JPH093884A - Pile for civil construction work - Google Patents

Abstract

PURPOSE: To improve the stability in the ground by providing a plurality of openings in a side wall of a hollow pile body and mounting a core body, in which a plurality of wedge bodies are disposed, in the pile body so that the wedge bodies are engaged with the openings. CONSTITUTION: A core body 5, to which a plurality of wedge bodies 6 and inner drive bodies 7 are attached, is put into a leading pile body 2 from a top opening thereof. And the body 5 is pushed as far as a point where the forward end of the body 6 of the body 5 contacts an opening 4 of the body 2 so as to be engaged therewith to form a pile for use in a civil construction work. And in the construction work, the pile is inserted into the ground from the forward end direction of the body 2 and the body 5 is then pushed to move it in the forward direction and the body 6 is protruded outward from the opening 4 so as to be inserted obliquely into the ground. And when the pile is driven deeply into the ground, a joint pile body 2' is connected to the body 2 through a connector 3 and a core body 5' is pushed to cause the body 6 to protrude from the opening 4 into the ground.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pile for civil engineering work used for revetment work, road work, or foundation work for construction and construction. In particular, it relates to a civil engineering work pile that has a core body with a wedge body inside, and to a civil engineering work pile that has never existed before. The present invention relates to a civil engineering work pile that can also be used as a working pile.

[0002]

[Previous technology] There are various types of conventional civil engineering work piles. For example, a cylinder with a conical tip, one with a triangular shape, one with a triangular overall shape and a sharp tip, and further with a cylindrical lower part, There are various other members, for example, those having a disc body attached thereto, or those having a horizontal bar simply attached to the lower portion of the column member. Most of the materials for these civil engineering construction piles are made of concrete or iron. Not only civil engineering work piles made of concrete material, but also civil engineering work piles made of other materials have a core body with a wedge body inside the pile body, , Pile for civil engineering work, which is configured to prevent the wedge body of the core body from piercing into the soil on the slope or vice versa and preventing the pile for civil engineering work from coming out,
Nothing has been found in the past, other than the application filed by the inventor who invented this civil engineering work pile.

[0003]

The conventional civil engineering work piles have various shapes and sizes. And the material was mostly made of concrete or iron. The most popular piles for civil engineering work are formed in a cylindrical pyramidal shape or a cylindrical shape. When using such piles for civil engineering work for revetment work on rivers, coasts, or roads,
The civil engineering work pile was used by driving it diagonally or vertically. This also applies to civil engineering work for construction and construction. For this reason, even if a pile for civil engineering work is struck in a place where the soil quality is fragile or on a soft ground, the pile itself may not be stable, may shake, or may slip out of the ground. Even in a hard place, the civil engineering work pile has a drawback that it may shake or pop out over time. Also in terms of earthquake resistance, the existing civil engineering work piles were still unstable. If the piles for civil engineering work are swaying, unstable, or protruding in this way, the construction is dangerous, and there is a considerable risk even after the completion of construction, which is inconvenient. . The present invention is intended to provide a pile for civil engineering work which can improve such drawbacks and inconveniences and can maintain a more stable state in soil. Further, in the civil engineering work pile according to the present invention, in the civil engineering work pile previously performed by the same inventor, the wedge body attached to the core body mounted in the pile body is located at the symmetrical position of the symmetrical side surface of the core body side surface. Since they are attached in the same manner, the intervals between the wedges are narrowed, which sometimes makes attachment difficult. Therefore, it is also an object of the present invention to solve this drawback and provide a pile for civil engineering work in which the wedge body can be easily attached to the core body and mounted in the pile body.

