KR101055327B1 - Apparatus for steel pile of electric generator from tidal current and constructing method of such apparatus - Google Patents

Abstract

PURPOSE: An apparatus for installing a steel pile of a tidal and wind power generator in the underwater ground and a construction method of a steel pile using the same are provided to stably insert a steel pile into the ground by reducing the vertical moving distance of the steel pile. CONSTITUTION: An apparatus for installing a steel pile of a tidal and wind power generator in the underwater ground comprises a ground fixing unit(10), a vertical sliding unit(20), and a lifting device(50). The ground fixing unit comprises horizontal bodies(11) and support legs(12). A sliding guide member with a path is vertically formed in the ground fixing unit. The vertical sliding unit is vertically located inside the path of the sliding guide member and is vertically slid. The lifting device vertically lifts the vertical sliding unit.

Description

Apparatus for Steel Pile of Electric Generator from Tidal Current and Constructing Method of such Apparatus}

The present invention relates to a steel pipe pile installation apparatus used to inject and install a steel pipe pile into the ground, and to a method of constructing a steel pipe pile by injecting it into the ground using the same, and specifically, uses such as installation of a tidal current generator or a wind power generator. In the installation of steel pipe piles into the ground for use as a pipe, the steel pipe piles are placed on the ground, and the steel pipe piles are installed in the ground. Ground penetration installation device and steel pipe for steel pipe piles for the installation of tidal current generators, wind power generators, etc., which can reduce the length of steel pipe piles and make it easy to carry out installation work by maintaining the verticality of steel pipe piles easily. It relates to a pile construction method.

Steel pipe piles are installed on the ground surface to stably install an algae generator, which is generated by rotating the wings by algae formed in the water, without falling down in the water. Conventionally, while rotating the steel pipe pile by the rotary motor coupled to the top of the steel pipe pile in a state in which the steel pipe pile is placed perpendicular to the ground surface, while lowering the steel pipe pile while applying a pressing force downward from the top of the steel pipe pile, it penetrates into the ground surface. The method of installation was used.

The ground surface is composed of very irregular terrain, and therefore, the point where the steel pipe pile is to be inserted may be formed as a very concave terrain. In particular, this depth of depression may vary depending on the location to be installed. However, as the distance that the steel pipe pile has to descend to reach the ground surface, that is, the distance from the bottom of the steel pipe pile to the ground surface increases, it becomes more difficult to install the pipe while maintaining the verticality of the steel pipe pile. Also deteriorates.

Theoretically, this problem can be solved by lengthening the length of the steel pipe pile so that the bottom of the steel pipe pile is close to the ground surface. In the case of the prior art, there is no choice but to increase the length of the steel pipe piles, and as the length of the steel pipe piles increases, the required cost increases. Furthermore, in this case, in the state before the installation work of the steel pipe pile, the steel pipe pile is excessively protruded into the lower surface of the installation device for installing the steel pipe pile, the installation of the steel pipe pile is settled underwater. In supporting the device on the ground surface, there is a problem that the installation device itself is not installed on the ground surface due to the lower end of the steel pipe pile protruding excessively downward.

This problem occurs not only when constructing steel pipe piles for tidal current generators but also when constructing steel pipe piles for wind power generators or steel pipe piles for other uses.

The present invention was developed in order to solve the problems of the prior art as above, specifically, the steel pipe while rotating the steel pipe pile by a rotary motor coupled to the top of the steel pipe pile in a state in which the steel pipe pile perpendicularly to the ground surface The downward pressure from the top of the pile is applied downward to the steel pipe pile to be installed in the ground surface, while maintaining the vertical angle of the steel pipe pile by reducing the vertical movement distance of the steel pipe pile, that is, the distance from the bottom of the steel pipe pile to the ground surface It aims to be able to penetrate steel pipe piles on the ground surface accurately and stably.

In particular, in the present invention, while installing the steel pipe pile in the state in which the lower end of the steel pipe pile close to the ground surface, to reduce the length of the steel pipe pile to make this state to reduce the material cost, etc. according to the use of the steel pipe pile, It aims to improve the economics of the construction of algae generators.

