JPH0782701A - Construction method of labor-saving track using standard device for track alignment and measuring device - Google Patents

Abstract

(57) [Abstract] [Purpose] Measurement for labor saving track construction that allows anyone to easily and accurately measure the leveling surface of ballast, the crushing surface of crushed stone, and the mounting surface of rail support materials. We propose a labor-saving track construction method that enables accurate construction in a short time by using a tool and a standard tool for track adjustment. [Structure] A reference device 20 for adjusting a track installed along a track, an engagement portion 12 for engaging one end side of a main frame 10 with the reference device 20, and a reference for sliding a position of the engagement portion. Height difference correcting means 30 for correcting the height difference of the vessel, level 11 for detecting the inclination of the main frame, a main leg 40 provided on the other end side of the main frame, and a ballast that is added to the main leg to level the ballast. And first and second auxiliary legs 41 and 42 for engaging the surface and the crushed surface of crushed stone and holding the main frame in a horizontal posture when these surfaces are at a predetermined height position. Labor saving track construction method using a measuring instrument configured as above.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a labor-saving track construction method.

[0002]

2. Description of the Related Art Conventionally, a bedbed track which is generally composed of three elements of rails, sleepers, and ballasts has been widely used.
This roadbed track has the advantages of low construction costs and relatively easy wiring changes. However, there is a drawback that the track is likely to get out of order as the train passes, and a large amount of cost is required for maintenance. Also, due to the extension of business hours, the track maintenance time is reduced, and night work restrictions on work noise are added, making it difficult to secure the required track maintenance amount. Against this background, a labor-saving track has been developed for improving the sales line, which is less likely to cause track breakage and therefore reduces track maintenance work.

Construction of a labor-saving track is performed in the following procedure. (A) Rail removal (in the case of the broken rail system) (B) Sleeper removal (C) Excavation of ballast ballast 1 (see Fig. 11) (D) Striking ballast 1 and rolling compaction (see Fig. 12) (E) Laying of non-woven fabric 2 (see Fig. 13) (F) Laying of crushed pea stones 3 (see Fig. 14) (G) Installation of slab or LPC (large concrete sleeper) 4 (see Fig. 15) (H) PQCAM (super fast) Injection of strong cement asphalt mortar 5 (see Fig. 16)

[0004]

[Problems to be Solved by the Invention] When a labor-saving track is installed,
The following items are subject to measurement, and the surface of each part must match the specified height position. (1) The height position of the ballast 1 that has been leveled and rolled (2) The height position of the crushed and ground stone 3 compaction surface (3) The top surface position when installing the slab or LPC 4 Conventionally, for each of these surfaces The height position is measured by a worker who has sufficient experience in surveying and is familiar with it, using surveying equipment such as transit and level. However, it is difficult to secure such a special worker. In addition, the installation work must be completed within the time from the last train to the first train, so the measurement must be completed in an extremely short time. The use of this point-measuring instrument has the drawback that it takes a long time.

An object of the present invention is to provide a labor-saving track measuring instrument capable of measuring the height of each portion easily by anyone with or without surveying experience and in a short time without error.
We are going to propose a method for constructing a labor-saving track using a track alignment standard.

[0006]

According to the present invention, a reference device for orienting a track, which is implanted along a track and serves as a reference for the height of the track, and one end of which is supported by the reference device is supported. The height position of each measurement surface is measured using the height position measuring device, and a labor-saving track is constructed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a measuring instrument used in the method for constructing a labor-saving track according to the present invention will be described with reference to FIGS. In FIG. 1, reference numeral 10 indicates a main frame which constitutes a measuring instrument. A level 11 is attached to the upper surface of the main frame 10 so that the tilt angle of the main frame 10 can be measured. An engagement portion 12 with a reference device 20 (see FIG. 6) for adjusting the track is provided on one end side of the main frame 10. In this example, the engaging portion 12 is a prismatic shaft. At the lower end of the engaging portion 12, the reference device 2 shown in FIG.
It has a concave portion 12A that engages with the reference pin 21 that is provided so as to project at 0, and the concave portion 12A allows the engaging portion 12 to stably maintain the engaged state with respect to the reference device 20.

The engaging portion 12 is slidably supported by the height difference correcting means 30 (see FIGS. 2 and 4) of the reference unit 20. That is, the height difference correction means 3 is provided on one end side of the main frame 10.
0 is provided. The height difference correcting means 30 is a guide 31 for slidably supporting a prism that constitutes the engaging portion 12 in the vertical direction.
And a fixing means 32 for tightening and fixing the engaging portion 12,
Signpost 33 and scale 34 for displaying the adjustment amount of the engaging portion 12
(See FIG. 4).