[0004]

In order to solve the above-mentioned drawbacks and inconveniences, one end is formed into a conical or pyramidal shape, the other end is open and has a connecting portion, and the inside is hollow. In the pile body, which is formed on the side wall and has a plurality of openings slightly closer to the left side or the right side than the central portion, a plurality of wedge bodies having sharp-edged tips are formed on the pedestal of the core body. Pile for civil engineering work as a leading pile body, which is attached to the four corners of each part in a state of being symmetrically offset from each other and has a core body formed with wedge bodies having long and short shapes (Hereinafter, referred to as a leading pile body) is used alone, or in this leading pile body, an inner cavity is open at both ends and one end side is a fitting part, and the other end side has a connecting part. It also has a plurality of openings on the side wall, slightly to the left or right of the center. In the pile body where is provided, a plurality of wedge bodies whose tips are formed in an acute angle are attached to the four corners of the pedestal portion of the core body in a state where they are symmetrically offset from each other, and the shape of the wedge body is Pile for civil engineering work (hereinafter referred to as joint pile body) as a joint pile body in which a core body having a wedge body having a long and short shape and a medium hitting body having an appropriate length is attached. Civil engineering work piles that are combined with each other, and civil engineering work piles that have wedge body guide pocket metal fittings at the openings of the combined civil engineering work piles, prismatic civil engineering work piles, lead piles and joint piles. Pile for civil engineering work, which has an opening at the connecting part and an opening at one end side of the joint pile body, and the pedestal part of the core body is prismatic, and the wedge body is the pedestal part of the core body. The four wedges are attached to the four corners symmetrically and offset from each other, and the wedges are formed to be long and short. Civil engineering work piles with the corners of the seat cut off, wedges with a corrugated or bow shape, and multiple notches on both side walls or one side wall of the wedge body. It is solved by using the provided civil engineering work pile. The present invention thus seeks to provide an entirely new civil engineering work pile that has never been seen before.

[0005]

[Operation] This invention can be used as a pile for civil engineering work by itself as a pile for civil engineering work, but can be used for revetment work, road construction, and construction / construction work. Just like the piles for civil engineering work (lead piles) with the attached core body, the piles for civil engineering work with the core body having a plurality of wedge bodies and medium hit bodies inside the pile body ( Joint pile body) is formed by coupling, and in that case, the tip of each wedge body is mounted so as to engage with the opening pile body inside end provided on the pile body side wall. There is something. Therefore, first, the tip of the pile for civil engineering work is driven into the soil. After driving the civil engineering work pile up to the required limit, apply a suitable material, such as a log material, a column material or a prismatic material, to the opening at the other end of the civil engineering work pile. By hitting, the core body mounted inside the civil engineering work pile is driven in the tip direction of the civil engineering work pile. By doing so, the first core body moves in the direction of the tip, and at the same time, is fixed to this core body, and the tip of the opening is provided on the side wall slightly to the left or right of the center of the pile body. The wedge body attached to the inner end of the pile body moves into the soil from the opening. At the same time, the medium hitting body provided in the first moving core body presses the core body provided in the tip pile body, so that the core body provided in the tip pile body moves. As a result, the wedge body provided on the core body sequentially projects into the soil through the opening of the pile body. Then, the closer the core body is to the tip of the wedge body, the deeper and diagonally it is stabbed into the soil. In addition, when driving the civil engineering work pile deep into the soil, the joint pile bodies can be successively spliced and buried deep in the soil. Even in this case, the civil engineering work pile can be deeply buried in the soil. The wedge body is stuck in the soil by puncturing it in the ground, stopping it at an appropriate place, and then taking the same procedure, and it can be locked deeply in the soil as a pile for civil engineering work. The present invention has such an action. Incidentally, the leading pile body alone also fulfills the same function.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 is an overall view of the present invention, FIG. 2 is a sectional view, FIG. 3 is a perspective view of a core body mounted in a lead pile body, FIG. 4 is a perspective view of a core body mounted in a joint pile body, and FIG. FIG. 6 is an overall perspective view of the wedge guide pocket metal fitting, FIG. 7 is a state view showing one embodiment, and FIG. 8 is a bottom view of the wedge body.

(1) is the main body of the pile for civil engineering work according to the present invention. The civil engineering work pile body (1) is usually composed of a leading pile body (2) and a joint pile body (2 '), and the leading pile body (2) and the joint pile body (2') are bonded together. It is joined and fixed by a known method such as fitting. However, the pile body for civil engineering work (1) does not necessarily include the leading pile body (2) and one joint pile body (2 ′),
Depending on the type of construction, the joint pile body (2 ′) can be further joined and fixed onto the joint pile body (2 ′). This civil engineering work pile body (1) is a leading pile body (2).
Depending on the shapes of the joint pile body (2 ′) and the joint pile body (2 ′), a prismatic shape or another shape can be formed. For example, it can be configured in a triangular shape or a pentagonal shape. In this embodiment, it has a rectangular shape. This civil engineering work pile body (1)
Is mainly formed of a metal material or a concrete material.
However, depending on the type of civil engineering work, it is possible to manufacture using a hard synthetic resin material.

