WO2024106874A1

WO2024106874A1 - Anchor block to be settled and installed while underwater ground is excavated, and anchor block installation apparatus and method

Info

Publication number: WO2024106874A1
Application number: PCT/KR2023/018161
Authority: WO
Inventors: 김선태
Original assignee: 주식회사 블루오션테크
Priority date: 2022-11-14
Filing date: 2023-11-13
Publication date: 2024-05-23

Abstract

The present invention relates to an anchor block installation apparatus for settling and installing an anchor block while underwater ground is excavated, and to an anchor block installation apparatus and method for settling and installing the anchor block while underwater ground is excavated, the anchor block being formed as a weighted body that includes a top surface and a bottom surface and mooring a structure that floats on water, and the apparatus comprising: the anchor block having an excavation through-hole, which is penetrated from the top surface toward the bottom surface thereof, and an excavation hole that is an empty space formed, when being mounted to underwater ground, between the bottom surface thereof and the ground since the circumferential portion of the bottom surface projects farther than the central portion of the bottom surface; an excavation bit, which rotates in the excavation hole of the anchor block so as to excavate underwater ground; an excavation rotary shaft having one end to which the excavation bit is connected to pass through and be provided in the excavation through-hole; a power source, which is connected to the other end of the excavation rotary shaft so as to generate rotation power; and a sludge discharge pipe for discharging, to the outside, sludge formed when underwater ground is excavated by means of the excavation bit in the excavation hole.

Description

Anchor block installed by sinking the anchor block while excavating the underwater bottom, apparatus and method for installing the anchor block

The present invention claims the benefit of Korean Patent Application Nos. 10-2022-0151639 and 10-2022-0151640 filed with the Korea Intellectual Property Office on November 14, 2022, the entire contents of which are included in the present invention.

The present invention relates to an anchor block that is installed by sinking the anchor block while excavating the underwater bottom, and an installation device and method for installing the anchor block. Specifically, the excavated through hole penetrates from the upper surface to the lower surface, and the peripheral portion of the lower surface is the central portion of the lower surface. An anchor block installation device that sinks and installs an anchor block by excavating the underwater bottom with an excavation bit by passing the excavation penetration hole of the anchor block through an excavation rotation axis on which an excavation bit is formed, and an anchor block including an excavation hole formed to protrude further; It's about method.

Floating mooring facilities refer to various structures such as floating piers, barges, and floating houses that are constructed on the surface of a river or sea. It consists of a pontoon, a floating body in the form of a box made of steel or concrete that generates buoyancy and serves to support the building, a bridge connecting the land and the pontoon, and a mooring chain that anchors the pontoon. These pontoons are fixed to a plurality of fixed piles installed vertically on the underwater ground through connecting ropes, or are made up of groups that are moored by connecting cables to anchors placed on the underwater floor.

Anchors are generally made of steel or concrete blocks and installed according to external forces such as impact force of ships, tidal forces, or wave forces. In particular, concrete blocks have large external forces and are often used in cohesive or sandy soils. This can support floating mooring facilities through horizontal resistance such as bottom and side adhesion, difference between passive and active earth pressure, and vertical resistance such as underwater weight and weight of underwater soil cover.

In general, in order to construct a buried anchor with high bearing capacity underwater, the seafloor is excavated, the anchor is placed, and then the anchor is covered and installed.

Republic of Korea Patent No. 10-1878918 is a mooring anchor block using water pressure and a method of burying the block. It is a concrete block used when installing a floating pier, a fixed facility for anchoring a ship in a place where the underwater ground is made of mud. When the manufactured mooring anchor block sinks from underwater to the underwater ground, using a water jet, pressure is applied to the net of the underwater ground where the mooring anchor block will be located, causing the underwater ground to cave in, thereby increasing the anchoring power of the mooring anchor to the underwater ground. It relates to a mooring anchor block using water pressure and a method of burying the block.

However, the above registered patent has the disadvantage of not being able to excavate the underwater ground using only a water jet when the underwater ground is hard, and causing problems of environmental pollution by flowing sludge generated during the excavation process into the water.

In addition, when working in a place made of mud, additional manpower is often directly invested around the anchor to inject air until the anchor block sinks completely, which also causes cost and safety problems.

In order to solve the above problem, the present invention provides an anchor block including an excavation through hole that penetrates from the upper surface to the lower surface and an excavation hole in which the peripheral portion of the lower surface protrudes more than the central portion of the lower surface, and the excavation through hole of the anchor block is provided. It relates to an anchor block installation device and method for sinking and installing an anchor block by excavating the underwater bottom with an excavation bit through an excavation rotation axis formed by a bit.

