KR102221270B1 - Assisting apparatus for pulling out inclined pile and method for pulling out inclined pile at marine - Google Patents

Abstract

The present invention provides an offshore inclined pile drawing auxiliary device and a marine inclined pile drawing method capable of drawing out a concrete pile obliquely mounted on the sea floor while minimizing friction with the ground along the axial direction of the concrete pile.

Description

BACKGROUND OF THE INVENTION {ASSISTING APPARATUS FOR PULLING OUT INCLINED PILE AND METHOD FOR PULLING OUT INCLINED PILE AT MARINE}

The present invention relates to a sea inclined pile drawing method for removing and removing inclined piles obliquely embedded in the sea floor, and to a sea inclined pile drawing assistance device used therein.

In general, concrete piles are being constructed on the sea floor in order to build port structures such as piers.

As a kind of concrete pile, concrete piles such as Pre-stressed High-tension Concrete (PHC) piles are widely used.

The PHC pile is a structure for piles manufactured to form a hollow part in the core by applying a centrifugal force after installing a plurality of tension members radially by a pretension method and pouring concrete.

Meanwhile, in the regeneration project for port structures such as piers, it is necessary to remove previously constructed concrete piles.

In general, for concrete piles, a drawing ring is mounted on the upper part of the concrete pile, and the drawing ring is pulled with a crane or the like to draw the concrete pile from the sea floor.

Concrete piles embedded in the sea floor in a vertical direction are not a big problem, but concrete piles embedded in the sea floor at an angle become a problem due to the frictional force of the piles.

That is, in the case of a concrete pile inserted in an inclined seabed, a hook is usually installed at the top of the concrete pile to pull up the concrete pile, but in this process, the middle part of the concrete pile is broken due to the frictional force of the lower part or the middle part of the concrete pile. Problems often arise.

This is due to the nature of the concrete, which is vulnerable to tension, and the lifting force applied obliquely to the axial direction of the concrete pile.

In this way, when the middle part of the concrete pile is broken, the upper part of the broken concrete pile is located below the water surface or below the sea floor, so it is very difficult to pull out the broken concrete pile.

Republic of Korea Patent Registration No. 10-1248393 "Concrete pile drawing method and drawing tool buried in the ground" (registered on March 22, 2013)

The present invention was conceived to solve the problems of the prior art as described above, and assists in drawing off a concrete pile obliquely mounted on the sea floor while minimizing friction with the ground along the axial direction of the concrete pile. It is intended to provide a device and a method of drawing off inclined piles.

In order to solve the above problems, the present invention is a device for assisting the drawing of an inclined pile, which is a concrete pile obliquely embedded in the sea floor: pants provided on the water surface; A crane mounted on the trousers and provided with a winch drum, a boom, and a catch fork for lifting; A leader coupled with an upper end to the front end of the boom and a lower end coupled to the front end of the catch fork to be obliquely disposed; A top sheave block provided with a plurality of elevating leader side guide sheaves and coupled to an upper end of the leader; A press-fit winch drum mounting stand provided to protrude toward the rear at the lower end of the leader; A press-fit winch drum provided on the press-fit winch drum mounting table; A guide sheave for connecting a press-fitting winch drum provided in front of the lower end of the leader; A leader side guide sheave for press-fitting provided on each of the left and right sides in front of the lower end of the leader; A casing auger body disposed in front of the leader and coupled to the leader so as to reciprocate up and down along the leader, a pair of driving motors provided on both left and right sides of the casing auger body, and inside the casing auger body A ring gear rotated by the rotational force of the pair of driving motors, a coupling flange that is coupled to the ring gear and protrudes downward from the lower end of the casing auger body and rotates with the ring gear, and the casing auger body A casing auger unit comprising an auger-side guide sieve for press-fitting provided on each of the lower left and right sides, and an auger-side guide sieve for lifting and lowering provided on each of the upper left and right sides of the casing auger body; In order to lift the casing auger body up and down, one end is wound around the lifting winch drum, and the other end passes through the lifting leader side guide sheave and is connected to the lifting auger side guide sheave; In order to pull the casing auger body downward, one end is wound around the press-in winch drum, and the other end passes through the guide sieve for connecting the press-fit winch drum, the press-fit auger side guide sheave and the press-fit leader side guide sheave. A wire cable for press-fitting made to be connected to; Press-fitting comprising a press-fit casing steel pipe in the form of a steel pipe extending in the vertical direction, a casing socket coupled to the upper end of the press-fit casing steel pipe and bolted to the coupling flange, and a casing ring bit provided at the lower end of the press-fit casing steel pipe Casing; A leader fixture coupled to the lower end of the leader, a pair of steel pipe support arms disposed on both left and right sides of the press-fit casing steel pipe passing in front of the leader fixture and one end rotatably coupled to the leader fixture, and the press-fit casing A plurality of guide rollers provided on the steel pipe support arm in order to make cloud contact with the outer circumferential surface of the steel pipe, one end is coupled to the leader holder and the other end is coupled to the steel pipe support arm so that the pair of steel pipe support arms are open or closed. A press-fit casing steel pipe guide including a cylinder for driving; It characterized in that it comprises a.