The guide 31 slidably supports the engaging portion 12 in a direction orthogonal to the longitudinal direction of the main frame 10. Since the engaging portion 12 is composed of a metal shaft, the guide 31
A resin plate is attached to the inside of the to ensure smooth sliding. In addition, the gap is made small to prevent the intrusion of crushed stones and the like, so that sliding is not hindered. The fixing means 32 can be constituted by a screw with a knob. By rotating the knob, the screw is moved forward and backward with respect to the guide 31, and the tip of the screw is brought into pressure contact with the shaft constituting the engaging portion 12 so as to be engaged. The joint 12 is fixed in that position.

The sign 33 is attached to the engaging portion 12 and moves up and down in a slit-shaped window provided on the scale 34.
When the height error of the reference device 20 is 0, the guidepost 33 may be aligned with the 0 on the scale 34 and the engaging portion 12 may be fixed by the fixing means 32. That is, set values in the height direction with respect to the rail head surface measured at the time of installation are written in the reference device 20. Therefore, if this set value is, for example, +5 mm, it means that it is higher than the specified value by 5 mm. In this case, the height difference of the reference device 20 can be eliminated by making the signpost 33 match -5 mm. When the set value of the reference unit 20 is -5 mm, it means that the set value is lower than the reference value by 5 mm. In this case signpost 3
3 should be adjusted by +5 mm on the scale 34. In this way, the height difference of the reference device 20 can be corrected.

On the other hand, the other end of the main frame 10 is provided with legs having a length equal to the height from the rail head surface to each surface to be measured. 40 indicates a main landing gear. The main leg 40 has a length equal to the distance from the reference point to the upper surface of the slab or LPC 4, and is provided so as to project downward from a separation adjusting slide portion 50 slidably provided on the main frame 10. In this embodiment, as shown in FIG. 2B, two main legs are provided with the axis of the main frame 10 as a line of symmetry, and the two main legs 40 support the main frame 10 with good stability.

The first auxiliary leg 41 or the second auxiliary leg 42 shown in FIG. 5 is attached to the lower end of the main leg 40. First auxiliary leg 41
Is longer than the other second auxiliary leg 42. When the first auxiliary leg 41 is attached, it is used for measuring the smoothed surface of the ballast 1 shown in FIG. The second auxiliary leg 4
2 is used to measure the surface of the crushed pea stone 3 shown in FIG. Therefore, the lengths of the first and second auxiliary legs 41 and 42 are different from each other by an amount corresponding to the thickness of the crushed stone 3. The first and second auxiliary legs 41 and 42 have cylindrical portions 41A and 42A for receiving the main leg 40 at their upper ends.
2A are provided with knob screws 41B and 42B, and the state in which the main leg 40 is engaged is fixed by the knob screws 41B and 42B.

A method for constructing a labor-saving track using the above-described measuring device and the track alignment reference device 20 will be described with reference to FIGS. 7 to 9. FIG. 7 shows a state in which the surface on which the ballast 1 is evenly measured is measured. In this case, the first auxiliary leg 4 is attached to the lower end of the main leg 40.
1, the first auxiliary leg 41 is placed on the leveled surface of the ballast 1 in this state, the engaging portion 12 is engaged with the reference pin 21 of the reference device 20, and the height difference of the reference pin 21 is changed. When the level 11 attached to the main frame 10 in the state corrected by the correction means 30 points horizontally, it can be seen that the surface on which the ballast 1 is struck and leveled is at the specified height position. When the surface on which the ballast 1 is leveled is set to a prescribed height, crushed pea stones 3 are then spread and solidified.

When measuring the surface on which the crushed pea stones 3 have been spread, the second auxiliary leg 42 may be attached to the main leg 40 as shown in FIG. By passing the measuring device over the reference device 20 and the surface to be measured with the second auxiliary leg 42 attached, the surface of the crushed stone 3 is moved to the specified height position according to the instruction of the level 11 attached to the main frame 10. It can be determined whether or not there is. When the surface of the crushed stone 3 is set to a predetermined height, the rail support material 4 such as a slab or LPC is carried in next.

To measure whether or not the upper surface of the rail support 4 such as a slab or LPC is at a specified height position, the auxiliary legs 41 and 42 may be removed. Therefore, in this case, the upper surface of the rail support member 4 is measured only by the main leg 40 as shown in FIG. FIG. 10 shows a case where rails are laid. In this case, the height difference between the reference device 20 and the rail head surface is measured. Since the main landing gear 40 interferes with this measurement, a separately prepared high-low vertical distance measuring device 50 is used. For this vertical height measuring instrument, for example, a "straight trajectory setting gauge" proposed by the present applicant in "KOKAI Sho 59-567" can be used.

