KR20190087254A - Earthquake-resistant foundation file comprising detachable socket and method of construction thereof - Google Patents

Abstract

The present invention relates to an earthquake-resistant foundation pile including a separable socket and a construction method thereof and, more specifically, to an earthquake-resistant foundation pile including a separable socket, capable of freely controlling the position of a socket for the improvement of horizontal resistance in accordance with the height of the ground, and a construction method thereof. The earthquake-resistant foundation pile comprises: a screw part formed in a spiral structure formed by twisting a flat material having a rectangular cross section, and having a sharp lower part to be easily inserted into the ground; a support part having a structure aligned on the same axis as the screw part, integrated with the upper part of the screw part to have a structure extended to the upper part of the screw part to form a pile body along with the screw part, and having the upper part exposed on the ground when the screw part is inserted into the ground; and a socket made of a hollow body having upper and lateral sides closed except the bottom to be filled with soil when pressed into the ground, and comprising at least one flow hole formed on the upper surface to reduce press-in resistance by discharging some of the soil flowing therein when pressed into the ground, and a combination hole formed in the center of the upper surface to allow the support part to go therethrough in a vertical direction to control the position in accordance with the height of the ground by moving up and down along the support part.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an earthquake-resistant foundation file including a detachable socket,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a foundation pile used to form a foundation structure of a ground installation structure such as a solar power generation facility or a fence, and more particularly, And a separable socket for installing the socket at an optimum depth for enhancing the horizontal resistance, as well as a method of constructing the same. .

Generally, when a structure such as a photovoltaic power generation facility or a fence is installed on the ground, a method of forming a concrete foundation on the ground where the structure is installed, or fixing the structure using a foundation pile installed in the ground is used .

FIG. 1 is a sectional view showing a state in which a photovoltaic power generation facility is installed.

The photovoltaic power generation facility comprises a solar module 10 and a plurality of struts 20 for supporting the solar module 10 so that the solar module 10 is positioned at a certain height from the ground in a predetermined posture, Thereby fixing the struts 20 to the base 30.

In the case of supporting the structure using the concrete foundation, it is possible to secure a stable supporting force with respect to the vertical and horizontal directions. However, in order to form the concrete foundation on the ground, excavation of the ground, formwork installation, frame installation, concrete casting, , And soiling, etc., are required, thereby increasing the work process and time.

On the other hand, when the structure is supported by the foundation file, it is not required to form concrete foundation such as excavation of the ground, formwork installation, frame installation, concrete casting, concrete curing, But has a problem in that it is vulnerable to the horizontal force or shear force applied in the horizontal direction.

A basic file that solves the problems of the conventional basic file is disclosed in Patent Document 1, and Fig. 2 shows a perspective view of the basic file.

The foundation pile disclosed in Patent Document 1 has a shaft portion 41 having a sharp bottom end, a first helix portion 42 formed at a lower end portion of the shaft portion 41, and a second helical portion 42 formed at the upper end portion of the shaft portion 42 A cylindrical portion 44 arranged to be positioned between the head portion 43 and the first helix portion 42 and a cylindrical portion 44 fixed to the shaft portion 41 And a coupling portion 45.

In the case of the basic file constructed as described above, the problem of the conventional foundation file can be solved by strengthening the resistance against the horizontal force and the shearing force of the cylindrical portion buried in the ground.

On the other hand, in order for the cylindrical portion 44 to function properly according to the design value, it is preferable that the foundation pile is constructed such that the cylindrical portion 44 is located at a predetermined depth (designed depth) from the ground surface.

However, in the case of a structure having a long length such as a fence, it is difficult to accurately position the cylindrical portion at the designed depth due to the difference in height of the ground at the position where the support is installed.

In addition, the cylindrical portion disclosed in Patent Document 1 compensates for the horizontal resistance by using the structural feature of the cylindrical portion formed to have a relatively larger diameter than the shaft portion. Considering the resistance generated when the cylindrical portion is buried in the ground, There is a problem in that the horizontal resistance can not be improved to a certain level or more because it can not be made larger than a certain level.