(2) is a leading pile body. The leading pile body (2) is configured as follows. One end side (tip) is formed in a conical shape or a pyramid shape, and the other end side (side connected to the joint pile body) is formed in an opening shape, and the connection portion is integrally formed at the opening edge portion. ing. Furthermore, the inside of the leading pile body (2) is hermetically closed in a certain range on the tip end side, and is formed in a hollow shape toward the other end side. The side wall of the leading pile body (2) is provided with a plurality of openings. The opening provided on the side wall may be provided at a convenient place, but due to the relationship with the core body mounted inside, in this embodiment, it is slightly closer to the left side or the right side than the center part of the side wall. It is provided regularly. Also,
The connecting portion is provided with an opening, and further, a screw groove can be provided on the inner wall of the connecting portion. The leading pile body (2) is configured by mounting a core body having a plurality of sharp wedge-shaped tips on the inside of the leading pile body (2) formed in this way. This leading antibody (2)
Can be used alone, and can also be used as a pile for civil engineering work by itself. In this case, by burying the leading pile body (2) in the soil and pressing the core body in the leading pile body (2), the wedge body is pierced deeply into the soil, and as a result, it is used for civil engineering work. It fully fulfills the function as a pile of.

(2 ') is a joint pile. The joint pile body (2 ′) is joined and fixed to the leading pile body (2) to form the pile body (1) for civil engineering work. This joint pile body (2 ') is configured as follows. The inside is hollow and both ends are open, and one end side, that is, the side to be joined to the leading pile body (2) is a fitting part, and the fitting part is provided with an opening part and the other end. On the side, that is, on the side opposite to the leading pile body (2) side, a connecting portion is integrally formed with the opening edge portion, and an opening portion is provided on the side wall thereof, and this opening portion is convenient. Although it may be provided at a location, due to the relationship with the core body mounted inside, in this embodiment, a little from the central portion of the side wall of the pile body,
It is regularly arranged near the left side or the right side. Further, an opening portion is provided in the connection portion, similarly to the fitting portion on one end side, and a screw groove can be provided in the inner wall of the connection portion. Inside the joint pile body (2 ′) formed in this manner, a plurality of wedge bodies having sharp-edged tips and a core body having a medium-strength body of a suitable length are attached to form a joint pile body ( 2 ') is constructed.

(3) is a connecting portion. This connection (3)
Is provided on each of the leading pile body (2) and the joint pile body (2 ′). The connecting portion (3) is connected to the leading pile body (2) by
It is integrally formed on the end side opposite to the tip side, that is, on the outer side of the opening-shaped edge portion on the side where the joint pile body (2 ') is joined and fixed, and in the joint pile body (2'), the leading pile body. (2) is integrally formed on the outer side of the opening-like edge portion on the side opposite to the side fixed to the joint. When the leading pile body (2) is to be used alone, the leading pile body (2) can be formed without providing the connecting portion (3), or another pressing piece can be provided. Openings are regularly provided in the connecting portions (3). This connection (3),
For example, the leading pile body (2) and the joint pile body (2) are fitted to the joint portion (3) of the leading pile body (2) by fitting the fitting portion of the joint pile body (2 ′) and fixing the joint pile body. ') And that function as one civil engineering work pile. Further, by further fitting and fixing the fitting portion of the joint pile body (2 ′) to the connecting portion (3) of the joint pile body (2 ′), it can be used as a longer civil engineering work pile. It is a thing. Incidentally, in order to facilitate the fitting and joining, a screw groove may be provided inside the connecting portion (3).

