JP2010196291A - Press-in device for sheet piles - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently bury sheet piles such as a sheet pile or wide flange steel even in a narrow place or a place with many obstacles. <P>SOLUTION: The device includes: a crane 18 mounted on a moving means; a rotationally driving motor 26 fixed to a leading end of an arm 22 of the crane 18 and having a rotating shaft vertical to a ground 12; a sheet pile pushing mechanism 38 detachably suspended from the lower end of the rotating shaft of the motor 26 through a plug 36; a sheet pile holding mechanism 42 provided on the pushing mechanism 38 to hold a sheet pile 14 while vertically standing it on the ground 12; and a hydraulic cylinder 40 which applies a vertically downward pressure to the sheet pile 14 held by the holding mechanism 42 to push it into the ground 12. Since the crane 18 can be operated while holding the sheet pile 14 by the mechanism 38, the movement and positioning thereof can be easily performed even in a narrow site. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sheet pile press-fitting device used for burying sheet piles such as sheet piles and H steel with low noise.

  In the earth retaining work performed at the time of construction of an underground facility, many sheet piles such as sheet piles and H steel are driven into the ground. In order to reduce the noise of this construction, a device is used that applies pressure downward to the sheet piles and pushes it into the ground.

JP-A-6-108466 JP-A-7-233530

The known prior art has the following problems to be solved.
The sheet piles are several meters long, so they are lifted by a crane and operated. The sheet pile pushing device is heavy and must be moved each time the sheet pile pushing position is moved. Therefore, a crane is also used for this movement. In addition, sheet piles are arranged with their edges meshing together to create a wall in the soil. Therefore, since the operator performs positioning and direction adjustment in a state where the sheet piles are lifted by the crane, the burden on the crane operator and the operator is large. In addition, a sufficient work space is required for this work, and there are a lot of carry-in equipment, so a sufficient equipment installation space must be secured. Therefore, there is a problem that construction in a narrow area is very difficult.
In order to solve the above-mentioned problems, the present invention aims to provide a sheet pile press-fitting device capable of efficiently burying sheet piles such as sheet piles and H steel even in a narrow land or a land with many obstacles. To do.

The following configurations are means for solving the above-described problems.
<Configuration 1>
A crane 18 mounted on the moving means, a rotation driving motor 26 fixed to the tip of an arm 22 of the crane 18 and having a rotation axis perpendicular to the ground 12, and the rotation driving motor 26 A sheet pile pushing mechanism 38 that is detachably suspended from the lower end of the rotating shaft via a plug 36, and a sheet pile holding mechanism that is provided in the sheet pile pushing mechanism 38 and grips the sheet pile 14 vertically upright with respect to the ground 12. 42 and a hydraulic cylinder 40 that presses the sheet pile 14 gripped by the sheet pile holding mechanism 42 vertically into the ground 12 by applying a downward pressure to the sheet pile 14.

<Configuration 2>
In the sheet pile press-fitting device according to Configuration 1, a tip of the arm 22 is connected to a winch 20 mounted with the crane 18 on the moving means, and a guide roller 32 connected to the winch 20 and supported by the crane 18. A sheet pile press-fitting device, comprising: a wire 30 having the other end suspended from the wire 30; and a clamp 34 suspended from the wire 30 and gripping and lifting the sheet pile 14.

<Configuration 3>
A crane 18 is mounted on the moving means, the crane 18 is carried to a predetermined position on the construction site, the moving means is stopped, and the sheet pile 14 is vertically upright with respect to the ground 12 in the state where the sheet pile pushing mechanism 38 is placed. The sheet pile 14 is gripped by a provided sheet pile holding mechanism 42, and a rotary drive motor 26 having a vertical rotary shaft is fixed to the tip of the arm 22 of the crane 18. The rotary shaft of the rotary drive motor 26 is fixed. The sheet pile pushing mechanism 38 is suspended via the plug 36, the sheet pile pushing mechanism 38 and the sheet pile 14 are both lifted, the rotation driving motor 26 is rotated, and the sheet pile pushing mechanism 38 and the Positioning and adjusting the direction of the sheet piles 14 are performed simultaneously, and then the hydraulic cylinder 40 applies a downward pressure to the sheet piles 14 gripped by the sheet pile holding mechanism 42. Only by sheet piles such press-fitting method characterized by pushing into the ground 12.

<Configuration 4>
In the sheet pile press-in method according to Configuration 3, a winch 20 is mounted on the moving means together with the crane 18, one end is connected to the winch 20, and the other from the tip of the arm 22 through a guide roller 32 supported by the crane 18. A clamp 34 is connected to the wire 30 whose end is suspended, and the sheet pile 14 is grasped and lifted by the clamp 34 so as to stand upright perpendicularly to the ground 12, and then provided to the sheet pile pushing mechanism 38. A sheet pile press-in method, wherein the sheet pile holding mechanism 42 is operated to grip the sheet pile 14.

