KR101268843B1 - Charging method for infill material using planar end panel - Google Patents

Abstract

In order to connect the precast structures to the connecting grooves formed to be in contact with each other, the precast structures are mechanically connected with each other by using a connecting material such as steel wire or internal reinforcing bars, and then a flat type for filling the filling material for closing the connecting grooves more effectively. Filler filling device using a finish plate and a filler filling method using a flat finish plate. The filling device includes a plurality of fastening holes are formed on the outer side corresponding to the plurality of fixing grooves along the periphery of the connection groove, the flat closing plate formed with a filler inlet and an air outlet; A plastic anchor inserted into the fixing groove via the fastening hole to fix the flat closing plate to the precast structure and having protrusions formed on an outer circumferential surface thereof; A filler filled in the filler injection hole; And a hydraulic device including a compressor for pressing and filling the filler into the connection groove through the filler injection hole.

Description

Filling method using flat finish plate {CHARGING METHOD FOR INFILL MATERIAL USING PLANAR END PANEL}

The present invention relates to a filler filling method using a planar finish plate. More specifically, after the precast structures are connected to each other by using a connection material such as steel wire or internal reinforcing in the connection grooves formed by contacting the precast structures, the fillers for closing the connection grooves may be more effectively filled. It is about a filler filling method using a flat finish plate.

FIG. 1A illustrates an example of a connection joint of a precast structure 20 that is conventionally connected to each other.

That is, the precast structure is a retaining wall structure, and the wall 21 and the bottom plate 22 are first manufactured by a precast segment member and connected to each other by mechanically fastening the wall 21 and the bottom plate 22 to each other. Let's go.

At this time, the most conventional fastening means 40 is a coupler 41 and the anchor bolt 42. This is illustrated in Figure 1b.

That is, both connecting joints are connected to the connecting grooves (B1, B2) in contact with each other is naturally formed, the connecting groove (B) which is to fasten the anchor bolts 41 for connecting the precast structure to each other with the coupler (42) This is to create a space for.

After the anchor bolts 41 are connected to each other by the coupler 42, the anchor bolts 41 are exposed to the outside together with the couplers. Such exposure may lead to defects due to corrosion of the fastening means. (B) is finished with a filler 30 such as mortar.

However, the filler 30 is to be filled more tightly in the connection groove (B), the filler 30 and the fastening means 40 is integrated without being eliminated from each other, so that the defect of the connection joint does not occur. There was a problem that quality control is not done properly because it is done by hand.

Figure 1c shows a longitudinal connection state diagram of the culvert structure 50, such culvert structure 50 is a factory made of a precast structure 51 made in the form of a rectangular hollow box to be connected to each other in the field.

At this time, the connection joint of the precast structure may be used if the coupler and the anchor bolt, but using the steel wire (60).

That is, adjacent wires are connected to each other in the precast structure, and the wire connection grooves are arranged to communicate with each other. By using the same fixing device 70, adjacent precast structure is to be connected while being pressed by the introduced prestress.

In this connection groove (B) is a fixing device is arranged to fill the filler 30, such as mortar also to close the connection groove (B).

However, this work was performed by hand in the field, there was a problem that quality control is not performed properly.

Furthermore, FIG. 1D shows an arc segment segment 71 constituting a segment ring used for the construction of the shield tunnel structure 70. The segment is an arc direction and a connecting direction, that is, a longitudinal direction, in order to be installed in the form of a segment ring. Also, the segments are connected to each other.

The connecting groove (B) is also used to connect the segment (71), which can be seen that the fastening means 40 such as anchor bolts are also installed for connecting the segments.

Therefore, after connecting the segment through the connecting groove (B) using a fastening means 40 such as a connecting bolt, the connecting groove is also finished using a filler (not shown) such as mortar.

However, this work was also done by hand in the field, there was a problem that quality control is not done properly,

In particular, when a plurality of connection grooves B are formed on the inner ceiling surfaces of the structures, such as the culvert structure 50 or the shield tunnel structure 70, the connection grooves are opened in the direction of gravity.

Therefore, it is difficult to fill the filler in the connecting groove (B), there is a problem that the workability is very poor, such as the filler flows down in the direction of gravity in the filling process.

In addition, since the filling work is performed on the head of the worker, the workability is very low, and the filling material may be closed without being integrated with the fastening means installed in the connecting groove, which may lead to problems in the construction of the structure due to the occurrence of defects in the connecting groove (B). It was pointed out.