Furthermore, in the present invention, by reducing the protruding of the steel pipe pile to the lower surface of the installation device for installing the steel pipe pile in the state before the installation work of the steel pipe pile, the installation device of the steel pipe pile is settled underwater. When placed on the ground surface, it is intended to prevent the occurrence of obstacles in the ground surface work of the steel pipe pile installation device due to the lower end of the protruding steel pipe pile.

In order to achieve the above object, in the present invention, as a steel pipe pile installation device for vertically arranging the steel pipe piles and intruding into the ground, it is provided with a horizontal main body and a plurality of support legs provided on the horizontal body and placed on the ground surface. A ground fixing part in which a sliding guide member having a passage is vertically provided; A central sliding member that is expandable and contractable to press the steel pipe pile downward, and is vertically positioned in a passage formed in the sliding guide member to vertically slide; An elevating driving device for elevating the vertical sliding part vertically; The vertical sliding portion descends vertically along the sliding guide member toward the ground surface by the operation of the elevating driving device in the state where the ground fixing portion is located on the ground surface; In the vertical sliding portion is vertically lowered state the expansion pipe penetration member is extended to lower the steel pipe pile is provided with a steel pipe pile installation device characterized in that it has a configuration to be installed in the ground.

In addition, the present invention provides a steel pipe pile construction method for pipe-installing the steel pipe pile to the ground by using the steel pipe pile installation device, specifically installing the steel pipe pile installation apparatus of the present invention on the ground surface; Operating the elevating driving device to lower the vertical sliding part vertically along the sliding guide member toward the ground; And extending the elastic penetration member to lower the steel pipe pile so that the steel pipe pile is penetrated into the ground and provided with the steel pipe pile construction method.

In the present invention, the steel pipe pile mounting apparatus, a plurality of vertical fixed beams are installed side by side at intervals, the guide plate made of a horizontal plate member in a state orthogonal to the vertical fixed beam while connecting the vertical fixed beams to each other The sliding guide member is formed in a configuration provided; A center through hole and a sliding through hole are formed in the guide plate; The plurality of vertical sliding members are coupled to each other in a state arranged side by side with a space to form a space in the center, the expansion and contraction member is in parallel with the sliding member in the central space formed by surrounding the plurality of sliding members The vertical sliding portion is formed in a configuration that is coupled to the sliding member in a state arranged so that; The sliding member passes through the sliding through hole; The elastic penetration member penetrates the central through hole; The elevating driving device includes a pinion member installed on the guide plate, and a rack member installed on the expansion and contraction member and engaged with the pinion member; When the elevating driving device is operated, the sliding member may be lowered while passing through the sliding through hole, and thus the vertical sliding part may be lowered.

According to the present invention, before the steel pipe pile is lowered, the vertical sliding portion can be positioned as close as possible to the ground surface, and in such a state, the steel pipe pile is lowered from the vertical sliding portion and is introduced into the ground surface. Therefore, it is possible to reduce the distance that the steel pipe pile itself has to move vertically, and it is possible to accurately and easily and stably maintain the vertical angle even when using a short length of steel pipe pile during the pipe installation installation work. The effect of being able to penetrate and install in the ground is exhibited.

In addition, in the present invention, because the lower end of the steel pipe pile by the lowering of the vertical sliding portion approaching the ground surface, the penetration work is made by the lowering of the steel pipe pile, it is possible to shorten the length of the steel pipe pile than in the case of the prior art, Accordingly, by reducing the material cost and the like according to the use of the steel pipe pile, it is possible to improve the construction economics of the algae generator.

Furthermore, in the present invention, since the steel pipe pile does not protrude to the bottom of the steel pipe pile mounting apparatus or minimizes the height of the protrusion in the state before the installation work of the steel pipe pile is settled, the steel pipe pile mounting apparatus is settled underwater. When it is placed on the ground surface, it is possible not to cause an operation problem due to the lower end of the steel pipe pile, and the effect of being able to improve the working efficiency of the steel pipe pile is exerted.

