KR20190105262A - Fast-hardening track for improving resistance performance against vertical deform and horizontal deform, and construction method for the same - Google Patents

Abstract

The present invention provide a rapid hardening track with improved resistance performance of vertical deformation and horizontal deformation and a construction method thereof, which are possible to improve resistance performance with respect to deformation in a vertical direction and a horizontal direction of a rapid hardening track through installation of a grid geotextile, a flat friction board, an L-shaped friction board, and a small-caliber steel stake on the roadbed when replacing a worn-out ballast track into the rapid hardening track by filling rapid hardening mortar, are possible to maximize tensile strength of the grid geotextile by utilizing the flat friction board, the L-shaped friction board and the small-caliber steel stake, are possible to reduce crack generation of the concrete track through installation of a wire mesh, are possible to control crack width when generating cracks, are possible to uniformly set ballast shoulder part through installation of the L-shaped friction board and a rebar net cover, and are possible to prevent losses of ballast.

Description

FAST-HARDENING TRACK FOR IMPROVING RESISTANCE PERFORMANCE AGAINST VERTICAL DEFORM AND HORIZONTAL DEFORM, AND CONSTRUCTION METHOD FOR THE SAME}

The present invention relates to the construction of a rapid hardening track, and more particularly, a rapid hardening track having improved resistance to vertical deformation and horizontal deformation when the old gravel road track is replaced with a fast hardening track by filling a fast hardening mortar. And a construction method thereof.

In general, it is widely known that a track on which a train or the like travels is provided with an image on a roadbed and a sleeper and a rail disposed on the image. Here, as the track material which distributes the train loads transmitted from the rail and the sleepers to the roadbed and fixes the sleepers at a predetermined position, gravel (or crushed stone) or concrete is used.

It is common for such a track structure to arrange a sleeper on the figure formed on the roadbed, and to attach a pair of rails in parallel at regular intervals on it. Ballast constituting the tracks, such as ballast (Ballast), slab (Slab), etc. are selected in consideration of various conditions of the route. In particular, ballast ballasts using ballasts such as gravel and crushed stone are widely known. These ballasts such as gravel and crushed stone keep the sleepers securely, evenly distribute the load transmitted from the train through the rails and sleepers to the roadbed, make the tracks elastic, and easily perform maintenance work such as tamping. It has a function of improving the drainage of the orbit and preventing the generation of dung or weeds.

Recently, as the speed of the train increases, the track structure is gradually changed from gravel track to concrete slab track laying. For example, when laying tracks, such as high-speed railway, distortion of the track becomes a big problem, and in the case of a general gravel road using gravel, problems such as gravel scattering during the passage of a train have emerged.

In Korea, due to the high speed of the train and the aging of the track, the maintenance cost is increasing rapidly, and it is urgent to apply the reinforcement plan to solve this problem.

In order to increase the strength of the gravel track and reduce the maintenance cost, a rapid hardening track has been developed, and this rapid hardening track is a construction method by filling a rapid hardening mortar on the existing gravel track. At present, studies are being actively conducted to apply such a rapid hardening track to a high speed craft, and there is a danger that excessive vertical deflection occurs in the construction joint of the fast hardening track.

This rapid hardening track is to enhance the strength of the existing gravel track and reduce the maintenance cost.It is constructed by filling the existing gravel track in the existing gravel track within 3 to 4 hours of train blocking time, thus preventing the operation of the train. Has the advantage of not giving. For example, the rapid hardening tracks constructed in the earthworks section are constructed on the existing gravel trackbed, and the structure of the rapid hardening tracks may be classified into sleepers, filling layers, gravel layers, penetration layers, and roadbeds. Since the construction of the earthquake fast track slab must be completed within the train blocking time due to the construction characteristics, the construction extension is constructed in 25 m that can be installed within the blocking time, and the longitudinal interval between these sleepers is 0.65 m.

This rapid hardening track method is a method of converting existing gravel beds from washed-out gravel tracks into washed gravel beds, and then filling the voids between the gravel layers with cemented cement mortar to convert them into concrete tracks. It is a method to reduce the maintenance work of existing ships by improving the existing track structure.

1 is a view showing a structure of a rapid curing track according to the prior art, Figure 1 a) is a perspective view, Figure 1 b) is a cross-sectional view.

Referring to FIG. 1, the rapid curing track 10 according to the related art includes a roadbed 11, a reinforced roadbed 12, a ballast 13, and a fill layer 14. And a sleeper (Sleeper) 15, the rail fastening device 16 and the rail 17 is installed on the sleeper (15).

More specifically, the core components of the fast curing orbit are nonwoven fabric, scalp gravel, cemented cement mortar, wide sleeper, elastic fastening device to prevent leakage of cemented cement mortar, and the construction order to which each component is applied is as follows.

First, the existing donor gale is demolished and the roadbed is compacted. Then, after installing the non-woven fabric and formwork, after installing the wide sleepers, spraying cleaning gravel. Thereafter, image compaction is performed and linear correction is performed. Next, the track stabilization is performed while the train is running slowly for about two weeks, and then the rapid hardening track is completed by injecting cemented carbide mortar.

Meanwhile, as a prior art, Korean Patent No. 10-1780224, filed and registered by the applicant of the present invention, discloses a method of constructing a concrete long sleeper block for rapid hardening track to improve railway track in consideration of train operation. The invention named "is disclosed, but it demonstrates with reference to FIG. 2 and FIG.

2 is a view showing a concrete long sleeper block for fast curing tracks to improve the railway track in consideration of the train operation according to the prior art, Figure 2a is a perspective view, Figure 2b is a vertical cross-sectional view. .

Referring to Figure 2a), in consideration of train operation according to the prior art, the concrete long sleeper block for fast tracks to improve the rail track, including a single concrete long sleeper 20 and concrete panel 30 In addition, the unitary concrete long sleeper 20 includes a first unitary concrete long sleeper 20a and a second unitary concrete long sleeper 20b.

The rail seating portion 25 is formed to protrude from the upper portion of the single-type concrete long sleeper 20, and the buried portion is formed so as to protrude an anchor to the lower portion of the single-type concrete long sleeper 20 Concrete long sleeper 20 is integrated with the concrete panel 30.

The first monolithic concrete long sleeper 20a is formed at both ends of the concrete panel 30 with irregularities formed at one side, and the second monolithic concrete long sleeper 20b is formed with both uneven parts at both sides and disposed at both ends. At least one is disposed between the first unitary concrete long sleepers 20a. In this case, when the unitary concrete long sleeper 20 is disposed, an input hole 26 for injecting gravel or rapid hardening non-condensed mortar is formed by the uneven portion.

