JPH10221079A - Buried pile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a buried pile whose piling operation can be performed, whose transport and execution are simple and which can be corrected easily even when the buried pile is turned during its piling execution. SOLUTION: A buried pile is composed of a pile body 2 which is made of a resin and which is buried in the ground and of a pile head 3 which is fixed and bonded to the upper end of the pile body 2 and which is made of a refractory. The pile head is fixed and bonded in such a way that a hole (a shaft hole) or a shaft (a connection shaft) is formed at the upper end of the pile body 2, that a shaft or a hole is formed on the rear surface of the pile head 3, that the shaft 30 is fitted to the hole 20 and that their fitting faces are bonded by an adhesive. It is desirable that the shaft and the hole are made freely ratable before their fitting faces are bonded by the adhesive so as to be capable of being corrected even when the pile body 2 is turned during a piling operation. When a recessed place 24 to which the top part of the pile body 2 is fitted is formed on the rear surface of the pile head 3, the fixing and bonding strength of the shaft to the hole can be increased. It is preferable that the pile head 3 is made of concrete. It is preferable that the shaft 32 is made of iron and that its upper part is formed so as to be buried in the pile head 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buried pile mainly buried in the ground as a landmark.

[0002]

2. Description of the Related Art Conventionally, concrete piles have been used as buried piles used as boundary piles. This concrete pile is heavy, and a construction method of digging a hole and burying it is adopted. For this reason, it is inconvenient to carry and has the drawback that it is artificial. In recent years, from the viewpoint of cost reduction and man-made saving, plastic piles, which are formed mainly by reusing waste plastics, are lightweight, and can be driven by driving, are frequently used as buried piles.

[0003]

However, the plastic pile is light in weight and strong, so that it can be driven in and has a strong advantage against corrosion. However, it is weak against fire and rotates when hitting a stone or the like during driving. There's a problem. For this reason, there has been a defect that a portion exposed to the ground due to fire, such as burning in a field or the like, disappears, making it difficult to confirm the boundary, or a case in which an accurate position cannot be indicated due to rotation during driving.

[0004] It is an object of the present invention to provide a buried pile which can be driven, is easy to transport and execute, and can be easily corrected even if the buried pile is rotated during the driving.

[0005]

The buried pile according to the present invention comprises a pile body made of resin and buried in the ground, and a refractory pile head fixed to the upper end of the pile body. For fixing, a hole (shaft hole) or shaft (connection shaft) is provided at the upper end of the pile body, a shaft or hole is formed on the lower surface of the pile head, the shaft and the hole are fitted, and the fitting surface is bonded with an adhesive. It is done by bonding.

The hole or shaft at the upper end of the pile and the shaft or hole at the lower surface of the pile head are rotatable before bonding with an adhesive so that the pile can be corrected even if it rotates during the driving operation. It is desirable to keep. By providing a recess in the lower surface of the pile head into which the top of the pile is fitted, the fixing strength can be increased. The pile head is made of concrete, and the shaft is preferably made of iron and the upper part is buried in the pile head.

[0007]

According to the present invention, the pile body is made of resin and is lightweight and tough, so that it can be easily transported and can be installed by driving. Further, since the pile head can be fixed to the pile portion in a desired direction after the pile body is driven, it is easy to specify an accurate position even when the pile body rotates against a stone or the like during the driving operation. Further, since the pile head exposed on the ground is made of a refractory material, it is possible to reliably prevent the problem of burning out due to open burning or the like.

[0008]

FIG. 1 shows a buried pile 1 according to the present invention.
The pile body 2 is made of a resin and buried therein, and a pile head 3 having refractory properties fixed to the upper end of the pile body 2. Pile 2
Has a cylindrical shape in this embodiment, and has a wedge surface 21 from the lower end.
A small-diameter portion 22, a tapered portion 23, a large-diameter root portion 24, and a column portion 25 that is slightly smaller in diameter than the root portion 24 and occupy about 60% of the entire length are provided. I have.

The pile head 3 comprises a refractory block 31 having a square planar shape, and a connecting shaft 32 protruding from the center of the lower surface thereof. A predetermined mark (cross in this embodiment) 33 is engraved on the upper surface of the block 31. Mark 33
Any desired one such as an arrow, a T-shape, or a single character can be used. The connecting shaft 32 projects from the center of a circular recess 34 formed on the bottom surface of the block 31 and has a diameter that fits into the shaft hole 20 of the pile 2. The circular concave portion 34 is
Is set to a size in which the top 26 is fitted.

The pile 2 is made of P.P. E (polyethylene), P.E.
It is made of a resin such as P (polypropylene), hard vinyl chloride, or a composite thereof, and a discarded plastic can be used. The use of waste plastic
It is recommended especially from the viewpoint of reusing resources and eliminating industrial waste disposal problems. A wedge surface 21 and a tapered portion 23 at the lower end
Is provided for the sake of convenience of the driving work, and the large-diameter root portion 24 has an action of preventing detachment.

The block 31 can be made of a refractory such as concrete, cement mortar, brick, tile, etc., but is preferably made of concrete from the viewpoint of production cost. The connecting shaft 32 is desirably made of iron in terms of strength, but may be hollow or may be a protrusion formed of the same material as the block 31. Further, the connection shaft 32 may be protruded from the top surface of the pile 2, and in this case, the connection shaft 32 may be made of iron, or may be a projection formed of the same material as the pile 2. .

The construction of the buried pile 1 is performed as follows.
First, as shown in FIG. 2, the pile 2 is driven into the designated ground G. Next, as shown in FIG. 3, the top 26 of the pile 2 is fitted into the recess 34, the connecting shaft 32 is fitted into the shaft hole 20, and the fitting surface is bonded with an adhesive such as a vinyl acetate resin adhesive. I do. Until the adhesive is hardened, the pile head 3 is rotatable, so that the position can be corrected accurately. After setting the position, the lower part of the pile head 3 is buried in the ground and the upper part is buried so as to be exposed on the ground (see FIG. 3).

FIG. 4 shows another embodiment. In this embodiment, the pile 4 has a quadrangular prism shape, and has a conical portion 4 from the lower end.
1, a prism portion 42, a large-diameter square head 43, and a column-shaped top portion 44. The prism portion 42 has an axial reinforcing rib 4
5 are provided. The buried pile of this embodiment also has the same operation and effect as in FIG.

[Brief description of the drawings]

FIG. 1 is an assembly diagram of a buried pile.

FIG. 2 is a construction drawing.

FIG. 3 is a perspective view of a buried pile.

FIG. 4 is an assembly diagram of a buried pile according to another embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 buried pile 2, 4 pile 3 pile head 20 shaft hole 26 top 32 connecting shaft 34 recess

Claims (5)

[Claims] 1. A buried pile comprising a pile body made of resin and buried in the ground, and a refractory pile head fixed to an upper end of the pile body. 2. The fixing device according to claim 1, wherein a hole or a shaft is provided at an upper end of the pile body, a shaft or a hole is formed on a lower surface of the pile head, and the shaft and the hole are fitted and the fitting surface is formed. A buried pile made by bonding with an adhesive. 3. The method according to claim 2, wherein the hole or shaft at the upper end of the pile body and the shaft or hole at the lower surface of the pile head are rotatably fitted before bonding with an adhesive. Buried pile. 4. The method according to claim 3, wherein:
A buried pile, wherein a recess into which the top of the pile is fitted is provided. 5. The buried pile according to claim 1, wherein the pile head is made of concrete, and the shaft is made of iron whose upper part is buried in the pile head.