KR20120113693A - Concrete block and manufacturing method therof - Google Patents

Abstract

PURPOSE: A large concrete block and a manufacturing method thereof are provided to lift large concrete blocks again by connecting a connection wire rope because problems like corrosion are not generated at all. CONSTITUTION: A large concrete block(100) comprises a large concrete block body(110) and a connection wire rope through-pipe(120). The large concrete block body is formed by concrete. The connection wire rope through-pipe is formed by a synthetic resin pipe and the middle of the connection wire rope through-hope is embedded on the concrete block body. Both ends of the connection wire rope through-pipe are upwardly arranged on the top of the large concrete block body. The middle of the connection wire rope through-pipe is formed into the shape of an arc downwardly recessed along a longitudinal direction.

Description

Large concrete block for crane lifting and its manufacturing method {CONCRETE BLOCK AND MANUFACTURING METHOD THEROF}

The present invention relates to a large concrete block and a method of manufacturing the same.

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

The large concrete block generally refers to a concrete structure, hereinafter will be described taking a large concrete block for port construction as an example of a large concrete block. However, the scope of the present invention refers to all concrete structures to be lifted by the crane, it is not limited thereto.

The large concrete block 10 shown in Figures 1 and 2 is provided with a lifting ring member 20 for lifting with a crane on the top.

Since the large concrete block 10 is stacked in the vertical direction, when the lifting ring member 20 protrudes upward, the large concrete block 10 interferes with the large concrete block placed in the upper portion.

Therefore, in order to solve this problem, a plurality of lifting ring member grooves 11 are formed on the upper surface of the large concrete block 10, and the upper portion of the lifting ring member 20 is inside the lifting ring member groove 11. Is located in.

Of course, the lifting ring member 20 is located inside the formwork before the large concrete block 10 is placed in advance, the lower portion of the lifting ring member 20 is embedded in the poured concrete is fixed to the large concrete block 10. . In addition, the lower portion of the lifting ring member 20 generally has a fixing structure for fixing to concrete.

Meanwhile, FIG. 3 is a large concrete block 10 in the form of a hollow block, the inside and the top of which are open.

The lifting ring member 20 may be manufactured in various ways such as rebar or wire rope.

Such a large concrete block has the following problems.

(1) The lifting ring member is used only for the lifting of the concrete block. However, the lifting ring member is discarded without being reused because the lifting ring member is fixed to the concrete block.

In particular, in the case of a large concrete block installed below the sea level, the lifting ring member has a problem that the expensive lifting ring member is discarded because the stainless steel wire rope is used.

(2) The concrete itself does not cause corrosion, but the lifting ring member made of metal causes corrosion, and if the lifting ring member is corroded, its volume expands. Can be. This problem is particularly problematic for large concrete blocks installed below sea level for offshore construction.

(3) As described above, in the case of a large concrete block having a structure that is stacked in the vertical direction, the lifting ring member grooves should be separately formed due to the lifting ring member, and in this case, forming the grooves for the lifting ring member may be performed. It is very difficult and also increases the air.

(4) If it is necessary to lift the large concrete block again after a long time after passing the large concrete block, there is a problem that the lifting ring member is corroded and cannot lift the large concrete block.

(5) If the lifting ring member is weakly fixed to the large concrete block, the lifting ring member is released from the large concrete block during the lifting of the large concrete block, which may cause a safety accident. In this case, of course, the large concrete blocks that were dropped and impacted would be impossible to use.

The present invention has been made to solve the problems of the prior art, a large concrete block, a large concrete block body made of concrete, and its central portion is embedded in the large concrete block body, both ends of the upper surface of the large concrete block body It is intended to solve the above problems at a time by being made of a connecting wire rope through tube made of a synthetic resin pipe disposed toward.

In order to solve the above problems, the present invention is a large concrete block for lifting the crane, a large concrete block body made of concrete; A synthetic resin pipe, the central portion is embedded in the inside of the large concrete block body, both ends of the connecting wire rope through pipe disposed on the upper surface of the large concrete block body toward the top; And a control unit.

