KR102625223B1 - Method for installing large concrete block - Google Patents

Abstract

The present invention ensures that the load is evenly distributed to each block wire rope without partial load bias even when the number of block wire ropes (i.e. the number of wire rope passages) coupled to one large concrete block increases. This relates to a method of stably and easily installing large concrete blocks, which involves installing a connecting wire rope to a block wire rope installed in the wire rope passage of a large concrete block to form a linear member, and then using the linear member. This relates to a method of lifting and mounting large concrete blocks and separating members on board at all times.

Description

{METHOD FOR INSTALLING LARGE CONCRETE BLOCK}

The present invention relates to a method for stably and easily installing large concrete blocks.

Large concrete blocks are widely used in various fields such as port construction and pipeline construction.

A large concrete block usually refers to a concrete structure, and hereinafter, a large concrete block for port construction will be described as an example of a large concrete block. However, the scope of the present invention refers to all concrete structures lifted by cranes, and is not limited thereto.

The present inventor has proposed Republic of Korea Patent No. 10-1220995, “Large Concrete Block Installation Method” (registered on January 4, 2013).

The prior art is to manufacture a large concrete block with a plurality of U-shaped wire rope passages, install block wire ropes in the wire rope passages of the large concrete block, and use both ends of the block wire ropes to create a large concrete block. Methods for lifting and mounting blocks are described.

The prior art can significantly increase the load of a large concrete block that can be lifted in that the wire rope for the block cannot be separated from the large concrete block during the lifting and mounting operation.

However, as the load of a large concrete block increases, the load on the wire rope for each block increases. Therefore, in order to lift a larger concrete block, a wire rope passage formed in one large concrete block and blocks installed thereon are used. It is necessary to distribute the load on each block wire rope by increasing the number of wire ropes.

At this time, in order for the load to be evenly distributed to each block wire rope connected to the crane, the length of the block wire rope must be accurately designed in consideration of the length of the crane side lifting part connected to it. If the length of the block wire rope is not designed accurately, the load is not properly applied to one or more block wire ropes, and the load is applied only to the remaining block wire ropes, resulting in a problem of partial load imbalance.

In particular, when the number of block wire ropes (i.e., the number of wire rope penetration passages) connected to one large concrete block is more than 3 (i.e., when a total of 6 or more parts are connected to the crane side lifting part), partial Load imbalance problems cause serious delays in crane lifting.

Republic of Korea Patent No. 10-1220995 “Large Concrete Block Installation Method” (registered on January 4, 2013)

The present invention was developed to solve the problems of the prior art as described above, and even when the number of block wire ropes (i.e., the number of wire rope penetration passages) connected to one large concrete block increases, partial load bias occurs. We would like to propose a method of installing large concrete blocks in which the load can be equally distributed to the wire ropes for each block.

In order to solve the above problem, the present invention includes a large concrete block manufacturing step of manufacturing a large concrete block with a plurality of U-shaped wire rope passages formed; After manufacturing the large concrete block, a block wire rope installation step of installing a block wire rope at each wire rope passage of the large concrete block; A connecting wire rope is installed outside the large concrete block to connect one end of the block wire rope and the other end of the other block wire rope, so that a plurality of the block wire ropes and the connecting wire rope are connected. A step of installing connecting wire ropes to form linear members formed in a row; A crane lifts and places the large concrete block using both ends of the ship member and the middle portion of each connecting wire rope constituting the ship member, and the load is applied to the block wire rope and the connecting wire rope. A lifting and placing step in which the shape of the block wire rope and the connecting wire rope are deformed as they move along the wire rope passage of the large concrete block when lifting the large concrete block in order to distribute it evenly; A ship member separation step of separating the ship member from the large concrete block after lifting and placing the large concrete block; It includes a pair of stoppers spaced apart from each other in the connecting wire rope, and the middle portion of the connecting wire rope used by the crane for lifting in the lifting and mounting step is a portion between the pair of stoppers. In the step of separating the block wire rope, one end of the connecting wire rope is disconnected from the block wire rope and the other end is connected to the block wire rope. It is characterized in that it is lifted by a crane and the connecting wire rope and the block wire rope connected thereto are lifted together.

