JPS5817797Y2 - Sheet pile burying machine - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a vibration-free burial device for sheet piles.

Conventionally, as a vibration-free burying device for sheet piles such as steel plates, as described in Japanese Patent Publication No. 53-10364, an auger attached to a leader excavates the vicinity of the sheet pile buried area, reduces press-fitting resistance of the sheet pile, and mounts the sheet pile on the leader. A device in which the sheet pile support is pressed and press-fitted using a hydraulic jack or the like is known, and although such a device satisfactorily achieves its intended purpose as a vibration-free burial device, it may not work depending on the ground condition. However, if the sheet piles are simply pressed in using a hydraulic jack or the like, there are cases where the dead weight of the burying equipment alone is insufficient to support the reaction force, and construction takes a long time.

For this reason, a reaction force table is installed at the bottom of the press-in device, and when press-fitting the second and subsequent sheet piles, the previously buried sheet pile and the reaction force table are connected, and the reaction force of the first buried sheet pile is applied in addition to the own weight of the device. There is also a known reaction table configured to receive the leader, but it is desirable to place this reaction table at the lowest possible position at the bottom of the press-in device in order to reduce the amount of sheet piles left behind during press-fitting. When transporting the blade, there was a problem in which the reaction platform came into contact with the ground and hindered the pitching, as shown in Figure 1, when the knife was mounted on a trailer or the like.

This idea was created in view of the above, and by making it possible to adjust the distance between the reaction force table attached to the bottom of the press-fitting device and the bracket, the reaction force table can be fixed at the lowest position during sheet pile burying work. In addition to minimizing the remaining sheet pile press-in,
During transportation, it is raised within the range of the jack's vertical stroke to prevent the reaction force table from interfering with self-blade travel.

The following will explain the embodiments shown in the drawings.

1 is a sheet pile burying machine for steel plates, etc., which buries a car body 2 and catch balks on the car body 2; It is composed of a leader elevation cylinder 4 and a leader 6 mounted via a stay 5.

The leader 6 is composed of an upper leader 6', a middle leader 6'', and an auxiliary lever 6'' detachably attached to the lower leader 6''. At the same time, an auger motor 9 is attached to the vehicle body 2 via a wire rope 7 and suspended by a winch 8 so as to be movable up and down.

Reference numeral 10 denotes an earth auger, which is attached to the lower end of the auger motor 9 and is rotationally driven by the motor 9.

Reference numeral 11 denotes a bracket 1 fixed to the leader 6 by a press-fitting device.
2, a plurality of guide bars 14, 14 are slidably inserted into the bracket 12 and fixed as necessary by fixing means such as pins 13, and a hydraulic jack 15 is inserted into the piston rod 16. It is attached so that it protrudes downward.

Reference numeral 17 denotes a sheet pile support such as a steel plate, which is disposed below the bracket 12, whose upper part is connected to the tip of the piston rod 16 with a connecting pin 18, etc., and in which the earth auger 1 is connected to the center part.
An earth auger guide tube 19 for penetrating the ground auger is attached.

Reference numeral 20 denotes an opening for inserting the sheet pile A into the guide tube 19.
penetrates upward and downward, and a pedestal 2 is placed inside the opening.
A pressing member 22 is mounted on the outer side of 1.

Reference numerals 22 and 23 denote guide bar through holes, which are connected to the guide bar 14.
14 is penetrated.

A reaction force table 24 is located below the sheet pile support 17, has a hole for passing through the earth auger 10, and is attached to the lower end of the guide bar 14.14 by a suitable means such as a pin 25. There is.

26 is a connecting pin that connects the sheet pile support 17 and the reaction force table 24, and the bracket protruding from the lower end of the sheet pile support and the bracket protruding from the upper part of the reaction force table are pinned to each other.
The same effect can be obtained by using other means for connecting the sheet pile support and the reaction platform, such as fixing the guide bar 14.14 and the sheet pile support without using a bracket.

