WO2018164347A1

WO2018164347A1 - Drilling apparatus for constructing jacket of marine equipment and drilling method using same

Info

Publication number: WO2018164347A1
Application number: PCT/KR2017/013844
Authority: WO
Inventors: 한도윤
Original assignee: 광성지엠(주)
Priority date: 2017-03-10
Filing date: 2017-11-29
Publication date: 2018-09-13

Abstract

The present invention relates to a drilling apparatus for constructing a jacket of marine equipment and a drilling method using the same, the apparatus having a crushed material storage unit for storing crushed materials generated during a drilling operation, so as to enable the drilling operation to be completed by one time construction and effectively supply compressed air to a hammer unit from an external air compressor during a seabed drilling operation using a pin pile-integrated drilling apparatus, thereby enabling the seabed drilling operation to be smoothly performed by means of the hammer unit.

Description

Jacketed drilling equipment for offshore facilities and drilling methods using the same

The present invention is provided with a shredding material storage unit for storing the shredding generated during the drilling work to complete the drilling work in a single construction, from the external air compressor to the hammer unit during the seabed ground drilling work using the integrated pin pile mill The present invention relates to a perforation apparatus for a jacket construction of a marine facility and a perforation method using the same, by which compressed air can be effectively supplied to facilitate the perforation work of the seabed ground through a hammer unit.

When installing offshore facilities, such as offshore wind turbines, in the sea far from land, a jacket may be used as the basis for offshore installations. The jacket has a number of jacket piles built on the seabed. The jacket is constructed such that the jacket piles are secured to the seabed so that the offshore installation can be installed thereon.

For example, the jacket can be constructed on the seabed in the following manner. With the jacket seated on the seabed, the fabric mill is inserted into the jacket pile to drill the seabed through the bottom of the jacket pile. Thereafter, the fabric mill is removed and a pin pile is inserted into the jacket pile to insert the lower portion into the drill hole. Then, by filling the grouting material in the drilling hole, the pin file and the jacket file, it is possible to fix the jacket on the seabed ground.

By the way, in the conventional drilling operation by the drilling device, according to the depth of the drilling hole, the operator performs the operation of extending the length of the drilling device by fastening the rod to the drilling device. At this time, the worker is to perform the work to fasten the rod in the narrow workbench installed on the upper end of the jacket, there may be a risk of safety accident. In addition, since the time required for the fastening of the rod, the drilling time is long, there was a side that is difficult to cope quickly with weather changes such as typhoons.

In other words, the jacket fabrication factory of the marine equipment according to the prior art extends the length of the drilling device by additionally tightening the rod (length 3m) after 3m drilling, and adds the rod (length 3m) again after drilling by an extended length 3m. There is a problem that the work is slow and complicated because the work to be repeated to extend the length of the punching device by tightening.

In addition, in the conventional seawater mill, especially in seas with a thick layer of pearl, such as the southwestern sea of Korea, after the drilling depth is reached, the pearl flows into the empty space that was perforated in the process of removing the millwork and inserting the pin pile. In the process of inserting a pin file, there were many difficulties.

In order to solve this problem, the present inventor has proposed a pin pile integral fabric mill, and the present invention has also been filed. Looking at the pin pile integrated fabric factory is pending, the length of the punching device and the pin pile will be very long because it is designed in consideration of the depth of drilling from the beginning to omit the additional tightening process. Considering the ground conditions of the Southwest Sea of Korea, it is expected that the length of the pin pile integrated drilling device will be about 60 ~ 70m.

On the other hand, since most of the mill factory punches the ground by supplying the high pressure air supplied from the external air compressor to the hammer unit, the air supply line should be formed from the air compressor to the top of the punching device. In the case of a perforation device that requires additional fastening of rods as in the prior art, the length of the air supply line formed from the air compressor to the top of the perforation device was not long enough to affect the performance of the hammer unit. That is, even if the rod is additionally tightened, the length of the punching device inserted into the jacket file is long, and the length from the air compressor to the top of the punching device can be kept to a minimum.

However, the situation is different in the case of a pin pile integrated punching device. The pin pile integral fabricator assembled from the barge is lifted up through the crane and inserted into the jacket pile, where an air supply line must be formed from the air compressor located above the barge to the height of the crane. That is, since the length of the pin pile integrated punching device itself reaches about 60 to 70 m, the length of the air supply line formed from the air compressor located on the barge to the top of the punching device is not less than 70 m, which is the length of the pin pile integrated punching device. The conclusion is that it should be. When the conventional air compressor-based technology is applied to the pin pile integrated drilling device as it is, the hammer unit located at the bottom of the drilling device may not properly exhibit its performance. Therefore, the situation is urgently taken measures.

Technical problem to be solved in the present invention, the marine equipment is equipped with an air tank that can store the high-pressure air to supply to the hammer unit, and the crushed material storage unit for storing the crushed material that is difficult to discharge to the outside due to the installation of the air tank It is to provide a punching device for the construction of the jacket and a drilling method using the same.

In addition, by temporarily storing high-pressure air supplied from a remote air compressor in the air tank inside the drilling device, when the drilling operation starts, open the valve in the air tank through the remote control to supply high pressure air to the hammer unit. In order to effectively supply high pressure air to the hammer unit located at the bottom of the drilling device, it is possible to secure the smooth operation performance of the hammer unit. As a result, there is an air tank that can smoothly perform the submarine ground drilling work through the hammer unit. It is to provide a perforation apparatus for the construction of the jacket of the marine facility provided and a perforation method using the same.

Jacket construction cloth factory of the present invention for solving the above technical problem, the pin pile; A hammer unit installed in the pin pile and receiving high pressure air from an external air compressor to drill seabed ground; A fixing unit fixed to the inner wall of the pin file to fix the pin file; An air tank for storing the high pressure air supplied from the air compressor and supplying the high pressure air to the hammer unit by a signal applied from the outside; the air tank includes: a body; A plurality of air inlet pipes installed through one side of the body and into which high pressure air supplied from an air compressor is introduced; A plurality of air discharge pipes installed through the other side of the body and through which high pressure air stored in the body is discharged; And a valve unit installed at an end of the air discharge tube located inside the body and opening and closing the discharge of the high pressure air to the air discharge tube by a signal applied from the outside.

Here, the valve unit is fixed to the end of the air discharge pipe and the fixed block is formed with a plurality of air discharge holes connected to the air discharge pipe, and the reciprocating movement with respect to the fixed block is installed a plurality of opening and closing the air discharge hole A valve block provided with a valve body, and a drive cylinder installed in the valve block and driven by an internally applied piston rod to reciprocate the valve block to drive the air discharge hole to be opened and closed through the valve body. Can be configured.

In this case, the valve unit may be provided with a central support tube installed through the central portion of the fixed block, and a fixed plate fixed to the inner side of the central support tube and coupled to the end of the piston rod.

At this time, the end of the central support pipe is exposed to the outside of the fixed block, the insertion groove having a shape corresponding to the end of the central support pipe can be formed in the center of the valve block so that the exposed end of the central support pipe can be inserted. have.

In addition, the fixed block may be installed to penetrate the valve block guide pins to guide the reciprocating movement of the valve block.

On the other hand, the inside of the body may be provided with a plurality of support plates formed with a plurality of through-holes for supporting the air inlet pipe and the air discharge pipe, and a plurality of hydraulic pipes installed across the body.

In this case, the support plate includes a first support plate disposed in the middle portion of the body, and a second support plate disposed at both ends of the body, wherein the air inlet pipe and the air discharge pipe are supported through the second support plate, and the hydraulic The tube may be installed to be supported through the first support plate and the second support plate.

A bracket is coupled to each end of the air inlet pipe and the air discharge pipe exposed to both ends of the body and the ends of the hydraulic pipe, and determines the coupling position when the bracket is coupled to another bracket. Positioning pins can be installed.

In addition, the jacket fabrication device for construction of the present invention, a drilling device for drilling seabed ground, pin pile; A hammer unit disposed in the pin pile to be partially drawn out through the bottom of the pin pile, the hammer unit being operated to strike the seabed by receiving high pressure air from an external air compressor; A rotation driving unit disposed in the pin pile and connected to an upper end of the hammer unit to receive hydraulic pressure from an external hydraulic power pack to rotate the hammer unit about an up and down axis; A plurality of fixing units disposed in the pin piles to fix the pin piles by receiving hydraulic pressure from the hydraulic power pack and expanding the compressed pins against the inner wall of the pin piles from a contracted state; A debris storage unit disposed in the pin pile and storing debris generated by driving the hammer unit; An air tank disposed in the pin pile and storing high pressure air supplied from the air compressor and supplying high pressure air to the hammer unit; And rods having a predetermined length so as to organically connect the hammer unit, the rotation driving unit, the fixed unit, the crushed material storage unit, and the air tank and reach a depth of perforation; It is configured to include.

