JP2023016396A - Reinforcement material - Google Patents

Abstract

To provide a reinforcement material capable of improving workability during installation and removal.SOLUTION: A reinforcement material 10 is connected to a pile 20 to be driven into the ground by a pile hammer 150. The reinforcement material 10 includes a bottom part 12 and auxiliary part 51. The bottom part 12 is connected to the top of the pile 20. The auxiliary part 51 assists the connection between the bottom part 12 and the top of the pile 20. The area of the bottom part 12 is larger than the area of the top of the pile. On the top of the pile 20, multiple pile joints 221 are provided for the pile hammer 150 to grip. The bottom part 12 has mounting holes 121 at positions corresponding to the pile connecting parts 221. The auxiliary part 51 and the bottom part 12 sandwich the top of the pile 20. The auxiliary part 51 has a holding part 511 that holds the connector 40 that penetrates the pile connecting part 221 and the mounting hole 121 to connect the pile 20 and the reinforcement material 10.SELECTED DRAWING: Figure 2

Description

The present invention relates to stiffeners.

The pile overturning prevention device described in Patent Document 1 has a substantially cylindrical pile through-hole, is embedded in the ground on one side of the substantially cylindrical hole, and is embedded in the ground through the pile through-hole. prevent piles from falling over.

Japanese Patent Application Laid-Open No. 2021-42572

The pile collapse prevention device described in Patent Document 1 needs to be partially embedded in the ground, and when removing the pile, it is difficult to restore the surroundings. Poor workability.

The present invention has been made in view of the above problems, and an object thereof is to provide a reinforcing member capable of improving workability during installation and removal.

The reinforcement according to the invention is connected to piles driven into the ground by a pile driver. The stiffener includes a bottom portion and an auxiliary portion. The bottom is connected to the top of the pile. The auxiliary part assists the connection between the bottom part and the top part of the pile. The area of the bottom is greater than the area of the top of the pile. The top of the pile is provided with a plurality of pile connections for the pile driver to grip. The bottom has mounting holes at positions corresponding to the stake connections. The auxiliary part and the bottom part sandwich the top part of the pile. The auxiliary part has a holding part that holds a connecting tool that passes through the pile connecting part and the mounting hole and connects the pile and the reinforcing member.

Preferably, the stiffener further comprises an upper portion and side portions. Preferably, the top portion is fixed above the bottom portion. Preferably, the side portion connects the bottom portion and the top portion and is provided perpendicular to the bottom portion and the top portion. Preferably, the number of sides is at least three.

It is preferable that the bottom portion side of the side portion and the center side of the bottom portion be missing.

It is preferable that a part of the outer periphery of the auxiliary part contacts the pile.

According to the present invention, it is possible to improve workability during installation and removal.

It is a figure which shows the protective fence using the reinforcing material which concerns on embodiment of this invention. Fig. 2 shows a strut with stiffeners according to an embodiment of the invention; FIG. 10 shows a pile; It is a side view which shows a reinforcement. It is a bottom view which shows a reinforcement. It is a figure which shows the detail of an auxiliary|assistant part. It is a figure which shows driving of a pile. FIG. 4 shows a pile driven into the ground; It is the figure which looked at the reinforcing material and pile which connect from the side of a pile. It is a figure which shows the protective fence using the reinforcing material which concerns on embodiment of this invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

A protective fence 100 using a reinforcing member 10 according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram showing a guard fence 100 using reinforcing members 10 according to an embodiment of the present invention.

The protective fence 100 is provided, for example, to prevent animals from entering the field. The protective fence 100 is composed of a plurality of posts (pile foundations) 110 and a protective fence 120 . Specifically, a protective fence 120 is installed above the plurality of columns 110 arranged side by side.

In order to stably install the protective fence 100, it is desirable to drive the posts 110 deeply into the ground. In order to drive the post 110 deeply into the ground, it is necessary to lengthen the post 110, which deteriorates portability, workability, and the like.

