KR102037442B1 - Boring machine for reinforcing multiple layered embanked bed of rail - Google Patents

Abstract

The present invention relates to a boring machine for reinforcing a multi-layer embanked bed of a rail. According to the present invention, the boring machine comprises: an excavator having a main body unit movable along the rail and rotatable on a horizontal plane and an arm unit coupled to the main body unit to be moved in a vertical direction; a drilling unit vertically moved to drill the embanked bed, rotatably coupled to the excavator on a first plane parallel to the arm unit, and rotatable on a second plane crossing the first plane; and a posture adjustment unit enabling the drilling unit to be rotated on the first plane and the second plane.

Description

Boring machine for reinforcement of railway fillbed {BORING MACHINE FOR REINFORCING MULTIPLE LAYERED EMBANKED BED OF RAIL}

The present invention relates to repair and reinforcement technology of civil engineering structures, and more particularly, to a perforation equipment and a reinforcing method using the same for drilling a railway roadbed formed through fill.

Railroad fillet is formed by stacking a plurality of layers.

1 is a schematic cross-sectional view of a fillet roadbed for railways. Referring to FIG. 1, in the fill bed 9, a rock soil part 1 using coarse aggregates such as gravel is formed on the ground, and the soil soil part 2 which is packed with soil is stacked thereon. Reinforced roadbed layer (3) filled with aggregate again is stacked on the soil soil (2). A reinforced concrete layer 4 is generally laid on the reinforced roadbed layer 3, and a reinforced concrete layer 5 is provided thereon. Finally, a sleeper (not shown) and a rail 6 are installed on the reinforced concrete layer 5.

As described above, the railway subgrade is stacked with different materials to form a multilayer structure. In FIG. 1, the soil subgrade is composed of a rock soil 1, a soil soil 2, a reinforced roadbed 3, and the like, but the soil may be composed of more layers depending on the condition or conditions of the ground. Similar to railway roadbeds, roadbeds for highways also have a multi-layered structure in which heterogeneous materials are sequentially stacked.

Filled roadbed is not enough compaction at the time of installation, or if the construction is in a hurry, the problem of the height and strength at the time of design, the roadbed is often settled. In addition, even if there is no problem in the construction process, in the case of long-term use, the freezing and melting process repeatedly freezes and melts depending on the season, the compaction of the fill area is reduced and softened, settlement may occur.

As described above, when the sedimentary subgrade settlement occurs, the height of the railway rail is changed, which acts as a risk factor for the safe operation of the railway. Therefore, it is necessary to reinforce the weakened parts along with daily monitoring of the fillbed. The reinforcement of the railway roadbed is made by injecting grout material with cement as the main material after forming a hole in the reinforcement part.

Reinforcement of railway roadbeds involves two difficulties.

First, due to the special environment of railroads, it is difficult to move heavy mills to the point where reinforcement is needed. Not only are roads adjacent to railroads often adjacent, but railroad protection facilities act as obstacles even when roads are adjacent, and the access road is very difficult because the fillet roadbed rises upward. If roads are not used, drilling equipment must be moved through railroad rails, and specialized track cars that repair railroads lack capacity, size, and power to fit heavy mills.

The railway roadbed reinforcement must be done quickly in the time when the train is not over, but it is difficult to transport and install the drilling equipment.

The second problem is due to the fact that Sungtoban is stacked in multiple layers of different materials. In other words, the same grout material is injected into each layer without reflecting its characteristics even though the materials of each layer of the fillbed are different. Dark soil layer made of coarse gravel is large pores are formed so that the injection of grout material is smooth, but soil soil layer may not be smoothly penetrated the grout material. If the soil is not smoothly injected into the soil layer, the injection pressure is increased by increasing the injection pressure. Split injection refers to a method in which the grout material is pushed to a high pressure to attempt to inject while forming cracks in the roadbed. Split injection is not preferable because cracking occurs in the fillbed.

The present invention is to solve the above problems, it is not only easy to move in the track, but also to provide a drilling equipment that can perform the drilling at various angles and postures depending on the reinforcement site.

