JPH08232263A - Pile driving method and device for press fitting and drawing out pile - Google Patents

Abstract

PURPOSE: To systemize a device which press fits a pile while injecting a water jet. CONSTITUTION: A machine 1 for press fitting and drawing out piles press fits a new pile P1 while moving on another pile P, and a jet nozzle 10 injects a water jet into the ground. A driving unit 21 which supplies power to the machine 1 for press fitting and drawing out piles, and a jet unit 22 which supplies the water jet to the jet nozzle 10 are moved integrally by a crawler 28. A hose 11 connecting the jet unit 22 to the jet nozzle 10 is wound onto a reel 33 and is rolled in such a way that it can be taken out, so as to facilitate processes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for driving a pile while jetting jet water to the ground and a pile press-in / pull-out device used in this method, and more particularly to systematize jet water injection and pile driving. The present invention relates to a pile press-fitting / pulling-out device having a structure.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional system for press-pulling and extracting piles by using jet water injection. In this system, while the pile press-fitting / pulling machine 100 moves on the pile P that has been placed,
A new pile P1 is placed, and jet water is jetted to the ground during this placement. Jet water jet is a new pile P
1 is equipped with a jet pipe 120, and jet water is supplied to the jet pipe 120. In such a pile press-in / pull-out system, a drive unit 130 for generating power to the pile press-in / pull-out machine 100 and a jet unit 140 for generating jet water are required.

The drive unit 130 is a pile press-fitting / pulling machine 100.
Following the movement of, it is supposed to move on the ground,
It has a crawler 110 for that purpose. Crawler 11
A box 150 is placed on the 0, and the box 15
A power generating member (not shown) such as an engine and a hydraulic pump is arranged in the zero position. The drive unit 130 is connected to the pile press-fitting / pulling machine 100 via a cable 160, and supplies the generated power to the pile press-fitting / pulling machine 100.

The jet unit 140 is installed on the ground and is connected to a jet pipe 120 attached to a new pile P1 via a hose 170. The jet unit 140 has an engine 180 and a jet pump 190 arranged therein, and by driving these, jet water is generated and supplied to the jet pipe 120. The jet unit 140 is connected to the water tank 200 to supply water. Water is supplied from a pump 210 immersed in a water source 220 to the water tank 200, and the water tank 200 is managed so that the amount of water can be secured.

[0005]

The conventional pile press-fitting / pulling-out system has the following problems. Jet unit 140 and water tank 2 installed on the ground
00 must be moved with the movement of the pile press-fitting / pulling machine 100, and a crane is used for this movement.
However, movement by a crane is difficult, especially because the jet unit 140 has a weight of about 3 tons, and it takes a lot of labor and time to move. The hose 170 that connects the jet unit 140 and the jet pipe 120 needs to be long, which makes it difficult to handle and is a cause of cluttering the work site. Since the drive unit 130 of the pile press-fitting / pulling machine 100 and the jet unit 140 that generates jet water are separate systems, it is necessary to monitor them separately. Therefore, a worker is required for that purpose, and there is a limit to labor saving. There are many series of connection work, and a lot of labor and time are required for connection. The present invention has been made in consideration of such circumstances, and by assembling the work of placing a pile while jetting jet water in a systematic manner, the work efficiency can be improved and labor saving can be achieved. An object is to provide a driving method and a pile press-fitting / pulling-out device used in this method.

