KR102532491B1 - Construction device of anchor block for settling an anchor block when boring underwater bottom - Google Patents

Abstract

In an anchor block installation device, which is formed of a heavy body including an upper surface and a lower surface and installs an anchor block for mooring a floating structure on water by settling the anchor body while excavating an underwater bottom, an anchor block installation device for installing an anchor block by settling the anchor block while excavating an underwater bottom according to the present invention comprises: an anchor block forming an excavation through hole that penetrates from the upper surface to the lower surface and an excavation hole in which the circumference of the lower surface protrudes more than the central part of the lower surface and is an empty space between the lower surface and the bottom when the anchor body settles on an underwater bottom; an excavation bit rotating 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 through the excavation through hole; a power source connected to the other end of the excavation rotation shaft to generate rotational power; and a sludge discharge pipe for carrying sludge generated in the process of excavating the underwater bottom from the excavation hole with the excavation bit to the outside. Accordingly, since an anchor block can be installed at the same time as excavating an underwater bottom, there is efficiency in reducing costs and shortening time when installing an anchor block.

Description

Anchor block installation device that subsides and installs an anchor block while excavating the underwater bottom {Construction device of anchor block for settling an anchor block when boring underwater bottom}

The present invention relates to an anchor block installation device that sinks and installs an anchor block while excavating an underwater bottom, and specifically, includes a drilling through-hole penetrating from the upper surface to the lower surface and a drilling hole in which the circumference of the lower surface protrudes from the central portion of the lower surface. It relates to an anchor block installation device for submerging and installing an anchor block by excavating the bottom of the water with an excavation bit by passing an excavation rotational shaft on which an excavation bit is formed through an excavation through hole.

Floating mooring facilities refer to various structures such as floating piers, barges, floating houses, etc. constructed on the surface of a river or sea. It consists of a pontoon, a floating body that supports the building by generating buoyancy in the form of a box made of steel or concrete, a connecting bridge connecting the pontoon to the land, and a mooring chain anchoring the pontoon. Such a pontoon is fixed to a plurality of fixed piles installed vertically in the submerged ground through a connecting rope, or is composed of a mooring tank by connecting a cable or the like to an anchor disposed on the bottom of the water.

It is common for anchors to be made of steel or concrete blocks and installed according to external forces such as impact force of a ship, tidal force or wave force. In particular, concrete blocks are often used in clay soil or sandy soil having a large external force. It can support floating mooring facilities through horizontal resistance such as bottom and side adhesion, difference between passive earth pressure and active earth pressure, and vertical resistance such as underwater weight and underwater soil cover weight.

In general, in order to construct an anchor in a buried type having a large bearing capacity underwater, the seabed is excavated, the anchor is placed, and then the anchor is installed by performing cover soil.

Korean Patent Registration No. 10-1878918 is a mooring anchor block using water pressure and a method for 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 (Nitto). When the fabricated mooring anchor block sinks from underwater to the submerged ground, the water jet is used to apply pressure to the underwater ground where the mooring anchor block will be located so that the submerged ground is hollowed, thereby increasing the anchor's underwater ground fixing power. It relates to a mooring anchor block using hydraulic pressure and a method of burying the block.

However, the registered patent has a disadvantage in that when the underwater ground is hard, the water jet alone cannot excavate the underwater ground, and the sludge generated during the excavation process is flowed into the water, causing environmental pollution.

In addition, when working in a place made of mud (nitto), there are many cases where a separate manpower is directly put in around the anchor to inject air until the anchor block is completely submerged, which also causes cost and safety problems.

Republic of Korea Patent Registration No. 10-1878918 (2018.07.10)

In order to solve the above problem, the present invention provides an anchor block including a drilling hole in which a drilling through-hole penetrating from the upper surface to the lower surface and a circumference of the lower surface protrudes from the center of the lower surface, and a drilling rotation shaft having a drilling bit formed thereon. It relates to an anchor block installation device that sinks and installs an anchor block by excavating the underwater bottom with an excavation bit.

An anchor block formed of a weight body including upper and lower surfaces according to an embodiment of the present invention and mooring a floating structure on the water has an excavation through-hole passing from the upper surface to the lower surface, and the circumference of the lower surface protrudes from the central part of the lower surface to be underwater. When seated on the bottom, an excavation hole, which is an empty space between the lower surface and the underwater bottom, may be included.

In addition, the drilling hole of the anchor block may form a predetermined inclination angle from the circumference of the lower surface toward the central part of the lower surface.

