JP4094964B2 - Pile driving device and pile driving method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pile driving device and a pile driving method used for driving a pile in a track site or the like.
[0002]
[Prior art]
Conventionally, as a device for driving piles, a leader with an electric auger attached so that it can be moved up and down is integrated with a base beam, and this is suspended by a crane and moved to a pile driving position to drive piles. There is a known one (for example, see Patent Document 1). This device is intended to enable pile driving by suspending movement when it is difficult to work with a crawler type pile driving machine in a track site or the like.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-248375
[Problems to be solved by the invention]
However, in the above conventional apparatus, since the leader and the base beam are integrated, it is difficult to adjust the pile driving position after fixing the base beam to the ground. Therefore, it is necessary to adjust the driving position of the pile when the base beam is suspended and moved by the crane before fixing the ground, but it is difficult to move the base beam to an appropriate position by the crane. If the landing position of the beam is not appropriate, it must be lifted with a crane and moved again, which is troublesome.
[0005]
An object of the present invention is to provide a pile driving apparatus and a pile driving method capable of easily adjusting the driving position of the pile.
[0006]
[Means for Solving the Problems]
The present invention includes a leader that can be suspended and moved, a pile driving means that is attached so as to be able to move up and down along the leader, and a base that is attached to a lower part of the leader and has a fixing means for fixing it to a construction position. In the pile driving apparatus, the base is provided with driving position adjusting means for adjusting the driving position of the pile by moving the leader in the horizontal direction with respect to the base by the jack unit .
[0007]
According to such a pile driving device, after fixing the base attached to the lower part of the leader to the ground at the construction position or the structure constructed at the construction position by the fixing means, the driving position adjustment provided in the base is adjusted. The leader is moved by means to adjust the driving position of the pile. Thereby, after fixing the base to an arbitrary position near the driving position of the pile, only the leader can be moved without moving the base, so that the driving position of the pile can be easily adjusted.
[0008]
Preferably, the base further includes an inclination angle adjusting means for adjusting the inclination angle of the pile by inclining the leader. Thereby, after fixing a base to a construction position, since the inclination angle of a pile can be adjusted freely, a pile can be driven in a desired angle.
[0009]
Preferably, the fixing means includes a rod having a plurality of projecting portions extending in the horizontal direction on the outer peripheral surface and projecting downward from the base, and the rod is inserted into a recessed portion formed at a construction position. The front end of this is brought into contact with the wall portion of the concave portion, and the grout is filled in the gap between the rod and the wall portion of the concave portion, and fixed to the construction position. Thereby, a base can be firmly fixed to a construction position.
[0010]
The present invention relates to a pile driving method in which a pile is driven into the ground by a pile driving means attached to the leader, the leader is suspended and moved to above the pile driving position, and the leader is lowered to lower the leader. The base attached to is fixed to the construction position, and the leader is moved in the horizontal direction with respect to the base by the jack unit to adjust the driving position of the pile.
[0011]
According to such a pile driving method, after fixing the base attached to the lower part of the leader to an arbitrary position in the vicinity of the pile driving position, the pile driving position is adjusted by moving only the leader. Can do. Therefore, it is easy to adjust the driving position of the pile.
[0012]
The pile driving method of the present invention is characterized in that after fixing the base at the construction position, the inclination angle of the pile is adjusted by tilting the leader. Thereby, after fixing a base to a construction position, the inclination angle of a pile can be adjusted and a pile can be driven in a desired angle.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol shall be used for the same element and the overlapping description is abbreviate | omitted.
[0014]
FIG. 1 is a view showing a pile driving apparatus according to the first embodiment of the present invention, and FIG. 2 is a schematic arrow view taken along II-II of the pile driving apparatus shown in FIG. The pile driving device 1 includes a leader 2. The reader 2 is not attached to a traveling device such as a crawler, but can be easily moved by being suspended by the crane 10. Further, a pile driving unit 3 that can be moved up and down along the leader 2 is attached to the leader 2. The pile driving unit 3 functions as a pile driving means for driving the pile 4 into the ground, and for example, a unit that drives the pile 4 by both vibration and rotation or one of them is used.
[0015]
A base 5 is attached to the lower part of the reader 2. The base 5 can be fixed to a ground constructed at a construction position or a structure constructed at the construction position by a fixing means such as an anchor 6 as shown in FIG. The leader 2 is supported by the base 5 at the lower part and supported by the crane 10 at the upper part, so that the leader 2 is stably erected above the construction position. The base 5 may be fixed to the construction position as long as the base 5 can be fixed to the construction position by using other methods and devices. For example, the base 5 may be loaded on the base 5. .
[0016]
Here, an example of the fixing means will be described with reference to FIG. The fixing device 35 in FIG. 3 inserts and fixes the rod 31 provided at the bottom of the base 5 into the steel pipe 33 embedded in the recess 32 formed at the construction position. The rod 31 is provided with a plurality of protrusions 30 extending in a substantially horizontal direction on the outer peripheral surface. The tip of the protrusion 30 is in contact with the wall surface of the steel pipe 33. Thereby, the horizontal movement of the base 5 through the rod 31 is prevented. The gap between the rod 31 and the steel pipe 33 is filled with a grout 34 such as mortar. The fixing device 35 configured as described above can firmly fix the base 5 at the construction position by the action of the protrusion 30 and the grout 34.
