JP2001040603A - Method and apparatus for repairing ballast directly connected to sleeper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and an apparatus for easily repairing lift of a sleeper of ballast which is directly connected to the sleeper, in a railroad. SOLUTION: In repairing of railroad ballast which is formed by burying a sleeper 1 in ballast concrete 2, the repairing method is comprised of a step of sealing 8 a connection gap 7 between the peripheral surface of the sleeper 1 and the ballast concrete 2, a step of boring a plurality of linking holes 9 from the upper surface of the sleeper 1 to the ballast concrete 2, a step of injecting an adhesive into the linking hole 9 and then through the linking hole 9 into a gap between the lower surface of the sleeper 1 and a sleeper-facing surface of the ballast concrete 2, a step of inserting an anchor 10 into the linking hole 9 to seal the same, and a step of curing the adhesive. To implement the method, the repairing apparatus is obtained by arranging an adhesive injecting device on a chassis traveling on an orbit of a railroad. The adhesive injecting apparatus is formed of a tank, a nozzle connected thereto via a hose, and an elevating means for ascending/descending the nozzle. The nozzle is positioned at a linking hole upper portion of the sleeper in an ascendable/ descendable manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a device for repairing a sleeper directly connected to a sleeper, and more particularly to a method and a device for repairing a sleeper directly connected to a sleeper which can fix floating of a sleeper from a roadbed concrete in a short time. .

[0002]

2. Description of the Related Art The sleeper floor directly connected to sleepers is laid all over the country centering on the subway, and has great advantages such as almost no track deviation, easy maintenance and good drainage, but it is difficult to replace members and noise. There are also disadvantages such as large. Although a solution to this disadvantage has been developed, renovation of the old-fashioned sleeper track directly connected to it has already required enormous costs, and to some extent it must be repaired.

As shown in FIG. 2, a pair of RC short sleepers 1 and 1 are integrally buried on a horizontally long roadbed concrete 2 in accordance with the rail width. The RC short sleeper 1 is made of reinforced concrete and is directly connected to the roadbed concrete 2 by the anchors 12, 12. This RC short sleeper 1 is separated from the roadbed concrete 2 with time, and rises. In order to repair this, a method such as driving an anchor bolt from the RC short sleeper 1 into the roadbed concrete 2 has been taken.

[0004]

[0009] Even if the anchor bolt is driven, there is a problem in that slack is caused by bending of a wheel running on a rail by up and down movement, and bending or cutting is caused. In addition, the subway works in a tunnel, and in order to replace sleepers, crushing must be performed. Not only is there a major problem in terms of health care, but disposal and disposal are also difficult. Have big problems such as pollution. SUMMARY OF THE INVENTION The present invention has been developed in view of the above circumstances, with an object of providing a method and a device for repairing a sleeper directly connected track floor, which can easily and robustly fix a sleeper having a lift. It is.

[0005]

Means for Solving the Problems The present invention has taken the following technical means to solve the above problems and achieve the object.

[0006] That is, as a main structure, in repairing a railway trackbed in which sleepers are buried in bedrock concrete, a step of sealing a joint gap between a peripheral surface of the sleeper and the bedrock concrete, and a step of removing the floorbed concrete from the upper surface of the sleeper A step of drilling a plurality of connection holes, filling the connection holes with an adhesive, filling the gap between the lower surface of the sleeper and the facing concrete between the connection holes from the connection holes, and inserting an anchor into the connection holes. And a method for repairing the sleeper directly connected to the sleeper, which is a combination of a step of sealing the connection hole by using a method and a step of curing the adhesive.

As a specific detail, the filling of the adhesive is performed by press-fitting from one connection hole, and the adhesive passing through the facing gap between the lower surface of the sleeper and the roadbed concrete reaches another connection hole and is filled. And a method for repairing a sleeper directly connected to a sleeper.

A method for repairing a sleeper bed directly connected to sleeper, wherein the adhesive is a two-part reactive epoxy resin.