As shown in b) of FIG. 2, the first and second unitary concrete long sleepers 20a and 20b each have a unitary concrete long sleeper body 21, an uneven portion 22, a lower anchor 24, and a rail. It includes a seating portion 25, and includes a buried reinforcing bar (23). The second unitary concrete long sleeper 20b is substantially the same except that the uneven portion 22 is formed on both sides of the first unitary concrete long sleeper 20a.

The unitary concrete long sleeper body 21 of the first and second unitary concrete long sleepers 20a and 20b has an area larger than that of the upper surface so that an inclined surface is formed on the side surface, and an uneven portion 22 is formed on the inclined surface. ) Is formed.

The first and second unitary concrete long sleepers 20a and 20b are connected to the embedded reinforcing bar 23 and the embedded reinforcing bar 23 in the state embedded therein, and the first and second unitary concrete long sleepers 20a and 20b. It may include a lower anchor 24 exposed a predetermined length to the bottom surface. At this time, the lower anchor 24 is preferably disposed to avoid the position of the rail seating portion 25 to be stored in a stacked form when transporting or storing the first and second unitary concrete long sleepers (20a, 20b).

When the first and second unitary concrete long sleepers 20a and 20b are embedded and cured in the concrete panel 30 by the lower anchor 24, the inclined surface and the uneven portion 22, the first and second unitary concrete When driving the train because it can enhance the up, down, left and right support force of the long sleepers (20a, 20b), and the binding force, that is, the adhesion between the first and second unitary concrete long sleepers (20a, 20b) and the concrete panel (30) Due to the generated pressure and vibration, it is possible to prevent the gap between the first and second unitary concrete long sleepers 20a and 20b and the concrete panel 30.

The first and second unitary concrete long sleepers (20a, 20b) is preferably manufactured to have a larger width and weight than conventional concrete sleepers. In other words, by increasing the weight and the cross section of the concrete sleeper, the warpage of the train is prevented from running due to its own weight, and by increasing the cross section, the area for transmitting the load of the train to the road is increased, thereby achieving a stable track. have.

In the case of the concrete long sleeper block 20, the spacing between the first and second unitary concrete long sleepers 20a and 20b may be more closely arranged, and thus the first and second unitary concrete long sleepers 20a may be disposed. , 20b) can increase the stiffness resistant to the transverse pressure acting in the horizontal direction.

In addition, it is useful for stabilization of the track by preventing warpage of the first and second unitary concrete long sleepers (20a, 20b), the concrete panel in proportion to the length of the concrete long sleeper block 20 according to an embodiment of the present invention The usage amount of 30 can be greatly reduced.

In manufacturing the concrete long sleeper block 20, the first and second unitary concrete long sleepers 20a, 20b are filled with a fast-curing non-shrink mortar such that the height of the concrete panel 30 is embedded in the concrete panel 30 by approximately 2/3. And by curing the concrete long sleeper block 20 can be easily manufactured.

In addition, the concrete panel 30 formed by injecting the rapid-hardening mortar mortar is formed so that the height of the first and second single-type concrete long sleepers (20a, 20b) is immersed in the rapid-hardening mortar mortar about 2/3 Is poured in.

The rail fastening device 40 fastened to the rail seating part 25 may employ | adopt various things. Therefore, according to the type of the rail fastening device 40 seated on the first and second unitary concrete long sleepers 20a and 20b, the shape of the rail seating portion 25 may also vary in various ways. 20a, 20b) can be prepared.

In addition, Figure 3 is a flow chart showing the construction method of the concrete long sleeper block for rapid curing track shown in FIG.

Referring to FIG. 3, a method of constructing a concrete long sleeper block for rapid hardening orbit for improving a railway track in consideration of a train operation according to the related art includes a rapid hardening track of a section of a gravel road in a state where a train can be operated. As a method of replacing construction with concrete long sleeper blocks, first, prepare a part of the existing gravel road tracks with rails installed (S11), and then, gravel and sleepers of some sections of the gravel road tracks from the roadbed and rails It removes and exposes a roadbed (S12).

Next, the exposed roadbed is compacted with a compaction apparatus, and after the long fiber is installed on the compacted roadbed, formwork is installed (S13), and then, supporters are installed on both sides of the formwork, and a vertical adjustment bolt is mounted on the supporter. (S14).

Next, the concrete fasteners for fast cure orbits formed with an input hole formed on the top of the formwork are tightened with the vertical adjustment bolts and fixed (S15), and then the formwork is closely adhered to the side of the fasteners for the concrete braces. To fix it (S16).

Next, by filling the gravel through the input hole of the concrete long sleeper for fast curing orbit (S17), and when the filling of the gravel is completed, the vertical adjustment bolt is rotated in the release direction to relax (S18) Then, by performing a compaction operation with the load of the train running for 7-14 days to stabilize the concrete phase (S19). At this time, if the track deflection occurs in the stabilization process of the concrete, the track is corrected by using the vertical adjustment bolt to replenish the gravel.

Next, the final track detection is carried out, if the track distortion exceeds the reference value, the track correction operation is repeated (S20), after which the fast curing non-shrink mortar through the input hole of the concrete long sleeper Injecting and curing to form a concrete panel (S21), and then, the second steel is poured through the injection hole of the concrete long sleepers for the rapid hardening track (S22).

Next, after the welding is manufactured to the rail, the rail is replaced by carrying the rail to the site (S23). Thereafter, the finishing operation is performed to smooth the surface of the upper surface of the concrete panel (S24), and install a drainage path using general concrete in the concrete panel side portion (S25).

After all, according to the concrete long sleeper block and the construction method for the fast curing track to improve the railway track in consideration of the train operation according to the prior art, in order to improve the gravel road track within the train blocking time in consideration of the train operation After installing the concrete long sleeper block, the concrete long sleeper block for the rapid hardening track can be formed by injecting the rapid hardening non-shrinkable mortar into the concrete panel, thereby reducing the construction time of the road and the rapid maintenance of the road. By minimizing the interruption of trains, and by tightly placing concrete long sleepers, it is possible to increase the resistance against vertical load of the train while reducing the amount of rapid hardening non-shrinkable mortar, and deform the long concrete sleepers. Or to prevent warping, and you can also Even disposed Chom can ensure running stability, it is possible to reduce the construction cost and shortening the construction time of the rapid curing orbit.

However, when converting the old gravel track according to the prior art to the concrete track through the rapid hardening track method, there is a problem due to the roadbed variability, track lateral resistance and plain concrete slab.

First, the problems associated with roadbed volatility are as follows. In other words, the gravel tracks to which the rapid hardening trajectories may be applied have a relatively good degree of compaction of the roadbed, and additional compaction is performed during the construction of the rapid hardening tracks. However, the roadbed condition is not considered to be uniform over the whole section, and there is a possibility of vertical settlement. Accordingly, track settling occurs when settlement occurs in the earthworks, and this track setset hinders the running stability of the train. In addition, when the transition from the existing gravel track to the fast curing track due to the injection of cleaning gravel and cemented carbide cement mortar, the track weight increases, which may change the support conditions of the roadbed.

