JP5296453B2 - Filling method of filler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To fill a filler in a gap between a support part and a base part by a simple method. <P>SOLUTION: After a filler pool 31 is formed by providing a cut-off material 30 surrounding the periphery of the support part 11, the filler is injected to the filler pool 31. Since the filler is thereby filled in such a way as to draw the filler to a gap between the support part 11 and a bridge seat 20 by suction by pumping action using displacements of a bridge beam 10 associated with the passage of vehicles, it is possible to fill the filler such as a resin in the gap between the support part 11 and the bridge seat 20 by a simple method. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention provides a filler such as a resin material in a gap between a support portion for supporting a member that receives a vehicle load such as a bridge or a rail (rail) for a railway vehicle and a base portion such as a girder provided on a bridge pier or the like. The present invention relates to a filling method for filling.

  If there is a gap between the support that supports the bridge and the girder, the impact load generated when the railway vehicle (train) passes will encourage stress concentration on other members, causing damage to the bridge (girder member). Since there is a possibility, if a gap occurs in the support portion, it is necessary to repair it at an early stage.

  And, in repairing the support part where the gap occurred, conventionally, after the bridge was raised with a hydraulic jack, the concrete of the girders was replaced, so when constructing the repair work, It was necessary to carry out closure work and slow driving of the vehicle, and repair work could not be easily performed.

On the other hand, in the invention described in Patent Document 1, for example, when repairing the gap generated between the supporting lower rod corresponding to the support portion and the saddle concrete corresponding to the base portion, the injection hole communicating with the gap After inserting the injection pipe and filling the resin (room temperature curable adhesive) through the injection pipe, repair work can be done easily and damage to the bridge (girder member) will occur To prevent.
JP-A-11-13023 (refer to paragraph 0028 in particular)

However, in the invention described in Patent Document 1, there is a problem that workability is low due to the reason described below.
That is, in the invention described in Patent Document 1, since the resin is injected into the gap through the injection pipe (injection hole), as shown in FIG. It is necessary to provide a plurality of injection pipes (injection holes) and inject resin into the gap from a plurality of locations.

  In addition, in order to inject the resin through one injection pipe (injection hole), which is smaller than the size of one or the gap, it is necessary to increase the pressure when injecting the resin. However, a pressure injection device for injection is required.

  In view of the above points, an object of the present invention is to make it possible to fill a gap between a support portion and a base portion with a filler such as a resin by a simpler method than in Patent Document 1.

  In order to achieve the above object, according to the present invention, in the first aspect of the present invention, a gap between a support portion that supports a member that receives a vehicle load (hereinafter referred to as a load receiving member) and a base portion that supports the support portion. In addition, a filling method for filling the filler, an installation step of forming a filler pool by installing a water-stopping material surrounding the support portion, and filling the filler pool after completion of the installation step And an injection step of injecting the agent.

  As a result, in the invention according to the first aspect, the filler is stored (pooled) in the filler pool formed so as to surround the periphery of the support portion. The portion is slightly displaced (deformed) to the lower side (base side), and the air accumulated in the gap between the support portion and the base is pushed out from the gap to the filler pool.

  When the vehicle passes and the vehicle load disappears, the support portion is displaced (restored) to the original state (upper side), so that the gap between the support portion and the base portion becomes negative pressure and is accumulated in the filler pool. The filler flows so as to be sucked into the gap.

  As described above, in the invention according to claim 1, the filling that has accumulated in the filler pool while the air accumulated in the gap between the support portion and the base portion is discharged by the pump action that occurs as the vehicle passes. The agent is filled so as to be sucked into the gap.

  Further, as is clear from the description of the above-mentioned actions and effects, the invention according to claim 1 does not require the track closing work and the slow drive operation of the vehicle. Since it becomes possible to fill the gap with the base, the repair work can be easily performed.

  Furthermore, since the filler is filled so that the filler is sucked into the gap between the support portion and the base portion by the pump action utilizing the displacement of the load receiving member accompanying the passage of the vehicle, the resin can be easily and reliably put in the entire gap. It becomes possible to spread.

  Therefore, in the first aspect of the invention, the filler is surely filled into the gap only by simple construction such as injecting the filler into the filler pool formed so as to surround the periphery of the support portion. Compared to the invention described in Patent Document 1, it is possible to fill a gap between the support portion and the base portion with a filler such as a resin by a simple method.

  In addition, in invention of Claim 2, when the bubble generation from a filler pool stops at the time of vehicle passing after completion | finish of an injection | pouring process, it is considered that filling with a filler was completed and a water stop material is removed. It has the removal process to perform.

  Further, in the invention according to claim 3, when the vehicle has passed a predetermined number of times (for example, 100 times) or more after completion of the injection process, it is considered that the filling of the filler is completed, and the water stop material is removed. It has the removal process to perform.

  In invention of Claim 4, it has a curing process which provides the protective wall which protects the filler with which the clearance gap between the support part and the base was covered so that the circumference | surroundings of a support part might be covered after completion | finish of a removal process. Features.

