Authority: KR
Inventors: 정명철
Original assignee: (주)에이엠지그룹건축사사무소
Priority date: 2015-05-06
Filing date: 2015-05-06
Publication date: 2015-11-11

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a spiral file for a geotechnical construction, and more particularly, to a spiral file for ground construction, and more particularly to a foundation construction of a building or a reinforcement work of soft ground, The present invention relates to a spiral file for ground construction for efficiently performing geotechnical drilling.
According to an aspect of the present invention, A spiral pile for foundation work of a foundation, comprising: a steel pipe (100) into which a grout is injected through a passage provided inside; A screw 200 installed on the outer periphery of the steel pipe 100 and spirally rotating in accordance with the rotation of the steel pipe 100 to penetrate the steel pipe 100 into the ground; And a spade 300 installed in a plate form at the lower end of the steel pipe 100 and being inserted upright at a right angle on the ground to excavate the ground while rotating in the course of penetration of the steel pipe 100.

Description

Helix pile for ground construction {helix pile}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a spiral file for a geotechnical construction, and more particularly, to a spiral file for ground construction, and more particularly to a foundation construction of a building or a reinforcement work of soft ground, The present invention relates to a spiral file for ground construction for efficiently performing geotechnical drilling.

Generally, the spiral file is used for the purpose of strengthening the ground such as foundation work of the building, reinforcement work of the soft ground, etc. These files are formed by grouting the hole where the file is removed after drilling the ground, And then grouting is performed.

These files raise the weight chain hammer and lower the steel pipe to lower the pile by drilling the ground by installing the pile, or by rotating the steel pipe with the spiral around the piercing screw to drill the ground and install the pile. to be.

Various files are being developed with this background, and their structure can be understood in the prior art documents presented below.

However, in view of the conventional problems,

In the case of a file of a conventional hitting method, since it has a structure to install a file by hitting it by using a hammer or the like, the hitting noise and vibration cause complaints from residents near the construction site,

Particularly, in the case of a conventional screw type file, since the screw pierced with the ground is made of a hollow steel pipe for injecting grout, its tip is not easily punched into a normal pipe shape, There is a problem that the time and workability required to perforate the ground are significantly reduced due to the shape of the spiral, and the grouting is not easy in the state where the soil is blocked by the tip of the steel pipe and the pile is buried.

Korean Patent Laid-Open Publication No. 10-2004-0004961 (January 16, 2004) 'Basic File with Screws' is presented.

The present invention has been made to solve the above problems, and it is an object of the present invention to provide a spade for performing ground foundation work using a spiral file provided with a screw on the outer circumference of a steel pipe, The purpose of the present invention is to provide a geared spiral file which can reduce the time required to perforate the ground through the installation, thereby improving the working efficiency.

Further, according to the present invention, a plate for covering soil is installed in a spade provided at a lower part of a steel pipe, thereby preventing the ingress of soil into the steel pipe to prevent the passage of the grout from being blocked.

According to an aspect of the present invention,

A spiral file for foundation work of a foundation, comprising: a steel pipe into which a grout is injected through a flow path provided therein; A screw installed on the outer periphery of the steel pipe and spirally rotating in accordance with rotation of the steel pipe to penetrate the steel pipe into the ground; And

And a spade that is installed at a lower end of the steel pipe in a plate form and is erected at right angles to the ground to excavate the ground while rotating in the process of penetrating the steel pipe,
The steel pipe may further include a first blocking plate which is fixedly coupled to the lower end of the steel pipe to prevent the soil from flowing into the steel pipe and discharges the grout to the outside by using a discharge port penetrating the inside center,
Wherein the spade further comprises a configuration in which a sharp-edged chamfered portion is formed on both sides of a plate of a certain thickness, and the ground is excavated by the chamfered portion,
Wherein the chamfer portion is formed by being bent at an arbitrary angle in the rotating direction of the spade,
Wherein the spade further includes a groove formed with a fastening groove in which a steel pipe is inserted and fixed to an upper portion of the upper portion and a gap is formed in a lower portion of the fastening groove so as to provide a gap space below the steel pipe,
The gap groove is further comprised of a second blocking plate which is fixedly coupled to an inner lower end of the groove to secure the discharge passage of the grout while preventing the soil from flowing into the inside of the steel pipe,
The spade further includes a reinforcing bar that is fixedly coupled to the outer periphery of the steel pipe while supporting a side surface of the spade and supports the excavation load,
Wherein the reinforcing bar is formed in a plate shape and further includes two side surfaces adjacent to each other being in surface contact with the side surface of the spade and the outer circumference of the steel pipe and the contact portion is fixed and fastened,
Wherein the reinforcing bar further comprises a chamfer provided on the spade on an opposite surface at an angle,
Wherein the spade further comprises a secondary spade that is fixedly coupled to the lower end of the spade in an intersecting direction to excavate the ground with the spade,
Wherein the auxiliary spade further comprises a coupling groove and a gap groove having the same outer shape as the spade and formed with an insertion groove into which the lower end of the spade is inserted at a center of the auxiliary spade. File.