[0009] As a device, a pair of piercing tools for piercing from a sleeper to a roadbed concrete is provided on a vehicle body running on a railroad track, and a pair of piercing tools are disposed across a rail, and a pair of piercing tools are lifted up and down by a lifting means. Device.

[0010] An adhesive filling device is provided on a vehicle body traveling on a railroad track. The adhesive filling device includes a tank, a nozzle connected to the tank, and a lifting means for raising and lowering the nozzle. A sleeper repair device configured such that the nozzle is located above the connection hole of the sleeper from above the vehicle body and is configured to be able to move up and down,

Alternatively, an uncassette device is provided on a vehicle body traveling on a railroad track, and the uncassette device is provided with a feeder, a guide tube connected to a lower portion thereof, and an opening / closing device provided on the guide tube. Sleeper repair device, which is configured so that the guide pipe is located above the connection hole of the sleeper from above the vehicle body and one anchor is inserted into the connection hole when the switch is opened. , And can be.

The vehicle body may be provided with a position identification sensor for identifying the position of the sleeper, and the power of each movable portion is automatically controlled by a detection signal of the sensor.

[0013] A non-destructive scratch detector for non-destructively inspecting scratches on sleepers and roadbed concrete can be provided below the vehicle body.

[0014]

The present invention configured as described above has the following operation.

[0015] In the method, when two connection holes reaching the bed concrete from the rising sleeper requiring repair are drilled, if there is a gap between the lower surface of the sleeper and the bed concrete, the two connection holes are connected by the gap. Will be.

When the adhesive is pressed in from one connection hole, the adhesive reaches the other connection hole through the gap between the sleeper bottom surface and the roadbed concrete. In this case, since the gap between the peripheral surface of the sleeper and the joint of the roadbed concrete is sealed, the gap under the seal is filled with an adhesive to reach the upper part of the connection hole.

When an anchor is inserted into the connection hole to cure the adhesive, the anchor connects the sleeper and the roadbed concrete, and the lower surface of the sleeper and the roadbed concrete are firmly bonded. As a result, the sleeping sleepers are firmly fixed to the roadbed concrete without replacement.

[0018]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing the relationship between RC short sleeper 1 and roadbed concrete 2. FIG. 2 is a front view of the sleeper track directly connected to sleeper. RC short sleepers 1, 1 are buried and integrally formed at both ends in the lateral width direction of the roadbed concrete 2 in accordance with the width of the rail 4. Reference numeral 3 in the drawing is a washer, 5 is a pressing spring, and 6 is a fixing bolt.

In this construction method, RC short sleepers 1 are formed in advance of reinforced concrete, which is arranged on the ground, and a cement mixture is cast to form roadbed concrete 2. The sleeper 1 and the roadbed concrete 2 are integrally formed. However, since foreign matters are combined with a cement mixture, a minute gap is generated at the joint surface between the sleeper 1 and the roadbed concrete 2 with evaporation of water.

Therefore, the tapping vibration from the rail 4 accompanying the passage of the vehicle with time causes separation between the connecting surfaces of the sleeper 1 and the roadbed concrete 2, and the connecting surfaces due to the intrusion of water droplets and freezing, etc. The gap between them becomes large, and the sleeper 1 rises.

As a repair method, as shown in FIG. 1, a gap 7 between a joint surface between the sleeper 1 and the roadbed concrete 2 is used.
Is filled with a sealing material 8 to complete the sealing. As the sealing material 8, for example, a quick-setting cement, a bonding material, or the like that hardens in about 10 minutes is used.

As the bonding material, for example, carboxymethylcellulose, sodium metasilicate and calcium chloride, each of which is mixed with 0.2 to 0.4% by weight of cement and water-soluble, can be used.

The carboxymethylcellulose is water-soluble and has high adhesiveness, uniformly penetrates between the fine particles of the cement, and the cellulose molecules are bundled and arranged densely to form fine crystals (micelles). In this micelle, there is no gap into which even water molecules are interrupted, thereby enhancing the bonding. Sodium metasilicate is hydrolyzed to form a syrup (water glass), penetrates between cement fine particles, promotes hydrogen bonding, and enhances the solidifying action of cement. Calcium chloride has the effect of rapidly binding the calcareous and siliceous components of the cement, and solidifies the cement in a short time after hydrolysis.