The anchor block, which is formed of a heavy body including an upper surface and a lower surface according to an embodiment of the present invention and mooring a floating structure on water, has an excavated through hole penetrating from the upper surface toward the lower surface, and a peripheral portion of the lower surface protruding from the central portion of the lower surface so that it is underwater. When it settles on the bottom, it may include an empty space between the bottom and the underwater bottom.

Additionally, the excavation hole of the anchor block may form a predetermined inclination angle from the circumference of the lower surface toward the center of the lower surface.

Additionally, the anchor block may include at least one auxiliary through hole penetrating from the upper surface to the lower surface.

An anchor block installation device that sinks and installs an anchor block while excavating the underwater bottom according to an embodiment of the present invention is formed of a heavy body including an upper surface and a lower surface, an excavation through hole penetrating from the upper surface to the lower surface, and a lower surface of the anchor block. An anchor block whose peripheral portion protrudes from the central portion of the bottom surface to form an empty space between the bottom surface and the bottom when seated on the underwater bottom; An excavation bit that rotates in the excavation hole of the anchor block to excavate the underwater bottom; An excavation rotation shaft connected to one end of an excavation bit and installed through an excavation through hole; It may include a power source connected to the other end of the excavation rotation shaft to generate rotational power; and a sludge discharge pipe that carries out sludge generated in the process of excavating the underwater bottom in the excavation hole with an excavation bit to the outside.

In addition, the anchor block may include at least one auxiliary through hole penetrating from the upper surface to the lower surface, and the sludge discharge pipe may be characterized in that one end is connected to the excavation hole of the anchor block and the other end is connected to the outside through the auxiliary through hole. there is.

In addition, the excavation bit is characterized by being composed of a bit body that is connected to one end of the excavation rotation axis and rotates together when the excavation rotation axis rotates, and a plurality of bit heads that protrude in the longitudinal direction of the excavation rotation axis at regular intervals along the circumference of the bit body. You can do this.

Additionally, a sludge discharge pump may be included at the other end of the sludge discharge pipe to carry out sludge generated during the process of excavating the underwater bottom with an excavation bit to the outside.

In addition, so that outside air can be introduced into the sludge discharge pipe, an outside air inflow pipe may be included, one end of which is connected to the middle of the sludge discharge pipe, and the other end connected to the outside.

Additionally, it may include an outside air inflow fan connected to the other end of the outside air inlet pipe to introduce outside air.

In the anchor block installation method of sinking and installing the anchor block in the process of excavating the underwater bottom according to an embodiment of the present invention, it is formed of a heavy body including an upper surface and a lower surface and mooring a floating structure on water, from the upper surface to the lower surface. Preparing an anchor block including an excavation through hole penetrating through the lower surface and an excavation hole that is an empty space between the lower surface and the underwater bottom when the peripheral portion of the lower surface protrudes from the central portion of the lower surface and is seated on the underwater bottom; Installing an excavation rotation axis with an excavation bit formed at one end through the excavation through hole to excavate the underwater bottom in the excavation hole of the anchor block; It may include the step of installing a power source on the other end of the excavation rotation shaft to rotate the excavation rotation shaft and excavating the underwater bottom with an excavation bit.

In addition, the step of preparing the anchor block can be performed by sinking the anchor block during the process of excavating the underwater bottom, which is characterized by forming a predetermined inclination angle from the circumference of the lower surface of the anchor block toward the central part of the lower surface.

In addition, the step of preparing the anchor block can be installed by sinking the anchor block during the process of excavating the underwater bottom, which further includes at least one auxiliary through hole penetrating from the upper surface to the lower surface of the anchor block.

In addition, the anchor block can be installed by sinking during the process of excavating the underwater bottom, which further includes the step of seating the anchor block on the underwater bottom.

In addition, the step of fixing the anchor block to the underwater bottom after excavating the underwater bottom with an excavation bit may be further included.

In addition, in the step of installing the excavation rotation shaft through the excavation through hole, the step of installing a sludge discharge pipe with one end connected to the excavation hole of the anchor block and the other end connected to the outside may be further included.

In addition, in the step of excavating the underwater bottom with an excavation bit, the step of carrying out sludge generated during excavation to the outside through a sludge discharge pipe may be further included.

Additionally, in the step of installing the sludge discharge pipe, the step of installing a sludge discharge pump at the other end of the sludge discharge pipe may be further included.

In addition, in the step of installing the sludge discharge pipe, the step of installing an outside air inflow pipe with one end communicating in the middle of the sludge discharge pipe and the other end connected to the outside so that outside air can flow into the sludge discharge pipe may be further included.

Additionally, the step of installing the outside air inflow pipe may further include installing an outside air inflow fan at the other end of the outside air inflow pipe.