Japanese Patent Application Laid-Open No. 10-2016-0071805 (published on June 22, 2016)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide an earthquake-resistant foundation file including a detachable socket capable of freely adjusting a position of a socket for improving horizontal resistance, .

Another object of the present invention is to provide an earthquake-resistant foundation file including a detachable socket which further improves horizontal resistance provided by a socket, and a method of construction thereof.

According to an aspect of the present invention, there is provided a flat plate member having a rectangular cross-section, the plate member being formed to have a twisted structure so as to have a spiral structure. A sharpened screw part; The upper end of the screw portion is integrally formed with the upper end of the screw portion to have a structure that is coaxially aligned with the screw portion and has a structure extending to the upper portion of the screw portion to form a pile body together with the screw portion, Exposed housewife; And a hollow body having a side surface and a top surface closed except for a bottom surface and being formed so as to fill the inside of the soil when the soil is press-fitted. On the upper surface, a part of the soil, Wherein the socket is formed at a central portion of the upper surface and is vertically movable along the support portion so that the position of the socket can be adjusted according to the height of the ground. And an earthquake-resistant foundation file.

Meanwhile, in the seismic resistant base file including the detachable socket, one or more auxiliary wings may be formed on the outer surface of the socket so as to protrude outward from the socket and to be horizontally buried together with the socket to increase the horizontal resistance.

On the other hand, in the seismic resistant foundation file including the separable socket, the auxiliary vane may be curved in a curved shape.

Meanwhile, in the seismic resistant base file including the separable socket, a plurality of connecting members connecting the upper surface and the side surface of the socket are further formed inside the socket, and the plurality of connecting members are uniformly dispersed in the circumferential direction of the socket , Each connecting member may be configured such that the inner end facing the grounding portion contacts the grounding portion and the inner circumferential surface of the separable socket is spaced apart from the grounding portion by a predetermined distance.

Further, the present invention provides a method for constructing an earthquake-resistant foundation pile comprising the step of fixing a pile body to a ground by striking or pressing an upper end portion of a pile body composed of a screw portion and a pillar portion to insert the screw portion into the ground S10); (S20) connecting the socket to the supporting portion so that the strut portion of the pile body fixed to the ground passes through the coupling hole of the socket; Inserting the socket into the ground at a desired depth by striking or pressing the upper end of the socket coupled to the pile body (S30); And a step (S40) of fixing a structure to be installed to a ground part exposed to the ground after inserting the socket into the ground (S40).

According to the present invention having the features as described above, since the file body and the socket can be inserted up to the intended depth, it is possible to easily mount the socket with the optimized depth to improve the horizontal resistance regardless of the height difference of the ground So that it is possible to provide a stable base structure.

Further, the auxiliary blade formed on the outer side of the socket further increases the horizontal resistance of the socket, thereby not only providing a more stable foundation structure but also using the auxiliary support, which is required to be installed at every predetermined length of the fence There is an effect that can be excluded.

In addition, the connecting member formed on the inside of the socket is embedded in the soil buried in the inside of the socket so that the socket can be more firmly fixed to the ground. In particular, So that the horizontal force or the shearing force can be more effectively responded to.

1 is a sectional view showing a state in which a photovoltaic power generation facility is installed,
2 is a perspective view of a conventional foundation file,
3 is a perspective view of an anti-vibration base file according to a preferred embodiment of the present invention,
4 is a front view of an anti-vibration base file according to a preferred embodiment of the present invention,
5 is a perspective view of a socket further comprising an auxiliary wing and a connecting member according to the present invention,
6 is a front view of a socket further comprising an auxiliary wing and a connecting member according to the present invention;
7 is a bottom view of a socket further including an auxiliary blade and a connecting member according to the present invention,
8 is an exemplary view showing a process sequence for constructing an earthquake-resistant foundation file according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 3 is a perspective view of an earthquake-resistant foundation file according to a preferred embodiment of the present invention, and FIG. 4 is a front view of an earthquake-resistant foundation file according to a preferred embodiment of the present invention.