[0006]

According to the driving method of the present invention, a pile press-fitting / pulling machine drives a pile while moving the pile, and
In the pile driving method of injecting jet water from the pile to be driven to the ground, the power of the pile press-in / pull-out machine and the jet water generating power are generated from a single power unit, and the power unit is It is characterized in that it is moved along with the movement of the pile press-in / pull-out machine. In this method, a pile press-in / pull-out machine is provided with a reel that can be undulated, and a hose that guides jet water to a jet nozzle is wound around this reel, and the reel is tilted so as to match the jet line of the jet water. Rotate the reel in the winding direction to disconnect the hose from the jet nozzle. The pile press-in / pull-out device of the present invention is a pile press-in / pull-out machine that drives a pile while moving on the pile, a jet nozzle that is attached to the pile to be installed and jets jet water to the ground, and the pile press-in / pull-out machine. A power unit for generating power to be supplied to the jet nozzle and distributing the power as jet water generation power to be supplied to the jet nozzle, and a movement for traveling with the movement of the pile press-in / extractor equipped with this power unit. A vehicle, a hose connecting the power unit and the jet nozzle, and a reel mounted on the pile press-fitting / pulling machine so that the hose can be wound and pulled out. Further, in the present invention, an undulating device is attached to the pile press-fitting / pulling machine, and the reel is mounted on the undulating device.

[0007]

The power unit having the above structure generates power for driving and moving the piles by the pile press-in / pull-out machine. In this power unit, the generated power can be distributed also as the power for jet water generation, and thus the power for the pile press-fitting / pulling machine and the power for jet water generation can be generated by a single power unit. Therefore, it is only necessary to monitor the power unit, and labor can be saved.

Further, the power unit is mounted on a moving vehicle and can move integrally with the moving vehicle. Therefore, a crane for moving the power unit is not needed, and the power unit can be moved easily. Moreover, since the hose is wound around the reel mounted on the pile press-in / pull-out machine, the hose does not become a cause of clutter, and the treatment and management thereof are easy.

In the above construction, the reel attached to the pile press-in / pull-out machine is tilted, the hose pulled out from the reel is aligned with the jet line of the jet water, and the reel is rotated in the winding direction in this state, whereby the hose is rotated. Is taken up and the connection with the jet nozzle is cut. Therefore,
The jet nozzle and the hose can be automatically cut, and labor can be saved.

[0010]

FIG. 1 shows the overall construction of an embodiment of the present invention.
This pile press-in / pull-out device is a pile press-in / pull-out machine 1 for driving a pile,
The pile press-fitting / pulling machine 1 is provided with a power unit. The pile press-fitting / extracting machine 1 presses the pile P into the ground and moves on the press-fitted pile P. Along with this movement, a new pile P1 is pressed into the ground. This pile press-in / pull-out machine 1 is a clamp 5 that hangs down from a saddle 4 and clamps a pile P.
A mast 6 standing upright on the saddle 4 via a slide base; an elevating body 7 attached to the front side of the mast 6 so as to be vertically movable; a main cylinder 8 for vertically moving the elevating body 7; 7 and a chuck 9 attached to it. The chuck 9 holds the new pile P1 and presses the new pile P1 into the ground by lowering it. As the pile press-fitting / pulling machine 1 having this structure, the conventionally used pile press-fitting / pulling machine can be used as it is.

When the pile is press-fitted by the pile press-in / pull-out machine 1, jet water is jetted to the ground. Therefore, the jet nozzle 10 for jetting jet water is attached to the new pile P1 by a nozzle socket (not shown). In this case, a metal band or the like is used for the nozzle socket, and the jet nozzle 10 is attached by welding the metal band to the pile P1 while sandwiching the jet nozzle 10 between the metal band and the pile P1. Be seen. The jet nozzle 10 is connected to the power unit 2 via a hose 11, a reel 33, and a hose 12, and jet water is supplied from the unit 2.

The power unit 2 has a box shape, and the inside of the power unit 2 is a drive unit 21 and a jet unit 2.
It is divided into 3 chambers containing 2 and a water tank 23. The drive unit 21 includes the pile press-fitting / pulling machine 1 and the jet unit 2
The engine 24 and the hydraulic pump 25 that is connected to the engine 24 to operate are provided to supply power to the engine 2. The pressure oil from the hydraulic pump 25 is supplied to the clamp 5, the chuck 9, and the main cylinder 8 of the pile press-fitting / pulling machine 1 to operate them and slide the slide base. In addition, this pressure oil is used in the jet unit 22.
Is also supplied to the hydraulic motor 26.