Thereby, in the invention of Claim 4, it can prevent that the filler with which it filled is destroyed at an early stage.
In the invention described in claim 5, the filler is a resin material mainly composed of an acrylic resin. In the invention described in claim 6, the ambient temperature is −10 ° C. The injection process is performed when the temperature is in the range of ~ + 35 ° C.

  In this embodiment, the filling method of the filler according to the present invention is performed by filling the gap between the support portion supporting the bridge for the railway vehicle and the base portion with a filler such as a resin material, thereby generating a gap. The embodiment of the present invention will be described below with reference to the drawings.

1. DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing a schematic structure of a bridge, FIG. 2 is a process diagram showing a construction procedure of a girder repair work, and FIGS. 3 to 6 are explanations showing each process in the girder repair work. FIG.

2. FIG. 1 is a diagram illustrating an example of a schematic structure of a bridge that is a target of a girder repair work according to the present embodiment. And the bridge (bridge girder) 10 which is a member which receives a vehicle (train) load is supported by the concrete girder base 20 which comprises the base in the support part 11 set to the both ends of the longitudinal direction.

  In addition, the support part 11 which concerns on this embodiment is comprised from 11A of metal plates, such as steel materials, and the shoe 11B made of hard rubber, the plate 11A is fixed to the bridge girder 10, and the shoe 11B is on the girder 20 Has been placed. And a gap | interval will generate | occur | produce between the support part 11 and the girder 20 due to the secular deterioration of the shoe 11B, the sinking of the girder 20, and the like.

3. FIG. 2 is a process diagram showing the construction procedure of the girder repair work. Hereinafter, the construction method of the girder repair work will be described with reference to FIG. In addition, the following S1, S3, etc. are codes | symbols which show each process shown by FIG.

  First, after cleaning the support part 11, the girder 20 and their surroundings to be constructed (S1), as shown in FIGS. 3 and 4, the water blocking material 30 is installed so as to surround the support part 11 By doing so, the filler pool 31 is formed (S3).

  The filler pool 31 is a space for storing (pooling) the filler constituted by the water stop material 30 and the stool 20, and the support portion 11 is located substantially at the center of the filler pool 31. It is desirable to install the water stop material 30 as described above.

  Next, as shown in FIG. 5, after injecting a filler mainly composed of acrylic resin into the filler pool 31 (S5), until the vehicle passes a predetermined number of times (for example, 100 times) or more, or when the vehicle passes The state shown in FIG. 5 is maintained until no bubbles are generated from the filler pool 31 (S7).

  When the vehicle passes a predetermined number of times or when no bubbles are generated from the filler pool 31 when the vehicle passes, the water stop material 30 is removed (S9) and the outer peripheral side of the support portion 11 is suspended. After removing unnecessary fillers, the support portion 11 and the girders are covered with a decorative material having resistance to wind and rain such as mortar as shown in FIG. A protective wall 32 is provided to protect the filler filled in the gap with 20 (S11).

3. Features of Girder Repair Work According to this Embodiment In this embodiment, a filler pool 31 is formed by installing a water stop material 30 surrounding the support portion 11, and then a filler is injected into the filler pool 31. Therefore, the filler is stored in the filler pool 31.

  When the bridge girder 10 receives a vehicle load in this state, the support part 11 is slightly displaced (deformed) downward (girder 20 side), and the air accumulated in the gap between the support part 11 and the girder 20 Is pushed out into the filler pool 31 from the gap.

  Further, when the vehicle passes and the vehicle load disappears, the support portion 11 is displaced (restored) to the original state (upper side), so that the gap between the support portion 11 and the girder 20 becomes negative pressure, and the filler pool The filler accumulated in 31 flows into the gap so as to be sucked.

  As described above, in the present embodiment, the filling that has accumulated in the filler pool 31 while the air accumulated in the gap between the support portion 11 and the girder 20 is discharged by the pump action that occurs as the vehicle passes. The agent is filled so as to be sucked into the gap.

  Further, as is apparent from the above description of the operation and effect, in the present embodiment, it is not necessary to perform the track closing work and the slow driving operation of the vehicle. Since it is possible to fill the gap with the filler, repair work can be easily performed.

  Further, since the filler is filled so as to suck the filler into the gap between the support portion 11 and the beam seat 20 by the pump action using the displacement of the bridge girder 10 accompanying the passage of the vehicle, a plurality of injection pipes (injection pipes) Of course, it is not necessary to provide holes), and it is possible to easily and reliably spread the resin over the entire gap without using a pressure injection device.

  Therefore, in this embodiment, the filler is surely filled into the gap only by simple construction such as injecting the filler into the filler pool 31 formed so as to surround the periphery of the support portion 11. Compared to the invention described in Document 1, it is possible to fill the gap between the support portion 11 and the beam seat 20 with a filler such as a resin by a simple method.

  In the present embodiment, as described above, the filler is filled so that the filler is sucked into the gap between the support portion 11 and the beam seat 20 by the pump action using the displacement of the bridge beam 10 accompanying the passage of the vehicle. Therefore, it is affected by the viscosity of the filler and the ambient temperature during construction.