In another idea of the present invention, in the sea inclined pile drawing method: Around the upper end of the inclined pile, which is a concrete pile obliquely embedded in the sea floor, pants provided on the water surface, mounted on the pants, and a winch drum, boom, catch for lifting A crane equipped with a fork, a leader with an upper end coupled to the front end of the boom and an inclined lower end coupled to the front end of the catch fork, and a top sheave coupled to the upper end of the leader with a plurality of guide sheaves on the leader side for elevating Block, a press-fit winch drum seat provided on the lower end of the leader to protrude toward the rear, a press-fit winch drum provided on the press-fit winch drum seat, and a press-fit winch drum provided in front of the lower end of the leader Guide sheave, a leader side guide sheave for press-fitting provided on each of the left and right sides of the front of the lower end of the leader, a casing auger body disposed in front of the leader and coupled to the leader so as to reciprocate up and down along the leader, and the A pair of driving motors provided on both left and right sides of the casing auger body, a ring gear rotated by the rotational force of the pair of driving motors inside the casing auger body, and a lower end of the casing auger body coupled to the ring gear A coupling flange that protrudes downward from and rotates with the ring gear, an auger-side guide sheave for press-fitting provided on each of the lower left and right sides of the casing auger body, and an elevation provided on each of the upper left and right sides of the casing auger body A casing auger unit comprising an auger side guide sheave for, in order to lift the casing auger body in the vertical direction, one end is wound around the lifting winch drum, and the other end passes through the lifting leader side guide sheave for the lifting. A wire cable for lifting and lowering made to be connected to the guide sheave on the auger side, one end is wound around the press-fit winch drum in order to pull the casing auger body downward, and the other end passes the press-fit winch drum connection guide sheave. Wire cable for press-fitting to be connected to the guide sheave on the auger side and the guide sheave on the leader side for press-fitting Evil, including a press-fit casing steel pipe in the form of a steel pipe extending in the vertical direction, a casing socket coupled to an upper end of the press-fit casing steel pipe and bolted to the coupling flange, and a casing ring bit provided at the lower end of the press-fit casing steel pipe. A press-fit casing made of, a leader holder coupled to the lower end of the leader, and a pair of steel pipe support arms disposed on both left and right sides of the press-fit casing steel pipe passing in front of the leader holder and one end rotatably coupled to the leader holder , A plurality of guide rollers provided on the steel pipe support arm in order to make cloud contact with the outer circumferential surface of the press-fit casing steel pipe, and one end is coupled to the leader holder and the other end is coupled to the steel pipe support arm so that the pair of steel pipe support arms Preparing a sea inclined pile drawing assistance device comprising a press-fit casing steel pipe guide hole having a driving cylinder to open or close; Press-fitting the press-fit casing of the offshore inclined pile drawing assistance device into the ground around the inclined pile so that the inclined pile is inserted into the press-fit casing; Separating the press-fit casing of the offshore inclined pile drawing assistance device from the inclined pile; Installing a drawing ring on the upper end of the inclined pile; Drawing the inclined piles from the sea floor by using the pull-out rings of the inclined piles; It characterized in that it comprises a.