At this time, the crushed material storage unit, crushed material storage tank; Upper and lower connection rods mounted on upper and lower ends of the crushed matter storage tank and connected to each other by auxiliary connectors; A debris discharge pipe disposed in the debris storage tank and receiving debris discharged through the debris discharge passages of the hammer unit, the rotary drive unit, and the fixed unit from the lower opening and discharged through the upper opening; A crushed separation net spaced upwardly from a lower end of the crushed product storage tank and installed in the crushed product storage tank to separate water in the crushed material and discharge it to the lower side; And a water discharge network installed along a lower circumference of the crushed matter storage tank and discharging water separated through the crushed matter separation network to the outside.

In addition, the volume of the lysate reservoir may be 1.3-1.7 times the volume of perforation.

As another specific means for achieving the above object, the present invention is a method for drilling the seabed ground using a fabric mill for the construction of the offshore facilities equipped with an air tank and a crushed material storage unit, the hammer unit into the pin pile Assembling a pin pile-integrated fabric mill by inputting a fabric mill, which in turn connects a rotary drive unit, a plurality of fixed units, a crushed material storage unit, an air tank and rods; Inserting the pin pile integrated fabric mill into the jacket file of the jacket seated on the seabed; Fixing the pin pile by extending the plurality of fixing units by an external hydraulic power pack in a state in which the hammer unit is disposed in the pin pile to be partially drawn out through the lower portion of the pin pile; And operating the rotary drive unit by the hydraulic power pack to rotate the hammer unit, and simultaneously punching the hammer ground by hitting the hammer unit by an external air compressor.

According to the drilling device for the construction of the jacket of the marine facility of the present invention having the above-described configuration and a drilling method using the same, by installing an air tank in the pin pile, the hammer unit located at the bottom of the pin pile exhibits the impact performance sufficiently to improve the drilling efficiency It can increase the effect.

In addition, when the air tank is installed in the pin pile, it was difficult to apply the existing crushed material discharge system as it is, by installing the crushed material storage unit in the pin file, there is an effect that can solve the problem of discharged crushed material.

Even though the length of the air supply line from the external air compressor to the top of the drilling device becomes longer due to the integration of the pin pile and the drilling device, the high pressure air provided by the air compressor is temporarily stored in the air tank provided inside the drilling device. When the drilling operation starts, open the valve in the air tank through the remote control to supply high pressure air to the hammer unit, and supply the high pressure air to the hammer unit located at the bottom of the drilling device effectively to ensure the smooth operation of the hammer unit. It can be secured, and this has the effect of smoothly performing the drilling of the seabed ground through the hammer unit.

In addition, in the configuration of the valve unit for opening and closing the discharge of the high-pressure air in the air tank, a fixed block fixed to the end side of the air discharge pipe, a valve block which is installed to be movable relative to the fixed block, the valve block by hydraulic pressure It can be implemented by applying a simple mechanical configuration such as a driving cylinder that opens and closes the air discharge pipe by moving the engine, and it is easy to manufacture because the internal structure of the air tank is not complicated. There is.

In addition, the central support pipe is installed in the form of penetrating the fixed block in the air tank, and the fixed plate to which the end of the piston rod of the drive cylinder is fixed to the inside of the center support pipe is fixed, and is supplied by the hydraulic pressure supplied into the drive cylinder. When the piston rod is advanced, the valve block including the driving cylinder is retracted from the fixed plate so that the air discharge pipe is opened so that the high pressure air stored in the air tank can be selectively provided to the hammer unit through the remote control. Through this, the air tank can be manufactured and operated at a lower cost.

In addition, in configuring the valve unit in the air tank, the end of the center support pipe located on the air discharge side is exposed through the fixing block to the upper portion, while the end of the exposed center support pipe is inserted in the center of the valve block so as to be inserted. By forming an insertion groove of a shape corresponding to the end of the pipe, the valve block is guided along the exposed end outer surface of the central support pipe during the reciprocating movement of the valve block has the effect that the valve block can be reciprocated stably without moving left and right.

In addition, since a separate guide pin is installed on one side of the fixed block to guide the reciprocating motion of the valve block, the valve block can stably linearly move along a predetermined path through the guide pin.

In addition, as a plurality of support plates are installed in the body of the air tank so that the air inlet pipe, the air discharge pipe, and the hydraulic pipe can be individually supported, the air inlet pipe, the air discharge pipe, and the hydraulic pipes are installed in the air tank. In the structure can be stably supported on a predetermined position through a plurality of support plates, even if the vibration occurs during the operation of the drilling device, the air inlet pipe, air discharge pipe, and hydraulic pipe shakes to cause noise In addition, there is an effect that can prevent the situation that causes deformation and damage in advance.

In addition, by installing a pair of first support plate in the middle portion of the air tank, and a pair of second support plate on both ends of the air tank, it is possible to make structural reinforcement throughout the air tank body, Since the air tank can be structurally reinforced by inserting the support plate in the minimum number, the cost can be reduced.

In addition, as the positioning pins are installed on the upper and lower bracket portions disposed outside the both ends of the body of the air tank, when the air tank is coupled with another structure positioned at the upper and lower parts thereof, the pins are precisely coupled through the positioning pins. By being coupled to the position, there is an effect that can fundamentally block the problem that the air transfer line and the hydraulic transfer line between the air tank and the upper and lower structures are intersected with each other to cause a smooth device operation.

In addition, since the inspection window that allows the internal perspective of the air tank to be detachably installed on one side of the outer surface of the air tank, the inspection window can easily grasp the internal situation of the air tank, and after separating the inspection window from the body, The hydraulic cylinder can be easily connected between the driving cylinder and the hydraulic pipe, and there is an effect that the internal parts can be easily replaced or maintained.

In addition, a pressure gauge is installed to penetrate the upper side bracket of the air tank and reach the inside of the central support tube, and a pressure gauge for detecting the internal air pressure of the air tank is installed, and the internal pressure of the air tank measured from the pressure gauge is measured in real time. It is implemented to be displayed on the display window, so that the operator can grasp the internal air pressure of the air tank in real time through the display screen of the wireless remote control from a long distance, and can immediately enter the maintenance work when the internal pressure of the air tank is abnormal. There is.

Figure 1 is a block diagram showing the overall configuration of the drilling device for construction of the jacket of the marine installation according to an embodiment of the present invention.

2 is an exploded perspective view of the hammer unit of FIG.

3 is a longitudinal cross-sectional view of the hammer unit of FIG.

4 is a cross-sectional view of the stabilizer of FIG. 1.

5 is a longitudinal cross-sectional view of the rotary drive unit of FIG.

6 is a perspective view of the first fixing unit of FIG. 1.

7 and 8 are operation diagrams illustrating the operation process of the first fixing unit.

9 is a perspective view of the rod of FIG. 1.

10 is a longitudinal cross-sectional view of the trash storage unit of FIG.

FIG. 11 is a perspective view of the air tank of FIG. 1. FIG.

12 is a perspective view showing the internal structure of the air tank of FIG.

FIG. 13 is a side view of the air tank of FIG. 11.

14 and 15 are cross-sectional views taken along the line A-A of FIG. 13, and show a comparison of the state before and after the operation of the valve unit in the air tank.

16 and 17 is a view for explaining a method for drilling the seabed ground using a fabric mill for construction of the offshore facility according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like elements throughout the specification.

In this specification, terms such as "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof. In addition, when a part such as a layer, film, region, plate, etc. is said to be "on" another part, this includes not only when the other part is "right on" but also another part in the middle. Conversely, when a part such as a layer, film, region, plate, etc. is "below" another part, this includes not only the other part "below" but also another part in the middle.

Figure 1 is a block diagram showing the overall configuration of a drilling device for construction of a jacket of a marine facility according to an embodiment of the present invention.

Referring to FIG. 1, a jacket construction drilling apparatus 1000 of a marine facility includes a hammer unit 100, a rotation driving unit 200, a first fixing unit 300, a rod 400, and a first And two fixing units 500.

The hammer unit 100 is disposed in the pin pile 10 to be partially drawn out through the bottom of the pin pile 10, and operates to hit the seabed ground by receiving high pressure air from an air compressor 910 located outside.