Second, the problems associated with orbital lateral resistance are as follows. In other words, the fast-curing track is mounted on the roadbed without any additional fixing device, and there is no problem because it is a continuum structure in the train driving direction. do. In particular, securing track lateral resistance in a curved section is important in terms of track safety. For example, a sleeper designed to be 2.8 m long among the wide sleepers for the fast-track track, and in the case of the sleeper applied to the fast track track and the curved section, the end of the sleeper is exposed so that the shoulder portion of the gravel can be structured to form a resistance mechanism. There is a need.

Third, the problems associated with plain concrete slabs are as follows. That is, since cement cement mortar is injected without applying additional reinforcement to the washing gravel, the concrete track after the rapid hardening technique is concrete in a dry state. Therefore, in case of cracking on bare concrete slab due to dry shrinkage, change of outside air, poor contact with roadbed, crack control is impossible, and expansion of crack width worsens track usability. There is a problem in that it is arranged for the purpose of applying the track.

Republic of Korea Patent No. 10-1780224 (filed date: November 9, 2015), the title of the invention: "Construction method of concrete long sleeper block for rapid curing track to improve railway track in consideration of train operation" Republic of Korea Patent No. 10-1781045 (application date: August 18, 2016), the title of the invention: "Asphalt concrete track with geotextile and steel pipe track displacement resistance device and its construction method" Republic of Korea Patent No. 10-1684665 (Application Date: December 15, 2014), the title of the invention: "Method for constructing a rapid hardening orbit of the gravel-free non-exchange method using a layer separation injection" Republic of Korea Patent No. 10-595429 (application date: February 24, 2004), the title of the invention: "Rail rail concrete phase track structure and its construction method" Republic of Korea Patent No. 10-405231 (filed February 15, 2001), the title of the invention: "Replacement method from the gravel track to concrete track" Republic of Korea Patent No. 10-595429 (application date: February 24, 2004), the title of the invention: "Rail rail concrete phase track structure and its construction method" Republic of Korea Patent Publication No. 2003-65897 (published: August 9, 2003), the title of the invention: "Structure of concrete phase track and its construction method" Republic of Korea Patent Publication No. 2014-94863 (published: July 31, 2014), the title of the invention: "gravel track improvement method" Japanese Patent Application Laid-open No. 2016-183468 (published: October 20, 2016), title of the invention: "Orbit displacement suppression structure and orbital displacement suppression method" Japanese Patent No. 4,057,338 (filed April 26, 2002), title of the invention: "Method and apparatus for updating a ballast image"

The technical problem to be solved by the present invention for solving the above problems is, when filling the hardening mortar to replace the old gravel trajectory with a rapid hardening orbit, lattice type geotextiles, flat friction plate, L-shaped friction plate on the roadbed And through the installation of small diameter steel piles to provide a rapid curing track and its construction method that can improve the resistance performance against the vertical and horizontal deformation of the rapid curing track.

Another technical problem to be achieved by the present invention is to reduce the occurrence of cracks in the concrete track through the wire mesh installation, and to control the crack width when the crack occurs, the rapid curing track improved the resistance performance of the vertical and horizontal deformation and its It is to provide a construction method.

Another technical problem to be achieved by the present invention is to install the L-shaped friction plate and the reinforcing bar cover to uniformly set the shoulder portion, to prevent the loss of the box, improve the resistance performance of the vertical deformation and horizontal deformation It is to provide a fast curing track and a construction method thereof.

As a means for achieving the above-described technical problem, the rapid cure orbital to improve the resistance performance of the vertical and horizontal deformation according to the present invention, the vertical displacement of the rapid cure orbit on the upper surface of the roadbed in which the old gravel trajectory is removed Lattice type geotextiles are installed on the upper surface of the roadbed made of compaction; A plate-like friction plate inserted into the subgrade for fixing the grid type geotextile; An L-shaped friction plate installed on an upper surface of the flat friction plate; A small diameter steel pile installed for secondary fixing of the grid type geotextile, plate type friction plate, and L type friction plate, and increasing resistance in the vertical direction and the horizontal direction; A wide sleeper arranged and installed on a rail using a rail fastening device; A wire mesh installed on the cleaning gravel installed up to the bottom of the wide sleeper to reduce crack occurrence and control crack width; And superfast cement mortar injected between the pores of the cleaning gravel to complete the rapid hardening trajectory, reinforcing the vertical deformation by the lattice type geotextile, and the flat friction plate, the L type friction plate and the small diameter steel pile. By reinforcing the horizontal deformation.

Here, the lattice type geotextile is a geogrid for ground reinforcement with sufficient tensile strength to control or suppress the vertical deformation of the fast cure orbit, and has a horizontal or vertical spacing of 22.5 so that the gravel does not pass through the gravel when the gravel is laid. It is preferred that a grid size of mm or less is applied.

Here, the plate-like friction plate, the plate-shaped friction plate body is formed of a plate-like steel material so that the friction force is formed on the upper surface of the roadbed is installed on the grid geotextile; An inclined insert bundle formed in the flat friction plate body to first fix the lattice type geotextiles on the subgrade; And it may include a perforated hole at a predetermined interval on the plate-shaped friction plate body for the installation of the small diameter steel pile.

Here, the L-shaped friction plate is characterized in that the primary fixation of the grid-like geosynthetic fiber and the strengthening of the binding of the plate-shaped friction plate, and acts as a side form when cemented cement mortar.

Here, the L-type friction plate, L-shaped friction plate body is formed of a steel material so that the friction force is formed on the upper surface of the roadbed is installed on the flat plate friction plate; An inclined insert bundle formed in the L-shaped friction plate body to first fix the lattice type geotextiles on the subgrade; Holes drilled at regular intervals on the L-shaped friction plate body for installation of the small diameter steel pile; A first fixing ring formed at the horizontal end of the L-shaped friction plate body such that the horizontal end of the L-shaped friction plate is fixed to the horizontal end of the flat friction plate; And it may include a second fixing ring formed on the vertical end of the L-shaped friction plate body.

Here, the small-diameter steel pile is preferably installed by driving in the inclined direction using a hole previously punched in the flat plate and the L-shaped friction plate at a predetermined interval.

Here, the small diameter steel pile is characterized in that the scale is formed on the side to check the penetration length to adjust the amount of penetration in accordance with the line conditions and roadbed condition.