(3 ') is an opening. The openings (3 ') are regularly provided in the connection part (3). The openings (3 ') are also regularly provided on the fitting portion side of the joint pile body (2'). For example, in this embodiment and other embodiments, the openings (3 ') are regularly provided at the connecting portion (3) at four positions. But not necessarily 4
It does not have to be in one place. In this embodiment, since the connecting portion (3) is provided with the four openings (3 ′) regularly, the fitting pile side (2 ′) is also provided with the four regular openings. , And an opening (3 ') is provided. Since each of the openings (3 ') is provided in this manner, it is convenient for fitting and fixing the lead pile body (2) and the joint pile body (2'). That is, for example, by fitting the fitting portion of the joint pile body (2 ′) to the connection portion (3) of the lead pile body (2) and aligning the respective opening portions (3 ′), the lead pile body ( 2) and the joint pile body (2 ') are joined and fixed without displacement. The hole (3 ′) provided in each of these functions only for joining and fixing the leading pile body (2) and the joint pile body (2 ′) in a straight line. In addition, the joint pile body (2 ') and the joint pile body (2') are also combined and fixed in a straight line.

(4) is an opening. This opening (4)
Is provided on the side walls of the leading pile body (2) and the joint pile body (2 ′). This opening (4) may be provided conveniently, but it is regularly provided on the side wall of the pile body in relation to the wedge body provided on the core body.
In this embodiment, they are provided at a total of eight locations in a regular symmetric manner with a suitable flight level, slightly closer to the left side or right side than the center of the pile body side wall. That is, both the side wall of the leading pile body (2) and the side wall of the joint pile body (2 ') have a suitable height and are slightly symmetrical with respect to the center of the side wall of the pile body, and are arranged symmetrically to the left side or the right side. 8 openings (4)
Is provided. That is, at least two openings (4) are provided on one side wall of the pile body. The wedge body provided in the core body mounted inside projects from all of the openings (4).
However, it is not always necessary to project from all the openings (4). It is also sufficient that the wedge body of appropriate number of protrusions is projected. In this and other embodiments, the wedges are configured to project from all openings (4). Further, other metal fittings can be provided in the opening (4).

Both (5) and (5 ') are core bodies. The core bodies (5) and (5 ') are partially different in the constitution. The core body (5) is mounted in the leading pile body (2), and the core body (5 ') is mounted in the joint pile body (2'). Therefore, the core body (5) mounted in the leading pile body (2) does not have the hitting body which the core body (5 ') mounted in the joint pile body (2') has. . This is because if the core body (5) mounted in the leading pile body (2) is not pressed by the core body (5 ') mounted in the joint pile body (2'),
This is because the core body (5) in the leading pile body (2) does not move, and therefore the wedge body of the core body (5) does not project into the soil. Therefore, the core body (5) and the core body (5 ′) have different configurations. Core body (5)
(5 ') is provided with a wedge body having a proper number of tips formed in an acute angle. In this example, the core body (5)
(5 ') Two pieces in each of the front, rear, left, and right corners of the pedestal, each having a length and a short length. Core body (5) (5') Regular in each corner of the pedestal. Eight sheets in total are provided symmetrically offset from each other. However, the number does not necessarily have to be eight. With regular symmetry, it is possible to use a suitable number of 6 or 10 sheets. Also, on the pedestal part of the core body (5 '),
In addition to the wedge body, a medium hit body is vertically provided in the center of the core body with an appropriate length. The core body (5) configured as described above is mounted in the leading pile body (2), or the core body (5 ') is mounted in the joint pile body (5'). Piles (2) of this core body (5) (5 ')
The attachment to (2 ') is simply to put the core bodies (5) and (5') into the pile bodies (2) and (2 ') in advance, but it is provided to the core bodies (5) and (5'). The wedge body is attached so that the tip of the wedge body comes into contact with the inner end of the opening (4) provided in the pile bodies (2) and (2 ′). Each core body (5) (5 ') thus mounted does not easily fall in the leading pile body (2) and the joint pile body (2'). It is done by friction and the locking action of the wedge.

