JP2631962B2 - Pile press-in / pull-out machine - 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 press-in / pull-out machine for arranging piles and pressing them into the ground in order to construct a pile-row, and more particularly to a pile press-in / pull-out machine suitable for constructing a curved pile-row.

[0002]

2. Description of the Related Art There is known a pile press-in / draw-out machine which presses a new pile into the ground while moving on an existing pile to construct a pile row. In this pile press-in / pull-out machine, a clamp for clamping an existing pile is suspended from a saddle, and the clamp clamps the pile to receive a reaction force when the pile is pressed. A slide base that is relatively movable in the pile row direction is attached to the saddle, and a chuck is attached to a mast erected on the slide base so as to be vertically movable. The chuck clamps the new pile and descends to press-fit the new pile.

[0003] This pile press-in and pull-out machine, after press-fitting a new pile,
With the chuck holding the pile, the clamp releases the holding of the existing pile, the saddle advances one pile, and the clamp holds the corresponding existing pile. Then, the holding by the chuck is released, the slide base advances by one pile, and the chuck presses in a new pile at that position. In this way, piles are sequentially inserted while moving on existing piles, and pile rows are constructed.

[0004]

In the above-described construction of the pile row, it is necessary to press-fit the pile along a predetermined scheduled line. When the pile row extends linearly, the press-fitting position of the pile is clear. The press fit is easy. However, when the pile row is bent, it is necessary to change the press-fitting position of the pile each time. For this reason, every time the pile is pressed, it is necessary to find the normal of the pile row using a beam and a water thread, and to set the pile with the posture aligned on the normal, which is troublesome. ,
It took a long time and the work efficiency was reduced.

The present invention has been made in consideration of the above circumstances, and it is easy to set a normal line even when a pile row extends linearly, and even when the pile row extends in a curved manner, so that a pile press-in operation can be performed. An object of the present invention is to provide a pile press-in and pull-out machine that can be efficiently performed.

[0006]

In order to achieve the above object, a pile press-in / pull-out machine according to the present invention firstly inserts a new pile in a state where an existing pile is sandwiched, and forms a pile row by successively inserting new piles. And a plurality of guide plates attached to the main body having a guide surface set to match the traveling direction of the pile row, and guiding a new press-fit along the guide surface,
Second, the guide plates are connected in the row direction, and adjacent guide plates can be adjusted in angle with each other. Secondly, the piles are formed by sequentially inserting new piles while holding the existing piles. And a guide plate attached to the main body and having a guide surface for guiding press-fitting of a new pile , a light emitting portion is provided at a tip portion of the guide plate, and a pile row to be constructed is provided.
The direction of the guide plate is selectably mounted so that a light beam enters a target placed at the end of the line .

[0007]

According to the present invention, a plurality of guide plates while connected to the pile row direction, since it was possible mutual angular adjustment of the adjacent guide plates, each guide without requiring replacement of the guide plates
The plate can be aligned with the traveling direction of the pile line .

Further , a light emitting portion is provided at a tip portion of the guide plate, and the direction of the guide plate is selectably mounted so that the light beam enters a target placed at the end of a line of a pile row to be constructed . Therefore, the guide plate is
Matching , this guide plate guides the pile to achieve high accuracy
Can be press-fitted .

[0009]

FIG. 1 shows a reference example of a pile press-in / pull-out machine . This pile press-in / draw-out machine includes a plurality of clamps 1 for holding a plurality of existing piles P and a chuck 2 for press-fitting a new steel pipe pile PO. The clamp 1 hangs from the saddle 3, and a slide base 4 that moves relatively in the pile row direction at least at least one pitch of the existing pile P is mounted on the saddle 3. A mast 5 is provided upright on the slide base 4, and a guide rail 6 is provided in front of the mast 5 in a vertical direction. The elevating body 7 can move up and down along the guide rail 6, and the chuck 2 is attached to the elevating body 7. The elevating body 7 is moved up and down by a main cylinder 8 driven by fluid pressure.
The press-fit of a new pile PO is performed by the descent of the elevating body 7. When the lifting body 7 is lifted while the chuck 2 is holding the pile, the pile can be pulled out. The clamp 1, the chuck 2, the saddle 3, the slide base 4, the mast 5, the elevating body 7, and the main cylinder 8 form a main body of the pile press-in / pull-out machine.

In addition to the above configuration, a guide plate 10 is attached to the main body. The guide plate 10 is attached so as to be located at a position where a new pile PO is press-fitted. In the illustrated example, the guide plate 10 is attached to the clamp 1 closest to the chuck 2 via the bracket 9. Similarly, it may be attached to the saddle 3.

