JP2825362B2 - Pile pile driving machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises three or more excavating rods each having an excavating blade, and each excavating rod is provided on a leader standing on a support base so that the excavating rod can be driven and rotated and raised and lowered. The present invention relates to a pile pile driving machine.

[0002]

2. Description of the Related Art In a conventional pile pile driving machine, for example, in the case of a three-axis type pile driving machine, as shown in a plan view of a working state in FIG.
Excavation units 01 and 02 are inserted, and core material 03 such as H steel is inserted into intermediate excavation holes 01a and 02a of first and second precedent units 01 and 02, respectively, in view of construction efficiency. The first and second preceding units 01, 02 are connected between the adjacent first and second preceding units 01, 02.
The trailing unit 04 is excavated with the excavation holes 01b, 02b at the end of 02 overlapping on both sides.

[0003] When a pile driving operation is performed by a conventional pile pile driving machine, first, the first preceding unit 01 is used.
After the excavation, the pile driving machine for soil pile is moved to excavate the second preceding unit 02, and at the same time, the core material 03 is suspended by a crane or the like in the middle excavation hole 01a of the first preceding unit 01. Then, the pile pile driving machine is moved and retracted from the excavation position with respect to the second preceding unit 02, and in this state, the core material is inserted into the middle excavation hole 02a of the second preceding unit 02. 03 is suspended by a crane or the like and inserted. Thereafter, the pile pile driving machine is moved to an intermediate position between the first preceding unit 01 and the second preceding unit 02, and the subsequent unit 04 is excavated. After moving the pile driver, the subsequent unit 04
The core material 03 is hung by a crane or the like and inserted into the excavation hole.

[0004]

However, after excavating the second preceding unit 02, the second excavating hole 02
When the core material 03 is inserted into the core material a, the pile pile driving machine must be moved to a place where it does not interfere with the operation of inserting the core material. In order to excavate the row unit 04, the pile pile driving machine must be moved to an intermediate position between the first preceding unit 01 and the second preceding unit 02. In a series of operations, the pile pile driving machine is used. Since it is necessary to move the pile pile driving machine back and forth, there is a disadvantage that the moving amount of the pile pile driving machine increases and the work efficiency decreases. In particular, at a work site on a small site, the position where the pile pile driving machine for soil piles is retracted is easily restricted, and the work efficiency is further reduced.

Therefore, it has been considered that excavation by a pile pile driving machine and insertion of a core material are performed in a linear sequence, but when excavating an adjacent position, the excavation blade body at the end is first. There was a drawback that the excavation work could not be performed smoothly, such as approaching the core material inserted into the excavated borehole, sometimes causing unexpected contact, and damaging the excavation blade.

The present invention has been made in view of the above-mentioned circumstances, and makes excavation by a pile pile driving machine and insertion of a core material straight without contact between the excavation blade body and the core material. It is an object of the present invention to provide a pile driving machine for a soil pile, which can be sequentially performed.

[0007]

According to the present invention, in order to achieve the above-mentioned object, at least three excavating rods having excavating blades are arranged side by side, and a leader installed on a support stand is provided with: In a pile pile driving machine provided with each excavating rod capable of driving rotation and ascending / descending, the excavating blade of the excavating rod on one end side in the juxtaposition direction of the excavating rod is connected to the excavating rod body on the other end side in the juxtaposition direction. It has a smaller diameter than the excavation blade.

[0008]

According to the construction of the pile pile driving machine of the present invention, as shown in the plan view of the working state in FIG. 4, after excavation is performed by the pile pile driving machine, the large diameter excavation hole 12c at the end is formed. The core material (H) is used for all the excavated holes 12a and 12b
Steel) 11 is inserted, and then the small-diameter excavation blade 10a is overlapped with the large-diameter excavation hole 12c, and the small-diameter excavation blade 10a is kept away from the core material (H steel) 11 inserted first. Can be excavated.

[0009]

FIG. 1 is an overall side view of a pile driving machine for a soil pile.
FIG. 2 is an overall front view, in which a mast 3 is erected on a traveling vehicle body 2 as a support having a crawler-type traveling device 1 and a leader 4 is provided on the mast 3. The auger machine 5 and a winch 6 provided on the traveling vehicle body 2 are interlocked and connected via a suspension wire 7.

The auger machine 5 is provided with three excavating rods 8... Which are driven and rotatable. The excavating rods 8 slide on a support block 9 provided below the leader 4. And rotatably held.