In addition, in the present invention, after performing the drilling by using the above-mentioned drilling equipment, it is an object to provide a filling subgrade reinforcement method can improve the reinforcing efficiency by injecting different grout material for each layer of the fillet subgrade.

On the other hand, other objects not specified in the present invention will be further considered within the scope that can be easily inferred from the following detailed description and effects.

According to an aspect of the present invention, there is provided a railroad santoban drilling equipment, an excavator having a main body rotatable in a horizontal plane, a rotatable arm coupled to the main body and movable up and down; A drilling unit rotatably coupled to the excavator and rotatable on a first plane parallel to the arm, the drilling unit being movable in a vertical direction and rotatable on a second plane intersecting the first plane; And a posture adjusting unit configured to rotate the drilling unit on a first plane and a second plane.

According to the present invention, respectively coupled to the front and rear of the main body of the excavator, a pair of rollers each rolling contact with the rails on both sides of the rail, and formed on the mutually opposite side of the pair of rollers and the rollers It is preferable to further provide a guide roller having an annular flange formed to protrude so as to prevent the rail from being separated from the railway rail.

Here, the guide roller is movable up and down by a cylinder, the guide roller may be moved up and down in contact with the rail or spaced apart by the operation of the cylinder.

In one embodiment of the present invention, the posture adjusting unit has a first cylinder rotatably coupled to the excavator, one end is rotatably coupled to the drilling unit, the protrusion of the piston of the first cylinder and Upon insertion the drilling unit is rotatable on the first plane.

In addition, the posture adjusting unit has a second cylinder rotatably coupled to one side of the excavator, the other end is rotatably coupled to the drilling unit, the drilling unit according to the protrusion and insertion of the piston of the second cylinder Is rotatable on the second plane.

In the present invention is equipped with a drilling unit in the excavator, it is possible to safely pass on the railroad by modifying the excavator has the advantage of easy access to the railway fillet road required maintenance reinforcement.

Above all, in the present invention, since the perforator is rotatable in the XY plane, the YZ plane and the XZ plane on the Cartesian coordinate system, and the height is also adjustable, there is an advantage that the perforator can be freely set to a desired angle and posture. Through this, it is possible to smoothly and quickly perform the reinforcement by precisely drilling the area requiring the reinforcement.

On the other hand, even if the effects are not explicitly mentioned herein, it is added that the effects described in the following specification and the provisional effects expected by the technical features of the present invention are treated as described in the specification of the present invention.

1 is a schematic cross-sectional view of a fillbed roadbed for railway.
2 is a schematic side view of a drilling tool according to the present invention.
3 is a view showing the drilling equipment shown in FIG. 2 from the front, showing only a drilling unit.
4 is a schematic rear view for explaining the guide roller of the drilling equipment shown in FIG.
5 is a cross-sectional view showing a state in which the guide roller shown in FIG. 4 is mounted on a rail.
Figure 6 is a view from the front of the track to explain the change in attitude of the drilling unit on the first plane of the drilling equipment.
FIG. 7 is a view from the side of the railway line for explaining the change in posture of the drilling unit on the second plane of the drilling rig
8 is a schematic plan view from above to illustrate the reinforcement radius of the drilling machine.
9 is a cross-sectional view showing a state in which a perforation hole is formed in a fill bed and a multi-channel injection tube is installed.
10 is a cross-sectional view illustrating a state in which different injection materials are injected for each layer of the fillbed.
The accompanying drawings show that they are illustrated as a reference for understanding the technical idea of the present invention, by which the scope of the present invention is not limited.

The present invention relates to a drilling equipment used to drill railroad fillet roadbed. Although described in the prior art, in order to inject and reinforce the grout material in the fillet, the drilling must be performed first. Due to the special environment of the railway, the drilling device is not easily transported, and drilling equipment suitable for the railway environment has not been provided. The present invention is to provide a device that is movable in the track, and can drill the fill roadbed in various postures and angles.

In other words, in the present invention, the excavator is used to transport the railway to be used as a transport equipment, and the drilling machine is mounted on the excavator to provide drilling equipment that can perform drilling at various postures and angles.

The present invention is mainly intended for use in railway fillets, but it is noted that the present invention is not necessarily applied only to railway roadbeds and can also be used in general roadbeds.

