JPH08209696A - Pile burying method for foundation pile and burying attachment and pile burying device - Google Patents

Abstract

PURPOSE: To enhance the working efficiency by boring a guide hole by a boring device arranged in a movable operation part of a work machine, removing the boring device from the movable operation part, putting a fitting part arranged in the movable operation part on an upper part of a pile, and burying the pile along the guide hole by a vibrating device. CONSTITUTION: An arm 91 of a pile burying device 9 is operated, and a boring rod 44 is erected in a boring place of the ground 8 of a construction part. A hydraulic motor 21 of a boring device is actuated, and the arm 91 is operated, and a guide hole is bored in a necessary depth. The boring device is removed together with a relay member 31 from a fitting part 15. An oil line is switched, and the hydraulic motor 21 of a vibrating device 2 is actuated. A pile is erected in a guide hole, and the arm 91 is operated, and the fitting part 15 is put on an upper part of the pile. The vibrating device 2 is actuated, and while vibrating a frame 1, the arm 91 is operated, and the pile is pressed, and is buried along the guide hole.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for embedding foundation piles, which is embedded to reinforce the ground during construction of a building, an attachment for embedding, and a pile embedding device.

[0002]

2. Description of the Related Art In constructing a building such as a general house, it is important to construct a foundation as a foundation of the building. Since the foundation is provided on the ground, it is necessary to strengthen the ground first in order to construct a foundation having sufficient strength. As a general method for strengthening the ground, there are a method of stirring the ground and mixing an improving agent such as cement to solidify the ground, and 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.

In the construction of this method, first, a hole of a required depth is formed at a required position of the ground by a so-called auger device such as a boring machine which is a dedicated machine, and then a hydraulic hammer or a hydraulic vibro. It is carried out by tapping a wooden pile or a concrete pile or embedding it while applying vibration with a pile filling device equipped with.

[0004]

However, the above-mentioned conventional method has the following problems. That is, in order to perform the pile embedding work, a work machine for boring and a work machine for embedding the pile are required. Therefore, for example, if the construction site is a small area in a residential area, first,
The work machine for drilling is brought into the field to perform the drilling work, and then the work machine is replaced with the one for embedding the pile to perform the pile filling work. As described above, in the work of embedding the piles, not only the above-mentioned two types of work machines are required, but also work of replacing the work machines is required depending on the location, resulting in poor work efficiency.

[0005]

The object of the present invention is to solve the above problems.
Allows one work machine to perform drilling work and pile embedding work for embedding foundation piles when constructing building foundations, for example, even when the construction site is a narrow place in a residential area. The purpose is to improve work efficiency by eliminating the need to replace work machines dedicated to each work.

[0006]

[Means for Achieving the Object] The means of the present invention for achieving the above object are as follows. The first means is a method of embedding foundation piles in the ground,
This method comprises the steps of drilling a guide hole with a drilling device that is removably provided in the movable operation part of the work machine, removing the punching device from the movable operation part, and fitting the fitting part provided in the movable operation part to the top of the pile. And embedding the pile along the guide hole by vibrating it with a vibrating device, and embedding the foundation pile.

A second means is a method of embedding a foundation pile in the ground, which comprises a step of punching a guide hole by a punching device detachably provided in a movable operating portion of a working machine. , The step of putting soil improvement agent to solidify the soil inside this guide hole, the step of removing the punching device from the movable operation part, the fitting part provided in the movable operation part is put on the upper part of the pile, and vibration is applied by the vibration device. And embedding the pile along the guide hole.

The third means is an attachment for embedding a foundation pile in the ground, the attachment being a frame attachable to a movable operating portion of a working machine, and a vibration provided in the frame. A device, and a fitting portion provided on the frame for covering the upper part of the pile,
A piercing device detachably provided on the frame via a universal joint, wherein the piercing device and the fitting portion are selectively used to embed a foundation pile.

The fourth means is a pile embedding device for embedding a foundation pile in the ground, which is a vibrating device provided on a working machine and a movable operating portion of the working machine. And a fitting portion provided on the movable operation portion for covering the upper part of the pile, and a punching device detachably provided on the movable operation portion via a universal joint, and fitted with the punching device. The joint is a pile embedding device for foundation piles that is selectively used.

The soil conditioner is a substance which solidifies the soil, and examples thereof include, but are not limited to, cement and lime. The working machine is not particularly limited, but examples thereof include hydraulic excavator-based excavators such as backhoes and various boring machines.