The earthquake-resistant foundation pile according to the present invention comprises a pile body 100 including a screw 110 and a pile 120 and a pile 110 that is coupled to the pile body 100 in a detachable manner, And a socket 200 for increasing the height.

The screw part 110 is inserted into the ground to be fixed and forms a lower end of the pillar body 100. The screw part 110 has a rectangular cross section or a flat cross section and has a length corresponding to the length of the screw part 110 And an elongated flat plate material having a length is twisted and twisted so as to have a spiral structure.

The lower end of the screw portion 110 is formed to be sharpened so that it can be easily inserted into the ground.

The support portion 120 is formed above the screw portion 110 to form an upper end portion of the pile body 100, which is connected to a structure exposed by the ground and fixed by the foundation pile.

The hollow portion 120 may be a hollow pipe or a solid rod. The upper portion of the screw portion 110 is coaxially aligned with the screw portion 110 and forms an integral structure with the screw portion 110. .

3 and 4 illustrate a structure for coupling with the structure, that is, a flange or a fastening hole 121. In FIGS. 3 and 4, a plurality of fasteners 120 passing through the fastener 120 in the horizontal direction And a fastening hole 121 is formed.

As described above, the fastening holes 121 formed at the upper end of the support portion 120 can be used to fix the column of the fence to the support portion 120. That is, the fence column is connected to the fence post 120 by inserting the fence post into the lower end of the fence post so that the bolt passes through the fastening hole 121 while the fence post 120 is inserted into the lower end of the fence post. do.

The file body 100 constructed as described above is constructed by repeatedly striking or pressing the upper end portion of the support portion 120 in a state where the file body 100 is placed in a vertical posture at a position where construction of the foundation file is required Can be constructed.

The socket 200 is further provided on the pile body 100 fixed to the ground to increase the horizontal resistance of the pile. The socket 200 is made of a hollow body having a closed side and a top surface excluding the bottom, A coupling hole 201 through which the support 120 penetrates is formed at the center of the upper surface and one or more flow holes 202 are formed around the coupling hole 201. [

The flow hole 202 induces a part of the soil introduced into the socket 200 to be discharged back to the upper portion of the socket 200 during the insertion of the socket 200 into the ground, ) Is inserted in the ground.

The socket 200 may be a hollow body having a circular or polygonal cross section, and the socket 200 according to the preferred embodiment of the present invention is formed in a cylindrical shape with its bottom open.

The socket 200 thus formed is inserted into the ground by striking or pressing in a state in which the support portion 120 of the pod body 100 fixed to the ground is arranged to penetrate the coupling hole 201, Is inserted to a depth.

Since the socket 200 according to the present invention has a separate structure from the pile body 100, the socket 200 can be easily inserted into the pile 200 when the socket 200 is inserted into the pile 200 after the pile body 100 is installed. So that it is possible to construct the socket 200 with a design depth regardless of the height difference of the ground.

Fig. 5 is a perspective view of a socket further comprising an auxiliary wing and a connecting member according to the present invention, Fig. 6 is a front view of a socket further comprising an auxiliary wing and a connecting member according to the present invention, Fig. And a bottom view of the socket further comprising a wing and a connecting member.

The socket 200 may further include one or more auxiliary vanes 210 for further increasing the horizontal resistance of the socket 200.

The auxiliary blade (210) is formed of a vertical plate formed to protrude outward from the outer surface of the socket (200). The auxiliary blade (210) is curved like a circular arc or a waveform to increase the contact area with the earth As shown in FIG.

The plurality of auxiliary wings 210 may be spaced apart from each other in the circumferential direction of the socket 200.

In addition, the auxiliary vane 210 may be formed such that the lower end portion thereof is inclined inward or outward so as to reduce the resistance generated in the process of inserting the socket 200 into the ground.

