JP5702935B2 - Discharge device for filling material and method for filling the same - Google Patents

Description

  The present invention relates to a filler discharging apparatus and a filling method thereof.

  The removal part of P-con formed at the time of construction of the concrete structure, the opening part formed when embedding a reinforcing member in the structure, or the defect part due to the surface of the structure being lost for some reason, etc. Various recesses existing in the structure may be repaired.

  In the repairing operation of the removed part of the P-con and the repairing operation of the defective part, a method of manually filling a filler made of a mortar or grout material with a gold iron is generally used. .

  In addition, the repair work for the opening portion formed when embedding the reinforcing member in the concrete structure is performed by manually filling the filler made of a mortar or grout material as described above, and then reinforcing the filling portion. A method of inserting a member is common.

The conventional repair method described above has the following problems.
(1) The accuracy of quality depends on the superiority or inferiority of the worker's construction skills.
(2) At the time of construction to the concave portion opened sideways, the filler spreads to the periphery during the surface leveling work with a gold iron, so there is a high possibility that a separate surface repair work will be performed.
(3) At the time of construction to the concave portion opened downward, the filler is likely to be dripped, and the working efficiency is poor.
(4) When the reinforcing member is embedded in the filling portion, it cannot be sufficiently specified whether the reinforcing member is disposed at an appropriate position.
(5) Since the volume of the removed portion of P-con is small, the adhesion strength of the filler may not be ensured sufficiently.

  Therefore, an object of the present invention is to provide a discharge device and a filling method thereof that can solve at least one of the above problems.

In order to solve the above-described problems, a first invention of the present application is a discharge device that discharges a filler made of a mortar or grout material to a recess of a structure, and a cross section of the recess A housing member having a cross-sectional shape substantially equivalent to the shape, capable of housing the filler, a pressing member slidably provided inside the housing member, and a piston for sliding the pressing member; includes, Ri Do from the outer periphery to the elastically deformable rubber of the receiving member, provided with a projection that having a outer diameter which is inserted into the recess by sliding of the pressing member, to discharge the filling material from the housing member It is an object of the present invention to provide a discharge device characterized by this.

The second invention of the present application is a discharge device that discharges a filler made of a mortar-type or grout-type material to the concave portion of the structure, and has a cross-sectional shape substantially equivalent to the cross-sectional shape of the concave portion. And at least an accommodating member that can accommodate the filler, a pressing member that is slidably provided inside the accommodating member, and a piston that slides the pressing member, and is elastic on the outer periphery of the accommodating member. It is an object of the present invention to provide a discharge device characterized in that a protrusion made of deformable rubber is provided in a spiral shape, and a filler is discharged from the housing member by sliding of the pressing member .

  A third invention of the present application is a filling material filling method using the discharge device according to the first or second invention, wherein the discharge device is inserted into a recess of a structure, and the discharge device According to the present invention, there is provided a filling material filling method in which a filling material is filled while the discharging device is gradually removed from a recess by a reaction force received from the filling material discharged from the container.

According to the present invention, at least one of the following effects can be obtained.
(1) The time for repair work can be shortened.
(2) The quality of repair work is less likely to vary.
(3) The need for surface repair work after filling with the filler is reduced.
(4) By providing an appropriate gap between the housing member and the concave portion, the filling is performed while the air in the concave portion is drawn through the gap, so that the filler can be filled more densely.
(5) By appropriately changing the cross-sectional shape and the length of the housing member, it is possible to deal with concave portions having various shapes.
(6) The protrusion provided on the housing member enables accurate insertion and positioning in the recess.
(7) At the time of filling with the filling material, at least one of the distal end portion and the protrusion of the housing member receives a reaction force from the filling material, and the discharge device is naturally pushed back, so that the discharge device is not separately removed.
(8) Since the protrusion provided on the housing member restricts the movement of the filler, the possibility of the filler leaking out is reduced.

Explanatory drawing which shows 1st Example of the discharge apparatus of this invention. Explanatory drawing which shows an example of the filling method of the filler using the discharge apparatus of this invention. Explanatory drawing which shows an example of the reinforcement method of the structure using the filling method of this invention. Explanatory drawing which shows an example of the cross-section repair method of the structure using the filling method of this invention. Explanatory drawing which shows 2nd Example of the discharge apparatus of this invention. Explanatory drawing which shows 3rd Example of the discharge apparatus of this invention.