Rapid curing orbital to improve the resistance performance of the vertical and horizontal deformation according to the present invention, the non-woven fabric is installed on the upper surface of the lattice type geosynthetic fiber and the side of the L-shaped friction plate to prevent the cemented cement mortar to be injected It may further comprise.

In this case, the wire mesh is preferably disposed at the center of the wide sleeper and the end of the wide sleeper except for the bottom position of the seat of the rail in order to prevent damage during tamping.

The rapid hardening track which improves the resistance performance of the vertical deformation and the horizontal deformation according to the present invention may further include a reinforcing bar network cover which is installed to ensure uniformity of the shoulder portion in which the gravel shoulder gravel is installed.

Here, it is possible to secure a concrete compressive strength of 5MPa or more when curing for 2 hours after the cemented cement mortar.

On the other hand, as another means for achieving the above-described technical problem, the construction method of the rapid curing track to improve the resistance performance of the vertical deformation and the horizontal deformation according to the present invention, a) compacting the top surface of the roadbed to remove the old gravel road track Performing; b) installing a grid-like geosynthetic fiber on the top surface of the compacted roadbed so as to control the vertical displacement of the rapid hardening track; c) inserting and installing a plate-like friction plate into the subgrade for primary fixing of the grid type geotextiles; d) installing an L-shaped friction plate on an upper surface of the flat friction plate; e) secondary fixing the lattice type geotextile, flat plate friction plate and L type friction plate, and inserting small diameter steel piles to increase resistance in the vertical and horizontal directions; f) installing a nonwoven fabric on the upper surface of the lattice type geosynthetic fiber and on the side of the L-shaped friction plate to prevent leakage of cemented carbide mortar to be injected; g) arranging the wide sleepers for the fast curing track and installing them on the rails using a rail fastening device; h) installing wire mesh after the washing gravel is primarily installed to the bottom of the wide sleeper to reduce crack occurrence and control crack width; i) secondly installing washing gravel up to the upper side of the L-shaped friction plate, and then performing linear correction and stabilization of track conditions; j) installing gravel shoulder gravel to increase friction and horizontal resistance, and install rebar mesh cover to ensure uniformity of the shoulder shoulder; And k) completing the rapid hardening trajectory by injecting cemented mortar with a superhard cement into the pores between the washing gravel.

Here, the L-shaped friction plate of step d) may serve as a side formwork during the primary fixing of the lattice type geotextile and strengthening the binding of the flat plate friction plate, and cemented cement mortar.

Here, the small diameter steel pile of step e) is characterized in that it is installed by driving in the inclined direction using a hole previously punched in the plate-shaped friction plate and L-shaped friction plate at a predetermined interval.

Here, the installation operation may be performed after fastening based on 2 to 4 wide sleepers in step g).

Here, the wire mesh of the step h) is preferably disposed at the center of the wide sleeper and the end of the wide sleeper, except for the bottom position of the bottom surface of the rail in order to prevent damage during tamping.

Here, in step i), the track is left for 2 weeks and the train runs slowly for linear correction and stabilization of the gravel track state.

Here, in step j), to install the gravel shoulder gravel to increase the friction between the plate-shaped friction plate and L-shaped friction plate and to increase the lateral resistance of the track, and to prevent the loss of the gravel shoulder gravel It can be fixed to the L-shaped friction plate.

Here, in step k) it can ensure the concrete compressive strength of 5MPa or more when hardening for 2 hours after the cemented cement mortar.

According to the present invention, when the old gravel trajectory is replaced with a rapid hardening track by filling a fast hardening mortar, the rapid hardening track through the installation of lattice type geotextile, flat plate friction plate, L type friction plate and small diameter steel pile It can improve the resistance against deformation in the vertical and horizontal directions.

According to the present invention, it is possible to maximize the tensile strength of the grid type geotextiles by utilizing a flat plate friction plate, L-shaped friction plate and small diameter steel pile.

According to the present invention, it is possible to reduce the occurrence of cracks in the concrete track by installing the wire mesh, and to control the crack width when the crack occurs.

According to the present invention, through the installation of the L-shaped friction plate and the reinforcing bar cover can be uniformly set the shoulder portion, it is possible to prevent the loss of the box.

1 is a view showing the structure of a fast curing track according to the prior art.
Figure 2 is a view showing a concrete long sleeper block for fast curing tracks to improve the railway track in consideration of the train operation according to the prior art.
FIG. 3 is a flowchart illustrating a method of constructing the concrete long sleeper block for the fast curing track illustrated in FIG. 2.
4 is a cross-sectional view showing a rapid hardening trajectory to improve the resistance performance of the vertical deformation and the horizontal deformation according to an embodiment of the present invention.
FIG. 5 is a diagram illustrating a geotextile installed on a roadbed in a fast curing track having improved resistance to vertical deformation and horizontal deformation according to an embodiment of the present invention.
FIG. 6 is a view illustrating a flat plate friction plate in a rapid hardening track having improved resistance to vertical deformation and horizontal deformation according to an embodiment of the present invention.
FIG. 7 is a view illustrating an L-type friction plate in a rapid hardening track having improved resistance performance of vertical deformation and horizontal deformation according to an embodiment of the present invention.
FIG. 8 is a view specifically showing an L-shaped friction plate installed on a flat friction plate in a rapid hardening track having improved resistance to vertical deformation and horizontal deformation according to an embodiment of the present invention.
FIG. 9 is a diagram illustrating a wire mesh in a rapid hardening track having improved resistance performance of vertical deformation and horizontal deformation according to an exemplary embodiment of the present invention.
FIG. 10 is a diagram illustrating a reinforcing bar net cover for preventing gravel loss in a fast curing track having improved resistance to vertical deformation and horizontal deformation according to an embodiment of the present invention.
FIG. 11 is a view illustrating a wide sleeper in a rapid hardening track having improved resistance to vertical and horizontal strains according to an exemplary embodiment of the present invention.
12 is an operation flowchart illustrating a method of constructing a rapid hardening track having improved resistance performance of vertical deformation and horizontal deformation according to an embodiment of the present invention.
13A to 13M are cross-sectional views illustrating in detail a method of constructing a rapid hardening track having improved resistance to vertical deformation and horizontal deformation according to an embodiment of 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. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. 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.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

[Quick Curing Orbit (100) Improves Resistance to Vertical and Horizontal Strains]

4 is a cross-sectional view showing a rapid hardening trajectory to improve the resistance performance of the vertical deformation and the horizontal deformation according to an embodiment of the present invention.

Referring to FIG. 4, the rapid curing track 100 having improved resistance to vertical deformation and horizontal deformation according to an embodiment of the present invention includes a roadbed 110, a geotextile 120, a flat friction plate 130, L-shaped friction plate 140, steel pile 150, non-woven fabric 160, wide sleeper 170, rail fastening device 180, rail 190, cemented carbide mortar 200, cleaning gravel 210, The wire mesh 220, the shoulder shoulder gravel 230 and the reinforcing bar network cover 240.