According to the present invention, since the space for excavating the ground is installed at the lower part of the steel pipe penetrated into the ground by the screw, the time required for piercing the ground is reduced, and the efficiency of the work is increased.

In addition, since the spade plate is installed on the spade, it is possible to prevent clogging of the discharge passage of the grout by blocking the inflow of soil into the inside of the steel pipe.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a spiral file for ground construction according to a first embodiment of the present invention; FIG.
2 is a cross-sectional view of a main portion of a spiral pile for ground installation according to a first embodiment of the present invention;
3 is a plan view of a spiral file for ground construction according to a first embodiment of the present invention.
4 is a view showing a spiral file for ground construction according to a second embodiment of the present invention.
5 is a view showing a spiral file for ground construction according to a third embodiment of the present invention.
6 is a view showing a spiral file for ground construction according to a fourth embodiment of the present invention.

The spiral file for ground construction according to the present invention will be understood by the following detailed embodiments with reference to the accompanying drawings.

In the following description of the exemplary embodiments of the present invention, a detailed description of components that are widely known and used in the art to which the present invention belongs is omitted, and unnecessary explanations thereof are omitted. It is to communicate the point more clearly.

FIGS. 1 to 6 are diagrams for explaining the structure of each part of a spiral file for ground construction according to each embodiment of the present invention.

The spiral pile for ground construction 1 will be schematically described as follows. A steel pipe 100 into which grout is injected, a screw 200 penetrating the steel pipe 100 into the ground, and a spade 300 for excavating the ground .

Hereinafter, as a basic configuration of the present invention, the configuration of each part according to the first embodiment will be described in detail with reference to FIG. 1 to FIG.

First, the steel pipe 100 comprises: And the grout is injected into the perforated portion of the ground through the flow path provided therein to perform the grouting work.

When the steel pipe 100 is made of a metal cylindrical pipe, a hollow channel 120 is provided inside and a grout for grouting is injected into the channel 120.

At this time, the steel pipe 100 can continuously connect a plurality of steel pipes 100 using a flange joining method in the process of penetrating the ground.

In addition, the steel pipe 100 is fixedly coupled to the lower end of the steel pipe 100 to prevent the soil from being introduced into the steel pipe 100, and to discharge the grout to the outside by using the discharge port 111 penetrating the inside center And further includes a first blocking plate 110.

The first blocking plate 110 is made of a circular plate and corresponds to the inner diameter of the steel pipe 100 and has a discharge port 111 formed at the center thereof as a through hole.

At this time, it is preferable that the first blocking plate 110 is fastened by welding while being inserted inside the lower end of the steel pipe 100.

Therefore, according to the present invention, since the first closure plate 110 having the discharge port 111 at the center is installed inside the lower end of the steel pipe 100, the soil generated in the process of the steel pipe 100 being penetrated into the ground becomes the steel pipe 100 to prevent the flow path 120, which is the injection path of the grout, from being blocked.

Meanwhile, the steel pipe 100 is grouted with the steel pipe 100 in a state where the steel pipe 100 penetrates the ground according to the selection of the construction site and the constructor, or after the steel pipe 100 is inserted into the ground , The steel pipe 100 is removed from the ground, and grouting can be performed in the perforation hole.

At this time, in the present invention, the steel pipe 100 is inserted into the ground to perform the grouting, but it is possible to remove the steel pipe 100 after construction if necessary.

The screw (200) comprises: And is formed as a spiral on the outer circumference of the steel pipe 100 and is adapted to spirally rotate the steel pipe 100 to penetrate the steel pipe 100 into the ground.

The screw 200 is made of a spiral plate made of a metal material and the screw 200 is welded or fitted or fitted to the outer periphery of the steel pipe 100 and welded to fix the steel pipe 100, And rotates in a corresponding manner.

