JP2012255279A - Pile driving pontoon - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pile driving pontoon capable of easily driving a pile at a desired position.SOLUTION: A pile driving pontoon 1 includes a pontoon body 2 movable on the water, and a pile body holding part 3 that is provided in the pontoon body 2 and, when driving a pile body 11 into the water bottom ground, holds the pile body 11 at a predetermined position in horizontal direction and holds the pile body 11 so as to be relatively movable in vertical direction. The pontoon body 2 has a first guide part 5 that can guide the pile body holding part 3 in horizontal direction.

Description

  The present invention relates to a pile driving platform used when a pile body is placed on a water bottom ground.

Conventionally, when placing pile bodies such as steel pipe piles on the submarine ground, in order to improve the positional accuracy, conductor materials such as guide piles and guide frames are constructed in advance, and pile bodies are constructed based on this guide material. It is common to type in.
Also, if the lead pile cannot be driven in due to the deep water depth or the soft ground layer at the bottom of the water, use a pile pier with a pile keeper that can support the pile body on the main body, A method of driving a pile body into a desired position is known (see, for example, Patent Documents 1 and 2).
Some of these pile driving boats include a pile keeper that supports a plurality of pile bodies at the same time and a pile keeper that supports a single pile body in two stages.

JP 2006-63684 A JP 2006-299724 A

However, in the conventional pile driving platform, the pile keeper is fixed to the carriage and the position of the pile keeper relative to the carriage can only be finely adjusted. If they are different, it is necessary to move the pile driving boat, which takes time and effort.
In particular, when a large number of pile bodies are driven and the distance between the pile bodies is not constant, a pile driver is required every time a pile body is driven, even if a pile driver is provided on the pile driver. It has to be moved, affecting the work schedule.
In addition, the conventional pile driving boat is fixed on the sea by placing a spud or stretching anchors in four directions. It takes a lot of work and time.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a pile driving boat capable of easily placing a pile body at a desired position.

  In order to achieve the above object, a pile driving platform ship according to the present invention includes a main body that can move on the water, and a pile body that is provided on the main body of the base boat when the pile body is placed on the bottom of the ground. In a pile driving boat comprising: a pile holding unit that holds a horizontal position at a predetermined position and holds the pile body so as to be relatively movable in the vertical direction, the base ship body holds the pile body A first guide part capable of guiding the part in the horizontal direction is provided.

In the present invention, since the pile body holding part can move in the horizontal direction with respect to the main body of the ship, if the pile body holding part is moved along the guide part, the pile driving ship is not moved. The pile body to perform can be easily hold | maintained in a desired position.
And since the pile body holding part holds the pile body in a predetermined position while placing the pile body on the water bottom ground, the pile body is held so as to be relatively movable in the vertical direction. The pile body can be reliably placed at the placement position.

In the pile driving boat according to the present invention, the first guide portion is configured to be able to guide the pile body holding portion in one horizontal direction, and the pile body holding portion intersects the one horizontal direction. It is preferable to be configured to be movable in other horizontal directions.
By comprising in this way, the position of the pile body to be laid can be adjusted with sufficient precision.

Further, the pile driving boat according to the present invention is configured to be detachable from the existing pile body that has already been placed, and when mounted on the existing pile body, relative movement in the horizontal direction with respect to the existing pile body is performed. A second guide portion that is restrained and includes an existing pile body holding portion that holds the existing pile body so as to be relatively movable in the vertical direction; It is preferable to provide.
Thus, by providing the existing pile body holding part that can be attached to and detached from the existing pile body, the horizontal position of the main body can be easily and reliably fixed. And since the existing pile body holding | maintenance part can move to a horizontal direction with respect to a trolley main body, the position of a trolley main body can be adjusted easily.
In addition, the existing pile body holding part holds the existing pile body so as to be relatively movable in the vertical direction, so that even if there is a fluctuation in the water level, such as in the sea, the pile driving according to the changing water level. The trolley moves only in the vertical direction and does not move in the horizontal direction. Therefore, a pile body can be easily driven in a desired position.

In the pile driving boat according to the present invention, the second guide portion is configured to be capable of guiding the existing pile body holding portion in one horizontal direction, and the existing pile body holding portion is configured to be the one horizontal direction. It is preferable to be configured to be movable in another horizontal direction that intersects with.
By comprising in this way, the position of a pile driving boat can be adjusted accurately.

According to the present invention, the pile body holding portion can be moved in the horizontal direction with respect to the main body of the boat, so if the pile body holding portion is moved along the guide portion, the pile driving boat is not moved. The pile body to be driven can be easily held at a desired position.
And since the pile body holding part holds the pile body in a predetermined position while placing the pile body on the water bottom ground, the pile body is held so as to be relatively movable in the vertical direction. The pile body can be reliably placed at the placement position.