(6) is a wedge. This wedge (6)
The tip is formed in an acute angle. This is because by forming in this way, it is easy to project into the soil, and the soil is stabbed deeper. Of course, other shapes may be used. For example, the tip can be formed in a wave shape, a bow shape, or any other convenient shape. This wedge body (6) is the core body (5) in this implementation.
(5 ') Two long and short wedges (6) are attached to each of the four corners of the pedestal portion so that they are offset from each other at the symmetrical corners. By attaching the wedge body (6) to the core bodies (5) and (5 ′) in this manner, compared with the case where the wedge body (6) is attached to the center of the side wall of the pedestal part. , A larger wedge body (6) can be attached to the core bodies (5), (5 '). This increases the strength of the wedge body (6) and also the strength of the pile body. This wedge (6)
Each has a long side and a short side. For example, in this embodiment, those provided on the outside are short and those provided on the inside are long. However, the number is not always 8
It does not have to be a sheet. For example, 6 sheets 10
It can be a sheet. It is also possible to increase or decrease the wedge body (6) according to the difficulty level of the civil engineering work. In the core body (5) (5 '), the wedge body (6) is arranged such that the core bodies (5) and (5') are displaced from each other on the four corner sides of the pedestal part to the symmetrical corner sides. 5 ') and is vertically long and short. This is for adapting to the opening (4) provided in the side wall of the leading pile body (2) and the joint pile body (2 ') and its position. The wedge body (6) is configured so that it can easily go out from the opening (4). The tip of the wedge body (6) has an opening (4).
The core bodies (5) and (5 ') are mounted in the leading pile body (2) or in the joint pile body (2') so as to be in contact with the inner ends, respectively. Openings (4) in piles (2) (2 ')
Since a metal fitting for guiding the wedge body (6) can be provided at the opening, the wedge body (6) can be easily opened by the opening (4).
It is also possible to project from the outside. Further, the notch (1) is formed on both side walls or one side wall of the wedge body (6).
0) can also be provided. By providing the notch (10), the root strength of the wedge body (6) can be increased.

(7) is a medium hit body. This medium hit body (7)
Is a core body (5 ') mounted in the joint pile body (2')
Like the wedge body (6), it is vertically attached and fixed to the central portion of the. One end of the medium hitting body (7) is adhesively fixed to the core body (5 '), and the other end is vertically downward. The tip of the other end may be formed in a cylindrical shape or a prism shape, or may be formed in another shape. The medium hitting body (7) is constructed in a suitable size with a length slightly longer than that of the wedge body (6) simultaneously formed on the core body (5 '). By pressing the core body (5 ′), for example, the hitting body (7) moves downward, that is, toward the tip end of the pile body (1) for civil engineering work, and passes through the inside of the joint pile body (2 ′). Then, the core body (5) of the leading pile body (2) is pressed. By the pressing of the medium hitting body (7), the core body (5) in the leading pile body (2) moves toward the tip end,
The wedge body (6) fixed to the core body (5) is projected from the opening (4) to the outside, and at the same time, the wedge body (6) provided on the core body (5 ′) is also provided. It projects outwards. The medium hitting body (7) acts in this way. Even when the joint pile bodies (2 ′) are connected, the same operation is performed. In addition, this medium hit body (7)
Is not provided in the core body (5) mounted in the leading pile body (2).

(8) is a wedge guide pocket metal fitting. The wedge guide pocket metal fitting (8) is constructed such that the outer surface is inclined toward the opening end, only two surfaces are open, and a slight locking portion is provided on the front opening end side. It is provided and configured. The wedge body guide pocket metal fitting (8) having such a structure is provided with an opening (4) provided on each side wall of the leading pile body (2) and the joint pile body (2 ′).
It can be attached and fixed to. This wedge-shaped guide pocket metal fitting (8) has some sizes.
Depending on the height of the opening (4), there is a slight change in the size of attachment. That is, the wedge body guide pocket metal fitting (in which the long tip of the wedge body (6) fixedly attached to the core bodies (5) and (5 ') incorporates the shorter tip of the same wedge body (6) ( This is because the wedge body (6) is mounted so as to be housed in the wedge body guide pocket metal fitting (8) in which the longer tip of the wedge body (6) is not touched. The wedge body guide pocket metal fitting (8) provided in the opening portion (4) thus easily opens the wedge body (6) when the core bodies (5) and (5 ′) are pressed. It can be made to project outside, that is, into the soil. The wedge body guide pocket metal fitting (8) performs such a function, and at the same time, in the usual case, the tip of the wedge body (6) touches the bottom surface of the metal fitting (8), so that the core body (5) (5 '). ) Also has a function of preventing falling.