The file body 100 and the socket 200 act independently of each other in the vertical direction and the file body 100 and the socket 200 more stably move together in the horizontal direction A connection member 220 may be further formed to connect the file body 100 and the socket 200 to each other.

The plurality of connecting members 220 are formed at a predetermined distance from each other in the circumferential direction of the socket 200 from the inside of the socket 200, So as to form an arrangement structure in which two connecting members 220 face each other.

The connecting member 220 connects the upper surface and the side surface of the socket 200 to each other to improve the structural rigidity of the socket 200. The connecting member 220 has an inner end portion 220a facing the grounding portion 120, (Not shown).

The inner end portion 220a of the connection member 220 contacting the support portion 120 is formed to extend in the axial direction of the support portion 120 so as to be in contact with the support portion 120 for a predetermined interval .

According to the connecting member 220, the upper end portion and the lower end portion of the inner circumferential surface of the socket 200 are always kept at a constant distance from the support portion 120.

The socket 200 can not completely prevent the file body 100 from tilting when the file body 100 and the socket 200 are coupled only by the coupling hole 201. On the other hand, When the file body 100 and the socket 200 are coupled by the connecting member 220 and the connecting member 220 when the file body 100 tends to be tilted, It can be prevented.

That is, when the file body 100 tends to be tilted by the horizontal force acting on the structure, the movement of the pile body 100 is directly transmitted to the socket 200 through the connecting member 220. The socket 200 having a diameter larger than that of the grounding part 120 is fixed to the ground with a large binding force so that the socket 200 is kept fixed regardless of the movement of the pile body 100 transmitted through the connecting member 220 So that the file body 100 is prevented from tilting.

8 is a view showing an example of a process sequence for constructing an earthquake-resistant foundation file according to a preferred embodiment of the present invention.

The method of constructing the earthquake-resistant foundation file according to the present invention for constructing the earthquake-resistant foundation file according to the present invention as described above is characterized in that the upper end portion of the file body 100 composed of the screw portion 110 and the support portion 120 is struck or pressed (S10) fixing the file body (100) to the ground by inserting the screw part (110) into the ground; (S20) coupling the socket (200) to the supporting portion (120) so that the support portion (120) of the pile body (100) fixed to the ground passes through the coupling hole (201) of the socket (200); A step S30 of inserting the socket 200 into the ground at a desired depth by striking or pressing the upper end of the socket 200 coupled to the pod body 100; And a step S40 of coupling and fixing a structure to be installed to the ground support 120 exposed to the ground after the socket 200 is inserted into the ground.

The step S10 may be performed by repetitively hitting or pressing the upper end portion of the support portion 120 in a state where the file body 100 is disposed in a vertical posture at a position where construction of the foundation file is required.

The pile body 100 is inserted while being rotated by the resistance generated between the screw part 110 and the gravel in the process of inserting the pile body 100 into the ground by the blow or press fit, Can be easily inserted into the ground as well as being firmly fixed.

When the pile body 100 is installed on the ground such that the pile 110 is inserted and fixed to the ground, the pile main body 120 formed on the top of the pile 110 is protruded from the ground by about 30 cm. 100) on the ground.

Step S20 is a step performed after the installation of the file body 100. In step S10, the socket 200 is connected to the support part 120 of the pile body 100 installed on the ground, As shown in FIG.

At this time, in a state where the opened bottom of the socket 200 faces the ground, the socket 200 is vertically installed, and the socket 200 is inserted into the socket 200 through the insertion hole 201 formed in the upper surface of the socket 200, 200 are disposed.

The step S30 is a step of inserting and fixing the socket 200 into the ground and the pipe P having an inner diameter larger than the diameter of the grounding part 120 and having a length longer than the grounding part 120, The socket 200 is inserted into the ground in such a manner that the upper end of the pipe P protruded to the upper portion of the support portion 120 is hit or pressed.