Hereinafter, with reference to the accompanying drawings, it will be described in more detail with respect to the railway santoban drilling equipment (hereinafter referred to as 'puncture equipment') according to an embodiment of the present invention.

In the following description of the present invention, when it is determined that the subject matter of the present invention may be unnecessarily obscured by the person skilled in the art with respect to the related well-known functions, the detailed description will be omitted.

Figure 2 is a schematic side view of the drilling equipment according to the present invention, Figure 3 is a front view of the drilling equipment shown in Figure 2, showing a drilling unit only, Figure 4 is a guide roller of the drilling equipment shown in Figure 2 It is a schematic rear view for demonstrating, FIG. 5 is sectional drawing which shows the state which the guide roller shown in FIG. 4 mounted on the rail.

Referring to the drawings, the drilling equipment 100 according to the present invention is equipped with an excavator 50 and a drilling unit (60).

Excavator 50 is utilized as a transfer equipment. The excavator 50 includes a main body 10 and an arm 40. The main body 10 has a frame 20 to which the wheel 11 is mounted. Some excavators are provided with caterpillars instead of wheels, but in this example, excavators with wheels are used because of concerns about the feedrate and the possibility of damage to the track. The upper part of the frame 20 is coupled to the rotatable body portion 30 along a horizontal plane. The arm portion 40 is connected to a plurality of segments in a link structure and is movable in the vertical direction by a cylinder-piston (not shown). Bucket is attached to the end of the arm portion 40, but the equipment is not intended for excavation, it is common to use the bucket in a separated state. Excavator 50 is a well-known equipment, so a detailed description thereof will be omitted.

Since the distance between the wheels of the excavator 50 substantially coincides with the distance between the railway tracks r, as shown in FIG. 5, the excavator 50 may be mounted on the railway tracks r and run over the railway tracks. However, the excavator 50 may leave the track r due to the carelessness of the user. In this embodiment, the danger is prevented through the guide roller. Guide rollers are respectively installed on the front and rear of the excavator (50).

The guide roller has a pair of roller portions 21 and a connecting shaft 22 for connecting the roller portions 21. A pair of roller portion 21 is mounted on the rail (r) is in contact with the track (r) when the excavator moves. An annular flange portion 23 is provided on the opposite inner surface of the pair of roller portions 21. As shown in FIG. 5, the flange portion 23 has a larger radius than the roller portion 21 so that the flange portion 23 can extend to the side surface of the rail line r. Since the flange part 23 faces each inner side surface of the track r, the excavator 50 is prevented from leaving track.

Since the guide roller is used only when traveling on railroads, it should be able to change its position upward so that it does not come into contact with the ground. To this end, in this embodiment, as shown in FIG. 4, a pair of cylinders 24 is provided. One end of the cylinder 24 is coupled to the excavator 50 so as to be pivotable in place with respect to the rotation axis 26. The cylinder 24 is a two-port hydraulic cylinder and the piston 25 protrudes and is inserted as the hydraulic pressure is applied. The roller portion 21 is coupled to the rotary link structure 29, the piston 25 is coupled to the rotary link structure (29). As the cylinder 24 operates and the piston 25 protrudes, the pair of rollers 21 move downward through the rotary link structure 29 to come into contact with the railway line. At this time it may be rotated slightly around the cylinder 24 and the rotating shaft (26). On the contrary, when the piston 25 is inserted into the cylinder 24, the pair of roller portions 21 move upward and fall off the rail. In the example of the present invention, the rotary link structure 69 for converting the reciprocating motion of the piston 25 into the lifting and lowering motion of the pair of roller parts 61 was developed and used as shown in FIG.

Drilling unit 60 is coupled to the arm portion 40 of the excavator 50 via the posture adjustment unit 90 to be described later. The drilling unit 60 has a frame 61 and a perforator 70 formed long in the vertical direction. Under the frame 61, a plate 63 having a through hole 62 is disposed to protrude to one side. The plate 63 is fixed to the ground or roadbed to be drilled. In addition, the perforator 70 is movable up and down along the guide portion 62 provided in the frame 61. The lower part of the drilling machine 70 is connected to a rod (not shown, a rod) mounted with an excavation bit, the rod is inserted into the roadbed through the through hole 63 of the plate 62 to perform the drilling. Since the drilling unit has a variety of configurations and known members, a detailed description thereof will be omitted. The present invention has been made in that it is possible to use the existing drilling unit as it is to improve the economics, it is possible to freely change the posture of the existing drilling unit to match the railway environment.