The rotary drive unit 200 is disposed in the pin pile 10 is connected to the upper side of the hammer unit 100. The rotary drive unit 200 receives the hydraulic pressure from the hydraulic power pack 920 to rotate the hammer unit 100 about the vertical axis.

The first fixing unit 300 is disposed in the pin pile 10 and connected to the upper side of the rotation driving unit 200. The first fixing unit 300 receives the hydraulic pressure from the hydraulic power pack 920 and is fixed to the pin pile 10 as the expansion operation is compressed to the inner wall of the pin pile 10 from the contracted state.

The rods 400 are arranged in the pin pile 10 and connected to a plurality of stages so as to be matched to a set length on an upper side of the first fixing unit 300.

The second fixing unit 500 is disposed in the pin pile 10 and is connected to an upper end of the rod 400 on the uppermost side of the rods 400. The second fixing unit 500 receives the hydraulic pressure from the hydraulic power pack 920 and is fixed to the pin pile 10 as the expansion operation is compressed to the inner wall of the pin pile 10 from the contracted state. Here, the hydraulic power pack 920 may be configured to return after supplying the hydraulic pressure to the rotary drive unit 200 and the first and second fixed units (300, 500).

For example, referring to FIGS. 2 and 3, the hammer unit 100 may include a plurality of hammers 110 and a hammer housing 120.

Each hammer 110 has a cylinder 111, a piston 112, and a drill bit 113. The cylinder 111 receives compressed air from an external air compressor through the upper end. The piston 112 moves up and down in the cylinder 111 by the compressed air supplied into the cylinder 111. The drilling bit 113 is mounted on the lower end of the cylinder 111 to receive a strike force by the lowering operation of the piston 112. The hammer 110 is illustrated as being provided with four, but is not limited to the number thereof.

In detail, the cylinder 111 has a hollow shape, and the upper and lower ends thereof are opened. The cylinder 111 is formed with an annular groove 111a at the lower side. The back head 114 is coupled to the top of the cylinder 111. The back head 114 has an air inlet hole 114a formed along the central axis.

The sleeve 115 is disposed under the back head 114 and forms an air flow path between the inner wall of the cylinder 111. The sleeve 115 has an upper end fixed between the cylinder 111 and the guide 116. The sleeve 115 has an upper hole 115a and a lower hole 115b.

The piston 112 has a through hole 112a formed along the central axis. The piston 112 has an upper jaw 112b and a lower jaw 112c. The upper jaw 112b of the piston 112 opens and closes the lower hole 115b of the sleeve 115 according to the lifting position of the piston 112. The lower jaw 112c of the piston 112 is inserted in close contact with the inner wall of the cylinder 111 or spaced apart from the annular groove 111a of the cylinder 111 according to the lifting position of the piston 112.

The guide 116 is disposed below the back head 114 and fixed to the cylinder 111. The guide 116 is formed with an air flow path 116a for guiding compressed air introduced through the air inlet hole 114a of the back head 114 to the upper hole 115a of the sleeve 115. The guide 116 is formed with a guide rod 116b at the bottom. The guide rod 116b opens and closes the through hole 112a of the piston 112 as the guide rod 116b moves in and out from the upper side during the lifting operation of the piston 112.

The check valve 117 is installed on the top of the guide 116. The check valve 117 opens and closes the air inlet hole 114a of the back head 114. The check valve 117 may include a valve body operable to open and close the air inlet hole 114a, and a spring for applying an elastic force to the valve body in a direction in which the valve body closes the air inlet hole 114a.

The drilling bit 113 is formed with a first air discharge passage 113a for introducing compressed air from the upper end and discharging it to the side. The inlet of the first air discharge passage 113a is fitted to the pipe member 1134 in a state of protruding upward. The pipe member 1134 opens and closes the through-hole 112a of the piston 112 as the piston 112 enters and exits the through-hole 112a of the piston 112 from the lower side during the lifting operation of the piston 112.

The puncturing bit 113 has a bit axis 1131 and a bit block 1132. The bit axis 1131 is connected to the top of the bit block 1132. The bit shaft 1131 is inserted into the lower end opening of the cylinder 111 and supported to be elevated. The bit shaft 1131 may be supported by the lower opening of the cylinder 111 so as to only lift in a rotationally restricted state.

The puncturing bit 113 may further include a wing bit 1133. The bit block 1132 has mounting grooves formed on the bottom and side surfaces thereof. The mounting groove has a surface inclined along the radial direction. The inclined surface is inclined upward toward the outside. The wing bit 1133 has the same inclined surface as the inclined surface of the mounting groove at the top. The wing bit 1133 is supported to move radially along the inclined surface of the mounting groove.

When the wing bit 1133 is separated from the seabed ground, the wing bit 1133 moves to retract inwardly of the bit block 1132 along the inclined surface of the mounting groove by its own weight. At this time, the wing bit 1133 is in a state protruding downward of the mounting groove. In this state, when the wing bit 1133 is placed on the seabed ground, the wing bit 1133 moves out of the bit block 1132 along the inclined surface of the mounting groove. Thus, wing bit 1133 extends from the side of bitblock 1132.

When the hammer unit 100 rotates by the rotation driving unit 200, the wing bit 1133 performs a drilling operation in an extended state from the side of the bit block 1132. Although not illustrated, bit tips may be formed on each bottom surface of the bit block 1132 and the wing bit 1133. The bit tips may be made of cemented carbide and attached to the bitblock 1132 and wing bit 1133.

The operation of the hammer 110 described above will be described below. The lower end of the piston 112 abuts on the upper end of the drilling bit 113 so that the tubular member 1134 of the drilling bit 113 is inserted into the through hole 112a of the piston 112. In this state, when compressed air is supplied into the cylinder 111, the compressed air is filled in the lower space of the piston 112 to generate pressure for raising the piston 112. When the piston 112 is raised by the pressure generated in the lower space of the piston 112, the guide rod 116b is inserted into the through-hole 112a of the piston 112 to seal the upper space of the piston 112. .

The upper space of the piston 112 generates pressure to lower the piston 112 as it is compressed in a closed state. As the piston 112 descends due to the pressure generated in the upper space of the piston 112, the punch bit 113 is hit. Piston 112 provides the impact force to the drill bit 113 while repeating the lifting operation until the supply of the compressed air into the cylinder 111, the drilling of the seabed ground can proceed by the drill bit 113. .

The hammer housing 120 receives the hammers 110 in a state in which each drill bit 113 of the hammers 110 is drawn out through a lower end thereof. The hammer housing 120 has a cylindrical appearance. The hammer housing 120 includes a crushed matter discharge passage 120a and a second air discharge passage 120b. The crushed product discharge passage 120a is formed to penetrate in the vertical direction between the hammers 110. The crushed matter discharge passage 120a discharges the crushed matter generated inside the punched hole during the punching operation to the outside of the punched hole.

The second air discharge passage 120b is formed to connect the first air discharge passage 113a of any one of the hammers 110 and the crushed matter discharge passage 120a. The second air discharge passage 120b provides compressed air to the crushed matter discharge passage 120a, thereby allowing the crushed matter in the drill hole to be smoothly discharged through the crushed matter discharge passage 120a. A filter 126 may be installed at the outlet side of the second air discharge passage 120b. The filter 126 blocks the debris generated during the drilling operation by the hammers 110 into the second air discharge passage 120b.

The connection rod 130 may be mounted on the upper end of the hammer housing 120.

The connection rod 130 may include a lower connection bracket 131, an upper connection bracket 132, and a plurality of connection pipes 133. The lower connection bracket 131 is coupled to the top of the hammer housing 120. The connecting pipes 133 are respectively erected on the lower connection bracket 131, each lower end is fitted through the lower connection bracket 131.

One of the connection pipes 133 is disposed at the center of the lower connection bracket 131, and the other ones are arranged in a circle at the edge of the lower connection bracket 131 about the center connection pipe 133. Each upper end of the connecting pipes 133 is fitted through the upper connecting bracket 132.

The central connection pipe 133 is connected to the crushed matter discharge passage (120a) to discharge the crushed matter. Some of the edge connectors 133 deliver compressed air to the hammers 110 and the other bears the connection rods 130 firmly. The lower connection bracket 131 has a passage for delivering the compressed air supplied through the connection pipes 133 to the hammers 110.

Meanwhile, referring to FIG. 4 along with FIG. 1, a stabilizer 600 may be connected between the hammer unit 100 and the rotation driving unit 200 to be disposed in the pin pile 10. When the hammer unit 100 rotates in the pin pile 10 by the rotation driving unit 200, the stabilizer 600 prevents the hammer unit 100 from shaking from side to side and maintains concentricity. .