(9) is a notch. This notch (9)
Is what is displayed in this example. The cutout portion (9) is provided when the core bodies (5) and (5 ′) are formed in a prismatic shape (particularly a square shape) (FIGS. 3 and 4). By providing this notch (9) in the core body (5) (5 '), the core body (5) (5'), the leading pile body (2) and the inner surface of the joint pile body (2 ') are fixed. Will result in a space. Due to the formation of this space, it is possible to put a pipe in the civil engineering work pile body (1), and thereby, through the pipe, into the civil engineering work pile body (1), for example, cement, Alternatively, water glass or the like can be injected. By doing this,
The pile body for civil engineering work (1) can be more firmly fixed in the soil. This notch (9) has a core body (5) in order to have such a function.
It is provided in (5 '). This is the same when the leading pile body (2) is used alone as a pile for civil engineering work.

The core body (5) thus constructed
(5 ') in the leading pile body (2) or joint pile body (2)
For mounting, the wedge body (6) or the core body (5) (5 ') to which the wedge body (6) and the medium hitting body (7) are attached in advance is pile body (2) (2'). Insert from the top opening of each. After inserting this core body (5) (5 '), the tip of the wedge body (6) of the core body (5) (5')
The core bodies (5) and (5 ') are pressed, locked, and stopped until they reach the openings (4) provided in the pile bodies (2) and (2'). By doing this, the core body (5)
Due to the friction between (5 ') and the piles (2) and (2') and the locking action of the wedge body (6), it does not drop further under normal conditions. Further, when the core bodies (5) and (5 ') are installed, it is necessary to prevent the wedge body (6) from shaking. Since the wedge body (6) is somewhat long and sways, there is a surface which is difficult to mount on the leading pile body (2) or the joint pile body (2 ′). Therefore, in order to prevent the swinging of the wedge body (6), before attaching the core body (5) (5 ') to the leading pile body (2) or the joint pile body (2'), It is possible to prevent the wedge body (6) from swinging by attaching the wedge body (6) swinging prevention member formed of a simple synthetic resin material to a plurality of suitable places. Thereby, the core bodies (5) and (5 ') can be easily fitted to the leading pile body (2) or the joint pile body (2'). Even if the wedge body (6) shaking prevention member inserted in the pile body (2) (2 ') is left as it is,
It has no effect on the civil engineering work pile.
By pressing the core body (5) (5 '),
It comes off the wedge body (6) and is housed in the pile bodies (2) and (2 ′), and in some cases, it is fixed by concrete or the like. Since the wedge body (6) anti-vibration member merely serves to simply prevent the wedge body (6) from vibrating, it does not require a strong member.

The pile for civil engineering work of the present invention thus constructed is used as follows. It is also possible to use only the leading pile body (2) if it is used in a simple place. In this case, the core body (5) is pierced into the soil from the tip end direction of the leading pile body (2), stopped at the necessary limit, and thereafter, the core body (5) is pressed by another member, so that the core body ( At the same time as 5) moves toward the tip, the wedge body (6) projects outward (in the soil) and is obliquely inserted into the soil. It may be performed after attaching the wedge guide pocket metal fittings (8) to the openings (4) in advance. This is fine for simple cases, but this is not the only case for ordinary cases. It is necessary to drive civil engineering work piles into deeper soil. For example, when a large strength is required, such as for earthquake resistance, for seawall protection, the leading pile body (2) alone cannot be used. Therefore, the leading pile body (2) is first driven into the soil in advance, and then the required number of joint pile bodies (2 ')
Connect and go. After connecting to the required depth and driving to the required depth, press the core body (5 ') with other members or other parts prepared for this civil engineering work pile. To do. As a result, the core body (5 ') is moved toward the tip of the pile for civil engineering work, and the core bodies (5) and (5') are sequentially moved. By doing so, the wedge bodies (6) of the core bodies (5) and (5 ') project to the outside (in the soil) and become rooted. The civil engineering work pile of the present invention is used in this manner.

