JP3367917B2 - How to repair a lie - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of repairing a sill, and more particularly to a method of repairing a sill for repairing a mainly ceramic sill buried under a track.

[0002]

2. Description of the Related Art Conventionally, a railway crossing water pipe, which is so-called "sill", is provided under a railroad track so as to cross the roadbed in order to secure water on both sides of the roadbed and drain rainwater. (In the present specification, it is referred to as “protrusion”.) Is buried. Ceramics have been widely used for this sill since ancient times, and as a result, cracks, tube breakage, and detachment of seams under the influence of vibrations and loads generated by the running of railway cars. was there.

By the way, the excavation replacement work requires excavation of the roadbed, which hinders the operation of the railway vehicle. Therefore, the sabotage may be cracked, ruptured, or a joint of the sabotage may occur. Even if it comes off, it is often left as it is, unless it causes a big problem, because of the difficulty in finding it.

[0004]

However, if the cracks are cracked, the tubes are broken, or the unsealed cuffs are left as they are, not only does it hinder the securing of water supply, but also the water flowing in the clefts. It is caught in, cracked, breached, and the water flowing from the place where the seam was removed, the earth and sand of the roadbed around the spill flows out into the sill,
There were problems such as the formation of cavities in the roadbed, which eventually caused a collapse accident.

By the way, in recent years, in the repair of sewerage,
Various repair methods using large machinery have been proposed, but the location where the sill is buried is often away from the main road, so it is used in the repair of sewers. It was difficult to use such a large-sized machine device for repairing the bow as it is.

[0006] In view of the above-mentioned problems relating to the bow, the present invention makes it possible to reduce cracks, tube breakages, and seams with no seams by using a small mechanical device without changing the cracks. An object of the present invention is to provide a method for repairing a sill that can be easily repaired at low cost.

[0007]

In order to achieve the above object, a method of repairing a sill according to the present invention is such that a slip sheet is inserted and laid in a sill buried under a railroad track, and folded on the slip sheet. It is characterized in that a tubular lining member is inserted, and then steam is sent into the lining member to swell, and the lining member is heated to cure and form a lining layer on the inner peripheral surface of the sill. And

In this method of repairing the sill, a slip sheet is inserted and laid in the sill buried under the track, a folded tubular lining member is inserted on the slip sheet, and then the lining member is inserted. While swelling by sending steam, the lining member is heated and hardened to form a lining layer on the inner peripheral surface of the sill, causing cracks, rupturing, or dislocation of the seam. Can be easily repaired without replacement. And, in particular, since steam is used to cure the lining member, there is little pressure loss and heat loss. Therefore, it is possible to install the steam supply source at a location away from the construction site. In addition, the machinery including the steam supply source can be downsized, and the construction time can be shortened further.Even if the construction site is far from the main road, the small machinery can be used to shorten the yield. It can be repaired in time. In addition, since the lining member is inserted through the slip sheet that has already been laid inside the basin, the lining member will not be cracked or the lining member will not be damaged by the sharp breakage of the broken tube. The member can be smoothly inserted into the bottom.

In this case, an embossed synthetic resin sheet can be used as the slip sheet.

[0010] As a result, the slip sheet is not damaged by cracks or the sharp breaks of the broken tube and the slip property is improved. Therefore, the slip sheet can be smoothly inserted and laid in the box. You can

The lining member may be a thermosetting resin-impregnated tube having a composition in which the elongation rate in the circumferential direction is larger than that in the longitudinal direction, and preferably, the elongation rate of the formed lining layer is high. A thermosetting resin-impregnated tube having a longitudinal direction of the lining member of 1% or less and a circumferential direction of 5% or more is used.

As a result, the thickness defect due to the pulling in of the material is eliminated, and along the inner peripheral surface of the sill which is cracked, deformed by rupturing the tube, or dislocated due to the seam being removed. The lining layer can be formed, and the uneven state of the inner peripheral surface of the sill can be relaxed and smoothed.

Further, a composite pipe in which the outer surface of a flexible metal pipe is coated with a synthetic resin can be used for the drain discharge hose inserted from the end plates that close both ends of the lining member.