The stabilizer 600 may include a connecting rod 610, a rod holder 620, and a rotation support 630. The connecting rod 610 of the stabilizer 600 has a lower end connected with the connecting rod 130 of the hammer unit 100, and an upper end connected with the connecting rod 220 of the rotation driving unit 200.

The connecting rod 610 of the stabilizer 600 has connecting tubes configured in the same manner as the connecting tubes 133 of the connecting rod 130 of the hammer unit 100. The connecting rod 610 of the stabilizer 600 has upper and lower connecting brackets configured in the same manner as the upper connecting bracket 132 of the connecting rod 130 of the hammer unit 100. The connecting rod 610 of the stabilizer 600 may be configured to be longer than the connecting rod 130 of the hammer unit 100.

The rod holder 620 supports the connecting rod 610 by penetrating the center up and down. The rod holder 620 has a cylindrical shape in appearance. The rod holder 620 rotates by receiving the rotational force of the rotation driving unit 200.

The rotary support 630 can include a metal bushing 631, support pieces 632, and ribs 633. The metal bushing 631 is covered around the rod holder 620 to smoothly rotate the rod holder 620. The support pieces 632 are each formed in a shape having the same curvature as the inner wall curvature of the pin pile 10 and spaced apart at regular intervals along the circumferential direction. The support pieces 632 are radially spaced apart from the metal bushing 631 and fixed to the metal bushing 631 via the ribs 633 in a state adjacent to the inner wall of the pin pile 10. The rotation support 630 supports the rotation of the rod holder 620 in the pin pile 10, thereby preventing the hammer unit 100 from shaking when the hammer unit 100 rotates.

Meanwhile, as shown in FIG. 5, the rotation driving unit 200 may include a drive housing 210, a connection rod 220, hydraulic motors 230, and a drive rotor 240. The drive housing 210 has a cylindrical appearance. The connecting rod 220 is mounted on the top of the drive housing 210. The connecting rod 220 of the rotation driving unit 200 is configured in the same manner as the connecting rod 130 of the hammer unit 100, and may further include a connecting pipe that functions as a hydraulic supply pipe and a hydraulic return pipe. The hydraulic pressure supply pipe supplies hydraulic pressure from the hydraulic power pack 920 to the hydraulic motor 230. The hydraulic return tube returns the hydraulic pressure from the hydraulic motor 230 to the hydraulic power pack 920.

The hydraulic motors 230 are embedded in the drive housing 210. The hydraulic motors 230 receive hydraulic pressure from the hydraulic power pack 920 to drive the rotary shafts in rotation. The rotational force of the hydraulic motors 230 may be transmitted to the drive rotor 240 by the gears 250.

Although not shown, the driving housing 210 may be provided with branching / joining means. The branching / joining means is connected to the hydraulic motors 230 by a plurality of tubes. The branching / joining means may branch the hydraulic pressure supplied through one hydraulic supply pipe to supply the hydraulic motors 230. In addition, the branch / confluence means may join the hydraulic pressure discharged from the hydraulic motors 230, respectively, and transmit the hydraulic pressure to one hydraulic return tube.

The driving rotor 240 is partially drawn out through the lower end of the driving housing 210 while being inserted into the driving housing 210. The drive rotor 240 is supported by the drive housing 210 to rotate about an up and down axis. The driving rotor 240 may rotate by receiving the rotational force of the hydraulic motors 230 to rotate the hammer unit 100.

The drive rotor 240 has a crushed discharge passage formed along the central axis. The crushed matter discharge passage of the driving rotor 240 may be connected to the central connector of the connection rod 220 through the auxiliary discharge pipe 211 in the drive housing 210. The drive rotor 240 may have connection passages respectively connected to connection tubes serving as at least air supply pipes among the connection tubes of the stabilizer 600. The drive housing 210 may include a bushing member 212 that inserts the drive rotor 240 at a lower end thereof.

Among the connectors of the connection rod 220, the connectors serving as the air supply pipes may be connected to the bushing member 212 by the auxiliary connectors 260. The bushing member 212 is configured to deliver air supplied through the auxiliary connecting pipes 260 to the connecting passages of the drive rotor 240.

Meanwhile, referring to FIG. 6, the first fixing unit 300 includes a connecting rod 310, a rod holder 320, an upper support plate 330, a lower support plate 340, and an elevating block 350. The hydraulic cylinders 360, the pressing plates 370, the first link members 381, and the second link members 382 may be included.

The connecting rod 310 of the first fixing unit 300 is configured in the same manner as the connecting rod 610 of the stabilizer 600, the hydraulic supply pipes and hydraulic return for the hydraulic motor 230 and the hydraulic cylinder 360 It can be configured to further comprise connecting tubes that function as tubes.

The rod holder 320 supports the connecting rod 310 by penetrating vertically through the center thereof. The rod holder 320 has a cylindrical appearance. The upper support plate 330 is fixed to the top of the rod holder 320. The lower support plate 340 is fixed to the lower end of the rod holder 320. The lifting block 350 is supported by the rod holder 320 so that the lifting block 350 can be lifted between the upper support plate 330 and the lower support plate 340. The lifting block 350 may be supported by the rod holder 320 so as to be lifted and lowered with respect to the rod holder 320.

Hydraulic cylinders 360 are installed between the lifting block 350 and the upper support plate 330. The hydraulic cylinders 360 are supplied with hydraulic pressure from the hydraulic power pack 920 to lower the lifting block 350. One of the cylinder body and the cylinder rod of the hydraulic cylinder 360 may be fixed to the lifting block 350 and the other may be fixed to the upper support plate 330.

Although not shown, the first fixing unit 300 may be provided with a branching / joining means. The branching / joining means is connected to the hydraulic cylinders 360 by a plurality of tubes. The branching / joining means may branch the hydraulic pressure supplied through one hydraulic supply pipe to supply the hydraulic cylinders 360. In addition, the branch / confluence means may join the hydraulic pressure discharged from the hydraulic cylinders 360, respectively, and transmit the hydraulic pressure to one hydraulic return tube.

The pressing plates 370 are arranged at intervals along the circumferential direction between the lifting block 350 and the lower support plate 340. Each of the pair of first link members 381 may be hinged to one end of the pressing plate 370 and the other end may be hinged to the lifting block 350. Each pair of second link members 382 may be hinged to one end of the pressing plate 370 and the other end may be hinged to the lower support plate 340.

7 and 8, when the lifting block 350 descends as each rod of the hydraulic cylinders 360 is extended, the first and

second link members

381 and 382 are folded to the rod holder 320. The pressing plate 370 is moved toward the inner wall of the pin pile 10 while being unfolded from the state. When the first and

second link members

381 and 382 are unfolded until the pressing plate 370 is pressed against the inner wall of the pin pile 10, the operation of the hydraulic cylinders 360 is stopped.

Then, when the lifting block 350 rises as the respective rods of the hydraulic cylinders 360 are contracted, the first and

second link members

381 and 382 are folded in the unfolded state from the rod holder 320 and the pressing plate 370. ) Is spaced apart from the inner wall of the pin pile 10. As another example, when the hydraulic cylinder 360 is installed between the lifting block 350 and the lower support plate 340, the pressing plates 370 and the first and

second link members

381 and 382 are the lifting block 350. It is also possible to be installed between the upper support plate 330.

Meanwhile, as shown in FIG. 9, the rods 400 may include a lower bracket 410, an upper bracket 420, and a plurality of rod tubes 430, respectively. The rod pipes 430 are respectively erected on the lower bracket 410, and each lower end is fitted through the lower bracket 410. One of the rod tubes 430 is disposed at the center of the lower bracket 410, and the other parts are arranged in a circle at the edge of the lower bracket 410 about the center rod tube 430. Each upper end of the rod tubes 430 is fitted through the upper bracket 420.

Some of the edge rod pipes 430 function as air supply pipes for supplying compressed air to the hammers 110, and some are hydraulic supply pipes for supplying hydraulic pressure to the hydraulic motor 230 and the hydraulic cylinder 360. It functions as, the rest firmly supports the rod 400. The rod pipe 430 serving as the hydraulic supply pipe may have a diameter smaller than that of the rod pipe 430 serving as the air supply pipe. The rods 400 are connected in a state in which the rod tubes 430 correspond to each other. Each length of the rods 400 may be appropriately set according to the length of the pin pile 10.