In the above, it is preferable that the center portion of the connecting wire rope through tube is arranged to form an arc convex downward along the longitudinal direction.

In the above, it is preferable that the connecting wire rope through tube has a corrugated pipe shape.

In the above, through pipe plugs detachably coupled to both ends of the connecting wire rope through pipe may be provided.

In the above, further comprising a connection wire rope including a lifting ring is provided on each end, the connection wire rope to the inside of the connection wire rope through pipe to be freely movable along the connection wire rope through pipe. Arranged along, the pair of lifting hooks of the connection wire rope is preferably exposed from the connection wire rope through pipe, respectively.

According to another aspect of the present invention, in the method of manufacturing a large concrete block, after fixing the connecting wire rope through pipe made of a synthetic resin pipe in a U-shape inside the formwork for the large concrete block body in advance, the concrete is poured into the formwork. A large concrete block body made of concrete is formed, whereby a central portion of the connecting wire rope through tube is embedded in the large concrete block body, and both ends of the connecting wire rope through tube are placed on the upper surface of the large concrete block body. Characterized in that disposed toward.

The present invention as described above has the following effects.

(1) The present invention does not require a lifting ring member made of metal to manufacture a large concrete block, but only a connecting wire rope through tube made of a synthetic resin pipe. Therefore, many problems due to the lifting member are solved at once.

That is, the problem of corrosion of the lifting ring member and the resulting destruction of the large concrete block, the lifting ring groove for the lifting ring member, the problem of discarding the lifting ring member is solved in one step.

(2) Since the connection wire rope through tube of the present invention does not cause any problems such as corrosion, it can be re-lifted by connecting the connection wire rope at any time when re-lifting a large concrete block.

(3) In the case of the conventional lifting ring member, it is difficult to exert a strong fixing force on the large concrete block, which causes a problem that the lifting ring member is often separated from the large concrete block. On the contrary, in the present invention, since the connecting wire rope through tube forms a convex downward shape, that is, a U-shape, the entire concrete located on the upper part of the connecting wire rope through tube stably supports the connecting wire rope through tube. Therefore, there is no problem that the connecting wire rope is separated from the large concrete block during the lifting and mounting operation.

1 and 2 are a perspective view and a cross-sectional view of a large concrete block according to the prior art,
3 is a perspective view of a large concrete block according to the prior art,
4 and 5 are a perspective view and a cross-sectional view of a large concrete block according to the first embodiment of the present invention;
6 is a view for explaining a manufacturing method of a large concrete block of FIG.
7 and 8 are views for explaining the installation method of a large concrete block of FIG.
9 and 10 are a perspective view and a cross-sectional view of a large concrete block according to the first embodiment of the present invention;
11 is a perspective view of a large concrete block according to a third embodiment of the present invention;
12 is a perspective view of a large concrete block as a fourth embodiment according to the present invention;
FIG. 13 is a view for explaining a method for producing the large concrete block of FIG.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention in the drawings, portions not related to the description are omitted, and like reference numerals are given to similar portions throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

First, a large concrete block for lifting a crane, which is the first embodiment of the present invention, will be described with reference to FIGS. 4 and 5.

4 and 5 are a perspective view and a cross-sectional view of a large concrete block as a first embodiment according to the present invention.

The large concrete block 100 is composed of a large concrete block body 110 made of concrete and a connecting wire rope through pipe 120 made of a synthetic resin pipe.

As shown in FIG. 5, the connecting wire rope through tube 120 forms an arc having its center portion convex downward along its longitudinal direction while being embedded in the large concrete block body 110. That is, the connecting wire rope through tube 120 is disposed in a U shape.

