JP2814355B2 - Pile embedding device and method of embedding pile for foundation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pile embedding device for embedding a foundation pile to reinforce the ground when constructing a building or the like.
The present invention relates to a method for embedding foundation piles .

[0002]

2. Description of the Related Art In the construction of buildings such as ordinary houses, it is important to construct a foundation that serves as a foundation of the building. Since the foundation is provided on the ground, it is necessary to first strengthen the ground in order to construct a foundation having sufficient strength. As a general method of strengthening the ground, there is a method of mixing the improver such as cement by stirring the ground to solidify, or a method of embedding a large number of piles in the ground. Of these, the latter method is particularly widely used because the construction cost is relatively low.

[0003] In this method, first, a hole of a required depth is provided at a required position on the ground by a drilling device, a so-called auger device, which is a dedicated machine, and then a pile driver provided with a hydraulic hammer, a hydraulic vibro, or the like. It is performed by hitting wooden piles or concrete piles with a device and driving them while applying vibration.

[0004]

However, the above-mentioned conventional method has the following problems. That is, the operation of hammering the pile with a hydraulic hammer or vibrating with a hydraulic vibrator causes various damages to residents and houses in the surrounding area due to noise and vibration, and causes various complaints.

[0005]

The object of the present invention is to solve the above problems,
Pile embedding device that can embed piles to strengthen the ground when constructing the foundation of the building without generating noise and vibration, and does not have to worry about damaging the surrounding area of the construction part
And a method for embedding foundation piles .

[0006]

Means for Achieving the Object Means of the present invention taken to achieve the above object are as follows. In the first invention , a pile embedding device for embedding a foundation pile in the ground.
A location, a hydraulic excavator system excavator, the hydraulic Shi
It is attached to the tip of the arm of the excavator
An implantable attachment with a hydraulic motor and the drive
Via a universal joint to a shaft rotated by a dynamic hydraulic motor
Perforated rod that can be detached and attached to and detached from the shaft
It is possible to fix the pile by fixing it to the top of the pile.
A cap having a stage provided with said perforations rod
And the cap are selectively used for drilling and pile embedding.
It is a pile embedding device characterized by being used .

[0007] In the second invention , the foundation pile is placed on the ground.
Pile embedding device for embedding, hydraulic excavator system
Excavator and arm tip of the excavator
With mounting hydraulic motor
It is rotated by the touchment and the drive hydraulic motor.
That can be detachably attached to the shaft through a universal joint
It can be attached to and detached from the rod and the above shaft.
A cap having a hooking pawl plate comprises a, the
The piercing rod and the cap are covered when piercing and embedding the pile.
Pile embedding equipment characterized by being selectively used
is there.

[0008] In the third aspect of the present invention , the foundation pile is placed on the ground.
Pile embedding device for embedding, hydraulic excavator system
Excavator and arm tip of the excavator
Yes attached to, A use buried with a drive hydraulic motors
It is rotated by the touchment and the drive hydraulic motor.
To the shaft through a detachable universal joint via bolts
Piercing rod that can be detached from the shaft
And a cap having fixing means for fixing the pile.
And the cap and the perforated rod and the cap
Is selectively used for drilling and pile embedding
It is a pile embedding apparatus characterized by the above-mentioned.

In the fourth invention , the first, second, or fourth
Embedding a pile for foundation using the pile embedding device according to the third invention.
The method is rotated by the driving hydraulic motor
Step for attaching the above piercing rod to the shaft via a universal joint
Operating the hydraulic excavator excavator
Providing a desired depth of the guide hole in the ground by the upper
Remove the universal joint and the piercing rod from the
Counting the cap on the spindle, guide above
Putting a soil conditioner that solidifies the soil inside the hole,
Stand the pile in the guide hole and cover the top of the pile with the cap.
And press while rotating in the circumferential direction of the shaft to bury the pile in the ground
Burying the foundation pile.
It is a method of incorporation.

The soil conditioner solidifies the soil and is, for example, but not limited to, cement, lime and the like. The cap has a fixing means at a portion to be mounted on the upper part of the pile. The fixing means is not particularly limited as long as the pile and the cap can be integrally rotated. For example, when the pile is made of wood, it is a required number of claws that can bite into the tree, and when the pile is made of square pillar-shaped concrete, it is a square hole or the like.

[0011]

The pile embedding device according to the present invention operates as follows.
You. First, it can be freely adjusted to the axis rotated by the drive hydraulic motor
Fittings and piercing rods are installed. Hydraulic excavator system
Operate the excavator and drill the required depth into the ground with the drilling rod.
Id holes are provided. Remove the universal joint and the piercing rod from the above shaft.
And attach a cap to the shaft. Inside the guide hole
Add a soil conditioner to solidify the soil in the part. Pile to guide hole
Place the cap on top of the pile and rotate it around the axis.
While pressing to embed the pile in the ground. In this way,
Since the foundation pile can be buried in the ground, compared to the case of driving using a hydraulic hammer or a hydraulic vibro, an impact sound that is likely to be noise is not generated, and almost no vibration is generated.