At this time, the screw 200 may have a different pitch depending on the ground and the stratum before the operation, that is, the screw 200 having an appropriate pitch considering the ground and the stratum may be selectively used.

Accordingly, when the screw 200 of the present invention is formed as a spiral around the outer circumference of the steel pipe 100, the steel pipe 100 is naturally penetrated through the spiral of the screw 200 when the steel pipe 100 is rotated in place.

In addition, the spade 300 may include: The steel pipe 100 is installed in a plate shape at the lower end of the steel pipe 100 and is inserted upright at a right angle on the ground to excavate the ground while rotating in the process of penetrating the steel pipe 100.

It is preferable that the spade 300 has a roughly rectangular shape and a turning radius based on the size of the spade 300 is equal to or slightly larger than the outer diameter of the screw 200 and corresponds to the rotating operation of the steel pipe 100 So that they rotate in the same manner.

The spade 300 may further include a chamfer portion 310 formed on both sides of the chamfer portion 310, which is formed of a plate having an arbitrary thickness, and is sharpened downward.

The chamfer part 310 is a part integrally formed on both sides of the spade 300 in the form of a plate and has a structure in which the lower part has an inclined angle at which the spade 300 is concentrated at the center of the spade 300.

The chamfer part 310 may be formed by being bent at an arbitrary angle in the rotating direction of the spade 300.

At this time, as shown in FIG. 3, the chamfered portion 310 has a structure that is bent at an angle of 10 ° to 30 ° with respect to the center of the plane, and preferably has an angle of 10 °.

Further, the span 300 is rotated by the chamfered portion 310 at an angle to allow the ground to be excavated.

Therefore, since the chamfer part 310 provided at both sides of the spade 300 is formed to be bent at an arbitrary angle, the sponge 300 is excavated like an oblique slope so that the ground drilling efficiency is increased.

The spade 300 is formed with a fastening groove 320 through which the steel pipe 100 is inserted and fixed to the inside of the upper portion of the spade 300. A lower portion of the fastening groove 320 is formed below the steel pipe 100, The gap groove 330 is formed.

The coupling groove 320 is formed as a square groove at the upper center of the spade 300, and the size of the groove corresponds to the outer diameter of the steel pipe 100.

In addition, the gap groove 330 is formed as a square groove extending from the lower center of the coupling groove 320, and the groove is formed to be smaller than the coupling groove 320, And a jaw is formed between the gap grooves 330.

At this time, the lower end of the steel pipe 100 is attached to the jaw of the gap groove 330 and is seated in the joining groove 320, so that a spacing space due to the formation depth of the gap groove 330 is provided in the lower portion of the steel pipe 100 .

Therefore, according to the present invention, since the gap groove 330 is formed at an arbitrary depth below the steel pipe 100, the grout introduced from the steel pipe 100 can be discharged to the outside through the space of the gap groove 330 without clogging Effect.

The gap groove 330 further includes a second blocking plate 340 fixed to the inner lower end of the gap groove 330 to block the inflow of the soil into the inside of the steel pipe 100 and to secure the discharge passage of the grout .

The second blocking plate 340 is formed of a circular plate or a square plate and has a size corresponding to the width of the gap groove 330. The second blocking plate 340 is formed in the gap groove 330 In a state of being seated at the lower end of the frame.

Accordingly, since the present invention is horizontally installed at the lower end of the clearance groove 330 of the second barrier plate 340, the soil generated in the course of penetration of the steel pipe 100 into the ground is prevented from entering the inside of the clearance groove 330 It is possible to prevent the flow of the grout to some extent and to secure the discharge passage of the grout without clogging.

The configuration of each part according to the second embodiment of the present invention will be described in detail with reference to FIG. 4 is a side sectional view and a plan view of a spiral file according to the second embodiment.

The spade 300 is fixedly coupled to the outer circumference of the steel pipe 100 while supporting the side surface of the spade 300 to support the excavation load (Not shown).

The reinforcing bar 350 is formed in a plate shape and two side surfaces adjacent to each other are in surface contact with the side surface of the spade 300 and the outer circumference of the steel pipe 100, .

Further, the reinforcing bar 350 may further include a configuration in which the chamfered portion 310 provided on the spade 300 is provided on an opposite surface bent at an arbitrary angle.

As the reinforcing bar 350 is provided on the opposite surface of the chamfered portion 310 at an angle, it is possible to support the load in the opposite direction of excavation of the spade 300.

Accordingly, the present invention has the effect of preventing breakage of the spade 300 due to the ground strength during the excavation process due to the provision of the reinforcing bar 350 supporting the excavation load of the spade 300.

