KR101668870B1

KR101668870B1 - Concrete pile for structure foundation

Info

Publication number: KR101668870B1
Application number: KR1020160024679A
Authority: KR
Inventors: 김재욱
Original assignee: (주)에이치디엔지니어링건축사사무소
Priority date: 2016-02-29
Filing date: 2016-02-29
Publication date: 2016-10-24

Abstract

The present invention relates to a concrete pile for a building foundation, which is provided with a rigidity to prevent the breakage of the breakaway protrusion protruding to the outside of the concrete pile, It is an object of the present invention to improve the workability by linking the reinforcement means and the anti-reverse key.
The concrete foundation concrete pile according to the present invention comprises: a pile main body (10); (20) inserted into the pile body so as to protrude outward at regular intervals along a circumferential direction; And a head reinforcement means (30) inserted in the inside of the file main body and fixed to the head of the file main body while protruding the detachment prevention key to the outside of the file main body, wherein the file main body includes a plurality of longitudinal reinforcing bars And a reinforcing steel reinforced with reinforcing steel reinforced with a reinforcing steel reinforced with a reinforcing steel reinforced with a reinforcing steel reinforced with a reinforcing steel, And a mortar injection hole (12) formed so as to communicate with the main body (21). The conduction protector includes a three - dimensional deterioration prevention key body (21), an inclination part (22) formed at an inner end of the conduction prevention key body, The mortar filling grooves 2 are formed in the shape of an annular groove at the periphery of the mortar filling hole to fill the mortar to be injected through the mortar injection holes, 3), wherein the head reinforcement means comprises a lower plate 31, a reinforcing bar 32 fixed to the lower plate at the bottom and protruding from the upper portion of the pile main body, The bottom plate has a conical pressing part 34 having a tapered cross section at its bottom part to protrude to the outside through the pressing part and the inclined part.

Description

{CONCRETE PILE FOR STRUCTURE FOUNDATION}

More particularly, the present invention relates to a concrete pile for a building foundation, more particularly, to a pile of a concrete pile, which is provided with a rigidity to prevent a breakage of a protrusion protruding from the concrete pile And to improve the workability through linkage of the head reinforcement means and the detachment prevention key.

In general, when bridges and buildings are constructed, the foundation is constructed to increase the strength of the ground.

Basic construction refers to the foundation of a structure. When the structure is constructed on the ground, the vertical load due to the structure's own weight and the horizontal load applied to the structure by the earthquake and the wind are transmitted to the ground. To form a workpiece.

This type of construction includes pile designation (concrete file, designation of pile of wood, concrete designation of concrete, design of concrete pile, etc.), designation (designation of rubble, designation of sand, Designation, etc.).

Conventional foundation piles are classified into two types: a type-based method in which piles are forced into the ground when the construction methods are roughly classified, a method in which concrete is poured into the concrete piles after the ground is excavated, A rotary penetration method is used in which a groove is formed and the pile is rotated by engaging with a rotary penetrator.

Concrete piles have a large supporting force for the compressive force of the vertical load due to the characteristics of the concrete but have a disadvantage that the rigidity against the horizontal load is weak.

Patent Document No. 10-0583880 discloses a method of cutting a concrete file upper end portion completely to a steel wire provided at an edge at one time by using a predetermined cutting means, A cap which is formed in the inner space of the pile and has a predetermined diameter and an edge of which is cut at one side and a wing which is formed at the edge of the body and which is folded separately, A plurality of reinforcing bars spaced apart from each other by a predetermined distance so as to protrude upward from the upper end portion of the pile through the edge of the cap and a concrete injection port through which the concrete passes, And at least a plurality of reinforcing bars Wherein the cap includes a pile cap assembly that is configured to be supported by the pile as the back edge of the pile extends over the upper surface of the pile and the circumferential surface of the pile has no protrusions As a general structure, there is no supporting force on the horizontal load, and the base conduction may occur.

Patent No. 10-0583880

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a concrete pile having a rigidity to prevent the breakage of a protrusion protruding out of a concrete pile And to improve the workability through linkage of the head reinforcement means and the anti-fall prevention key.

The concrete foundation concrete file according to the present invention comprises: a file body; A detachment key inserted into the pile body so as to protrude outward at predetermined intervals along a circumferential direction; And a head reinforcement means inserted in the inside of the file main body and fixed to the head of the file main body while protruding from the outside of the file main body. The file main body includes a plurality of longitudinal reinforcing bars and a plurality of transverse reinforcing bars The reinforced concrete reinforcing bar is inserted in the center and holes are formed in the center of the reinforced concrete reinforcing bar. The reinforced concrete reinforcing bars are formed in a radial shape, Wherein the protrusion prevention key is inserted into a non-conductive key mounting hole of the pile main body and has an inclined portion at an end thereof, and protrudes to the outside of the pile body by the descent of the head reinforcement means, , An annular groove formed in the periphery of the conduction prevention key body, A reinforcing bar reinforced with the upper portion of the reinforcing bar and the lower reinforcing bar being fixed to the lower plate and the upper portion of the reinforcing bar being protruded to the upper portion of the pile main body; Wherein the lower plate has a conical pressing part having a tapered cross section at a bottom thereof to protrude to the outside through the pressing part and the inclined part, .