Meanwhile, referring to FIG. 1 along with FIG. 1, the crushed matter storage unit 700 is connected between the lowermost rod 400 of the rods 400 and the first fixing unit 300 in the pin pile 10. Can be arranged. The debris storage unit 700 may include a debris storage tank 710, a connection rod 720, a debris discharge pipe 730, a debris separation network 740, and a water discharge network 750.

At this time, the volume of the crushed product storage tank 710 is preferably 1.3 to 1.7 times the volume of the puncture.

The connecting rods 720 are mounted on the upper and lower ends of the crushed matter storage tank 710. The connecting rods 720 of the crushed matter storage unit 700 are configured in the same manner as the connecting rod 220 of the rotary drive unit 200, and the hydraulic supply pipe and the hydraulic pressure for the hydraulic cylinder 360 of the first fixing unit 300 It may be configured to further include a connector that functions as a return tube. The connecting rods 720 are connected to each other by the auxiliary connecting pipes 711 in the waste reservoir 710. The connectors connected by auxiliary connectors 711 function as air supply lines and hydraulic supply lines and hydraulic return tubes.

The debris discharge pipe 730 is disposed in the debris reservoir 710. The crushed matter discharge pipe 730 receives the crushed matter discharged through the crushed material discharge passages of the hammer unit 100, the rotary drive unit 200, and the first fixed unit 300 from the lower opening and discharges the crushed material through the upper opening.

The crushed matter separating network 740 is spaced upward from the bottom of the crushed matter storage tank 710 and is installed in the crushed matter storage tank 710. The debris separating net 740 separates water in the debris and discharges it downward. The water discharge network 750 is installed along the lower circumference of the crushed product storage tank 710. The water discharge network 750 discharges the separated water through the crushed matter separation network 740 to the outside. Accordingly, the crushed matter storage tank 710 may store crushed material such as crushed rock from which water is removed in an upper space partitioned by the crushed matter separating network 740. The crushed matter stored in the crushed product storage tank 710 may be discharged to the outside after the excavation work is completed.

On the other hand, the second fixing unit 500 is configured in the same manner as the first fixing unit 300, the hydraulic supply pipe and hydraulic return pipe for the hydraulic cylinder 360 of the first fixing unit 300 to the connecting rod 510 The connector may further include a function. The second fixing unit 500 is connected to the rod 400 at the uppermost side through the connecting rod 510.

On the other hand, as shown in Figure 1, the air tank 800 may be connected to the upper side of the second fixing unit 500. The air tank 800 is connected to the connection rod 510 of the second fixing unit 500 by mounting a connection rod 820 at the bottom. The air tank 800 is connected to the air compressor 910 and the hydraulic power pack 920 is equipped with a connecting rod 810 at the top.

In this case, the air compressor 910 may be disposed outside the pin pile 10 and may be disposed on a workbench or barge on the top of the jacket. In addition, the hydraulic power pack 920 may be accommodated in the mounting box 930 and disposed on an upper end of the pin pile 10. At this time, the mounting box 930 may have a connection rod 940 connected to the air compressor 910 and the hydraulic power pack 920 at the bottom. The connecting rod 940 of the mounting box 930 may be configured to be connected to the second fixing unit rod 510 through the connecting

rods

810 and 820 of the air tank 800.

The connecting

rods

810 and 820 of the air tank 800 are configured to be the same as the connecting rod 720 of the crushed matter storage unit 700, and further include a hydraulic supply pipe and a hydraulic return pipe for the hydraulic cylinder of the second fixing unit 500. It can be configured to include.

The air tank 800 receives the compressed air from the external air compressor 910 and delivers the compressed air to the second fixing unit 500 so that the compressed air is loaded with the rods 400, the first fixing unit 300, and the rotation driving unit. A final supply to each hammer 110 via the 200 and stabilizer 600. In this case, some of the connection pipes of the upper connection rod 810 may be used as hydraulic supply pipes and hydraulic return pipes for driving the valve unit (VU) provided in the air tank (800).

Referring again to the air compressor and the air tank of the drilling device of the present invention. When the air compressor 910 is operated in a state in which the barge is positioned above, the length of the air supply line from the air compressor 910 to the upper end of the pin pile 10 is rapidly increased. As the length of the air supply line becomes longer, the air pressure efficiency is lowered, resulting in a problem that the hammer unit 100 cannot properly exhibit performance. In order to solve this problem, the air tank 800 is installed to sufficiently store high pressure air in the pin pile 10 and transmit a constant air pressure to the hammer unit 100.

In addition, the drilling mill of the present invention is a drilling device in which the pin pile 10 designed to have a predetermined length in consideration of the drilling depth is integrated. When the air compressor 910 is operated in a state in which the barge is positioned above the barge, the air compressor 910 ) And the length of the air supply line from the top of the pin pile 10 is very long. The longer the length of the air supply line, the lower the efficiency of delivering air pressure, so that the hammer unit 100 cannot effectively deliver the air pressure to the hammer unit 100 located at the lowermost end of the punching device. In order to solve this problem, by installing the air tank 800 inside the pin pile 10, the compressed air of the high pressure supplied from the external air compressor 910 is sufficiently stored in the air tank 800, and then the drilling operation starts. It is to be able to deliver a constant air pressure from the air tank 800 to the hammer unit 100.

11 to 13 show the detailed structure of the air tank 800 according to the present invention installed in the pin pile 10.

In FIG. 11 and FIG. 12, the air tank 800 is laid on its side so that the internal and external structures of the air tank 800 are clearly visible. Here, the left side of the figure indicates the upper side of the air tank 800 and the right side indicates the lower side of the air tank 800. Therefore, terms indicating the direction of the upper, lower, upper, lower, and the like to be described later will be understood in view of such a position.

11 to 13, the air tank 800 is connected to the air compressor 910 and the hydraulic power pack 920 through a connection rod 810 mounted at the top, and the connection rod 820 disposed at the bottom. It is connected to each other and the second fixing unit 500 through).

Here, the connecting rod 810 mounted on the upper end of the air tank 800 has a plurality of connecting pipes including an upper connecting bracket 805, a plurality of air inlet pipes 812, and a plurality of hydraulic pipes 813. The connection rod 820, which is configured as a lower portion of the air tank 800, includes a lower connection bracket 806, a plurality of air discharge pipes 822, and a plurality of hydraulic pipes 813. It consists of connectors.

Specifically, the air tank 800 is installed through the body 801 and the upper side of the body 801 is formed with an internal space for storing the high-pressure compressed air supplied from the air compressor 910 and the air compressor ( A plurality of air inlet pipe 812 through which the high-pressure compressed air supplied from 910 is introduced, and a plurality of air discharge pipes installed through the lower side of the body 801 and discharged from the compressed air stored in the body 801 ( 822 and a valve unit (VU) installed inside the body 801 and operated by hydraulic pressure when the control signal is applied from the outside to open and close the air discharge pipe 822 through which compressed air is discharged.

The body 801 is formed in a cylindrical shape with the top and bottom closed, and a plurality of air inlet pipes 812 through which the high-pressure compressed air flows into the upper side are installed therethrough, and the lower side is the lower side. A plurality of air discharge pipes 822 through which compressed air stored therein are discharged are provided.

At this time, the plurality of air inlet pipes 812 and the plurality of air discharge pipes 822 are arranged in a circle at a predetermined interval, respectively, and between the air inlet pipe 812 and the air discharge pipe 822 hydraulic power pack A plurality of hydraulic pipes 813 (eight in the embodiment) to which the hydraulic pressure supplied from the 920 is pumped are arranged in a circle.

The connecting rod 810 located at the top of the air tank 800 includes an upper connecting bracket 805, a plurality of air inlet pipes 812, and a plurality of hydraulic pipes 813. The connecting rod 810 is connected to each other with a connecting rod 940 connected to the air compressor 910 and the hydraulic power pack 920.

The upper portion of the air inlet pipe 812 exposed outside the upper end of the body 801 of the air tank 800 is coupled to the upper connection bracket 805 having a disc shape, and the air inlet pipe 812 of the opposite side The lower portion is located inside the body 801.

An upper center support pipe 811 having a circular tube shape is installed through the upper center of the body 801 to be surrounded by a plurality of air inlet pipes 812 and a plurality of hydraulic pipes 813, and the body 801 The upper end of the upper center support pipe 811 exposed to the outside of the upper end is coupled with the upper connection bracket 805.

