KR101250486B1 - Bridge railway ballasting construction method using temporary bent - Google Patents

Abstract

PURPOSE: A ballast method for a railway bridge using a temporary bent is provided to set a ballast upper structure on an accurate position after safely and quickly moving the ballast upper structure, thereby more quickly and effectively implementing the ballast of the railway bridge. CONSTITUTION: A ballast method for a railway bridge using a temporary bent includes: a step of installing a transverse rail at the sides of a ballastless bridge installed at an abutment and a pier; a step of installing a temporary bent(200) at the transverse rail so that the temporary bent of which the lower portion is equipped with rollers and directly moves along the transverse rail; a step of assembling and completing a ballast upper structure(100) on the upper surface of the temporary bent; a step of removing the ballastless bridge, moving the temporary bent on the ballast-upper structure along the transverse rail, and then settling the temporary bent on a position in which the ballastless railway bridge is installed; and a step of restoring the temporary bent along the transverse rail. [Reference numerals] (AA) Longitudinal direction; (BB) Transverse direction; (CC) Steel plate; (DD,EE) Position control;

Description

BRIDGE RAILWAY BALLASTING CONSTRUCTION METHOD USING TEMPORARY BENT}

The present invention relates to an induction fire process of a railway bridge using a temporary vent. More specifically, in replacing the railway bridge, the induction upper structure is manufactured in advance by the precast method, and after installing the temporary vent on the side of the existing railway bridge, the position of the existing ballless bridge in which the inductive upper structure is removed together with the temporary vent The present invention relates to an induction virtualization method of a railway bridge using a temporary vent that induces an inverse phase of a conventional ballless bridge.

In railroad bridges, induction phases refer to a condition where gravel is laid on the rails and sleepers supporting them for shock absorption. On the other hand, the ball phase refers to a state in which the gravel is not laid.

In general, most railway bridges constructed in the past are steel bridges, which are installed on the ball as shown in FIG. 1A.

In detail, the ballless railway bridge is provided to support the pair of rails 61 installed in the longitudinal direction in parallel in the width direction at a predetermined interval to support the sleepers 62, the lower portion of the sleepers 62 63 is provided in the longitudinal direction, and the girder 63 is provided to be supported by the alternating device 65 formed on the upper surface of the alternating girder or the pier 64.

These railway bridges take very large dynamic loads as the train proceeds.

Therefore, the sleeper uses a wooden sleeper to absorb a certain amount of load, but when the gravel is not laid, the shock absorber is not well absorbed, so that the sleeper 10 or the girder 30 and the sleeper 20 are in contact with the sleeper. As the damage occurs on the contact surface and the damage is intensified, the running noise of the train becomes severe.

In addition, because the heavy impact load of the train directly acts on the bridge system, bridge, etc. through the girders, fatigue and damage (cracking), etc. were inevitable frequently.

Therefore, a reinforcement method was introduced to induce the existing ball-free railway bridge.

One of these methods is to newly install slabs (upper structures) and cast gravel on existing martial arts railroad bridges, and this method requires the installation of clubs and formwork for concrete placement. There is a problem that must be blocked.

Recently, a method of quickly manufacturing a slab using a temporary vent on the side of a railway bridge by prefabricating the slab has been introduced.

FIG. 1B illustrates a method of installing such a precast slab 50 using a temporary vent 20.

That is, it has the same interval as the alternating bridge 10A and pier 10B interval of the railway bridge, the clamp 22 for the height adjustment in the direction perpendicular to the alternating and bridge piers, steel plates (23, 24, 25) It is configured to install a temporary vent 20 fixed to the base concrete (10C).

In addition, the brackets 30 are respectively installed in the inner side of the river and the front and rear of the bridge of the railway bridge,

The rail R is installed on the upper horizontal frame 21 of the temporary vent to install the moving cart 40 having the roller 42 thereon.

