KR101293967B1 - Tester inserting apparatus for estimating rail road - Google Patents

Abstract

PURPOSE: A tester inserting device for estimating rail ground is provided to allow a user to estimate a rail ground state of an original state with direct insertion by minimizing the change of the displacement and the damage of the rail road and by installing a tester for estimating the rail ground. CONSTITUTION: A tester inserting device (100) for estimating rail ground comprises a mounting unit (110), a reaction footstool (130), and a soil inflow preventing beam (120). The mounting unit comprises a main body (114) and a rotary guide plate (114c). The main body is formed in a pipe shape so that a tester measuring a rail road state is inserted into a connection unit (114a) of the inside. The rotary guide plate is formed in order to spirally protrude along the outer circumference of the main body. The reaction footstool comprises a bottom plate (132) and an insertion pipe (134). The bottom plate is installed between sleepers supporting a railway line. The insertion pipe is located on the center of the bottom plate and includes a hollow so that the mounting unit is inserted. The soil inflow preventing beam is detachably connected to the mounting unit and includes a protrusion unit (124b) mounted on a lower end (114b) of the main body in order to protrude downward.

Description

TESTER INSERTING APPARATUS FOR ESTIMATING RAIL ROAD}

The present invention relates to a tester inserting device for the evaluation of railway grounds, and more particularly, to inserting a tester for evaluating the condition of the railway grounds by installing a cone injector while minimizing the change of destruction and displacement of the railway roadbed. Relates to a device.

In general, the track of the railway can be maintained in a certain shape according to the condition of the railway roadbed. That is, the state of the roadbed is changed according to the amount of fine grains contained in the roadbed, the degree of crushing gravel, the drainage state. Therefore, in order to reduce the costs incurred to maintain or repair the tracks, roadbed evaluation is necessary to measure the original condition of the roadbed so that the roadbed and the road of the railroad are not designed to be overdesigned. As the method of evaluating the roadbed located below the track of the railway, the excavation method is to excavate the excavation to the desired depth with the icon sampler, and then carry out the field density test at the corresponding depth. Problems will arise. That is, such a method has a problem in that it is difficult to apply to evaluating the roadbed being used as a railroad because it requires a large destruction of the ground.

Conventionally, in order to improve such a problem, Chan-Yong Choi (2006) uses a Dynamic Cone Penetrometer (DCP) and Light Falling Weight Deflectometer (LFWD), and Kim, Dae-Jung (2005) uses a Ground Penetrating Radar (GPR) and Plate Bearing Test (PBT). The CSW (Continuous Surface-Wave) technique is used to evaluate the lower roadbed by generating surface waves using a vibrator (Go Hak Song, 2004). In addition, research on quality control using compressed waves is also in progress. However, since there is no direct measurement result that can be compared with the experimental results obtained using the compressed wave, the value obtained using the compressed wave has a problem in reliability. In addition, in the case of the above-described test gulting method, although it is a direct measurement method, it is not applicable to the railway roadbed and still cannot measure the torque according to the depth of the road located in the upper part of the railway roadbed. There are many difficulties in the practical use of the gravel layer located on the road. Therefore, it is necessary to develop a test method capable of evaluating the direct roadbed condition by intrusion so as to obtain a value that can be a comparison standard of various tests. In addition, it is necessary to develop an objective measuring method for evaluating the roadbed state according to the size of the gravel layer in the process of penetrating the gravel layer of the road.

Therefore, in recent years, the roadbed condition can be evaluated by direct penetration while maintaining the strength of the original ground, and the roadbed cone pipe which can objectively measure the condition of the roadbed according to the gravel size. There is a need for an insertion device.

The problem to be solved by the present invention is to install the railway roadbed evaluation tester while minimizing the change of the breakage and displacement of the railway roadbed can be evaluated by direct intrusion of the original railway ground condition, It is to provide a tester inserting device for evaluating railway grounds that can objectively measure the condition.

The present invention, in order to solve the above problems, the main body provided in a tubular shape so that the tester for measuring the railway roadbed state is formed in the fastening portion which is a space formed therein, and a rotation guide connected to protrude in a spiral along the outer peripheral surface of the main body A fitting including a plate;

A reaction plate comprising a bottom plate installed between the sleepers supporting the railway tracks, an insertion tube positioned in the center of the bottom plate and having a hollow to insert the mounting hole; And

It is detachably coupled to the mounting hole, and the earth and sand inlet prevention beam including a projection provided to protrude downward on the lower end of the main body of the mounting hole;

According to one embodiment of the invention, it is preferable that the protrusion of the soil inflow prevention beam is formed in the shape of a cone provided with a tip.

