JPS60144418A - Holder of pile in pile driver - Google Patents

Abstract

PURPOSE:To hold a pile at any inclined angle to every direction by a method in which a shaft is provided rotatably before and behind a support pin at the fulcrum on the tip of a rotator supported on a truck and a holder to support the pile is provided to the shaft. CONSTITUTION:A rotator 35 supported on a truck 34 is turned to correct the bilateral inclination of a shaft 39 supported on the tip of a bearing 37. Oil-pressure cylinders 42a and 42b are driven, and the shaft 39 is turned back and forth around a support pin 38 and set almost vertically. A pile 40 hung down by a crane is set on the holder 41 of the shaft 39, and the cylinders 42a and 42b are driven to tilt the pile 40 at a given angle. The rotator 35 is turned and the pile 40 is inclined toward a given direction.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pile holding device for a pile driver.

For example, if you are constructing a dam in a shallow sea, it is necessary to
With Pile Driving, there is no need to remove water from the soil as would be done with a piling boat, and you can drive piles into the soil of the piles that have already been driven! A method is known in which piles are successively driven into the underwater ground while supporting A and moving over the head of the head.

Figure 1 shows an example of the pile driver used in Doki Koden and the piles that were driven. In the figure, 1 indicates a pile driven into the underwater ground with the upper part exposed above the water. A large number of these piles l are arranged at predetermined intervals in the left-right direction of the drawing, and pairs of piles R and R are arranged in pairs at predetermined intervals in the front and back directions of the drawing. An engineering support beam 2 is installed between the upper ends of the piles 1.1 arranged in parallel in the front and back directions of the drawing, and a drive device 3 is installed on the end of the soil support beam 2 of each pile l. At the same time, a long feed girder (# girder) 4.4 spanning several drive devices [13] lined up in the left-right direction of the drawing is installed above the drive device 3, and the soil of the feed girder 4.4 is A joint beam 5 having a working floor 5 a fr: is attached to the upper surface straddling the feed girder 4.4.
Then, a holding device R is installed on this work floor 5a, and a pile is driven into the pile 1111j further to the left of the pile l at the left end of the drawing. In other words, a guide frame 6 with a guide rail is attached to the left end of the feed girders 4, 4 that protrude further to the left of the pile l at the left end of the drawing.
is installed horizontally, and a holding device Ai described below is attached to this guide frame 6 so as to be horizontally movable, and the work floor 5 is
A crane IO equipped with a boom 9 for hoisting the hammer 7 and the flying leader 8 is installed above, and the piles whose direction is regulated by the holding device A are driven under the feed girder 4.4 with the hammer 7. , After this driving, a support beam is erected on the pile, a drive device is installed on the soil, and then a g-drive device t3 shown in the drawing is installed.
..., moved the feed girders 4, 4 to the left side of the drawing, placed the feed girders 4, 4 on the newly installed drive device, and then repeated the work of driving the pile with the hammer 7, Drive the stakes one after another to the left of the drawing (.

Here, the holding device A includes a fixed frame 11 which is movably attached to the guide frame 6, and a shaft which is rotatably attached to the fixed frame 11 in a plane parallel to the plane of the drawing. It consists of a supported tilting frame 12, guide members 13 attached to the upper and lower parts of the tilting frame 12, and a hydraulic cylinder 14 attached to the fixed frame 11 and rotating the tilting frame 12, By tilting the guide member 13 at a predetermined angle using the hydraulic cylinder 14, the pile driving angle can be set.

By the way, when driving piles into underwater ground, it may be necessary to tilt the piles in various directions, so being able to set the driving angle as described above is essential. With holding device A, the pile cannot be supported tilted in a plane perpendicular to the plane of the drawing, and therefore conventional pile drivers cannot drive piles tilted in any direction. There were drawbacks.

This release #! A solves the above problem by having a hydraulic cylinder that rotates the °C pile back and forth around the support bin of the shaft body, and a revolving body that is equipped with this hydraulic cylinder and that rotates left and right in a vertical plane. ? The object of the present invention is to provide a pile holding device for a pile driver that can tilt the pile back and forth and left and right and hold it at any angle of inclination in all directions.

Hereinafter, the present invention will be explained in detail based on the drawings.