Therefore, it is possible to effectively install the steel pipe pile when installing a tidal current generator on the seabed underwater or the wind power generator on the ground, and it is possible to efficiently install the steel pipe pile for other uses.

1 is a schematic perspective view of a steel pipe pile mounting apparatus according to the present invention.
FIG. 2 is a schematic perspective view of the ground fixing unit separately showing only the ground fixing unit in the steel pipe pile mounting apparatus of FIG. 1. FIG.
Figure 3 is a schematic perspective view showing separately by separating only the vertical sliding portion in the steel pipe pile installation apparatus of FIG.
4 is a schematic perspective view illustrating a state in which a steel pipe pile is provided at a lower end of the elastic penetration member provided in the vertical sliding part illustrated in FIG. 3.
5 is a schematic perspective view showing a state in which the steel pipe pile installation apparatus according to the present invention is located on the ground surface.
6 is a schematic perspective view showing a state in which the vertical sliding portion is lowered in a state in which the steel pipe pile installation apparatus according to the present invention is installed on the ground surface as shown in FIG.
FIG. 7 is a schematic view showing a state in which the steel pipe pile is penetrated into the ground surface by the expansion and contraction member of the vertical sliding part following the step shown in FIG. 6.
8 is a schematic perspective view of the steel pipe pile mounting apparatus according to the present invention corresponding to FIG. 1, which is a schematic perspective view showing a state in which a weight body is provided.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiments shown in the drawings, this is described as one embodiment, whereby the technical spirit of the present invention and its core configuration and operation are not limited.

Figure 1 is a schematic perspective view of a steel pipe pile installation device 1 according to the present invention, Figure 2 is a separate ground showing only the ground fixing portion 10 in the steel pipe pile installation device 1 of Figure 1 A schematic perspective view of the fixing part 10 is shown. FIG. 3 is a schematic perspective view separately showing only the vertical sliding part 20 in the steel pipe pile mounting apparatus 1 of FIG. 1, and FIG. 4 is provided in the vertical sliding part 20 illustrated in FIG. 3. A schematic perspective view showing a state in which the steel pipe pile 30 is provided at the bottom of the stretchable penetration member 21 is illustrated.

As shown in the drawings, the steel pipe pile mounting apparatus 1 according to the present invention, the ground fixing portion 10 to be placed on the ground surface, and the expansion and contraction member 21 is provided with a stretchable penetration member 21 in the center and the ground fixing portion It is supported by the (10) is positioned vertically and vertically sliding relative to the ground fixed portion 10 to the steel pipe piles 30 to the ground by the expansion of the expansion and contraction penetration member 21 to be installed in the ground It is configured to include a vertical sliding unit 20, and the elevating driving device 50 for raising and lowering the vertical sliding portion 20.

First, referring to the ground fixing part 10, the ground fixing part 10 includes a horizontal main body 11, a plurality of support legs 12 provided in the horizontal main body 11, and the horizontal main body 11. It is configured to include a sliding guide member 13 disposed vertically in the center to allow the vertical sliding portion 20 to slide in the vertical direction.

The horizontal body 11 is a member positioned horizontally, in the embodiment shown in the drawing, a plurality of beam members placed on the same plane are connected to form a horizontal body 11, wherein the horizontal body 11 is a beam In addition to being formed by the assembly of the members, it may be made of a plate-shaped member. Therefore, the shape and the material of the members constituting the horizontal body 11 are not particularly limited.

The horizontal main body 11 is provided with a plurality of support legs 12. A support foot 14 on which the ground surface is directly placed is provided at a lower end of the support leg 12, and the support foot 14 may be coupled to form a free inclination with respect to the support leg 12. Although the illustration of the ground surface is omitted in the drawing, when the support foot 14 is illustrated, the support foot 14 is placed on an irregular ground surface and is shown in an inclined form. In addition, the support leg 12 may be made of an elastic member such as a jack device. When the steel pipe pile mounting device 1 according to the present invention is placed on a ground surface having an irregular shape, as shown in the drawing, the support leg 12 is stretched or extended to fit the raised or protruding height of the ground surface. It is in a contracted state and the support foot 14 is placed on the ground surface in an inclined state, so that the horizontal main body 11 is placed in the water in a horizontal state.