At this time, the upper diameter of the central support pipe 811, the air inlet pipe 812 and the hydraulic pipe 813 size of the upper central support pipe 811 is formed so that the hydraulic pipe 813 has the smallest size. . In addition, the tube length is formed such that the hydraulic tube 813 is the longest and the upper center support tube 811 has the shortest length.

A plurality of air inlet nozzles 812a are coupled to an upper surface of the upper connection bracket 805 to be connected to each air inlet pipe 812 coupled to the lower surface. At this time, the air inlet nozzle 812a is coupled to expose a portion above the upper surface of the upper connection bracket 805. Therefore, the high pressure compressed air supplied from the upper side is introduced into the air inlet pipe 812 through the air inlet nozzle 812a and then stored in the body 801.

On the other hand, the connection rod 820 located at the lower end of the air tank 800 includes a lower connection bracket 806, a plurality of air discharge pipe 822, and a plurality of hydraulic pipe 813. Here, the plurality of hydraulic pipes 813 are formed through the upper end of the body 801, the plurality of hydraulic pipes 813 to cross the body 801 to the bottom of the body 801 to form the same structure. . The connection rod 820 is connected to each other with the connection rod 510 on the top of the second fixing unit 500.

The lower part of the air discharge pipe 822 exposed outside the bottom of the body 801 of the air tank 800 is coupled with the lower connection bracket 806 having a disc shape, and the air discharge pipe 822 of the air tank 800 is located on the opposite side. The upper portion is located inside the body 801.

The lower center support tube 821 is formed in the center of the lower end of the body 801 is formed through a circular tube shape is surrounded by a plurality of air discharge pipe 822 and a plurality of hydraulic pipe 813, the body 801 The lower end of the lower central support pipe 821 exposed to the lower end of the is coupled to the lower connection bracket 806.

At this time, the lower center support pipe 821 is formed with the same tube diameter as the upper center support pipe 811, the air discharge pipe 822 is also formed with the same pipe diameter as the air inlet pipe 812.

In addition, a plurality of air discharge nozzles 822a are formed on a lower surface of the lower connection bracket 806 so as to be connected to each air discharge pipe 822 coupled to the upper surface. At this time, the air discharge nozzle 822a is formed in a shape recessed in the lower surface of the lower connection bracket 806 so as to be coupled to the upper connection bracket provided on the connection rod 510 of the second fixing unit 500. Therefore, the compressed air discharged to the air discharge pipe 822 may be supplied to the hammer unit 100 through the air discharge nozzle 822a.

In addition, the upper and

lower connection brackets

805 and 806, which are disposed outside both ends of the body 801, are coupled to the positioning pins 816 that determine a coupling position when coupling with another neighboring connection bracket. This positioning pin 816 allows the air tank 800 to be coupled on the correct engagement position when coupled to another structure located above and below it.

On the other hand, the inside of the body 801 of the air tank 800 has a thin disk shape so as to individually support the plurality of air inlet pipe 812 and the air discharge pipe 822 and the plurality of hydraulic pipe 813, respectively. A plurality of

support plates

802 and 803 are provided.

In the

support plates

802 and 803, a plurality of air inlet pipes 812, air discharge pipes 822, hydraulic pipes 813, and upper and lower

center support pipes

811 and 821 are penetrated and supported, respectively, while inside the body 801. A plurality of through holes 802a having various sizes and shapes are formed to move the stored compressed air.

The plurality of

support plates

802 and 803 are fixed to the inner circumferential surface of the body 801 in a state in which the

support plates

802 and 803 are disposed at predetermined positions in the body 801 to compensate for the structural rigidity of the body 801, while the air inlet pipe 812 and air The discharge tube 822, the hydraulic tube 813, and the upper and lower

center support tubes

811 and 821 may be individually supported, and high pressure air may move freely through the through hole 802a in the body 801.

In this case, the plurality of

support plates

802 and 803 may include a pair of first support plates 802 disposed in the longitudinal middle portion of the body 801, and a pair of second support plates disposed at both ends of the body 801. 803).

The pair of first support plates 802 are disposed at regular intervals at a longitudinal intermediate position of the body 801. The first support plate 802 is supported by a plurality of hydraulic pipes 813 crossing the inside of the body 801 while complementing the structural rigidity of the middle portion of the body 801.

A pair of second support plate 803 is disposed on both sides of the longitudinal direction of the body 801 and complements the structural rigidity for both ends of the body 801, one side of the second support plate 803 has an air inlet pipe ( The air discharge pipe 822, the hydraulic pipe 813, and the lower center support pipe 821 are provided on the second support plate 803 on which the 812, the hydraulic pipe 813, and the upper center support pipe 811 pass through. Is penetrated and supported.

In this case, it is preferable that the pair of first support plate 802 and the second support plate 803 are formed to have the same shape for both convenience of manufacturing and reduction of manufacturing cost. The installation number and installation position of the

support plates

802 and 803 may be variously changed and applied according to the size and shape of the body 801.

On the other hand, the valve unit (VU) is installed in the body 801 is operated by a remote control signal applied from the outside to open the air discharge pipe 822 by the hammer unit 100 of the high-pressure compressed air stored in the body 801 To the side.

Referring to the valve unit (VU) structure shown in Figure 12 and 14, the valve unit (VU) is fixed to the fixed block 840 and the fixed block 840 in the body 801 is installed to be retractable And a valve cylinder 850 and a drive cylinder 870 driving the valve block 850 to open and close the air discharge pipe 822 by hydraulic pressure.

The fixing block 840 is formed in a disk shape having a predetermined thickness, and is coupled to the upper end of the air discharge pipe 822 located inside the body 801 and maintained in a fixed state. In addition, an upper end of the air discharge pipe 822 is directly connected to the plurality of air discharge holes 841 formed in the fixed block 840. At this time, a seating jaw 842 having a stepped shape is formed at a lower side of the air discharge hole 841 so that the fixed block 840 coupled to the upper end of the air discharge tube 822 can be caught and supported without falling down. .

The upper portion of the lower central support tube 821 penetrates to the center of the fixing block 840 and is coupled to partially expose the upper side of the fixing block 840. On the upper side of the lower center support tube 821, the shaft diameter portion 821a, which is a portion of which the outer diameter of the lower center support tube 821 is reduced, is formed, and the shaft diameter portion 821a portion penetrates the center of the fixed block 840. It is formed to be exposed to the upper side of the fixed block 840. On the lower side of the fixed block 840 through which the shaft diameter portion 821a penetrates, a seating jaw 844 having a stepped shape is formed so that the fixing block 840 coupled to the shaft diameter portion 821a can be seated without descending. do.

The valve block 850 is formed in a disk shape corresponding to the shape of the fixed block 840, and the plurality of air discharge holes (8) are disposed on a position corresponding to the plurality of air discharge holes 841 formed in the fixed block 840. A plurality of valve bodies 860 for opening and closing the 841 are respectively coupled.

The lower end of the valve body 860 that opens and closes each air discharge hole 841 of the fixed block 840 may have an inverted triangular shape, and is firmly sealed by elastic deformation when contacted with the air discharge hole 841. It may be made of an elastic material to achieve the action, or may be made of the same metal material as the fixing block 840 to ensure the durability even in repeated opening and closing action.

Insertion groove having a shape corresponding to the shape of the shaft diameter portion 821a so that the shaft diameter portion 821a exposed through the fixing block 840 to the upper side is inserted into the center of the lower surface of the valve block 850 ( 851).

As a result, the valve block 850 is mounted on the shaft diameter portion 821a of the lower central support pipe 821 exposed to the upper side of the fixed block 840 through the insertion groove 851. It is provided in a state capable of moving up and down on the outer surface. At this time, the vertical movement width of the valve block 850 has a stroke corresponding to the width corresponding to the depth of the insertion groove (851).

In addition, the fixed block 840 is provided with one or more guide pins 843 in the form of penetrating the valve block 850. The guide pin 843 guides the linear movement of the valve block 850 stably without moving from side to side when the valve block 850 moves up and down.

A driving cylinder 870 for driving the valve block 850 to reciprocate up and down with respect to the fixed block 840 is coupled to the center of the upper surface of the valve block 850.

The drive cylinder 870 is provided with a piston rod having a piston for reciprocating along the inside, and the interior of the drive cylinder 870 is divided into two deformable sealed spaces partitioned through the piston. At this time, when the hydraulic pressure flows into any one side of the two sealed spaces, the hydraulic pressure flows out to the other side.