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In the above, before the lifting and mounting step, it further includes a foundation ground creation step of creating a foundation ground on the sea floor for mounting the large concrete block, and in the lifting and mounting step, the large concrete block is placed on the foundation ground. It is desirable to be mounted.

As described above, the present invention allows the load to be equalized on each block wire rope without partial load bias even when the number of block wire ropes (i.e., the number of wire rope passages) coupled to one large concrete block increases. Provides a method of installing large concrete blocks that can be easily distributed.

Therefore, the present invention can stably and easily install larger concrete blocks.

1 is a perspective view of a large concrete block used in one embodiment of the present invention;
Figure 2 is a cross-sectional conceptual diagram expressing the expanded cross-sectional state of the large concrete block of Figure 1;
Figure 3 is a conceptual diagram of a state in which block wire ropes are installed on the large concrete block of Figure 2;
Figure 4 is a conceptual diagram of a state in which a connecting wire rope is installed on the block wire rope of Figure 3;
Figures 5 and 6 are conceptual diagrams of the state of lifting and placing a large concrete block after Figure 4;
Figures 7 and 8 are conceptual diagrams of the state of separating the linear member from the large concrete block after Figure 6;
Figure 9 is a plan view of the wire rope for the block of Figure 3;
Figure 10 is a plan view of another type of block wire rope;
Figure 11 is an enlarged conceptual diagram of the main part of the connecting wire rope of Figure 4;
Figure 12 is a view corresponding to Figure 7 of a large-scale concrete installation method according to another embodiment of the present invention.

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 that are not related to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Throughout the specification, when a part is said to “include” a certain element, this means that it may further include other elements rather than excluding other elements, unless specifically stated to the contrary.

Figure 1 is a perspective view of a large concrete block used in an embodiment of the present invention, and Figure 2 is a cross-sectional conceptual diagram expressing the expanded cross-sectional state of the large concrete block of Figure 1.

Figure 3 is a conceptual diagram of a state in which a block wire rope is installed on the large concrete block of Figure 2, and Figure 4 is a conceptual diagram of a state in which a connecting wire rope is installed on the block wire rope of Figure 3, and Figures 5 and 6 is a conceptual diagram of the state of lifting and placing a large concrete block after Figure 4, and Figures 7 and 8 are conceptual diagrams of the state of separating the linear member from the large concrete block after Figure 6.

(1) Large concrete block manufacturing steps

First, a large concrete block 110 as shown in Figure 1 is manufactured.

Figure 1 is a perspective view of a large concrete block 110, and Figure 2 is a conceptually expanded cross-sectional view of the large concrete block 110 to facilitate understanding of the structure of the wire rope passage 111 in Figure 1.

A plurality of U-shaped wire rope passages 111 are formed in the large concrete block 110.

Since the technology described in Republic of Korea Patent No. 10-1220995, which is a prior art, can be applied to the U-shaped wire rope passage 111, detailed description is omitted below.

In order to form the wire rope penetration passage 111, a wire rope penetration pipe made of synthetic resin pipe may be fixed in advance in a U-shape inside the formwork, and then the concrete body may be formed.

In addition, as a result, the central portion of the wire rope passage 111 is formed inside the concrete body, and both ends of the wire rope passage 111 are formed on the upper surface of the concrete body toward the top.

(2) Block wire rope installation step

After manufacturing the large concrete block 110, block wire ropes 121 are installed in each wire rope passage 111 of the large concrete block 110, as shown in FIG. 3.

In the case of this embodiment, three wire rope passages 111 are formed in the large concrete block 110, so three block wire ropes 121 are required.

The specific method of installing each block wire rope 121 is that one end of the block wire rope 121 passes through the wire rope passage 111, and one end of the block wire rope 121 passes through the wire rope passage 111. It protrudes upward from one end of the block wire rope 121, and the other end of the block wire rope 121 protrudes upward from the other end of the wire rope passage 111.