The pile embedding device has a universal joint.
Therefore, even when the axis rotated by the driving hydraulic motor and the axial direction of the piercing rod intersect, transmission of the rotational force is possible. Thus, when drilling, for example when the drilling rod is in contact with the stone, it is possible to escape changes the direction of the drilling rod through the action of the universal joint, can prevent damage such as perforation rod and the <br/> axis.

In the method of embedding a pile for foundation, a guide hole is provided.
Since the soil conditioner is added to the pile, the soil solidified by the soil conditioner adheres to the periphery of the pile after construction, and the pile becomes stronger and harder to come off.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. FIG. 1 is a perspective view showing a structure of a frame and a hydraulic motor portion of an embedding attachment of a pile embedding device according to the present invention, FIG. 2 is an explanatory diagram showing a structure of a universal joint and a mounting method, and FIG. 3 is a structure of a cap. And FIG. 4 is a perspective view of the cap as viewed from the bottom.

Reference numeral A1 denotes an embedding attachment which constitutes the pile embedding device, and includes a frame 1. The frame 1 comprises a front plate 11, side plates 12, 13, an upper plate 14, and a bottom plate 15.
The rear part (the front side in FIG. 1) is open. The bottom plate 15 is provided with a U-shaped notch 16 through which the insertion shaft 21 described below passes.

A hydraulic motor 2, which is a driving hydraulic motor, is mounted in an area surrounded by the plates 11, 12, 13, 14, and 15. The hydraulic motor 2 has a rotating shaft (not shown) fixed downward. A cylindrical insertion attachment 20 is attached to the rotation shaft, and an insertion portion (not shown) is provided at a tip end thereof. A square pillar-shaped insertion shaft 21 is detachably attached to the insertion portion by passing a bolt B through a bolt hole (not shown) provided on both sides and tightening a nut (not shown). Insertion shaft 2
A bolt hole 22 is provided in the vicinity of the front end of one through two opposing surfaces.

On the upper surface of the upper plate 14, there are provided brackets 18, 18 for attaching to the tip of the arm of the hydraulic excavator. The brackets 18 have pin insertion holes 19 at two locations.

A piercing rod 3 or a cap 4 is attached to the tip of the insertion shaft 21. When attaching the piercing rod 3, the universal joint 5 is attached between the insertion shaft 21 and the piercing rod 3.

First, a case where the piercing rod 3 is attached to the insertion shaft 21 will be described. The universal joint 5 has two connecting bodies 51,
52 are provided. The connection body 51 has a circular substrate 53. On one surface of the substrate 53, there is provided a square tubular insertion portion 50 into which the insertion shaft 21 is fitted. Insertion part 5
0 is provided with a bolt hole 59 penetrating in one of the opposing surfaces. The insertion part 50 and the insertion shaft 21 are aligned with the bolt holes 59 and the bolt holes 22, penetrating both, and passing the bolt B,
A nut N is screwed into the screw portion and connected.

A bracket 54 is provided at a required interval on the other surface of the substrate 53, and a shaft rod 55 is mounted between the brackets 54 so as to be rotatable in a circumferential direction of the shaft. The shaft rod 55 has a cross shape, and the crossed shaft rod 5
6 is a bracket 5 of a connecting body 52 having the same structure as the connecting body 51.
4 is attached so as to be rotatable in the circumferential direction of the shaft. In the drawings, each component of the connector 52 is assigned the same reference numeral as each component of the connector 51.

The insertion portion 50 of the connecting body 52 has
Is attached. The insertion shaft 31 has a square pillar shape, and is provided with a bolt hole 32 penetrating two opposing surfaces. The insertion portion 50 and the insertion shaft 31 are aligned with the bolt holes 59 and the bolt holes 32, and the bolt B is passed therethrough.
A nut N is screwed into the screw portion and connected. Perforated rod 3
A screw 34 (see FIGS. 5 and 6 described later) is provided on the tip side of the rod 33. Reference numeral 35 denotes the piercing rod 3
Is a stop plate to prevent the ground from getting too deep.

Next, a case where the cap 4 is attached to the insertion shaft 21 will be described. The cap 4 has a substantially inverted bottomed cylindrical cap body 41. At the center of the upper plate 42 of the cap body 41 is attached a cylindrical insertion portion 43 through which the insertion shaft 21 can be inserted and whose inside has a rectangular cross section. Insertion part 4
3 is provided with a bolt hole 44 penetrating the side surface in the diameter direction. Reference numerals 45, 45... Indicate reinforcing ribs.

