JPH0543808B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a traveling device for a pile driving device for constructing the foundations of structures such as bridge abutments and scaffolding for oil drilling.

[Prior Art] The work of driving piles when constructing the foundation of a structure has been carried out by the pile driving method as shown in FIG.

That is, a pile driving boat 1 is loaded with a pile 2, the pile 3 is held so that it can be driven along the pile 2, and the pile 3 is struck and driven by a hammer 4 guided by the pile 2.

Such conventional construction methods are greatly affected by weather and ocean conditions, and pile driving cannot be carried out under bad weather or conditions. Therefore, there was a problem that the operating rate of the pile driving vessel was low and the construction period was long.

[Problems to be Solved by the Invention] In view of the above-mentioned circumstances, the present invention enables piling work to be performed without being affected by weather, ocean conditions, etc.

[Means for Solving the Problems] The present invention provides rails extending in the front-rear direction of the platform to be supported and fixed to the lower surface of the platform, and driving rails extending in the width direction of the platform and arranged in parallel with each other. a plurality of support beams that can be supported by the piles that have been installed, a frame that rests on the top surface of each support beam, and a jack that can push each frame upwardly relative to the support beam on which it rests; A wheel rotatably supported on each frame by an axis substantially horizontal in the width direction of the platform and capable of abutting on the rail from below, and a wheel provided on each frame and driving the wheel supported by the frame. and a fixed pedestal that is provided on the upper surface of each of the support beams and is capable of supporting the platform.

[Examples] Examples of the present invention will be described below with reference to the drawings.

3a in Figure 1 is the pile that has already been driven,
b is the pile to be driven from now on.

The cast piles 3a are arranged in at least two rows, and the cast piles 3a in each row are arranged so as to face each other.

Traveling devices 5 are installed at the frontmost position and at the two sets of already cast piles 3a, 3a, which are spaced apart from each other by a required distance.
A, 5b are spanned, and a platform 6 is mounted on the traveling devices 5a, 5b. The platform 6
A crane 7 for hoisting and transporting the pile and suspending and holding the hammer 4 is movable.
Further, a pile holder 9 is provided on the front side of the platform 6. The pile holder 9 is connected to the platform 6
A transverse beam 10 is hung over a support beam 10 that can be moved in and out of the pile, and the pile 3b can be held in either an inclined or vertical position, and can be held in either an inclined or vertical position. The position can be easily changed both forward and backward, left and right.

The platform 6, crane 7, etc. are the traveling device 5.
Since it is supported by the already driven piles 3a and 3a via the piles a and 5b, extremely stable pile driving work can be performed without being affected by weather or ocean conditions. pile 3b
When the driving is completed, another running device (not shown) is hung over the pile 3b, and the running device 5
a and 5b to move the platform 6 forward. The front part of the platform 6 is connected to the pile via a traveling device (not shown) (in a state where the pile placement is completed).
3b, the traveling device 5b on the rear side is removed.

If the traveling device is relocated as pile driving progresses, the pile driving device itself can be moved as the work progresses, and new pile driving work can be performed.

As described above, the pile driving device is supported directly on the ground through the pile, which improves the safety of the pile driving operation and improves the operating rate without being affected by weather or ocean conditions.

Next, the traveling device will be further explained using FIGS. 2 to 7.

A support beam 11 is hung around the driving piles 3a and 3b, and a pair of left and right drive units 12 and guide units 13 are provided on the support beam 11. In the figure, 14 indicates the main beam of the platform 6.

First, the drive unit 12 will be explained.

A thrust bearing shaft 15 is installed directly below the drive unit 12, and a ring 16 that is slidable in the vertical direction is fitted onto the thrust bearing shaft 15. A frame 17 is tilted to the ring 16 via a pin 18. Install freely. Further, between the support beam 11 and the frame 17, 3 sets of hydraulic jacks 19 in total, and 1 set of hydraulic jacks 19 in total, and 1 set of wedge devices 2 in total, are arranged symmetrically with respect to the axis of the pin 18.
Set 0. The drive shaft 2 is located at the center of the frame 17.
1 is provided rotatably, and shafts 22, 22 are mounted symmetrically before and after the drive shaft 21. Two sets of wheels 24 to which gears 23 are fixed are rotatably attached to the shafts 22, 22, respectively, and the wheels 24 can come into contact with a rail 25 laid on the lower surface of the main beam 14. The drive shaft 21 has two pinions 26 that mesh with the gear 23.
A driven sprocket 28 is fitted onto the protruding outer end of the drive shaft 21. A motor 29 including a brake and a speed reducer is attached to the front surface of the frame 17, and a drive sprocket 30 fitted to the main shaft of the motor 29 and the driven sprocket 28 are connected by a chain 31.