It is a top view which shows an example of the pile driving platform ship by embodiment of this invention. It is an A direction arrow directional view of FIG. It is a B direction arrow line view of FIG. It is a top view which shows the mode at the time of the movement of the pile driving boat by embodiment of this invention.

Hereinafter, a pile driving boat according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.
As shown in FIG. 1 to FIG. 3, the pile driving boat 1 according to this embodiment feeds out four ropes with mooring anchors stretched in the radial direction from the four corners of the pile driving boat 1 in a plan view, The horizontal position of the pile body 11 when the pile body 11 provided on the bottom ship body 2 is driven on the bottom of the ground is set to a predetermined level. The pile body holding part 3 to hold | maintain in the position, and the existing pile body holding part 4 (refer FIG. 1 and FIG. 3) which can hold | maintain the already piled existing pile body 12 are provided.

As shown in FIG. 1, the carriage main body 2 is formed in a substantially rectangular shape in which one side is longer than the other side in plan view. The carriage main body 2 may be formed in a shape other than a substantially rectangular shape in plan view.
A pair of first rails 51, 51 that extend in the longitudinal direction of the carriage main body 2 (in the direction of arrow C in FIG. 1) and can slide the pile body holding portion 3 are provided on the upper portion of the carriage main body 2. The 1st guide part 5 and the 2nd guide part 6 provided with a pair of 2nd rails 61 and 61 which extend in a longitudinal direction and can slide the existing pile body holding | maintenance part 4 are provided.

The pair of first rails 51, 51 extends over substantially the entire length of the carriage main body 2 in the longitudinal direction. In this embodiment, one pile body holding part 3 is installed so that movement along the 1st rails 51 and 51 is possible.
The pair of second rails 61, 61 are formed shorter than the first rail 51, and are provided at substantially both ends in the longitudinal direction of the carriage main body 2. In the present embodiment, a total of two existing pile body holding parts 4 are provided on the second rails 61 and 61, one on each of the second rails 61 and 61 provided on substantially both ends in the longitudinal direction of the base body 2. It is installed so that it can move along.

The pile body holding unit 3 includes a first traveling unit 31 that travels on the first rails 51, 51, a first holding unit 32 that holds the pile body 11, and the first traveling unit 31 and the first holding unit 32. The 1st connection part 33 connected is provided.
The 1st holding part 32 connected with the 1st connection part 33 is constituted so that it may be located on the outside rather than the outer edge part 2a of the main body 2 of a carriage.

  The first traveling unit 31 includes a hydraulic unit 35 serving as a driving source for traveling.

The 1st holding | maintenance part 32 is holding the position of the horizontal direction of the pile body 11 by surrounding the pile body 11 from a side. In addition, the 1st holding | maintenance part 32 is comprised so that the movement of the up-down direction of the enclosed pile body 11 may not be restrained.
In the present embodiment, the first holding portion 32 includes a pair of rotating surrounding members 36 and 36 and a fixed surrounding member 37 fixed to the first connecting portion 33 and connected to the rotating surrounding members 36 at both ends. ing.

The pair of rotating surrounding members 36, 36 are configured to be rotatable in a horizontal plane around one end 36a on the fixed surrounding member 37 side or the vicinity of one end 36a.
And a pair of rotation surrounding members 36 and 36 surround the pile body 11 with the fixed surrounding member 37 by rotating and the other edge part 36b approaching, and a pile body because the other edge part 36b spaces apart from each other. 11 is configured to be away from 11.
A cylinder 38 for rotating the pair of rotary surrounding members 36, 36 is attached to the first holding portion 32.

The first connecting portion 33 is a member extending in a direction orthogonal to the first rails 51, 51, one end 33 a side is connected to the first holding portion 32, and the other end 33 b side is the first traveling portion 31. The first holding part 32 is connected. And the 1st connection part 33 is comprised so that expansion-contraction is possible in the extending direction, and it is comprised so that adjustment of the separation distance of the 1st driving | running | working part 31 and the 1st holding | maintenance part 32 is possible.
For this reason, the 1st holding | maintenance part 32 can adjust the separation distance from the outer edge part 2a of the main body 2 of a carriage.
In addition, the 1st connection part 33 should just be extended in the direction which cross | intersects the 1st rails 51 and 51, and does not need to be orthogonal to the 1st rails 51 and 51. FIG.