  Embodiments of the present invention will be described in detail with reference to the drawings.

<1> Discharge Device A first embodiment of the discharge device according to the present invention will be described with reference to FIG.
The discharge device A according to the present invention is a device for discharging a filler D made of a mortar or grout material into a recess in a structure such as concrete.
The discharge device A includes a housing member 1 for housing the filler D, a pressing member 2 provided inside the housing member 1, and a piston 3 for sliding the pressing member 2 inside the housing member 1. And at least.

<2> Housing member The housing member 1 is a member for housing the filler D therein and discharging the filler D as necessary.
The accommodating member 1 only needs to have a cavity for accommodating the filler D therein and an opening for discharging the filler, and the cross section has a circular shape, a polygonal shape, and other cylindrical shapes. A member can be used.
Further, when the filling material D is a cartridge type, it may be a member having a structure capable of loading the cartridge.

  The length of the housing member 1 may be determined as appropriate depending on the depth of the concave portion of the structure, and there is no particular limitation.

The cross-sectional shape of the housing member 1 is formed to be approximately the same as the cross-sectional shape of the concave portion of the structure that is the target for which the discharge device A of the present application is used.
The “substantially equivalent” includes a shape that is slightly smaller than the cross-sectional shape of the recess C, and does not include a shape larger than the cross-sectional shape of the recess C.
For example, when the cross-sectional shape of the recess C is circular, the transverse cross-sectional shape of the housing member 1 may be a circle having a diameter that is about 3 mm smaller than the diameter of the recess C.
According to this configuration, an appropriate gap is created between the outer wall of the housing member 1 and the inner wall of the recess C, and the gap functions as an air escape when the filler D is filled.

<3> Pressing member The pressing member 2 is a member for discharging the filler D from the storage member 1 by pressing the filler D stored in the storage member 1.
The pressing member 2 has a cross-sectional shape substantially equal to the cross-sectional shape of the housing member 1 and is configured to be slidable in the longitudinal direction of the housing member 1.
The pressing member 2 can be made of rubber packing or other known members.

<4> Piston The piston 3 is a member that operates to slide the pressing member 2.
One end of the piston 3 is connected to the pressing member 2, and the pressing member 2 is configured to approach the opening of the housing member 1 by pulling the trigger 4.

<5> Usage Method An example of a filling method of the filler using the discharge device of the present invention will be described with reference to FIG.

<5.1> Insertion and Filling Operation of Discharge Device First, the discharge device A is inserted to the back of the recess C existing in the structure B in a state where the filler D is accommodated in the discharge device A.
Next, the trigger 4 is pulled while pressing the discharge device A against the bottom surface of the recess C.
Then, the piston 3 and the pressing member 2 are operated, and the filler D is discharged from the opening of the housing member 1 and begins to be filled into the recess C (FIG. 2 (a)).

<5.2> Action during filling [push-back of discharge device]
When the discharged filling material D begins to fill the recess C, the tip portion of the housing member 1 receives a reaction force from the discharged filling material D, and the entire discharge device A is gradually pushed back.

[Air escape inside the recess]
When the discharged filling material D begins to fill the concave portion C, the air originally remaining in the concave portion C goes to the outside via the gap E created between the outer wall of the housing member 1 and the inner wall of the concave portion C. And get out.

<5.3> Summary By repeating the above discharge process, the filler D is filled densely in order from the back side of the recess C toward the front side.
Further, when the filler D is filled up to the vicinity of the surface of the structure B, the discharge device A is naturally pulled out from the recess C (FIG. 2B).

An example of a structure reinforcing method using the filling method of the present invention will be described with reference to FIG.
In order to reinforce the existing structure B, a reinforcing method such as a post-head-bar method is known.
The filling method according to the present invention is used for repairing an opening portion performed at the final stage of the construction method.
After drilling the structure B and inserting the reinforcing member, the discharge device A is inserted into the opening C1 in accordance with the filling method described above to fill the filler D and the discharge device is opened to the opening C1. To complete the work.

