JPH0774502B2 - Main pile, Yatco joining device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a pile-yatco joining device of the present invention, and an object thereof is to provide a device for aligning and joining a pile-yatco with a simple, reliable and safe pile. To do.

(Prior art and its problems) Conventionally, when constructing a bridge or reclaiming water, it is necessary to drive main piles such as steel pipe sheet piles into rock on the bottom of the sea as foundation work. is there.

As a method of driving this pile such as steel pipe sheet pile,
Use a member joined with a short yatco of 5 m or less, piling the yatco part of this joining member and driving the main pile to the bottom of the water, diving after the driving and removing the bolts etc. to separate the main pile and the yatco. , The method of removing Yatco was done.

However, the conventional method is a method that is manageable to pile work with a water depth of up to 10 m, and the water depth required today is a pile work on rock of the bottom of the water exceeding 10 m,
In some cases, this conventional technique could not be applied to pile driving work that can reach 30 m or more.

In other words, this deep pile driving work requires a yatco that exceeds at least 5 m, and in some cases even exceeds 30 m, and a heavy one with a diameter of 1 m or more and 20 tons is large. Since it became too heavy and too heavy, there was no device to move it reliably and easily, and it was not possible to join the Yatco to the main pile.

Further, since the main pile is also large and heavy like the Yatco, it was not possible to join the main pile to the Yatco.

Therefore, there is no member that joins the main pile and the Yatco, each of which is large and heavy.

For this reason, when driving piles into bedrock with a water depth of more than 10 m, the main piles such as steel pipe sheet piles are directly driven without using Yatco, and after the completion of driving, diving and diving the main piles with arc heat etc. It is performed by a method of melting and cutting.

However, since this method performs cutting work under high pressure with a water depth of 30 m, it inevitably shortens the diving time of the diver, and the inefficient cutting method that repeats the diving for a short time many times Met.

Further, there is also a drawback that the supply of oxygen used for melting by arc heat or the like cannot be smoothly performed because the water depth is deep.

Furthermore, the steel pipe sheet piles that are cut and not used as piles have to be discarded as they are, which is a problem from the viewpoint of cost and efficient use of resources.

From this, the main pile that can be cut easily and surely,
Yatco joining members are needed today.

(Problems to be solved by the invention) In view of the above situation, in the industry, the diameter is 1 m or more, and the weight is
There has been a demand for the creation of a device for accurately and easily moving and joining safely, even with a main pile such as a steel pipe sheet pile that can reach about 20 tons. (Means for Solving the Invention) A main pile and a Yatco joining device according to the present invention are a main pile and a Yatco joining device including a Yatco fixing device, a main pile moving device, and a drive mechanism for operating the main pile moving device,
This Yatco fixing device is composed of a plurality of Yatco fixing mounts, and the main pile moving device is a drive roll connected to the main pile moving mount equipped with a secondary roll and a coupling device equipped with a tension adjusting device to the moving mount. The main pile and the Yatco joining device are characterized in that the main pile and the Yatco joining device are connected to each other, and an endless orbit for connecting the both moving racks to each other to move back and forth is provided.

(Operation) The present invention relates to the main pile and the Yatco joining device, which is a joining device that is performed by using the Yatco and the main pile that can be fitted to each other and can be fixed by a bolt or the like, and is fixed to the Yatco fixing device. Then, the main piles such as steel pipe sheet piles mounted on the main pile moving device are moved back and forth and rotated to accurately align and fit the yatco, and then to the mutual bolt holes. This is a joining device using a main pile and a Yatco joining member that can be easily cut by inserting and fixing bolts and then melting the bolts after the pile driving work.

(Structure of the Invention) Hereinafter, the structure of the present invention will be described with reference to the drawings.

FIG. 1 is a series of plan views of a main pile and a Yatco joining apparatus according to an embodiment of the present invention.

In the figure, (1) is the main pile, Yatco joining device, (2) is the Yatco fixing device, (3) is the Yatco fixing stand, (4) is the fall prevention stanchion for the Yatco, (5) is the main pile moving device,
(6) is a movable mount equipped with a secondary roll, (7) is a movable mount equipped with a drive roll, (8) is a rigging screw, (9) is a binder, (10) is a roller chain, (1)
1) is a chain sprocket, (12) is a drive, (1
3) is a rail, (14) is a power supply line, (15) is a stanchion for preventing main piles from falling off, (16) is a power supply line, (17) is a power distribution and control device, (18) is a generator, (19) ) Is a mount for new piles.

The main pile and Yatco joining device (1) of this embodiment is a drive mechanism such as a Yatco fixing device (2) , a main pile moving device (5) , a generator (15), a drive device (12), and a new pile mount. It is a series of devices composed of (17) and a scaffold (not shown) for joining work.

Among the series of devices in this embodiment, the Yatco fixing device (2) comprises two Yatco fixing mounts (3) and a fall prevention stanchion (4) for the Yatco.