Next, in FIG. 1, boring from the top to the roadbed concrete 2 is made at the upper longitudinal end edges of the sleeper 1 to form connection holes 9 and 9. The diameter of the connection holes 9, 9 is, for example, 13 mm and the depth is about 200 mm.

Next, an adhesive is pressed into the connection hole 9 from one side. As the adhesive, for example, a two-pack type epoxy adhesive (for example, Alpron W-201 = Japanese-American resin) is used for wet surfaces in water and cured for 24 hours.
And a compressive strength of N / mm ^2. The pressure to be press-fitted is, for example, about 0.5 to 2 kg, and is adjusted according to the degree of the gap between the joint surface between the lower surface of the sleeper 1 and the roadbed concrete 2 and the like.

The adhesive press-fitted from the connection hole 9 is filled into the adjacent connection hole 9 through the gap 11 between the connection hole 9 and the contact surface between the lower surface of the sleeper 1 and the roadbed concrete 2 in contact with the adhesive. . In this case, if necessary, an air vent hole is formed in a part of the gap 7, and when the adhesive overflows,
Seal the air vent.

When the connection hole 9 is filled with the adhesive, the threaded anchor 10 is dropped into the connection hole 9. The anchor 10 is, for example, made of iron and has a diameter of about 8 mm and a length of about 200 mm. Thereafter, the upper ports of the connection holes 9 are sealed.

After curing for about 24 hours, the adhesive hardens, and the sleeper 1 and the roadbed concrete 2 are connected by the anchor 10, and the lower surface of the sleeper 1 and the roadbed concrete 2 are joined by an adhesive at the contact surface. Since they are bonded, they do not float and are completely fixed.

The materials of the sealing material and the adhesive are not limited to the above examples, but can be appropriately selected according to the purpose.

FIG. 3 is a schematic side view of the sleeper repairing apparatus, and FIG. 4 is a schematic plan view. Body 1 of sleeper repair device 13
4 is a flanged wheel 15 that can run on the rail 4.
, And the wheels 15 can be configured to be movable by a motor (not shown).

A punching device 16 is provided at the upper front of the vehicle body 14. In the punching device 16, a pair of piercing tools 18, 18 is arranged on a lifting support 17 so as to be able to move up and down by lifting means 19.

When the vehicle body 14 is on the rail 4 as shown in FIG.
Is located in the middle and is disposed so as to sandwich it. The driving system 18A of the perforators 18, 18 may be any type such as an electric motor, a hydraulic motor, and a pneumatic motor.

The raising and lowering means 19 may be of any type, but the drawing illustrates a hydraulic cylinder such as a hydraulic pressure or an atmospheric pressure. A fluid pressure device (not shown) is connected to the fluid cylinder, and the elevation can be controlled by automatic control.

In FIG. 4, reference numeral 20 denotes a water tank;
Is a drip tube. As shown in FIG. 5, the tip of the drip tube 21 faces the tip of the drill 18B of the piercing tools 18, 18. The cock 21A of the water pipe 21 is
Automatic control linked with the lifting and lowering of the vehicle. The drip tube 21 can be flexible. In FIG. 5, reference numeral 22 denotes a position identification sensor.

The position identification sensor 22 identifies the position by detecting the difference in height when it comes over the fixing bolt 6, and can thereby set the tip of the drill 18B to a predetermined position to be drilled. it can. Therefore, the position identification sensor 2
The confirmation by 2 can be configured such that a detection lamp (not shown) is provided on the vehicle body 14 or an automatic brake is applied to the wheels 15.

In the above configuration, the vehicle body 15 is moved on the rail, positioned by the position identification sensor 22, and stopped. Then, the drill 1 of the piercing tool 18, 18
8B is lowered by the elevating means 19 while rotating, and the connection hole 9 is pierced in the sleeper 1 while dropping a water drop from the water pipe 21.