As a result, the flexible metal tube has a straight-line property when the drain discharge hose is inserted, and is cracked, deformed by rupturing the tube, or dislocated due to the seam coming off. The drain accumulated on the inner bottom of the lining layer formed on the inner surface of the sill can be reliably discharged, and the drain discharge hose can be wound up on a construction vehicle, etc., if necessary. Will be good. Further, the rise in temperature of the surface of the drain discharge hose due to the circulation of the drain can be alleviated, and the safety of the worker can be secured.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a sill repair method according to the present invention will be described below with reference to the drawings.

The railroad track R is usually laid on the roadbed B on a roadbed formed by raising ballast to a predetermined thickness so as to absorb vibrations, noises, etc. from sleepers to which the track R is fixed. ing. Then, in order to secure water usage on both sides of the roadbed B and to drain rainwater and the like, a recess 1 is embedded in the roadbed B so as to cross the roadbed B at a predetermined interval.

By the way, since the sill 1 has been made of ceramics for a long time, and as a result, as shown in FIG. Upon receiving it, it sometimes cracked, ruptured, or sometimes the joint between the protuberances 1 came off.

The method of repairing a sagging according to the present invention is for easily repairing such a crack 1 that is cracked, ruptured, or has a seam removed, without replacing the sag 1. An example of the process will be described with reference to FIGS.

First, the protuberance 1 causes cracks,
In order to investigate whether or not the pipes are broken or the joints between the recesses 1 are disengaged, the inside of the recess 1 is cleaned using the high-pressure cleaning car C1 (FIG. 1 (1)).

Next, for example, an inspection vehicle C2 equipped with a TV camera is used to inspect the inside of the sill 1 and the sill 1 is cracked, ruptured, or the joint between the sill 1 is removed. It is inspected whether it is not (Fig. 1 (2)).

Then, the slip sheet 3 is inserted and laid in the sill 1 that has been cracked, ruptured, has a seam removed, and needs repairing (FIG. 1 (3)).

This slip sheet 3 is liable to be cracked or broken due to the sharp breakage portion 11 of the inferior basin 1.
In order to allow the lining member 2 made of a thermosetting resin-impregnated tube described later to be smoothly inserted into the sill 1 without being damaged, the lining member 2 is laid in advance in the sill 1. , Therefore slip sheet 3
Is a slippery material that improves sliding with the lining member 2, for example, a synthetic resin sheet such as polyethylene, polypropylene, nylon, etc., and has a sharp breaking portion 11 of the basin 1 that is cracked or ruptured. Therefore, it is possible to use a sheet having at least a back surface embossed so that the slip sheet 3 is not damaged and the slip property is good, and the slip sheet 3 can be smoothly inserted and laid in the indent 1. desirable. In addition, by laying the slip sheet 3 in the recess 1 in this way,
The unevenness on the bottom of the inner peripheral surface of the bow 1 can be alleviated.

Next, the lining member 2 made of a thermosetting resin-impregnated tube carried by the carrier C3 is inserted onto the slip sheet 3 laid in the bottom 1 (see FIG. 1).
(4)) Cut at a position near the opening of the sill 1

The thermosetting resin-impregnated tube as the lining member 2 is used so that it can be easily inserted from the opening of the sill 1, for example, as shown in FIG. . Further, the lining member 2 is
It is possible to use a thermosetting resin-impregnated tube having a composition in which the elongation rate in the circumferential direction is larger than that in the longitudinal direction, and the elongation rate of the formed lining layer is preferably 1% in the longitudinal direction of the lining member. Hereinafter, a thermosetting resin-impregnated tube having a circumferential ratio of 5% or more is used. As a result, as shown in FIG.
The lining member 2 can be hardened in a closely contacted state along the inner peripheral surface of the sill 1 that is deformed by rupturing the tube or is displaced due to the joint being disengaged. A lining layer can be formed on the inner peripheral surface of the. And, in particular, the strength in the longitudinal direction is large,
By using the lining member 2 having a small elongation rate, as shown in FIG. 5 (A), the thickness defect due to the pulling in of the material is eliminated, and cracks are formed, or the pipe is deformed by rupturing, or the joint is broken. It is possible to alleviate the uneven state of the sill 1 that is displaced due to the disengagement, and smooth the surface. As a result, the drainage generated when the lining member 2 is heated by the steam can be smoothly drained, and the drainage path that crosses the roadbed B can be reliably ensured. The lining member 2 may be a thermosetting resin-impregnated tube that has been conventionally used in the repair of sewerage.
In this case, since chemical resistance is not so required, a low-priced thermosetting resin-impregnated tube obtained by impregnating a general-purpose polyester fiber with a general-purpose unsaturated polyester resin can be used.