The free posture change of the drilling unit 60 is implemented by the excavator 50 and the posture adjusting unit 90. First, since the drilling unit 60 is coupled to the arm portion 40 of the excavator 50, the position movement in the plane is possible in accordance with the rotation on the horizontal plane of the excavator body portion 30. In addition, the height can be adjusted in the vertical direction in accordance with the operation of the arm (40). By using the excavator 50, the rotation and height adjustment functions of the excavator 50 can be used as they are.

Rotational movement and height adjustment on the horizontal plane is made by an excavator, the rotation in the vertical direction (including inclined direction) is implemented by the posture adjustment unit 90.

The posture adjusting unit 90 includes a first cylinder 81, a second cylinder 85, and a joint unit 95. First, the joint unit 95 includes a first member 91 coupled to the drilling unit 60 and a second member 93 rotatably coupled to one end of the first member 91 via the rotation shaft 92. ). The other end of the second member 93 is rotatably coupled to the arm portion 40 side of the excavator via the bearing 94. As a result, the drilling unit 60 is coupled to the arm 40 of the excavator by the bearing 94 and the joint unit 95.

As shown in FIG. 2, the first cylinder 81 is rotatably coupled to the excavator arm 40 along the a direction. The piston 82 of the first cylinder is rotatably coupled to the drilling unit 60. More specifically, the piston 82 is rotatably coupled to the second member 83. When the first cylinder 81 is operated and the piston 82 protrudes and is inserted, the piston 82 pushes or pulls the second member 83, and the drilling unit 60 coupled to the second member 83. The road is eventually pushed or pulled. As a result, the drilling unit 60 may be rotated on a vertical first plane using the bearing 94 coupled to the arm 40 as a pivot point. The direction indicated by a in the figure indicates the rotation direction on the first plane.

In addition, referring to FIG. 3, which is a front view of the drilling apparatus 100, one end of the second cylinder 85 may be coupled to the second member 93 of the joint unit 92. It does not necessarily need to be coupled to the second member, but may be rotatably coupled to the arm portion 40 side of the excavator 50. And the piston 86 of the second cylinder 85 is rotatably coupled to the drilling unit (60). When the piston 86 protrudes and is inserted according to the operation of the second cylinder 85, the drilling unit 60 may be rotated in the direction indicated by b on the second plane that intersects with the first first plane.

The first plane and the second plane are planes which are not parallel to each other and cross each other. The first plane in which the drilling unit 60 is rotated by the first cylinder 81 is a plane parallel to the plane in which the excavator arm 40 is disposed as shown in FIG. 2 and becomes a substantially vertical plane. When the plane in which the excavator 50 rotates in a horizontal direction is called XY plane on a Cartesian coordinate system, it can be said that a 1st plane is substantially XZ plane. The second plane may be referred to as a YZ plane.

That is, in the present invention, the drilling unit 60 is rotated on the XY plane by the excavator and the height can be adjusted, and the rotation on the XZ plane and YZ plane by the first cylinder 81 and the second cylinder 85, respectively It is possible.

The overall position and attitude change of the drilling unit 60 is shown briefly in FIGS. 6 to 8. That is, as shown in Figure 8, the drilling unit 60 is defined as a region capable of drilling a circle defined along the rotation radius based on the center point of the excavator. Of course, the link structure of the arm 40 is also a region that can be perforated inside the circle of FIG. In addition, as shown in FIG. 6, the drilling angle may be changed through rotation on the vertical first plane, and as shown in FIG. 7, the drilling angle may be changed through rotation on the second plane.

Since the railway roadbed consists of a plurality of floors, it is very important to change the position, posture and angle of the drilling device. That is, when injection of grout material is required in all the layers 1, 2, and 3 of the subgrade, the drilling angle must pass through all the layers as shown in the left side of FIG. However, when only the lower two layers 1 and 2 need reinforcement, a perforation angle may be formed as shown in the right side of FIG. 6. In addition, the perforation angle should be adjusted according to where the reinforcement part is located in each layer.