With the above configuration, the anchor block installation device and method for installing the anchor block by sinking it while excavating the underwater bottom according to the present invention can install the anchor block at the same time as excavating the underwater bottom, thereby reducing the cost when installing the anchor block. It is efficient and saves time.

In addition, since the anchor block can be installed at the same time as the underwater bottom is excavated, there is an advantage that the anchor block can easily adjust the sinking height of the underwater bottom.

In addition, sludge generated during excavation work can be taken out separately without being discharged into the water, which has the effect of preventing environmental pollution.

The effects that can be obtained from the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description below. will be.

Figure 1 is a perspective view of an anchor block including an excavation through hole and an excavation hole.

Figure 2 is a perspective view of an anchor block including an excavation through hole and an excavation hole having a predetermined inclination angle.

Figure 3 is a perspective view of an anchor block that includes an excavation through hole and an excavation hole and has circular upper and lower surfaces.

Figure 4 is a side view of the sludge discharge pipe installed in the anchor block installation device that installs the anchor block by sinking it while excavating the underwater bottom.

Figure 5 is a side view of the sludge discharge pipe and the outside air inflow pipe installed in the anchor block installation device that installs the anchor block by sinking it while excavating the underwater bottom.

Figure 6 is a side view of a sludge discharge pipe formed on the ground in an anchor block installation device that installs anchor blocks by sinking them while excavating the underwater bottom.

Figure 7 is a side view of the anchor block installation device that installs the anchor block by sinking it while excavating the underwater bottom, where the sludge discharge pipe is formed on the ground and the outdoor air inflow pipe is formed in the water.

Figure 8 is a perspective view of an embodiment of the excavation rotation axis and excavation bit in the anchor block installation device that installs the anchor block by sinking it while excavating the underwater bottom.

Figure 9 is a perspective view of another embodiment of the excavation rotation axis and excavation bit in the anchor block installation device that installs the anchor block by sinking it while excavating the underwater bottom.

Figure 10 is a side view of the sludge discharge pipe and the outside air inflow pipe in the anchor block installation device that installs the anchor block by sinking it while excavating the underwater bottom.

Figure 11 is a block diagram of an anchor block installation method in which the anchor block is installed by sinking it during the process of excavating the underwater bottom.

Figure 12 is a side view of the step of seating the anchor block on the underwater bottom.

Figure 13 is a side view of the steps of excavating the underwater bottom with a digging bit.

Figure 14 is a side view of the step of fixing the anchor block to the underwater bottom after excavating the underwater bottom with an excavation bit.

※ Explanation of symbols

1: Anchor block installation device

10: Anchor block

11: Excavation through hole

12: Auxiliary through hole

13: Digger

14: Rug

20: digging bit

21: bit body

22: bit head

30: Excavation rotation axis

40: power source

50: Sludge discharge pipe

51: Sludge discharge pump

60: External air inlet pipe

61: Outside air inflow fan

The terms used in this specification will be briefly explained, and the present invention will be described in detail.

The terms used in the present invention are general terms that are currently widely used as much as possible while considering the functions in the present invention, but this may vary depending on the intention or precedent of a person working in the art, the emergence of new technology, etc. In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the relevant invention. Therefore, the terms used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than simply the name of the term.

When it is said that a part "includes" a certain element throughout the specification, this means that, unless specifically stated to the contrary, it does not exclude other elements but may further include other elements. In addition, when a part is said to be “connected” to another part throughout the specification, this includes not only cases where it is “directly connected,” but also cases where it is connected “with another component in between.”

Below, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts unrelated to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Hereinafter, various embodiments of the present invention are described with reference to the attached drawings.

Figure 1 is a perspective view of an anchor block 10 including an excavation through hole 11 and an excavation hole 13, and Figure 2 is a perspective view of an anchor block 10 including an excavation through hole 11 and an excavation hole 13 having a predetermined inclination angle. This is a perspective view of the anchor block 10, and Figure 3 is a perspective view of the anchor block 10, which includes an excavated through hole 11 and an excavated hole 13 and has circular upper and lower surfaces.

Referring to FIG. 1, in the anchor block 10 which is formed of a heavy body including an upper surface 10a and a lower surface 10b according to an embodiment and mooring a water floating structure, the anchor block 10 has an upper surface 10a. ), an excavated through hole 11 penetrating toward the lower surface (10b), and the circumference of the lower surface (10b) protrudes more than the central part of the lower surface (10b), so that when seated on the underwater bottom, there is an empty space between the lower surface (10b) and the underwater bottom. It may include a phosphorus borehole (13).