On the inner side of the cap 4, four claw plates 46 are provided at an angle of 90 °. Nail plate 4
6, 46,... Are formed so that the inner surface is inclined from the back side of the upper plate 42 to the side wall portion 47. Thereby, when the cap 4 is put on the upper part of the pile and pressed, the claw plates 46, 46,... Can bite into the upper part of the pile flexibly according to the difference in diameter of the pile, and Natural nail plate 46, 4
Guided on the slope of 6 ..., it is located at the center of the cap 4.

(Operation) FIG. 5 is an explanatory view showing an embodiment of a pile embedding apparatus according to the present invention, FIG. 6 is an explanatory view of a drilling operation, and FIG. 7 is an explanatory view of a pile embedding operation. The operation of the present embodiment will be described with reference to FIGS. The pile embedding device uses the hydraulic attachment for the embedding attachment A1.
This is a structure attached to the tip of the arm 71 of the excavator 7. First, the piercing rod 3 is connected to the insertion shaft 21 of the hydraulic motor 2 via the universal joint 5. The drill rod 3 is erected on the ground 8 of the construction part, the hydraulic motor 2 is operated, the arm 71 is operated, and the guide hole 81 is drilled to a required depth. The insertion shaft 21 and the piercing rod 3
Even when the axial directions intersect with each other, the rotation force can be transmitted by the action of the universal joint 5. Accordingly, when drilling, for example, when the piercing rod 3 comes into contact with an obstacle such as a stone or a piece of concrete, the direction of the piercing rod 3 can be changed and released by the action of the universal joint 5, so that the piercing rod 3 and the insertion shaft can be removed. 21 can be prevented (see FIGS. 5 and 6).

The piercing rod 3 and the universal joint 5 are removed from the insertion shaft 21 of the hydraulic motor 2, and the cap 4 is mounted instead. An appropriate amount of water and a soil improving agent such as cement are put in the perforated guide hole 81. The wooden pile 9 is set up in the guide hole 81, and the arm 4 is operated to fit the cap 4 on the upper part of the wooden pile 9. The cap 4 is pressed against the upper part of the wooden pile 9 so that the claw plates 46, 46.

When the hydraulic motor 2 is operated, the wooden pile 9 rotates integrally with the cap 4 in the axial direction. The wooden pile 9 is pressed from above by operating the arm 71. Thereby, wooden pile 9
Are embedded in the ground 8 along the guide holes 81 (see FIG. 7). When the upper part of the wooden pile 9 is buried deeply in the ground 8, the work may be performed in the same manner as above by replacing the mounting shaft 21 of the hydraulic motor 2 with a longer one.

According to the construction described above, compared with the conventional driving method using a hydraulic hammer or a hydraulic vibrator, the impact sound which is likely to be noise is not generated and the vibration is hardly generated. Further, since the soil improvement agent such as cement is put into the guide hole 81 and the wooden pile 9 is embedded,
The soil solidified by the soil conditioner adheres to the surroundings, and the strength of the wooden pile 9 is further increased, so that the wooden pile 9 is hardly corroded and hardly comes off.

When the pile to be embedded is not a wooden pile as described above but a square pillar-shaped concrete pile, it is possible to use a cap provided with an insertion portion having a rectangular cross section on the inner side. The cap 4 used for embedding 9 may be diverted and the nail plate 46 may be used by fitting it into the corner of the concrete pile. Further, since the upper corner portion of the concrete pile is easily chipped, it is also possible to mount a protective cap (not shown) in the shape of a rectangular tube with a bottom on the upper portion and hold the protective cap with the cap 4 or the like.

FIG. 8 is an explanatory view showing another embodiment of the embedding attachment. In the embedding attachment A2, the brackets 18, 18 are not the upper plate 14 but the side plate 1
2 and 13 are attached to the side (a front opening facing the front plate 11 in FIG. 1) via a base plate (not shown). This results in the same hydraulic show as shown in the figure.
In the bell type excavator 7, the supporting height of the frame 1 can be set higher, so that the use of the longer perforated rod 3 and the embedding of the wooden pile 9a become possible. The present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the claims.

[0030]

The present invention has the above configuration and has the following effects. (A) Pile embedding device and embedding method of foundation pile according to the present invention
According to this, since the embedding of the foundation pile can be performed by pressing from above while rotating in the axial direction, compared with the case of driving using a hydraulic hammer or a hydraulic vibro,
There is no impulsive sound which is likely to be noise, and almost no vibration. Therefore, the occurrence of complaints from around the construction area can be mitigated.