[0016]

As described above, according to the labor-saving track construction method of the present invention, the engaging portion 12 of the measuring instrument is connected to the reference instrument 20.
, The first and second auxiliary legs 41 or 42 or the main leg 40 is placed on each surface to be measured, and the level 11 attached to the main frame 10 is read. Therefore, it can be handled by anyone with or without experience of surveying, and it can be easily measured whether or not the height position of each measurement surface is at a prescribed position. Further, since the first and second auxiliary legs 41 and 42 need only be exchanged to change the surface to be measured, the exchange can be completed in a short time. Therefore, the preparation for the measurement can be easily performed in a short time, and the time required for the measurement can be shortened. Therefore, it is possible to construct a labor-saving track in a short time.

[Brief description of drawings]

FIG. 1 is a front view for explaining a measuring instrument used in a labor-saving track construction method of the present invention.

2A is a plan view of FIG. 1, and B is a side view.

FIG. 3 is a cross-sectional view showing a structure of an engaging portion of the measuring instrument shown in FIG.

FIG. 4 is a front view showing the structure of height difference correction means provided in the measuring instrument shown in FIG.

5 is a front view for explaining an auxiliary leg used in the measuring instrument shown in FIG.

FIG. 6 is a view for explaining the installation situation and structure of a trajectory adjustment reference device.

FIG. 7 is a front view for explaining the first step of the labor-saving track construction method according to the present invention.

FIG. 8 is a front view for explaining a second step of the labor-saving track construction method according to the present invention.

FIG. 9 is a front view for explaining the second step of the labor-saving track construction method according to the present invention.

FIG. 10 is a front view for explaining a state of measuring the height position of the rail head surface.

FIG. 11 is a view for explaining a conventional labor-saving track construction procedure.

FIG. 12 is a view for explaining a conventional labor-saving track construction procedure.

FIG. 13 is a view for explaining a conventional labor-saving track construction procedure.

FIG. 14 is a diagram for explaining a conventional labor-saving track construction procedure.

FIG. 15 is a view for explaining a conventional labor-saving track construction procedure.

FIG. 16 is a view for explaining a conventional labor-saving track construction procedure.

[Explanation of symbols]

 1 ballast 3 crushed stone 4 rail support 10 main frame 11 level 12 engaging part 20 standard 30 height difference correction means 31 guide 32 fixing means 33 guidepost 34 scale 40 main leg 41, 42 first and second auxiliary leg

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Hayakawa 1-6-5 Marunouchi, Chiyoda-ku, Tokyo Inside East Japan Railway Company (72) Hideo Kobayashi 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Tsuyoshi Futani 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Minoru Fukuda 2-chome, Ichigaya-Sadohara-cho, Shinjuku-ku, Tokyo Address Totetsu Kogyo Co., Ltd. (72) Inventor Shoji Kondo 2-7 Ichigaya Sadohara-cho, Shinjuku-ku, Tokyo Inside Totetsu Kogyo Co., Ltd. (72) Inventor Keisho Kaneko 1-2-4-2 Zenpukuji, Suginami-ku, Tokyo

Claims (1)

[Claims] 1. A groove is dug in a ballast laid on a surface on which a track is to be laid, the ballast surface serving as the bottom of the groove is leveled, and the height position of the leveling surface of this ballast and this Place ground crushed stones on the leveling surface of ballast and harden it. Set the level of the surface where this ground crushed stones are solidified and the rail support material on the solidified surface of this ground crushed stone, and the top surface of this rail support material. In the labor-saving track construction method in which the height position of each is specified to the specified height, the reference device for track alignment installed along the track as a reference for each of the above height positions A mating engaging part, which slidably engages with the engaging part, supports the main frame in a direction orthogonal to the longitudinal direction of the engaging part, and determines the height position of the main frame on one end side of the reference device. Height difference correcting means for correcting installation error and supporting at the reference position, the other end side of the main frame A main leg projecting in a direction parallel to the extending direction of the engaging portion, a first auxiliary leg that is added to the main leg to measure the height position of the rake surface of the ballast, and the main leg A second auxiliary leg for measuring the height position of the compacted surface of the crushed pea stone, and the main leg provided for measuring the height position of the upper surface of the rail support member. A method for constructing a labor-saving track using a tool.