<Configuration 5>
In the sheet pile press-in method according to Configuration 4 or 5, a hole drill 28 is connected to a lower end of a rotation shaft of the rotation drive motor 26 via a plug 36, and a hole for pushing the sheet pile 14 into the ground 12 The sheet pile press-in method characterized by performing the pre-processing which forms.

It is possible to press-in sheet piles with little noise and vibration, even in confined areas or where there is no room due to walls, etc. in adjacent areas. Moreover, since the sheet pile pushing mechanism 38 and the like are pressed by the crane 18 and operated, the sheet pile pushing mechanism 38 and the like can be sufficiently downsized as a whole.
<Effect of Configuration 1>
Since the sheet pile pushing mechanism 38 is suspended through the plug 36 at the lower end of the rotation shaft of the rotation drive motor 26 and the sheet piles 14 are held vertically upright with respect to the ground 12, the crane 18 can be operated. The sheet pile 14 and the sheet pile pushing mechanism 38 can be easily moved and positioned. The sheet pile pushing mechanism 38 and the sheet pile 14 can be rotated 360 degrees quietly and safely, and an efficient work can be performed. Further, when the crane 18 is rotated and expanded and contracted, the work is proceeded speedily without moving the crane 18. If the plug 36 is removed, the sheet pile pushing mechanism 38 and the like can be loaded on a loading platform such as a truck carrying a crane and transported in a lump.
<Effect of Configuration 2>
The winch 20 can be used to attach the sheet pile 14 carried into the construction site to the sheet pile holding mechanism 42. Further, when the sheet pile pushing mechanism 38 is moved in a state where the sheet pile 14 is grasped, the tall sheet pile 14 can be prevented from wobbling.
<Effect of Configuration 5>
Since a drilling drill 28 can be connected to the rotation driving motor 26, a hole can be made in the ground in advance in the case of a hard ground. Also in this case, it is not necessary to prepare a large-sized drilling device main body separately.

It is a side view which shows the sheet pile press-in apparatus 10 of Example 1. FIG. It is a top view of the constructed sheet piles. It is explanatory drawing of positioning of the sheet piles 14 and the hydraulic cylinder 40, and direction adjustment operation. It is the top view which looked at the construction site from the upper part. It is a side view explaining operation before construction using the device of the present invention. It is an apparatus side view which shows the sheet pile press-in method of Example 4. It is a side view which shows the sheet pile press-in apparatus 10 of Example 5. FIG.

  Hereinafter, embodiments of the present invention will be described in detail for each example.

FIG. 1 is a side view showing a sheet pile press-fitting device 10 according to the first embodiment.
This apparatus is loaded on a moving means such as a truck 16 as shown in the figure and is carried into a construction site. A crane 18 and a winch 20 are mounted on the truck 16. Since this apparatus can be carried in by a truck 16 of a large passenger car class, it is suitable for a narrow area. The sheet pile pushing mechanism 38 is carried into the construction site separately by a truck or the like and lowered to the ground 12. The crane 18 is configured to freely change direction on the truck 16. The arm 22 supported by the crane 18 can be freely changed in direction by the rotation of the crane 18 and can be freely expanded and contracted.

  A rotary drive motor 26 is suspended and fixed to the tip of the arm 22 of the crane 18. The rotation drive motor 26 has a rotation axis perpendicular to the ground 12. The rotation of the crane 18, the expansion and contraction of the arm 22, and the rotation control of the rotation drive motor 26 can be performed by operating an operation panel (not shown) provided on the crane 18.

  A sheet pile pressing mechanism 38 is suspended from a lower end of the rotation shaft of the rotation drive motor 26 via a plug 36. It is to be noted that the sheet pile pushing mechanism 38 is easily connected via the plug 36 that can be easily attached / detached for transporting the sheet pile pushing mechanism 38 or drilling work using the rotation drive motor 26 as will be described later. Is suspended and fixed. Accordingly, when the rotation driving motor 26 is rotated, the direction of the sheet pile pressing mechanism 38 can be adjusted freely and accurately while being remotely operated.

  The sheet pile pushing mechanism 38 is provided with a sheet pile holding mechanism 42 for gripping the sheet piles 14 in a state of being vertically upright with respect to the ground 12. The sheet pile holding mechanism 42 is suspended from the lower end of the hydraulic cylinder 40 with respect to the sheet pile pushing mechanism 38. The sheet pile holding mechanism 42 is supported on a side surface of the sheet pile pressing mechanism 38 via a rail (not shown), and freely slides vertically along the side surface of the sheet pile pressing mechanism 38 in the vertical direction. The hydraulic cylinder 40 has a function of pushing the sheet piles 14 gripped by the sheet pile holding mechanism 42 into the ground 12 by applying a downward pressure to the sheet piles 14. Since the arm 22 erects the sheet pile pushing mechanism 38 through the boom 24 and the rotation drive motor 26 and presses the sheet pile pushing mechanism 38 against the ground 12, the reaction when the sheet pile 14 is press-fitted can be suppressed. Moreover, since it is not a driving-in method, the noise accompanying construction can be reduced sufficiently. Conventionally, a large complex device has been used to suppress a reaction when the sheet piles 14 are press-fitted. In the present invention, the weight and the cost can be reduced to about 1 to 1/5.