[0020]

According to the present invention thus constructed, it is possible to reduce a certain thickness due to the bulkiness of the wedge body attached to the core body, and the four corner sides of the pedestal portion of the core body are symmetrical to each other. Since the wedges are symmetrically offset from each other, it is possible to receive the stability of force, and also to stabilize the pile for civil engineering work in the soil, prevent it from shaking, and prevent it from protruding. However, it can be firmly fixed in the soil to prevent the risk of underground construction. Also, since the present invention is suitable for mass production,
It can be supplied economically and inexpensively. It has such an effect.

[Brief description of drawings]

Fig. 1 Overall view

[Figure 2] Sectional view

FIG. 3 is a perspective view

FIG. 4 is a perspective view

[Figure 5] Usage diagram

FIG. 6 is a perspective view

FIG. 7 is a diagram showing a use state.

FIG. 8 is a bottom view of the wedge body.

[Explanation of symbols]

 (1) Pile body for civil engineering work (2) Leading pile body (2 ') Joint pile body (3) Connection part (3') Open hole part (4) Opening part (5) Leading pile in-core core body (5 ') ) Joint pile inner core body (6) Wedge body (7) Medium hit body (8) Wedge body guide pocket metal fitting (9) Notch part (10) Wedge body notch part

Claims (10)

[Claims] 1. One end is formed in a cone or pyramid shape, the other end is formed in an opening shape and has a connecting portion, and the inside is formed in a hollow shape, and the side wall is slightly closer to the left side or the right side than the central portion. , A plurality of wedge bodies, each of which has a tip formed in an acute angle, are attached to the four corners of the pedestal portion of the core body in a symmetrical manner with respect to each other in the pile body provided with a plurality of openings, and A pile for civil engineering work as a leading pile body, comprising a core body having a wedge shape having long and short shapes. 2. An inner cavity shape, both ends of which are open, one end side of which is a fitting portion, the other end side of which has a connecting portion, and the side wall is located slightly to the left or right of the central portion. , A plurality of wedge bodies, each of which has a tip formed in an acute angle, are attached to the four corners of the pedestal portion of the core body in a symmetrical manner with respect to each other in the pile body provided with a plurality of openings, and Civil engineering work as a joint pile body, which is equipped with a core body having a wedge body formed with long and short wedge shapes and a medium-strength body of appropriate length Stake. 3. The pile for civil engineering work as the lead pile body according to claim 1 and the pile for civil engineering work as the joint pile body according to claim 2, which are formed by being combined with each other. Pile for civil engineering work. 4. The pile for civil engineering work according to claim 1 or 2, wherein a plurality of openings are provided in a connection portion provided on the pile body, and one end of the joint pile body according to claim 2. The pile for civil engineering work according to claim 3, wherein the side fitting portion is also provided with a plurality of openings. 5. The pile for civil engineering work according to claim 1, claim 2 and claim 3, wherein a wedge guide pocket metal fitting is provided in the opening, the bottom side of which is inclined toward the opening end. Pile for civil engineering work characterized by that. 6. The pile for civil engineering work according to claim 1, claim 2 or claim 3, wherein the pile body is formed in a prismatic shape. 7. A pedestal portion of a core body for fixing and mounting a wedge body or a wedge body and a medium hitting body is formed in a prismatic shape, and the wedge body is displaced from each other at four corner sides of the pedestal portion of the core body to be symmetrical to each other. The pile for civil engineering work according to claim 1, 2 or 3, wherein the pile is mounted in a closed state. 8. The wedge portion of the wedge has a short outer shape and a long inner shape, or has a long outer shape and a short inner shape. The civil engineering work according to claim 1 or claim 2, wherein the wedge blade portion is formed in a convenient shape such as a corrugated shape, a bow shape, a sword shape, or a saw blade shape. Stake. 9. A wedge body or a core body for fixing and mounting a wedge body and a medium striking body to a shape in which a corner of a prismatic pedestal portion is cut off, and the core body is cut off. Civil engineering work pile described in 3. 10. The pile for construction work according to claim 1, 2 or 3, wherein a plurality of cutouts are provided on both side walls or one side wall of the wedge body. .