Accordingly, the present invention allows the filler to be more easily filled in the connection groove formed in the connection joint portion of the precast structure, so that the filler can be more reliably integrated with the fastening or connecting means installed in the connection groove without falling off. To improve the workability for the connection joint of the work, and to provide a filler filling method using a flat finish plate to ensure the quality control of the connection joint to be a technical problem.

According to an aspect of the present invention,

First, the connection groove of the precast structure is to isolate the internal space of the connection groove from the outside through the planar closing plate, and to be filled by injecting a filler in the connection groove.

In this case, the filling effect can be more reliably secured as compared with the manual filling operation.

Second, the present invention uses a plastic anchor, in particular, in order to allow the planar finishing plate to be fixedly installed with the precast structure. These plastic anchors can be installed by tightening nails or screws into the plastic anchors, making them very easy to install and very easy to remove in the future when the flat finish plate is removed.

To this end,

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As a method for filling a mortar-containing filler material in the connection groove formed in the connection junction of the precast structures adjacent to each other,

A plurality of fixing grooves are formed in the precast structure around the connection grooves,

Fixing the plastic anchor is formed on the outer peripheral surface of the fixing groove,

A plurality of fastening holes are formed on the outer side to correspond to the fixing grooves so that the inner space of the connecting groove is sealed, and a fastening hole is formed in the fastening hole formed at the head of the fastening hole and the plastic anchor. Secure the planar finish plate to the precast structure,

And filling the filler into the connection groove through the filler injection hole of the flat finish plate by using a hydraulic device including a compressor.
By removing the fasteners from the plastic anchors, it is possible to disassemble and separate the flat finish plate without damaging the precast structure. The precast structure is a segment structure of a culvert structure or a shield tunnel structure connected to each other in the longitudinal direction. It provides a filler filling method using a planar finish plate to allow the internal reinforcement of the segment structure to be connected to each other by a turnbuckle in the inner space or to be fixed after the tension of the steel wire as a connecting material.

Also preferably,

After filling the filler and after the filler is cured in the inner space of the connection groove provides a filler filling method using a flat finish plate further comprising the step of separating the planar finishing plate from the connection joint of the precast structure.

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According to the present invention, particularly in the connection groove of the precast structure open in the direction of gravity, not only can the workability of the filling operation of the filler be greatly improved, but also the installation is simple, which is very advantageous for the construction and quality control of the connection groove.

Since the filling operation of the filling material by manual work is performed by a mechanical device such as a hydraulic device, the connection performance and the finish are effectively performed at the connection joint of the precast structure.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

1A is a perspective view of a retaining wall structure in which a conventional connection junction is formed;
FIG. 1B is a detailed view of the connection joint of the precast structure of FIG. 1A;
Figure 1c is a schematic view of the process step and the joint of the conventional culvert structure formed joint connection,
1d is a constructional view of the sheath tunnel structure formed with a conventional connection junction,
Figure 2a, 2b and 2c is a perspective view of the configuration of the filling device including a flat closing plate of the present invention, a perspective view of the installation of the plastic anchor and the installed flat closing plate installed,
Figures 3a, 3b, 3c, 3d and 3e is a construction sequence diagram of the filling device using a flat finish plate of the present invention
4A and 4B are perspective views of precast structures and segments.

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 the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

<Filling device 100 using the flat finish plate of the present invention>

The filling device 100 includes a planar finishing plate 110, a plastic anchor 120, a filling material 130, a sealing material 140, and a hydraulic device 150.

The filling device 100 includes a filling material including mortar in a connection groove B formed in a connection joint part A of the precast structure 200 which includes a culvert or a shield tunnel and is installed adjacent to each other as shown in FIG. 2A ( 130 is a device for filling, it is possible to be separated and recycled after the filler is cured after being installed for each connecting groove (B).

Accordingly, in the filling device 100, the planar finishing plate 110 is most preferably using an aluminum plate having a slight elasticity, where the planar shape means a certain thickness and the final installation state is to maintain a planar shape. do.

Since the planar finishing plate 110 is formed to have a very small area because the finishing object is the connection groove (B), even if the precast structure is formed in a curved shape, it is possible to maintain a flat shape.

Filling material inlet 111 and the air outlet 112 is formed in the planar finishing plate 110, respectively.

The filler inlet 111 is a hole into which the end of the injection hose 151 for press-fitting the filler as shown in Figure 2a is to be formed by forming at least one in the flat finish plate 110.

