JP5308592B1 - Installation method of railroad platform platform fence - Google Patents

Abstract

The present invention provides a method for installing a platform fence for a railroad platform using a new slab structure that replaces a perforated PC slab.
A direction along a railroad rail is defined as a longitudinal direction, a direction perpendicular to the longitudinal direction is defined as a width direction, and a home side region and a rail side region having a height higher than the home side region are provided in the width direction. A plurality of precast slabs having a plurality of female screws formed in the region on the rail side corresponding to the shape of the edge along the rail of the platform, and the shape of the edge along the rail of the platform. Correspondingly, the step of fixing the adjustment plate to the corresponding female screw of the plurality of female screws formed on the precast slab, and the opening and closing of the home door is controlled on the fixed adjustment plate via the machine base plate A step of mounting a control device, a step of disposing a cable trough for accommodating power and signal line cables in the home side region of the precast slab; It characterized by having a step of connecting to the controller branches the contained power and signal cables to the cable trough.
[Selection] Figure 8

Description

  The present invention relates to a platform fence installation method for a railway platform, and more particularly to a platform fence installation method formed on a railway platform using a precast concrete (PC) version slab.

  In recent years, safety fences (home fences) have been installed on existing railway platforms as one of the measures to prevent falls.

  In the case of an existing embankment type platform, the installation of such a home fence is improved to a girder type platform. At that time, it is necessary to remove the embankment. In addition, in the girder type platform, a perforated PC slab intended for weight reduction is used as a design specification for a PC version (hereinafter referred to as a PC slab) forming the platform floor.

  This perforated PC slab corresponds to bending stress and shearing force considering only the equal distribution weight of passengers. However, because the load of the control device that controls the opening and closing of the home door, the horizontal force due to the wind load, and the passenger's thrust are newly added along with the installation of the platform fence, the conventional perforated PC plate structure is insufficient in strength. Become. At the same time, as will be described later, it takes a long time to install the home fence control equipment.

  FIG. 1 is a diagram for explaining the problem of the existing perforated PC slab.

  In FIG. 1, it is a figure which shows the cross section of the width direction (perpendicular | vertical direction with respect to the length direction of a track [rail]) of the existing perforated PC slab.

As a design specification, a passenger's evenly distributed load 500 kg / m ² with respect to a perforated PC slab 1 having a width W = 100 cm and a thickness t = 10 cm. The weight is reduced by providing a plurality of holes 1A in the length direction (perpendicular to the paper surface), and the strength is obtained by a plurality of reinforcing bars (PC steel wires) 2 arranged in parallel extending in the length direction.

  FIG. 2 is a diagram for explaining a case where a home fence control device is mounted on such a perforated PC slab.

  As shown in FIGS. 2A and 2A, when the home fence control device 100 is mounted, it is necessary to take a reinforcement measure using the large base plate 3. Further, in order to fix the control device 100, in the perforated PC slab 1, a through hole for the through bolt 4 and a hole (cable route) 5 through which the power and signal line cable are passed are required.

  At this time, in the existing perforated PC slab, the arrangement of the PC steel wire 2 in consideration of such drilling is not considered. Therefore, in order to drill the cable route 5, it is necessary to cut at least one PC steel wire after rebar exploration.

  Furthermore, the perforated PC slab 1 may be lifted by a horizontal force such as a wind load when the home fence is installed. For this purpose, a new structure is required for fixing the perforated PC slab 1 to a cross beam such as H steel, not shown.

  In addition, a cable rack 6 is arranged below the PC slab 1 as shown in FIGS. 2 and 2B, corresponding to the route 5 of the cable connected to the home fence control device 100. Therefore, it is necessary to secure a space for providing the cable rack 6. In the case of the embankment type platform, as shown in FIG. 3, it is necessary to remove the embankment part on the lower side of the perforated PC slab 1, which is an adverse effect of shortening the construction period.

  That is, FIG. 3 is a conceptual diagram in which the track (rail) side is shown on the left, the embankment type platform is changed to a girder type, and the home fence control device 100 is mounted.

  The stake 1 and the cross beam 8 are laid, and the PC slab 1 is attached on the cross beam 8. In such a case, when removing the embankment of the portion surrounded by the retaining wall 9 for laying the standing pile 7 and the cross beam 8, in order to secure a space where the cable rack 6 is arranged below the PC slab 1 In addition, it is necessary to remove a large amount of embankment. In FIG. 3, reference numeral 10 denotes a decorative board.