[0017]
1 and 2, the base 5 includes a driving position adjusting unit 20 and an inclination angle adjusting unit 21.
[0018]
The driving position adjusting unit 20 is driving position adjusting means for adjusting the driving position of the pile 4 by moving the leader 2. For example, the driving position adjusting unit 20 includes a first movable base 22 placed on the base 5, And a second movable table 23 placed on the movable table 22.
[0019]
A jack unit 24 that connects the base 5 and the first movable base 22 and extends and contracts in the direction of arrow Y shown in FIG. 2 is attached to the first movable base 22. A wheel 26 that travels on a travel groove 25 provided on the surface of the base 5 is attached to the bottom of the first movable base 22. As a result, the first movable base 22 can move horizontally in the direction of the arrow Y in accordance with the expansion and contraction of the jack unit 24.
[0020]
The second movable base 23 is attached with a jack unit 27 that connects the first movable base 22 and the second movable base 23 and expands and contracts in the direction of arrow X shown in FIG. The second movable base 23 has a wheel 28 attached to the bottom, and can move horizontally in the direction of the arrow X in accordance with the expansion and contraction of the jack unit 27.
[0021]
The driving position adjusting unit 20 further includes a support column 29 that is disposed on the upper surface of the second movable base 23 and is integrated with the reader 2. The support column 29 moves in conjunction with the movement of the first movable table 22 and the second movable table 23. Accordingly, the reader 2 connected to the support column 29 moves in conjunction with the movement of the support column 29.
[0022]
The driving position adjusting unit 20 includes a gear 41 that meshes with a tooth portion 40 provided on a part of the outer peripheral surface of the support column 29. The column 29 rotates in the circumferential direction according to the rotation of the gear 41.
[0023]
The inclination angle adjusting unit 21 is an inclination angle adjusting means for adjusting the inclination angle of the pile 4 by inclining the leader 2, for example, a jack unit 21a that expands and contracts in the arrow X direction shown in FIG. 2 and the arrow Y direction shown in FIG. And a jack unit 21b that expands and contracts.
[0024]
The jack unit 21 a connects the support column 29 and the first movable base 22. By the expansion and contraction of the jack unit 21a, the support column 29 can be inclined in the arrow X direction. The reader 2 is inclined in the arrow X direction according to the inclination of the support column 29.
[0025]
The jack unit 21 b connects the second movable base 23 and the support column 29. By the expansion and contraction of the jack unit 21b, the support column 29 can be inclined in the arrow Y direction. And according to the inclination of the support | pillar 29, the reader | leader 2 inclines in the arrow Y direction.
[0026]
Next, the operation of the pile driving apparatus 1 according to this embodiment and the pile driving method according to this embodiment will be described. As shown in FIG. 1, first, the leader 2 having the base 5 attached to the bottom and the pile driving unit 3 attached to the side is suspended by the crane 10 and moved to above the driving position of the pile 4. Then, the reader 2 is lowered to fix the base 5 at the construction position. The pile driving unit 3 may be attached to the reader 2 after the base 5 is fixed to the construction position.
[0027]
Next, the pile 4 is attached to the pile driving unit 3. Thereafter, the leader 2 is moved by the driving position adjusting unit 20 and the inclination angle adjusting unit 21 to adjust the driving position and the inclination angle of the pile 4.
[0028]
When adjusting the driving position of the pile 4, the jack unit 24 is expanded and contracted to move the first movable base 22, thereby moving the leader 2 in the arrow Y direction in FIG. 2. Thereby, the driving position adjustment of the pile 4 in the arrow Y direction can be performed.
[0029]
Further, the jack 2 is expanded and contracted to move the second movable base 23, thereby moving the reader 2 in the direction of arrow X in FIG. Thereby, driving position adjustment of the pile 4 in the arrow X direction can be performed.
[0030]
Further, by rotating the gear 41, the support column 29 is rotated in the circumferential direction. Thereby, the fine adjustment of the driving position of the pile 4 can be performed.
[0031]
On the other hand, when the inclination angle of the pile 4 is adjusted, the leader 2 is inclined in the direction of arrow X in FIG. Thereby, the inclination angle adjustment of the pile 4 in the arrow X direction can be performed.
[0032]
Further, by extending and contracting the jack unit 21b and tilting the support column 29, the reader 2 is tilted in the direction of arrow Y in FIG. Thereby, the inclination-angle adjustment of the arrow 4 direction of the pile 4 can be performed.
[0033]
After adjusting the driving position and inclination angle of the pile 4 in this way, the pile driving unit 3 is operated and the pile 4 is driven into the ground.
