KR102040602B1 - Construct Method of Subway Rail Track Panel - Google Patents

Abstract

The present invention relates to a method for constructing an underground railway track panel and, more specifically, to a method for constructing a precast concrete slab track (PST) on a concrete roadway. According to one of various embodiments of the present invention, a method for constructing an underground railway track panel comprises the steps of: (a′) installing temporary tracks wider than PST panels (hereinafter referred to as panels) on a concrete roadway of a main track tunnel; (b′) carrying a dedicated truck having the panels in a connection path connected to the main track tunnel through a vertical hole with a car lift provided on the ground, wherein the dedicated truck is moved to the main track tunnel along the connection path; (c′) moving the panels loaded on the dedicated truck through a forklift, unloading the same at an exact location by using a disposition carrying lift, and disposing the same; (d′) lifting the unloaded panels with a conveyance carrying lift, conveying the same to a panel landing place along a temporary track, and then landing the same on wooden props placed on the concrete roadway; and (e′) receiving a filler in a concrete mixer-mounted trolley conveyed along the temporary track through vertical pipes installed in the vertical hole, conveying the trolley to a filler injection place, temporarily installing casts on both sides of the panels, fixing the casts to the concrete roadway, and injecting the filler into the concrete roadway, the bottom surface of the panels, and upper surfaces of injection holes formed in the centers of the panels. Thus, the method can construct high-quality PST panels having satisfactory linearity.

Description

{Construct Method of Subway Rail Track Panel}

The present invention relates to a method for constructing a subway track track, and more particularly, to a method for constructing a precast concrete slab track (PST) panel on a concrete road.

PST (prefabricated concrete track) has advantages such as improved construction speed, uniform quality, and reduction of construction and maintenance cost than on-site casting method. Developed countries have been developed since 1970s and have been widely applied. Developing.

In other words, many countries have already built railroad tracks in PST panels.

In detail, these construction methods place stubble on a concrete floor and put a panel on it.

The large cargo truck carrying the PST panel carries the PST panel as it travels through the top of the PST panel.

This is possible when it is fully cured and fixed by filling it between the concrete bed and the PST panel, but in the past, the PST panel moves because it does not fit (unfixed). There was a problem that can not be constructed.

Publication No. 10-2016-0017999 (published February 17, 2016)

The present invention has been made to solve the above-mentioned problems, the temporary track is installed on the concrete road wider than the width of the PST panel to land the panel on the stump until the filler filled between the concrete bed and the bottom of the PST panel is cured. Since the equipments applied to the present invention are transported along a temporary track and do not pass through the upper part of the PST panel, an object of the present invention is to provide a method for constructing a subway road track panel that can construct a PST panel having a good quality of linear alignment.

Subway road track panel construction method according to an embodiment of the present invention for achieving the above object comprises the steps of (a) installing a temporary track more wider than the PST panel (hereinafter referred to as a panel) on the concrete of the underground tunnel;

(b) hooking the panel to a spreader hanger with a gantry crane mounted on the ground and carrying it into a underground tunnel through a vertical hole, and loading it into a transport trolley for transporting along the temporary track;

(c) transferring the panel loaded on the transport trolley along a temporary track to a panel landing place;

(d) The panel loaded on the transport cart is pulled by the winch provided on the transport crane on which the laying crane is mounted, and transferred to the transportation crane on the laying crane, and the panels are laid one by one using the spreading crane or the belt sling of the laying crane. Landing on the dead wood; And

(e) Receiving the filling material in the concrete mixer loading cart to be transported along the temporary track through the vertical pipe installed in the vertical sphere, and transported to the filling material injection site, and then form the formwork on both sides of the panel to be fixed on the concrete drawing, Injecting the filler to the concrete bed, the bottom surface of the panel and the top of the injection hole formed in the center of the panel; To

It is configured to include.

In addition, a roller is mounted on both sides of the left and right sides in the longitudinal direction in the upper plate of the transport cart on which the transport cart and the laying crane are mounted, and the roller is placed upside down, and the panel is loaded on the bottom of the railroad rail.

In addition, the flexible hose is connected to the lower end of the vertical pipe and the carry-in hopper is installed at the upper end, it characterized in that the spiral screw is formed at predetermined intervals therein.