In addition, the anchor block may include at least one or more auxiliary through-holes penetrating from the upper surface to the lower surface.

An anchor block installation device for submerging and installing an anchor block while excavating an underwater floor according to an embodiment of the present invention is formed of a weight body including an upper surface and a lower surface, and an excavation through-hole penetrating from the upper surface to the lower surface, and An anchor block that protrudes from the central part of the lower surface and forms an empty space between the lower surface and the bottom when seated on the bottom of the water; An excavation bit that rotates in the excavation hole of the anchor block to excavate the underwater bottom; An excavation rotary shaft in which an excavation bit is connected to one end and installed through an excavation through-hole; It may include a power source connected to the other end of the excavation rotary shaft to generate rotational power; and a sludge discharge pipe for discharging sludge generated in the process of excavating the bottom of the water in an excavation hole with an excavation bit to the outside.

In addition, the anchor block includes at least one auxiliary through-hole penetrating from the upper surface to the lower surface, and the sludge discharge pipe passes through the auxiliary through-hole so that one end is connected to the drilling hole of the anchor block and the other end is connected to the outside. there is.

In addition, the excavation bit is composed of a bit body connected to one end of the excavation rotation shaft and rotating together when the excavation rotation shaft rotates, and a plurality of bit heads protruding in the longitudinal direction of the excavation rotation shaft at regular intervals along the circumference of the bit body. can be done with

In addition, a sludge discharge pump may be included at the other end of the sludge discharge pipe in order to take out sludge generated in the process of excavating the underwater floor with an excavation bit.

In addition, so that outside air can flow into the sludge discharge pipe, one end may include an outside air inlet pipe that is communicated in the middle of the sludge discharge pipe and the other end is connected to the outside.

In addition, an outdoor air intake fan connected to the other end of the outdoor air intake pipe to introduce outdoor air may be included.

According to the configuration described above, the anchor block installation method in which the anchor block is submerged and installed while excavating the underwater floor according to the present invention can install the anchor block at the same time as excavating the underwater floor, thereby reducing cost and time when installing the anchor block. There is this shortening efficiency.

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

In addition, it is possible to carry out the sludge generated during excavation work separately without discharging it into the water, so there is an effect of preventing environmental pollution.

The effects obtainable in 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 1a is a perspective view of an anchor block including a drilling through-hole and a drilling hole.
Figure 1b is a perspective view of an anchor block including a drilling hole and a drilling hole having a predetermined inclination angle.
Figure 1c is a perspective view of an anchor block including a drilling through hole and a drilling hole and having circular upper and lower surfaces.
Figure 2a is a side view of the sludge discharge pipe installed in the anchor block installation device for installing the anchor block by sinking while excavating the bottom of the water.
Figure 2b is a side view in which the sludge discharge pipe and the outside air inlet pipe are installed in the anchor block installation device for submerging and installing the anchor block while excavating the bottom of the water.
Figure 2c is a side view of the sludge discharge pipe formed on the ground in the anchor block installation device for submerging and installing the anchor block while excavating the bottom of the water.
Figure 2d is a side view of the sludge discharge pipe on the ground and the outside air inlet pipe formed in the water in the anchor block installation device for submerging and installing the anchor block while excavating the bottom of the water.
Figure 3a is a perspective view of an embodiment of an excavation rotary shaft and an excavation bit in an anchor block installation device for submerging and installing an anchor block while excavating an underwater bottom.
Figure 3b is a perspective view of another embodiment of the drilling rotary shaft and the drilling bit in the anchor block installation device for submerging and installing the anchor block while excavating the bottom of the water.
Figure 4 is a side view of the sludge discharge pipe and the outside air inlet pipe in the anchor block installation device that is installed by sinking the anchor block while excavating the bottom of the water.

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

The terms used in the present invention have been selected from general terms that are currently widely used as much as possible while considering the functions in the present invention, but these may vary depending on the intention of a person skilled in the art or precedent, the emergence of new technologies, and the like. In addition, in a specific case, there is also a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the invention. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, not simply the name of the term.

When it is said that a certain part "includes" a certain component throughout the specification, it means that it may further include other components without excluding other components unless otherwise stated. In addition, when a part is said to be "connected" to another part throughout the specification, this includes not only the case of being "directly connected" but also the case of being connected "with another component in between".

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

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings.

