KR20090006672A - Pile and wall using thereof - Google Patents

Abstract

A pile and a retaining wall using the pile are provided to construct a retaining wall more simply with the existing pile, to prevent the outflow of soil by increasing the binding strength between piles forming a retaining wall, and to maximize the resistance to shear force. A pile(10) is formed in the shape of a cylinder having a hole at the center and provided with a groove portion(11) and a projection portion(12) axially on the outer circumference. The pile, as a concrete structure having a reinforcing bar and a strand for introducing compressive force, is a PHC(pretensioned spun high strength concrete) pile formed by centrifugal casting in a mold, is formed to have a circular cross section having a hollow, has various shapes like a circular shape, an elliptical shape, a rectangular shape, a triangular shape, etc. except a circular shape, and is used for any piles constructed to the ground, not only for a PHC pile.

Description

PILE AND WALL USING THEREOF}

The present invention relates to piles for soil reinforcement. More specifically, the present invention relates to a piled spun high strength concrete (PHC) pile using high strength concrete and a retaining wall formed by the pile.

In general, when the ground is soft during the construction of bridges and buildings, piles are installed on the ground to increase the strength of the ground.

In particular, the PHC pile is a hollow high strength concrete pile produced using centrifugal force. The PHC pile can be constructed using a hammer and the like, and has great bending resistance, and thus has excellent resistance to both vertical and horizontal forces.

However, PHC piles are satisfactory for general construction structures, but are not suitable for construction as walls in areas where ocher pressure is expected.

Therefore, in the prior art, when constructing a wall for the purpose of preventing the collapse of the soil behind, it is necessary to separately install a structure for constituting the wall together with the pile, and the pile is also installed in the form of a concrete box that is placed in the field.

This provides a pile and retaining wall using the same that can serve as a foundation and a wall in itself.

To this end, the pile may have at least one recessed portion and a convex portion corresponding to the recessed portion.

By coupling the convex portions of the other pile to the recess formed in one side of the pile it is possible to connect a plurality of piles.

The retaining wall may have a structure in which a recess and a convex are formed in a pile, and a plurality of piles are connected by combining recess and concave portions of a neighboring pile.

The recessed portion and the convex portion may be formed along the axial direction on the outer circumferential surface of the pile.

In addition, the pile may be arranged alternately with the recessed portion and the iron portion along the outer peripheral surface.

In addition, the pile may be formed at a position in which the recessed portion and the iron portion are symmetrical with each other in the central axis of the pile.

In addition, the recessed portion and the convex portion may have a cross-sectional structure having a dovetail shape.

The recesses and convexities of the neighboring piles are engaged with each other to increase the bonding force and prevent gaps between the piles.

In this way, the retaining wall can be more easily constructed with the pile, and the binding force between the piles forming the retaining wall can be prevented to prevent soil leakage and maximize the resistance to shear force.

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 may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

It is noted that the figures are schematic and not drawn to scale. The relative dimensions and ratios of the parts in the figures have been exaggerated or reduced in size for clarity and convenience in the figures. And the same reference numerals are generally used to indicate corresponding or similar features in other embodiments.

1 is a perspective view of a pile according to an embodiment of the present invention.

According to FIG. 1, the pile 10 according to the present exemplary embodiment has a cylindrical shape having a hole formed at a center thereof, and the recess 11 and the convex part 12 are disposed on the outer circumferential surface thereof in an axial direction.

In this embodiment, the pile 10 is a concrete structure provided with a steel wire for introducing the reinforcement and compressive force therein, the PHC pile is centrifugally formed in the formwork. The pile has a circular cross section having a hollow portion, and has various shapes such as oval, square, triangle, etc. in addition to the circular shape. Of course, this pile is not limited to the PHC pile and will be applied to all the piles of any structure that is constructed on the ground.

As shown in FIG. 2, the recessed part 11 and the iron part 12 formed on the outer circumferential surface of the pile 10 have a shape corresponding to each other, and in this embodiment, has a cross-sectional structure having a dovetail shape. have.

Here, the dovetail shape is a shape that is processed so that the angle between the front side and the side is an acute angle, and refers to a structure that does not fall out when the male and female are engaged with each other.

In addition, in the present embodiment, the recess 11 and the convex portion 12 are each formed one by one, and are disposed at an angle of 180 degrees on the outer circumferential surface of the pile 10.