  Therefore, in the present embodiment, as a filler, a resin material mainly composed of an acrylic resin, for example, DK550-003S (for summer), DK550-003R (for spring, DENKA HARDLOCK DK550, manufactured by Denki Kagaku Kogyo Co., Ltd.) (For summer) and DK550-003W (for winter) are used according to the season, and when the ambient temperature is in the range of −10 ° C. to + 35 ° C. with the viscosity of the filler being about 300 mPa · s. Is injected into the filler pool 31.

  In the present embodiment, since the filler is filled by the pump action using the displacement of the bridge girder 10 accompanying the passage of the vehicle, the gap is not formed even when the bridge girder 10 is displaced and the support portion 11 moves up and down. It is necessary to set the height of the water stop material 30 and the liquid level of the filler so as to be always immersed in the filler injected into the filler pool 31.

  Moreover, in this embodiment, after removing the water stop material 30, the protective wall 32 which protects the filler with which the clearance gap between the support part 11 and the girder 20 was filled is provided so that the circumference | surroundings of the support part 11 may be covered. Therefore, it is possible to prevent the filled filler from being destroyed at an early stage.

  In the filling method of the filler according to the present embodiment, intermittent displacement occurs as the vehicle passes through during the curing reaction of the filler, and this intermittent displacement affects the curability of the filler. Possible effects. However, according to the confirmation test of the filling method of the filler according to the present embodiment, it is confirmed that the intermittent displacement due to the passage of the vehicle does not affect the curing reaction, and the filler is normally cured.

4). Correspondence between Invention Specific Items and Embodiments In this embodiment, S3 in FIG. 2 corresponds to the installation step described in the claims, and S5 in FIG. 2 corresponds to the injection step described in the claims. 2 corresponds to the removal step described in the claims, and S11 in FIG. 2 corresponds to the curing step described in the claims.

(Other embodiments)
In the above-described embodiment, the present invention has been described by taking as an example the case where the filler is filled in the gap between the support portion 11 that supports the bridge girder 10 and the beam seat 20, but the application of the present invention is not limited thereto. For example, in a slab track, the present invention can also be applied to a case where a filler is filled in a gap between a concrete roadbed and a track slab.

  Further, in the above-described embodiment, the present invention has been described by taking as an example the case where the filler is filled in the gap between the support portion 11 of the bridge girder 10 for railway vehicles and the beam seat 20, but the application of the present invention is limited to this. It can be applied to other bridges.

  Moreover, in the above-mentioned embodiment, although the acrylic resin was employ | adopted as a filler, this invention is not limited to this, For example, you may employ | adopt a polyester resin or an epoxy resin as a filler. In addition, when using a polyester resin as a filler, it is necessary to strictly control the adjustment of the mixing ratio, and an epoxy resin needs to be applied in consideration of the narrow range of workable temperatures. .

  Moreover, in the above-described embodiment, repair work was performed during normal business operation. However, the present invention fills the gap with the filler by using the pump action generated with the load acting on the support portion 11. As long as a load capable of generating a pumping action can be applied to the support portion 11, the construction time is not limited to the time of business operation.

  Further, the present invention is not limited to the above-described embodiment as long as it matches the gist of the invention described in the claims.

FIG. 3 is an explanatory diagram showing a schematic structure of a bridge. It is a chart which shows the process which shows the construction procedure of girder repair work. It is explanatory drawing which shows the installation process in girder repair work. It is a perspective view of the filler pool 31 formed in the installation process. It is explanatory drawing which shows the injection | pouring process in girder repair work. It is explanatory drawing which shows the removal process in girder repair work.

Explanation of symbols

10 ... Bridge girder, 11 ... Supporting part, 11A ... Plate, 11B ... Shoe, 20 ... Girder seat,
30 ... Water stop material, 31 ... Filler pool, 32 ... Protective wall.

Claims (6)

A filling method for filling a filler in a gap between a support part that supports a member that receives a vehicle load and a base part that supports the support part,
An installation step of forming a filler pool by installing a waterstop material surrounding the support portion; and
After completion of the installation process, it possesses an injection step of injecting the filler into said filler pool,
By the pumping action that occurs as the vehicle passes, the air that has accumulated in the gap between the support portion and the base portion is discharged, and the filler that has accumulated in the filler pool is sucked into the gap and filled. A filler filling method characterized by the above.   The filling of the filler according to claim 1, further comprising a removal step of removing the water-stopping material when the generation of bubbles from the filler pool is stopped when the vehicle passes after completion of the injection step. Method.   The filling method of the filler according to claim 1, further comprising a removal step of removing the water-stopping material when the vehicle passes a predetermined number of times or more after the injection step. After the removal step, a curing step is provided in which a protective wall is provided to protect the filler filled in the gap between the support portion and the base portion so as to cover the periphery of the support portion. Item 4. A method for filling a filler according to Item 2 or 3 .   The method for filling a filler according to any one of claims 1 to 4, wherein the filler is a resin material mainly composed of an acrylic resin.   The filling method according to claim 5, wherein the injection step is performed when the ambient temperature is in the range of -10 ° C to + 35 ° C.

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