In addition, when the subway map is a double track, performing step (d) on the first temporary track and step (e) on the second temporary track are alternately repeated.

And (f) installing the rail using the rail used as the temporary track after the step (e) as the main track rail.

Subway road track panel construction method according to another embodiment of the present invention, (a ') installing the temporary tracks wider than the PST panel (hereinafter referred to as a panel) on the concrete road of the main ship tunnel;

(b ') carrying a dedicated truck loaded with a panel with a car lift installed on the ground into a connecting passage connected to the main tunnel through a vertical port, and moving the dedicated truck along the connecting passage to the main tunnel;

(c ') transferring the panel loaded on the dedicated truck through a forklift and placing the panel in the correct position using a batch carry lift;

(d ') lifting the disposed panel by a transport carry lift to transport the panel along a temporary track to the panel landing site and landing on the timber placed on concrete; And

(e ') Receiving the filling material in the concrete mixer loading cart to be transported along the temporary track through the vertical pipe installed in the vertical sphere and transported to the filling material injection site, and then form the formwork on both sides of the panel to fix the concrete Injecting the filler up to the upper surface of the inlet formed in the center of the concrete panel and the panel; To

It is configured to include.

And the panel is characterized in that the even through holes are tapered so that the upper portion is wider and the lower portion is narrower.

According to the above-mentioned means of solving the problem, the temporary tracks are installed on the concrete road wider than the width of the PST panel, so that the panels are landed on the stump and applied to the present invention until the filled filler is cured between the concrete roof and the PST panel floor. Since the equipment is transported along a temporary track and does not pass over the top of the PST panel, it is possible to construct a good quality PST panel that fits the linearity of the PST panel.

1 is a schematic flowchart showing a method for constructing a subway track track panel according to an embodiment of the present invention.
2 is a front view and a plan view showing the entire construction process according to an embodiment of the present invention.
3 to 6 are views showing the construction method for each step shown in FIG.
7A and 7B are a plan view and a front view showing a track panel loading and arranging process according to another embodiment of the present invention.
8A to 8B are diagrams showing a transportation method by the transportation carry lift shown in FIG.
9A and 9B are front and side views showing the transport carry lift shown in FIG.
10A and 10B are front and side views illustrating the arrangement carry lift shown in FIG. 7.

Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

It should be noted that the same elements among the drawings are denoted by the same reference numerals and symbols as much as possible even though they are shown in different drawings.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, when a part is said to "include" a certain component, this means that it may further include other components, except to exclude other components unless otherwise stated.

1 is a schematic flowchart showing a method for constructing a subway track track panel according to an embodiment of the present invention, Figure 2 is a front view and a plan view showing the entire construction process according to an embodiment of the present invention, Figures 3 to 6 Is a view showing the construction method for each step shown in FIG.

Referring to Figures 1 to 6 the present invention will be described in the order of construction process as follows.

<Panel Import Step (S10)>

In order to construct a subway road, first, through a civil construction, a tunnel 3 and a vertical sphere 1 are formed in communication with the ground in this tunnel, and a vertical pipe 2 for carrying mortar into the vertical sphere 1 is formed. ), Connect the flexible hose to the lower part and install the hopper at the upper part.

The vertical sphere (1) can be made near the station and using this vertical sphere can be installed a passenger lift.

In addition, the concrete tunnel is installed on the bottom surface of the underground tunnel 3, and the temporary tracks 31 and 32 are installed on the concrete road wider than the width of the PST panel to be described later.

In this state, as shown in FIG. 3, a spreader that suspended a PST panel (hereinafter referred to as a 'panel') 20 mounted on a large transport trailer 12 as a gantry crane 10 installed on the ground ( Spreader) It hangs and hangs in the underground tunnel 3 through the vertical hole 1, and carries it in.

Such a panel carrying operation is carried out at night in consideration of the busyness in the city center, and is loaded in the transport trolley 16 waiting under the vertical sphere (1).

Of course, the transport trolley 16 is towed and transported by the power track 14 connected to the front, at this time is transported along the temporary tracks 31 and 32 installed wider than the panel width on the concrete.

