JP7137971B2 - Pile member support and pile driver - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pile member support and a pile driver used when driving a pile member into a substantially horizontal ground, slope, or the like.

Conventionally, as a pile member support and a pile driver used when driving a pipe-shaped pile member into the ground, after moving the pile member to a predetermined position with a guide, the guide is released and the pile member is driven by a hydraulic hammer. A pile driver or the like for driving is known (Patent Document 1).
However, in such a pile driver or the like, the pile member is held so as to sandwich the outer peripheral portion of the pile member until it is moved to a predetermined position. Therefore, there is a drawback that the pile member moves and the striking force of the striking device or the like cannot be efficiently transmitted to the pile member.

In addition, there is also known a pile driving support tool that drives by striking the upper end of the pile member with a hammer or the like while holding the pile member. It was not possible to efficiently transmit it to the pile member (Patent Document 2).
In addition, Patent Document 2 also describes a support tool for pile driving that is attached to the upper end of the pile member like a cap, but there is a risk that the upper end of the pile member will be deformed by impact.

JP-A-2004-27548 JP 2008-45336 A

SUMMARY OF THE INVENTION In view of the conventional drawbacks as described above, it is an object of the present invention to provide a pile member support and a pile driver that can prevent deformation of pile members and facilitate pile driving.

In order to achieve the above object, the pile member support of the present invention includes a support body, a hit part formed on the upper surface of the support body, and a pile member formed on the bottom surface of the support body. It is composed of a pile member mounting portion to be mounted and a pile member holding means provided in the pile member mounting portion. and the inner peripheral surface of the one end of the pile member is also formed so as to substantially contact the wall surface of the pile member mounting portion .

The hit part of the pile member support according to claim 2 is provided with a pile driver attachment part that can be attached to a pile driver.
The pile member holding means of the pile member support according to claim 3 is characterized by holding the pile member in a clamped state by means of a hydraulic cylinder.

A pile driver according to claim 4 is a pile driver that strikes a pile member with an impact device and drives it into the ground, wherein the impact device is provided with a pile member support, the pile member support comprising a support body, A hitting part formed on the upper surface of the support body and attached to the striking device, a pile member mounting part formed on the bottom surface of the support body and mounting a pile member, and a pile member mounting part provided on the pile member mounting part In the pile member mounting portion, the outer peripheral surface of one end of the pile member substantially abuts the wall surface of the pile member mounting portion, and the one end of the pile member is inside the pile member. The peripheral surface is also formed so as to substantially abut against the wall surface of the pile member mounting portion .

The pile member holding means of the pile driver according to claim 5 is characterized in that the pile member is held in a sandwiched state by a hydraulic cylinder.

As is clear from the above description, the present invention has the following effects.
(1) In each invention according to claim 1 and claim 4, the dimensional difference between the outer diameter of the pile member mounting portion and the outer diameter of the pile member is set to be minute, and the pile member mounting Since the dimensional difference between the inner diameter of the portion and the inner diameter of the pile member is set to be very small, the upper end portion of the pile member is substantially abutted, and deformation of the upper end portion of the pile member can be prevented.
(2) In addition, since the upper end of the pile member enters the groove-shaped pile member mounting portion and the pile member is held by the pile member holding means, it is possible to efficiently apply the impact force to the pile member while holding the pile member. can be done.
(3) In the invention described in claim 2, the same effects as (1) to (2) can be obtained, and it can be used by being attached to a pile driver.
(4) In the inventions of claims 3 and 5, the same effects as those of (1) to (3) can be obtained, and the pile members can be easily held.

1 to 8 are explanatory diagrams showing the first embodiment of the present invention.
9 to 11 are explanatory diagrams showing the second embodiment of the present invention.
The top view of the pile member support of 1st Embodiment. The front view of a pile member support. The bottom view of a pile member support. 4-4 line sectional view of FIG. 1. FIG. The front view of the state which attached the pile member. 6-6 line cross-sectional view of FIG. Explanatory drawing of the pile driver of 1st Embodiment. Explanatory drawing of the state of use. The top view of the pile member support of 2nd Embodiment. A vertical cross-sectional view of a pile member support. Explanatory drawing of the pile driver of 2nd Embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail by means of embodiments for carrying out the present invention shown in the drawings.
In the first embodiment of the present invention shown in FIGS. 1 to 8, 1 is a pile member support used when driving a pipe-shaped pile member 3 into a ground 2 including a slope such as a slope. 1 to 4, the pile member support 1 includes a support body 4, a hit part 5 on the upper surface of the support body 4, and a bottom surface (lower surface) of the support body 4. It is composed of a pile member mounting portion 6 for mounting the pile member 3 and a pile member holding means 7 provided in the pile member mounting portion 6 .