The existing pile body holding part 4 includes a second traveling part 41 that travels on the second rails 61, 61, a second holding part 42 that can hold the existing pile body 12, and a second traveling part 41 and a second holding part. And a second connecting portion 43 that connects the connecting portion 42 and the second connecting portion 43.
The 2nd holding part 42 connected with the 2nd connection part 43 is constituted so that it may be located on the outside rather than the outer edge part 2a of the main body 2 of a carriage.

  The second traveling unit 41 includes a hydraulic unit 45 serving as a driving source for traveling.

The second holding part 42 holds the existing pile body 12 by surrounding the existing pile body 12 from the side. In addition, the 2nd holding | maintenance part 42 is comprised so that the movement of the up-down direction of the existing existing pile body 12 may not be restrained.
And the 2nd holding | maintenance part 42 is fixing the position of the horizontal direction of the pile driving platform ship 1 by being mounted | worn with the existing pile body 12. FIG.
In the present embodiment, the second holding portion 42 includes a pair of rotating surrounding members 46, 46, and a fixed surrounding member 47 that is fixed to the second connecting portion 43 and is connected to the rotating surrounding members 46 at both ends. ing.

The pair of rotating surrounding members 46, 46 are configured to be rotatable in a horizontal plane around one end 46a on the fixed surrounding member 47 side or the vicinity of one end 46a.
And a pair of rotation surrounding members 46 and 46 rotate, the other edge part 46b approaches, and surrounds the existing pile body 12 with the fixed enclosure member 47, and the other edge part 46b spaces apart from each other. It is comprised so that it may leave | separate from the existing pile body 12. FIG.
A cylinder 48 for rotating the pair of rotary surrounding members 46, 46 is attached to the second holding portion 42.

The second connecting portion 43 is a member extending in a direction orthogonal to the second rails 61, 61, one end 43 a side is connected to the second holding portion 42, and the other end 43 b side is the second traveling portion 41. It is connected with. And the 2nd connection part 43 is comprised so that expansion-contraction is possible in the extending direction, and it is comprised so that adjustment of the separation distance of the 2nd driving | running | working part 41 and the 2nd holding | maintenance part 42 is possible.
For this reason, the 2nd holding | maintenance part 42 can adjust the separation distance from the outer edge part 2a of the main body 2 of a carriage.
In addition, the 2nd connection part 43 should just be extended in the direction which cross | intersects the 2nd rails 61 and 61, and does not need to be orthogonal to the 2nd rails 61 and 61. FIG.

A method for placing the pile body 11 using the above-described pile driving boat 1 will be described.
First, the pile driving boat 1 is moved near the place where the pile body 11 is placed.
At this time, when arranging the plurality of pile bodies 11 linearly in the horizontal direction, the direction of arrangement of the plurality of pile bodies 11 and the extending direction of the first rails 51 and 51 are made to coincide.

Subsequently, the existing pile body holding portion 4 is attached to the existing pile body 12.
At this time, the second traveling portion 41 on the second rails 61 and 61 is caused to travel so that the positions of the existing pile body 12 and the second retaining portion 42 of the existing pile body retaining portion 4 coincide with each other, and the second connection The position of the 2nd holding | maintenance part 42 is adjusted by expanding / contracting the part 43 in the extension direction.
Then, the cylinder 48 is operated to rotate the rotating surrounding member 46, the existing pile body 12 is surrounded by the pair of rotating surrounding members 46, 46 and the fixed surrounding member 47, and the existing pile body holding portion 4 is attached to the existing pile body 12. Installing. At this time, the two second holding portions 42 are both held on the existing pile body 12.
As a result, the horizontal position of the pile driving boat 1 is fixed.

Subsequently, the first traveling unit 31 on the first rails 51 and 51 is caused to travel so that the position at which the pile body 11 is placed and the position of the first retaining part 32 of the pile body retaining part 3 coincide with each other. The position of the 1st holding | maintenance part 32 is adjusted by expanding / contracting the 1st connection part 33 in the extension direction.
Then, the cylinder 38 is operated to rotate the rotary surrounding member 36, the pile body 11 is surrounded by the pair of rotating surrounding members 36, 36 and the fixed surrounding member 37, and the pile body 11 placed by the pile body holding portion 3 The horizontal position is held at a predetermined position.

Subsequently, the pile body 11 is placed on the water bottom ground. A pile driving device (not shown) for placing the pile body 11 may be installed in another dairy boat, or may be installed in the pile driving pier 1 of the present embodiment. Here, the pile body holding unit 3 holds the pile body 11 so as not to move in the horizontal direction, and holds the pile body 11 so as to be movable in the vertical direction. When doing so, the pile body 11 is smoothly driven in a desired position.
Then, when the pile body 11 is placed on the water bottom ground, the cylinder 38 is operated to rotate the rotary surrounding member 36, and the pile body holding portion 3 is separated from the pile body 11.
In this way, the pile body 11 is driven.