In addition, even if the underground part of the support 110 is short, it is conceivable to improve the stability of the protective fence 100 by hardening the surroundings with concrete or the like, or by burying a member that prevents the pile from collapsing in the ground. However, when removing the protective fence 100, there are disadvantages such as difficulty in restoring the surroundings, and workability is also poor when removing the support 110. - 特許庁

Alternatively, in order to improve the stability of the protective fence 100, a method of increasing the contact area between the support 110 and the ground by providing the support 110 with a reinforcing portion 140 is conceivable.

If the reinforcing part 140 is simply provided, the portability of the column 110 is deteriorated. In this embodiment, the reinforcing portion 140 is an example of the reinforcing member 10 .

Next, with reference to FIG. 2, the strut 110 provided with the reinforcing member 10 according to the embodiment of the invention will be described. FIG. 2 shows a strut 110 with a stiffener 10 according to an embodiment of the invention. Specifically, FIG. 2 shows a pile 20 to which a stiffener 10 is connected.

The strut 110 includes a reinforcing member 10 and piles 20 . The pile 20 is, for example, a metal round pile. The pile 20 corresponds to the underground portion of the support 110 and is driven into the ground. The stiffener 10 is connected to the pile 20 .

Next, the pile 20 and the reinforcing member 10 will be described with reference to FIGS. 2 to 6. FIG. FIG. 3 is a diagram showing the pile 20. As shown in FIG. FIG. 4 is a side view showing the reinforcing member 10. FIG. FIG. 5 is a bottom view showing the reinforcing member 10. FIG. FIG. 6 is a diagram showing the details of the auxiliary section 51. As shown in FIG. In FIGS. 2 to 6, in order to make the drawings easier to see, there are cases where only some of the overlapping parts are given reference numerals.

As shown in FIG. 3 , the pile 20 has a body portion 21 and a pile head 22 . For example, the main body 21 is threaded, and when the pile 20 rotates in one direction, it is buried in the ground. The pile head 22 is a disk-shaped portion provided at the upper end of the body portion 21 . The diameter of the pile head 22 is, for example, slightly larger than that of the body portion 21 . The top of the pile head 22 is provided with a plurality of pile connection portions 221 to be gripped by a pile driver 150, which will be described later. FIG. 3 shows a case where eight pile connection portions 221 are provided. The pile connection portion 221 is a hole penetrating the pile head 22 . Moreover, the pile connection portion 221 has a shape that expands in the radial direction of the pile head 22 .

As shown in FIGS. 4-6, the stiffener 10 comprises a top portion 11, a bottom portion 12, four side portions 13 and four auxiliary portions 51. As shown in FIGS. When the stiffener 10 is connected to the stake 20, the bottom 12 contacts the ground. The bottom part 12 is, for example, a metal disk having a larger area than the top of the pile head 22 . The bottom portion 12 has mounting holes 121 at positions corresponding to the stake connection portions 221 . The mounting hole 121 has, for example, a shape that expands in the circumferential direction of the bottom portion 12 . The width in the radial direction of the bottom portion 12 of the mounting hole 121 is such that a connection tool 40 (bolt 41), which will be described later, passes through.

The top part 11 is for example a metal cylinder fixed above the bottom part 12 . A protective fence 120 is installed on the upper surface of the upper part 11 . Note that the upper portion 11 and the bottom portion 12 may not be parallel. The shape of the upper portion 11 may be a shape other than a cylinder such as a prism.

Four side portions 13 are provided between the bottom portion 12 and the top portion 11 and perpendicular to the bottom portion 12 and the top portion 11 respectively. The side portion 13 has an outer edge connecting the edge of the bottom portion 12 and the edge of the top portion 11 .

For example, the space between bottom 12 and top 11 is hollow.

The inside of the side portion 13 is connected to the side surface of the upper portion 11 . In addition, between the lower end of the upper portion 11 and the bottom portion 12, the inside of the side portion 13 is chipped toward the outside to widen the cavity.

For example, in order to ensure the strength of the reinforcing member 10 , it is desirable that the diameter of the circle connecting the inner ends of the contact surfaces of the side portions 13 with the bottom portion 12 is smaller than the diameter of the pile head 22 .

