KR102589488B1 - Apparatus for constructing concrete filled steel tube - Google Patents

Abstract

The present invention relates to a mount having a mounting surface that can be coupled to construction equipment, four support frames fixedly coupled to the side opposite to the mounting surface among both sides of the mount, and arranged at a predetermined angle with respect to the center of the mount, Two fixed jigs are formed on any two of the support frames, and the other two support frames each have a movable space, and include a movable jig rotatably coupled to a vertical frame surrounding each movable space, concrete. A filled steel pipe construction device is provided.

Description

Concrete filled steel pipe construction device {APPARATUS FOR CONSTRUCTING CONCRETE FILLED STEEL TUBE}

The present invention embodies the concrete-filled steel pipe construction device of the applicant's previously filed application number 10-2020-0183773, and more specifically, relates to a concrete-filled steel pipe construction device that can be penetrated or recovered by gripping the outer peripheral surface of the steel pipe.

When constructing underwater structures such as bridge foundations and pier structures in underwater conditions such as rivers or the sea, foundation piles must be constructed in underwater ground.

For this purpose, a casing made of steel pipe is installed by penetrating into the underwater ground, drilling the underwater ground within the casing using an RCD (Reverse Circulation Drill) to drill a pile hole, then inserting and placing reinforcing bars into the pile hole, and then connecting the pile hole and the casing. A method of constructing a foundation pile with the lower end penetrated into the underwater ground is used by pouring concrete inside.

In order to construct the casing by penetrating it into the underwater ground, a separate support is installed on the water site, necessary equipment such as an oscillator, piler, and RCD are placed on the upper part of the support, and the casing is sunk by its own weight so that it is perpendicular to the underwater ground. After erecting the casing, the casing is rotated with an oscillator or vibration is applied to penetrate the soft layer of the underwater ground to reach the hard layer.

In particular, after the construction of the foundation pile is completed by drilling the pile hole and pouring concrete, a process of pulling out and recovering the part that is no longer needed from the casing is required.

In this process, in order to easily pull out the casing, some of the concrete on the upper part of the inside of the casing is crushed, and then some of the exposed outer periphery of the casing is gripped. During pulling, some of the outer periphery of the casing that is gripped is damaged, making the recovery process no longer possible. There is a problem that makes progress difficult.

Korean Patent No. 10-2187757 (announced on December 7, 2020) Korean Patent No. 10-2034741 (announced on October 21, 2019) Korean Patent No. 10-0962081 (announced on June 9, 2010) Korean Patent Publication No. 10-2018-0126825 (published on November 28, 2018)

The present invention was devised to solve the above problems, and its purpose is to provide a concrete-filled steel pipe construction device that can penetrate the object into the ground and draw it out in a simplified process when removing the previously inserted object.

A concrete filled steel pipe construction device according to an embodiment of the present invention includes a mount having a mounting surface that can be coupled to construction equipment, a mount that is fixedly coupled to the side opposite to the mounting surface among both sides of the mount, and a mount with the center of the mount as the basis. Four support frames arranged at a predetermined angle, two fixed jigs are formed on any two of the support frames, and the other two support frames each have a movable space and rotate on a vertical frame surrounding each movable space. It may include a movable jig that is possibly coupled.

A movable space may be formed in each pair of adjacent support frames among the support frames.

A rotation axis that penetrates along the thickness direction of the vertical frame is formed on one side of each movable jig, so that the movable jig rotates around the rotation axis, and is formed parallel to the rotation axis on the other side of each movable jig. A movable shaft may be formed, and may include a slide member having a long hole through which the movable shaft passes.

The long hole may be formed to provide a gap in an oval shape so that the slide member can move a predetermined distance in the horizontal direction.

The upper end of the slide member may be arranged to move linearly along a guide ledge formed along the horizontal direction of the vertical frame.

It may include a non-slip member formed on each surface of the fixed jig and the movable jig facing each other and having a plurality of friction protrusions to prevent slipping on the outer peripheral surface of the steel pipe.

Each of the movable jigs can be rotated in the forward and reverse directions by the hydraulic pressure of the hydraulic cylinder.

The construction equipment may include a vibro hammer equipped with a vibration generating device.

In the concrete-filled steel pipe construction device according to an embodiment of the present invention having the above-mentioned configuration, the process for removing a part of the concrete filled inside the steel pipe is omitted in the process of removing the concrete-filled steel pipe in the introduced state, and the concrete filling is omitted. By gripping and removing the outer circumferential surface of the steel pipe, it has the effect of shortening the overall construction period and reducing costs.