The piston rod 872 of the drive cylinder 870 extends through the center of the valve block 850 so that the lower end is lowered to the inside of the shaft portion 821a of the lower center support pipe 821. The lower end of the piston rod 872 is coupled to the center of the fixing plate 845 fixed to the inner circumferential surface of the shaft diameter portion 821a of the lower central support tube 821 exposed through the fixing block 840.

Two

ports

873 and 874 are formed in the driving cylinder 870 to allow the hydraulic pressure to flow into and out of the two inner sealed spaces defined by the piston. In addition, two of the plurality of hydraulic pipes 813 crossing the inside of the body 801 are connected to each of the

ports

873 and 874 through hydraulic hoses (not shown). In this case, the remaining hydraulic pipes 813 which are not connected to the hydraulic hose pass through the air tank 800 and are located on the lower side of the rotary drive unit 200, the first fixing unit 300, and the second fixing unit 500. Oil pressure).

The hydraulic power pack 920 located at the top of the pin pile 10 has a solenoid valve for selectively injecting hydraulic pressure into each

port

873 and 874 of the driving cylinder 870 according to a remote control signal applied from the outside. H) is provided. According to the driving of the solenoid valve, the hydraulic pressure is supplied to one of the two hydraulic pipes 813 connected by the driving cylinder 870 and the hydraulic hose, and the hydraulic pressure is returned to the other. As such, when the hydraulic pressure flows into one port of the driving cylinder 870 through the solenoid valve, the hydraulic pressure flows out of the other port, so that the piston rod 872 is external to the driving cylinder 870 according to the input / output direction of the hydraulic pressure. Can be withdrawn or drawn into.

FIG. 14 illustrates a state in which the piston rod 872 is moved to the inside of the drive cylinder 870 by hydraulic pressure so that the valve block 850 including the drive cylinder 870 is completely lowered downward. In this case, the valve body 860 of the valve block 850 completely blocks the air discharge hole 841 of the fixed block 840 so that the compressed air stored in the air tank 800 is transferred to the outside through the air discharge pipe 822. It cannot be discharged, and thus, compressed air is not supplied to the hammer unit 100 at the bottom of the drilling apparatus 1000.

Meanwhile, in FIG. 15, the hydraulic direction of the driving cylinder 870 is changed so that the piston rod 872 is moved outward of the driving cylinder 870 so that the valve block 850 including the driving cylinder 870 is completely upward. It is showing the state of being raised. That is, as the hydraulic pressure flows into the upper side port 873 of the drive cylinder 870, the downward extraction of the piston rod 872 is made, and at this time, the fixing plate 845 is fixed in the lower center support pipe 821 Simultaneously with the withdrawal of the piston rod 872, the valve block 850 including the drive cylinder 870 is moved upwardly opposite to the withdrawal direction to separate the valve body 860 from the air discharge hole 841. Discharge of compressed air through the 822 is made. Since the compressed air discharged in this way can be supplied directly to the hammer unit 100 located at the lowermost end through a plurality of rods connected to the inside of the drilling apparatus 1000, smooth submarine ground drilling work through the hammer unit 100 can be made possible. have.

In this case, the operation of the solenoid valve installed in the hydraulic power pack 920 may be performed through the wireless remote controller. That is, the operator operates the solenoid valve through the wireless remote controller outside the punching device 1000 to change the direction of the hydraulic pressure flowing into and out of the driving cylinder 870, thereby moving the air tank 800 through the shanghai dong of the valve block 850. Can be controlled to discharge the compressed air.

In addition, an inspection window 804 may be detachably installed on one side of the outer surface of the body 801 so as to be able to see the inside of the air tank 800. This inspection window 804 allows the operator to easily grasp the internal situation of the air tank (800). In this case, the inspection window 804 is preferably installed on the outer surface of the body 801 located adjacent to the valve unit (VU). In this case, when the operator connects the driving cylinder 870 and the hydraulic pipe 813 to the hydraulic hose (not shown) from the outside of the air tank 800, after removing the inspection window 804 from the body 801 Easy to enter the interior through the secured space can be easily connected to the hydraulic hose, it is possible to easily perform maintenance and replacement of the valve unit (VU).

In addition, a portion of the upper connection bracket 805 located outside the body 801 may be provided with a pressure gauge (not shown) capable of measuring the pressure inside the air tank 800. In this case, the pressure gauge may be installed to extend through the center of the upper connection bracket 805 to the upper center support pipe 811 located inside the body 801. The pressure gauge detects the air pressure inside the upper center support pipe 811 to measure the air pressure formed in the air tank 800, and the measured air pressure may be displayed on the display window of the wireless remote controller which is a remote control means. Therefore, it is possible for the operator to check the internal pressure of the air tank 800 in real time through a wireless remote controller at a remote location, and if an abnormality occurs in the internal pressure of the air tank 800, it is possible to immediately enter maintenance work.

Referring to the remote control process of the air tank 800 through the wireless remote control in detail, first, as shown in Figure 14, before the start of the drilling work on the seabed ground, the valve block 850 in the air tank 800 The air discharge hole 841 is completely closed by the valve body 860 downward and the compressed air stored in the air tank 800 is not supplied to the hammer unit 100.

In this state, the operator of the outside (for example, an external barge) for drilling seabed ground open signal of the air tank 800 to the solenoid valve (not shown) provided in the hydraulic power pack 920 portion via a wireless remote control 15, the hydraulic pressure flows into the upper port of the driving cylinder 870, and the piston rod 872 is drawn out to the lower part of the driving cylinder 870, and the extracted piston rod 872 is lowered. By pushing the fixing plate 845 fixed to the central support pipe 821 part, the valve block 850 including the driving cylinder 870 is moved upward by the repulsive force to block the air discharge hole 841. Sieve 860 is separated. In addition, the compressed air stored in the air tank 800 due to the separation of the valve body 860 escapes to the air discharge hole 841 and is supplied to the hammer unit 100 through the air discharge pipe 822 to provide a hammer. Smooth drilling of the seabed ground through the unit 100 can be made.

When all the drilling work on the subsea ground is completed, the operator again applies a signal to the solenoid valve through the wireless remote control to reverse the direction of the hydraulic pressure flowing into the drive cylinder 870, the valve through the reverse process described above The block 850 is lowered again to close the air discharge hole 841 through the valve body 860 so that the air tank 800 is again maintained in the compressed air storage mode.

In this way, the operator can easily operate the valve unit (VU) inside the air tank 800 through a wireless remote control operation from the outside to easily discharge and block the high-pressure compressed air stored in the air tank 800. I can operate it. In addition, even if the length of the air supply line extending from the external air compressor 910 to the upper end of the drilling device due to the integration of the pin pile and the drilling device as described above, the high-pressure air supplied from the air compressor 910 When the drilling operation is stored in the tank 800 and the drilling operation is started, the compressed air can be effectively supplied to the hammer unit 100 by opening the valve through the remote control, so that the hammer unit 100 exerts a sufficient punching performance. Efficiency can be increased, and accordingly, drilling of the seabed can be performed smoothly.

On the other hand, the air tank 800 is installed inside the pin pile 10 to solve the driving problem of the hammer unit 100, but another problem that makes it difficult to install the crushed discharge path. In general, the crushed matter is discharged to the outside through the connecting rod 610, the auxiliary discharge pipe 211, the connecting rod 310 and the rod pipe 430 passing through the center of each unit. However, in the case of the drilling device in which the installation of the air tank 800 is essential, it is not preferable to install the crushed material discharge path passing through the air tank 800. In order to allow the air tank 800 to supply sufficient pressure to the hammer unit 100, only essential elements such as hydraulic supply pipes and hydraulic return pipes should be installed in the air tank 800 at a minimum. When the discharge path for discharging bulky crushed material penetrates the inside of the air tank 800, the air storage space is reduced by that amount, which negatively affects the original purpose of installing the air tank 800. Therefore, instead of the crushed material discharge path, the trash storage tank 700 is installed inside the pin pile 10.

A method of drilling the seabed ground using the jacket construction punching device 1000 of the marine facility according to an embodiment of the present invention will be described with reference to FIGS. 16 and 17.

First, using a crane not shown in the drawings, the jacket 20 is seated and fixed on the seabed. In addition, the drilling device 100 in which the hammer unit 100, the rotation driving unit 200, the first fixing unit 300, the rods 400, and the second fixing unit 500 are sequentially connected into the pin pile 10 ( 1000) to assemble the pin pile integral fabric mill.