A sliding guide member 13 is vertically installed at the center of the horizontal body 11. The sliding guide member 13 corresponds to a passage member for guiding the vertical sliding portion 20 to vertically slide up and down. That is, as will be described later, the vertical sliding portion 20 is positioned inside the passage made by the sliding guide member 13 to vertically move up and down.

2 shows the configuration of an example of the sliding guide member 13 in detail. In the exemplary embodiment shown in the drawing, a plurality of vertical fixed beams 131 are installed side by side at intervals, and the guide plate 132 made of a horizontal plate member connects the vertical fixed beams 131 with each other. The sliding guide member 13 is formed to have a configuration orthogonal to the fixed beam 131. In the sliding guide member 13, the plurality of vertical fixed beams 131 are vertically arranged side by side while maintaining a distance from each other by the guide plate 132, a plurality of vertical fixed arranged side by side A passage is formed in the longitudinal direction of the vertical fixed beam 131 by the space surrounded by the beam 131.

The guide plate 132 may be coupled to an upper portion of the vertical fixed beam 131 as shown in the drawing. In this case, the plurality of vertical fixed beams 131 may also be provided at the bottom of the vertical fixed beam 131. Separate connection members 133 may be installed between the plurality of vertical fixed beams 131 to maintain the spacing and verticality, so that the plurality of vertical fixed beams 131 may be connected to each other. In the figure, the member number 15 is a side support member 15 provided to vertically support the sliding guide member 13. In the embodiment shown in the figure, the side support member 15 is composed of a beam member, one end is coupled to the support leg 12 and the other end is coupled to the vertical fixed beam 131, but is not limited to this, side support One end of the beam member constituting the member 15 may be directly connected to the horizontal body 11. Furthermore, the side support member 15 may be disposed between the side surface of the sliding guide member 13 (the side of the vertical fixed beam) and the horizontal body 11 by being not a beam member but a plate member like a reinforcing rib.

In the center of the guide plate 132 is formed a central through hole 1320 through which the elastic penetration member 21 to be described later, and a plurality of sliding members 22 forming the vertical sliding portion 20 to pass through. A plurality of sliding through holes 1321 are formed. The elevating driving device 50 provided for elevating the vertical sliding part 20 may be formed of a rack member 51 and a pinion member 52, as described later, in which case the pinion member 52 is It may be installed on the guide plate 132.

The vertical sliding portion 20 is located inside the passage formed in the center of the sliding guide member 13 and vertically ascends along the passage while pressing the upper end of the steel pipe pile 30 to the steel pipe pile 30 to the ground surface It is a member to intrude. 3 and 4, the configuration of the vertical sliding unit 20 will be described in detail. In the embodiment shown in the drawing, the vertical sliding unit 20 includes a plurality of vertical sliding members 22 formed of rod members. Are arranged side by side at intervals to form a space in the center, the expansion and contraction member 21 is arranged side by side with the sliding member 22 in the central space formed by the plurality of sliding members 22 are surrounded. It has a structure. The upper ends of the sliding member 22 are connected to each other by the upper blocking member 23, and the upper end of the expansion and contracting member 21 is coupled to the upper blocking member 23. The expansion and contraction member 21 has a length that expands and contracts, and is composed of a cylinder portion fixed to the sliding member 22 and an expansion rod that is stretched downward from the cylinder portion. Rotating motor (M) is coupled to the lower end of the expansion rod, the steel pipe pile 30 is coupled to the rotary motor (M). The rotary motor (M) is a member for rotating the steel pipe pile 30 in order to allow the steel pipe pile 30 to penetrate the ground surface. In the drawing, the member number 24 is a spacer member 24 such that the sliding members 22 are arranged side by side while maintaining a distance from each other. When the spacer member 24 is made of a plate member, as shown in the drawing, a through hole is formed in the spacer member 24 so that the elastic penetration member 21 can pass therethrough. The spacer member 24 may be provided in plurality.