In addition, both ends of the connecting wire rope through pipe 120 are disposed upward on the upper surface of the large concrete block body 110. In the present embodiment, both ends of the connecting wire rope through tube 120 is shown to be disposed toward the upper portion, but this is just one example, and is disposed obliquely upward toward the center of the large concrete block body 110. Could be

Since the connection wire rope through pipe 120 is a synthetic resin pipe, there is no danger of corrosion even when exposed to sea water for a long time.

Meanwhile, the connection wire rope through tube 120 is preferably in the form of a corrugated pipe. As one type of corrugated pipe, an ELP pipe for wire excretion may be mentioned. This is because the corrugated pipe is generally flexible, and therefore, when the connecting wire rope through pipe 120 is installed in the field, it is easy to bend the connecting wire rope through pipe 120 into a convex shape.

In addition, if the connection wire rope through-pipe 120 has a corrugated pipe shape, there is an advantage that a close coupling with the large concrete block body 110 is possible.

A manufacturing method for manufacturing such a large concrete block as shown in FIG. 4 will be described with reference to FIG. 6.

Figure 6 (a) is the form of the formwork before concrete pouring.

Formwork is installed according to the size and shape of the large concrete block body, and the formwork is provided with sepa bolts and separ nuts to withstand the lateral pressure of the concrete to be poured.

Such arrangement and dismantling of formwork and sepa bolts can be regarded as the same as the general production of large concrete blocks, and thus a detailed description thereof will be omitted.

Fix the connecting wire rope through tube 120 using a sepabol, etc. in the formwork.

At this time, the connecting wire rope through pipe 120 is fixed in a U-shape, the connecting wire rope through pipe 120 is formed in a U-shape in advance in the form of a tube or a flexible tube having a flexible shape in the U-shape in the field It may be.

In addition, since both ends of the connection wire through pipe 120 is open, it is necessary to seal both ends of the connection wire through pipe 120 with a tape or the like so that concrete does not enter the inside of the connection wire through pipe 120 when concrete is poured. desirable.

6B is a form of the formwork after concrete is poured.

When the concrete is poured into the formwork, the large concrete block body 110 is completed thereby, and the central portion of the connecting wire rope through tube 120 is embedded in the large concrete block body 110, and the connecting wire rope pipe Both ends of the clearance 120 is exposed from the upper surface of the large concrete block body 110.

Figure 6 (c) is a cross-sectional view of a large concrete block of the completed form.

When the concrete curing is completed in the state of FIG. When the cutting is removed in accordance with the height of the upper surface of the (110), the state of Fig. 6 (c). In Figure 6 (c) is not shown a hole formed due to the Sepha bolt and the like.

A method for installing a large concrete block as shown in FIG. 4 manufactured by FIG. 6 will be described with reference to FIGS. 7 and 8.

FIG. 7A illustrates a state in which the connection wire rope 130 is installed in the large concrete block 100, and FIG. 7B illustrates a state in which the connection wire rope 130 is installed.

In the present embodiment, the connection wire rope 130 is manufactured by a wire rope, and the lifting ring 131 is provided at both ends thereof.

One end of the connecting wire rope 130 passes through the connecting wire rope through tube 120 so that one end of the connecting wire rope 130 is exposed from one end of the connecting wire rope through pipe 120. The other end should be exposed from the other end of the connecting wire rope through pipe 120. That is, all of the pair of lifting hooks 131 should be exposed from the large concrete block 100.

At this time, the diameter of the connecting wire rope through-pipe 120 is advantageous, the diameter of the lifting ring 131 to the thickness of the connecting wire rope 130 is advantageously thick.

Therefore, the diameter of the lifting ring 131 of the connection wire rope 130 is to be slightly smaller than the diameter of the connection wire rope through-pipe 120.

In such a size relationship, it is not an easy task for the connection wire rope 130 to penetrate the connection wire rope through tube 120.

To this end, as shown in (a) of FIG. 7, the tow hook 132 having a preliminary diameter is connected to the lifting ring 131 formed at one end of the connecting wire rope 130, and the first tow wire 132 is connected to the connecting wire. To pass through the rope through-pipe (120).