Then, the 1st driving | running | working part 31 is made to drive | work and the pile body holding | maintenance part 3 is moved to the position which places the pile body 11 next.
And in the moved position, the horizontal position of the pile body 11 to be driven by the pile body holding part 3 is held, and this pile body 11 is driven to the water bottom ground. In this way, the pile bodies 11 are sequentially driven while moving the pile body holding portion 3.

Then, when the driving of the pile body 11 is finished, as shown in FIG. 4, the pair of rotary surrounding members 36 and 36 of the pile body holding portion 3 are separated from each other, and the first connecting portion 33 is contracted. Thus, the first holding part 32 is in a state of approaching the carriage main body 2 side.
In addition, the pair of rotary surrounding members 46, 46 of the existing pile body holding portion 4 are in a state of being separated from each other, and the second connecting portion 43 is contracted to bring the second holding portion 42 closer to the carriage main body 2 side. And
In this way, the pile driving boat 1 becomes movable.
And the base body 2 is moved to the place where another pile body 11 is installed, and the pile body 11 is similarly driven.

Next, the effect of the above-described pile driving boat 1 will be described.
In the pile driving boat 1 according to the present embodiment, the pile body holding portion 3 that holds the pile body 11 to be placed at a predetermined position in the horizontal plane is configured to be movable in the horizontal direction. Without moving the main body 2 according to the placement position, the placement position of the pile body 11 can be adjusted, and the pile body 11 can be placed efficiently.
In addition, the pile driving boat 1 according to the present embodiment has the existing pile body holding portion 4 attached to the existing pile body 12 so that the horizontal position of the base boat body 2 is fixed. Can be easily fixed.

As mentioned above, although embodiment of the pile driving boat 1 by this invention was described, this invention is not limited to said embodiment, It can change suitably in the range which does not deviate from the meaning.
For example, in the above-described embodiment, the pile driver 1 is provided with the existing pile body holding portion 4, and the existing pile body holder 4 is attached to the existing pile body 12 so that the horizontal direction of the pile driver 1. However, the position of the pile driving boat 1 may be fixed using a spud or an anchor without providing the existing pile body holding portion 4.
Moreover, in the embodiment mentioned above, when the existing pile body holding | maintenance part 4 is mounted | worn with the existing pile body 12, it is comprised so that relative movement with the existing pile body 12 can be carried out to an up-down direction. When the pile driving boat 1 is installed on almost no water, the vertical position of the existing pile body 12 may be fixed. Moreover, instead of the structure which the existing pile body holding part 4 and the existing pile body 12 can move relatively, the existing pile body holding part 4 and the existing pile body 12 are fixed relative movement in the vertical direction, and the existing pile body is held. The part 4 and the carrier main body 2 may be configured to be relatively movable.
Moreover, in this embodiment mentioned above, although the existing pile body holding | maintenance part 4 is provided, the number by which the existing pile body holding | maintenance part 4 is installed may be set arbitrarily. In addition, the position of the trolley main body 2 is more stable when a plurality of existing pile body holding portions 4 are provided than one.

DESCRIPTION OF SYMBOLS 1 Pile driver 2 Main body 3 Pile body holding part 4 Existing pile body holding part 5 1st guide part 6 2nd guide part

Claims (4)

A trolley body movable on the water,
A pile provided in the main body and holding the pile body in a predetermined position when the pile body is placed on the water bottom ground, and holding the pile body in a vertically movable manner. In a pile driving boat provided with a body holding part,
The pile carrier is characterized in that the main body includes a first guide part capable of guiding the pile body holding part in the horizontal direction. The first guide part is configured to be able to guide the pile body holding part in one horizontal direction,
The pile driving boat according to claim 1, wherein the pile body holding portion is configured to be movable in another horizontal direction intersecting the one horizontal direction. It is configured to be detachable from an existing pile body that has already been placed, and when mounted on the existing pile body, the relative movement in the horizontal direction is restricted with respect to the existing pile body, and the existing pile body is Equipped with an existing pile body holding part to hold relative movement,
The pile carrier according to claim 1 or 2, wherein the main body includes a second guide part capable of guiding the existing pile body holding part in a horizontal direction. The second guide part is configured to be able to guide the existing pile body holding part in one horizontal direction,
The pile driver according to claim 3, wherein the existing pile body holding portion is configured to be movable in another horizontal direction intersecting the one horizontal direction.

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