On the other hand, in the present invention, the vertical driving unit 20 is located inside the passage formed in the center of the sliding guide member 13, the elevating driving device 50 to vertically move up and down along the passage is specifically rack The member 51 and the pinion member 52 may be formed. In this case, the rack member 51 may be provided to extend on the outer surface of the cylinder part of the expansion and contraction member 21. The rack member 51 is meshed with the pinion member 52 provided in the guide plate 132.

Next, with reference to Figures 5 to 7 will be described the construction method of the steel pipe pile 30 is inserted into the ground by the steel pipe pile installation device (1) according to the present invention. 5 to 7 show a schematic perspective view of the steel pipe pile mounting device 1 according to the present invention, respectively, FIG. 5 shows a state where the steel pipe pile mounting device 1 is placed on the ground surface, and FIG. 6 is vertical. 7 shows a state in which the sliding part 20 is lowered, and FIG. 7 illustrates a state in which the elastic pipe penetration member 21 of the vertical sliding part 20 extends so that the steel pipe pile 30 is inserted into the ground surface.

As described above, the steel pipe pile mounting apparatus 1 according to the present invention is composed of a ground fixing portion 10 and the vertical sliding portion 20, by the sliding guide member 13 provided in the ground fixing portion 10 The vertical sliding part 20 is slidably disposed in the formed passage. Specifically, as described in the embodiment, the guide plate 132 has a central through hole 1320 and a sliding through hole 1321, the sliding member 22 of the vertical sliding portion 20 is the sliding through hole ( It is slidably inserted into the 1321, the elastic penetration member 21 is slidably inserted into the central through hole 1320. Therefore, when the sliding guide member 13 is composed of a plurality of vertical fixed beams 131, the plurality of sliding members 22 made of a rod member is disposed in parallel with the vertical fixed beam 131 is the sliding through hole 1321 The vertical sliding portion 20 is coupled to the ground fixing portion 10 in a sliding form while passing through the. At this time, the rack member 51 provided in the expansion and contraction penetration member 21 is meshed with the pinion member 52 provided in the guide plate 132. Steel pipe pile 30 is coupled to the rotary motor (M) provided at the lower end of the expansion rod of the expansion pipe penetration member (21).

As illustrated in FIG. 5, when the support pipe 14 is in a state where the steel pipe pile mounting device 1 is installed on the ground such that the support body 14 is in contact with the ground and the horizontal body 11 is in a horizontal state, the vertical sliding portion 20 is It descends while sliding in the passage formed by the sliding guide member 13. Specifically, when the pinion member 52 is rotated and operated in the embodiment, the expansion and contraction member 21 in which the rack member 51 is installed is vertically moved downward. Since the upper end of the elastic penetration member 21 is coupled to the upper end of the sliding member 22 by the upper blocking member 23, the sliding member 22 is also lowered when the elastic penetration member 21 is lowered. . That is, the sliding member 22 penetrating the sliding through hole 1321 of the guide plate 132 is guided by the guide plate 132 and slides, and the vertical sliding of the steel pipe pile 30 is coupled. The whole part 20 will fall. In the present invention, since the sliding member 22 is guided by the guide plate 132 and slides as described above, the sliding member 22 is moved and furthermore, the vertical movement of the vertical sliding part 20 is stably exhibited. .

As described above, when the vertical sliding portion 20 is lowered, the steel pipe pile 30 is located close to the ground surface, and as shown in the drawing, in the state before the rod portion of the stretchable penetration member 21 is still extended, If the lower end of the steel pipe pile 30 is located so as not to protrude from the lower end of the sliding member 22, the vertical sliding portion 20 is lowered until the lower end of the sliding member 22 touches the ground surface. In this way, when the vertical sliding portion 20 reaches a sufficiently lowered state, the rod portion of the stretching member 21 is extended. Accordingly, the steel pipe pile 30 protrudes from the lower end of the sliding member 22 and starts to penetrate into the ground surface. At this time, by operating the rotary motor (M) to rotate the steel pipe pile 30 while injecting into the ground can be made easier to ground penetration work of the steel pipe pile (30). As described above, in the present invention, the descending of the vertical sliding part 20 is preferentially made, and the penetration operation is started by the lowering of the steel pipe pile 30 in a state where the lower end of the steel pipe pile 30 is as close as possible to the ground surface.