Thereafter, the tugboat 132 is continually pulled so that the connection wire rope 130 is in the state of FIG. 7B and then the tugboat 132 is removed.

In the state of FIG. 7B, the large concrete block 100 is in a ready state for carrying out a lifting and mounting operation.

(C) is a perspective view of the state (b) of FIG.

As shown in the large concrete block 100, two connecting wire ropes 130, that is, four lifting rings 131 are provided.

FIG. 8A illustrates a state in which a large concrete block 100 is lifted using a connecting wire rope 130 that is a crane, specifically, a lifting hook 131, and FIG. 8B illustrates a crane. It is a state which mounts this large concrete block 100 to a specific position.

8 (c) shows that the connection state of the lifting ring 131 of the connection wire rope 130 is released after the mounting of the large concrete block 100 is completed, and in this state, FIG. When the crane lifts the connection wire rope 130 using another lifting ring 131 as shown in (d) of FIG. 8, the connection wire rope 130 is separated from the large concrete block 100.

Of course, the separated connection wire rope 130 may be reused for the lifting and mounting of other large concrete blocks.

8 (c) and 8 (d) are intended to show that the connection wire rope 130 can be separated from the large concrete block very conveniently, provided that the large concrete block is installed in water. That is, (c) and (d) of FIG. 8 show that the connecting wire rope 130 is separated from the large concrete block even when the diver performs a separation operation only for one lifting ring.

If the concrete block installation work is carried out on land, the operator simply disconnects both lifting hooks (131) from the crane and pulls the connecting wire rope 130 in either direction, the connecting wire rope 130 is a large concrete block ( Easily separated from).

9 and 10 show that the present invention is applied to a large concrete block in the form of a hollow block as a second embodiment of the present invention.

9 is a perspective view of a large concrete block according to a second embodiment of the present invention, and FIG. 10 is a cross-sectional view of FIG. 9.

11 is a perspective view of a large concrete block as a third embodiment according to the present invention.

In this embodiment, since the connecting wire rope 130 is applied to the tensile load in the lifting ring 131 at both ends, it takes about twice as much stress as the lifting ring member to which the tensile load is applied only in one direction as in the prior art. Can be. Therefore, the thickness of the connection wire rope 130 has to be thick, accordingly, the diameter of the connection wire rope through-pipe 120 should also be expanded.

On the contrary, as shown in FIG. 11, if two connection wire rope through pipes 120 are originally installed at the site where the one connection wire rope through pipe 120 is to be installed, the load is shared and the connection wire rope having the same thickness as a conventional thickness It is possible to use 130.

That is, in FIG. 11, a total of four connecting wire rope through pipes 120 (which means using a total of four connecting wire ropes 130) are provided, so that a connecting wire rope 130 having a general thickness can be adopted. Therefore, the diameter of the connecting wire rope through tube 120 may also be reduced.

12 is a perspective view of a large concrete block as a fourth embodiment according to the present invention.

If the large concrete block 100 is stored for a long time just before mounting or if a long time has passed after the mounting, if both ends of the connecting wire rope through-hole 120 is open, there is a risk of foreign matter penetrating therein.

If a large amount of foreign matter penetrates into the connection wire rope through tube 120, it becomes difficult to penetrate the connection wire rope 130.

To this end, a through pipe stopper 140 is provided at each end of the connecting wire rope through pipe 120 so that the through pipe stopper 140 is detachably coupled to both ends of the connecting wire rope through pipe 120. It can be prevented.

In addition, a male screw portion 141 that is screwed to the connection wire rope through tube 120 is formed at a lower portion of the through tube stopper 140, and a rotation manipulation unit 142 for rotating operation is formed on an upper surface of the through tube stopper 140. If formed, not only the sealing of both ends of the connecting wire rope through pipe 120 is possible, but also it is easy to separate the through pipe plug 140 from the connecting wire rope through pipe 120. That is, the through tube stopper 140 and the connecting wire rope through tube 120 correspond to the relationship between the bolt and the nut.