In addition, it is preferable that a strain gauge is mounted on the main body of the mounting tool.

In addition, the bottom plate of the reaction force scaffold is formed in an oval shape,

The length of the long axis of the bottom plate is preferably formed longer than the distance between the sleepers.

In addition, it is preferable that the railroad ground evaluation tester insertion device is further provided with a guide tube which is concentric with the insertion tube and has a guide portion which is a space into which the mounting hole is inserted.

Here, the guide tube is preferably formed so that its inner peripheral surface corresponds to the shape of the outer peripheral surface of the mounting hole.

In addition, the outer peripheral surface of the lower end provided in the lower portion of the main body, it is preferable to be formed in a tapered shape so that the inclined surface formed on the protrusion of the anti-soil inflow prevention beam is extended.

In addition, it is preferable that a handle is connected to the upper end of each of the main body and the soil inflow prevention beam of the mounting hole.

In addition, the rotation guide plate is preferably formed to be wider as it is positioned upward.

According to the present invention, by installing a variety of testers that can measure the railway roadbed condition while minimizing the change and the change of the roadbed roadbed, it is possible to evaluate the condition of the original railroad ground by direct penetration, the top of the railway roadbed made of gravel It is possible to objectively measure the state of the located road, and various in-situ experiments such as vane and in-vehicle loading test can be applied in addition to cone penetration test, and it is possible to directly measure the constant of railroad ground by penetration. The location of railroad tracks and roadbeds can be grasped, and the information necessary for maintenance and repair can be precisely measured, thereby reducing costs by preventing overdesign of roadbeds and roadbeds on which railroads are installed. .

1 is an exploded perspective view of a tester inserting device for evaluating the soil ground according to an embodiment of the present invention.
Figure 2 is a plan view of the test machine insertion apparatus for a railway ground evaluation according to an embodiment of the present invention.
Figure 3 is a cross-sectional view showing the installation procedure of the test machine insertion device and the cone injector for the ground test evaluation according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to preferred embodiments. It will be apparent to those skilled in the art, however, that these examples are provided to further illustrate the present invention, and the scope of the present invention is not limited thereto.

The testing machine inserting device for evaluating the railway ground according to the present invention, by regularly checking the condition of the railway roadbed (1c) and the phase (1a, 1b) is formed, the railway track can be prevented from twisting or bending deformation occurs, It is to prevent the stiffness of the roadbed 1c from dropping rapidly during the process of measuring the roadbed 1c state. That is, unlike the conventional test excavation method, which can measure only the railway roadbed 1c only when the ground is completely excavated to the desired depth, it can be applied to the railway roadbed 1c in operation. The state of can also be measured.

Figure 1 is an exploded perspective view of the insertion device for the evaluation of the railway ground according to an embodiment of the present invention.

The testing machine inserting apparatus 100 for evaluating the railway ground according to the present invention can be classified into a portion that is largely mounted in the ground and a portion that can maintain the verticality of the portion mounted in the ground while supporting the ground. The portion mounted in the ground, there is a mounting hole 110 and the soil inflow prevention beam 120, the portion supporting the ground is the reaction footing 130. In addition, the guide tube 140 provided on the upper side of the reaction footrest 130 serves to insert the mounting hole 110 is inserted into the ground while maintaining the vertical degree.

As shown in FIG. 1, the tester inserting apparatus 100 for evaluating the railway grounds according to an embodiment of the present invention includes a tester for measuring the state of the railway roadbed 1c at the fastening part 114a which is a space formed therein. A mounting hole (110) including a main body (114) provided to be inserted into a tubular shape, and a rotation guide plate (114c) formed to protrude in a spiral along the outer circumferential surface of the main body (114);

The bottom plate 132 is installed between the sleepers 7 supporting the railroad tracks 5, and the insertion pipe 134 is formed at the center of the bottom plate 132 so that the mounting hole 110 is inserted. Reaction footing 130, including; And

A sediment inflow prevention beam 120 that is detachably coupled to the mounting hole 110 and includes a protrusion 124b protruding downward from the lower end 114b of the main body of the mounting hole 110. Include.

When the tester inserted here is a cone injector, the shape of the protrusion 124b may be a cone shape provided with a tip. In order to help the understanding of the present invention will be described by holding a cone injector as a tester mounted on the present invention. However, the tester inserting device for evaluating the railway ground can be equipped with various testers to evaluate the condition of the railway roadbed (1c), and the tester that can be mounted is not limited to the cone injector.