As described above, the present invention can draw a concrete pile obliquely mounted on the sea floor while minimizing friction with the ground along the axial direction of the concrete pile.

This prevents the occurrence of problems such as breaking the concrete pile during the drawing process.

1 is a conceptual diagram of a state in which an auxiliary device for drawing an inclined offshore pile according to an embodiment of the present invention is prepared around an inclined pile,
Figure 2 is a conceptual diagram of the offshore inclined pile drawing assistance device of Figure 1,
3 is a front conceptual view of the casing auger unit of FIG. 2;
Figure 4 is a side conceptual view of the casing auger unit of Figure 2,
5 is a side conceptual view of the lower end of the reader of FIG. 2;
6 is a schematic plan view of FIG. 5;
7 is a plan view of the press-fit casing steel pipe guide of FIG. 2,
8 to 10 are conceptual cross-sectional views sequentially expressing a state in which a press-fit casing is press-fit to the sea floor along an inclined pile;
11 is a conceptual cross-sectional view of a state in which the press-fit casing is separated from the inclined pile after FIG. 10;
12 is a connection state diagram of a wire cable for press fitting for press fitting of the press fitting casing in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. However, the present invention may be implemented in a number of different forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are given to similar parts throughout the specification.

Throughout the specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated.

1 is a conceptual diagram of a state in which an auxiliary device for drawing an inclined offshore pile according to an embodiment of the present invention is prepared around an inclined pile, FIG. 2 is a conceptual diagram of the auxiliary device for drawing an inclined offshore pile of FIG. 1, and FIG. A front conceptual view of the casing auger unit, Figure 4 is a side conceptual view of the casing auger unit of Figure 2, Figure 5 is a side conceptual view of the lower end of the leader of Figure 2, Figure 6 is a plan view of Figure 5, Figure 7 is 2 is a schematic plan view of the press-fit casing steel pipe guide, FIGS. 8 to 10 are conceptual cross-sectional views sequentially expressing a state in which the press-fit casing is pressed into the sea floor along an inclined pile, and FIG. 11 is a press-fit casing from the inclined pile after FIG. It is a conceptual cross-sectional view of the detached state, and FIG. 12 is a connection state diagram of a wire cable for press fitting for press fitting of the press fitting casing in FIG. 2.

An inclined pile (1) is embedded in the sea floor.

The inclined pile (1) is a concrete pile inclined to the sea floor, and in particular, the concrete pile of this embodiment is a PHC pile.

The upper end of the inclined pile 1 may be exposed above the water surface or located below the water surface.

The device is arranged around the inclined pile (1).

This apparatus is largely composed of a trousers 10, a crane 20, a leader 100, a casing auger unit 200, a press-fit casing 300, and the like.

Trousers 10 are provided on the water surface, and a crane 20 is mounted on the trousers 10.

The trousers 10 on which the crane 20 is mounted may be mounted in a form in which the crane 20 is simply mounted on the trousers 10 or the crane 20 is integrated with the trousers 10.

The crane 20 is provided with a winch drum 21 for lifting and lowering, a boom 22, a catch fork 23, and the like.

The leader 100 may be obliquely disposed by the boom 22 and the catch fork 23.

That is, the upper end of the leader 100 is coupled to the front end of the boom 22, the lower end of the leader 100 is coupled to the front end of the catch fork 23, and the posture and length of the boom 22 and the catch fork 23 are By changing the leader 100 is disposed inclined to be parallel to the extension line of the inclined pile 1 embedded in the sea floor.