The configuration of each part according to the third embodiment of the present invention will be described in detail with reference to FIG. 5 is a side sectional view and a plan view of a spiral file according to a third embodiment.

The spade 300 is inserted into the spade 300 in the cross direction and fixedly coupled to the lower end of the spade 300 so that the spade 300 and the auxiliary spade 300, (360).

The auxiliary spade 360 has the same outer shape as the spade 300 and is provided with a coupling groove 320 and a gap groove 330. The bottom of the spade 300 is formed at the center of the auxiliary spade 360 And an insertion groove 361 to be fitted is formed.

At this time, the insertion groove 361 is a groove corresponding to the thickness of the spade 300, and the auxiliary spade 360 can also engage the above-described reinforcing bar 350.

Therefore, according to the present invention, since the auxiliary spades 360 are inserted into the spade 300 at an intersection, it is possible to efficiently reduce the time of the drilling operation by digging the ground at four points.

The configuration of each part according to the fourth embodiment of the present invention will be described in detail with reference to FIG. 6 is a side sectional view and a plan view of a spiral file according to a fourth embodiment.

According to the structure, a plurality of semicircular plates are provided on both sides of the spiral 300 of the spiral file 1 having the above-described structure as spiral, and spiral is rotated according to the rotation of the spade 300, And further includes a screw 370.

The spiral direction of the auxiliary screw 370 is formed to be the same as that of the screw 200. The auxiliary screw 370 is formed in a spiral shape by welding a semi-circular plate to both sides of the spade 300 by welding. Is preferable.

Accordingly, since the auxiliary screw 370 is spirally coupled to both sides of the spade 300, the ground excavation of the spade 300 can be more efficiently performed.

As described above. While the present invention has been particularly shown and described with reference to certain preferred embodiments thereof, it is to be understood that the terminology used herein is for the purpose of describing the present invention only and is not intended to limit the scope of the claims. But is not intended to,

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be easy for anyone to know.

And a second clogging plate 330. The first clogging plate 110 and the first clogging plate 110 are formed in the same manner as the first clogging plate 110. The first clogging plate 110, the channel 120, the screw 200, the spade 300, (340), a reinforcing bar (350)

Claims

As a spiral file for ground foundation work,
A steel pipe 100 into which grout is injected through a channel provided inside;
A screw 200 installed on the outer periphery of the steel pipe 100 and spirally rotating in accordance with the rotation of the steel pipe 100 to penetrate the steel pipe 100 into the ground; And
And a spade 300 installed in a plate shape at the lower end of the steel pipe 100 and being inserted upright at a right angle on the ground to excavate the ground while rotating in the course of penetration of the steel pipe 100,
The steel pipe 100 is fixed to the inside of the lower end of the steel pipe 100 to prevent the ingress of the soil into the inside of the steel pipe 100, And a blocking plate 110,
The spade (300) further comprises a chamfer portion (310) formed on both sides with a downwardly directed plate, the chamfer portion (310) being used to excavate the ground,
The chamfer part 310 may be formed by being bent at an arbitrary angle in the rotating direction of the spade 300,
The spade 300 is formed with a coupling groove 320 through which the steel pipe 100 is inserted and fixed to the inside of the upper portion of the spade 300. A lower portion of the coupling groove 320 is formed with a space And a gap groove (330) is formed,
The clearance groove 330 further includes a second blocking plate 340 fixed to the inner lower end thereof to prevent the soil from flowing into the inside of the steel pipe 100 and to secure the discharge passage of the grout ,
The spade 300 further includes a reinforcing bar 350 coupled to the outer periphery of the steel pipe 100 while supporting the side of the spade 300 and supporting the excavation load,
The reinforcing bar 350 is formed in the shape of a plate, and two side surfaces adjacent to each other are in surface contact with the side surface of the spade 300 and the outer circumference of the steel pipe 100, Further included,
The reinforcing bar (350) further includes a chamfered portion (310) provided on the spade (300) on an opposite surface at an angle,
The spade 300 further includes an auxiliary spade 360 which is fixedly coupled to the lower end of the spade 300 in an intersecting direction to excavate the ground with the spade 300,
The auxiliary spade 360 has the same outer shape as the spade 300 and is provided with a coupling groove 320 and a gap groove 330. The bottom of the spade 300 is positioned at the center of the auxiliary spade 360 Further comprising: an insertion groove (361) formed to be fitted in the spiral groove (361).

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