At the tip of the drill, a cutting whetstone containing diamond and other abrasive grains is formed. As a result, two connecting holes 9, 9 can be simultaneously drilled in the sleeper 1 in a short time. Elevating means 1 upon completion of drilling
9 automatically raises the piercing tools 18 and 18 and stops dripping.

Since the distance between the front and rear sleepers is set to 500 mm, the vehicle body 14 is moved 5
It can be configured to advance by 00 mm.

In FIG. 3, reference numeral 23 denotes an adhesive filling device. A nozzle 23B is vertically provided behind the tank 23A. The nozzle 23B is connected to the piercing device 18, 18 to 50.
It is arranged to be able to move up and down 0 mm rearward. That is, reference numeral 23C is a pressurizing pump, 23D is a guide, 23E is a rack, 23F is a screw, and 23G is a servomotor. The nozzle is not limited to a hard nozzle, and a flexible nozzle can be used.

In the above configuration, the position identification sensor 22 detects that the nozzle 23B has come over the connection hole 9 of the sleeper 1.
Can be detected by the same sensor. The nozzle 23B can be lowered by driving the motor 23G as a lifting / lowering means. By arranging a pressure-sensitive sensor at the tip of the nozzle 23B, it is possible to detect that the tip of the nozzle has reached the connection hole 9. Drive of the pressure pump 23C or the nozzle 2 according to the detection signal of the sensor
By opening the 3B automatic cock (not shown), the adhesive can be filled into the connection hole 9 from the nozzle 23B.

In order to detect that the connection hole 9 is filled with the adhesive, for example, an infrared sensor is provided above the adjacent connection hole 9 to check that the adhesive has risen to the upper portion of the connection hole. Can be detected. The cock can be automatically closed by the detection signal. At the same time wheel 1
5 can be configured to rotate and advance 500 mm.

In FIGS. 3 and 4, reference numeral 24 denotes an anchor 1
This is an uncassette device for automatically feeding 0 into the connection hole 9. The uncassette device 24 includes a feeder 24A, a guide tube 24B at a rear end thereof, and a switch 24C disposed on the guide tube 24B. The switch can be automatically controlled.

The tip of the guide tube 24B is connected to the connecting hole 9
In order to confirm that it is located above, the same position identification sensor 22 as described above can be used. At the same time as the position is confirmed, the automatic switch 24C is opened, and the anchor 10 in the feeder 24A descends to the single guide tube 24B and is inserted into the connection hole 9 therebelow.

This repair device having the above-mentioned structure can be used independently of a punching device, an adhesive filling device, and an uncassette device. In addition, an automatic type is provided by combining three devices with one truck. Can be By using this device, work can be performed in a short time of one third or less, and the work cost can be reduced to one half or less.

It should be noted that the present invention is not limited to the above-described embodiment, and the design can be appropriately changed according to the purpose. For example, it is possible to provide a nondestructive flaw detector or the like such as an ultrasonic wave at a lower portion of the vehicle body so as to be able to inspect the rising of the sleeper, the crack of the roadbed concrete and the like in advance.

[0046]

The present invention configured as described above has the following excellent effects.

By forming two connection holes from the sleeper to the roadbed concrete and pressing the adhesive in from one side, a sufficient adhesive can be filled also in the separation gap between the sleeper and the roadbed concrete. Thus, there is an effect that the sleeper and the roadbed concrete can be firmly bonded.

By drilling two connecting holes from the sleeper to the roadbed concrete and pressing the adhesive from one side, the two connecting holes are filled with the adhesive at a time and the space between the sleeper and the roadbed concrete is formed. There is an effect that a sufficient adhesive can be filled also in the separation gap.

Since the sleeper and the roadbed concrete are connected by the anchor and the sleeper and the roadbed concrete are bonded, the construction cost is reduced to less than half and the construction period is reduced to less than one third.