When the steel pipe pile 30 is inserted into the ground through the above-described process, the upper end of the steel pipe pile 30 is separated from the rotating motor M, and the rod member of the expansion and contracting member 21 is retracted to slide the sliding member. (22) is also raised again.

As described above, in the steel pipe pile installation device 1 according to the present invention, first, the vertical sliding portion 20, in which the steel pipe pile 30 is built, is lowered in a sliding manner so that the lower end of the steel pipe pile 30 is ground surface and the maximum. In a state located close, the ground penetration installation work by the lowering and rotation of the steel pipe pile 30 is made. Therefore, the following advantageous effects are exerted.

In the case of the prior art, which is not provided with the vertical sliding portion 20 and simply pushes the steel pipe pile 30 from the top to the ground, the steel pipe pile from the position where the steel pipe pile 30 starts to descend as described in the background art. The longer the distance to the position where the 30 is inserted into the ground surface, that is, the longer the distance that the steel pipe pile 30 needs to move, the more the steel pipe pile 30 is maintained while maintaining the verticality of the steel pipe pile 30. It becomes difficult to cause the problem that the penetration installation work of the steel pipe pile 30 is unstable.

However, in the present invention, the vertical sliding portion 20 is positioned as close as possible to the ground surface before the steel pipe pile 30 descends as described above, and the steel pipe pile 30 descends from the vertical sliding portion 20 in this state. Invaded the ground. Therefore, compared with the prior art, it is possible to significantly reduce the distance that the steel pipe pile 30 itself must move vertically, that is, the distance between the lower end of the steel pipe pile 30 and the ground surface, thereby increasing the verticality of the steel pipe pile 30. Steel pipe pile 30 can be inserted into the ground accurately and stably while maintaining it.

Particularly, in the case where the steel pipe pile 30 is inserted in a position recessed in irregular ground in the related art, the lower end of the steel pipe pile 30 is in contact with the ground surface while the upper portion of the steel pipe pile 30 is coupled to the steel pipe pile mounting apparatus. In order to make, the length of the steel pipe pile 30 has to be long, and accordingly the cost required for the steel pipe pile 30 has been increased. However, in the present invention, the lower end of the steel pipe pile 30 is as close as possible to the ground surface by the lowering of the vertical sliding portion 20, it is possible to shorten the length of the steel pipe pile 30 than in the prior art, accordingly By reducing the material cost and the like according to the use of the steel pipe pile 30, it is possible to improve the construction economics of the tidal current generator. That is, in the present invention, since a long moving distance can be secured even for a short length of steel pipe pile, a long moving distance can be secured easily and stably even when using a short length of steel pipe pile during penetration installation work of the steel pipe pile. Steel pipe piles will be able to penetrate into the ground.

Furthermore, in the present invention in the state before the installation work of the steel pipe pile, the steel pipe pile 30 is located inside the vertical sliding portion 20, the steel pipe pile 30 of the steel pipe pile installation device (1) Since it does not protrude to the bottom or the height of the protrusion is minimized, for example, in order to construct a steel pipe pile for installation of a tidal current generator, the steel pipe pile installation apparatus 1 is settled in water and placed on the ground surface, that is, the sea bottom. There is no problem such that the lower end of the steel pipe pile 30 is caught in the irregular portion of the sea bottom so that no trouble is caused, and thus the work efficiency of the steel pipe pile 30 can be improved. Exerted.