Figures 2 and 3 show an example of this invention.
In the figure, reference numerals 30 & 1 indicate a working floor, and 31 indicates a rail laid on the working floor. At the tip of the work floor 30 and on the rail 31, a traveling trolley 32 running in the length direction of the girder has wheels 32a pivoted on its lower surface, and is installed by, for example, a fixed jack. ing.

A pair of rails 33 are laid at a predetermined distance from each other at a right angle to the traveling direction of the traveling vehicle 320 at the tip of the traveling vehicle 32, and a crane A for suspending piles is arranged behind the rails 33. ing. A transverse truck 34, which travels at right angles to the traveling direction of the traveling truck 320, is mounted on L/-A/33 of the traveling truck 32 with its wheels 34a mounted thereon using fixing jacks or the like. The traversing truck 34 consists of a truck body 34b and the wheels 34a pivotally supported on the lower surface of the truck body 34b. Note that the front portion 34C of this truck body 34b and the tip portion 32b of the traveling truck 32 are connected to the tip portion 30a of the work floor 30.
It is provided almost in line with the tip of the girder.

On the other hand, a revolving body 35 that is rotatable within a range of, for example, 60° in a vertical plane and to the left and right with respect to the traveling direction of the traveling truck 340 is horizontally supported on the truck body 34b. Note that the truck main body 34b is equipped with a drive source that drives the rotating body 35. But'"cIitI
The rotating body 35 includes a rotating ring 36 that is pivotally supported by a truck body 34b, and a bearing 37 that supports a support plate 37a and a reinforcing plate 37b that project from the front of the rotating ring 36. In other words, at the front of this swivel ring 36.

A pair of substantially triangular support plates 37a are provided with their bottom sides solid and are disposed parallel to each other on the left and right sides of the center axis of the swivel ring 36, and a right triangular reinforcing plate 37b is provided. A rectangular portion 37cK formed at the tip of the support plate 37a is fixed at right angles to the outer surface of the support plate 37a and its bottom side to the pivot ring 36, respectively. An elongated hole 37d into which the support pin 38 is inserted is provided along the center axis of the revolving body 35 with its 70 long sides extending in a substantially horizontal direction.

A cylindrical shaft body 39 is inserted between the pair of forked plates 37a of the bearing 37 at right angles to the center thereof, and holds the support bin 38 therein. Hole:
47 d K inserter supported. In other words, the shaft body 39 has its support bin 38 as a fork point, and the 100 yen sandwiched by the pair of support plates 37a is moved forward and backward (traveling trolley 32
(progressing direction), and horizontally move back and forth along the length S of the elongated hole 37d. A reinforcing member 39 is provided around the opening of the support pin insertion hole of the shaft body 39.
is provided.

On the other hand, a pair of holders 41 for holding stakes 40 are housed at both ends of the shaft 390 in parallel with the shaft 39 and in front of the shaft 39a. Further, the shaft body 390 and its *src are connected by a pair of hydraulic cylinders 42a and 42b serving as expansion/contraction means and pivotably supporting seven piston rods 42C and d so as to be movable. Also, this hydraulic cylinder 42a.

The cylinders 42e and 42f of b are installed inside the pair of support plates 37a and at the front of the swivel ring 36.

The 391 shafts, that is, the piles 40 supported by the holder 41, are rotated by the driving force of the hydraulic cylinders 42a and 42b at a total angle of 60° with the support bin 38 of the shaft 39 at 30° in the front and back, for example. Becomes sloping in the range ℃
There is.

In other words, the stroke amount of the piston rods 42C and d is
The stakes 40 are set to be inclined within a range of 30° from - 3 to 3 with the support bin 38 as the center.

Note that this hydraulic cylinder 42 is located inside the swing ring 36.
A drive source for driving a and b is built-in.

Next, the operation of the pile holding device according to the present invention will be explained.

First, the rotating body 35 is rotated to correct the horizontal inclination of the shaft 39 supported at the tip of the bearing 37, and the hydraulic cylinders 42a and 42b are driven to rotate the shaft 39 around the support bin 38. The shaft 39 is rotated back and forth, the inclination of the front and rear of the shaft 90 is corrected by 1, and the shaft 39 is installed vertically.
Set it in the holder 4I of 9. After setting the stake 40 in the holder 41, the stake 40 is then tilted to a predetermined inclination angle.