When the socket 200 is inserted into the ground, the operator inserts the socket 200 in consideration of the height of the ground of the installation site so that the socket 200 is located at a designed depth.

As described above, since the base pile including the detachable socket according to the present invention can appropriately adjust the depth at which the socket 200 installed to improve the horizontal resistance is installed in consideration of the floor height of the site, Can be induced.

Further, since the auxiliary wing 210 formed on the outer side of the socket 200 and the connecting member 220 formed on the inner side are embedded in the gravel so that the socket 200 is more effectively restrained from moving in the horizontal direction, The resistance can be further improved.

In step S40, after the installation of the socket 200 is completed, a structure S to be installed is fixed to the support part 120. In FIG. 8, a fence post made of a hollow pipe is inserted into the support part 120, In the state shown in Fig.

As described above, since the earthquake-resistant foundation file including the detachable socket 200 according to the present invention is formed in a detachable structure of the file body 100 and the socket 200 and is independently installed on the ground, The basic file can be installed in a structure optimized for the field condition by varying the depth at which the file body 100 and the socket 200 are installed.

Further, the auxiliary wing and the connecting member 220 formed on the socket 200 further increase the horizontal resistance of the socket 200, so that even when a large horizontal vibration is generated in a structure such as an earthquake, .

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 in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

Description of the Related Art
100: File body 110: Screw part
120: Socket 200: socket
201: coupling hole 202: flow hole
210: auxiliary blade 220: connecting member

Claims (5)

A screw part 110 formed by twisting a flat plate member having a rectangular cross section so as to have a spiral structure and having a sharp bottom end to facilitate insertion into the ground;
Is integrally formed on the upper end of the screw part 110 so as to have a structure aligned on the same axis as the screw part 110 and extended to the upper part of the screw part 110, 100), and includes a circumferential portion (120) where an upper end of the screw portion (110) is exposed to the upper side of the paper when the paper is inserted into the ground; And
The upper surface of which is formed with a hollow body with the side surface and the upper surface closed except for the bottom surface and is filled with the soil when the soil is press-fitted, and at least one flow hole And an engagement hole 201 is formed at the center of the upper surface to allow the support portion 120 to pass through in the vertical direction. The engagement hole 201 is vertically moved along the support portion 120, Wherein the socket (200) comprises a socket (200) made to be able to be inserted into the socket (200). The method according to claim 1,
And one or more auxiliary wings (210) protruding outwardly from the socket (200) on the outer surface of the socket (200) and being embedded in the ground together with the socket (200) to increase horizontal resistance. An earthquake-resistant foundation file comprising a socket (200). The method of claim 2,
Wherein the auxiliary wing (210) is curved in a curved shape. ≪ RTI ID = 0.0 > 31. < / RTI > The method according to claim 1,
A plurality of connecting members 220 connecting the upper surface and the side surface of the socket 200 are further formed inside the socket 200,
The plurality of connecting members 220 are uniformly dispersed in the circumferential direction of the socket 200. Each connecting member 220 has an inner end portion 220a facing the grounding portion 120, And the inner circumferential surface of the detachable socket (200) is kept in a spaced-apart relationship with the support (120) while being in contact with the support (120). In constructing the earthquake-resistant foundation pile including the detachable socket according to any one of claims 1 to 4,
A step S10 of fixing the pile body 100 to the ground by inserting the screw part 110 into the ground by striking or pressing the upper end of the pile body 100 composed of the screw part 110 and the piercing part 120, ;
(S20) coupling the socket (200) to the supporting portion (120) so that the support portion (120) of the pile body (100) fixed to the ground passes through the coupling hole (201) of the socket (200);
A step S30 of inserting the socket 200 into the ground at a desired depth by striking or pressing the upper end of the socket 200 coupled to the pod body 100; And
(S40) of fixing a structure to be installed to a ground supporting part (120) exposed to the ground after inserting the socket (200) into the ground (S40). .

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