The anchor block 10 is a weight that is connected to an aquatic floating structure by a cable and is used to fix it to the underwater bottom. Concrete blocks are usually used and may include reinforcing bars therein as needed. This means that when the anchor block 10 is fixed to the bottom of the water so that the floating structure does not move due to changes in the tension of the cable due to changes in the height of the water surface, the material or weight of the anchor block 10 etc. are not limited to a specific embodiment.

In addition, the shape of the anchor block 10 is not limited to a specific embodiment. Referring to FIG. 3, the anchor block 10 may have a circular upper surface 10a and a lower surface 10b.

Figure 4 is a side view of the sludge discharge pipe 50 installed in the anchor block installation device 1, which is installed by sinking the anchor block 10 while excavating the underwater bottom, and Figure 5 is a side view of the anchor block 10 being installed while excavating the underwater bottom. It is a side view of the sludge discharge pipe 50 and the outside air inflow pipe 60 installed in the anchor block installation device 1 installed by sinking, and Figure 6 shows the anchor block installation installed by sinking the anchor block 10 while excavating the underwater bottom. Figure 7 is a side view of the sludge discharge pipe 50 formed on the ground in the device 1, and Figure 7 is a sludge discharge pipe 50 in the anchor block installation device 1, which is installed by sinking the anchor block 10 while excavating the underwater bottom. Here, the outside air inflow pipe 60 is a side view formed underwater.

Meanwhile, the anchor block 10 has an upper surface 10a and a lower surface 10b, and an excavation through hole 11 passing through it can be formed, and a predetermined excavation hole 13 can be formed on the lower surface 10b.

Referring to FIG. 4, the diameter of the drilling through hole 11 is large enough to allow the drilling rotation axis 30 of the anchor block installation device to pass through and rotate. The positions of the excavation through holes 11 are generally formed vertically in the central portion of the upper surface 10a, and depending on the scale of the anchor block installation device, they may be formed at a predetermined distance from the center or may be formed in plural numbers. Alternatively, depending on the size of the excavation bit 20 of the anchor block installation device, the excavation bit 20 may be formed to be large enough to pass through the excavation through hole 11.

The excavation hole 13 is a space where the excavation bit 20 can excavate the underwater bottom, and is formed between the anchor block 10 and the underwater bottom when the anchor block 10 is seated on the underwater bottom. The shape and size of the excavation hole 13 include the size and height of the anchor block 10, the size and type of the anchor block installation device, the size and shape of the excavation bit 20, the material of the underwater soil, and the method of excavating the underwater bottom. It varies depending on the speed and the degree of sludge generation. In particular, referring to Figure 2, when the ground of the underwater bottom is viscous soil or sandy soil, the excavation hole 13 may form a predetermined inclination angle from the circumference of the lower surface 10b toward the center of the lower surface 10b. This may make it easier to install on the underwater bottom due to the load of the anchor block 10 as a negative pressure is formed in the excavation hole 13 as the soil or sand in the excavated area is removed when excavating the underwater bottom.

Also, referring to FIGS. 1, 2, 3, and 4, it may include at least one auxiliary through hole 12 penetrating from the upper surface 10a to the lower surface 10b. The auxiliary through hole 12 is a through hole for introducing or removing necessary materials into the excavation hole 13 as the underwater bottom is excavated, and is generally formed to be smaller than the diameter of the excavation through hole 11. Additionally, a plurality of auxiliary through holes 12 may be formed as needed.

Referring to FIGS. 1, 2, and 3, the lug 14 is formed on the upper surface 10a of the anchor block 10 and is connected to a chain to lift the anchor block 10 to the underwater bottom using a crane, etc. It corresponds to the part. When the excavation through hole 11 is not formed in the center of the anchor block 10, one lug 14 may be formed in the center of the upper surface 10a of the anchor block 10. Alternatively, two may be formed at opposite corners of the upper surface 10a of the anchor block 10 and four may be formed at each corner. This is not limited to a specific embodiment, and may be modified depending on the size and weight of the anchor block 10.

Referring to FIG. 4, the anchor block installation device according to one embodiment includes an excavation through hole 11 penetrating from the upper surface 10a toward the lower surface 10b, and the peripheral portion of the lower surface 10b being formed at the center of the lower surface 10b. The anchor block (10) is more protruding and forms an empty space, an excavation hole (13), between the lower surface (10b) and the bottom when it settles on the underwater bottom. The anchor block (10) rotates in the excavation hole (13) of the anchor block (10) to form an underwater bottom. An excavation bit 20 for excavating, an excavation rotation shaft 30 installed to penetrate the excavation through hole 11, at one end of which the excavation bit 20 is connected, and connected to the other end of the excavation rotation shaft 30 to generate rotational power. It may include a power source 40, and a sludge discharge pipe 50 that carries out the sludge generated in the process of excavating the underwater bottom in the excavation hole 13 with the excavation bit 20.