Next, the guide unit 13 will be explained.

The upper surface of the fixed pedestal 32 has two levels, and the side rollers 3 are mounted on a support shaft 33 mounted perpendicularly to the upper level.
4 is rotatably attached, and two pairs of wedge devices 35, 35 facing each other are provided on the lower surface. The side roller 34 rollably contacts the side surface of the main beam 14,
The wedge devices 35, 35 are adapted to come into contact with the lower surface of the main beam 14.

Next, the operation will be explained.

When moving platform 6, jack 1
9 is extended to bring the wheels 24 into contact with the rails 25,
In addition, each drive unit 12 is leveled. When the leveling of each drive unit 12 is completed, the wedge device 20 is adjusted and the platform 6 is connected to the already driven pile 3 via the wheels 24, the frame 17, and the wedge device 20.
Make sure it is supported by a. Also, guide unit 1
The wedge device 35 of No. 3 is operated to separate the two.

When the motor 29 is driven in this state, the gear 23 and the wheel 2 are connected via the drive sprocket 30, chain 31, driven sprocket 28, and pinion 26.
4 can rotate as one and move the platform 6. When the platform 6 has been moved the required amount, the motor 29 is stopped and the wheels 24 are restrained.
Next, the wedge device 35 is operated so that the platform 6 is supported via the guide unit 13.

Thus, if the pile driving work is performed, an excessive load during pile driving will not be applied to the wheels 24, etc., and the wheels 24, wheel bearings, etc. will not be damaged.

When the platform 6 passes the rear traveling device 5b, the drive unit 12 and the guide unit 1
When the wedge devices 20 and 35 of No. 3 are in a lowered state and the platform 6 moves further forward, the traveling device 5b
Re-install it on pile 3 where you have finished driving.

As the pile driving work moves, the platform 6 can be moved by changing the traveling device and operating the traveling device according to the above-described procedure.

In the above device, the frame 17 is made tiltable in order to equalize the load applied to the wheels 24.

[Effects of the Invention] As described above, according to the present invention, (i) the pile driving device is supported directly on the ground by the already driven piles, so it is not affected by weather or ocean conditions; (ii) ) Enables safe and reliable pile driving; (iii) Improves operating efficiency; (iv) Since the traveling device is unitized, it is easy to handle and transport, and can be used regardless of the size of the platform. (v) When driving piles, the wheels are moved away from the rails and the platform is supported by a fixed frame, which provides excellent effects such as no damage to the wheels or drive device due to impact.

[Brief explanation of the drawing]

FIG. 1 is an overall schematic diagram of a pile driving device preferable for carrying out the present invention, FIG. 2 is a front view of the device according to the present invention, FIG. 3 is a detailed view of section A in FIG. 2, and FIG. 3, FIG. 5 is a view along arrow C in FIG. 4, FIG. 6 is a view along arrow D in FIG. 3, FIG. 7 is a view along arrow E in FIG. 4, and FIG. is an explanatory diagram of a conventional example. 3, 3a, 3b are piles, 5, 5a, 5b are traveling devices, 11 is a support beam, 12 is a drive unit, 13 is a guide unit, 17 is a frame, 1
9 is a hydraulic jack, 20 is a wedge device, 24 is a wheel,
25 is a rail, 29 is a motor, and 32 is a fixed frame.

Claims (1)

[Claims] 1. A rail extending in the longitudinal direction of the platform to be supported and fixed to the underside of the platform, and a plurality of support beams extending in the width direction of the platform and capable of being supported by piles placed in parallel, respectively; a frame mounted on the upper surface of each support beam; a jack capable of pushing each frame upwardly relative to the support beam on which the frame is mounted; a wheel rotatably supported by a shaft and capable of contacting the rail from below; a drive device provided on each frame for driving the wheel supported by the frame; 1. A traveling device for a pile driving device, comprising a fixed pedestal that is provided and capable of supporting the platform.