8 is a schematic perspective view of the steel pipe pile installation apparatus 1 according to the present invention corresponding to the schematic perspective view shown in FIG. 1, as shown in FIG. 8, the steel pipe pile for tidal current generators installed in water In the case of construction, the weight body 40 made of a heavy weight such as concrete may be provided on the horizontal body 11 so that the steel pipe pile installation device 1 can easily sink in the water. When provided with such a weight body 40, the steel pipe pile installation device (1) easily sinks in the water, and by the configuration of the present invention described above, the pipe pipe easily installed in the seabed ground having an uneven ground surface It becomes possible.

1: steel pipe pile installation device
10: ground fixture
11: horizontal body
13: sliding guide member
20: vertical sliding part
21: expansion and contraction member
22: sliding member
30: steel pipe pile

Claims (3)

As a steel pipe pile installation device (1) for vertically arranging the steel pipe pile (30) and intruding into the ground,
It is provided with a horizontal main body 11 and a plurality of support legs 12 provided in the horizontal main body 11, and is placed on the ground surface, the ground height is provided with a vertical sliding guide member 13, the passage is formed Government 10;
In the center, there is a stretchable penetration member 21 which can be stretched to press the steel pipe pile 30 downward, and is positioned vertically in the passage formed in the sliding guide member 13 to vertically slide. A vertical sliding part 20;
A lifting and lowering driving device 50 for lifting and lowering the vertical sliding part 20 vertically;
The vertical sliding portion 20 vertically descends along the sliding guide member 13 toward the ground surface by the operation of the elevating driving device 50 in a state where the ground fixing portion 10 is located on the ground surface;
Steel pipe pile installation device, characterized in that the vertical sliding portion 20 has a configuration in which the expansion and contraction member 21 is extended in the state of vertically lowered to lower the steel pipe pile 30 to be installed in the ground.
The method of claim 1,
A plurality of vertical fixed beams 131 are installed side by side at intervals, the guide plate 132 made of a horizontal plate member is orthogonal to the vertical fixed beams 131 while connecting the vertical fixed beams 131 with each other. The sliding guide member 13 is formed in a configuration provided in one state;
A center through hole 1320 and a sliding through hole 1321 are formed in the guide plate 132;
The plurality of vertical sliding members 22 are coupled to each other in a state arranged side by side with a space to form a space in the center, and the expansion and contraction member in the central space formed by surrounding the plurality of sliding members 22 The vertical sliding part 20 is formed in a configuration in which 21 is coupled with the sliding member 22 in a state in which the sliding member 22 is disposed in parallel with the sliding member 22;
The sliding member 22 penetrates the sliding through hole 1321;
The elastic penetration member 21 penetrates the central through hole 1320;
The lifting and lowering drive device 50 is a pinion member 52 installed on the guide plate 132 and a rack member 51 installed on the expansion / penetration penetration member 21 and engaged with the pinion member 52. );
When the elevating drive device 50 is operated, the steel pipe pile mounting device, characterized in that the vertical sliding portion 20 is lowered by sliding down the sliding member 22 penetrates through the sliding through hole (1321).
As a steel pipe pile construction method of vertically arranging the steel pipe piles 30 and intruding into the ground,
It is provided with a horizontal main body 11 and a plurality of support legs 12 provided in the horizontal main body 11, and is placed on the ground surface, the ground height is provided with a vertical sliding guide member 13, the passage is formed Government 10; In the center, there is a stretchable penetration member 21 which can be stretched to press the steel pipe pile 30 downward, and is positioned vertically in the passage formed in the sliding guide member 13 to vertically slide. A vertical sliding part 20; Installing a steel pipe pile installation device (1) including a lifting device (50) for lifting and lowering the vertical sliding part (20) vertically;
The steel pipe pile mounting device (1) is installed on the ground surface to operate the lifting and lowering device 50 in a state in which the ground fixing portion 10 is placed on the ground surface sliding the vertical sliding portion 20 to the guide member 13 Descending vertically toward the ground plane along the side; And
And extending the elastic penetration member 21 in the state where the vertical sliding portion 20 is vertically lowered to lower the steel pipe pile 30 so that the steel pipe pile 30 is penetrated and installed on the ground. Steel pipe pile construction method characterized in that.

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