The air outlet 112 is a hole for confirming whether the filler 130, such as mortar, can be tightly filled in the connection groove B through the filler injection hole 111. It will also play a role in enabling it to be released.

In addition, the planar finishing plate 110 is formed in a rectangular plate shape in the outer portion is formed with a plurality of fastening holes 113 formed in a position corresponding to the fixing groove 210 formed in the precast structure 200 is spaced apart have.

Accordingly, the planar finishing plate 110 is fixed to the precast structure 200 by the plastic anchor 120 installed in the fastening hole 113.

The plastic anchor 120 is a kind of anchor as shown in FIG. 2B, and a plurality of protrusions 121 are formed on an outer circumferential surface thereof so as to be fixed while digging into the fixing groove 210 formed in the precast structure 200.

Fastening holes 122 are formed in the head of the plastic anchor 120 so that the fastener 123 including bolts or screws is installed, and the plastic anchor 120 is formed in the precast structure 200. After fixing to 210, the fastener 123 may be used to install the planar finish plate 110 to the precast structure 200.

The plastic anchor 120 is preferably installed for each fastening hole (113).

At this time, the plastic anchor 120 and the fastener 123, as shown in Figure 2b later, except for the plastic anchor 120, the planar closing plate 110 with the fastener 123 is removed, so in the present invention removable This is referred to as a fixture.

In addition, the filler 130 is a material for closing the connection groove (B) is usually used mortar. These mortars in particular will be mixed with the fluidizing agent and the foamed material.

First of all, the mixing means mixing the prepared mortar in addition to mixing the fluidizing agent and the foaming material in addition to the mortar of a certain strength.

The fluidizing material is to be used in the concrete admixture to facilitate the filling of the mortar to ensure the flow of mortar,

The foam material is to prevent the shrinkage of the mortar and thus the filler such as the mortar of the present invention is to prevent the defects generated in the filling of the connecting groove by the workability and shrinkage.

The filler 130 is filled in the connection groove (B) through the filler inlet 111 of the flat finishing plate 110 using the hydraulic device 150 to be described later, as shown in Figure 2c is finally cured.

The sealing material 140 is for sealing between the precast structure 200 in contact with the planar finishing plate 110, the filler 130 of the present invention is pressed into the connection groove (B), so the connection groove (B) in the pressing process Filler may leak from the ring to prevent it can use a ring-shaped rubber pad.

The sealing material 140 is disposed around the filler inlet 111 and the air outlet 112 as shown in Figure 2a.

The hydraulic device 150 is composed of a compressor 152 for supplying air pressure to press the filler in the connecting groove (B) as shown in Figure 2a and the injection lake 151 connected to the compressor 152, The filler 130 is supplied to the injection hose 151 so that the filler 130 is tightly filled in the connection groove B as shown in FIG. 2C.

<Filling Material Filling Method Using Flat Finish Plate 110 of the Present Invention>

First, the planar closing plate 110 is used to finish the connection grooves with the filler in using the connection groove (B) to connect the precast structure 200 to each other in the longitudinal direction and the like.

The precast structure 200 connected adjacent to each other may be a culvert structure as shown in FIG. 1C, or may be a shield tunnel structure as shown in FIG. 1D. The present invention will be described based on the case of the shield tunnel structure.

First, as shown in FIG. 4A, the shield tunnel structure as the precast structure 200 is installed by connecting the segments 220 to each other in the longitudinal direction and the arc direction as shown in FIG. 4B. Connection grooves (B) for providing a plurality are formed.

The connecting groove B is formed on a surface in which two adjacent segments 220 are in contact with each other, but it can be seen that the two connecting grooves are formed as one connecting groove in contact with each other.

It can be seen that a plurality of fixing grooves 210 are formed around the connection grooves B as shown in FIG. 3A.

The fixing groove 210 may be formed in advance when the precast structure 200, that is, the segment 220, but may be formed using a drill.

In the state in which the fixing groove 210 is formed, the plastic anchor 120 described above is inserted into and fixed to the fixing groove 210 as shown in FIG. 3B.

Since the protrusions are formed on the outer circumferential surface of the plastic anchor 120, the fixing of the plastic anchor is not a big problem, and since the flat closing plate 110 is separated later, it is not necessary to completely fix it.