This Yatco fixed mount (3) is a mount for fixing the Yatco and moving the Yatco up, down, left and right. As shown in the front view of the Yatco fixed mount (3) in FIG. 2, the frame (3a) , A slide part (3b), jacks (3c) provided on both left and right sides, a slide guide (3e), and a frame base (3f).

In this embodiment, the movement of the jack (3c) is guided by the slide guide (3e) so that the slide portion (3b) can be accurately moved in the vertical direction, and the frame (3a) and the frame base (3f) can be moved. It is possible to move in the left and right direction by adjusting the connection position of the bolt (3d) that connects the

Therefore, the fixed base (3) in this embodiment can be adjusted in the vertical and horizontal positions, and the misalignment of the core of the yatco (Y) can be adjusted.

The stanchion (4) for preventing the fall of the Yatco is a device provided to ensure safety.

The main pile moving device (5) mounts the main piles such as steel pipe sheet piles on two movable mounts, and moves the movable mounts back and forth and rotates to set the yatco fixed mounts (3). It is a device provided for aligning and fitting with (Y).

The main pile moving device (5) will be described with reference to FIG.

Figure 3 (A) is an enlarged side view of an enlarged plan view, FIG. 3 (B) the pile moving device also shown in the first figure (5) of the pile moving apparatus shown in FIG. 1 (5) Is.

The mobile pedestal (6) equipped with the secondary rolls (6a) is provided with four wheels (6b), two at the front and two at the rear, and the wheels (6b) make the mobile pedestal (6) rail (13). ) Move up.

The secondary roll (6a) operates in conjunction with the drive roller of the moving base (7) having a drive roller described later.

The movable pedestal (6) provided with the secondary rolls is connected to the movable pedestal (7) provided with the driving roller (7a) by a coupling material (9) having a rigging screw (8) interposed.

This rigging screw (8) has a turnbuckle-like structure, and adjusts the tension between the moving pedestal (6) and the moving pedestal (7) so that the rigging screw (8) is always tightly connected and the device base is shaken. This prevents the moving bases (6) and (7) from moving due to movements and the like, and impairing alignment of the moving bases.

This bonding material (9) is used for the mobile platform (6) and the mobile platform (7).
There is no particular limitation as long as they can be combined in a tightly-fitted state.

A mobile gantry (7) equipped with this drive roll (7a) is provided with four wheels (7b), two at the front and two at the rear, similar to the mobile gantry (6). This wheel (7b) With rail (1
3) It is a gantry (7) that moves above.

This moving base (7) will be described in more detail. As shown in the enlarged front view of FIG. 3 (C), it has two drive rolls (7a) on the frame (7d) for the moving base. This is a moving platform (7) to which a turning roll platform (7e) is attached, and wheels (7b) are provided below a frame (7d) for the mobile platform.

A main pile (H) such as a steel pipe sheet pile is placed on the turning roll base (7e).

In this example, the rotational drive load of the drive roll (7a) is 20.
t, speed 100-1000mm / min, forward and reverse rotation possible, driven by a roller drive motor (7c) provided on the side.

A roller chain (10) as shown in FIGS. 3 (A) and 3 (B) is used as a transmission device between the moving base (6) equipped with these secondary rolls and the moving base (7) equipped with the drive roller. There is.

The roller chain (10) is provided with a chain sprocket (11) at one end and a drive device (12) at the other end.

This drive device (12) is composed of three chain sprockets (12a), (12b), (12c) and a gear motor (12d) as shown in FIG. 3 (B).

The roller chain (10) is operated by the gear motor (12d) to move the both moving mounts (6) and (7) back and forth.

As a transmission device according to the present invention, a movable mount (6),
(7), the rigging screw (8), the binder (9), and the roller chain (10) constitute the endless track because the moving platform () that is loaded with a large and heavy object such as the main pile (H) When 6) and (7) are used as an end device, not only the binding material (9) bends or an impact load is applied and a certain motion cannot be maintained, but in some cases, the impact load does not This is because the binding material (9) may be cut and the forward and backward movement of the main pile (H) cannot be performed smoothly.

The reason why the roller chain (10) is used in this embodiment is that the present inventors have made extensive studies using various transmission devices such as belts, ropes, chains, etc., and as a result, the roller chain (10) moves smoothly in both directions. This is because it has been found that the gantry (6) and (7) can be moved back and forth.

Also, if the length of this roller chain (10) is 3 m or more,
When the weight of the main pile (H) is about 20t, the roller chain (10) may stretch, so see Fig. 3 (B).
If a carbon steel bar (10a) is placed under the roller chain (10) as shown, the roller chain (10)
Are more preferable because they can be prevented from stretching.

The stanchion (15) for preventing the main pile from falling off is a device provided to prevent the main pile from falling off, and is installed to ensure more safety.

Of the series of this main pile, Yatco joining device (1) ,
The generator (15) of the drive mechanism shown in the first diagram is provided to operate the main pile moving device (5) , and is driven by the power supply line (16) via the power distribution and control device (17) ( It is provided for moving the roller chain (10) back and forth by (12) and rotating the drive roll of the movable frame (7) by the power supply line (14).