For example, in order to tilt the pile 40 forward (to the left 1-j in the IP12 diagram), the piston rod 42Ci of the upper hydraulic cylinder 42a is extended, and the piston rod 42dl of the lower hydraulic cylinder 42b is contracted. Shaft body 39
Tilt forward with the support bin 381 as the center. To tilt the sway pile 40 backward, the hydraulic cylinders 42a and 42b are driven in the opposite direction.

Also, do not tilt the stake 40 forward or backward (
, in order to finely adjust the horizontal position of the pile 40 back and forth, use the shaft body 39.
The driving position of the pile 40 is adjusted by translating it in the horizontal direction lIh. In this case, the upper and lower hydraulic cylinders 42a,
42b piston rod) '42c, 42d? : All you have to do is expand and contract by the same stroke.

1j That is, the support pin 38 of the shaft body 39 is inserted into the long hole 3 of the bearing 37.
Since it is pushed in by 7 dK, the position of the pile 40 can be moved horizontally by the length S of this long hole 37d, and the driving position of the pile 40 can be finely adjusted according to the construction conditions at the site. It is now possible.

On the other hand, tilt the pile 40 to the left (rightward in Fig. 3).
To do this, the rotating body 35 may be turned counterclockwise (rightward in FIG. 3).

This revolving body moves 350 times, with 391 shafts, 40 piles.
rotates counterclockwise around the support bottle 38 and presses it. In order to tilt the pile 40 to the right, the rotating body 35 may be rotated in the opposite direction.

Moreover, since the cylinders 428 and f of the hydraulic cylinders 42a and 42b were installed on the rotating body 35, the hydraulic cylinders 42a and 42b?
: If the revolving body 35 is rotated at the same time as driving, the pile 40% will not only be tilted forward and backward, but also be set in advance to the left and right, diagonally forward, diagonally backward, etc.':ii,
It can be freely tilted in any direction within a predetermined angle range around the center pin 38.

In the above embodiment, the hydraulic cylinders 42a, b
The stroke length of the piston rod 420, d, and the rotation range of the rotating body 350 are set so as to tilt the 39 shafts, that is, the piles 40, by 30 degrees each in the front and rear directions, and by 30 degrees in the left and right directions. However, the stroke amount and rotation range may be adjusted as necessary to increase or decrease the longitudinal and lateral inclination angles. In addition, the expansion and contraction means are not limited to the hydraulic cylinders 42a and 42b (for example, a screw jack or the like may also be used.Also, the support bin 38 is provided approximately in the center of the shaft body 39 provided with the holder 41 at both ends; 38 may be provided outside the pair of holders 41 instead of inside. In this case, the support bin 3 may be provided in the long hole 37d of the bearing 37.
What is necessary is to change the mounting position of the bearing 37 to the rotating body 35 so that the bearing 37 can be inserted and hung.

As explained above, the pile holding device of the present invention includes a hydraulic cylinder that rotates back and forth as an axis around a support hinge, and a rotating body that is equipped with this hydraulic cylinder and drives left and right in a vertical plane. Because it is equipped with a holder on the shaft body, the pile held in the holder of the shaft body can be tilted forward and backward and left and right, and can be held at any angle of inclination in any direction.Moreover, the support pin can move inside the long hole of the bearing. This makes it possible to adjust the driving position of the pile by moving the pile horizontally in parallel, making it possible to drive the pile at a desired position with high precision in response to various construction conditions.

[Brief explanation of drawings]

Fig. 1 is a side view showing a conventional pile driver, Figs. 2 and 3 show an embodiment of the present invention, Fig. 2 is a side view of a pile holding device, and Fig. 3 is its side view. It is a front view. 341)...roller body, 35...swivel body, 37d.
...Elongated hole, 38...Support bottle, 39...Shaft, 40-° stake-41...Holder, 42a, b...
hydraulic cylinder. Applicant: Shimizu Corporation

Claims (1)

[Claims] A revolving body with a long hole at the tip and attached to the main body of the truck so that it can rotate from side to side within an almost vertical range, and a support bottle is inserted into the long hole (so that it can be freely moved back and forth). and a shaft body rotatably attached after m with the support bin as a fulcrum;
a pair of holders attached to the shaft and supporting the pile;
A pile characterized in that it is provided with one end connected to the rotating body and the other end connected to the shaft body, and comprising a pair of expansion and contraction means for moving the shaft body with the support bin as a fulcrum. A pile holding device in a driving machine.