Then, plug devices 4 are attached to both ends of the lining member 2 cut at the position of the opening of the sill 1 (FIG. 2 (5)), and the controller 91 is operated from the construction vehicle C4 equipped with the steam generator. High-temperature steam whose temperature has been adjusted is fed into the lining member 2 through one plug device 4, and the lining member 2 is swollen and hardened by heating to line the inner peripheral surface of the sill 1. A layer is formed (FIG. 2 (6)). An exhaust 92 is connected to the other plug device 4 mounted on the lining member 2,
The air (water vapor) in the lining member 2 is discharged. Here, since high-temperature steam is used to cure the lining member 2, pressure loss and heat loss are small. Therefore, the construction vehicle C4 equipped with a steam generator that is a steam supply source is installed. In addition to being able to be installed at a place away from the construction site, for example, a place about 300 m away, it is possible to downsize the mechanical device including the steam generator, and further to shorten the construction time. Specifically, for example, heating with steam and curing time can be set to about 2 to 3 hours, and even if the construction site is away from the main road, a small mechanical device, for example, 3
It is possible to repair the sill in a short time by using a plurality of construction vehicles if necessary for t or less.

As shown in FIGS. 6 to 8, the plug device 4 is arranged at both ends of a lining member 2 made of a thermosetting resin-impregnated tube inserted into the bottom 1 and one plug device 4 is provided. Via the conduit 6 and the controller 91,
Connected to the steam generator mounted on the construction vehicle C4 to supply high-temperature steam into the lining member 2 from one end of the lining member 2, and the other plug device 4 via the pipe line 7.
It is connected to the exhaust 92 and is for discharging the air (water vapor) in the lining member 2 from the other end of the lining member 2, and is formed in a tubular body 42 having an end face plate 41 at the end.

The end plate 41 has a vent hole 44 for supplying high-temperature steam or discharging air, and a plurality of discharge holes for discharging condensed water of steam (herein referred to as "drain"). The drain discharge ports 45a and 45b and, if necessary, a mounting portion 46 for the temperature sensor and the pressure sensor for measuring the temperature and pressure inside the lining member 2.
a and 46b are formed. In addition, the ventilation port 44 is connected to the connecting pipe 4
7, the pipe line 6 connected to the controller 91 or the pipe line 7 connected to the exhaust 92 is connected. Further, in the present embodiment, one drain discharge port 45a is provided below the end plate 41 as a drain discharge port,
Further, two drain discharge ports 45b are provided at symmetrical positions slightly above the middle, but the position and number of the drain discharge ports can be arbitrarily increased or decreased, and the number thereof is also limited. There is no such thing. Also,
The drain discharge ports 45a and 45b (which may be provided in the sensor mounting portions 46a and 46b, if necessary) are provided with the hose insertion cap 5 so that the drain discharge hose 8 can be hermetically inserted. To do.

As shown in FIG. 7, the hose insertion cap 5 is arranged at the drain discharge ports 45a and 45b of the end face plate 41 via a cylindrical male screw portion 56 formed on the base portion 51. A cylindrical main body 52 is integrally formed on the base 51, and a male screw 53 is engraved on the outer peripheral surface of the main body 52, and the inner peripheral surface of the main body 52 is formed with a tapered hole having a small diameter on the base 51 side. A sealing member 54 made of silicone resin or another material is arranged along the inner peripheral surface of the tapered hole, and the drain discharge hose 8 is inserted into the tapered hole and the drain discharge ports 45a and 45b. The outer peripheral surface of the drain discharge hose 8 is sealed by screwing the cap nut 55 into the.

The cylindrical body 42 has a circular outer peripheral surface,
A ridge 43b that locks the end of the lining member 2 is formed in cooperation with the fastener 43a.