Referring to FIG. 1A, in the anchor block 10 formed of a weight body including an upper surface 10a and a lower surface 10b according to an embodiment and mooring a floating structure on the water, the anchor block 10 has an upper surface 10a ), the excavation through-hole 11 penetrating toward the lower surface 10b, and the circumferential portion of the lower surface 10b protrudes from the central portion of the lower surface 10b, and when seated on the underwater bottom, an empty space between the lower surface 10b and the underwater bottom A phosphorus drilling hole 13 may be included.

The anchor block 10 is connected to a floating structure and a cable as a weight to be fixed to the bottom of the water, and typically uses a concrete block and may include reinforcing bars therein as needed. This is when the anchor block 10 is fixed to the bottom of the water so that the floating structure on the water does not move due to the change in tension of the cable according to the change in the height of the water surface, the material or weight of the anchor block 10 etc. are not limited according to a specific embodiment.

In addition, the shape of the anchor block 10 is not limited according to a specific embodiment, but referring to FIG. 1c, the upper surface 10a and the lower surface 10b may be circular anchor blocks 10.

However, the anchor block 10 has an upper surface 10a and a lower surface 10b, and a drilling through hole 11 passing through them and a predetermined drilling hole 13 must be formed in the lower surface 10b.

Referring to Figure 2a, the diameter of the drilling through-hole 11 is formed to such an extent that the drilling rotation shaft 30 of the anchor block 10 installation device can pass through and rotate. The position of the through hole is generally formed vertically in the central portion of the upper surface 10a, and may be formed at a predetermined distance from the center or in a plurality according to the size of the anchor block 10 installation device. Alternatively, depending on the size of the drilling bit 20 of the anchor block 10 installation device, the drilling bit 20 may be formed to a size sufficient to pass through the drilling through-hole 11.

The drilling hole 13 is a space in which the drilling 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 drilling hole 13 are the size and height of the anchor block 10, the size and type of the anchor block 10 installation device, the size and shape of the drilling bit 20, the material of the underwater soil, the underwater bottom Depending on the rate of excavation and the degree of sludge generation, etc. In particular, referring to FIG. 1B, when the submerged ground is clay soil or sandy soil, the drilling hole 13 may form a predetermined inclination angle from the circumference of the lower surface 10b toward the central portion 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 negative pressure is formed in the excavation hole 13 while soil or sand in the excavation portion is removed when the underwater bottom is excavated.

Also, referring to FIGS. 1A, 1B, 1C, or 2A, at least one auxiliary through hole 12 penetrating from the upper surface 10a to the lower surface 10b may be included. The auxiliary through-hole 12 is a through-hole for introducing necessary materials into the drilling hole 13 as the underwater bottom is excavated, and is generally formed smaller than the diameter of the drilling through-hole 11. In addition, a plurality of auxiliary through holes 12 may be formed as needed.

Referring to Figure 2a, the anchor block 10 installation device according to an embodiment, the drilling through-hole 11 passing from the upper surface (10a) to the lower surface (10b) and the circumference of the lower surface (10b) is lower surface (10b) The anchor block 10 protrudes from the central part of the anchor block 10 and forms the drilling hole 13, which is an empty space between the lower surface 10b and the bottom when seated on the bottom of the water, rotates in the drilling hole 13 of the anchor block 10 The excavation bit 20 for excavating the bottom of the water, the excavation bit 20 is connected to one end and installed through the excavation through hole 11, the excavation rotary shaft 30 is connected to the other end of the excavation rotary shaft 30 to provide rotational power It may include a power source 40 that generates, and a sludge discharge pipe 50 for discharging sludge generated in the process of excavating the underwater bottom with the drilling bit 20 in the drilling hole 13 to the outside.

In particular, in the case of the main body 1 including the drilling bit 20, the drilling shaft 30, and the power source 40, it is generally not limited to a device capable of drilling a seabed or underwater bottom surface according to a specific embodiment. .

Referring to Figures 3a and 3b, the drilling bit 20 is connected to one end of the drilling rotary shaft 30, and the bit body 21 rotates together when the drilling rotary shaft 30 rotates and the circumference of the bit body 21 It may be formed of a plurality of bit heads 22 protruding in the longitudinal direction of the drilling rotary shaft 30 at regular intervals along the way. This is because the upper and lower surfaces 10a and 10b of the anchor block 10 are formed slightly wider than the size of the anchor block 10 installation device, so that a large area of the underwater bottom must be excavated with a minimum device, the bit body The diameter or length of (21) also has a feature that can be configured somewhat wider.