A top sheave block 110 is provided on the upper end of the reader 100.

The top sheave block 110 is provided with a plurality of leader-side guide sheaves 111 for lifting.

A winch drum seat 120 for press-fitting is provided at the lower end of the leader 100.

The press-fit winch drum seat 120 is provided in a form protruding toward the rear at the lower end of the leader 100.

A press-fit winch drum 121 is provided on the press-fit winch drum mounting table 120.

A guide sheave 101 for connecting a winch drum for press-fitting is provided in front of the lower end of the leader 100.

In addition, leader-side guide sheaves 102a and 102b for press-fitting are provided on both left and right sides of the front of the lower end of the reader 100.

A casing auger unit 200 is provided in front of the leader 100.

The casing auger unit 200 includes a casing auger body 210 and a casing driving unit.

The casing auger body 210 is disposed in front of the leader 100 and is coupled to the leader 100 so as to reciprocate up and down along the leader 100.

The casing auger body 210 is provided with a casing driving unit including a pair of driving motors 221, a ring gear (not shown), and a coupling flange 222.

A pair of driving motors 221 are provided on both upper left and right sides of the casing auger body 210.

A ring gear (not shown) rotated by a pair of driving motors 221 is provided inside the casing auger body 210, and a coupling flange 222 is coupled to the ring gear, and the coupling flange 222 is a ring It rotates with the gear.

The coupling flange 222 is provided in a form protruding downward from the lower end of the casing auger body 210.

A press-fit casing steel pipe 301 is coupled to the coupling flange 222 of the casing auger unit 200 as described above via the casing socket 302.

The configuration of the drive motor 221, the ring gear, and the coupling flange 222 is a general technique related to the casing auger unit 200, so a detailed description thereof will be omitted.

On each of the lower left and right sides of the casing auger body 210, auger side guide sieves 231a and 231b for press-fitting are provided.

Each of the upper left and right sides of the casing auger body 210 is provided with auger side guide sieves 232a and 232b for lifting.

A wire cable 31 for lifting is provided for lifting the casing auger body 210 in the vertical direction.

The elevating wire cable 31 has one end wound on the elevating winch drum 21 of the crane 20 and the other end passing through the elevating leader side guide sheave 111 of the top sheave block 110 and a casing auger unit ( 200) is made to be connected to the auger side guide sheaves (232a, 232b) for lifting.

Therefore, when the lifting winch drum 21 winds the lifting wire cable 31, the casing auger unit 200 moves upward, and when the lifting winch drum 21 unwinds the lifting wire cable 31, the casing The auger unit 200 moves downward.

In order to pull the casing auger body 210 downward, a wire cable 32 for press-fitting is provided.

The press-fit wire cable 32 has one end wound on a press-fit winch drum 121 disposed on the press-fit winch drum mounting table 120, and the other end of the guide sheave for connecting the press-fit winch drum ( It is made to be connected to the press-fit auger side guide sheaves (231a, 231b) of the casing auger unit 200 through 101 and the press-fit leader side guide sheaves (102a, 120b) of the reader (100).

Therefore, when the press-fit winch drum 121 winds the press-fit wire cable 32, the casing auger unit 200 is pulled downward, thereby allowing the press-fit casing 300 to be press-fit to the sea floor.

The press-fit casing 300 is coupled to the coupling flange 222 of the casing auger unit 200.

The press-fit casing 300 includes a press-fit casing steel pipe 301, a casing socket 302, and a casing ring bit 303.

The press-fit casing steel pipe 301 is in the form of a steel pipe extending long in the vertical direction.

It is preferable that the length of the press-fit casing steel pipe 301 is longer than the length of the inclined pile 1.

A casing socket 302 is coupled to the upper end of the press-fit casing steel pipe 301, and a casing ring bit 303 is provided at the lower end of the press-fit casing steel pipe 301.