In particular, in the case of the anchor block installation device 1 including the drilling bit 20, the drilling rotation axis 30, and the power source 40, it is generally a device capable of drilling the seafloor or underwater bottom according to a specific embodiment. Not limited.

Figure 8 is a perspective view of an embodiment of the excavation rotation axis 30 and the excavation bit 20 in the anchor block installation device 1 that installs the anchor block 10 by sinking it while excavating the underwater bottom, and Figure 9 shows the underwater bottom. This is a perspective view of another embodiment of the excavation rotation axis 30 and the excavation bit 20 in the anchor block installation device 1 that installs the anchor block 10 by sinking it while excavating.

Referring to Figures 8 and 9, the excavation bit 20 is connected to one end of the excavation rotation shaft 30 and rotates together when the excavation rotation shaft 30 rotates, and the bit body 21 is connected to the circumference of the bit body 21. Accordingly, it may be formed of a plurality of bit heads 22 protruding in the longitudinal direction of the excavation rotation axis 30 at regular intervals. This is because the upper surface (10a) and lower surface (10b) of the anchor block (10) are formed somewhat wider than the scale of the anchor block installation device, so that when a large area of underwater bottom must be excavated with a minimum device, the bit body (21) It has the feature that its diameter or length can be configured to be somewhat wider.

According to one embodiment, referring to FIG. 8, a plurality of penetrating parts are formed in the bit body 21 composed of a disk shape in a portion where the excavation rotation axis 30 and the bit head 22 are not installed, thereby forming an excavation bit ( 20) Sludge can be easily passed through during rotation.

Or, according to another embodiment, referring to FIG. 9, a plurality of bit bodies 21 are formed to protrude at predetermined intervals in a direction perpendicular to the excavation rotation axis 30, and a plurality of bit heads 22 are attached to each bit body 21. ) may be formed in the longitudinal direction of the excavation rotation axis 30.

Additionally, the structure and material of the bit mounted may vary depending on the soil quality of the underwater bottom, and this is not limited to a specific embodiment.

The excavation rotation shaft 30 is connected to the excavation bit 20 at one end and to the rotation power source 40 at the other end, so that the excavation bit 20 can be rotated using the rotational force of the power source 40. As the excavation bit 20 rotates on the underwater bottom within the excavation hole 13, the underwater bottom is excavated, and thus excavated soil, seawater, and other foreign substances (sludge) are generated. In this case, the excavation hole 13 of the anchor block 10 is closed from the water outside the excavation hole 13, and the sludge in the excavation hole 13 interferes with the installation of the anchor block 10, thereby reducing the efficiency of the excavation work. This may deteriorate.

Ultimately, referring to FIGS. 5 and 6, the sludge discharge pipe 50 can be connected to the outside and installed to carry out the sludge generated in the excavation hole 13 to the outside. In addition, the sludge discharge pipe 50 may be inserted into the auxiliary through hole 12 so that one end is connected to the excavation hole 13 of the anchor block 10 and the other end is connected to the outside. Alternatively, it may be simultaneously inserted into the excavation through-hole 11 together with the excavation rotation shaft 30, or may be installed inside the excavation rotation shaft 30. That is, the sludge flowing into the excavation bit 20, which is located in parallel with the excavation through hole 11 or is installed inside the excavation rotation shaft 30 and has a sludge inflow pipe, is discharged into the sludge discharge pipe 50 within the excavation rotation shaft 30. It can be transferred to . This may be configured differently depending on the size of the anchor block 10 and the scale of the anchor block installation device, and may change depending on work efficiency when installing the anchor block 10.

Here, the outside may be underwater, on land, or a ship installing the anchor block 10. In particular, if the sludge is discharged into the water as shown in Figure 5, it may cause environmental pollution, so if necessary, the sludge can be transported to the ground or a ship as shown in Figure 6 and sewage other than seawater can be treated separately through a purification process. You can.

Figure 10 is a side view of the sludge discharge pipe 50 and the outside air inflow pipe 60 in the anchor block installation device 1, which installs the anchor block 10 by sinking it while excavating the underwater bottom.