An example of a method for repairing a cross section of a structure using the filling method of the present invention will be described with reference to FIG.
The surface of the structure B made of concrete may be cracked or have a defect C2 due to an external impact such as an earthquake, aged deterioration, or other factors.
The method according to the present invention is used for repairing the defect C2.
Since the detailed method is in accordance with the filling method of the filler using the above-described discharge device A, the description is omitted.

A second embodiment of the ejection device according to the present invention will be described with reference to FIG.
A protrusion 6 can be provided on the outer periphery of the housing member 1 constituting the discharge device A within a range of an outer diameter that allows the housing member 1 to be inserted into the recess C.

[Operation and effect of this embodiment]
The projection 6 fills a part of the gap E between the housing member 1 and the inner wall of the recess C, so that the positioning of the ejection device A is inserted into the recess C and the housing member 1 is filled with the filler. This contributes to improving the stability and securing a passage for air remaining inside the recess C.

[Example of protrusion material]
A member such as rubber that can be elastically deformed may be used for the protrusion 6.
In this case, even when the outer diameter of the housing member 1 including the protrusion 6 is larger than the diameter of the recess C, the outer diameter of the housing member 1 is reduced by the compression of the protrusion 6 within the elastic deformation range of the protrusion 6. Thus, the inner diameter of the concave portion C can be followed, and even if minute irregularities or the like are present on the inner wall, the projection 6 is surely adhered to the inner wall.
Therefore, the single ejection device A can be inserted into the plurality of concave portions C having different diameters, and the ejection device A is positioned more stably in the concave portion C after the insertion.

[Example of protrusion arrangement]
The protrusion 6 can be arranged intermittently or continuously with respect to the circumferential direction or the longitudinal direction of the housing member 1.
In the case where the protrusions 6 are provided intermittently with respect to the circumferential direction of the housing member 1, the gap E formed between the protrusions 6 serves as air vent and contributes to dense filling of the filler D.
On the other hand, when the protrusions 6 are continuously provided in the circumferential direction, the grooves formed between the protrusions 6 are finally communicated with the outside air by providing the protrusions 6 in a spiral shape in the circumferential direction. Then, the groove can function as an air vent.

A third embodiment of the ejection device according to the present invention will be described with reference to FIG.
In the present embodiment, the protrusion 6 is intermittently arranged on the outer periphery of the distal end portion of the housing member 1 to provide the gap E, so that the distal end portion of the housing member 1 is provided with a bowl-shaped member that is partially cut away. Can be configured.

[Operation and effect of this embodiment]
According to the present embodiment, since the protrusion 6 receives the reaction force from the filled filler D more reliably, the discharge device A is pushed back more reliably, and the removal operation of the discharge device A is easier. Can be done.

DESCRIPTION OF SYMBOLS 1 Accommodating member 2 Pressing member 3 Piston 4 Trigger 5 Reinforcement member 6 Protrusion A Discharge device B Structure C Recess C1 Opening part C2 Defect part D Filling material E Gap

Claims (3)

A discharge device that discharges a filler made of a mortar or grout material to the concave portion of the structure,
A storage member having a cross-sectional shape substantially equivalent to the cross-sectional shape of the recess, and capable of storing the filler;
A pressing member slidably provided inside the housing member;
A piston for sliding the pressing member,
Ri Do from the periphery to the elastically deformable rubber of said housing member, a protrusion is provided that having a outer diameter which is inserted into the recess,
The filler is discharged from the housing member by sliding of the pressing member,
Discharge device. Discharge that discharges a mortar-type or grout-type filler to the concave portion of the structure.
An output device,
A storage member having a cross-sectional shape substantially equivalent to the cross-sectional shape of the recess, and capable of storing the filler;
A pressing member slidably provided inside the housing member;
A piston for sliding the pressing member,
Provided outer periphery made of an elastic deformable rubber projections of the housing member in threaded helically,
The filler is discharged from the housing member by sliding of the pressing member ,
Ejection detection device. A filling material filling method using the discharge device according to claim 1 or 2,
Inserting the discharge device into the recess of the structure,
The reaction force received from the filler discharged from the discharge device is filled with the filler while gradually removing the discharge device from the recess.
Filling method of the filler.

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