The hit portion 5 is the upper surface of the support body 4, and in this embodiment, a recessed pile driver mounting portion 8 is provided. A rod 11 and the like of a striking device 10 of a pile driver 9 are inserted into the pile driver attachment portion 8 and attached. As for the mounting method, it may be attached detachably with a bolt or the like, or it may be fixedly attached to the rod 11 by welding or the like.

Note that the pile driver mounting portion 8 may be formed in a convex shape, or may be a substantially flat pile driver mounting portion 8 . Moreover, when not attached to the pile driver 9, the hitting portion 5 may be substantially flat without providing the pile driver attachment portion 8. As shown in FIG.

The pile member mounting portion 6 is provided on the bottom surface of the support tool main body 4 and is formed in an annular shape having substantially the same cross-sectional shape as the pile member 3 in this embodiment.

The outer diameter dimension (outer diameter) of the pile member mounting portion 6 as the annular groove portion is substantially the same as the outer diameter dimension (outer diameter) of the pipe-shaped pile member 3, or the dimensional difference is very small. The inner diameter (inner diameter) of the pile member mounting portion 6 corresponding to the annular portion is substantially the same as the inner diameter (inner diameter) of the pipe-shaped pile member 3. formed to be minute.

By forming in this way, the outer peripheral surface of one end of the pile member 3 is substantially in contact with the wall surface of the pile member mounting portion 6, and the inner peripheral surface of the one end of the pile member 3 is also the wall surface of the pile member mounting portion 6. approximately abuts on.
Here, the term "substantially in contact" includes a state in which they are in close contact and a state in which they are close to each other with a slight gap.

With such a pile member mounting portion 6, both the inner and outer peripheral surfaces of the pile member 3 are protected. The pile member 3 can be driven into the ground such as a slope without deforming the upper end of the pile member.

In this embodiment, the pile member holding means 7 includes a through hole 12 formed around the pile member mounting portion 6 and an operating rod 13 passing through the through hole 12. It is constituted by a hydraulic cylinder 14 provided. Although only one hydraulic cylinder 14 is used in this embodiment, a plurality of hydraulic cylinders 14 may be used to hold the pile member 3 .

By pressing the vicinity of the upper end portion of the pile member 3 inward with the operation rod 13 of the hydraulic cylinder 14, the vicinity of the upper end portion of the pile member 3 is held so as to be pinched.

By the way, as shown in FIGS. 5 and 6, the upper end of the pile member 3 is in contact with the top surface (upper surface) of the groove-shaped pile member mounting portion 6 when attached to the pile member mounting portion 6. It has become. In this way, while the upper end of the pile member 3 is in contact with the upper surface of the groove-shaped pile member mounting portion 6, and by pressing the pile member 3 from the circumferential direction to hold the pile member 3, the striking device 10 When hitting the hit part 5 (in this embodiment, the pile driver mounting part 8 formed in the hit part 5) and driving the pile member 3 into the ground 2, the striking force is efficiently applied to the pile member 3 I can tell you.

This pile member support 1 is usually used by being attached to a striking device 10 of a pile driver 9 . In this embodiment, a hydraulic breaker 10 serving as a striking device 10 provided via a hydraulic arm 15 is attached to the pile driver 9 in such a manner that a rod 11 (chisel) or the like is inserted therein.

As shown in FIG. 7, such a pile driver 9, in this embodiment, has a vehicle body 17 equipped with a traveling device 16 using an endless track, and a working cab 18 provided on the upper part of the vehicle body 17. A table 19, the hydraulic arm 15 provided on the work table 19, a striking device 10 provided at the tip of the hydraulic arm 15, a pile member support 1 attached to the striking device 10, and the vehicle body 17 and a pair of winches 20 provided.

That is, the pile driver 9 is equipped with a winch 20 and has a form like a so-called backhoe with an impact device 10 attached thereto. It is possible to carry out piling on the top. By the way, the winch 20 does not have to be provided when the construction work is carried out on flat ground. Also, the travel device 17 may be a tire instead of the endless track.

When the pile driver 9 of the present embodiment is used on the slope 2 or the like, the wire 21 of the winch 20 is fixed to the anchor 22 on the top of the slope 2 so as to have a substantially inverted V shape in plan view. The winch 20 is hoisted, the traveling device 16 is operated, and the pile driver 9 is positioned at a predetermined position on the slope 2. - 特許庁After that, as shown in FIG. 8, the striking device 10 is operated to drive the pile member 3 into the slope 2 substantially vertically.