  A winch 20 is mounted on the truck 16 together with the crane 18. One end of the wire 30 is connected to the winch 20. The other end of the wire 30 is suspended from the tip of the arm 22 via a guide roller 32 supported by the crane 18. A clamp 34 is attached to the other end of the wire 30. The winch 20 is mainly used for mounting the sheet pile 14 carried into the construction site to the sheet pile holding mechanism 42. The clamp 34 is for holding the sheet pile 14 and lifting it with the wire 30. Further, as shown in the figure, when the sheet piles 14 are held by the clamp 34, the tall sheet piles 14 can be prevented from wobbling when the sheet pile pushing mechanism 38 is moved or rotated. Therefore, it is possible to quickly perform construction in a narrow area without causing the sheet piles 14 to collide with other obstacles safely.

FIG. 2 is a top view of the constructed sheet piles. FIG. 3 is an explanatory view of the positioning and direction adjusting operations of the sheet piles 14 and the hydraulic cylinder 40.
As shown in the drawing, the sheet piles 14 used for the retaining wall construction are arranged side by side with no gap so as to engage each other at the edge 51 portion. Moreover, the sheet piles 14 are press-fitted into the soil in order, with the sheet piles 14 to be embedded next to the sheet piles 14 embedded one by one. Accordingly, the sheet piles 14 must be accurately positioned and adjusted before the press-fitting operation is started.

  If the sheet pile pushing mechanism 38 is provided with an adjustment mechanism for the direction and positioning of the sheet piles 14, the mechanism of the sheet pile pushing mechanism 38 becomes complicated and increases in size. In the present invention, the sheet piles 14 are positioned by operating the crane 18. The sheet pile pushing mechanism 38 and the sheet pile 14 are lifted together, and the rotational drive motor 26 is rotated to simultaneously position and adjust the sheet pile pushing mechanism 38 and the sheet pile 14. Since both the sheet pile 14 and the sheet pile pushing mechanism 38 are connected and fixed to the arm 22, there is no wobbling as compared with a state suspended by a wire or the like, and positioning and direction adjustment can be performed accurately. Moreover, remote operation can be performed on the crane 18 side, and an assistant is unnecessary, so that workability is high and efficiency is high.

FIG. 4 is a plan view of the construction site as viewed from above.
At the start of construction, the apparatus and sheet piles 14 shown in FIG. As shown in FIG. 4, the sheet piles 14 are stacked in a place that does not interfere with the construction. The position of the track 16 is fixed by selecting a place where it is not necessary to move again as much as possible. In addition, when the crane is provided in a moving means such as a construction bulltozer, the bulltozer is lowered from the truck and fixed at the construction site.

  As already described, since the crane 18 can be operated while the sheet pile 14 is held vertically upright with respect to the ground 12, the sheet pile 14 and the sheet pile pushing mechanism 38 can be easily moved and positioned simultaneously. At the same time, as shown in FIG. 4, when the arm 22 of the crane 18 is expanded and contracted to change the direction, the sheet piles are efficiently applied to a narrow land or a land with many obstacles as long as the arm reaches. 14 can be constructed. Therefore, the moving means such as the truck 16 may be used only for carrying in and carrying out the crane 18.

FIG. 5 is a side view for explaining an operation before construction using the apparatus of the present invention.
The sheet piles 14 carried into the construction site must be attached to the sheet pile pushing mechanism 38. For this purpose, a winch 20 mounted on the moving means is used. The wire 30 of the winch 20 is extended to connect the clamp 34 to the sheet pile 14. The clamp 34 may be connected to a position that is exactly as shown in FIG. The sheet piles 14 are grasped and lifted by the winch 20 so as to stand upright vertically on the ground 12, and then attached to the sheet pile pushing mechanism 38. The operation of attaching the clamp 34 to the sheet pile 14 and the operation of attaching the sheet pile 14 to the sheet pile holding mechanism 42 can be performed by remotely operating the crane. Thus, the sheet piles 14 are supported in the state shown in FIG.