Accordingly, a new precast slab 50 is manufactured separately, and a railway bridge (C) composed of existing railroad tracks, sleepers (C), and girder is replaced, and a new precast slab (50) loaded on the mobile truck 40 is newly shifted, It is to enable the induction of the railway bridge in a way that is installed using the support 60 in the pier.

Thus, the temporary vent 20 is installed in a straight line with respect to the direction of the alternating and pier of the railway bridge and the flow of water in the river, so that the cross-sectional area of the passage does not decrease even in the rainy season with heavy rainfall. Has the function of protector to prevent the effect of keeping the bridge safe

The precast slab 50 is manufactured on the temporary construction or the precast slab 50 pre-fabricated in the factory is seated, and the concrete slab is quickly and correctly installed in the right position by the movement of the self-propelled trolley without stopping the train operation time. By making it replaceable, the workability and quality are good and there is an effect that can be stable construction.

However, in this method, it is important to accurately set the precast slab 50 to be finally connected in order to secure accurate continuity and function of the sleepers, rails, etc. installed in the future, but in practice, the precast slab 50 is correctly There was a problem that setting was not easy.

Furthermore, this method has a problem in that the construction cost increases because it is necessary to extend the temporary construction 20 to the pier, alternating and to install the bracket 30 on each of the alternating and pier.

That is, it is necessary to continuously adjust the position in the final longitudinal direction and the transverse direction of the precast slab 50 and install it continuously with the precast slab 50 installed in advance. The rail provided on the upper horizontal frame 21 of the temporary vent As a result of moving the precast slab 50 by using the moving cart 40, the position of the moving cart 40 is constrained by the rail, so that the correct setting position of the precast slab 50 is difficult.

In practice, safety accidents such as the rails installed between the bogie and the upper horizontal frame 21 are conducted when the position of the bogie is excessively adjusted in order to change the setting position of the precast slab 50. It happened.

In particular, in the case of curved railway bridges, in order to install a new superstructure (precast slab), the longitudinal and transverse gradients must be precisely aligned. This work has a problem that the superstructure carried by the temporary construction is limited. .

Therefore, the present invention is to install a temporary vent on the side of the railway bridge, in the installation of the upper structure for induction burn using the temporary vent, the induction upper structure of the induction phase superstructure after moving more safely and quickly It is a technical problem to solve the provision of the induction virtualization method of railroad bridges using temporary vents that can perform the induction virtualization of railroad bridges more quickly and effectively.

According to an aspect of the present invention,

First, the induction phase superstructures of railway bridges were manufactured by precast and brought to the site to be completed on the upper surface of temporary vents.

Secondly, the induction upper structure is moved to the conventional bogie and bogie by moving the induction superstructure along the lateral rail installed under the temporary vent in a state where it is placed on the temporary vent installed on the side of the railway bridge. It is possible to move the upper structure induction phase without having to provide a separate drive means for optimizing the workability and economics.

Accordingly, a rail is installed in a transverse direction under the temporary vent, and a temporary tent in which an induction upper structure is stacked is moved directly along the transverse rail so that the induction upper structure is alternately installed at the pier.

Third, in order to set the induction upper structure in the correct position, a sliding pad is fixedly installed on the upper surface of the temporary vent, and a support means is installed on the upper surface of the sliding pad so that the support means includes a hydraulic jack on the upper surface of the sliding pad. By sliding it was to be able to accurately adjust the position of the induction upper structure installed to be supported by the support means.