In the process up to this point, the technology described in Republic of Korea Patent No. 10-1220995, which is a prior art, can be applied as is.

The block wire rope 121 used in this embodiment has a closed curve shape without separate rings being formed at both ends as shown in FIG. 9.

However, depending on the embodiment, the block wire rope 121 may be provided with rings, etc. at both ends as shown in FIG. 10.
The block wire rope 121 installed in this way can freely move along the wire rope passage 111.

(3) Step of installing wire rope for connection

After the block wire rope 121 is installed, the connecting wire rope 122 is installed outside the large concrete block 110 as shown in FIG. 4.

The connecting wire rope 122 connects one end of the wire rope 121 for one block and the other end of the wire rope 121 for another block.

Accordingly, one linear member 120 formed in a row can be formed by a plurality of block wire ropes 121 and connecting wire ropes 122 disposed between the block wire ropes 121.

In this embodiment, one linear member 120 is formed by three block wire ropes 121 and two connecting wire ropes 122.

Therefore, block wire ropes 121 are always located at both ends of the linear member 120.

Of course, depending on the embodiment, two linear members 120 may be formed for one large concrete block 110.

As shown in detail in FIG. 11, the connecting wire rope 122 is provided with hook-type rings 122a at both ends, and a pair of stoppers 122b are provided at the middle portion to be spaced apart from each other.

The end of the block wire rope 121 can be hooked and connected by the hook-type ring 122a, or the connection can be disconnected.

The stopper 122b is fixed to the connecting wire rope 122 and limits the range of movement of the connecting wire rope 122 with respect to the connecting ring 131 of the crane-side lifting unit 130, which will be described later.
Since the block wire rope 121 can move freely along the wire rope passage 111, the linear member can freely move along the wire rope passage 111.

(4) Lifting and mounting stage

After the connecting wire rope 122 is installed, as shown in FIGS. 5 and 6, the crane uses both ends of the ship member 120 and the middle part of the connecting wire rope 122 constituting the ship member 120 to build a large Lift and place the concrete block (110).

That is, after the crane side lifting part 130 of the crane is connected to both ends of the ship member 120 and the middle part of the connecting wire rope 122 constituting the ship member 120, the crane is connected to the large concrete block 110. ) is lifted and placed.

The crane-side lifting unit 130 is provided with a plurality of connecting rings 131 and is connected to the ship member 120 by the plurality of connecting rings 131.

The shape of the crane side lifting part 130 and the shape of the connecting ring 131 can be proposed in many different structures, and the drawing of this embodiment is only an example.

Additionally, in some cases, the connecting wire rope 122 may already be connected to the crane-side lifting unit 130 before being connected to the block wire rope 121.

Here, both ends of the linear member 120 refer to either block wire rope 121 located on one side of the linear member 121, since block wire ropes 121 are disposed at both ends of the linear member 120, respectively. ) and the other end of another block wire rope 121 located on the other side of the linear member 121.

In addition, the middle portion of the connecting wire rope 122 is preferably a portion between the pair of stoppers 122b in the connecting wire rope 122.

A pair of wire ropes 121 for blocks located at both ends of the linear member 120 and each connection wire rope 122 with connection rings 131 coupled to the middle portion of each connection wire rope 122. When the wire rope 122 is moved upward, each connection wire rope 122 is connected to a pair of block wire ropes 121 and each connection wire rope 122 so that the load is evenly distributed. It moves freely with respect to (131).

That is, by moving the crane-side lifting unit 130 upward, the pair of block wire ropes 121 and each connecting wire rope 122 are transformed into an appropriate shape for the large concrete block 110. (As the line member moves along the wire rope passage, the shape of the line member relative to the large concrete block is deformed.) The load applied to the pair of block wire ropes 121 and each connection wire rope 122. Ensure that it is distributed evenly.

That is, in the prior art, the process of appropriately designing and installing the length of the block wire rope so that an equal load is applied to the block wire rope becomes unnecessary.

Therefore, the present invention prevents partial load bias when lifting the large concrete block 110, and allows the larger concrete block 110 to be lifted and mounted stably and easily.