  Here, there are inventions described in Patent Documents 1 to 6 and the like as conventional examples related to installation of a platform fence formed on a railway platform using such a PC slab.

JP 2005-188201 A JP 2011-178357 A JP 2011-195009 JP 2011-196094 A JP 2011-231543 A JP 2012-158879 A

  As described above, in the installation of the platform fence using the conventional perforated PC slab shown in Fig. 1, when embedding the embankment type platform, it is necessary to remove a large amount of embankment, which is a problem that shortens the construction period. have.

  Furthermore, when the maintenance of the home fence control device 100 is necessary, it cannot be performed from the top surface of the platform, and the night work with the track closing is mainly performed, so that an intermediate inspection in an emergency becomes difficult.

  Further, it is conceivable to increase the thickness of the entire PC slab in consideration of the load of the home fence control device 100, focusing on the strength of the PC slab 1, but in this case, the weight of the PC slab 1 is increased. End up.

  Therefore, an object of the present invention is to provide a platform fence installation method for a railway platform that solves the above-described problems by using a novel slab structure that is replaced with such a perforated PC slab.

  A first side surface of a railroad platform platform fence installation method according to the present invention that achieves the above-described object is that the direction along the railroad rail is the longitudinal direction, the direction perpendicular to the longitudinal direction is the width direction, and the width side is the home side. A precast slab having a region and a rail-side region having a height higher than the home-side region, and a plurality of female screws formed on the rail-side region, corresponding to the shape of the edge along the platform rail. A plurality of steps, a step of fixing an adjustment plate to a corresponding female screw of the plurality of female screws formed on the precast slab corresponding to a shape of an end along the rail of the platform, and the fixing Mounting a control device on the adjusted plate for controlling opening and closing of the home door via the machine base plate, and the home of the precast slab. Characterized by having a step of connecting the steps of placing a cable trough for accommodating the power and signal cables to the region, to the control device branches the housed in cable trough power and signal cables.

  In a preferred embodiment of the first aspect, the precast slab is formed with a plurality of female screws in the longitudinal direction and the width direction, respectively, and in the step of fixing the adjustment plate, a curve of the platform rail is provided. The adjustment plate is fixed to the corresponding female screw of the plurality of female screws in the longitudinal direction and the width direction so as to correspond to the shape of the end side along.

  In a preferred aspect of the first aspect, a space is provided by a bolt between the adjustment plate and the machine base plate, the power and signal line cables accommodated in the cable trough are branched, and the control device is passed through the space. It is characterized by connecting to.

  Further, in a preferred embodiment of the first aspect, the machine base plate is divided into two parts, the machine base plate divided into two parts is arranged with a space therebetween, and the power and signal line cables accommodated in the cable trough are branched. It is connected to the control device through a space between the two machine base plates divided into two.

  Furthermore, the preferable aspect in the first aspect is further characterized in that tile paving is provided corresponding to the upper surface of the precast slab, and an opening serving as an inspection opening is provided in a part of the tile paving.

  According to the first aspect, it is not necessary to drill a PC slab for introducing cables, and it is not necessary to provide a cable rack under the PC slab as a work for installing a home fence on a banking platform. This eliminates the need to remove the embankment under the PC slab, and greatly shortens the construction period.

  Further, when the adjustment plate is fixed to the PC slab, an appropriate female screw corresponding to the shape of the end along the platform rail is selected from a plurality of existing female screws provided on the PC slab. It can be fixed with. This eliminates the need for on-site bolt screw hole formation.

  Furthermore, by providing an openable and closable inspection port on the tile floor, intermediate inspections in an emergency can be performed without waiting for night work with track closure.