The drain discharge hose 8 is fixed so that its tip comes into contact with the bottom of the inner peripheral surface of the lining member 2 at a predetermined position in the longitudinal direction. As shown in FIG. 8, a soft synthetic resin pipe body, for example, a silicone rubber hose 81 is connected to at least a tip portion of the drain discharge hose 8 through a pipe joint 83. A suction port 82, which is made of metal and acts as a weight, is provided at the tip of the drain outlet hose 8 by the action of the suction port 82 and the silicone rubber hose 81.
Is in contact with the inner bottom surface of the lining member 2 so that the drain accumulated on the inner bottom surface can be surely sucked and discharged to the outside of the pipe.

For the drain discharge hose 8, a composite pipe in which the outer surface of a flexible metal pipe 8b such as copper or aluminum is covered with a synthetic resin 8a such as polyester, polyethylene or polyvinyl chloride is used. Is preferred. As a result, the flexible metal tube 8b has a straight-line property when the drain discharge hose 8 is inserted, and is cracked, deformed by rupturing the tube, or dislocated by the seam coming off. The drain accumulated in the inner bottom portion of the lining layer formed on the inner peripheral surface of the sill 1 can be reliably discharged, and the drain discharge hose 8 can be wound around the construction vehicle C4 or the like as necessary, Good handleability. Further, the rise in temperature of the surface of the drain discharge hose 8 due to the circulation of the drain can be alleviated, and the safety of the worker can be secured.

After hardening the lining member 2 by heating to form a lining layer on the inner peripheral surface of the sill 1,
The plug device 4, various pipe lines 6 and 7, the drain discharge hose 8 and the like are removed, and as shown in FIG.
Aligned with the opening of the bottom 1 and cut it to finish the desired finish 1
The end face is processed by using 0, and the construction state is inspected by, for example, a TV camera, and the repair of the sill 1 is completed (FIG. 2 (7)).

[0033]

According to the method of repairing a sill of the present invention, a slip sheet is inserted and laid in a sill buried under a track, and a folded tubular lining member is inserted on the slip sheet. , Then, while sending steam into the lining member to swell, by curing the lining member by heating to form a lining layer on the inner peripheral surface of the sill, cracking or rupturing, It is possible to easily repair the disjointed protuberance without replacing it. And, in particular, since steam is used to cure the lining member, there is little pressure loss and heat loss. Therefore, it is possible to install the steam supply source at a location away from the construction site. In addition, it is possible to downsize the mechanical device including the steam supply source, and further, it is possible to shorten the construction time, even if the construction site is far from the main road, using a small mechanical device, Props can be repaired in a short time. In addition, since the lining member is inserted through the slip sheet that has already been laid inside the basin, the lining member will not be cracked or the lining member will not be damaged by the sharp breakage of the broken tube. The member can be smoothly inserted into the bottom. This makes it possible to repair the sill at a low cost and easily without hindering the operation of the railway vehicle, ensuring a drainage path that crosses the roadbed, and ensuring that both sides of the roadbed are secured. It is possible to secure water usage and drain rainwater.

Further, by using an embossed synthetic resin sheet as the slip sheet, the slip sheet can be bent without cracking or being damaged by the sharp break of the broken tube. It can be smoothly inserted and laid inside.

Further, the lining member has a greater circumferential elongation than the longitudinal direction, preferably, the lining member has a longitudinal elongation of 1% or less and a circumferential elongation of 5% or more. By using the thermosetting resin-impregnated tube with the composition of No. 1, there is no thickness defect due to the drawing of the material, and cracks occur, deformation occurs by rupturing the tube, and misalignment occurs due to detachment of seams. The lining layer can be formed along the inner peripheral surface of the recess and the unevenness of the inner peripheral surface of the recess can be relaxed and smoothed. As a result, the drainage generated when the lining member is heated by the steam can be smoothly drained, and a drainage channel that crosses the roadbed can be reliably secured.