Also, referring to FIG. 10, the anchor block installation device that installs the anchor block 10 by sinking it while excavating the underwater bottom according to an embodiment removes the sludge generated in the process of excavating the underwater bottom with the excavation bit 20. In order to discharge the sludge to the outside, a sludge discharge pump 51 may be included at the other end of the sludge discharge pipe 50. If the sludge generation rate exceeds the volume of the excavation hole (13) due to the high-speed rotating excavation bit (20) and it is not easy to discharge the sludge, this may be linked to a decrease in the speed of the anchor block (10) installation work and equipment failure. there is a problem. Therefore, sludge may overflow through the sludge discharge pipe 50 and be discharged to the ground, but a pump can be installed at the other end of the sludge discharge pipe 50 to discharge the sludge to facilitate work efficiency and equipment protection. This allows the underwater bottom to be taken out at the same time as excavation, or if sludge has been generated to an appropriate degree, it can be taken out at intervals. Sludge brought to the ground can be collected in a separate space, separated from water through a purification process, and treated for waste other than seawater. The sludge discharge pump 51 may use a water pump or a compressor, and this is not limited to a specific embodiment.

Alternatively, so that outside air can be introduced into the sludge discharge pipe 50, an outside air inflow pipe 60 may be included, one end of which communicates in the middle of the sludge discharge pipe 50, and the other end connected to the outside. Referring to FIGS. 5, 6, and 7, the outdoor air inlet pipe 60 may supply outdoor air from underwater, or from an external source such as on a ship or on the ground.

Also, referring to FIG. 10, the part communicating with the outside air inflow pipe and the outside air inflow pipe 60 is formed in a straight line from the other end of the sludge discharge pipe 50, and the outside air inflow pipe 60 is formed from one end of the sludge discharge pipe 50. ) and the connected part is bent and connected, but the diameter of the connected pipes is made to be somewhat small. This can be formed according to the Venturi effect, in which the sludge generated in the space rises due to the pressure difference with the excavation hole 13 as the pressure increases as external air passes through the area where the diameter is narrowed.

Here, the outside may be the ground or a ship installing the anchor block 10. This is not limited to a particular embodiment if it is a space where outside air can be introduced.

Additionally, in order to generate such outside air, an outside air inflow fan 61 connected to the other end of the outside air inlet pipe 60 may be included. When strong wind is blown through the outside air inlet pipe (60) by the outside air inlet fan (61), if the pressure of the inlet and the part in communication with the speed are constant according to Bernoulli's equation, the pressure of the part in communication is lowered, causing the sludge to rise more quickly. There is an effect that can be achieved.

On the other hand, the anchor block installation method (S1), which installs the anchor block 10 by sinking it in the process of excavating the underwater bottom according to one embodiment, is formed of a heavy body including an upper and lower surface and mooring a floating structure on the water. , prepare an anchor block (10) including a through hole that penetrates from the upper surface to the lower surface and an excavation hole (13) that is an empty space between the lower surface and the underwater bottom when the peripheral part of the lower surface protrudes more than the central part of the lower surface and is seated on the underwater bottom. Step (S10), installing the excavation rotation shaft 30, which has an excavation bit 20 at one end, through the excavation through hole 11 to excavate the underwater bottom in the excavation hole 13 of the anchor block 10. (S20) and a step (S30) of mounting the power source 40 on the other end of the excavation rotation shaft 30 to rotate the excavation rotation shaft 30 to excavate the underwater bottom with the excavation bit 20.

Figure 11 is a block diagram of a method of installing the anchor block 10 by sinking the anchor block 10 during the process of excavating the underwater bottom.

The step of preparing the anchor block 10 (S10) is a step of preparing the anchor block 10 according to an embodiment as shown in FIGS. 1, 2, and 3. Anchor block 10, through excavation The characteristics of the hole 11, the excavation hole 13, and the auxiliary through hole 12 may be the same as those of the anchor block 10 according to one embodiment.

Additionally, the process of excavating the underwater bottom according to one embodiment may include a step (S11) of seating the anchor block 10 on the underwater bottom.

Figure 12 is a side view of the step of seating the anchor block 10 on the underwater bottom. Referring to Figure 12, the lug 14 portion of the anchor block 10 can be connected with a chain and placed on the underwater bottom through a crane. In particular, the anchor block 10 is seated on the underwater bottom with the portion with the excavation hole 13 facing down.

Referring to FIGS. 4 to 7, the step (S20) of installing the excavation rotation axis 30 through the excavation through hole 11 is to install the excavation rotation axis for excavation work after the anchor block 10 is seated on the underwater bottom. (30) can be installed through the excavated through hole (11).

Alternatively, when the areas of the upper surface (10a) and lower surface (10b) of the anchor block 10 are somewhat larger than the scale of the anchor block installation device 1, the excavation bit 20 connected to one end of the excavation rotation axis 30 It may also be larger than the diameter of the excavation rotation axis 30. In this case, the excavation bit 20, separated from the excavation rotation axis 30, is first placed on the underwater bottom where the anchor block 10 will be installed, and then the anchor block 10 is placed on the underwater bottom, and then the excavation rotation axis 30 and You can also connect.