Figure 1 is a perspective view showing a concrete-filled steel pipe construction device according to an embodiment of the present invention.
Figure 2 is a rear view of Figure 1.
Figure 3 is a bottom view of Figure 1.
Figure 4 is a front view of Figure 1.
Figure 5 shows a state in which the movable jig is rotated radially inward in the state of Figure 4.
Figures 6 and 7 are diagrams showing the use of the concrete-filled steel pipe construction device according to an embodiment of the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and to provide a general understanding of the technical field to which the present invention pertains. It is provided to fully inform the skilled person of the scope of the present invention, and the present invention is only defined by the scope of the claims.

The terminology used herein is for describing embodiments and is not intended to limit the invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other elements in addition to the mentioned elements. Like reference numerals refer to like elements throughout the specification, and “and/or” includes each and every combination of one or more of the referenced elements. Although “first”, “second”, etc. are used to describe various components, these components are of course not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may also be a second component within the technical spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless clearly specifically defined.

Spatially relative terms such as “below”, “beneath”, “lower”, “above”, “upper”, etc. are used as a single term as shown in the drawing. It can be used to easily describe the correlation between a component and other components. Spatially relative terms should be understood as terms that include different directions of components during use or operation in addition to the directions shown in the drawings. For example, if a component shown in a drawing is flipped over, a component described as “below” or “beneath” another component will be placed “above” the other component. You can. Accordingly, the illustrative term “down” may include both downward and upward directions. Components can also be oriented in other directions, so spatially relative terms can be interpreted according to orientation.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a perspective view showing a concrete-filled steel pipe construction device according to an embodiment of the present invention, Figure 2 is a rear view of Figure 1, Figure 3 is a bottom view of Figure 1, Figure 4 is a front view of Figure 1, Figure 5 shows a state in which the movable jig is rotated radially inward in the state of Figure 4, and Figures 6 and 7 are diagrams showing a state in which the concrete-filled steel pipe construction device is used according to an embodiment of the present invention.

Referring to FIGS. 1 to 7 , the concrete-filled steel pipe construction apparatus 100 according to an embodiment of the present invention may include a mount 101, a support frame 110, and a movable jig 130.

The mount 101 may include a mounting surface 101 on which a vibro hammer (VH), which is generally used in construction equipment such as excavators and pilers used in civil engineering and construction sites, can be detachably mounted.

Here, the vibro hammer (VH) may include a vibration generator (not shown) inside. When power is applied to the vibration generator, vibration is generated in the vibro hammer (VH), and the vibration causes an intrusion object (P) such as a steel pipe or sheet pile to be inserted into the ground. In this process, the vibro hammer (VH) increases porosity or permeability by applying vibration using the vibration generator to the construction device 100.

On the contrary, when removing an object P in a penetrating state, such as a steel pipe or a sheet pile, vibration is applied to the object P held by the construction device 100 to facilitate pulling it out from the ground.

The support frame 110 is fixedly coupled to one of both sides of the mount 101 opposite to the mounting surface 101, and may be arranged at at least four locations at a predetermined angle based on the center of the mount 101. The support frame 110 supports two fixed jigs 140 and two movable jigs 130 facing the two fixed jigs 140, respectively.

The support frame 110 is formed to have a predetermined length along the height direction, and any two support frames 110 of the support frames 110 are each provided with a movable space 110a, and each movable space 110a A movable jig 130 may be formed that is rotatably coupled to the vertical frame 120 surrounding the .

Here, a movable space 110a may be formed in each pair of adjacent support frames 110 among the support frames 110 .

In addition, each movable jig 130 rotates around a rotation axis 121 formed by penetrating along the thickness direction of the vertical frame 120, and has a movable space 110a at the end of each movable jig 130. It may include a slide member 131 that includes a movable shaft 121a formed along both walls and has a long hole 131a through which the movable shaft 121a passes.

The movable jig 130 rotates around the rotation axis 121 to grip or release the object P inside the vertical frame 120. At this time, a driving cylinder (not shown) is disposed, and a pressure hose (H) that provides hydraulic or pneumatic pressure to the driving cylinder is provided, and the driving cylinder expands and contracts in the forward or reverse direction by the pressure provided by the pressure hose (H). And by applying a force to pull or push the movable jig 130, the movable jig 130 can be rotated in the forward or reverse direction about the rotation axis 121.