[0011]

[Operation] The embedded attachment is attached to the movable operation unit such as the arm of the work machine. Operate the movable operation part,
Position the mounting attachment at the construction site. A guide hole is drilled to the required depth in the ground at the construction site with a drilling device. Since the punching device is attached via the universal joint, the axial direction can be set arbitrarily. Further, when drilling, for example, when the drilling rod of the drilling device comes into contact with an obstacle such as a stone or concrete piece in the ground, the axial direction of the drilling rod is changed by the action of the universal joint so that the drilling device can escape. It is possible to prevent damage to each part of the device.

Next, the punching device is removed from the frame.
The pile is erected in the drilled guide hole and the movable operating part of the work machine is operated to fit the fitting part on the upper part of the pile. Then, while operating the vibrating device, the movable operation portion pushes the pile downward. As a result, the pile is embedded in the ground along the guide hole. Since the pile embedding device has a structure in which the working machine is provided with substantially the same requirements as the above-mentioned attachment in advance, the pile embedding device acts almost similarly to the working machine to which the attachment is attached.

[0013]

The present invention will be described in more detail based on the embodiments shown in the drawings. FIG. 1 is an explanatory view showing an embodiment of a pile embedding device according to the present invention, and FIG. 2 is an exploded perspective view of a main part of an embedding attachment. Reference numeral B is a pile embedding device, which is equipped with a work machine 9. An arm 91 that is a movable operation unit of the work machine 9.
An attachment A for embedding is attached to the tip of the. Further, a link 94 provided on the arm 91 is attached with a base end portion of a suspension wire 92 having a hook 93 attached to a tip end portion thereof. The hook 93 has a retaining mechanism.

The mounting attachment A includes a frame 1. On the upper part of the upper plate 11 of the frame 1, brackets 12, 12 for attaching to the tip of the arm 91 are attached.
Is provided. The brackets 12 and 12 are provided with pin insertion holes 13 and 13, respectively. A rectangular base plate 14 is provided below the frame 1. The vibrating device 2 is provided above the base plate 14. The vibration device 2 has a general structure in which a weight is rotated by a hydraulic motor 21 to vibrate.

At the center of the lower surface of the base plate 14, there is provided a cylindrical fitting portion 15 for fitting into the upper portion of the pile. Mating part 1
Pin holes 16 and 16 are provided on the side of 5 so as to face each other on the diameter line. A relay member 31 forming a universal joint is attached to the fitting portion 15. The relay member 31 is substantially Y-shaped, and cylindrical insertion tubes 32, 32 are provided at the upper end portion. A bolt hole 33 is provided at the lower end of the relay member 31. In the relay member 31, the pin hole 16 and the insertion tube 32 are aligned, the pin 34 is inserted, and the pin 35 is inserted into the bolt 35 and the nut 36.
Is fixedly attached to one of the insertion tubes 32.

A punching device 4 is provided below the relay member 31.
Is attached. The punching device 4 includes a base bracket 41. A bolt hole 4 is provided on the base bracket 41.
2, 42 are provided. In the base bracket 41, the bolt hole 42 is aligned with the bolt hole 33, and the bolt 47 is inserted,
It is attached to the relay member 31 by screwing a nut 48.

A hydraulic motor 43 is built in the lower portion of the base bracket 41. A drilling rod 44 is attached to the rotary shaft of the hydraulic motor 43. A screw 45 is provided below the piercing rod 44, and a stop portion 46 is provided above the screw 45 for keeping the piercing depth of the piercing rod 44 constant by contacting the ground. Since the hydraulic motor 43 of the punching device 4 and the hydraulic motor 21 of the vibrating device 2 are not simultaneously operated during work, one system of the oil line of the working machine 9 is switched and used.

(Operation) FIG. 3 is an explanatory view showing a state where a guide hole is drilled, and FIG. 4 is an explanatory view showing a state where a pile is embedded. The operation of this embodiment will be described with reference to FIGS. The arm 91 of the pile embedding device 9 is operated to stand the drilling rod 44 at the drilling location of the ground 8 of the construction section. The hydraulic motor 21 of the punching device 4 is operated to operate the arm 91 to punch the guide hole 81 to a required depth. The boring rod 44 of the boring device 4 can be tilted in an arbitrary direction to perforate the ground 8 by the action of the relay member 31 forming the universal joint. Further, when drilling, for example, the drill rod 4
When 4 contacts an obstacle such as a stone or a concrete shard, the direction of the piercing rod 44 changes and can escape, so that the piercing rod 44 can be prevented from being damaged.

The punching device 4 is removed from the fitting portion 15 together with the relay member 31. Then, the oil line is switched so that the hydraulic motor 21 of the vibration device 2 operates. If necessary, an appropriate amount of water and a soil improvement agent such as cement are put inside the perforated guide hole 81. The pile 7 is erected in the guide hole 81, and the arm 91 is operated to cover the fitting portion 15 on the upper portion of the pile 7. While operating the vibrating device 2 to vibrate the frame 1, the arm 91 is operated to press the pile 7 to guide the guide hole 81.
Embed along.