<Panel Transport Step (S11)>

As shown in FIG. 4, the equipment for transporting along the temporary tracks 31 and 32 includes a plurality of transport trolleys 16 in front of the transport trolley 18 on which the laying crane 18a is mounted at the fore end, and in front of the front tracks 31 and 32. The power tracks 14 are arranged in order.

The upper plates of all the transport trolleys 16 and 18 are equipped with rollers on both sides in the longitudinal direction at appropriate intervals, and the rails are placed upside down on the rollers, and the panel is the bottom of the railroad rails (the bottom surface in the normal state, In other words, it is placed upside down (upside down).

This is to ease the pulling and increase the contact area between the panel and the rail.

In the panel loading step (S10), the panel 20 suspended and carried by the gantry crane 10 is transferred along the temporary tracks 31 and 32 to the landing place.

<Panel landing step (S12)>

Subsequently, after the panel is transferred to the landing site as shown in FIG. 4, the panel 20 mounted on the transport trolley 16 next to the rear end is installed at the rear of the transport trolley 18 on which the laying crane 18a is mounted. It is pulled by the winch 18b and moved to the installation crane 18 for laying cranes.

Next, using the spreader of the laying crane 18a, the panels are placed one by one on the concrete sheet by the thickness of the filler material (for example, about 40 mm), and the linear wood is placed on the ground.

At this time, if the linearity does not fit in the cant section, the linearity is corrected by adjusting the outrigger in front and rear of the transport cart 18 on which the laying crane 18a is mounted.

When the panel 20 is landed by the above method while securing the panel landing space by using the power track 14, when all the panels 20 transferred to the transport cart 18 on which the laying crane 18a is mounted are exhausted. By using the winch 18b attached to the rear end of the transport cart 18 on which the laying crane 18a is mounted, the panel 20 on the front transport trolley 16 is pulled and brought to the laying crane mounting transport trolley 18. Continue with panel landing.

In this way, when the panel landing work is completed on the solid wood on the concrete road, the traction power track 14, the transport trolley 16, and the laying crane-mounted transport trolley 18 arrive under the vertical sphere 1. Wait for the next panel transport.

In this case, as shown in FIG. 2, the panel 20 is formed to have a smaller width than the temporary tracks 31 and 32 to be landed inside the temporary tracks 31 and 32.

Panel Surveying and Fixing Steps (S13)

Next, the panels 20 mounted on the stumps of concrete are measured by height and linearity using a GPS (Global Positioning System), and then fixed using a fixture such as a rail jack.

<Filling and refilling stage (S14)>

As shown in FIG. 5, the filling equipment (concrete mixer) loading truck 13 on the temporary tracks 31 and 32 is transported along the temporary tracks 31 and 32 by a power track 11 connected to the front side thereof. do.

As described above, the vertical pipe 2 is installed in the vertical sphere 1 connecting the ground and the underground tunnel 3, and the mortar carrying hopper is formed on the vertical pipe 2 above the ground.

At this time, in order to prevent the acceleration generated when the mortar falls inside the vertical pipe (2), a spiral screw is made every about 1m.

Filling material is supplied to the concrete mixer-mounted trolley 13 of the underground tunnel 3 from the ground concrete vehicle 15 through the vertical pipe 2 (S14a).

Next, formwork made of wood or steel on both sides of the panel to prevent the filler from counting on both sides of the panel.

At this time, it is preferable that the formwork is fixed by inserting the anchor bolt on the concrete structure as a lightweight steel structure.

Next, as shown in FIG. 6, the filling material arrived at the filling material injection place through the filling equipment loading device 13 (concrete mixer) to the filling site formed by the concrete pump and the upper surface of the inlet formed at the center of the panel and the panel center is sufficiently filled. Inject (S14b).

At this time, about 6m ³ is supplied at a time, and it is moved to the filling place and filled with concrete pump.

On the other hand, when constructing a subway road in a double line, as shown in Figure 2, when the panel landing work in the first temporary track 31, the filling material is injected in the second temporary track 32, alternately construction It is desirable to speed up construction while reducing construction costs.

<Rail installation step (S15)>

At this stage, the rail used as the temporary track is used as the main track rail.

The rail is rolled up on the constructed panel using an excavator, and the joint between the rail and the rail is welded on site. The overlap between the welds is ground, and the panel and rail are fastened with rail fasteners to finish the construction.