It is a figure explaining the problem of the existing perforated PC slab. It is a figure explaining the case where the apparatus for home fences is mounted on a perforated PC slab. It is a conceptual diagram when the embankment type platform is changed to a girder type and a control device is mounted. It is a flow which shows the flow until the removal of the embankment in an embankment type platform. It is a processing flow after the shaft and the cross beam are constructed following the processing of FIG. It is a figure which shows the cross section of PC slab applied to the method of this invention. It is the perspective view which looked at one structural example of PC slab according to this invention shown by sectional structure in FIG. 6 from the upper surface side. It is a cross-sectional schematic diagram which shows the state which mounted the control apparatus in the PC slab for home fences shown to FIG. It is an upper surface model which shows the relationship between PC slab, an adjustment plate, and a machine base plate. It is a figure which shows arrangement | positioning of the internal thread formed in PC slab arranged in multiple numbers corresponding to the shape of the edge along a rail of a platform. It is a figure explaining cable drawing-in. FIG. 12 is a diagram illustrating cable lead-in to the control device in another mode different from FIG. 11.

  Embodiments of the present invention will be described below with reference to the drawings. The drawings are for explanation of the present invention, and the scope of protection of the present invention is not limited thereto.

  4 and 5 are flow charts of a method for installing a platform fence for a railway platform according to the present invention. FIG. 4 is a flow showing the flow until the removal of the embankment on the embankment platform, and FIG. 5 is a flow showing the flow of the subsequent processing. That is, FIG. 5 is a processing flow after the shafts and cross girders are constructed following the processing of FIG. 4. Therefore, the subsequent flow is common to the embankment platform and the girder platform.

  In the description of the processing flow, the characteristic portions of the present invention will be sequentially described, but the structure of the PC slab 1 used in the method of the present invention will be described first in order to facilitate the understanding of the processing flows of FIGS. I will explain in detail.

  FIG. 6 is a view showing a cross section of a PC slab applied to the method of the present invention. As a feature, it shows a cross-sectional shape in which the left side of the drawing is the side along the track and the right side is the home side. The direction perpendicular to the paper surface is the direction along the track.

  As a feature, the PC slab 1 for a home fence applied to the method of the present invention shown in FIG. 6 has a portion with a thickness T and a partial region with a different thickness t (<T). In other words, it was divided into the first part a (width w1) that can cope with the dead load of the control equipment required for installing the home fence, the horizontal force by the wind and passengers, and the torsion caused by the thrust, the crowd load, and the cable load part It has the 2nd part b (width w2).

  The first part a and the second part b have steel bars extending perpendicularly to the paper surface on the lower side. Furthermore, it has a plurality of types of reinforcing bars arranged in the width direction at predetermined intervals in the direction perpendicular to the paper surface, and reinforcing bars that cross over the reinforcing bars. Thereby, the strength of the PC slab 1 can be maintained.

  As an example, the PC slab 1 has a total width W = 100 cm, a first portion a having a thickness T = 15 cm, a width w1 = 60 cm, a second portion b having a thickness t = 10 cm and a width. w2 = 40 cm.

  FIG. 7 is a perspective view of a configuration example of the PC slab 1 according to the present invention shown in a sectional structure in FIG. 6 as viewed from the upper surface side. For the sake of space, the length in the longitudinal direction of PC slab 1 (ratio of length 3 to width 1) is shown shortened.

  The PC slab 1 has a first portion a and a second portion b having different heights in the width direction. Embedded in the first portion a are a plurality of female screws 112 to which an adjustment plate for mounting a control device 100 (see FIG. 2) for controlling opening and closing of the home door and a machine base plate are fixed.

  Further, the four corners of the PC slab 1 have notches 120 into which members fixed to a cross beam such as H steel are fitted. This is provided as a preventive measure because when the control device is loaded on the PC slab 1, a rotational force is applied to the PC slab 1 by wind, horizontal force, thrust, etc. by the passenger.

  FIG. 8 is a schematic cross-sectional view showing a state in which the control device 100 is mounted on the home fence PC slab 1 shown in FIGS. 6 and 7 applied to the method of the present invention. Similarly, the left side of the drawing is the rail side, and the right side of the drawing is the home side.

  With such a PC slab structure applied to the method of the present invention, it is possible to reinforce the mounting of the control device 100 having a weight of nearly 700 kg on the PC slab 1 with the smaller adjustment plate 110 and the machine base plate 111.

  The adjustment plate 110 is fixed by bolts 113 positioned and inserted into a plurality of female screws 112 (FIG. 7) provided on the PC slab 1. The control device 100 is mounted via a machine base plate 111 on the adjustment plate 110.