After the pile 7 is embedded to a predetermined depth, the hook 93 of the hanging wire 92 is hooked on a hooking wire (not shown) that is attached to the upper part of the pile 7 in advance to lift it. At this time, when the ground 8 is soft and the pile 7 can be easily removed, the soil improvement agent is again put in the hole where the pile 7 is removed, and the pile 7 is embedded.

The above-mentioned piles 7 are inserted and removed and the soil conditioner is repeatedly filled as necessary, and finally inserted when it becomes difficult for the piles 7 to come off. Further, since the soil improvement agent such as cement is put in the guide hole 81 and the pile 7 is embedded, after the construction, the soil solidified by the soil improvement agent adheres to the periphery of the pile 7 and the strength of the pile 7 becomes stronger. It becomes difficult to corrode and come off easily.

When the pile is a concrete pile, the upper corner is easily chipped, so a square-bottomed rectangular protective cap (not shown) is attached to the upper part, and the fitting part 15 is put on the protective cap. You can also The present invention is not limited to the illustrated embodiments, and various modifications can be made within the scope of the claims.

[0023]

The present invention having the above-mentioned structure has the following effects. (A) According to the embedding method of the foundation pile, the embedding attachment, and the pile embedding apparatus according to the present invention, it is possible to perform the boring work and the embedding work when embedding the pile in the ground with one work machine. it can. Therefore, even when the construction site is a narrow place such as a residential area, it is not necessary to replace the conventional working machine for each work, and the work efficiency is improved.

(B) In the embedding method in which the soil-improving agent is put in the perforated guide hole, after the construction, the soil solidified by the soil-improving agent adheres to the periphery of the pile, and the strength of the pile is increased. Since it becomes stronger and more difficult to come off, the strength as a foundation can be further improved.

(C) The punching device is attached to the frame through a universal joint. Accordingly, the punching device can be tilted in any direction to punch the ground. Further, when the punching device comes into contact with an obstacle such as a stone or a concrete fragment during drilling, the direction of the punching device changes and can escape, so that damage to the punching device can be prevented.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a pile embedding device according to the present invention.

FIG. 2 is an exploded perspective view of a main part of an embedded attachment.

FIG. 3 is an explanatory view showing a state in which guide holes are punched.

FIG. 4 is an explanatory view showing a state in which a pile is embedded.

[Explanation of symbols]

 B Pile embedding device 9 Working machine 91 Arm 92 Suspending wire 93 Hook 94 Link A Embedding attachment 1 Frame 11 Top plate 12 Bracket 13 Pin insertion hole 14 Base plate 15 Fitting part 16 Pin hole 2 Vibration device 21 Hydraulic motor 31 relay member 32 insertion pipe 33 bolt hole 34 pin 35 bolt 36 nut 4 punching device 41 base bracket 42 bolt hole 43 hydraulic motor 44 drilling rod 45 screw 46 stop portion 47 bolt 48 nut

Claims (4)

[Claims] 1. A method of embedding a foundation pile in the ground, the method comprising the step of boring a guide hole with a boring device detachably provided in a movable operating part of a working machine, the boring device from the movable operating part. Burying the piles along the guide holes by vibrating with a vibrating device to cover the fitting part provided in the movable operation part on the pile upper part, and embedding the pile for the foundation. Included method. 2. A method of embedding a foundation pile in the ground, the method comprising the step of boring a guide hole with a boring device detachably provided in a movable operation part of a working machine, wherein the guide hole is provided inside the guide hole. Step of adding soil improvement agent to solidify the soil, step of removing the punching device from the movable operation part, cover the fitting part provided in the movable operation part on the upper part of the pile, and vibrate it with the vibration device to guide the pile along the guide hole. The method for embedding a pile for a foundation, comprising: 3. An attachment for embedding a foundation pile in the ground, the attachment comprising a frame attachable to a movable operation part of a working machine, a vibration device provided on the frame, and the frame. A fitting part for covering the upper part of the pile, and a punching device detachably provided on the frame via a universal joint, wherein the punching device and the fitting part are selectively used. An attachment for embedding foundation piles. 4. A pile embedding device for embedding a foundation pile in the ground, which comprises a working machine, a vibration device provided in a movable operating part of the working machine, and the movable operating part. A fitting part for covering the upper part of the pile, which is provided, and a perforating device that is removably provided to the movable operating part via a universal joint, are provided. The perforating device and the fitting part are selectively used. A pile embedding device for foundation piles, which is characterized in that