After the plastic anchor 120 is inserted into the fixing groove 210 and fixed, the flat finishing plate 110 is connected to the fastening hole 113 of the fixing groove 210 and the flat closing plate 110. Will be set.

It can be seen that the flat closing plate 110 is installed so that the connection groove (B) is covered.

Next, the fastener 123 is fixed to the fixing groove 210 while inserting the fastener 123 including a screw or a nail into the fastening hole 113 of the flat closing plate 110 as shown in FIG. 3C. It is fastened to the anchor 120.

Accordingly, it can be seen that the planar finishing plate 110 is securely installed in the precast structure 200 while preventing the leakage of the filler by the sealing material 140.

Next, the injection hose 151 connected to the hydraulic device 150 is inserted into the filler injection hole 111 formed in the planar finishing plate 110 as shown in FIG. 3D, but the filler 130 is connected through the injection hose 151. It is to be filled in the groove (B).

At this time, the filler 130 is press-fitted into the connection groove (B) is tightly filled in the connection groove (B), it is filled in the connection groove (B) more reliably by the foam material mixed in the filler 130. It can be seen and no voids will remain.

Of course, the air forming the voids during the filling process 130 is automatically discharged through the air outlet 112 of the flat finish plate 110.

As such, whether or not the filler 130 is tightly filled in the connection groove B can be visually checked through the air outlet 112, so that the filling of the final filler 130 is completed at the tip of the injection hose 151. By using a blocking means such as a blocking plate formed to be able to complete the indentation of the filler.

The filling of the filler 130 of the present invention can be seen that the workability and construction / quality control is very easy due to the mechanization work rather than manual work.

When time passes after the filling of the filler 130 is completed, the filled filler 130 is cured.

By this curing, as shown in Fig. 3e, the fixing device 310 installed for the connection of the steel wire as a coupler or a connecting material for connecting the internal reinforcement in advance in the connecting groove (B) is completely integrated with the filling material, and the internal reinforcing, steel wire Connection hole formed in the connection groove (B) for the installation of the can be blocked by the filler material can have an effect that can prevent the defect caused by running water and the like penetrating through the connection hole.

Next, when the final filler 130 is sufficiently cured, the planar finish plate 110 is dismantled, which is simply removed from the plastic anchor 120 by removing the fastener 123 including the screw or nail from the plastic anchor 120. The plate 110 can be dismantled and separated, so that it can be reused later.

Thus, even in the disassembly of the flat finish plate 110, it can be seen that there is no damage to the precast structure, and it can be seen that the construction of the filling material is finally completed.

100: filling device
110: flat finish plate
111: filler inlet
112: air outlet
113: fastening hole
120: plastic anchor
121: turning
122: fastening hole
123: fastener
130: filling material
140: sealing material
150: hydraulic system
151: injection hose
152: compressor
200: precast structure
210: fixing groove
220: segment

Claims (8)

delete delete delete As a method for filling a filler including a mortar in the connection groove formed in the connection junction of the precast structures adjacent to each other on land,
A plurality of fixing grooves are formed in the precast structure around the connection grooves,
Fixing the plastic anchor is formed on the outer peripheral surface of the fixing groove,
A plurality of fastening holes are formed on the outer side to correspond to the fixing grooves so that the inner space of the connecting groove is sealed, and a fastening hole is formed in the fastening hole formed at the head of the fastening hole and the plastic anchor. Secure the planar finish plate to the precast structure,
And filling the filler into the connection groove through the filler injection hole of the flat finish plate by using a hydraulic device including a compressor.
By removing the fastener 123 from the plastic anchor 120, the flat finish plate 110 can be disassembled and separated without damage to the precast structure.
The precast structure is a segment structure of a culvert structure or a shield tunnel structure that is connected to each other in the longitudinal direction so that the internal reinforcement of the segment structure is connected to each other by a turnbuckle in the inner space of the connecting groove or the steel wire is settled after tension as a connecting material. Filling method using a flat finish plate characterized in that. 5. The planar finishing plate of claim 4, further comprising the step of separating the planar finishing plate from the joining portion of the precast structure after the filler is filled and then the filler is cured in the connecting groove internal space. Filling method using filler. The method of claim 4 or 5, wherein the filler is mixed with a fluidizing material and a foaming material so that no gap is formed in the inner space of the connecting groove. The method of claim 6, wherein the sealing member including a ring-shaped rubber pad is further installed at a portion where the flat finishing plate and the precast structure are in close contact with each other. delete

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