The jet unit 22 has a hydraulic motor 26.
And a jet pump 27 that is connected to the hydraulic motor 26 to operate to generate jet water. The hose 12 is connected to the jet pump 27, and the generated jet water collects the hose 12, the reel 33, and the hose 1.
1 to the jet nozzle 10. Here, the hydraulic motor 26 of the jet unit 22 is connected to the hydraulic pump 25 of the drive unit 21 to operate. As a result, the jet unit 22 does not require an engine for its operation. That is, in the above configuration,
Drive unit 21 for generating power of the pile press-fitting / pulling machine 1
However, the power is distributed as power for generating jet water. Therefore, the system of the pile press-fitting / extracting machine 1 and the system of jet water are integrated into one system, so that they can be centrally monitored. Therefore, power management is facilitated and the number of workers for monitoring can be reduced. Further, the jetting amount and jetting pressure of jet water are adjusted by the number of rotations of the jet pump 27. Since the jet pump 27 is driven by the hydraulic pump 25 of the drive unit 21 via the hydraulic motor 26, 25
You can adjust and manage the jet water just by managing
It is also possible to use less water. When jet water is not used, all the output of the hydraulic pump 25 can be switched as the power of the pile press-fitting / extracting machine 1.

Water from the water source 30 is supplied to and stored in the water tank 23. Therefore, the water absorption pump 29 is immersed in the water source 30, and the water is supplied to the water tank 23. In this embodiment, as described above, since the amount of jet water can be controlled and reduced, the amount of water stored in the water tank 23 can be small, and therefore the water tank 23 can be incorporated in the power unit 2. .

The power unit 2 described above is mounted on a moving vehicle that travels on the ground. In the illustrated example, a crawler 28 is used as a moving vehicle, and the crawler 28 moves following the movement of the pile press-fitting / pulling machine 1 associated with the pile press-fitting / pulling-out.
As a result, the entire power unit 2 moves along with the movement of the pile press-in / pull-out machine 1, so that the drive unit 21 for driving the pile press-in / pull-out machine 1 and the jet unit 22 for generating jet water move integrally. In such a structure,
External materials such as a crane for moving are not required, and the moving can be performed easily, and the moving can be performed quickly and with labor saving.

The reel 3 is mounted on the mast 6 of the pile press-in / pull-out machine 1.
3 is attached. The hose 11 connected to the jet nozzle 10 is wound around the reel 33, and the hose 11 is wound or pulled out by the forward and reverse rotations thereof.
The rotation of the reel 33 is performed by a winding motor 34 which is a hydraulic motor provided coaxially with the reel 33. By winding the long hose 11 around the reel 33 in this manner, the hose 11 does not scatter at the site and is not cluttered.

The reel 33 is rotatably supported by a hoisting arm 35 mounted on the mast 6. The up-and-down arm 35 is tiltable so as to stand up and down on the mast 6. As shown in FIGS. 2 and 3, the hoisting arm 35 is tilted by the operation of a hoisting cylinder 36 formed of a hydraulic cylinder, and the hoisting cylinder 36 and the hoisting arm 35 hoist the reel 33 on the mast 6. Make up.

2 and 3 show the operation of this undulating member. The take-up motor 34 constantly applies torque to the take-up side in the state of FIG. 1, and rotates the reel 33 so that the hose 11 is pulled out as the press-fitting of a new pile P1 progresses. As a result, the hose 11 is always in a tensioned state and does not sag. FIG. 2 shows a state where the press-fitting of the new pile P1 is completed and the jet nozzle 10 is removed from the pile 3a. First, by the operation of the undulating cylinder 36,
The hoisting arm 35 is tilted so that the hose 11 pulled out from the reel 33 is aligned with the jet nozzle 10. In this state, when the winding motor 34 is rotated in the winding direction and the hose 11 is pulled up, the winding force is transmitted to the jet nozzle 10 without loss.
The jet nozzle 10 can be separated from the nozzle socket, and the hose 11 and the jet nozzle 10 can be recovered.