To this end,

(a) installing a transverse rail on the side of the ballless bridge installed on the bridge, the bridge; (b) installing a temporary vent on the transverse rail so that a roller is formed at the lower portion to move directly along the transverse rail; (c) assembling and completing the induction superstructure on the upper surface of the temporary vent; (d) removing the martial arts-free bridge and moving a temporary vent installed on the upper surface of the inductive superstructure along a transverse rail and seating at a location where the martial arts-free railway bridge is installed; And (e) returning the temporary vent along the transverse rail,

In the step (d), the sliding pad is fixedly installed on the upper surface of the temporary vent, the support means is installed to slide on the upper surface of the sliding pad, and the position control means including the hydraulic jack on the supporting means installed on the upper surface of the inductive phase. By connecting the support means to be able to adjust the position of the induction upper structure installed on the upper surface of the support means while the support means is slid from the upper surface of the sliding pad by the operation of the position control means, the support means using a jack for lifting the upper structure The position control means includes a hydraulic jack mounted on the housing and a hydraulic cylinder, wherein the hydraulic cylinder is connected to the side of the support means and supports the support means on which the upper structure is supported by the operation of the hydraulic cylinder. Iron with hypothetical vents that allow the operator to adjust to the desired position Provide Taoist induction technique.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

According to the present invention, the upper structure is made of precast, and construction for rapid induction of the railway bridge is possible.

At this time, the upper structure is capable of a variety of shapes, but the slab and the girder are manufactured in an integrated manner, but by making a segment to be assembled in the field so that the efficiency of manufacturing, transport and construction can be improved.

In addition, since the upper structure is moved together with the temporary vent and installed, it is not necessary to operate a separate truck for moving the upper structure from the temporary vent, thereby improving construction performance and securing economic feasibility and safety accidents such as conduction of the upper structure. Can be prevented.

In addition, when the temporary vent is moved by the rail, the temporary vent is constrained by the rail, so that the movement and position adjustment of the upper structure is difficult in the direction perpendicular to the rail installation direction, but the present invention provides a sliding pad and a support means (upper upper structure). It is possible to simply change the position of the upper structure in the field by using the position control means including the jack) and the hydraulic jack, it is possible to precise construction of the upper structure, especially in the curved railway bridge.

Accordingly, the upper structure can be constructed at the correct position, thereby securing the continuity of the sleepers and rails installed in the upper structure, thereby ensuring the constructability and usability.

Figure 1a is a cross-sectional view of a conventional ballless railway bridge,
1B and 1C are cross-sectional views and induction diagrams of induction burn construction of a railway bridge using a conventional temporary vent,
Figure 2 is a perspective view of the production of the upper structure of the present invention,
Figure 3 is a perspective view of the position adjustment of the upper structure using the position control means including a sliding pad and the hydraulic jack of the present invention,
4a, 4b, 4c, 4d and 4e is a flow chart of the railroad bridge replacement method using a temporary vent according to the present invention
5 is a perspective view of a railway bridge replacement method using a temporary vent according to the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

[Induction phase structure 100 of the present invention]

The induction upper structure 100 may be referred to as a bridge for induction of the railway bridge. These bridges are made of a precast method.

The induction superstructure 100 used for the railway bridge also has a constant length and width in the longitudinal and transverse directions.

Accordingly, a plurality of superstructures must be connected in the longitudinal direction according to the longitudinal length of various railway bridges, and the problem is that when the width of the transverse width is increased, the size of one induction superstructure is very large.

Therefore, the construction of the induction upper structure and the vehicle transportation are also limited, and the work on the upper surface of the temporary vent becomes difficult in the field.

Accordingly, the present invention is to have a predetermined length (L) in the inverted upper structure 100 in the longitudinal direction as shown in Figure 2 to be produced in a number of segments to be connected to each other in the transverse direction.

Accordingly, the induction upper structure 100 is manufactured to be made of a hollow box structure as a low solid body, but is formed to be formed of the trunk portion 110 and the upper flange 120.

The body portion 110 is formed in the form of a shape in which the EPS 111 is embedded in the inside to reduce the weight in the form of a box, the upper portion of the body portion 110 is formed as an extended upper flange 120 It is.

At this time, the through-hole 112 in the transverse direction is formed in the body portion 110 is manufactured to be integrated with each other by the transverse tension member (130).