On the other hand, when the rail and rail are welded seamlessly and used as a temporary track during temporary track construction, the main track rail construction may be convenient. In this case, when the rail is lifted on a panel with an excavator and fastened with a rail fastener, the main track track Construction can be completed simply.

<Stress Removal Step (S16)>

In the rail installation step (S15), the rail is bent around and the tensile and compressive stress is accumulated.

This stress is removed by tapping inwards and outwards at intervals of about 1m with a non-metal synthetic hammer.

At this time, the weight of the hammer is 2kg and the length of the hammer bag is about 60cm.

7a and 7b are a plan view and a front view showing a track panel loading and arranging process according to another embodiment of the present invention, Figures 8a to 8b is a view showing a transport method by the transport carriage shown in Figure 7, 9A and 9B are front and side views showing the transport carry lift shown in FIG. 7, and FIGS. 10A and 10B are front and side views showing the layout carry lift shown in FIG. 7.

1 is different from the panel import step S10, the panel transport step S11, and the panel landing step S12, and the remaining steps are the same, so that the panel import step S10 and the panel transport step are as follows. Only the S11) and the panel landing step S12 will be described in detail.

<Panel Import Step (S10)>

In order to construct a subway road, first, through a civil engineering work, a connecting passage 4 is formed in the basement and a vertical sphere 1 is formed in communication with the ground in the connecting passage 4, and mortar is carried in the vertical sphere 1. Install a vertical pipe (not shown) for connecting the flexible hose to the lower end and the loading hopper is installed on the upper end.

The vertical sphere 1 can be made near a station and a vertical lift can be installed in the vertical sphere 1.

In addition, the main tunnel (5) to communicate with the connection passage 4 of the basement is formed to install a concrete icon on the bottom surface, the temporary tracks (31, 32) wider than the width of the PST panel to be described later on the concrete diagram Install it.

In addition, the PST panel ('panel 20') installed on the vertical sphere (1) is carried to the installation site where the vertical sphere (1) is formed in a large transport truck 41 is installed on the large transport truck (41) After transporting to the medium dedicated truck 42, the dedicated truck 42 on which the panel 20 is loaded using the car lift 40 is lowered to the connecting passage 4 through the vertical hole (1).

The dedicated truck 42 carrying the panel 20 is transported through the connecting passage 4 to the main tunnel 5 where the panel 20 is moved by the forklift 43 and then the panel on the concrete road. It is placed in the correct floor position by the placement carrylift 60 moving along the temporary tracks 31 and 32 installed wider than the width.

The arrangement carrylift 60 is a frame 61 forming a constant frame horizontally and vertically, as shown in Figs. 10a and 10b, and is provided on the lower side of both sides of the vertical frame along the temporary tracks (31, 32) The traveling device 63 for transporting, the hoist 62 mounted on the horizontal frame to move the panel 20 up and down and disposed at the correct position, and coupled to the lower portion of the hoist 62 and the panel 20 A lifting belt sling 64 or a spreader is provided.

The traveling device 63 is provided with a power unit, not shown, to enable the independent movement of the arrangement carry lift 60, and lift the panel to move to the correct position so that the panel 20 can be disposed at the correct position.

The panel 20 is disposed using the batch carrylift 60 as described above, but the batch carrylift 60 moves to a position where the transport carry lift 50 to be described later will be loaded (installed). During this time, the dedicated truck 42 lowers the panel 20 to the forklift 43 and accurately positions the lowered panel 20 so that the transport carry lift 50 can be directly loaded and moved.

Meanwhile, the empty dedicated truck 42 which puts down the panel 20 is transported to the lower portion of the vertical hole 1 along the connection passage 4 and then ascends through the car lift 40 to stand on the ground.

<Panel Transport Step (S11)>

The transport carry lift 50 moving along the temporary tracks 31 and 32 transfers the panel 20 along the temporary tracks 31 and 32 to the installation (landing) location by the tow truck 51 connected to the front side. .

As shown in FIGS. 9A and 9B, the transport carry lift 50 includes a frame 55 formed horizontally and vertically and inclined to form a constant frame, and provided on both lower sides of the vertical frame to provide temporary tracks 31 and 32. A traveling device 53 for conveying along the circumference, a hoist 52 installed on the horizontal frame to move and arrange the panel 20 up and down, and coupled to a lower portion of the hoist 52, And a belt sling 54 for lifting.