The auxiliary part 51 assists the connection between the bottom part 12 and the pile head 22 . As shown in FIG. 6, the auxiliary portion 51 is a rectangular flat plate. In this embodiment, a portion M1 of the outer circumference of the auxiliary portion 51 contacts the main body portion 21 . 2 to 6, the number of auxiliary portions 51 provided on the reinforcing member 10 is four, but may be three or less or five or more.

Specifically, the auxiliary portion 51 has a holding portion 511 . The holding portion 511 is a screw hole located in the central portion of the auxiliary portion 51 and holds the connector 40 (bolt 41). For example, the length L2 from the holding portion 511 to the outer circumference part M1 is equal to the length from the mounting hole 121 to the outer circumference of the main body portion 21 . Also, for example, the length L1 from the holding part 511 to the opposite side of the part M1 of the outer circumference is shorter than the length L2 and equal to the length from the mounting hole 121 to the outer circumference of the pile head 22 . Note that the length L1 may be the same as the length L2. If a part M1 of the outer circumference is in contact with the body portion 21, the strength of the pile 20 is increased.

The reinforcement member 10 and the pile 20 are connected by a connector 40 . The connector 40 is, for example, a bolt 41 and a nut 42 . Specifically, the positions of the pile connection portion 221 of the pile head 22, the mounting hole 121 of the bottom portion 12, and the holding portion 511 are aligned, and the pile head 22 is sandwiched between the auxiliary portion 51 and the bottom portion 12, and the holding portion 511 The reinforcement member 10 and the pile 20 are fixed by passing the bolt 41 from the side and tightening the bottom 12 side on the opposite side with the nut 42 .

Next, with reference to FIGS. 7 to 9, a method for installing the support 110 will be described. The method of installing the support 110 is to first drive the piles 20 into the ground and then connect the reinforcing members 10 to the piles 20 .

Next, the driving of the pile 20 will be described with reference to FIGS. 7 and 8. FIG. FIG. 7 is a diagram showing the driving of the pile 20. FIG. FIG. 8 shows a pile 20 driven into the ground.

For example, pile 20 is driven into the ground using pile driver 150 . The pile driver 150 has a support portion 151 that supports the pile 20 driven into the ground, and a rotating portion 152 that fixes the top of the pile head 22 and rotates the pile 20 . For example, the rotary portion 152 is provided with one or more mounting holes 153 at positions corresponding to the pile connection portions 221 . The size of the attachment hole 153 is such that the bolt 41 can pass therethrough, for example. Note that the number of mounting holes 153 is the number of auxiliary portions 51 provided in the reinforcing member 10 .

When driving the pile 20 into the ground, first, the pile head 22 , the rotating portion 152 and the auxiliary portion 51 are connected by the connector 40 . Specifically, the positions of the pile connection portion 221 of the pile head 22, the mounting hole 153 of the rotating portion 152, and the holding portion 511 are aligned, and the pile head 22 is sandwiched between the auxiliary portion 51 and the rotating portion 152, and the holding portion A bolt 41 is passed through from the 511 side, and a nut 42 is tightened on the rotating portion 152 side on the opposite side.

When the rotating part 152 rotates while the pile head 22, the rotating part 152, and the auxiliary part 51 are connected, the pile 20 is buried in the ground while rotating in one direction. As the pile 20 is buried in the ground, the rotating portion 152 moves downward along the support portion 151 . When the rotating part 152 moves to the lower end of the supporting part 151, the driving of the pile 20 is completed. After that, the nut 42 is removed and the pile driver 150 is removed from the pile 20, as shown in FIG.

Next, the connection between the reinforcing member 10 and the pile 20 will be described with reference to FIG. FIG. 9 is a side view of the reinforcing member 10 and the pile 20 to be connected, viewed from the side of the pile 20. FIG.

The reinforcement member 10 and the pile 20 are connected by a connector 40 . Specifically, the reinforcing member 10 is brought close to the pile 20 from above the pile 20 and the bolt 41 is passed through the mounting hole 121 of the bottom portion 12 . After that, the reinforcement member 10 and the pile 20 are connected by tightening the reinforcement member 10 on the opposite side with the nut 42 . At this time, if a part M1 of the outer periphery of the auxiliary portion 51 is in contact with the body portion 21, idle rotation of the bolt 41 and the auxiliary portion 51 can be prevented.