The casing socket 302 is coupled to the upper end of the press-fit casing steel pipe 301 to be bolted to the coupling flange 222.

The casing ring bit 303 is provided in the lower end of the press-fit casing steel pipe 301 in a ring shape, and a plurality of drilling bits are provided at each of the inner circumferential surface, the outer circumferential surface, and the lower end.

A press-fit casing steel pipe guide hole 130 is provided at the lower end of the leader 100.

The press-fit casing steel pipe guide 130 is for guiding the press-fit casing steel pipe 301 from the lower end of the leader 100 to be press-fit in an inclined direction.

The press-fit casing steel pipe guide unit 130 includes a leader fixing table 131, a pair of steel pipe support arms 132, a plurality of guide rollers 133, and a driving cylinder 134.

The reader fixture 131 is coupled to the front of the reader 100.

A pair of steel pipe support arms 132 are rotatably coupled to the leader fixture 131.

A pair of steel pipe support arms 132 are disposed on both left and right sides of the press-fit casing steel pipe 301 passing in front of the leader fixture 131.

The steel pipe support arm 132 is provided with a plurality of guide rollers 133 for rolling contact with the outer peripheral surface of the press-fit casing steel pipe 301.

Each of the driving cylinders 134 has one end coupled to the leader fixture 131 and the other end coupled to the steel pipe support arm 132 so that the pair of steel pipe support arms 132 open or contract.

When a pair of steel pipe support arms 132 are opened by a pair of driving cylinders 130, the press-fit casing steel pipe 301 can be positioned between the pair of steel pipe support arms 132, and then a pair When the pair of steel pipe support arms 132 are constricted by the driving cylinder 130, the plurality of guide rollers 133 are in rolling contact with the outer circumferential surface of the press-fit casing steel pipe 301, and the press-fit casing steel pipe 301 ) So that it can be pressed in in an inclined direction.

That is, the press-fit casing 300 is supported in a state in which the press-fit casing steel pipe 301 is in rolling contact with the press-fit casing steel pipe guide hole 130, and the casing socket 302 is a coupling flange 222 of the casing auger unit 200 Due to the coupled state can be located on the extension line of the inclined pile (1).

The operation of this device will be described.

An inclined pile (1), which is a drawing target, is embedded in the sea floor, and the upper end of the inclined pile (1) is exposed above the water surface.

Prepare the device as shown in Figure 1 around the upper end of the inclined pile (1).

The press-fit casing 300 is positioned on the extension line of the inclined pile 1 by the movement of the pants 10 and the operation of the crane 20.

Thereafter, as shown in FIGS. 8 to 10, the press-fit casing 300 is press-fitted to the sea floor along the inclined pile 1.

First, as the lifting wire cable 31 is released from the lifting winch drum 21, the casing auger unit 200 moves downward along the leader 100, and the driving motor 221 of the casing auger unit 200 When is rotated, the ring gear and the coupling flange 222 rotate, and the press-fit casing 300 coupled thereto rotates around the axial direction and moves downward together with the casing auger unit 200, and the casing ring bit 303 ) Will excavate the ground.

That is, the press-fit casing 300 moves in a downward direction so that the inclined pile 1 is inserted into the press-fit casing 300, and thereby, the press-fit casing 300 rotates on the surrounding ground surrounding the inclined pile 1 Get stuck.

In the initial stage when the press-fit casing 300 is mounted on the sea floor, the lower movement of the press-fit casing 300 is possible with only the weight of the casing auger unit 200.

However, when the press-fit casing 300 is deeply embedded in the sea floor, it is not easily inserted by the weight of the casing auger unit 200, and at this time, the press-fit winch drum 121 winds the press-fit wire cable 32.

Accordingly, the casing auger unit 200 is strongly pulled downward, and the press-fit casing 300 connected to the casing auger unit 200 is press-fitted to the sea floor with a strong force.