This invention has the above-mentioned configuration. First, the sheet pile A, such as a steel plate, is inserted between the pedestal 21 of the sheet pile insertion opening 20 and the pressing member 22, and the sheet pile A is clamped by the pressing member 22.

Next, the auger motor 9 is operated, and the earth auger 10, which is rotated and fed, excavates a vertical hole in the vicinity of the sheet pile burial position.

As the vertical hole is dug, the jack 15 is operated to start burying the clamped sheet pile A into the ground.

The sheet pile A to be pushed into the ground has a vertical hole drilled in advance, so it is pushed into the ground with a relatively small pressing force.

When the sheet pile A is buried by the stroke of the jack 15, the pressing member 22 is actuated to release the sheet pile A, the jack 15 is contracted and the sheet pile support 17 is raised, and the sheet pile A is held again. Repeat the burying of sheet pile A in the same manner as above.

(The sheet pile support 17 is connected between the bracket 11 and the reaction table 24.
moves back and forth.

) When the burying of the sheet pile A is completed in this way, the earth auger 10 is rotated in the reverse direction and the excavated earth and sand is backfilled into the vertical hole.

When the first sheet pile burying is completed, the sheet pile burying machine 1 is moved one pitch, and the next sheet pile is buried in the same process as above.
When burying the second and subsequent sheet piles, by connecting the reaction force table 24 and the previously buried sheet pile as necessary, it is possible to add the burying reaction force to the own weight of the burying machine and to make the previously buried sheet pile bear the burden.

The above-mentioned embedding process is the same as that of the conventional vibration-free embedding device, but according to this invention, the guide bar 14, 14 is made slidable on the bracket 12 of the press-fitting device 11, and is inserted and inserted so that it can be fixed as necessary. Therefore, when burying the sheet piles, the guide rails 14 and 14 are fixed to the brackets 12, and the jacks 15 are fixed.
The sheet pile support 17 is lowered to bury the sheet pile by the operation of The brackets attached to the body 17 and the reaction force table 24 are connected to each other by a pin 26. By fixing the guide bar 14.14 and the sheet pile support 17 with pins, etc., the sheet pile support 17 and the reaction force table 24 are connected to each other by a pin 26. are connected so that they do not move relative to each other, and the reaction force table 24 is pulled up toward the bracket 12 by raising the jack 15.

As described above, according to this invention, when burying a sheet pile, the reaction table is fixed at the lowest position and the sheet pile is buried, so it is possible to minimize the amount of sheet piles left after being pressed in, and when transporting the burying machine, By pulling up only the reaction table without moving the entire leader, it is possible to prevent the reaction table from becoming an obstacle to travel, so it is possible to mount the self-blade on a trailer or the like without disassembling the leader.

[Brief explanation of drawings]

Fig. 1 is a diagram of a conventional burying machine mounted on a trailer, Fig. 2 is a side view of the sheet pile burying machine of this invention, Fig. 3 is a partially cutaway side view of the press-in device of this invention, and Fig. 4 is a side view of the sheet pile burying machine of this invention. FIG. 4 is a sectional view taken along line IV- in FIG. 3; 6: leader, 10: earth auger, 12 nib bracket, 15: jack, 16: piston rod, 17: sheet pile support, 24: reaction force table.

Claims (1)

[Scope of utility model registration request] In a sheet pile burying machine in which an earth auger is attached, a jack is attached to the leader via a bracket, and the jack and the sheet pile support are connected, the bracket is inserted through the bracket fixed to the leader, and a pin etc. A guide bar that can be fixed by a fixing means is attached, a reaction force table is attached to the lower end of the guide bar, and a sheet pile support that is slidable along the guide bar is arranged between the bracket and the reaction force table. , the reaction table and the sheet pile support can be connected to each other, the bracket and the guide bar are unfixed, the reaction table and the sheet pile support are connected, and the jack is operated to connect the bracket and the sheet pile support. A sheet pile burying machine that is characterized by being able to adjust the distance between it and the force table.