FIG. 13 is a view for explaining a method for manufacturing the large concrete block of FIG. 12.

Figure 13 (a) shows a state in which concrete is poured into the formwork.

Formwork is installed according to the size and shape of the large concrete block body, and the formwork is provided with sepa bolts and separ nuts to withstand the lateral pressure of the concrete to be poured.

The connecting wire rope through tube 120 is fixed to the inside of the formwork using a sepabol bolt, and the through wire stopper 140 is coupled to the connecting wire rope through tube 120.

In addition, the upper end of the formwork is provided with a through-pipe holder 200, the through-pipe stopper 200 is temporarily fixed to the through-pipe stopper 140 screwed to the connecting wire rope through-pipe 120, as a result of the connection wire The rope through pipe 120 is fixed to the through pipe holder 200.

Thus, if the through-pipe holder 200 is used, it is easy to precisely arrange the height of the through-pipe stopper 140.

Comparing this state with the state of FIG. 6 (b), the connection wire rope through tube 120 has no exposed portion from the large concrete block body 110, and thus, the connection wire rope tube as shown in FIG. 6 (b). It is unnecessary to cut off a part of the clearance 120.

Figure 13 (b) shows a form, such as formwork is demolished after the concrete curing in the state of Figure 13 (a).

In this state, even if the large concrete block 100 is stored in the long-term tube there is no fear that foreign matter penetrates inside the connection wire rope through-pipe 120.

Figure 13 (c) shows a state in which the through-pipe plug 140 is separated from the large concrete block 100 for lifting and mounting.

After lifting and mounting of the large concrete block 100 is completed, if the large concrete block 100 needs to be used again, the connecting wire rope through pipe 120 is connected to the through pipe stopper 140 as shown in FIG. You can stop it.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the embodiments described above are intended to be illustrative, but not limiting, in all respects. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: large concrete block 110: large concrete block body
120: connecting wire rope through tube
130: connection wire rope 131: lifting ring
132: tug
140: through-pipe stopper 141: male thread portion
142: rotation control unit

Claims (6)

In the large concrete block for crane lifting produced in the first place and mounted in the second place, which is different from the first place:
Large concrete block bodies made of concrete;
A synthetic resin pipe, the central portion is embedded in the interior of the large concrete block body, both ends of the connecting wire rope through pipe disposed on the upper surface of the large concrete block body toward the top;
Crane lifting large concrete block, characterized in that comprises a.
The method of claim 1,
A central concrete block for crane lifting, characterized in that the center portion of the connecting wire rope through tube is arranged to form a convex downwardly along the longitudinal direction.
The method of claim 1,
The connecting wire rope through pipe is a large concrete block for crane lifting, characterized in that the corrugated pipe shape.
The method of claim 1,
A large concrete block for crane lifting, characterized in that each through pipe stopper is detachably coupled to both ends of the connection wire rope through pipe.
The method of claim 1,
It further comprises a connection wire rope including a lifting ring provided on each end, the connection wire rope is disposed along the inside of the connection wire rope through pipe to be freely movable along the connection wire rope through pipe, A pair of lifting hooks of the connecting wire rope is a large concrete block for crane lifting, characterized in that exposed from the connecting wire rope through pipe, respectively.
In the method for manufacturing a large concrete block for lifting the crane is manufactured in a first place and mounted in a second place that is different from the first place,
After fixing in advance the U-shaped connecting wire rope through pipe made of a synthetic resin pipe in the formwork for the large concrete block body, and then cast concrete in the form to form a large concrete block body made of concrete, thereby The central portion of the connecting wire rope through pipe is embedded in the large concrete block body, and both ends of the connecting wire rope through pipe are disposed on the upper surface of the large concrete block body to manufacture a large concrete block for lifting the crane. Way.

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