Geosynthetic fiber 120 is installed on the upper surface of the roadbed 110, the compaction is made to control the vertical displacement of the rapid curing track on the upper surface of the roadbed 110, the old gravel road track 300 is removed. In this case, the geosynthetic fiber 120 is a grid reinforcement geogrid that ensures sufficient tensile strength to control or suppress the vertical deformation of the rapid curing orbit, the tensile of the geosynthetic fiber 120 Strength can control or suppress the vertical deformation of the rapid cure track. Here, the roadbed 110 is made of the top surface compaction in the state in which the old gravel trajectory is removed.

Flat plate friction plate 130 is formed in the form of a flat plate (flat) is installed on the geosynthetic fiber 120, the geosynthetic fiber 120 is fixed on the roadbed (110). The flat plate friction plate 130 is a fixing device for maximizing the tensile strength of the geotextile 120, is inserted into the roadbed 110 for the primary fixing of the grid-like geotextile 120.

The L-shaped friction plate 140 is installed on the upper surface of the flat friction plate 130. At this time, the L-shaped friction plate 140 serves as a side form when the primary fixation of the grid-like geotextile 120 and the strengthening of the binding of the plate-shaped friction plate 130 and the cemented cement mortar 200 is injected.

Small diameter steel pile 150 is installed for the secondary fixed, vertical and horizontal resistance performance of the grid-like geotextile 120, flat plate friction plate 130 and L-shaped friction plate 140. At this time, the small diameter steel pile 150 is installed by driving in the inclined direction by using a hole (Hole) pre-drilled at predetermined intervals in the flat friction plate 130 and L-shaped friction plate 140.

The nonwoven fabric 160 is installed on the upper surface of the lattice type geotextile 120 and the side of the L-shaped friction plate 140 to prevent the leakage of the cemented carbide cement mortar 200 to be subsequently injected.

The wire mesh 220 is installed on the cleaning gravel 210 which is installed up to the bottom of the wide sleeper 170 in order to reduce crack generation and control crack width. In this case, the wire mesh 220 is preferably disposed at the central portion of the wide sleeper 170 and the end of the wide sleeper 170 except for the bottom position of the bottom surface of the rail 190 to prevent damage during tamping.

The wide sleepers 170 are arranged and installed on the rails 190 using the rail fastening device 180.

Reinforcing bar network cover 240 is installed to ensure the uniformity of the shoulder portion in which the shoulder shoulder gravel 230 is laid.

The cemented carbide mortar 200 is injected between the pores of the cleaning gravel 210 to complete the rapid hardening track 100. Thereafter, after the cemented mortar 200 is poured for 2 hours, the compressive strength of concrete of 5 MPa or more may be secured.

Accordingly, the vertical strain may be reinforced by the lattice type geotextile 120, and the horizontal strain may be reinforced by the flat plate friction plate 130, the L type friction plate 140, and the small diameter steel pile 150. .

In the case of the rapid curing track 100 to improve the resistance performance of the vertical deformation and the horizontal deformation according to an embodiment of the present invention, to improve the aging gravel road track, the geosynthetic fiber 120, the flat friction plate 130 ), By applying reinforcing elements such as L-shaped friction plate 140, small diameter steel pile 150, wire mesh 220, reinforcing existing gravel tracks, thereby improving the resistance to the vertical and horizontal deformation of the track You can.

On the other hand, Figure 5 is a diagram illustrating the geosynthetic fiber installed on the roadbed in the rapid curing track improved the resistance performance of the vertical deformation and the horizontal deformation according to an embodiment of the present invention.

Referring to FIG. 5, the geotextiles 120 are installed on the roadbed 110 in the rapid curing track 100 that has improved the resistance performance of the vertical deformation and the horizontal deformation according to the embodiment of the present invention. 120 is a geogrid, and is formed in a lattice shape. Therefore, it is possible to control or suppress the vertical deformation of the rapid hardening orbit through the tensile strength of the ground reinforcement geosynthetic fiber 120 which is sufficiently secured tensile strength.

In addition, a lattice size having a horizontal or vertical spacing of 22.5 mm or less is preferable so that gravel does not pass through the gravel when laying gravel. For example, a minimum lattice size is applied because the minimum gravel size is 22.5 mm. .

In addition, a fixing device for maximizing the tensile strength of the geosynthetic fiber 120 is required, and as components thereof, a flat plate friction plate 130, an L type friction plate 140, a wire mesh 220 and Rebar network cover 240 is applied.

FIG. 6 is a view illustrating a flat plate friction plate in a rapid hardening track having improved resistance to vertical deformation and horizontal deformation according to an embodiment of the present invention, and FIG. 7 is a view illustrating vertical deformation and horizontal deformation according to an embodiment of the present invention. FIG. 8 is a view illustrating an L-shaped friction plate in a rapid hardening track having improved resistance performance, and FIG. 8 is installed on a flat friction plate in a fast hardening track having improved resistance to vertical and horizontal strains according to an embodiment of the present invention. It is a figure which shows an L type friction plate concretely.

6 a) is a plan view, and FIG. 6 b) is a front view. Referring to FIG. 6, the plate friction plate 130 includes a plate friction plate body 131, an inclined insert bundle 132, and a perforation hole. 7, a) in FIG. 7 is a plan view, and b) in FIG. 7 is a front view. Referring to FIG. 7, the L-shaped friction plate 140 is an L-shaped friction plate body 141, inclined. It includes a mold insertion bundle 142, a drilling hole 143, the first fixing ring 144 and the second fixing ring 145.

As shown in Figure 6 and 7, the flat friction plate 130 and L-shaped friction plate 140 has a triangular inclined insert bundle for fixing the geotextile 120 to the roadbed 110 first As the friction plate, the first stage is provided with a flat plate friction plate 130 shown in FIG. 6, and the second stage is provided with an L-shaped friction plate 140 shown in FIG. For example, as shown in Figure 8, it is preferable to set the same size and spacing of the triangle in the plane so that the insertion between the two friction plates (130, 140). As shown in a) of FIG. 8, they may be formed in the same direction, or as shown in b) of FIG. 8.

Specifically, as shown in Figure 6, the plate-shaped friction plate body 131 of the plate-shaped friction plate 130 is formed of a plate-like steel to form a friction force on the upper surface of the roadbed 110, the grid geotextile Is installed on the 120, the inclined insert bundle 132 is formed in the flat friction plate body 131 to primary fix the lattice type geosynthetic fiber 120 on the subgrade 110, The drilling holes 133 are formed at regular intervals on the flat friction plate body 131 for the installation of the small diameter steel pile 150.