Therefore, in connecting at least two or more segment upper structures to each other in the transverse direction, it is integrated with each other using grouting material (140, cast-in-place concrete, etc.) filled in the connecting groove of the transverse tension member 130 and the upper flange connection. This work is done on the top of the construction vent after the construction of the segment superstructure at the factory, brought to the site.

In the upper surface of the induction phase structure 100, a barrier, a railing, etc. are installed on the side, and the sleeper 150 and the railroad 160 are installed so that the induction of the gravel 170 is installed on the upper surface. It will be able to secure the constructability enough.

[Adjusting the position of the induction upper structure 100 of the present invention]

Although it will be described later, as shown in FIG. 4A, the induction upper structure 100 is placed on the temporary support 211 on the upper surface of the temporary vent 200 to be seated on the temporary vent 200, and moved horizontally together with the temporary vent 200. .

This movement is the position of removing the tracks, sleepers and girders of the conventional martial arts railroad bridge, the position of the temporary vent 200 is precisely determined from the design so that the induction phase superstructure 100 can be located exactly in this position Should.

However, if the position of the temporary vent is not precisely installed due to an error in construction, it is not easy to accurately install the position of the upper structure 100 in induction phase.

Therefore, the present invention provides a means for adjusting the position of the induction upper structure 100 somewhat on the upper surface of the temporary vent even if the diarrhea temporary vent 200 is restrained in the direction perpendicular to the movable rail by the movable rail 300. do.

This means is a position adjusting means 400 including a sliding pad 410 and a position control means 420 including a hydraulic jack for adjusting the position of the sliding pad.

First, the sliding pad 410 is a member in the form of a plate fixed to the upper surface of the temporary vent 200 as its name is used made of a Teflon material with a very small coefficient of friction, but the inside of the steel plate is embedded in the bottom of the heavy Sufficient durability can be ensured even when installed in the.

The sliding pad 410 is installed on the upper surface of the temporary vent 200, the position is fixed, the support means 210 that is a jack for lifting the upper structure is installed on the upper surface of the sliding pad 410.

The induction upper structure 100 is supported by the sliding pad 410 and the support means 210. When the support means 210 installed on the upper surface of the sliding pad 410 is pushed in a predetermined direction, the sliding pad and the support means are supported. The portions in contact with each other can adjust the position of the induction upper structure 100 supported by the support means 210 with a small frictional coefficient with a very small force.

At this time, the means for providing a force for pushing the support means 210 is a position control means 420 including a hydraulic jack.

That is, by the position control means 420, the support means 210 can adjust the position of the inductive upper structure 100 on the sliding pad 410 to the desired position.

The hydraulic jack 421 of the position control means 420 is mounted to the housing 422, the hydraulic jack 421 is connected to the side of the support means 210 to the upper structure by the operation of the hydraulic cylinder 423 Supported support means 210 can be adjusted to a desired position on the upper surface of the sliding pad.

Accordingly, the position control means 420 can be miniaturized, so that the position control means 420 is very easy to carry and install and easy to operate.

At this time, the position control means 420 can be installed anywhere on the side of the support means 210 to be able to freely adjust the position (vertical and transverse direction) of the upper structure by the temporary support.

At this time, the support means 210 is to use a jack for lifting the upper structure and to form a ring on the outer peripheral surface of the jack for lifting the upper structure and the hydraulic cylinder 423 is connected to the ring position control means in the support means 210 420 may be connected.

[Railway Bridge Replacement Method Using Temporary Vent of the Present Invention]

4a to 4e sequentially illustrate the railway bridge replacement method using a temporary vent according to the present invention.

First, as shown in Figure 4a, the existing railroad bridge 500, the girder 520, the sleeper 530, railroad 540 and railings 550 are installed on the top of the bridge, pier 510 and the present invention is such a girder 520, the sleeper 530, the railroad 540 and the railings 550 are removed and the superstructure 100 is newly installed.

To understand this, the transverse rail 300 for moving the temporary vent 200 between the alternating, pier 510 side (between the span) first to be installed.