As shown in the bottom view of the main part of FIG. 2, the first and second excavating rods 8 have diameters sequentially increasing from one end side to the other end side in the juxtaposition direction. Second and third digging blades 10a, 10b, 10c are provided.

With the above configuration, as shown in the plan view of the working state in FIG. 4, excavation by the pile pile driving machine and insertion of the H steel 11 as the core material can be performed linearly in order. It will be described in detail below.

That is, first, as shown in FIG. 4 (a), a pile pile driving machine for a pile pile has first,
The second and third excavation holes 12a, 12b, and 12c are excavated at once, and the pile pile driving machine is moved to the next excavation position adjacent thereto, and the third excavation hole 12c having the largest diameter is removed. The H steel 11 is inserted into each of the first and second drill holes 12a and 12b.

Next, as shown in FIG. 4 (b), the small-diameter first drilling blade 10a is overlapped with the large-diameter third drilling hole 12c into which the H steel 11 is not inserted, and the second and the third drilling blades 10a are overlapped. After excavating the third excavation holes 12b and 12c and moving the pile pile driving machine to the next excavation position adjacent thereto as described above,
First and second excluding the largest diameter third drilling hole 12c
The H steel 11 is inserted into each of the excavation holes 12a and 12b.

Further, as shown in FIG. 4C, similarly to the above, the large-diameter third excavation hole 1 into which the H steel 11 has not been inserted.
After the first excavating blade 10a having a small diameter is overlapped with the second excavating hole 2c, the second and third excavating holes 12b and 12c are excavated, and the pile pile driving machine for soil pile is moved to the next excavating position adjacent to the second excavating position. The H steel 11 is inserted into each of the first and second drilling holes 12a and 12b except for the third drilling hole 12c.

By repeating these operations, the H steel 11 having the small diameter first excavating blade 10a inserted thereinto is inserted first.
The excavation by the pile pile driving machine and the insertion of the H steel 11 are sequentially performed in a straight line while excavating in a state away from the pile. Even when excavating a corner portion, the H steel 11 into which the small-diameter first excavating blade 10a is inserted first is used.
It can be excavated away from

In the above embodiment, three excavating blades 10a,
Although the diameters of 10b and 10c are sequentially different from small, medium, and large, only the first digging blade 10a is configured to have a small diameter, and the other second and third digging blades 10b, 10c
May have the same diameter.

The core material to be inserted into the excavation holes 12a, 12b and 12c is not limited to the H steel as described above, but may be of various shapes such as an I-beam or a cross steel.

The pile pile driving machine according to the present invention includes:
The present invention is not limited to the type including three excavation rods 8..., And may be applied to a type including four or more excavation rods 8.

[0020] The support of the pile pile driving machine of the present invention may be a traveling vehicle equipped with a tire-type traveling device.

[0021]

According to the pile pile driving machine of the present invention, when a small-diameter excavation blade is overlapped with a large-diameter excavation hole and excavated, the small-diameter excavation blade is inserted first. Since the drilling can be performed away from the material, the small-diameter drilling blade can be prevented from coming into contact with the core material during the drilling, and the drilling with a pile pile driving machine can be performed without contacting the drilling blade with the core material. The insertion of the core material can be performed linearly in order, and the pile pile driving machine for soil piles does not have to be moved and retreated for inserting the core material. The work efficiency can be improved by reducing the labor required for the movement. In particular, since the amount of movement of the pile pile driving machine can be reduced, the work can be performed efficiently even on a small site.

[Brief description of the drawings]

FIG. 1 is a side view of a pile pile driving machine for soil pile.

FIG. 2 is a front view of a pile pile driving machine for soil pile.

FIG. 3 is a bottom view of a main part.

FIG. 4 is a plan view showing a working state.

FIG. 5 is a plan view showing a working state of a conventional example.

[Explanation of symbols]

 2 ... traveling body as support 4 ... leader 8 ... excavating rod 10a ... first excavating blade 10b ... first excavating blade 10c ... first excavating blade

Claims (1)

(57) [Claims] 1. A pile pile driving machine in which three or more excavating rods having excavating blades are juxtaposed, and each excavating rod is provided on a leader erected on a support base so as to be able to rotate and ascend and descend. Wherein the excavation blade of the excavation rod at one end side in the juxtaposition direction of the excavation rod has a smaller diameter than the excavation blade body of the excavation rod at the other end side in the juxtaposition direction. Machine.