In this way, since the reinforcement part appears in various ways in the railway roadbed, it is very important to set the drilling position, angle, and posture. Drilling unit 60 on the XY, YZ, XZ plane as shown in the present invention can be rotated, respectively, the height can be set freely as described above can be set.

As described above, the drilling equipment according to the present invention is equipped with a drilling unit in the excavator, it is possible to safely pass on the railway tracks by modifying the excavator has the advantage of easy access to the railway fillet roads requiring maintenance reinforcement.

Above all, in the present invention, the perforator is rotatable in the XY plane, the YZ plane and the XZ plane on the Cartesian coordinate system, respectively, and the position and height are also adjustable. Accordingly, there is an advantage that the perforator can be freely set to a desired position, angle, and posture. Through this, it is possible to smoothly and quickly perform the reinforcement by precisely drilling the area requiring the reinforcement.

9 shows an example of drilling a fillet roadbed using a drilling device according to the present invention. Perforations were made in the oblique direction on both sides of the fillbed, and the perforations were performed vertically in the center.

After the perforation is performed, a separate grout material may be simultaneously injected to each layer of the fill bed through a multi-channel injection tube disclosed in Patent No. 1892217, filed and registered by the present applicant, and a grouting method using the same.

The protection scope of the present invention is not limited to the description and expression of the embodiments explicitly described above. In addition, it is again noted that the scope of protection of the present invention may not be limited due to obvious changes or substitutions in the technical field to which the present invention pertains.

100 ... Rail Filled Roadbed Drilling Equipment
10 ... body, 20 ... frame
30 ... body parts, 40 ... female parts
50 ... excavators, 60 ... drilling units
62 ... roller section, 64 ... cylinder
70 ... perforator, 81 ... first cylinder
85 ... 2nd cylinder, 95 ... joint unit
r ... railway

Claims (5)

As the equipment for drilling railroad santoban,
An excavator movable along a railway and having a main body rotatable in a horizontal plane and an arm coupled to the main body and movable up and down;
A drilling unit rotatably coupled to the excavator and rotatable on a first plane parallel to the arm and movable in an up and down direction and rotatable on a second plane intersecting the first plane; And
And a posture adjusting unit configured to rotate the drilling unit on a first plane and a second plane.
The posture control unit,
A bearing coupled to the arm of the excavator and rotating on the first plane,
A joint unit having a first member coupled to the drilling unit, one end of which is coupled to the bearing and the other end of which is coupled to the first member rotatably on the second plane via a rotational shaft;
One side is rotatably coupled to the arm of the excavator, the other end is a first cylinder rotatably coupled to the second member of the posture control unit,
One side has a second cylinder rotatably coupled to the second member of the posture adjustment unit and the other end is rotatably coupled to the drilling unit,
The drilling unit is rotatable on the first plane according to the protrusion and insertion of the piston of the first cylinder, the drilling unit is rotatable on the second plane according to the protrusion and insertion of the piston of the second cylinder,
It is coupled to the front and rear of the main body of the excavator, respectively, a pair of roller parts which are respectively in contact with the rail on both sides of the rail and the pair of rollers formed on the mutually opposite side, the roller part is separated from the rail rail Further provided with a guide roller having an annular flange formed to protrude so as to prevent being,
In order to drive the guide roller, a rotary shaft rotatably installed on the excavator, a pair of cylinders coupled to the rotary shaft, a piston protruding and inserted from the cylinder and coupled to the guide roller via a rotary link structure. Further provided with the guide roller is movable in the vertical direction to contact and spaced apart from the rail in accordance with the operation of the cylinder,
The drilling unit includes a frame formed to extend in the vertical direction, a plate disposed to protrude to the lower side of the frame and having a through hole formed therein, and fixed to a roadbed, and movable in a vertical direction along the guide part provided in the frame. The railway santoban punching equipment, characterized in that provided with a boring machine is inserted into the roadbed to perform the drilling. delete delete delete delete

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