According to one embodiment, referring to FIG. 3A, a plurality of through-holes are formed in the bit body 21 configured in the form of a disc, where the drilling rotation shaft 30 and the bit head 22 are not installed, so that the drilling bit ( 20) When rotating, it can be easily formed to pass sludge.

Alternatively, according to another embodiment, referring to FIG. 3B , a plurality of bit heads 22 in each bit body 21 are formed by protruding at predetermined intervals in a direction perpendicular to the drilling rotation shaft 30. ) May be formed in the longitudinal direction of the excavation axis of rotation (30).

In addition, the structure and material of the bit to be mounted may vary according to the soil quality of the bottom of the water, which is not limited according to a specific embodiment.

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

Ultimately, referring to FIGS. 2B and 2C , a sludge discharge pipe 50 may be installed by connecting it to the outside in order to carry the sludge generated in the excavation hole 13 to the outside. In addition, the sludge discharge pipe 50 is inserted into the auxiliary through-hole 12 so that one end is connected to the drilling hole 13 of the anchor block 10 and the other end is connected to the outside. Alternatively, it may be simultaneously inserted into the drilling through-hole 11 together with the drilling shaft 30, and may be installed inside the drilling shaft 30. That is, the sludge introduced into the drilling bit 20, which is located in parallel to the drilling through-hole 11 or is installed inside the drilling shaft 30 and has a sludge inlet pipe, sludge discharge pipe 50 in the drilling shaft 30 can be transported to This may be configured differently depending on the size of the anchor block 10 and the size of the anchor block 10 installation device, and may be changed according to work efficiency when installing the anchor block 10.

Here, the exterior may be underwater, on land, or a ship that installs the anchor block 10. In particular, when the sludge is released into water as shown in FIG. 2b, it may cause environmental pollution, so as shown in FIG. can

Referring to Figures 1a, 1b and 1c, 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 bottom of the water with a crane or the like. corresponds to the part. When the lug 14 is not formed in the center of the drilling through hole 11 of the anchor block 10, one may be formed in the center of the upper surface 10a of the anchor block 10. Alternatively, two anchor blocks 10 may be formed at the facing corners of the upper surface 10a, and four anchor blocks may be formed at each corner. This is not limited to a specific embodiment, and can be modified according to the size and weight of the anchor block 10.

Also, referring to FIG. 4, the anchor block 10 installation device, which sinks and installs the anchor block 10 while excavating the underwater bottom according to an embodiment, occurs in the process of excavating the underwater floor with the drilling bit 20 A sludge discharge pump 51 may be included at the other end of the sludge discharge pipe 50 to transport the sludge to the outside. When the sludge generation rate exceeds the volume of the excavation hole 13 due to the excavation bit 20 rotating at high speed, and it is not easy to discharge the sludge, there is a problem. Therefore, the sludge overflows through the sludge discharge pipe 50 and may be discharged to the ground, but a pump may be installed at the other end of the sludge discharge pipe 50 to take out the sludge, thereby facilitating work efficiency and equipment protection. This can be carried out at the same time as the excavation, or can be carried out at intervals of time when sludge is generated to an appropriate level. The sludge carried out to the ground is collected in a separate space, and the water is separated through a purification process, so that sewage other than seawater can be treated. The sludge discharge pump 51 may use a water pump or a compressor, which is not limited according to a specific embodiment.

Alternatively, the sludge discharge pipe 50 may include an outside air inlet pipe 60 having one end communicated in the middle of the sludge discharge pipe 50 and the other end connected to the outside so that outside air may flow into the sludge discharge pipe 50 . Referring to FIGS. 2B, 2C, and 2D, the outside air inlet pipe 60 may supply outside air from underwater or outside air from a ship or the ground.

In addition, referring to FIG. 4, the outside air inlet pipe and the outside air inlet pipe 60 and the other end of the sludge discharge pipe 50 are formed in a straight line form, and from one end of the sludge discharge pipe 50 to the outside air inlet pipe 60 ) and the part that is in communication with it, but make the diameter of the pipe of the communicating couple somewhat smaller. 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 according to the increased pressure as the outside air passes through the place where the diameter is narrowed.

Here, the exterior may be a ground or a ship for installing the anchor block 10. This is not limited according to a particular embodiment in the case of a space into which outside air can flow.

In addition, an outside air inlet fan 61 connected to the other end of the outside air inlet pipe 60 may be included to generate such outside air. When blowing strong wind through the outside air inlet pipe 60 with the outside air inlet fan 61, if the pressure of the inlet and the communication part and the speed are constant according to Bernoulli's equation, the pressure of the communication part is lowered and the sludge rises more quickly There are effects that can be done.