  Further, the cable trough 114 is arranged in a region b (home side region having a height lower than the height of the rail side region) b on the home side of the PC slab 1. The power and signal cable 115 wired so as to run in the cable trough 114 is branched at the position of the corresponding control device 100, and drawn into the control device 100 in the horizontal direction in FIG. The characteristics of this part will be described in detail later.

  In FIG. 8, reference numeral 117 denotes a decorative board, which has an inspection port 118 in a part of the decorative board 117. As a result, emergency intermediate inspections are possible on the platform.

  Returning to FIGS. 4 and 5, the processing flow of the home fence installation method of the present invention will be described on the premise of the configuration of the PC slab 1 used in the method of the present invention described in FIGS. 6 to 8.

  In FIG. 4, first, the platform pavement in the area where the PC slab 1 is mounted is removed, and a mouth pipe (casing) is buried for curing the mouth to be drilled to install a vertical pile. Until the temporary lining plate is covered (step S1).

  Next, the temporary lining plate is removed, and a vertical pile is placed in the drilled hole by the rotary press-fit steel pipe pile method, and covered with the temporary lining plate (step S2). In addition, since the operation | work which installs a temporary lining board is the same after the completion | finish of one process (step) operation | work until the next work, in the following description, the repeated description about installation of this temporary lining board is abbreviate | omitted.

  Next, a cutter is inserted into the tip of the home, and the tile is removed (step S3).

  The embankment part to which the cross girder part is associated is excavated, and a receiving scaffold (support work) is installed (step S4). On the excavated cross girder, a stool and a cross girder are installed to support the cradle (step S5).

  Next, the embedding of the tile part between the girders is removed, and a frame material connecting the girders is installed (step S6). Further, the embankment is removed to install the PC slab 1 for the home fence (step S7).

  Here, as a feature of the present invention, when the bank is removed, the PC slab structure shown in FIGS. 2 and 2B is used by using the PC slab structure with a stepped fence described with reference to FIGS. The removal of the embankment for providing the cable rack 6 arrange | positioned under 1 is made unnecessary.

  Next, when the PC slab 1 is laid, a retaining girder is installed and the back surface is refilled (step S8). Next, the PC slab 1 is laid on the cross beam and the end fitting bolts are fixed (step S9).

  Thereafter, the process proceeds to step S11 in FIG.

  Here, in the case of a girder type platform, since the vertical pile and the horizontal girder have been constructed, the construction work of the vertical pile and the horizontal girder in FIG. 4 is not necessary. Therefore, the processing performed in the previous processing step Step S3 is performed to insert the cutter at the tip of the home and remove the tile (Step S10). The subsequent processing is the same for the embankment platform and the girder platform.

  The center of the machine base plate 111 of the control device 100 is measured in order to install the home fence along the shape of the edge along the platform rail (step S11). Next, a cover plate is covered on the door pocket (step S12).

  Further, the adjustment plate 110 is positioned, and the insert bolt 113 is fixed to the female screw 112 of the PC slab 1 (step S13).

  FIG. 9 is a schematic top view showing the relationship between the PC slab 1, the adjustment plate 110, and the machine base plate 111. A plurality of PC slabs 1 are arranged along the shape of the edge along the platform rail. A plurality of types of PC slabs 1 are prepared so as to correspond to the shape of the edge along the rail. A plurality of female screws 112 are embedded in each of the plurality of PC slabs 1 arranged in the length direction.

  The adjustment plate 110 has an appropriate female screw 112 formed on the PC slab 1 in the length direction so that the control device 100 mounted on the upper part corresponds to the position where the platform door of the platform is to be installed. The bolt 113 is inserted and fixed at the screw position. As shown enlarged below in FIG. 8, a bolt 113 is inserted into a black circle position 121 of the adjustment plate 110 and is inserted and fixed to a corresponding female screw 112.

  Further, a machine base plate 111 is mounted on the adjustment plate 110. The control device 100 is placed on the machine base plate 111. A power and signal cable, which will be described later, is passed from the lower side to the through hole 122 of the machine base plate 111 and connected to a control circuit inside the control device 100.

  FIG. 10 is a diagram showing the arrangement of the female screw 112 formed on the PC slab 1 arranged on the platform along the vicinity of the rail curve. In comparison with FIG. 9, a plurality of female screws 112 are arranged not only in the length direction but also in the width direction. In such a case, as shown in FIGS. 10, (A), (B), and (C), the position can be adjusted by shifting the adjustment plate 110 also in the width direction. Thereby, the control apparatus 100 can be positioned in association with the curve shape of the platform.