The transverse rail 300 is to be extended in the transverse direction but installed so as to be spaced apart from each other in consideration of the position of the upper structure 100 induction phase is installed between the span according to the number of installation of the temporary vents.

That is, when installing a plurality of upper structures by installing a plurality of temporary vents 200 in each span as shown in Figure 1b it can be installed in consideration of the site conditions, such as to install the upper structure more quickly.

The temporary vent 200 is installed to move along the lateral rail 300.

The temporary vent 200 is provided with a roller 220 to move along the rail 300 on the lower surface.

Accordingly, the temporary vent 200 may be directly moved in the horizontal direction along the horizontal rail 300 by the roller 220.

Previously, the temporary construction was installed in such a way that it was installed. In this case, the upper structure had to be moved by using a trolley. The present invention avoids this method and places the induction upper structure 100 on the upper surface of the temporary construction 200. The induction phase superstructure 100 and the temporary vent 200 are to be moved along the transverse rail 300 together.

In this case, the induction phase upper structure 100 can be quickly installed more safely, and the induction phase upper structure 100 can be assembled on the upper surface of the temporary vent 200 to enable more efficient and faster temporary vent operation.

Accordingly, a plurality of temporary supports 211 are provided on the upper surface of the temporary vent 200 to support the inductive upper structure 100, and in FIG. 4A, support means 210 which are jacks for raising the upper structure between the temporary supports 211. ) Is installed on the sliding pad 410 (see FIG. 4D) fixed to the upper surface of the temporary vent.

The height and size of the temporary vent 200 may be made of steel assembly using the size of the upper structure.

In addition, the induction upper structure 100 to be placed on the upper surface of the temporary vent 200 is manufactured as a segment upper structure and brought into the site as shown in FIG.

Next, as shown in FIG. 4B, the segment upper structure is placed on the temporary vent 200 by using a lifting wire, and then assembled on the upper surface of the temporary vent 200 by an induction upper structure 100 installed in one span. Done.

The segment upper structure is installed to be supported on the temporary support 211, the upper surface of the temporary vent 200 is installed.

Thus, the segment superstructure is set in contact with the transverse direction as shown in FIG.

After connecting to each other using a grouting material (140, cast-in-place concrete, etc.) filled in the connecting groove of the upper flange connection of the segment upper structure.

The transverse tension member 130 is inserted into the through hole 112 formed in the trunk portion 110 of the segment upper structure, and is tensioned and fixed to completely integrate with each other.

Accordingly, the upper surface of the upper structure of the segment is provided with a barrier, a railing, and the like, before the sleeper 150 and the railroad line 160 are installed.

Further, the sleeper 150 and the railroad line 160 are installed to induce induction, and the gravel 170 is installed to allow the assembly of the upper structure and the induction in the temporary construction.

As such, when the new guided upper structure 100 is assembled and installed on the upper surface of the temporary vent 200, the weight is not large as compared with lifting the completed guided upper structure. It is effective.

In addition, there is also a structural advantage that does not have to consider the cross-sectional force acting on the induction upper structure 100 assembled by the lifting load.

Next, as shown in Figure 4c is to remove the existing railway bridge (500). Such demolition work may be performed before the preparation of a new induction superstructure 100 at the temporary installation in a temporal and spatial range that does not interfere with the train operation. .

Next, as shown in FIG. 4D, the new induction phase superstructure 100 is moved together with the temporary vent 200 to set the new induction phase superstructure 100 at a position where the existing railway bridge 500 is removed.

As described above, the new inductive upper structure 100 is supported by the temporary support 211, and the positioning means 400 including the sliding pad 410 and the position control means 420 is supported by the support means 210. ) And is installed between the temporary support 211 separately.

Therefore, the new guided upper structure 100 is moved together with the temporary vent 200, and then the position adjusting means 400 is used as shown in FIG. Done.