As illustrated in FIG. 7, the frictional force is formed on the upper surface of the roadbed 110 of the L-shaped friction plate 140, and is formed on the flat friction plate 130, and the inclined insert bundle 142. ) Is formed in the L-shaped friction plate body 141 to primarily fix the grid-like geosynthetic 120 on the subgrade 110, and the drilling hole 143 is the small diameter steel pile 150. For the installation of the L-shaped friction plate body 141 is formed at regular intervals. In addition, the first fixing ring 144 is formed at the horizontal end of the L-shaped friction plate body 141 so that the horizontal end of the L-shaped friction plate 140 can be fixed to the horizontal end of the plate-shaped friction plate 130. The second fixing ring 145 is formed at the vertical end of the L-shaped friction plate body 141.

In addition, a plurality of holes (Hole) are previously drilled in the plate-shaped friction plate 130 and the L-shaped friction plate 140 at predetermined intervals so that the small diameter steel pile 150 may be installed.

In addition, the L-shaped friction plate 140 may be utilized as a side form for subsequent pouring cemented carbide mortar.

In addition, the small diameter steel pile 150 serves to secure the secondary of the civil fiber 120 and the two friction plates (130, 140), thereby maximizing the tensile strength of the civil fiber (120), , The frictional force of the two friction plates (130, 140) can be maximized.

In this case, two-direction (vertical and horizontal) components can be formed by installing the small diameter steel pile 150 in an inclined direction, thereby providing resistance to orbital deformation in each direction.

In addition, the scale is formed on the side of the small diameter steel pile 150, the penetration length can be confirmed, thereby, the amount of penetration can be adjusted according to the line conditions and roadbed conditions.

On the other hand, Figure 9 is a diagram illustrating a wire mesh in the rapid curing orbit improved the resistance performance of the vertical deformation and the horizontal deformation according to an embodiment of the present invention.

In the case of the rapid curing orbit which improves the resistance performance of the vertical deformation and the horizontal deformation according to the embodiment of the present invention, as shown in FIG. 9, a wire mesh 220 is provided. That is, cracks may occur in the fast track orbit 100 that is a concrete track due to drying shrinkage and changes in outside air, and the wire mesh 220 may be applied to control the crack width when cracks are generated or cracks are generated. Usability of the fast curing track 100, which is an orbit, can be improved.

Specifically, as shown in FIG. 13i to be described later, the wire mesh 220 is installed at the time of installing the first washing gravel 210, and at this time, the wire mesh 220 at the time of tamping in the case of the rail seating position. ), So that the wire mesh 220 may not be installed in the left and right 30 cm sections (60 cm each of the left and right sides) with respect to the center of the rail seating surface.

On the other hand, Figure 10 is a diagram illustrating a reinforcing bar net cover for preventing gravel loss in the fast curing tracks to improve the resistance performance of the vertical and horizontal deformation according to an embodiment of the present invention.

In the case of the rapid hardening track having improved resistance to the vertical deformation and the horizontal deformation according to the embodiment of the present invention, the gravel is laid on the shoulder of the island, and the rebar as shown in FIG. 10 to prevent the gravel loss of the shoulder. Install the mesh cover 240. Specifically, in order to increase the friction force, it is necessary to form gravel shoulders by installing gravel on the upper surface of the flat friction plate 130 and the L-shaped friction plate 140, and the shoulder shoulders thus formed may contribute to the improvement of the lateral resistance. At this time, in order to form a uniform shoulder shoulder, the rebar mesh cover 240 for preventing gravel shoulder gravel loss is required, as shown in Figure 10 is installed a rebar mesh cover 240. In this case, the rebar network cover 240 may be formed in various shapes.

In addition, as shown in FIG. 7 described above, since the second fixing ring 145 is formed at the vertical end of the L-shaped friction plate 140, after laying the gravel shoulder gravel, the rebar mesh cover 240 ) Is fixed to the second fixing ring 145 of the L-shaped friction plate 140, it is possible to prevent the loss of the shoulder shoulder gravel.

On the other hand, Figure 11 is a view illustrating a wide sleeper in the rapid curing orbit improved the resistance performance of the vertical deformation and the horizontal deformation according to an embodiment of the present invention.

In the rapid cure orbit, which improves the resistance performance of the vertical deformation and the horizontal deformation according to the embodiment of the present invention, it is preferable to replace the existing old gravel trajectory 300 to use the wide sleeper 170 shown in FIG. As a result, it is possible to construct a rapid hardening track having improved vertical and horizontal deformation resistance performance.

Accordingly, in the case of the rapid curing track which improves the resistance performance of the vertical deformation and the horizontal deformation according to the embodiment of the present invention, when filling the rapid curing mortar to replace the old gravel road track with the rapid curing track 100, roadbed The vertical and horizontal directions of the rapid hardening orbit 100 through the installation of the lattice type geotextile 120, the flat friction plate 130, the L-shaped friction plate 140 and the small diameter steel pile 150 on the 110. The resistance to deformation can be improved, and further, the plate-like friction plate 130, the L-shaped friction plate 140, and the small-diameter steel pile 150 are used to maximize the tensile strength of the grid type geotextile 120. Can be. In addition, in the case of the rapid curing track to improve the resistance performance of the vertical deformation and the horizontal deformation according to an embodiment of the present invention, the wire mesh 220 is installed to reduce the crack occurrence of the concrete track, and to control the crack width when the crack occurs It can be, through the installation of the L-shaped friction plate 140 and the reinforcing bar net cover 240 to uniformly set the shoulder portion, it is possible to prevent the loss of the box.

[Method of Construction of Rapid Curing Track with Improved Resistance to Vertical and Horizontal Deformation]

12 is an operation flowchart showing a method of constructing a rapid hardening track having improved resistance performance of vertical deformation and horizontal deformation according to an embodiment of the present invention, and FIGS. 13A to 13M are vertical deformations according to embodiments of the present invention, respectively. And it is sectional drawing for demonstrating the construction method of the rapid hardening track which improved the resistance performance of horizontal deformation in detail.

12, 13A to 13M, the construction method of the rapid curing track to improve the resistance performance of the vertical deformation and the horizontal deformation according to an embodiment of the present invention is a geotextile 120, flat plate and L-shaped friction plate ( 130, 140), the small diameter steel pile 150, the wire mesh 220 and the reinforcement mesh cover 240 for preventing the shoulder loss is applied, the construction sequence of the rapid hardening track 100 is as follows.

 First, as illustrated in FIG. 13A, the old gravel road track 300 is removed (S110).

Next, as shown in Figure 13b, the old road surface gravel 110 to remove the old gravel road track 300 is removed (S120).