At this time, the pile member 3 can be set on the slope 2 while the pile member 3 is held by the pile member holding means 7, and the upper end of the pile member support 1 is in contact with the upper surface of the pile member mounting portion 6. Since the pile member 3 is attached in a state in which the pile member 3 is bent, the deformation of the pile member 3 can be prevented, and the impact force can be efficiently transmitted.

[Different modes for carrying out the invention]
Next, different modes for carrying out the invention shown in FIGS. 9-11 will be described. In describing these different modes for carrying out the present invention, the same components as those in the first mode for carrying out the present invention are denoted by the same reference numerals, and duplicate descriptions are omitted.
In the second embodiment for carrying out the present invention shown in FIGS. 9 to 11, the main difference from the first embodiment for carrying out the present invention is that a square pipe-shaped pile member 3A is used. In that the pile member mounting portion 6A is formed in a rectangular groove that has substantially the same shape as the cross-sectional shape of the square pipe-shaped pile member 3A, even with such a pile member support 1A, the above-mentioned book Effects similar to those of the first mode for carrying out the invention can be obtained.

In addition, as shown in FIG. 11, the pile driver 9A of the present embodiment is provided with a vehicle body 17 having a traveling device 16 using an endless track, and the vehicle body 17 so as to be rotatable in the left-right direction. a guide shell mounting portion 24 provided on the arm 23 so as to be rotatable in the vertical direction; a guide shell 25 fixed to the guide shell mounting portion 24; It is composed of an impact device 10 that can be provided, a pile member support 1A attached to the impact device 10, and a pair of winches 20 provided on the vehicle body 17. As shown in FIG.
In the embodiment of the present invention, the pile driver is used by attaching the pile member support. Alternatively, the pile member may be driven in manually by setting it in a predetermined position and hitting the hit part with a hammer or the like.

In addition, although a hydraulic cylinder is used as the pile member holding means, a cylinder or solenoid operated by a non-hydraulic pressure may be used, or a mechanism similar to a lathe chuck may be used to hold the pile member. .

As described above, the pile member support of the present invention includes a support body, a hit part formed on the upper surface of the support body, and a bottom surface of the support body, and the pile member is attached. and a pile member holding means provided in the pile member mounting portion, and the pile member mounting portion substantially contacts the outer peripheral surface of the one end side of the pile member, and It is characterized by substantially abutting also on the inner peripheral surface on the one end side of the pile member.

INDUSTRIAL APPLICABILITY The present invention is used in industries that perform work such as driving pile members into the ground such as a slope.

1, 1A: pile member support, 2: ground,
3, 3A: pile member, 4: support body,
5: hit part, 6, 6A: pile member mounting part,
7: pile member holding means, 8: pile driver mounting portion,
9, 9A: pile driver, 10: impact device,
11: rod, 12: through hole,
13: operating rod, 14: hydraulic cylinder,
15: hydraulic arm, 16: travel device,
17: vehicle body, 18: cab,
19: workbench, 20: winch,
21: wire, 22: anchor,
23: arm, 24: guide shell mounting portion,
25: Guide shell.

Claims (5)

A support body, a hit portion formed on the upper surface of the support body, a groove-shaped pile member mounting portion formed on the bottom surface of the support body and mounting a pile member, and the pile member mounting portion It consists of a pile member holding means provided,
In the pile member mounting portion, the outer peripheral surface of one end portion of the pile member substantially abuts the wall surface of the pile member mounting portion, and the inner peripheral surface of the one end portion of the pile member also contacts the wall surface of the pile member mounting portion. A stake member support configured to substantially abut . 2. The pile member support according to claim 1, wherein the hit part is provided with a pile driver attachment part that can be attached to a pile driver. 3. The pile member support according to claim 1, wherein the pile member holding means holds the pile member in a sandwiched state by means of a hydraulic cylinder. A pile driver that strikes a pile member into the ground with a striking device, wherein the striking device is provided with a pile member support, the pile member support is formed on a support body and an upper surface of the support body, A hit part attached to the striking device, a groove-shaped pile member mounting part formed on the bottom surface of the support body for mounting the pile member, and a pile member holding means provided in the pile member mounting part configured,
In the pile member mounting portion, the outer peripheral surface of one end portion of the pile member substantially abuts the wall surface of the pile member mounting portion, and the inner peripheral surface of the one end portion of the pile member also contacts the wall surface of the pile member mounting portion. A pile driver configured to substantially abut . 5. The pile driver according to claim 4, wherein the pile member holding means holds the pile member in a pinched state by means of a hydraulic cylinder.

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