FIG. 6 is a side view of the apparatus showing the sheet pile press-in method of the fourth embodiment.
If the ground is hard, it is not easy to press-fit the sheet piles 14 of the hydraulic cylinder 40. In general, an excavator is carried into a construction site and a corresponding portion is drilled in advance. However, when both the press-fitting device for the sheet piles 14 and the excavator are carried in, there is a problem that construction in a narrow land is not easy. However, in the present invention, since the rotational drive motor 26 is fixed to the tip of the crane 18, the drilling drill 28 can be reconnected to the lower end of the rotational shaft of the rotational drive motor 26 via the plug 36. Thereby, the pre-process which forms previously the hole for pushing the sheet piles 14 into the ground 12 using the same apparatus can be performed. That is, it is not necessary to prepare a large-sized drilling device main body separately, it is sufficient to prepare only the drilling drill 28, and the carrying-in work and the space securing work can be reduced.

FIG. 7 is a side view showing the sheet pile press-fitting device of the fifth embodiment.
In the first embodiment, the crane 18 and the like are mounted on a moving means similar to a truck for carrying goods. With the operability close to that of a passenger car, it has the effect of being able to freely enter and exit a small land. On the other hand, in the fifth embodiment, as shown in the figure, the crane 18 and the like are mounted on a well-known crane carriage 52. The crane carriage 52 is also a moving means and can be easily moved at the construction site. For example, the apparatus of the present invention is effective when a sheet pile is neatly embedded in a land surrounded by buildings. A trailer or the like can be used separately to carry the crane carriage 52 to the construction site. Thus, the sheet pile press-fitting device of the present invention can be realized using an arbitrary moving means.

DESCRIPTION OF SYMBOLS 10 Sheet pile press-in apparatus 12 Ground 14 Sheet pile 16 Truck 18 Crane 20 Winch 22 Arm 24 Boom 26 Rotation drive motor 28 Drilling drill 30 Wire 32 Guide roller 34 Clamp 36 Plug 38 Sheet pile pushing mechanism 40 Hydraulic cylinder 42 Sheet pile holding mechanism 51 Edge 52 Dolly for crane

Claims (5)

A crane 18 mounted on the moving means;
A rotation drive motor 26 fixed to the tip of the arm 22 of the crane 18 and having a rotation axis perpendicular to the ground 12;
A sheet pile pushing mechanism 38 detachably suspended via a plug 36 at the lower end of the rotation shaft of the rotation drive motor 26;
A sheet pile holding mechanism 42 that is provided in the sheet pile pushing mechanism 38 and grips the sheet piles 14 in a state of being vertically upright with respect to the ground surface 12;
A sheet pile press-fitting device, comprising: a hydraulic cylinder 40 that presses the sheet pile 14 held by the sheet pile holding mechanism 42 in a vertically downward direction and pushes it into the ground 12. In the sheet pile press-fitting device according to claim 1,
A winch 20 mounted with the crane 18 on the moving means;
A wire 30 having one end connected to the winch 20 and the other end suspended from the tip of the arm 22 through a guide roller 32 supported by the crane 18;
A sheet pile press-fitting device comprising a clamp 34 suspended from the wire 30 and holding and lifting the sheet pile 14. A crane 18 is mounted on the moving means,
Bring the crane 18 to a predetermined position on the construction site, stop the moving means,
In a state where the sheet pile 14 is vertically upright with respect to the ground 12, the sheet pile holding mechanism 42 provided in the sheet pile pushing mechanism 38 is grasped by the sheet pile holding mechanism 42,
A rotary drive motor 26 having a vertical rotation axis is fixed to the tip of the arm 22 of the crane 18;
The sheet pile pushing mechanism 38 is suspended through the plug 36 on the rotation shaft of the rotation driving motor 26,
The sheet pile pushing mechanism 38 and the sheet pile 14 are lifted together, the rotation driving motor 26 is rotated, and the sheet pile pushing mechanism 38 and the sheet pile 14 are positioned and adjusted at the same time,
Thereafter, a sheet pile press-in method characterized in that the hydraulic cylinder 40 applies a pressure vertically downward to the sheet pile 14 gripped by the sheet pile holding mechanism 42 and pushes it into the ground 12. In the sheet pile press-in method according to claim 3,
A winch 20 is mounted on the moving means together with the crane 18,
A clamp 34 is connected to a wire 30 having one end connected to the winch 20 and the other end suspended from the tip of the arm 22 through a guide roller 32 supported by the crane 18.
After grabbing the sheet piles 14 with this clamp 34 and lifting them up and standing vertically to the ground 12,
A sheet pile press-in method, wherein the sheet pile holding mechanism 42 provided in the sheet pile pushing mechanism 38 is operated so as to grip the sheet pile 14. In the sheet pile press-in method according to claim 4 or 5,
A sheet pile drill 28 is connected to a lower end of a rotation shaft of the rotation drive motor 26 via a plug 36, and a pretreatment for forming a hole for pushing the sheet pile 14 into the ground 12 is performed. Similar press-fitting method.

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