[0050] Unlike the conventional method, a sleeper crushing step is not required, so that it is excellent in health management in work in a tunnel, and since there is no crushed debris, problems such as transportation, disposal place, pollution, etc. There is an effect that does not occur.

The sleeper repair device can simultaneously pierce a plurality of connection holes in a short time at a time, fill the adhesive, and automatically bury the anchors in the connection holes. .

[Brief description of the drawings]

FIG. 1 is a front view of roadbed concrete and sleepers.

FIG. 2 is a front view of roadbed concrete and sleeper.

FIG. 3 is a side view of the sleeper repair device.

FIG. 4 is a plan view of the sleeper repair device.

FIG. 5 is a front view of the sleeper repair device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 sleeper 2 roadbed concrete 3 washer 4 rail 5 holding spring 6 fixing bolt 7 gap 8 seal 9 connecting hole 10 anchor 11 gap 12 anchor 13 sleeper repairing device 14 vehicle body 15 wheel 16 drilling device 17 lifting support 18 drilling tool 18A drive system Drill 19 Elevating means 20 Water tank 21 Drip tube 21A Cock 22 Sensor 23 Adhesive filling device 23A Tank 23B Nozzle 23C Pump 23D Guide 23E Rack 23F Screw 23G Motor 24 Uncassette device 24A Feeder 24B Guide tube 24C Switch

 ──────────────────────────────────────────────────続 き Continuing on the front page (74) One of the above agents 100060759 Patent Attorney Soichi Takezawa (two outsiders) (72) Inventor Norihide Kono 3 Shimonamigi, Kawasaki-ku, Kawasaki City Amizu Corporation (72) Invention Person Eiji Masuda 2-3-1 Shiohama, Kisarazu-shi Daiei Stock Company In-house (72) Inventor Ikuo Okitsu 1-13-13 Ginza, Chuo-ku, Tokyo F-term in Japan-US Resin Co., Ltd. 2D057 BA00 BA33

Claims (8)

[Claims] In a repair of a railway trackbed in which sleepers are buried in a concrete bed, a step of sealing a joint gap between a peripheral surface of the sleeper and the concrete bed, a plurality of connection holes from an upper surface of the sleeper to the concrete bed. And filling the connection hole with adhesive, filling the gap between the lower surface of the sleeper and the facing concrete from the connection hole with adhesive, and inserting an anchor into the connection hole to seal the connection hole And a step of curing the adhesive. 2. The filling of the adhesive is performed by press-fitting from one connection hole, and the adhesive that has passed through the facing gap between the lower surface of the sleeper and the roadbed concrete is also filled in the other connection hole. A method for repairing a sleeper directly connected to sleeper according to claim 1. 3. The method according to claim 1, wherein the adhesive is an epoxy resin. 4. A pair of piercing tools for piercing from a sleeper to a roadbed concrete are provided on a vehicle body running on a railroad track, and are provided so as to sandwich a rail, and are provided so as to be able to move up and down by means of raising and lowering means. Sleeper repair equipment. 5. An adhesive filling device is provided on a vehicle body traveling on a railroad track, the adhesive filling device includes a tank, a nozzle connected to a hose thereof, and an elevating means for elevating and lowering the nozzle. And the nozzle is located above the connection hole of the sleeper from above the vehicle body and is configured to be able to move up and down. 6. An uncassette device is provided on a vehicle body traveling on a railroad track. The uncassette device is provided with a feeder, a guide pipe connected to a lower portion thereof, and an opening / closing device provided on the guide pipe. The guide tube is arranged above the connection hole of the sleeper from above the vehicle body, and one anchor is inserted into the connection hole when the switch is opened. Sleeper repair equipment. 7. The vehicle according to claim 1, wherein a position identification sensor for identifying a sleeper position is provided on the vehicle body, and the power of each movable portion is controlled by a detection signal of the sensor. Item 6. A sleeper repair device according to any one of Items 5 and 6. 8. The non-destructive damage inspection device for non-destructively inspecting scratches of sleeper and roadbed concrete at a lower portion of the vehicle body. Sleeper repair equipment.