[0034]
According to the pile driving device 1 and the pile driving method according to the above-described embodiment, the leader 2 is moved by the driving position adjusting unit 20 after the base 5 is fixed at the construction position, and the driving position of the pile 4 is adjusted. It can be performed. For this reason, the base 5 may be fixed at an arbitrary position near the driving position of the pile 4, and the driving position can be adjusted more easily than when the base 5 is moved to adjust the driving position. Can do.
[0035]
In addition, since the inclination angle adjusting unit 21 is provided, the inclination angle of the pile 4 can be adjusted freely after the base 5 is fixed at the construction position, so that the pile 4 can be driven at a desired angle. it can.
[0036]
FIG. 4 is a view showing a pile driving apparatus according to the second embodiment of the present invention, and FIG. 5 is a schematic arrow view taken along VV of the pile driving apparatus shown in FIG. The pile driving device 50 according to the present embodiment is different in the portion of the driving position adjusting unit 20 in the pile driving device 1 shown in FIG.
[0037]
The pile driving device 50 includes a driving position adjusting unit 51 that connects the base 5 and the support column 29. The driving position adjusting unit 51 includes a plurality of jack units 51a to 51f. Each jack unit 51 a to 51 f has one end attached to the base 5 and the other end attached to the lower portion of the support column 29. In order to stabilize the support column 29, it is desirable that at least three of these jack units 51a to 51f support the lower portion of the support column 29 at three or more locations.
[0038]
The driving position adjusting unit 51 according to the present embodiment includes six jack units 51a to 51f. Then, two jack units 51 a to 51 f are attached to the lower three portions of the support column 29, respectively.
[0039]
These jack units 51a to 51f can extend and contract independently. And the support | pillar 29 is moved by expanding / contracting each jack unit 51a-51f, and the reader | leader 2 can be freely moved to the arrow X, Y direction shown in FIG. Therefore, the driving position of the pile 4 can be easily adjusted.
[0040]
As mentioned above, although this invention was concretely demonstrated based on embodiment, this invention is not limited to the said embodiment. For example, in the above embodiment, the leader 2 is supported by the upper part and the lower part by fixing the leader 2 to the base 5 while being suspended by the crane 10, but after being fixed to the base 5, the leader 2 is detached from the crane 10. You may support only by the base 5. FIG.
[0041]
【The invention's effect】
According to the present invention, after fixing the base to the construction position by the fixing means, the leader can be moved relative to the base to adjust the driving position of the pile. Therefore, the driving position of the pile can be easily adjusted.
[Brief description of the drawings]
FIG. 1 is a view showing a pile driving apparatus according to a first embodiment of the present invention.
FIG. 2 is a schematic arrow view taken along II-II of the pile driving apparatus shown in FIG.
FIG. 3 is a schematic view showing an example of fixing means.
FIG. 4 is a view showing a pile driving apparatus according to a second embodiment of the present invention.
FIG. 5 is a schematic view taken along VV of the pile driving device shown in FIG. 4;
DESCRIPTION OF SYMBOLS 1 ... Pile driving device 2 ... Leader 3 ... Pile driving unit 4 ... Pile 5 ... Base 6 ... Anchor 10 ... Crane 20 ... Driving position adjustment unit 21 ... Inclination angle adjustment unit 21a ... Jack unit 21b ... Jack unit 22 ... Movable base 23 ... Movable base 24 ... Jack unit 27 ... Jack unit 29 ... Prop 30 ... Protruding part 31 ... Rod 32 ... Recess 34 ... Grout 35 ... Fixing device 40 ... Tooth part 41 ... Gear 50 ... Pile driving device 51 ... Position adjustment unit 51a ... Jack unit

Claims (5)

Pile comprising a leader that can be suspended and moved, a pile driving means that is attached so as to be able to move up and down along the leader, and a base that is attached to the lower part of the leader and has a fixing means for fixing it to a construction position. In the driving device,
The base includes a driving position adjusting means for adjusting a driving position of the pile by moving the leader in a horizontal direction with respect to the base by a jack unit ;
Pile driving device characterized by.   The pile driving device according to claim 1, wherein the base further includes an inclination angle adjusting means for adjusting the inclination angle of the pile by inclining the leader.   The fixing means includes a rod having a plurality of protrusions extending in a horizontal direction on an outer peripheral surface and protruding downward from the base, and the rod is inserted into a recess formed at the construction position, and the protrusion 3. The fixing to the construction position is performed by bringing a tip of the contact portion into contact with a wall portion of the concave portion and filling a gap between the rod and the wall portion of the concave portion with grout. Pile driving device. A pile driving method for driving a pile into the ground by a pile driving means attached to the leader,
Hang the leader and move to above the driving position of the pile,
Lowering the leader and fixing the base attached to the lower part of the leader in the construction position,
Adjusting the driving position of the pile by moving the leader in a horizontal direction with respect to the base by a jack unit ;
Pile driving method characterized by   The pile driving method according to claim 4, wherein after the base is fixed at a construction position, the inclination of the pile is adjusted by tilting the leader.

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