According to the concrete foundation pile file of the present invention, the pile body exhibits a compressive force against a vertical load, and the conduction prevention key prevents conduction of the pile body against a horizontal load, Since the key does not protrude to the outside of the file body when the main body of the file is constructed, it does not cause the damage of the prevention key during transportation and construction. Therefore, there is an effect of reducing the loss of the concrete pile. The key is projected to the outside, so that the construction is very easy and the effect of preventing the fall by the anti-fall key is maximized.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a construction concrete concrete pile according to the present invention; FIG.
2 is a cross-sectional view of the concrete file for building foundation according to the present invention before the anti-reverse key is protruded.
3 is an exploded perspective view showing an example in which an anti-fall key applied to a concrete foundation pile according to the present invention is installed through a fall prevention key base.
Fig. 4 is a sectional view according to Fig. 3; Fig.
5 is a view showing another example of an anti-reverse key applied to a concrete foundation pile file according to the present invention.

As shown in FIGS. 1 and 2, a building concrete foundation pile 100 according to the present invention includes a pile main body 10 made of concrete; A detachment key 20 protruding from the inside of the file main body 10; And a head reinforcement means 30 provided at a head portion of the file main body 10. The head protecting key 20 is inserted into the file main body 10 when the file main body 10 is installed And is naturally protruded to the outside of the pile body 10 by the provision of the head reinforcing means 30. [

The file body 10 has a hollow tubular shape with a space formed therein, and is constructed by placing reinforcing bars (longitudinal bars and band bars) (not shown in the drawings) inside and then placing concrete therein.

The file body 10 includes a non-conductive key mounting hole 11 and a mortal injection hole 12.

A plurality of the detachment key mounting holes 11 are formed so that the inside and the outside of the file main body 10 communicate with each other at regular intervals along the circumferential direction so that the detachment key 20 is mounted. (Circular, rectangular, square, or the like) according to the shape of the base 20.

The mortar injection hole 12 is formed (circular, etc.) so as to communicate from the head portion of the pile body 10 to the anti-detachment key mounting hole 11, and by the injection of the mortar, As shown in Fig.

The detachment prevention key 20 includes a detachment key body 21 formed in a three-dimensional shape such as a rectangular parallelepiped or a circle, an inclined portion 22 formed at an end of the detachment prevention key body 21, And a slip-fitting groove 23 formed in the main body 10 to be slidably mounted to the keyhole 11 of the main body 10.

The anti-fall prevention key body 21 is made of metal or concrete.

The inclined portion 22 is formed so as to be inclined downwardly toward the center of the pile main body 10 at the end portion of the detachment prevention key body 21 and is inclined downwardly by the inclined pushing portion of the head reinforcing means 30, (20) is moved in a transversal direction orthogonal thereto.

The mortar filling groove 23 is formed in the shape of an annular groove in the periphery of the detachment key body 21 to fill the mortar to be injected through the mortar injection hole 12 of the pile body 10.

The mortar filling groove 23 is formed to have a larger size than the outlet of the mortar injection hole 12 in consideration of the movement of the conduction preventing key 20 so that the mortar is injected even when the conduction preventing key 20 moves.

The conduction preventing key 20 can maintain the protruding state from the pile body 10 by the mortar and the head reinforcing means 30 filling the mortar filling groove 23, It is also possible to construct a filling hole filled with concrete placed in a pile hole.

The head reinforcing means 30 is installed on the head of the file body 10 to reinforce the head of the file body 10 and to integrally combine the file body 10 and the concrete placed on the upper portion of the file body 10 The reinforcing bar 32 is fixed to the top of the pile main body 10 and the reinforcing bar 32 is fixed to the top of the pile main body 10 while the bottom portion is fixed to the bottom plate 31, And a conical pushing portion 34 is formed at the bottom of the lower plate 31 to project the detachment prevention key 20 to the outside of the pile body 10.

The lower plate 31 is a circular plate inserted into the inside of the file main body 10 and functions as a finishing plate for concrete placed inside the file main body 10. In the present invention, As shown in FIG.

The reinforcing bars 32 are composed of a plurality of longitudinal reinforcing bars fixed to the bottom plate 31 by welding or the like at the bottom while being spaced apart from each other at regular intervals along the circumferential direction and a multistage band reinforcing bar welded to the longitudinal reinforcing bars do.

The top plate 33 is mounted on the upper surface of the file main body 10 in a ring shape so that concrete is placed inside the file main body 10 and a skirt that surrounds the outer peripheral surface of the file main body 10 is formed at the edge, The longitudinal reinforcing bars of the reinforcing bars 32 are fixed through.

FIG. 1 is a view showing a state in which the head reinforcing means 30 is installed in the file main body 10 and thus the head protecting key 20 is protruded to the periphery of the file main body 10. FIG. Is not installed in the file main body 10 and does not protrude from the periphery of the file main body 10 in the case where the malfunction prevention key 20 is not protruded.