Further, by using a composite pipe in which the outer surface of a flexible metal pipe is covered with a synthetic resin for the drain discharge hose inserted from the end face plates that close both ends of the lining member, The metal pipe with a straight line has straightness when the drain discharge hose is inserted, and is formed on the inner peripheral surface of the sill that is cracked, deformed by rupturing the tube, or displaced due to the seam coming off. The drain accumulated in the inner bottom portion of the lining layer can be surely discharged, and the drain discharge hose can be wound around a construction vehicle or the like as required, and the handleability is improved. Further, the rise in temperature of the surface of the drain discharge hose due to the circulation of the drain can be alleviated, and the safety of the worker can be secured.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing steps of a method for repairing a bind-off of the present invention.

FIG. 2 is an explanatory view showing a step of the method for repairing a bow of the present invention.

3A and 3B show a relief to be repaired, where FIG. 3A is a cross-sectional view before repair and FIG. 3B is a cross-sectional view after repair.

FIG. 4 is a sectional view showing a state in which a lining member is folded.

FIG. 5 is a cross-sectional view of the repaired sill, (A) shows a case where a lining member having a small longitudinal elongation is used,
(B) shows the case where a lining member having a large elongation in the longitudinal direction is used.

FIG. 6 is a cross-sectional view of a sill to be repaired.

FIG. 7 shows a plug device for a lining member according to the present invention,
(A) is a side view and (B) is a sectional view.

FIG. 8 is a sectional view of a hose insertion cap.

FIG. 9 is an explanatory diagram of a method of treating the end surface of the lining member.

[Explanation of symbols]

B roadbed 1 prone 2 lining members 3 slip sheets 4 plug device 5 Hose insertion cap 6 Pipeline for steam supply 7 Steam exhaust line 8 Drain discharge hose

─────────────────────────────────────────────────── ─── Continuation of front page (73) Patent holder 000108719 Takiron Co., Ltd. 2-33-1 Azuchi-cho, Chuo-ku, Osaka-shi, Osaka (72) Inventor Norihisa Tanibata 1-1, Mei-eki, Nakamura-ku, Nagoya-shi, Aichi No. 4 Tokai Passenger Railway Co., Ltd. (72) Inventor Soichi Kachi 1-1-4 Mei Station, Nakamura-ku, Nagoya-shi, Aichi Prefecture Tokai Passenger Railway Co., Ltd. (72) Inventor Makoto Majima Nakamura-ku, Nagoya, Aichi Prefecture Meieki 1-4-1 Tokai Passenger Railway Co., Ltd. (72) Inventor Masatoshi Kokubo 1-4-1 Meieki Nakamura-ku, Aichi Prefecture Nagoya Station Tokai Passenger Railroad Co., Ltd. (72) Inventor Hiroshi Shibuya Tokyo 3-3-3 Toyosu, Koto-ku, Kawatetsu Information System Co., Ltd. (72) Inventor Shigeyuki Aikawa 2-14-9 Tonyacho, Maebashi-shi, Gunma Stock company Aikawa management (72) Inventor An Satoshi I, 2-3-13 Azuchi-cho, Chuo-ku, Osaka, Japan (56) References JP-A-62-132630 (JP, A) JP-A-8-127068 (JP, A) JP-A-8 -219365 (JP, A) JP-A-9-155978 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B29C 63/00-63/48 E01B 1/00-26/00 F16L 1/00-1/26

Claims (5)

(57) [Claims] 1. A slip sheet is inserted and laid in a recess buried under a railway, a folded tubular lining member is inserted on the slip sheet, and then steam is sent into the lining member to swell. A method for repairing a sill, characterized in that the lining member is heated and cured while being cured to form a lining layer on the inner peripheral surface of the sill. 2. The method for repairing a bind-off according to claim 1, wherein an embossed synthetic resin sheet is used as the slip sheet. 3. The siding repair according to claim 1, wherein the lining member is a thermosetting resin-impregnated tube having a composition having a greater circumferential elongation than the longitudinal direction. Method. 4. The method for repairing a shackle according to claim 3, wherein the elongation rate of the formed lining layer is 1% or less in the longitudinal direction of the lining member and 5% or more in the circumferential direction. 5. A composite pipe in which an outer surface of a flexible metal pipe is coated with a synthetic resin is used for a drain discharge hose inserted from an end face plate closing both ends of a lining member. The method for repairing a bow according to Item 1, 2, 3 or 4.