Next, the geotextile 120 is installed (S130). Specifically, as shown in Figure 13c, the geogrid, which is a grid-like geotextile 120 is installed on the upper surface of the roadbed 110 made of compaction.

Next, the plate-shaped friction plate 130 is installed on the upper surface of the roadbed 110 (S140). Specifically, as shown in FIG. 13D, the plate-like friction plate 130 is inserted into the roadbed 110 for the first fixing of the grid type geotextile 120.

Next, the L-shaped friction plate 140 is installed on the upper surface of the roadbed 110 (S150). Specifically, as shown in Figure 13e, L for strengthening the binding of the first fixed and flat plate friction plate 130 of the grid-like geosynthetic 120, and the cemented carbide mortar (200) when forming a side mold The type friction plate 140 is installed.

Next, the small diameter steel pile 150 is installed in the roadbed 110 to a predetermined depth (S160). Specifically, as shown in FIG. 13F, the small-diameter steel pile 150 is inclined in the inclined direction by using a hole (Hole) pre-drilled at predetermined intervals in the flat friction plate 130 and the L friction plate 140. Install by driving. Accordingly, the secondary fixing of the grid-like geotextile 120 and the flat friction plate 130 and the L-shaped friction plate 140 may be fixed.

Next, the cemented carbide mortar before pouring non-woven fabric 160 is installed (S170). Specifically, as shown in FIG. 13G, the nonwoven fabric 160 is disposed on the upper surface of the lattice type geosynthetic fiber 120 and the side surface of the L-shaped friction plate 140 to prevent leakage of the cemented carbide cement mortar 200 to be injected. Install it. In the case of the rapid curing track which improves the resistance performance of the vertical deformation and the horizontal deformation according to the embodiment of the present invention, unlike the existing rapid curing track construction, no separate formwork is required.

Next, the wide sleeper 170 for rapid curing orbit 100 is arranged and installed (S180). Specifically, as shown in FIG. 13H, the fast sleeper wide sleeper 170 is installed on the rail 190 using the rail fastening device 180. At this time, when the wide sleeper 170 is installed all over the work section at once, the rail 190 may sag downward, so it is preferable to perform the installation work after fastening based on two to four wide sleepers 170. Do.

Next, the washing gravel 210 is first laid and the wire mesh 220 is installed (S190). Specifically, as shown in FIG. 13I, the wire mesh 220 is installed while primarily installing the cleaning gravel 210 to the bottom of the wide sleeper 170. In this case, in order to prevent damage during the tamping operation, the wire mesh 220 is disposed at the center of the wide sleeper 170 and the end of the wide sleeper 170 except for the bottom position of the bottom surface of the rail 190.

Next, the washing gravel 210 is laid second (S200). Specifically, as shown in FIG. 13J, the cleaning gravel 210 is secondaryly installed to the upper side of the L-shaped friction plate 140.

Next, linear correction and orbital state stabilization are performed (S210). Specifically, as shown in FIG. 13K, the gravel track for linear correction and stabilization of the gravel track state is left for a certain period of time, for example, about 2 weeks, and the train runs slowly.

Next, the gravel 230 is installed in the shoulder shoulder, and the reinforcing bar network cover 240 is installed (S220). Specifically, as shown in FIG. 13L, the gravel shoulder 230 is installed to increase the frictional force of the plate-shaped friction plate 130 and the L-shaped friction plate 140 and to increase the lateral resistance of the track. In order to prevent the loss of the shoulder gravel 230, the reinforcing bar cover 240 is installed.

Next, the rapid hardening orbit 100 is completed by injecting cemented carbide mortar 200 (S230). Specifically, as shown in Figure 13m, filling the voids between the cemented mortar (200) through the gap between the washing gravel 210 to complete the fast curing track 100. Accordingly, it is possible to ensure the concrete compressive strength of 5MPa or more when curing for 2 hours after the cemented cement mortar 200.

As a result, according to the embodiment of the present invention, when filling the hardening mortar to replace the old gravel road track with a fast hardening track, lattice type geo-fiber, flat plate friction plate, L-type friction plate and small diameter steel piles installed on the roadbed Through this, it is possible to improve the resistance against deformation in the vertical and horizontal directions of the rapid curing track.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

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.

100: Rapid Curing Track
110: roadbed
120: geotextile
130: plate type friction plate
140: L type friction plate
150: small diameter steel pile
160: non-woven
170: broad sleeper
180: rail fastening device
190: rail
200: cemented carbide cement mortar
210: washing gravel
220: wire mesh
230: gravel shoulder gravel
240: rebar mesh cover
300: Old gravel trajectory
131: flat plate friction plate body
132: inclined insertion bundle
133: drill hole
141: L-shaped friction plate body
142: inclined insertion bundle
143: drill hole
144: first fixing ring
145: second fixing ring

Claims (19)