The construction method of the concrete foundation pile according to the present invention is as follows.

1. File holes.

The concrete pile of the present invention is installed in the ground for the foundation work for the construction of the building, and the pile is first drilled in the ground by using the punching machine.

2. Concrete file installation.

The concrete file 100 is a state in which the detachment prevention key 20 is inserted into the detachment prevention key fitting hole 11 of the file main body 10 Insert it into the mounting hole and insert it into the hole. The anti-spill key 20 is disposed inside the file body 10 with the inclined portion 22 (see FIG. 2).

3. Install the head reinforcement.

After the installation of the file main body 10, the head reinforcing means 30 is inserted into the inside of the file main body 10.

When the head reinforcing means 30 is lowered and the pressing portion 34 of the head reinforcing means 30 presses the slope portion 22 of the conduction preventing key 20, the conduction preventing key 20 moves in the lateral direction, And protrudes outside the main body 10.

4. Concrete pouring.

The foundation of the building is completed by arranging the head of the concrete pile (10) and placing the concrete.

3, 4 and 5 show another example of the concrete pile according to the present invention, in which a plurality of the anti-decay keys 20 are installed through one base 40 and the head reinforcement means 30 It is characterized by a solid installation.

In the file body 10, guide rails 13 having a certain depth are formed on the inner peripheral surface in the vertical direction. The guide rail 13 is formed on the inner peripheral surface of the file main body 10 toward the center of the file main body 10 and the anti-warp key 20 corresponds to the non-conductive key mounting hole 11 of the file main body 10 So that the base 40 is seated.

The base 40 has a base body 41 installed on the upper surface of the base body 41 so as to move in a direction crossing the circumference of the circumference of the base body 41, And a guiding jaw 42 slidably protruding from the guide rail 13 of the main body 10.

The base body 41 is in the form of a ring having a hole therein so that the pressing portion 34 of the head reinforcing means 30 passes downward.

For example, as shown in FIG. 5, a guide groove 43 is formed on the upper surface of the base body 41. The guide groove 43 is formed on the upper surface of the base body 41, And a guide rod 24 is formed at the bottom of the detachment prevention key 20 so that the detachment key 20 is guided by the guide rod 24 and the guide groove 43 through the path of the file body 10, As shown in FIG.

The base 40 is seated on the guide rail 13 to support the bottom plate 31 of the head reinforcement means 30 at the bottom portion with the file body 10 as a support base to prevent the head reinforcement means 30 from being separated .

A plurality of the anti-tamper keys 20 are inserted into the inside of the file body 10 together with the base 40 while being put on the base 40. At this time, And is naturally provided to correspond to the entrance of the non-conductive key mounting hole 11 of the pile body 10. [0050] As shown in Fig.

As described above, when the head reinforcement means 30 is provided, the pushing portion 34 pushes the slope portion 22 of the conduction prevention key 20 to push the conduction prevention key 20 to the side, 20 are inserted into the anti-scattering key mounting holes 11, and the tip ends thereof protrude to the outside of the pile main body 10.

10: File body, 11: Anti-fall prevention key mounting hole
12: mortar injection hole, 13: guide rail
20: anti-reverse key, 21: anti-reverse key body
22: inclined portion, 23: mortar filling groove
24: guide hole, 30: head reinforcing means
31: bottom plate, 32: rebar
33: upper plate, 34:
40: base, 41: base body
42: guide chin

Claims

A file body 10;
(20) inserted into the pile body so as to protrude outward at regular intervals along a circumferential direction;
And a head reinforcement means (30) inserted in the inside of the file main body and fixed to a head portion of the file main body while protruding the detachment key to the outside of the file main body,
The main body of the file includes a plurality of reinforcing bars each having a plurality of longitudinal bars and a plurality of transverse reinforcing bars assembled therein. The reinforcing bars are disposed in the center of the reinforcing bars, And a mortar injection hole (12) formed to communicate with the anti-detachment key mounting hole from the head,
The electromagnetism prevention key comprises a three-dimensional anti-reverse key body (21), an inclined part (22) formed at the inner end of the anti-reverse key body, an annular groove formed in the periphery of the anti- And a mortar filling groove (23) filled with a mortar to be injected through the hole to maintain a protruded state to the outside of the pile body,
The head reinforcement means comprises a lower plate 31, a reinforcing bar 32 fixed to the lower plate at the bottom and protruding to the upper portion of the pile main body, and an upper plate 33 The bottom plate has a conical pressing part 34 having a tapered cross section at a bottom thereof to protrude to the outside through the pressing part and the inclined part,
The file body includes a guide rail (13) having a certain depth on the inner circumferential surface, and a plurality of the conduction prevention keys are mounted on the file body through the base movably mounted on one base in a direction crossing the circumference, The base includes a base body 41 having a ring shape penetrating the inside of the body and having the top surface thereof movably mounted on the top surface of the base body 41. The base body 41 is slidably provided on the guide rail of the pile body at the periphery thereof. And a jaw (42).

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