Here, since the mounting hole 121 has a shape that expands in the circumferential direction of the bottom portion 12 , the reinforcing member 10 can rotate around the pile 20 with the bolt 41 passing through the mounting hole 121 . Thereby, the direction of the reinforcing member 10 can be adjusted with the pile 20 as the rotation axis.

In the present embodiment, the upper portion 11 is assumed to be cylindrical or prismatic, but is not limited to this and may be cylindrical, for example. A ground part 30 such as a pole may be connected to the tubular upper part 11, for example. Specifically, the ground portion 30 may be inserted into the cylindrical upper portion 11 and fixed from the outside of the upper portion 11 with bolts or the like.

Next, another example of the protective fence will be described with reference to FIG. FIG. 10 is a diagram showing a protective fence 101 using reinforcing members 10 according to an embodiment of the present invention.

The protection fence 101 is composed of a plurality of posts 110 to which the ground part 30 is connected, a protection net 160 and wires 130 . Specifically, a protective net 160 for preventing birds from entering is stretched on the upper side of the ground section 30 connected to each of the plurality of posts 110, and a wire 130 for preventing entry of animals is stretched on the lower side of the ground section 30. It is

Also, for example, two ground parts 30A and 30B may be connected to the upper part 11 in parallel with each other. When the two ground parts 30A and 30B are fixed in parallel to the upper part 11, the strength against the wind from a specific direction is increased.

In this embodiment, when the reinforcing material 10 and the pile 20 are fixed using the connecting tool 40, if the space between the bottom part 12 and the upper part 11 is hollow, a space for moving a tool or the like is created, and workability is improved. improves.

In addition, the space between the bottom part 12 and the upper part 11 may not be hollow. Specifically, the inside of the side portion 13 does not have to be chipped between the lower end of the upper portion 11 and the bottom portion 12 . However, in this case, workability deteriorates as described above.

Although the number of side portions 13 is four in this embodiment, the number of side portions 13 is not limited to four. However, in order to stabilize the strut 110 in any direction, the number of side portions 13 should preferably be three or more.

The embodiments of the present invention have been described above with reference to the drawings (FIGS. 1 to 10). However, the present invention is not limited to the above-described embodiments, and can be embodied in various aspects without departing from the scope of the invention. It is mainly shown schematically, and the thickness, length, number, etc. of each constituent element shown are different from the actual ones for the convenience of drawing. In addition, the material, shape, dimensions, etc. of each component shown in the above embodiment are examples and are not particularly limited, and various changes are possible within a range that does not substantially deviate from the effects of the present invention. be.

INDUSTRIAL APPLICABILITY The present invention can be used in the field of pile foundations.

10: Reinforcing member 11: Upper part 12: Bottom part 13: Side part 20: Pile 21: Body part 22: Pile head 30: Ground part 40: Connector 51: Auxiliary part 121: Mounting hole 150: Pile driver 221: Pile connection Part 511: Holding part M1: Part of outer circumference

Claims (4)

A reinforcement connected to a pile driven into the ground by a pile driver,
The reinforcing material is
a bottom connected to the top of the pile;
An auxiliary portion that assists the connection between the bottom portion and the top portion of the pile,
The area of the bottom is larger than the area of the top of the pile,
A plurality of pile connection parts for gripping by the pile driver are provided at the top of the pile,
The bottom portion has a mounting hole at a position corresponding to the pile connection portion,
The auxiliary part and the bottom part sandwich the top of the pile,
The reinforcing member, wherein the auxiliary portion has a holding portion that holds a connector that penetrates the pile connecting portion and the mounting hole and connects the pile and the reinforcing member. The reinforcing material is
a top portion secured above the bottom portion;
a side portion connecting the bottom portion and the top portion and provided perpendicular to the bottom portion and the top portion;
2. The stiffener of claim 1, wherein the number of sides is at least three. 3. The stiffener of claim 2, wherein the bottom side of the side portion and the center side of the bottom portion is missing. The reinforcing member according to any one of claims 1 to 3, wherein a part of the outer circumference of the auxiliary part contacts the pile.

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