To this end, an even number of through-holes 21 are tapered so that the upper and lower portions of the panel 20 are tapered so that the belt sling 54 can be fitted into the panel 20. The driving device 53 is provided with a power unit. Since it is not possible to transport the carriage 50 is not possible to transport independently, the transport carry lifts are connected to each other to move through a tow truck (or dog dog car).

<Panel landing step (S12)>

Subsequently, after the panel 20 is transferred to the place of installation (landing) by the transport carry lift 50, the solid wood is placed on the concrete road (for example, about 40 mm) by the thickness of the filling material, and the linear wood is placed on the ground (to be placed). ).

In this case, as shown in FIG. 2, the panel 20 is formed to have a smaller width than the temporary tracks 31 and 32 to be landed inside the temporary tracks 31 and 32.

Although the technical spirit of the present invention has been described above with reference to the accompanying drawings, the present invention has been described by way of example and is not intended to limit the present invention.

In addition, it is obvious that any person skilled in the art may make various modifications and imitations without departing from the scope of the technical idea of the present invention.

1: vertical sphere 2: vertical tube
3: Underground Tunnel 10: Gantry Crane
11,14: Power railcar 12: Transport trailer
13: truck with concrete mixer 15: ready-mixed vehicle
16: transport cart 18: transport crane with laying crane
20: Panel 31, 32: Temporary track

Claims (7)

(a) installing a temporary track on the concrete roadway of the underground tunnel more widely than a PST panel (hereinafter referred to as panel);
(b) hooking the panel to a spreader hanger with a gantry crane mounted on the ground and carrying it into a underground tunnel through a vertical hole, and loading it into a transport trolley for transporting along the temporary track;
(c) transferring the panel loaded on the transport trolley along a temporary track to a panel landing place;
(d) The panel loaded on the transport cart is pulled by the winch provided on the transport crane on which the laying crane is mounted, and transferred to the transportation crane on the laying crane, and the panels are laid one by one using the spreading crane or the belt sling of the laying crane. Landing on the dead wood; And
(e) a concrete mixer loading truck which is installed in the vertical sphere, a flexible hose is connected to the lower end, and an import hopper is installed at the upper end, and is transported along the temporary track through a vertical pipe formed with spiral screws at predetermined intervals therein. Receiving a filler and transporting the filler to a filler injection site, and installing formwork on both sides of the panel to fix the mold on the concrete island, and injecting the filler to the concrete island, the bottom surface of the panel and the top of the injection hole formed in the center of the panel; To
Subway track track panel construction method. The method of claim 1,
The upper plate of the transport trolley on which the transport trolley and the laying crane are mounted is equipped with rollers on both sides in the longitudinal direction, and the rails are placed upside down on the rollers, and the panel is loaded on the bottom surface of the railway rail. Construction method. delete The method of claim 1,
And (d) performing the step 1d on the first temporary track and performing the step (e) on the second temporary track when the subway is a double track. The method of claim 1,
(f) using the rail used as a temporary track after the step (e) as a main track rail installation step further comprising the step of installing the rail track panel construction method. (a ') installing a temporary track on a concrete roadway of a main tunnel more widely than a PST panel (hereinafter referred to as a panel);
(b ') carrying a dedicated truck loaded with a panel with a car lift installed on the ground into a connecting passage connected to the main tunnel through a vertical port, and moving the dedicated truck along the connecting passage to the main tunnel;
(c ') transferring the panel loaded on the dedicated truck through a forklift and unloading and placing the panel in an accurate position using a batch carry lift;
(d ') lifting the unloaded panel by a transport carry lift and transporting it along the temporary track to the panel landing site and landing it on the timber placed on the concrete island; And
(e ') Receiving the filler in the concrete mixer loading cart to be transported along the temporary track through the vertical pipe installed in the vertical sphere, and transported to the filling material injection site, and then form the formwork on both sides of the panel to fix the concrete Injecting the filler up to the upper surface of the inlet formed in the center of the concrete panel and the panel; To
Subway track track panel construction method. The method of claim 6,
The method of claim 1, wherein the panel is tapered so that the even through holes are wider at the top and narrower at the bottom.

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