In addition, upon completion of the excavation operation, the excavation bit 20 and the excavation 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 may be completed by filling the excavation hole 13, the excavation through hole 11, and the auxiliary through hole 12 through grouting in which cement paste is pressed.

The anchor block installation device described above and installed by sinking the anchor block while excavating the underwater bottom shown in the drawings is only one embodiment for carrying out the present invention, and is interpreted as limiting the technical idea of the present invention. Shouldn't be. Improved and changed embodiments without departing from the gist of the present invention will fall within the protection scope of the present invention as long as it is obvious to those skilled in the art to which the present invention belongs.

1: body
10: anchor block
11: excavation through hole
12: auxiliary through hole
13: drilling hole
14: lug
20: drilling bit
21: beat body
22: bit head
30: excavation axis of rotation
40: power source
50: sludge discharge pipe
51: sludge discharge pump
60: outside air inlet pipe
61: outdoor air intake fan

Claims (9)

In the anchor block formed of a weight body including an upper surface and a lower surface and mooring a floating structure on the water,
An excavation through-hole through which an excavation rotary shaft is inserted through from the upper surface toward the lower surface;
When the circumference of the lower surface protrudes from the central portion of the lower surface and is seated on the underwater bottom, the drilling bit connected to one end of the drilling rotation shaft rotates between the lower surface and the underwater bottom to include a drilling hole, which is an empty space for excavating the underwater floor. do,
In the drilling through-hole, the cross-sectional area of the portion through which the drilling shaft passes is smaller than the cross-sectional area formed by rotating the drilling bit in the drilling hole,
An anchor block, characterized in that the cross-sectional area formed by rotation of the drilling bit is larger than the cross-sectional area of the portion through which the drilling rotation shaft passes in the drilling through-hole.
The method of claim 1,
The drilling hole of the anchor block is an anchor block, characterized in that to form a predetermined inclination angle from the circumferential portion of the lower surface toward the central portion of the lower surface.
According to claim 1 or claim 2,
The anchor block comprises at least one auxiliary through-hole penetrating from the upper surface to the lower surface.
In the anchor block formed of a weight body including an upper surface and a lower surface and mooring a floating structure on the water, an excavation through hole passing from the upper surface toward the lower surface, and the circumference of the lower surface protrudes from the central portion of the lower surface to the bottom of the water An anchor block that forms an empty space between the lower surface and the underwater bottom when seated;
an excavation bit rotating in the excavation hole of the anchor block to excavate the underwater bottom;
An excavation rotary shaft connected to one end of the excavation bit and installed through the excavation through hole;
A power source connected to the other end of the excavation rotation shaft to generate rotational power; And
A sludge discharge pipe for discharging sludge generated in the process of excavating the underwater floor with the drilling bit in the drilling hole to the outside;
In the drilling through-hole, the cross-sectional area of the portion through which the drilling shaft passes is smaller than the cross-sectional area formed by rotating the drilling bit in the drilling hole,
The cross-sectional area formed by the rotation of the drilling bit is larger than the cross-sectional area of the part through which the drilling rotation shaft passes in the drilling through-hole, anchor block installation device for submerging and installing the anchor block while excavating the underwater bottom.
The method of claim 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 drilling hole of the anchor block and the other end is connected to the outside Anchor block installation device for submerging and installing an anchor block while excavating the underwater bottom .
The method of claim 4,
The drilling bit,
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 for submerging and installing an anchor block while excavating an underwater floor, characterized in that it consists of a plurality of bit heads protruding in the longitudinal direction of the excavation rotating shaft at regular intervals along the circumference of the bit body.
The method of claim 4,
In order to carry out the sludge generated in the process of excavating the underwater floor with the excavation bit, a sludge discharge pump is included at the other end of the sludge discharge pipe. At the same time as excavating the underwater floor, the anchor block is submerged and installed Anchor block installation device.
The method of claim 4,
To allow outside air to flow into the sludge discharge pipe, one end is in communication with the middle of the sludge discharge pipe and the other end is excavated at the bottom of the water, characterized in that it comprises an outside air inlet pipe connected to the outside. Installing by sinking the anchor block An anchor block installation device that sinks and installs anchor blocks while excavating the underwater bottom.
The method of claim 8,
Anchor block installation device for installing the anchor block by sinking the anchor block at the same time as excavating the bottom of the water, characterized in that it comprises an outside air inlet fan connected to the other end of the outside air inlet pipe to introduce outside air.

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