That is, by raising the support means 210 which is a jack for raising the upper structure, the induction upper structure 100 is raised, and the position control means 420 which is a hydraulic jack connected to the support means 210 is operated to induce the upper structure ( 100) to be set at the correct position in the longitudinal and transverse directions.

When the final position is set to replace the bridge bearings on the bridges, bridges newly replace the new bridge bearings or jacks for lifting the upper structure as it is in the existing bridge bearings to seat the upper structure 100 induction.

Of course, the temporary support 210 is recycled and the position adjustment means 400 is also recycled.

At this time, if the existing railway bridge 500 is replaced with all or part of the upper structure, this also has to proceed in a time and space range that does not interfere with the passage of the train.

When the new induction phase upper structure 100 is installed as shown in FIG. 4e, the temporary vent 200 is returned to its original position, thereby completing the installation of the induction phase upper structure 100.

At this time, the temporary vent 200 may be moved in the longitudinal direction to perform additional induction upper structure 100 replacement work, and in the case of replacing the entire upper structure at once, remove the temporary vent and transverse rails to finish the field work. Done.

Thus, when a plurality of upper structures are installed in the longitudinal and transverse directions as shown in FIG. 5, the trains can be connected by connecting the rails to each other, and the gravel phase is already completed, and thus no additional work is required.

100: induction upper structure 110: body portion
120: upper flange 130: transverse tension material
150: sleeper 160: railroad
170: Gravel 200: Temporary Vent
210: support means 220: roller
300: rail 400: position adjusting means
410: sliding pad 420: position control means
421: hydraulic jack 422: housing
423: hydraulic cylinder 500: conventional ballless bridge

Claims (4)

(a) shifting, installing a transverse rail 300 on the side of the ballless bridge 500 installed in the piers; (b) installing a temporary vent (200) on the transverse rail such that a roller (220) is formed at the bottom to move directly along the transverse rail (300); (c) assembling and completing the induction upper structure 100 on the upper surface of the temporary vent 200; (d) removing the ballless bridge 500 and moving the temporary tent 200 installed on the induction upper structure 100 along the transverse rail 300 to the position where the ballless railway bridge 500 is installed. Seating; And (e) returning the temporary vent 200 along the transverse rail 300.
In the step (d), the sliding pad 410 is fixedly installed on the upper surface of the temporary vent 200, and the supporting means 210 is installed on the inductive upper structure 100 on the upper surface so as to slide on the upper surface of the sliding pad. By connecting the position control means 420 including the hydraulic jack to the support means 210, the support means 210 is slid from the upper surface of the sliding pad 410 by the operation of the position control means 420. To adjust the position of the structure 100,
The support means 210 uses an upper structure lifting jack, and the position control means 420 is configured to include a hydraulic jack 421 and a hydraulic cylinder 423 mounted on the housing 422, the hydraulic pressure The cylinder 423 is connected to the side of the support means 210 to adjust the support means 210, the upper structure is supported by the operation of the hydraulic cylinder 423 to the desired position on the upper surface of the sliding pad 410 Induction virtualization method of railway bridge using temporary vents. The method of claim 1, wherein step (c)
The inductive superstructure 100 is a step of bringing the segment superstructure into the field;
Placing the segment superstructure on an upper surface of the temporary vent 200;
Assembling the segment upper structure laterally to complete the upper structure; And
Induction phase engineering method of a railway bridge using a temporary construction, characterized in that it comprises a; inducing phase of the completed upper structure. delete The method of claim 2,
The segment upper structure is a through-hole 112 in the transverse direction so that the body portion 110 is made of a hollow box structure formed by including the body portion 110 and the upper flange 120 embedded in the EPS (111) therein. Is formed to be made to be integrated with each other by the transverse tension member 130, the upper surface of the body portion 110, the sleeper 150 and the railroad line 160 is installed and the gravel 170 is installed in the segment upper structure of Induction virtualization method of a railway bridge using a temporary vent, characterized in that the assembly and induction ignition on the upper surface of the temporary vent.

Images