Lattice type geotextiles 120 installed on the top surface of the roadbed 110 where the compaction is made to control the vertical displacement of the rapid hardening track on the top surface of the roadbed 110 in which the old gravel trajectory 300 is removed;
A flat friction plate 130 inserted into the subgrade 110 for the first fixing of the grid type geotextile 120;
An L-shaped friction plate 140 installed on an upper surface of the flat friction plate 130;
A small diameter steel pile 150 installed for secondary fixing of the lattice type geotextile 120, flat plate friction plate 130 and L type friction plate 140, and increasing resistance in the vertical and horizontal directions;
A wide sleeper 170 arranged and installed on the rail 190 using the rail fastening device 180;
A wire mesh 220 installed on the cleaning gravel 210 installed up to the bottom of the wide sleeper 170 to reduce crack generation and control crack width; And
Super fast cement cement mortar 200 is injected between the pores of the cleaning gravel 210 to complete the rapid hardening track 100
Including,
The vertical strain is reinforced by the grid-type geotextile 120, and the vertical friction plate 130, L-shaped friction plate 140 and the small-diameter steel pile 150 is characterized in that the vertical deformation is reinforced Rapid hardening track with improved resistance to deformation and horizontal deformation. The method of claim 1,
The lattice type geotextile 120 is a geogrid for reinforcement of the ground that is sufficiently secured to control or suppress the vertical deformation of the rapid curing orbit, and gravel passes through the gravel 110 when the cleaning gravel 210 is installed. A rapid hardening track having improved resistance to vertical and horizontal deformation, characterized in that a grid size of 22.5 mm or less is applied to the horizontal or vertical intervals. According to claim 1, The flat plate friction plate 130,
A plate-like friction plate body 131 formed of a plate-type steel so that a friction force is formed on the upper surface of the roadbed 110 and installed on the lattice-like geotextile 120;
An inclined insert bundle 132 formed in the flat friction plate body 131 to first fix the lattice type geotextile 120 on the subgrade 110; And
Rapid hardening orbit for improving the resistance performance of the vertical deformation and horizontal deformation including a drill hole 133 perforated at a predetermined interval on the plate friction plate body 131 for the installation of the small diameter steel pile 150. The method of claim 1,
The L-shaped friction plate 140 is characterized in that the primary fixing of the grid-like geotextile 120 and strengthening the binding of the plate-shaped friction plate 130, and acts as a side form when injection of cemented carbide cement mortar (200) Rapid hardening track with improved resistance to vertical and horizontal deformation. The method of claim 4, wherein the L-shaped friction plate 140,
An L-shaped friction plate body 141 formed of steel so as to form a friction force on the upper surface of the subgrade 110 and installed on the flat friction plate 130;
An inclined insert bundle 142 formed on the L-shaped friction plate body 141 to first fix the lattice type geotextile 120 on the subgrade 110;
A hole 143 drilled at a predetermined interval on the L-shaped friction plate body 141 for installation of the small diameter steel pile 150;
A first fixing ring (144) formed at the horizontal end of the L-shaped friction plate body (141) so that the horizontal end of the L-shaped friction plate (140) can be fixed to the horizontal end of the flat friction plate (130); And
Rapid hardening track to improve the resistance performance of the vertical deformation and the horizontal deformation including a second fixing ring (145) formed at the vertical end of the L-shaped friction plate body (141). The method of claim 1,
The small diameter steel pile 150 is vertical deformation, characterized in that installed in the inclined direction by using a hole (Hole) pre-punched at a predetermined interval in the flat friction plate 130 and L-shaped friction plate 140 And rapid hardening tracks with improved resistance to horizontal deformation. The method of claim 6,
The small diameter steel pile 150 is a rapid hardening track for improving the resistance performance of the vertical deformation and horizontal deformation, characterized in that the scale is formed on the side to check the penetration length to adjust the amount of penetration in accordance with the line conditions and roadbed conditions . The method of claim 1,
Vertical deformation and horizontal further comprising a non-woven fabric 160 is installed on the upper surface of the grid-like geotextile 120 and the side of the L-shaped friction plate 140 to prevent the cemented cement mortar 200 to be injected Rapid hardening trajectory with improved deformation resistance. The method of claim 1,
The wire mesh 220 is disposed at the center of the wide sleeper 170 and the end of the wide sleeper 170 except for the bottom portion of the bottom surface of the rail 190 in order to prevent damage during tamping. And rapid hardening tracks with improved resistance to horizontal deformation. The method of claim 1,
Rapid hardening track that improved the resistance performance of the vertical deformation and horizontal deformation further comprising a reinforcing bar network cover 240 is installed to ensure the uniformity of the shoulder shoulder in which the shoulder shoulder gravel 230 is installed. The method of claim 1,
Rapid hardening track improved the resistance performance of vertical deformation and horizontal deformation, characterized in that to secure the concrete compressive strength of 5MPa or more when hardening for 2 hours after the cemented cement mortar (200). a) performing a compaction on the upper surface of the roadbed 110 in which the old gravel trajectory 300 is removed;
b) installing a lattice type geotextile 120 on the top surface of the roadbed 110 where the compaction is made so as to control the vertical displacement of the fast curing track;
c) inserting and installing the flat plate friction plate 130 into the subgrade 110 for the primary fixing of the grid type geotextile 120;
d) installing the L-shaped friction plate 140 on the upper surface of the flat friction plate (130);
e) Secondary fixation of the grid-like geotextile 120, flat plate friction plate 130 and L-shaped friction plate 140, inserting the small diameter steel pile 150 to increase the vertical and horizontal resistance resistance performance Making;
f) installing a nonwoven fabric 160 on an upper surface of the lattice type geotextile 120 and a side surface of the L-shaped friction plate 140 to prevent leakage of the cemented carbide mortar 200 to be injected;
g) arranging the wide sleepers 170 for the fast curing track 100 and installing them on the rails 190 using the rail fastening device 180;
h) installing the wire mesh 220 after installing the cleaning gravel 210 to the bottom of the wide sleeper 170 in order to reduce the occurrence of cracks and control the crack width;
i) second installation of the washing gravel 210 to the upper side of the L-shaped friction plate 140, and then performing linear correction and stabilization of track conditions;
j) laying the shoulder shoulder gravel 230 to increase friction and horizontal resistance, and install a rebar mesh cover 240 to ensure uniformity of the shoulder shoulder; And
k) completing the rapid hardening orbit 100 by injecting the cement mortar 200 into the gap between the washing gravel 210 and the superhard cement mortar 200.
The construction method of the rapid hardening orbit which improves the resistance performance of the vertical and horizontal deformation, including. The method of claim 12,
The L-shaped friction plate 140 of step d) serves as a side formwork during the primary fixing of the lattice type geotextile 120 and the strengthening of the binding of the flat plate friction plate 130 and the injection of cemented carbide cement mortar 200. A method of constructing a rapid hardening track which improves the resistance performance of the vertical deformation and the horizontal deformation, characterized in that. The method of claim 12,
Vertical deformation, characterized in that the small diameter steel pile 150 of the step e) is installed by driving in the inclined direction by using holes drilled at a predetermined interval in the flat friction plate 130 and L-shaped friction plate 140. And a method of constructing a rapid hardening track having improved resistance to horizontal deformation. The method of claim 12,
In the step g), the installation method after the fastening of two to four wide sleepers (170) as a reference, characterized in that the installation operation of the rapid hardening trajectory to improve the resistance performance of the vertical deformation and horizontal deformation. The method of claim 12,
The wire mesh 220 of step h) is disposed at the center of the wide sleeper 170 and the end of the wide sleeper 170 except for the bottom position of the bottom surface of the rail 190 in order to prevent damage during tamping. A method of constructing a rapid hardening track having improved resistance to vertical and horizontal deformation. The method of claim 12,
Specifically, in step i), the track is left for two weeks for linear correction and stabilization of the gravel orbital state, and the rapid hardening orbital track which improves the resistance performance of the vertical and horizontal deformations is characterized by running the train slowly. Construction method. The method of claim 12,
In the j) step, to install the gravel shoulder portion 230 to increase the friction between the plate-shaped friction plate 130 and L-shaped friction plate 140 and to increase the lateral resistance of the traverse, and the gravel shoulder 230 In order to prevent the loss of the) reinforcing bar cover 240 is installed in the L-shaped friction plate 140, characterized in that the installation method of the rapid hardening track improved the resistance performance of the vertical deformation and horizontal deformation. The method of claim 12,
The k) step of fast curing tracks to improve the resistance performance of the vertical deformation and horizontal deformation, characterized in that to secure the concrete compressive strength of 5MPa or more when hardening for 2 hours after the cement cement mortar (200) in the step.

Images