The mounting hole 110 and the soil inflow prevention beam 120 inserted into the ground are inserted in a state in which they are integrally coupled when inserted into the ground. Therefore, the earth or sand does not flow into the fastening portion 114a during the mounting hole 110 descends into the ground. When the plate-shaped rotating guide plate 114c spirally formed along the outer circumferential surface of the mounting hole 110 passes through the gravel layer located on the islands 1a and 1b to reach the lower plate 1c. Minimize disturbance of the gravel layer. That is, due to the installation of the soil inlet prevention beam 120 is provided with a cone-shaped tip 124b at the lower end (114b) of the mounting hole 110, thereby making it easy to pull into the railway ground. The mounting holes 110 drawn in as described above are lowered to the lower part of the railway ground by rotational driving. In this process, the gravel provided in the gravel layer has a large particle size, thus simply hitting the mounting holes 110 downward. It is not possible to draw in the ground. Therefore, the present invention is to allow the gravel to move naturally by the rotation guide plate 114c to form a passage through which the mounting hole 110 can be drawn.

Herein, the main body 114 may be equipped with a strain gauge (S.G). As described above, the strain gauge SG mounted on the main body 114 may be formed of gravel and crushed stone while the main body 114 is rotated and inserted into the railway roadbed 1c as well as maintaining the intruded state. The torque of 1b) can be measured. Therefore, unlike the prior art in which only the state of the roadbed 1c can be evaluated at the time of penetration measurement, the torque of the phases 1a and 1b can be measured. Therefore, the figures 1a and 1b are excessively estimated by technical know-how. Design can be prevented.

At this time, in order to minimize the frictional force of the gravel layer acting on the main body 114 of the mounting hole 110, it is preferable that the rotation guide plate 114c is formed to be wider as it is positioned upward. That is, the width of the rotation guide plate 114c positioned on the upper portion of the main body 114 is wider than the width of the rotation guide plate 114c positioned on the lower portion of the main body 114. In addition, the outer circumferential surface of the lower end 114b of the main body 114 provided below the main body 114 may be formed in a tapered shape so that the inclined surface formed on the protrusion 124b of the earth and sand intrusion prevention beam 120 extends. Do. For example, the outer diameter of the protrusion 124b of the soil inflow prevention beam 120 to be exposed compared to the outer diameter of the main body 114, that is, the cone intruder to be inserted into the main body 114 and exposed to the subgrade 1c. When the size of the outer diameter of the cone portion of the small, the projections of the exposed soil inflow prevention beam 120 or the bottom of the main body 114 located on the upper portion of the cone of the cone intruder 114 of the soil inflow prevention beam 120 An inclined surface coinciding with the inclination of the protrusion or the inclination of the cone intruder cone is provided at the lower end 114b of the main body 114. Therefore, when the soil inflow prevention beam 120 or the cone injector is inserted into the main body 114, the same effect as that the lower end 114b of the main body 114 is formed sharply can be obtained. As such, when the first insertion point in the ground is pointed, the repulsive force received from the ground can be minimized, so that the torque of the gravel layer can be accurately measured. In addition, since the width of the rotation guide plate 114c increases toward the upper side, the friction force at the time of initial insertion can be minimized while the mounting hole 110 is minimized while the friction force at the initial insertion time is minimized.

At this time, by forming the handles 112 and 122 at the upper end of each of the mounting holes 110 and the earth and sand inflow prevention beams 120, and smoothly rotate the mounting holes 110 and at the same time the earth and sand inflow prevention beams 120 To be easily removable from the mounting hole (110). Here, the soil inflow prevention beam 120 may maintain a coupling relationship with the mounting hole 110 to be inserted into the ground while maintaining the state coupled to the mounting hole 110 during the mounting hole 110 is rotated. Fasteners (not shown) may be provided.

By forming the mounting holes 110 in such a shape, the mounting holes 110 can easily penetrate the gravel layer formed in the railway roadbed 1c at a high speed. In addition, by measuring the torque of the phases (1a, 1b) in which the gravel layer is formed by the strain gauge (SG) provided in the mounting hole 110 during this process, the state of the phases (1a, 1b) as well as the roadbed (1c) is evaluated. By doing so, the entire railway ground state in which the railroad is installed can be measured.