At this time, the stabilizer 600 is further connected between the hammer unit 100 and the rotation driving unit 200, and the crushed matter storage unit 700 between the first fixing unit 300 and the lowermost rod 400. You can connect additionally. In addition, after the air tank 800 is further connected to the upper end of the second fixing unit 500, the air compressor 910 and the hydraulic power pack 920 may be connected to the upper end of the air tank 800. In addition, the rods 400 having respective lengths set in accordance with the length of the pin pile 10 may be provided to be connected between the crushed matter storage unit 700 and the second fixing unit 500.

Then, using the crane, the pin pile 10 integral drilling apparatus 1000 is inserted into the jacket pile 21 of the jacket 20 seated on the seabed. Next, in a state where the hammer unit 100 is disposed in the pin pile 10 so as to be partially drawn out through the lower portion of the pin pile 10, the first and second fixing

units

300 and 500 by the hydraulic power pack 920 are provided. ) To secure the pin file 10.

Then, the rotary drive unit 200 is operated by the hydraulic power pack 920 to rotate the hammer unit 100, and at the same time, the air compressor 910 hits the hammer unit 100 to perforate the seabed ground. do. The hammer unit 100 penetrates into the drilling hole 1 as the seabed ground is drilled, and the pin pile 10 can also penetrate into the drilling hole 1 together with the hammer unit 100. When the pin pile 10 is inserted into the drilling hole 1 to a set depth, the first and second fixing

units

300 and 500 are contracted and then pinned the drilling device 1000 as shown in FIG. 17. Separate from the file (10). Then, the grouting material is filled in the drilling hole 1, the pin pile 10 and the jacket pile 21. Repeating these processes, the jacket 20 can be constructed to be fixed on the seabed.

As described above, according to the present embodiment, since the pin pile 10 is integrally assembled on the barge together with the drilling apparatus 1000 and inserted into the jacket pile 21, simultaneously with the drilling by the drilling apparatus 1000. Since the pin pile 10 may penetrate together into the hole, the pearl layer may be prevented from flowing into the hole.

Further, according to the present embodiment, the operator additionally fastens the rod 400 to the drilling apparatus 1000 in a narrow workbench on the jacket pile 21 to extend the length of the drilling apparatus according to the depth of the drilling hole. Since it is not necessary, safety accidents can be prevented, drilling time can be shortened, and weather changes such as typhoons can be coped with quickly. In addition, according to the present embodiment, since the additional fastening operation of the rod 400 is not necessary, the drilling apparatus 1000 may be driven and controlled by a remote controller, and thus, the drilling apparatus 1000 may be operated in a barge next to the jacket 20. can do.

Although one embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments set forth herein, and those skilled in the art who understand the spirit of the present invention may add components within the same scope. Other embodiments may be easily proposed by changing, deleting, adding, and the like, but this will also fall within the spirit of the present invention.

Claims

Pin file;

A hammer unit installed in the pin pile and receiving high pressure air from an external air compressor to drill seabed ground;

A fixing unit fixed to the inner wall of the pin pile to fix the pin pile;

An air tank storing high pressure air supplied from the air compressor and supplying high pressure air to the hammer unit by a signal applied from the outside; Including;

The air tank,

A body;

A plurality of air inlet pipes installed through one side of the body and into which high pressure air supplied from the air compressor is introduced;

A plurality of air discharge pipes installed through the other side of the body and through which high pressure air stored in the body is discharged;

A valve unit installed at an end of the air discharge pipe located inside the body and opening / closing the discharge of the high pressure air to the air discharge pipe by a signal applied from the outside;

Perforation apparatus for construction of the jacket of the marine installation, characterized in that it comprises a.
The method of claim 1, wherein the valve unit,

A fixed block fixedly installed at an end of the air discharge pipe and having a plurality of air discharge holes connected to the air discharge pipe;

A valve block installed reciprocally with respect to the fixed block and having a plurality of valve bodies for opening and closing the air discharge hole;

A driving cylinder installed in the valve block, the piston driving the internal piston rod by a signal applied from the outside to drive the valve block to reciprocate to open and close the air discharge hole through the valve body;

Perforation apparatus for construction of the jacket of the marine installation, characterized in that it comprises a.
The method of claim 2,

A central support tube installed through the central portion of the fixed block;

A fixed plate fixed to an inner side of the central support pipe and having an end portion of the piston rod coupled thereto;

Perforation apparatus for construction of the jacket of the marine installation, further comprising a.
According to claim 3, The end of the central support pipe is exposed to the outside of the fixed block, the center of the valve block corresponding to the end of the central support pipe so that the exposed end of the central support pipe can be inserted Jacketed drilling device for marine equipment, characterized in that the insertion groove having a formed.
According to claim 2, The fixed block is installed in the form of penetrating through the valve block, the drilling device for the construction of the jacket of the marine installation, characterized in that the guide pin is installed to guide the reciprocating movement of the valve block.
The method of claim 1, wherein the body is provided with a plurality of support plates formed with a plurality of through-holes for supporting the air inlet pipe and the air discharge pipe and a plurality of hydraulic pipes installed across the body. Drilling device for jacket construction of offshore facilities.
The method of claim 6, wherein the support plate,

A first support plate disposed in the middle portion of the body;

And a second support plate disposed at both ends of the body.

And the air inlet pipe and the air discharge pipe are supported through the second support plate, and the hydraulic pipe is supported through the first support plate and the second support plate.
The method of claim 6, wherein a bracket is coupled to each end of the air inlet pipe and the air discharge pipe exposed to the outside of both ends of the body and the end of the hydraulic pipe, the bracket is coupled to the other bracket adjacent to the coupling A drilling device for construction of a jacket of a marine facility, characterized in that a positioning pin for positioning is installed.
As a drilling device for drilling seabed ground,

Pin file;

A hammer unit disposed in the pin pile to be partially drawn out through the bottom of the pin pile, the hammer unit being operated to strike the seabed by receiving high pressure air from an external air compressor;

A rotation driving unit disposed in the pin pile and connected to an upper end of the hammer unit to receive hydraulic pressure from an external hydraulic power pack to rotate the hammer unit about an up and down axis;

A plurality of fixing units disposed in the pin piles to fix the pin piles by receiving hydraulic pressure from the hydraulic power pack and expanding the compressed pins against the inner wall of the pin piles from a contracted state;

A debris storage unit disposed in the pin pile and storing debris generated by driving the hammer unit;

An air tank disposed in the pin pile and storing high pressure air supplied from the air compressor and supplying high pressure air to the hammer unit; And

Rods having a predetermined length so as to organically connect the hammer unit, the rotation driving unit, the fixed unit, the crushed material storage unit, and the air tank to reach a puncture depth;

Perforation apparatus for construction of the jacket of the marine installation, characterized in that it comprises a.
The method of claim 9,

The shredded material storage unit,

Debris storage tanks;

Upper and lower connection rods mounted on upper and lower ends of the crushed matter storage tank and connected to each other by auxiliary connectors;

A debris discharge pipe disposed in the debris storage tank and receiving debris discharged through the debris discharge passages of the hammer unit, the rotary drive unit, and the fixed unit from the lower opening and discharged through the upper opening;

A crushed separation net spaced upwardly from a lower end of the crushed product storage tank and installed in the crushed product storage tank to separate water in the crushed material and discharge it to the lower side; And

A water discharge network installed along a lower circumference of the crushed matter storage tank and discharging the separated water through the crushed matter separation network to the outside;

Perforation apparatus for construction of the jacket of the marine installation, characterized in that it comprises a.
The method of claim 10,

The drilling device for the construction of the jacket of the marine installation, characterized in that the volume of the crushed material storage tank is 1.3-1.7 times the drilling volume.
As a construction method which drills a seabed ground using the fabric mill fabric for jacket construction of the offshore installation of any one of Claims 9-11,

Assembling a pin pile integral fabric mill by inputting a mill mill which sequentially connects the hammer unit, the rotary drive unit, the plurality of fixed units, the crushed material storage unit, the air tank, and the rod into the pin pile;

Inserting the pin pile integrated fabric mill into the jacket file of the jacket seated on the seabed;

Fixing the pin pile by expanding the plurality of fixing units by the hydraulic power pack while the hammer unit is disposed in the pin pile to be partially drawn out through the lower portion of the pin pile;

Operating the rotary drive unit by the hydraulic power pack to rotate the hammer unit, and at the same time, striking the hammer unit by the air compressor to drill seabed ground; And

When the pin pile is inserted into the drill hole at a set depth, separating the fabric mill from the pin pile by contracting the plurality of fixing units by the hydraulic power pack;

Drilling method for the construction of the jacket of the marine installation comprising a.