Although FIG. 6 is illustrated on the assumption that the large concrete block 110 is mounted underwater, the large concrete block 110 may also be mounted on land.

(5) Line member separation step

After lifting and mounting the large concrete block 110, the linear member 120 is separated from the large concrete block 110 as shown in FIGS. 7 and 8.

It is preferable that the linear member 120, that is, the block wire rope 121 and the connecting wire rope 122, be separated from the large concrete block 110 in order to be reused.

The separation method is explained in detail.

The connection of the block wire rope 121 to the connection ring 131 is maintained.

With respect to one connection wire rope 122, one end is disconnected from the block wire rope 121 and the other end remains connected to the block wire rope 121.

In some cases, both ends of the other connection wire rope 122 may be disconnected from the block wire rope 121.

After the disconnection operation is completed, in this state, when the crane moves the crane-side lifting part 130 upward, the block wire rope 121 and the connection wire rope 122 connected to the crane-side lifting part 130 are moved to the upper part. It is lifted, and at this time, the block wire rope 121 connected to the connecting wire rope 122 is lifted together.

Through this process, all block wire ropes 121 and all connection wire ropes 122 can be separated from the large concrete block 110.

In this process, the stopper 122b of the connecting wire rope 122 prevents the connecting wire rope 122 from being separated from the connecting ring 131 of the crane side lifting unit 130.

Meanwhile, before the lifting and mounting step, a basic ground preparation step of creating a basic ground on the sea floor for mounting the large concrete block 110 may be further included.

That is, before mounting the large concrete block 110 on the seafloor, a basic ground preparation step may be performed in which the basic ground is previously created on the seafloor for mounting the large concrete block 110.

The basic ground preparation stage refers to dropping basic riprap stones on the sea floor and leveling the foundation for leveling, etc.

Therefore, in the lifting and mounting stage, the large concrete block 110 is placed on the foundation ground of the sea floor where leveling, etc. has been completed.

Figure 12 is a diagram corresponding to Figure 7 of a large-scale concrete installation method according to another embodiment of the present invention.

As shown, a large concrete block 110 with four wire rope passages 111 formed thereon may be installed.

The description of the present invention described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. For example, each component described as unitary may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

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

110: Large concrete block 111: Wire rope passage
120: linear member
121: Wire rope for block
122: Wire rope for connection
122a: Hook-type ring 122b: Stopper
130: Crane side lifting part 131: Connection link

Claims (3)

delete A large concrete block manufacturing step of manufacturing a large concrete block with a plurality of U-shaped wire rope passages formed;
After manufacturing the large concrete block, a block wire rope installation step of installing a block wire rope at each wire rope passage of the large concrete block;
A connecting wire rope is installed outside the large concrete block to connect one end of the block wire rope and the other end of the other block wire rope, so that a plurality of the block wire ropes and the connecting wire rope are connected. A step of installing connecting wire ropes to form linear members formed in a row;
A crane lifts and places the large concrete block using both ends of the ship member and the middle portion of each connecting wire rope constituting the ship member, and the load is applied to the block wire rope and the connecting wire rope. A lifting and placing step in which the shape of the block wire rope and the connecting wire rope are deformed as they move along the wire rope passage of the large concrete block when lifting the large concrete block in order to distribute it evenly;
A ship member separation step of separating the ship member from the large concrete block after lifting and placing the large concrete block;
Includes,
A pair of stoppers are provided on the connecting wire rope, spaced apart from each other,
In the lifting and mounting step, the middle part of the connecting wire rope used by the crane for lifting is the area between the pair of stoppers,
In the step of separating the block wire rope, one end of the connecting wire rope is disconnected from the block wire rope and the other end is connected to the block wire rope while being connected to the crane. A method of installing a large concrete block, characterized in that the connection wire rope and the block wire rope connected thereto are lifted together.
According to claim 2,
Before the lifting and mounting step, it further includes a basic ground preparation step of creating a basic ground on the sea floor for mounting the large concrete block,
A large concrete block installation method, characterized in that in the lifting and mounting step, the large concrete block is placed on the foundation ground.