Through this process, as shown in FIG. 10, the press-fit casing 300 is press-fit into the surrounding ground of the inclined pile 1 to the lower end of the inclined pile 1.

Thereafter, as shown in FIG. 11, the press-fit casing 300 is moved upward and separated from the inclined pile 1.

That is, as the elevating wire cable 31 is wound around the elevating winch drum 21, the casing auger unit 200 moves upward, and thereby the press-fit casing 300 also moves upward to the bottom of the sea and the inclined pile (1). Deviates from

When the press-fit casing 300 is separated from the inclined pile 1, the inclined pile 1 from which the surrounding ground is removed is left on the sea floor.

That is, the inclined pile 1 is in a state in which the frictional force with respect to the surrounding ground is significantly lowered.

Thereafter, a pull-out ring (1a) is installed on the upper end of the inclined pile (1) as shown in FIG. 11.

When the inclined pile 1 is pulled out with this device or another crane using such a pull-out ring 1a, the inclined pile 1 can be very easily pulled from the sea floor.

The above description of the present invention is for illustrative purposes only, and those of ordinary skill in the art to which the present invention pertains will be able to understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

1: inclined pile 1a: pull-out ring
10: pants
20: crane
21: lifting winch drum 22: boom
23: catch fork
31: lifting wire cable 32: press fitting wire cable
100: leader
101: guide sheave for connecting winch drum for press-in
102a, 102b: leader side guide sheave for press-fitting
110: top sheave block
111: leader side guide sheave for elevating
120: Press-fit winch drum seat
121: Press-fit winch drum
130: press-fit casing steel pipe guide hole
131: leader holder
132: steel pipe support arm
133: guide roller
134: drive cylinder
200: casing auger unit
210: casing auger body
221: drive motor
222: coupling flange
231a, 231b: auger side guide sheave for press-fitting
232a, 232b: auger side guide sheave for elevating
300: press-fit casing
301: press-fit casing steel pipe
302: casing socket
303: casing ring bit

Claims (2)