The pile 10 can be manufactured without additional equipment by using the formwork having the form of recesses and convex portion in the existing equipment.

3 shows a retaining wall according to the present embodiment.

As shown in FIG. 3, in the retaining wall 20 according to the present exemplary embodiment, the recesses 11 and the convex portions 12 formed in the piles 10 are continuously arranged in rows and adjacent to the adjacent piles 10, respectively. Structure.

The retaining wall 20 may be connected to a pile having recesses and convex portions disposed on the outer circumferential surface of the retaining wall 20 as in the present embodiment. In addition to this structure, the retaining wall may be a structure in which piles having only recesses and piles having only iron portions are alternately disposed, and the iron portions of the piles adjacent to the recesses of one side pile are engaged with each other.

As mentioned, the recessed part 11 and the convex part 12 do not have a simple concave-convex shape but a dovetail shape, so that the convex part is inserted from the concave part so that they do not fall out.

Thus, between the pile 10 and the pile 10 is bound by the recess 11 and the iron portion 12 it is possible to prevent the gap between the two piles. In addition, the recessed portion and the iron portion are coupled to each other to maximize the coupling force between the pile and the pile. Therefore, the retaining wall can increase the rigidity against the lateral shear force applied to the retaining wall by integrally moving the pile group constituting the retaining wall.

4 illustrates another embodiment of the pile.

The pile 30 shown in FIG. 4 has a structure in which concave portions 31 and convex portions 32 corresponding to each other are alternately formed along the outer circumferential surface.

The number of formations of the recess portion 31 and the convex portion 32 is not particularly limited. In this embodiment, the number of recesses and convex portions are formed in the same structure.

As described above, the recess portion 31 and the convex portion 32 have a shape corresponding to each other, and in this embodiment, has a cross-sectional structure having a dovetail shape.

5 and 6 illustrate a retaining wall according to another embodiment.

The retaining wall 40 according to the present embodiment has a recess 31 formed along the outer circumferential surface of the pile 30 in which the recess 31 and the iron portion 32 are continuously arranged in rows, and formed on the neighboring pile 30, respectively. And the convex portion 32 have a structure coupled to each other.

The retaining wall may be connected to a pile formed with a recess and a convex portion continuously formed on an outer circumferential surface thereof. In addition to this structure, the retaining wall may have a structure in which only the recesses are continuously formed along the outer circumferential surface and the piles continuously formed only on the iron parts are alternately arranged, and the iron parts of the piles adjacent to the recesses of the one side stake are coupled to each other.

Accordingly, as shown in FIG. 6, the pile 30 and the pile 30 are bound by the recess 31 and the iron part 32 to prevent the occurrence of a gap between the two piles. In addition, the recessed portion and the iron portion are coupled to each other to maximize the coupling force between the pile and the pile. Therefore, the retaining wall can secure the rigidity against the lateral shear force applied to the retaining wall.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the range of.

1 is a perspective view of a pile according to an embodiment of the present invention.

2 is a cross-sectional view taken along the line A-A of FIG. 1 according to an embodiment of the present invention.

3 is a perspective view showing the retaining wall is coupled to the pile according to an embodiment of the present invention.

4 is a perspective view of a pile according to another embodiment of the present invention.

5 is a perspective view illustrating a retaining wall to which a pile is coupled according to another embodiment of the present invention.

6 is a cross-sectional view taken along the line B-B of Figure 5 according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10,30: pile 11,31: main part

12,32: iron 20,40: retaining wall

Claims (7)

A pile having at least one recessed portion and an iron portion corresponding to the recessed portion formed on an outer circumferential surface thereof. The method of claim 1, The pile is a pile in which the recessed portion and the iron portion are alternately disposed along the outer circumferential surface. The method of claim 1, The pile is a pile formed in a position in which the recessed portion and the iron portion are symmetrical with each other in the central axis of the pile. The method according to any one of claims 1 to 3, The recess and the iron portion is a dovetail (dovetail) cross-sectional structure. A retaining wall in which at least one recess and at least one recess formed on the outer circumferential surface are formed in a row, and piles are continuously arranged, and recesses and iron portions respectively formed at neighboring piles are coupled to each other to form a wall. The method of claim 5, wherein The pile is a retaining wall in which recesses and iron portions are alternately disposed along an outer circumferential surface thereof. The method according to claim 5 or 6, The recessed portion and the convex portion are retaining walls having a cross-sectional structure having a dovetail shape.

Images