In the process of inserting the mounting holes 110, the reaction force scaffold 130 is to suppress the gravel rising in the direction opposite to the penetration of the mounting holes 110 to maintain a constant reaction force of the gravel layer. In addition, the guide tube 140 concentric with the insertion tube 134 of the reaction footrest 130 is provided in the tubular shape in the upper portion of the insertion tube 134 of the reaction footrest 130, the mounting hole 110 maintains the vertical degree As you descend, The mounting hole 110 is inserted into the guide portion of the guide tube 140, and the inner circumferential surface of the guide tube 140 and the outer circumferential surface of the mounting hole 110 may form a shape of the guide portion so as to be unevenly coupled to each other. That is, grooves may be formed spirally on the inner circumferential surface of the guide part in a track corresponding to the spiral of the rotation guide plate 114c of the mounting hole 110. Therefore, the mounting hole 110 can be inserted into the railway ground while maintaining the vertical degree.

Figure 2 is a plan view of the railroad ground evaluation tester inserting apparatus 100 according to an embodiment of the present invention.

The tester inserting apparatus 100 for evaluating the railway ground according to the present invention may be installed on the railway ground located between the sleepers 7 supporting the track 5 of the railway. In the case of installing the railway tester inserting apparatus 100 in this position, the bottom plate 132 of the reaction scaffold 130 is formed in an elliptical shape, as shown in Figure 2, of the bottom plate 132 The length of the long axis is preferably formed longer than the spaced length between the sleepers (7). Therefore, even if the bottom plate 132 is rotated at the same time in the process of rotating the mounting hole 110, because the long axis of the bottom plate 132 is formed longer than a certain angle does not rotate, sleepers (7) When the mounting hole 110 rotates while supporting the rail ground (1) in a constant reaction force to the railway ground evaluation tester inserting apparatus 100 is to be inserted.

3 is a cross-sectional view showing the installation procedure of the railway tester inserting apparatus 100 and the cone injector according to an embodiment of the present invention.

Tester insertion device 100 for the evaluation of railway grounds provided in this way, may be inserted into the railway ground in the order shown in FIG. First, as shown in Figure 3a, the soil inflow prevention beam 120 is inserted into the mounting hole 110 is integrally fastened to the railway ground. At this time, the mounting hole 110 is inserted to the position of the roadbed 1c to be evaluated by the cone indenter. Then, as shown in Figure 3b, after removing the soil inlet prevention beam 120 fastened in the mounting hole 110, as shown in Figure 3c, by inserting the cone injector state of the lower roadbed (1c) Evaluate. In addition, by hitting the head to the cone intruder during penetration, it is possible to measure the acceleration and strain due to the strike.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: Tester insertion device for railway ground evaluation
110: mounting hole 112: handle
114: main body 114a: fastening portion
114b: lower body 114c: rotation guide plate
120: soil intrusion prevention beam 122: handle
124: vertical beam 124b: tip
130: reaction board 134: insertion tube
140: guide tube

Claims (9)

A mounting hole including a main body provided in a tubular shape so that a tester for measuring a railway roadbed state is inserted into a fastening part which is a space formed therein, and a rotation guide plate protruding in a spiral along an outer circumferential surface of the main body;
A reaction plate comprising a bottom plate installed between the sleepers supporting the railway tracks, an insertion tube positioned in the center of the bottom plate and having a hollow to insert the mounting hole; And
And a sediment inflow prevention beam that is detachably coupled to the mounting hole and includes a protrusion provided to protrude downward from the lower end of the main body of the mounting hole. The method of claim 1,
The projecting portion inserter for the railway ground evaluation, characterized in that the projecting portion of the anti-soil inflow beam is formed in a cone shape with a tip. The method of claim 1,
And a strain gauge is mounted to the main body of the mounting hole. The method of claim 1,
The bottom plate of the reaction force scaffold is formed in an oval shape,
The length of the long axis of the bottom plate is longer than the length of the spaced apart between the sleepers, the railway ground evaluation tester inserting apparatus. The method of claim 1,
The railroad ground evaluation tester inserting device is a railroad ground evaluation tester inserting apparatus, characterized in that the guide tube is formed concentrically with the insertion pipe, the guide portion is a space for the mounting hole is inserted. The method of claim 5,
The guide tube is inserted into the railway ground evaluation tester, characterized in that the inner circumferential surface is formed to correspond to the outer circumferential surface shape of the mounting hole. The method of claim 1,
The outer peripheral surface of the lower end provided in the lower portion of the main body, characterized in that formed in the tapered shape so that the inclined surface formed in the protrusion of the anti-soil inflow prevention beam extends. The method of claim 1,
The upper part of each of the main body and the soil inflow prevention beam of the mounting hole is connected to the railway ground evaluation tester, characterized in that the handle is formed. The method of claim 1,
The rotation guide plate is inserted into the upward width of the railway ground evaluation tester inserting device, characterized in that formed.

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