Further, the new pile mount (17) shown in FIG. 1 is a mount which is provided for mounting a main pile such as a steel pipe sheet pile before joining and preparing for joining.

This series of equipment is installed in the onshore factory and on the workboat,
A scaffolding (not shown) for joining work is provided so that the work can be performed safely and efficiently.

The main pile and Yatco joining device configured as described below
The usage of (1) will be described in detail.

First, the main pile and the yatco used in the present invention will be described.

FIG. 4 (A) is a side view showing the main pile and the yatco used in the main pile / yatco joining apparatus according to the present invention.

This Yatco (Y) has an upper reinforcement band (Y1) and a main pipe (Y).
2), fitting pipe (Y3), rib plate (Y4), flange (Y
5) and inner valve (Y6).

In addition, as shown in the plan view of Yatco in FIG. 4 (B), a bolt hole (Y7) is formed in this flange (Y5).

The main pile (H) consists of the interposition member (H1), the flange (H2), the rib plate (H3), the main pipe (H4), the joint pipe (H5), the joint joint material (H6) and the lower reinforcing band (H7). It is configured.

Further, bolt holes are also formed in the flange (H2) of the main pile in the same manner as the above-mentioned yatco.

A method of joining the main pile and the Yatco shown in FIG. 5 with the main pile and Yatco joining device (1) will be described with reference to FIG.

This Yatco (Y) is placed on the two Yatco fixing bases (3) of the Yatco fixing device (2) .

On the other hand, the main pile (H) is placed on the moving base (6) equipped with the auxiliary roll and the movable base (7) equipped with the driving roll of the main pile moving device (5) .

Main piles (H) placed on the movable racks (6) and (7)
Is driven by the power from the generator (18) to rotate the drive unit (12) to operate the roller chain (10) to move the movable pedestals (6) and (7) back and forth. 3) Inner valve (Y) of the upper Yatco (Y)
Insert 6) into the main pile (H) and fit the Yatco (Y) and the main pile (H).

At this time, a gap is created between the flanges (Y5) of the Yatco and the flanges (H2) of the main pile due to the interposition member (H1).

Then, the drive roll (7a) of the moving base (7) is rotated to adjust so that the bolt hole (Y8) of the Yatco and the bolt hole of the main pile are aligned with each other.

Insert bolts into both of these bolt holes to fix them with a gap maintained between the Yatco flange (Y5) and the main pile flange (H2).

In this way, the main pile and the Yatco joint member are formed.

These main piles and Yatco joint members can be piled on rocks at the bottom of the water according to a conventional method.

After the completion of the pile driving work, the bolt can be simply cut by melting the bolt using the arc heat or the like from the gap between the flange (Y5) of the Yatco and the flange (H2) of the main pile.

(Effects of the Invention) The main pile and the Yatco joining device according to the present invention are main piles and Yatco joining devices each including a Yatco fixing device, a main pile moving device, and a drive mechanism for operating the main pile moving device, This Yatco fixing device is composed of a plurality of Yatco fixing mounts, and the main pile moving device is a drive roll connected to the main pile moving mount equipped with a secondary roll and a coupling device equipped with a tension adjusting device to the moving mount. The main pile and the Yatco joining device, which are simple and reliable and safe, because the main pile and the Yatco joining device are characterized by comprising a main pile moving gantry equipped with the This is a device for aligning and joining.

[Brief description of drawings]

FIG. 1 is a series of plan views showing a main pile and a Yatco joining device according to an embodiment of the present invention, FIG. 2 is a front view of the fixed mount shown in FIG. 1, and FIG. 3 is an enlarged plan view of the main pile moving device shown in the figure, FIG. 3 (B) is an enlarged side view of the main pile moving device shown in FIG. 1, and FIG. 3 (C) is a moving base equipped with a driving roller. FIG. 4 (A) is an enlarged front view of FIG. 4, FIG. 4 (A) is a side view showing the main pile and the yatco used in the Yatco joining device according to the present invention, and FIG. 4 (B) is a plan view of the Yatco. (1) … Main pile, Yatco joining device (2) … Yatco fixing device (3)… Yatco fixing mount, (5) … Main pile moving device (6)… Movable mount equipped with secondary roll (7)… Drive roll (8) ... Rigging screw, (9) ... Binding material (10) ... Roller chain (11) ... Chain sprocket, (12) ... Drive device (13) ... Rail, (14) ... Feed line ( 16) ... Power supply line (17) ... Distribution and control device, (18) ... Generator

Claims (1)

[Claims] Claim: What is claimed is: 1. A main pile and a Yatco joining device comprising a Yatco fixing device, a main pile moving device and a drive mechanism for operating the main pile moving device, wherein the Yatco fixing device comprises a plurality of Yatco fixing mounts. The main pile moving device includes a main pile moving mount equipped with a secondary roll, a main pile moving mount equipped with a drive roll connected to the moving mount via a coupling device equipped with a tension adjusting device, and both moving mounts. A main pile, which is characterized by consisting of an endless track that is connected and moved back and forth,
Yatco joining device.