As a device to assist with the drawing of inclined piles, which are concrete piles inclined to the sea floor:
Pants provided on the water surface;
A crane mounted on the trousers and provided with a winch drum, a boom, and a catch fork for lifting;
A leader coupled with an upper end to the front end of the boom and a lower end coupled to the front end of the catch fork to be obliquely disposed;
A top sheave block provided with a plurality of elevating leader side guide sheaves and coupled to an upper end of the leader;
A press-fit winch drum mounting stand provided to protrude toward the rear at the lower end of the leader;
A press-fit winch drum provided on the press-fit winch drum mounting table;
A guide sheave for connecting a press-fitting winch drum provided in front of the lower end of the leader;
A leader side guide sheave for press-fitting provided on each of the left and right sides in front of the lower end of the leader;
A casing auger body disposed in front of the leader and coupled to the leader so as to reciprocate up and down along the leader, a pair of driving motors provided on both left and right sides of the casing auger body, and inside the casing auger body A ring gear rotated by the rotational force of the pair of driving motors, a coupling flange that is coupled to the ring gear and protrudes downward from the lower end of the casing auger body and rotates with the ring gear, and the casing auger body A casing auger unit comprising an auger-side guide sieve for press-fitting provided on each of the lower left and right sides, and an auger-side guide sieve for lifting and lowering provided on each of the upper left and right sides of the casing auger body;
In order to lift the casing auger body up and down, one end is wound around the lifting winch drum, and the other end passes through the lifting leader side guide sheave and is connected to the lifting auger side guide sheave;
In order to pull the casing auger body downward, one end is wound around the press-in winch drum, and the other end passes through the guide sieve for connecting the press-fit winch drum, the press-fit auger side guide sheave and the press-fit leader side guide sheave. Wire cable for press-fitting made to be connected to;
Press-fitting comprising a press-fit casing steel pipe in the form of a steel pipe extending in the vertical direction, a casing socket coupled to the upper end of the press-fit casing steel pipe and bolted to the coupling flange, and a casing ring bit provided at the lower end of the press-fit casing steel pipe Casing;
A leader fixture coupled to the lower end of the leader, a pair of steel pipe support arms disposed on both left and right sides of the press-fit casing steel pipe passing in front of the leader fixture and one end rotatably coupled to the leader fixture, and the press-fit casing A plurality of guide rollers provided on the steel pipe support arm in order to make cloud contact with the outer circumferential surface of the steel pipe, one end is coupled to the leader holder and the other end is coupled to the steel pipe support arm so that the pair of steel pipe support arms are open or closed. A press-fit casing steel pipe guide including a cylinder for driving;
Offshore inclined pile drawing assistance device, characterized in that comprising a.
Around the upper end of the inclined pile, which is a concrete pile inclined to the sea floor,
Pants on the surface,
A crane mounted on the pants and provided with a winch drum, boom, and catch fork for lifting,
A leader that has an upper end coupled to the front end of the boom and an inclined lower end coupled to the front end of the catch fork,
A plurality of elevating leader side guide sheaves are provided and a top sheave block coupled to the upper end of the leader,
A winch drum seat for press-fitting provided to protrude toward the rear at the lower end of the leader,
A press-fit winch drum provided on the press-fit winch drum mounting table,
Guide sheave for connecting a press-fit winch drum provided in front of the lower end of the leader,
Leader side guide sheaves for press-fitting provided on each of the left and right sides in front of the lower end of the reader
A casing auger body disposed in front of the leader and coupled to the leader so as to reciprocate up and down along the leader, a pair of driving motors provided on both left and right sides of the casing auger body, and inside the casing auger body A ring gear rotated by the rotational force of the pair of driving motors, a coupling flange that is coupled to the ring gear and protrudes downward from the lower end of the casing auger body and rotates with the ring gear, and the casing auger body A casing auger unit comprising an auger-side guide sheave for press-fitting provided on each of the lower left and right sides, and an auger-side guide sheave for lifting and lowering provided on each of the upper left and right sides of the casing auger body,
In order to lift the casing auger body in the vertical direction, one end is wound around the lifting winch drum, and the other end passes through the lifting leader side guide sheave and is connected to the lifting auger side guide sheave,
In order to pull the casing auger body downward, one end is wound around the press-in winch drum, and the other end passes through the guide sieve for connecting the press-fit winch drum, the press-fit auger side guide sheave and the press-fit leader side guide sheave. Wire cable for press-fitting made to be connected to,
Press-fitting comprising a press-fit casing steel pipe in the form of a steel pipe extending in the vertical direction, a casing socket coupled to the upper end of the press-fit casing steel pipe and bolted to the coupling flange, and a casing ring bit provided at the lower end of the press-fit casing steel pipe Casing,
A leader fixture coupled to the lower end of the leader, a pair of steel pipe support arms disposed on both left and right sides of the press-fit casing steel pipe passing in front of the leader fixture and one end rotatably coupled to the leader fixture, and the press-fit casing A plurality of guide rollers provided on the steel pipe support arm in order to make cloud contact with the outer circumferential surface of the steel pipe, one end is coupled to the leader holder and the other end is coupled to the steel pipe support arm so that the pair of steel pipe support arms are open or closed. Preparing a marine inclined pile drawing assistance device comprising a press-fit casing steel pipe guide having a driving cylinder to;
Press-fitting the press-fit casing of the offshore inclined pile drawing assistance device into the ground around the inclined pile so that the inclined pile is inserted into the press-fit casing;
Separating the press-fit casing of the offshore inclined pile drawing assistance device from the inclined pile;
Installing a drawing ring on the upper end of the inclined pile;
Drawing the inclined piles from the sea floor by using the pull-out rings of the inclined piles;
Offshore inclined pile drawing method, characterized in that comprising a.

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