(B) In the method of embedding the foundation pile, a perforated guide
Since the soil improvement agent is put in the hole, after construction,
The soil solidified by the soil improving agent adheres around the pile, and the pile becomes stronger and harder to come off, so that the strength as a foundation can be further improved.

(C) The piercing rod is rotated by the driving hydraulic motor.
Because it is attached via a universal joint that can change axis direction in flexible that, the axial drilling rod and the shaft is capable of transmitting the rotational force even when crossing.
Therefore, when be busy perforations rod ground, for example when the drilling rod is in contact with obstacles such as stones or concrete debris, it is possible to escape change the direction of drilling rods by the action of the universal joint, drilling rod Ya thereby preventing damage to the shaft or the like.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a structure of a frame and a hydraulic motor portion of an embedding attachment of a pile embedding device according to the present invention.

FIG. 2 is an explanatory view showing a structure and an attachment method of a universal joint.

FIG. 3 is an explanatory view showing a structure and a mounting method of a cap.

FIG. 4 is a perspective view of the cap as viewed from the bottom.

FIG. 5 is an explanatory view showing one embodiment of a pile embedding device according to the present invention.

FIG. 6 is an explanatory view of a drilling operation.

FIG. 7 is an explanatory view of a pile filling operation.

FIG. 8 is an explanatory view showing another embodiment of the attachment for embedding.

[Explanation of symbols]

A1 Attachment B for mounting B Bolt 1 Frame 11 Front plate 12, 13 Side plate 14 Upper plate 15 Bottom plate 16 Notch 18 Bracket 19 Pin insertion hole 2 Hydraulic motor 20 Insertion attachment 21 Insertion shaft 22 Bolt hole 3 Drilling rod 31 Shaft 32 bolt hole 33 rod 34 screw 35 stop plate 4 cap 41 cap body 42 upper plate 43 insertion portion 44 bolt hole 46 claw plate 47 side wall portion 5 universal joint 50 insertion portion 51, 52 connector 53 substrate 54 bracket 55, 56 shaft Rod 59 Bolt hole 7 Hydraulic excavator excavator

Claims (4)

(57) [Claims] A pile embedding for embedding a foundation pile into the ground.
A hydraulic excavator excavator (7) and an excavator (7) mounted on the extremity of an arm of the hydraulic excavator (7).
Mounting attachment with drive hydraulic motor
Joint (A1) and a universal joint on a shaft rotated by the drive hydraulic motor.
Perforated rod detachably attached via (5)
(3) It can be attached to and detached from the shaft, fitted into the upper part of the pile, and fixed to the pile.
A cap (4) having a fixing means for the constant includes a, the boring rod (3) and the cap (4) has perforations
It is used selectively when embedding piles.
That, pile embedding apparatus. 2. A pile embedding for embedding a foundation pile in the ground.
A hydraulic excavator excavator (7) and an excavator (7) mounted on the extremity of an arm of the hydraulic excavator (7).
Mounting attachment with drive hydraulic motor
Joint (A1) and a universal joint on a shaft rotated by the drive hydraulic motor.
Perforated rod detachably attached via (5)
(3) The claw which can be attached to and detached from the shaft and engages with the upper part of the pile on the inner side
A cap (4) having a plate (46) provided with a said piercing rod (3) and the cap (4) during drilling
And selectively used during pile embedding.
That, pile embedding apparatus. 3. A pile embedding for embedding a foundation pile in the ground.
A hydraulic excavator excavator (7) and an excavator (7) mounted on the extremity of an arm of the hydraulic excavator (7).
Mounting attachment with drive hydraulic motor
Bolt (A1) and a shaft that is rotated by the drive hydraulic motor.
Attached via universal joint (5) that can be removed via (B)
Piercing rod (3), which can be attached to and detached from the shaft, fits into the upper part of the pile, and secures the stake.
A cap having a fixing means for a constant (4), provided with a said piercing rod (3) and the cap (4) during drilling
And selectively used during pile embedding.
That, pile embedding apparatus. 4. A pile embedding device according to claim 1, 2 or 3.
A method of embedding a pile for foundation, using a universal joint on a shaft rotated by the drive hydraulic motor.
Step (5) for attaching the piercing rod (3)
Operating the hydraulic excavator excavator (7)
(3) to provide a guide hole of the required depth in the ground
From the shaft, the universal joint (5) and the perforated rod (3)
And attach the cap (4) to the shaft
Step, put a soil conditioner to solidify the soil inside the guide hole
Step, stand the stake in the guide hole, the cap on the top of the stake
(4) and press while rotating in the circumferential direction of the shaft.
Characterized in that it comprises a step, to be embedded in the ground, buried how the foundation for piles.