FIG. 3 shows a case in which the hoisting cylinder 36 is actuated to bring the hoisting arm 35 into a completely recumbent state, whereby the reel 33 standing upright from the mast 6 is tilted. In this state, the pile press-fitting / pulling machine 1 has a low overall height, so that the pile press-fitting / pulling machine 1 does not become a hindrance when being transported by another vehicle and can be transported smoothly.

FIG. 4 shows another embodiment of the present invention. In the jet nozzle 10 attached to the new pile P1, the pile P
1, a pipe-shaped attachment 40 is connected along the length direction of the reel 1, and the reel 3 is attached to the upper end of the attachment 40.
A hose 11 from 3 is connected. In this structure, the hose 11 is not located on the side surface of the pile P1, and the attachment 40 having high rigidity is provided on the side surface of the pile P1. Therefore, by using the attachment 40 on the ground where the hose 11 may be damaged, there is an advantage that the hose 11 can be prevented from being torn or detached and a safe work can be secured.

[0021]

As described above, according to the present invention, the power of the pile press-fitting / pulling machine is distributed to generate the jet water, so that the power system can be simplified and the control becomes easy. Further, in the present invention, since the entire power unit moves with the movement of the pile press-fitting / pulling machine,
The workability is improved and the hose is wound around the reel, so that the hose can be easily processed. Further, in the present invention, the connection between the hose and the jet nozzle is automatically cut off by the rotation of the reel in the tilted state in the winding direction, so that the work for that is unnecessary and the labor can be saved.

[Brief description of drawings]

FIG. 1 is a side view of the overall configuration of an embodiment of the present invention.

FIG. 2 is a side view showing the action of the reel.

FIG. 3 is a side view showing another action of the reel.

FIG. 4 is a side view of another embodiment.

FIG. 5 is a side view showing a conventional system.

[Explanation of symbols]

 1 Pile press-in / pull-out machine 2 Power unit 10 Jet nozzle 11 Hose 28 Crawler 33 Reel P, P1 Pile

Claims (5)

[Claims] 1. A pile driving method in which a pile press-fitting / extracting machine drives a pile while moving on the pile and jets jet water from the driven pile to the ground. A pile driving method characterized in that power and jet water generation power are generated from a single power unit, and this power unit is moved as the pile press-in / pull-out machine moves. 2. The pile press-fitting / pulling machine is provided with a reel capable of undulating, a jet nozzle for jetting jet water is fixed to the pile, and a hose for guiding jet water to the jet nozzle is wound around the reel, and the hose is 2. The connection between the hose and the jet nozzle is cut by tilting the reel so as to match the jet line of the jet water and rotating the reel in the hose winding direction in this state. Pile driving method. 3. A pile press-fitting / pulling machine that drives a pile while moving on the pile, a jet nozzle that is attached to the pile to be jetted and jets jet water to the ground, and is supplied to the pile press-fitting and pulling machine. A power unit that generates power and distributes this power as generation power of jet water supplied to the jet nozzle; a mobile vehicle that is equipped with this power unit and travels as the pile press-in / pull-out machine moves; A pile press-fitting / pulling-out device comprising a hose connecting a power unit and a jet nozzle, and a reel mounted on the pile press-fitting / pulling machine so that the hose can be wound and pulled out. 4. The pile press-fitting / pulling-out device according to claim 1, wherein an undulating device is attached to the pile press-fitting / pulling-out machine, and the reel is attached to the undulating device. 5. The pile press-fitting / pulling-out device according to claim 3, wherein a pipe-shaped attachment for connecting the jet nozzle and the hose is fixed in the longitudinal direction of the pile to be driven.