In this process, a step (S21) of installing a sludge discharge pipe 50 connected at one end to the excavation hole 13 of the anchor block 10 and at the other end connected to the outside may be further included. The installation location and method of the sludge discharge pipe 50 are not particularly limited depending on the embodiment, and the order may be changed as described above.

Figure 13 is a side view of the step of excavating the underwater bottom with the excavation bit 20.

Referring to FIG. 13, the step (S30) of excavating the underwater bottom with the excavation bit 20 involves connecting a rotational power source 40 to the other end of the excavation rotation shaft 30 and excavating connected to one end using the rotational force of the power source 40. The underwater bottom can be excavated by rotating the bit (20). Through the excavation process, an excavation space is formed on the underwater bottom below the excavation hole 13, and the space can be buried in the underwater bottom due to the load of the anchor block 10. In this process, the length of the excavation rotation axis 30 can be adjusted to match the target installation height of the anchor block 10.

In addition, referring to FIG. 13, the step (S30) of excavating the underwater bottom with the excavation bit 20 may further include the step (S31) of carrying out the sludge generated during excavation to the outside through the sludge discharge pipe 50. . This allows the underwater bottom to be taken out at the same time as excavation, or if sludge has been generated to an appropriate degree, it can be taken out at intervals.

In addition, referring to FIG. 10, a step (S22) of installing a sludge discharge pump at the other end of the sludge discharge pipe 50 may be further included in order to discharge the sludge to the outside through the sludge discharge pipe 50. The sludge discharge pump 51 may include the contents described above.

Alternatively, referring to FIG. 13, in the step (S21) of installing the sludge discharge pipe 50, one end is connected to the middle of the sludge discharge pipe 50 and the other end is connected to the outside so that outside air can be introduced into the sludge discharge pipe 50. A step (S23) of installing the inlet pipe 60 may be further included. The outside air inlet pipe 60 may also include the content described above.

In addition, referring to Figure 7, in order to generate such outside air, the step of installing the outside air inlet pipe 60 (S23) to the step of installing the outside air inflow fan 61 connected to the other end of the outside air inlet pipe 60 (S24) ) may further be included. The outside air inlet fan 61 may also include the content described above.

Figure 14 is a side view of the step of fixing the anchor block 10 to the underwater bottom after excavating the underwater bottom with the excavation bit 20.

Referring to FIG. 14, a step (S40) of excavating the underwater bottom with the excavation bit 20 and then fixing the anchor block 10 to the underwater bottom may be further included. Upon completion of the excavation work, the excavation bit 20 and the excavation rotation shaft 30 are removed from the excavation hole 13 and the excavation through hole 11, and the sludge discharge pipe 50 is also removed. In addition, the installation of the anchor block 10 can be completed by filling the excavation hole 13, the excavation hole 11, and the auxiliary through hole 12 through grouting using cement paste.

The anchor block installation device described above and shown in the drawings, which installs the anchor block by sinking it while excavating the underwater bottom, is only one embodiment for carrying out the present invention, and is interpreted as limiting the technical idea of the present invention. You shouldn't. Embodiments that have been improved and changed without departing from the gist of the present invention will be said to fall within the scope of protection of the present invention as long as they are obvious to those skilled in the art to which the present invention pertains.

Claims

In the anchor block formed of a heavy body including an upper surface and a lower surface and mooring a floating structure on the water,

an excavated through hole penetrating from the upper surface toward the lower surface;

An anchor block wherein the peripheral portion of the lower surface protrudes more than the central portion of the lower surface and includes an excavation hole that is an empty space between the lower surface and the underwater bottom when seated on the underwater bottom.
According to paragraph 1,

An anchor block, characterized in that the excavation hole of the anchor block forms a predetermined inclination angle from the circumference of the lower surface toward the center of the lower surface.
According to claim 1 or 2,

The anchor block is characterized in that it includes at least one auxiliary through hole penetrating from the upper surface to the lower surface.
In the anchor block formed of a heavy body including an upper surface and a lower surface and mooring a floating structure on water, the anchor block includes an excavated through hole penetrating from the upper surface toward the lower surface, and a peripheral portion of the lower surface protruding from the central portion of the lower surface so that it is located on the underwater bottom. An anchor block that forms an empty space between the lower surface and the floor when seated;

An excavation bit that rotates in the excavation hole of the anchor block to excavate the underwater bottom;

An excavation rotation shaft connected to one end of the excavation bit and installed to penetrate the excavation through hole;

A power source connected to the other end of the excavation rotation shaft to generate rotational power; And

An anchor block installation device that sinks and installs an anchor block while excavating the underwater bottom, including a sludge discharge pipe that carries out the sludge generated in the excavation hole to the outside in the process of excavating the underwater bottom with the excavation bit.
According to clause 4,