  Returning to FIG. 3, a cable trough 114 having a height similar to the height of the rail-side region a is disposed in the region b where the home side of the PC slab 1 is low, and the inspection port 118 is installed. The height is adjusted (step S14).

  Next, the machine base plate 111 of the control device 100 is installed on the adjustment plate 110. Then, the non-shrink mortar 116 is filled so that the upper surface height is constant (step S15).

  Thereafter, the temporary lining plate is removed, and the emergency opening serving as the inspection port 118 is tiled (step S16). Next, the main body control device 100 is placed on the machine base plate 111 (step S17), the entire home is paved, and the work is completed (step S18).

  Here, the cable pull-in of the cable 115 branched from the cable trough 114 and rising in the control device 100 will be considered.

  The machine base plate 111 shown in FIG. In this case, the adjustment unit plate 110 and the machine base plate 111 are installed with an interval S as shown in FIG. At this time, the cable 300 can be drawn into the control device 100 by changing the interval S by adjusting the height with the bolt 123 in accordance with the bending radius of the cable 300 branched and drawn from the cable trough 114. It is.

  Further, as another method, as shown in FIG. 12, which similarly describes the cable lead-in to the control device 100, the machine base plate 111 is divided into base plates 111A and 111B, and a space between them is provided on the adjustment plate 110. Secure to. As a result, the cable 300 branched and drawn from the cable trough 114 can be guided into the control device 100.

  As described above, in the home fence installation method of the present invention, the cable trough can be arranged on the upper surface side by the PC slab structure having a step.

  This eliminates the need for drilling the PC slab for cable introduction, and eliminates the need to remove the embankment to install the cable rack under the PC slab 1 as a work to install the home fence on the embankment platform. Significantly shortening the construction period.

  Further, when the adjustment plate is fixed to the PC slab 1, an appropriate female screw corresponding to the shape of the end along the platform rail is selected from a plurality of existing female screws provided on the PC slab 1. And can be fixed with bolts 113. This eliminates the need for on-site bolt screw hole formation.

  In addition, by providing an inspection opening 118 (FIG. 8) that can be opened and closed on the tile floor, an intermediate inspection in an emergency can be performed without waiting for night work accompanied by track closure.

1 PC slab 100 Control device 110 Adjustment plate 111 Machine base plate 112 Female screw 113 Bolt 114 Cable trough 118 Inspection port

Claims (5)

A direction along the railroad rail is a longitudinal direction, a direction perpendicular to the longitudinal direction is a width direction, a home side region in the width direction, and a rail side region having a height higher than the home side region, Arranging a plurality of precast slabs in which female threads are formed in the region on the rail side corresponding to the shape of the end along the rail of the platform;
Fixing an adjustment plate to the corresponding female screw of the plurality of female screws formed on the precast slab corresponding to the shape of the end along the rail of the platform;
Mounting a control device on the fixed adjustment plate for controlling opening and closing of the home door via a mechanical base plate;
Disposing a cable trough that accommodates power and signal line cables in the home side region of the precast slab;
Branching the power and signal line cables housed in the cable trough and connecting to the control device;
A rail fence platform fence installation method characterized by that. In claim 1,
The precast slab is formed with a plurality of female screws in the longitudinal direction and the width direction, respectively, and corresponds to the shape of the end along the curve of the rail of the platform in the step of fixing the adjustment plate. And fixing the adjustment plate to the corresponding female screw of the plurality of female screws in the longitudinal direction and the width direction,
A rail fence platform fence installation method characterized by that. In claim 1,
A space is provided by a bolt between the adjustment plate and the machine base plate, and a power and signal line cable accommodated in the cable trough is branched and connected to the control device through the space;
A rail fence platform fence installation method characterized by that. In claim 1,
The machine base plate is divided into two parts, the machine base plate divided into two parts is arranged with a space, the power and signal line cables accommodated in the cable trough are branched, and the two machine base plates between the two parts are separated. Connect to the control device through space,
A rail fence platform fence installation method characterized by that. In claim 1,
Furthermore, tile pavement corresponding to the upper surface of the precast slab, and an opening serving as an inspection port is provided in a part of the tile pavement.
A rail fence platform fence installation method characterized by that.

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