The guide plate 10 guides when a new pile is press-fitted. FIG. 2 shows the operation of the guide plate 10, and one side surface of the guide plate 10 is a guide surface 11. The guide surface 11 is set in accordance with the traveling direction of the line of the pile row to be constructed, and a new pile is pressed into the ground while sliding on the guide surface 11. In the illustrated example, the first guide portion 11a and the second guide portion 11
The guide surface 11 is formed by connecting b with the pile row direction. The first guide portion 11a provides guidance when press-fitting the preceding pile P, and the second guide portion 11b provides guidance when press-fitting a new pile PO. In this case, the second guide part 11b is bent at a predetermined angle with respect to the first guide part 11a, and the new pile PO press-fitted along the second guide part 11a is connected to the former pile P. It is press-fit into the position shifted by that angle. After the press-fitting of the new pile PO, the first guide 11a is brought into contact with the new pile PO, and a new pile (not shown) is press-fitted along the second guide 11b. Hereinafter, a curved pile row can be constructed by repeating these operations. The piles to be press-fitted are not limited to H steel piles, steel sheet piles, steel pipe piles, concrete sheet piles,
It can be applied to any pile such as PC wall.

In a pile press-in / draw-out machine having such a guide plate 10, a pile is press-fitted along a guide surface 11 in accordance with the traveling direction of the line of the pile row, so that the pile is inserted into a target pile row line. It can be pressed together. For this reason, it is not necessary to adjust the posture of the pile by performing a normal line every time the pile is pressed in, so that the pile press-in operation can be performed easily and accurately.

FIG. 3 shows an embodiment of the present invention. In this embodiment, a plurality of guide plates 10 and 10 are connected to each other, and these are connected to a bracket 9.
Bracket 9 and guide plate 10 and guide plates 10 and 10
The mutual connection is performed via a rotating shaft 13 having a two-axis structure, so that the whole of the plurality of guide plates 10 and 10 can be adjusted in angle with respect to the bracket 9.
The angle between the guide plates 10 and 10 can be adjusted.
Reference numeral 14 denotes the bracket 9 and the guide plate 1 on the bracket 9 side.
This is a fluid pressure cylinder that is stretched between zero and between the adjacent guide plates 10 and 10, and performs the above-described angle adjustment by the expansion and contraction operation.

In the present embodiment, the press-fitting of the pile is guided by sliding the pile along the guide surface 11 of the guide plate 10. It can be adjusted and the guide plates 10, 1
0 can adjust the angle. Therefore, the guide plates 10, 10 can be made to coincide with the traveling direction of the line of the pile row to be constructed. Therefore, adjustment can be performed according to various traveling directions of the pile row, and it is not necessary to replace the guide plate according to the traveling direction of the pile row.

FIG. 4 shows another embodiment of the present invention. In this embodiment, the laser oscillator 16
Is attached, and laser light is emitted from the laser oscillator 16. Reference numeral 17 denotes a line of a pile row to be constructed, and a target 18 such as a light receiver for receiving a laser beam is disposed at the end of the line 17. In this embodiment, the mounting position of the guide plate 10 is selected so that the laser light emitted from the laser oscillator 16 is incident on the target 18. As a result, the guide plate 10 coincides with the line 17 of the pile row, so that the guide surface 11
And PO can be pressed in while guiding. In this embodiment, since the normal of the pile press-fitting is performed by the laser beam, there is an advantage that the pile can be press-fitted with higher precision. In this embodiment, the normalization may be performed using a light beam other than the laser beam.

[0016]

According to the pile press-in / pull-out machine of the present invention, a plurality of guide plates are connected in the pile row direction, and adjacent guide plates can be mutually adjusted in angle, so that there is no need to replace guide plates. Each guide plate matches the traveling direction of the pile row line
It is possible to make.

Further , a light emitting portion is provided at a tip portion of the guide plate, and the direction of the guide plate is selectably mounted so that the light beam enters a target placed at the end of the line of the pile row to be constructed . Therefore, the guide plate is
Matching, this guide plate guides the pile to achieve high accuracy
Can be press-fitted .

[Brief description of the drawings]

FIG. 1 is an overall side view of a reference example of a pile press machine .

FIG. 2 is a plan view of a guide plate.

Figure 3 is a plan view of a guide plate of Example

FIG. 4 is a plan view of a guide plate according to another embodiment .

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clamp (body) 3 Saddle (body) 9 Bracket 10 Guide plate 11 Guide surface 13 Rotating shaft 16 Laser oscillator (Launcher) 18 Target P Pile PO New pile

Claims (2)

(57) [Claims] 1. A body for forming a row of piles by successively press-fitting new piles with an existing pile held therebetween, and the main body having a guide surface set to coincide with the traveling direction of the pile row. And a plurality of guide plates for guiding new press-fitting along the guide surface, and connecting these guide plates in the pile row direction and allowing adjacent guide plates to be mutually adjustable in angle. Characteristic pile press-in and pull-out machine. 2. A main body for forming a row of piles by successively press-fitting new piles while holding an existing pile, and a guide plate attached to the main body and having a guide surface for guiding press-fitting of new piles. The guide plate is provided with a light emitting portion at the tip portion thereof, and the direction of the guide plate is selectably mounted so that the light beam enters a target placed at the end of the line of the pile row to be constructed. Characteristic pile press-in and pull-out machine.