A movable shaft 121a formed parallel to the rotation axis 121 is formed on the other side of each movable jig 130, and a slide member 131 having a long hole 131a through which the movable shaft 121a penetrates is formed. may be included. Here, the long hole may be formed to provide clearance in an oval shape so that the slide member 131 can move a predetermined distance along the horizontal direction.

Additionally, the upper end of the slide member 131 may be arranged to move linearly along the guide ledge 122 formed along the horizontal direction of the vertical frame 120.

That is, the slide member 131 receives the driving force of the movable jig 130 through the long hole 131a, and moves linearly along the guide ledge 122, so that the two movable jigs 130 are connected to two fixed jigs facing each other. By moving closer to the (140) side, the object P can be grasped.

In addition, a non-slip member 132 may be formed on surfaces of the fixed jig 140 and the movable jig 130 facing each other.

The non-slip member 132 has a plurality of friction protrusions to prevent slipping while in close contact with the outer peripheral surface of the object (P). The friction protrusions may be attached and fixed separately with protrusions for increasing friction, but the anti-slip function may be performed by increasing the surface roughness of one surface of the non-slip member 132 through surface processing, so it is not limited to this.

Hereinafter, the operating process of the concrete-filled steel pipe construction device according to an embodiment of the present invention will be described.

First, as shown in FIG. 6, the construction device 100 is mounted on the vibro hammer (VH), and the movable jig 130 of the construction device 100 is fully opened in a direction away from the fixed jig 140. Wait for the object (P) that has been loaded.

The construction device 100 mounted on the vibro hammer (VH) descends toward the object (P).

As shown in FIG. 7, when the movable jig 130 of the construction device 100 is rotated in a direction approaching the fixed jig 140, the non-slip members 132 and 141 of the fixed jig 140 and the movable jig 130 are It is in close contact with the outer peripheral surface of the object (P).

Conventionally, the inside of the object (P) is filled with concrete (C), and some of the concrete on the upper side of the object (P) is removed to expose part of the upper thickness of the object (P), and then the thickness is gripped to remove the object. Although drawn, the concrete-filled steel pipe construction device according to the present embodiment omits the process of removing some of the concrete on the upper side of the object (P) as described above, and allows immediate drawing while holding the outer peripheral surface of the object (P). .

In other words, the concrete-filled steel pipe construction device according to an embodiment of the present invention omits the process of removing part of the concrete filled inside the steel pipe in the process of removing the concrete-filled steel pipe in the introduced state, and grips the outer peripheral surface of the concrete-filled steel pipe. This has the effect of shortening the total construction period and reducing the required cost.

As described above, the concrete filled steel pipe construction device according to the present invention has been described with reference to the illustrative drawings, but the present invention is not limited by the embodiments and drawings described above, and the technical field to which the present invention pertains within the scope of the patent claims. Various implementations are possible by those with ordinary knowledge.

100: Construction device
101: Mount part
110: support frame
110a: operating space
120: vertical frame
121: rotation axis
130: Movable jig
131: Slide member
132, 141: Non-slip member
140: Fixed jig

Claims (8)

A mount portion having a mounting surface that can be coupled to construction equipment;
Four support frames fixedly coupled to a side of both sides of the mount unit opposite to the mounting surface and arranged at a predetermined angle with respect to the center of the mount unit;
Two fixed jigs are formed on any two of the support frames, and the other two support frames each have a movable space and include a movable jig rotatably coupled to a vertical frame surrounding each movable space,
A rotation axis penetrating along the thickness direction of the vertical frame is formed on one side of each movable jig, so that the movable jig rotates around the rotation axis,
A concrete-filled steel pipe construction device comprising a movable shaft formed parallel to the rotation axis on the other side of each movable jig, and a slide member having a long hole through which the movable shaft penetrates. According to paragraph 1,
A concrete-filled steel pipe construction device in which a movable space is formed in each of a pair of adjacent support frames among the support frames. delete According to paragraph 1,
The long hole is formed to provide clearance in an oval shape so that the slide member can move a predetermined distance along the horizontal direction. According to paragraph 1,
The upper end of the slide member is arranged to move linearly along a guide ledge formed along the horizontal direction of the vertical frame. According to paragraph 1,
A filled steel pipe construction device comprising a non-slip member formed on each surface of the fixed jig and the movable jig facing each other and having a plurality of friction protrusions to prevent slipping on the outer peripheral surface of the steel pipe. According to paragraph 1,
Each of the movable jigs is rotated in the forward and reverse directions by the hydraulic pressure of the hydraulic cylinder. According to paragraph 1,
The construction equipment is a concrete filled steel pipe construction device including a vibro hammer provided with a vibration generating device.

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