The anchor block includes at least one auxiliary through hole penetrating from the upper surface to the lower surface,

The sludge discharge pipe penetrates the auxiliary through hole, one end is connected to the excavation hole of the anchor block, and the other end is connected to the outside. Anchor block installation device that installs the anchor block by sinking it while excavating the underwater bottom. .
According to clause 4,

The digging bit is,

A bit body connected to one end of the excavation rotation shaft and rotating together when the excavation rotation shaft rotates,

An anchor block installation device that excavates an underwater bottom and simultaneously sinks and installs an anchor block, characterized in that it consists of a plurality of bit heads protruding in the longitudinal direction of the excavation rotation axis at regular intervals along the circumference of the bit body.
According to clause 4,

Installing an anchor block by sinking it at the same time as excavating the underwater bottom, characterized in that it includes a sludge discharge pump at the other end of the sludge discharge pipe to carry out the sludge generated in the process of excavating the underwater bottom with the excavation bit to the outside. Anchor block installation device.
According to clause 4,

In order to allow outside air to flow into the sludge discharge pipe, an anchor block is installed by sinking and simultaneously excavating the underwater bottom, characterized in that it includes an outside air inflow pipe, one end of which is communicated in the middle of the sludge discharge pipe and the other end connected to the outside. An anchor block installation device that excavates the underwater floor and simultaneously sinks and installs the anchor block.
According to clause 8,

An anchor block installation device that excavates an underwater bottom and simultaneously sinks and installs an anchor block, comprising an outside air inflow fan connected to the other end of the outside air inlet pipe to introduce outside air.
In the anchor block installation method of installing the anchor block by sinking it during the process of excavating the underwater floor,

It is formed of a heavy body including an upper surface and a lower surface, and is used to moor a floating structure on water. The excavated through hole penetrates from the upper surface to the lower surface, and the peripheral part of the lower surface protrudes more than the central part of the lower surface, so that when seated on the underwater bottom, the lower surface and the lower surface are formed. Preparing an anchor block including an empty space between the underwater bottoms and an excavation hole;

Installing an excavation rotation axis with an excavation bit formed at one end through the excavation through hole to excavate the underwater bottom in the excavation hole of the anchor block; And

A method of installing an anchor block by sinking an anchor block in the process of excavating the underwater bottom, including the step of installing a power source on the other end of the excavation rotation shaft to rotate the excavation rotation shaft and excavating the underwater bottom with the excavation bit.
According to clause 10,

The step of preparing the anchor block is,

An anchor block installation method of installing an anchor block by sinking it in the process of excavating an underwater bottom, characterized in that forming a predetermined inclination angle from the circumference of the lower surface of the anchor block toward the center of the lower surface.
According to clause 10,

The step of preparing the anchor block is,

An anchor block installation method of installing an anchor block by sinking it in the process of excavating an underwater bottom, characterized in that the anchor block further includes at least one auxiliary through hole penetrating from the upper surface to the lower surface.
According to clause 10,

An anchor block installation method of installing the anchor block by sinking it during the process of excavating the underwater bottom, further comprising the step of seating the anchor block on the underwater bottom.
According to clause 10,

An anchor block installation method of sinking and installing an anchor block in the process of excavating an underwater bottom, further comprising the step of fixing the anchor block to the underwater bottom after excavating the underwater bottom with the excavation bit.
According to clause 10,

In the step of installing the excavation rotation axis through the excavation through hole,

An anchor block installation method of sinking and installing an anchor block in the process of excavating an underwater bottom, further comprising installing a sludge discharge pipe, one end of which is connected to the excavation hole of the anchor block and the other end connected to the outside.
According to clause 15,

In the step of excavating the underwater bottom with the excavation bit,

An anchor block installation method of sinking and installing an anchor block during the process of excavating an underwater bottom, further comprising the step of transporting sludge generated during excavation to the outside through the sludge discharge pipe.
According to clause 15,

In the step of installing the sludge discharge pipe,

An anchor block installation method of sinking and installing an anchor block during the process of excavating an underwater bottom, further comprising installing a sludge discharge pump at the other end of the sludge discharge pipe.
According to clause 15,

In the step of installing the sludge discharge pipe,

An anchor installed by sinking an anchor block in the process of excavating the underwater bottom, further comprising the step of installing an outdoor air inflow pipe, one end of which is connected to the outside of the sludge discharge pipe, so that outside air can flow into the sludge discharge pipe. How to install blocks.
According to clause 18,

In the step of installing the outside air inlet pipe,

An anchor block installation method of installing an anchor block by sinking it in the process of excavating an underwater bottom, further comprising installing an outside air inflow fan at the other end of the outside air inlet pipe.