JPH06108466A - Sheet pile installing method - Google Patents

Abstract

PURPOSE:To execute works quietly without producing noises and vibrations on pile-driving, and to drive sheet piles very closely to a nearby building without giving damages to that building even though the building is built along the boundary line to an adjoining site. CONSTITUTION:A sheet pile pressing device 5 is attached to the lower part of an auger machine 4 of an earth auger 1, and the upper end of the sheet pile 10 is attached to the front of the sheet pile pressing device 5 and at the same time, a water-ejecting nozzle 9 is attached to the lower part on the rear side of the sheet pile 10. While water 12 is jetted downward from the water- ejecting nozzle 9, the auger machine 4 is moved down along a tower 3 and thereby the sheet pile 10 is pressed into earth.

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 sheet piles such as sheet piles and trenches into the ground for installation.

[0002]

2. Description of the Related Art Conventionally, when a sheet pile is driven into the ground for installation, the upper end of the sheet pile is driven by violent vibration.

[0003]

However, this method causes a serious noise or vibration at the time of driving, which causes a problem of noise pollution in the neighborhood. In addition, in order to apply impact or vibration to the upper end of the sheet pile, a certain amount of space was required around the sheet pile for the work, and it was impossible to install the sheet pile at the boundary of the adjacent ground.

In addition, various methods for hitting a sheet pile without generating noise or vibration have been proposed, such as a method for pushing the sheet pile by hydraulic pressure. However, even in those methods, a space for installing a device for driving is proposed. Is required, and it is not possible to install a sheet pile at the last minute of the boundary with the adjacent land by either method.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a method capable of installing a sheet pile along a boundary with an adjacent ground without generating noise or vibration. To do.

[0006]

According to the method of the present invention, a sheet pile pushing device is attached via a shaft to a lower part of an auger machine which moves up and down along a tower of an earth auger, and a sheet pile pushing device is attached to a front surface of the sheet pile pushing device. While fixing the upper end, a water jet nozzle is attached to the lower rear part of the sheet pile, and while jetting water downward from the water jet nozzle, the auger machine is moved downward along the tower to move the sheet pile underground. It is characterized by being pushed into.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a state in which the method of the present invention is carried out, in which 1 is an earth auger, 2 is a drive vehicle of the earth auger 1, and 3 is a vertical installation with respect to the ground by the drive vehicle 2. It is a tower And that tower 3
An auger machine 4 is attached to and is moved up and down along the tower 3.

Reference numeral 5 is a sheet pile pushing device attached to the auger machine 4 via a shaft 6. 2 and 3, a clamp 7 is attached to the lower portion of the front surface of the sheet pile pushing device 5, and a hose 8 is attached to the upper portion of the front surface of the sheet pile pushing device 5. A water jet nozzle 9 is provided at the tip.

Reference numeral 10 denotes a sheet pile such as a sheet pile or a trench. The upper end of the sheet pile 10 is fixed to the sheet pile pushing device 5 by the clamp 7. And that sheet pile 10
The hose 8 is arranged along the back surface of the hose 8, and the lower end portion of the hose 8 is loosely supported on the back surface of the sheet pile 10 by a fitting 11.

Then, the high-pressure water is sent to the hose 8 through the sheet pile pushing device 5, and the water 12 is jetted downward from the water jet nozzle 9, while the auger machine 4 is placed in the tower 3.
The sheet pile 10 is pressed downward by driving the sheet pile 10 along, and the sheet pile 10 is press-fitted into the ground to be installed at a predetermined depth.

[0011]

In the present invention, while the high-pressure water 12 is jetted downward from the water jet nozzle 9, the sheet pile 10 is pressed against the ground, so that the ground where the sheet pile 10 abuts is the high-pressure water 12.
Is sprayed into a muddy state and the lower end of the sheet pile 10 is pressed against it, so that the sheet pile 10 is easily pushed into the ground.

Further, as the sheet pile 10 enters the ground, the hose 8 also moves downward, and the water jet nozzle 9 constantly sprays water 12 onto the ground at the lower end of the sheet pile 10 toward the muddy ground. Can penetrate with a small force.

When the sheet pile 10 moves down to a predetermined depth, the jetting of the water 12 from the water jet nozzle 9 is stopped, the clamp 7 is removed, and the auger machine 4 is moved upward. The machine 4 and the sheet pile pushing device 5 move upward, and the hose 8 can be taken out from the loosely supported fitting 11 to the ground.

[0014]

According to the present invention, the auger machine 4 is moved downward along the tower 3 while jetting water 12 from the water jet nozzle 9 toward the lower end of the sheet pile 10 to press the sheet pile 10. Since it is pushed into the ground by pushing it, the construction can be carried out quietly without generating noise or vibration due to impact.

Further, the water 12 is jetted to the lower end of the sheet pile 10, and the sheet pile 10 is pushed in while making the ground into a muddy state.
An excessive load is not required to push 0, and the sheet pile 10 can be pushed sufficiently by the driving force of the normal earth auger 1.

Moreover, since the sheet pile 10 is attached to the front surface of the sheet pile pushing device 5 attached to the lower portion of the auger machine 4 and pushed by the weight of the auger machine 4 and the sheet pile pushing device 5, it is attached to the front portion of the sheet pile 10 at the time of construction. There is nothing to overhang. Therefore, even if there is a building along the boundary with the adjacent land, the sheet pile 10 can be driven to the last position of the building and the building is not damaged.

Further, the water jet nozzle 9 is arranged on the back side of the sheet pile 10, and when the ground at the lower end of the sheet pile 10 becomes muddy by the water 12 jetted from there, the sheet pile 10 immediately moves down there, so that the water 12 Does not move to the front side of the sheet pile 10, and the water 12 does not adversely affect the adjacent land or the adjacent building.

Further, as shown in the drawing, since the sheet pile pushing device 5 is connected to the auger machine 4 via the shaft 6, the auger machine 4 can be rotationally driven without changing the position or direction of the driving vehicle 2. Thus, the direction of the sheet pile pushing device 5 can be easily changed.

[Brief description of drawings]

FIG. 1 is a side view of an apparatus embodying the present invention.

FIG. 2 is a central longitudinal sectional view of a main part of the device.

FIG. 3 is a front view of the main part of the apparatus.

[Explanation of symbols]

 1 Earth Auger 3 Tower 4 Auger Machine 5 Sheet Pile Pusher 6 Shaft 7 Clamp 9 Water Injection Nozzle 10 Sheet Pile 12 Water

Claims (1)

[Claims] 1. A sheet pile pushing device (5) is attached to a lower part of an auger machine (4) which goes up and down along a tower (3) of an earth auger (1) through a shaft (6), and the sheet pile pushing device (5) is attached. The upper end of the sheet pile (10) is fixed to the front surface of (5), and the water jet nozzle (9) is attached to the lower portion of the back surface of the sheet pile (10).
Of the sheet pile, the auger machine (4) is moved downward along the tower (3) to push the sheet pile (10) into the ground while injecting water (12) downward from the sheet pile. Installation method