CN112921724B - Method for installing switch area evacuation platform - Google Patents

Method for installing switch area evacuation platform Download PDF

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Publication number
CN112921724B
CN112921724B CN202110098626.0A CN202110098626A CN112921724B CN 112921724 B CN112921724 B CN 112921724B CN 202110098626 A CN202110098626 A CN 202110098626A CN 112921724 B CN112921724 B CN 112921724B
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platform
turnout
evacuation
panel
switch
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CN112921724A (en
Inventor
杨明辉
周良华
田春香
张智律
邵忠辉
应高华
刘颖
李粮余
王开云
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Huayuan Advanced Materials Co ltd
Ningbo Huayuan Rail Technology Co ltd
Sichuan Tietuo Technology Co ltd
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Huayuan Advanced Materials Co ltd
Sichuan Tietuo Technology Co ltd
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B37/00—Making, maintaining, renewing, or taking-up the ballastway or the track, not provided for in a single one of groups E01B27/00 - E01B35/00
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F1/00—Construction of station or like platforms or refuge islands or like islands in traffic areas, e.g. intersection or filling-station islands; Kerbs specially adapted for islands in traffic areas
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Business, Economics & Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

The invention provides a method for installing a turnout area evacuation platform, and belongs to the technical field of track safety. The method for installing the switch area evacuation platform comprises the following steps: step S1, determining the installation mode of a nylon sleeve according to the manufacturing form of the sleeper of the turnout; s2, paving a platform framework; s3, paving a platform panel; according to the method, the installation mode of the nylon sleeve is determined according to the manufacturing form of the sleeper of the turnout, the platform framework is installed on the nylon sleeve through the bolts, the platform panel is paved on the platform framework, the evacuation platform is installed in the turnout area, the evacuation platform spans the grooves, the signal switches, the cables and the like in the turnout area, the influence of the train operation process on the stability, the reliability and the maintenance convenience of the evacuation platform is fully considered, the interference on the signal switches, the cables and the like is effectively avoided, the flatness of evacuation channels is ensured, personnel evacuation is facilitated, and the safety and the security are higher.

Description

Method for installing switch area evacuation platform
Technical Field
The invention relates to the technical field of track safety, in particular to a method for installing a turnout area evacuation platform.
Background
When the subway operation train encounters emergency situations such as vehicle faults, power supply system faults, fire accidents, terrorist attacks and the like in a tunnel or on a viaduct, the evacuation platform is used as a special path for personnel evacuation, and personnel evacuation can be conveniently and rapidly realized, so that reasonable arrangement of the evacuation platform becomes an extremely important ring in rail traffic operation safety.
At present, the existing evacuation platforms are arranged in tunnels or on viaducts, no evacuation platform is arranged in a turnout area between the tunnels or the viaducts and stations, and as the side strand guide curve steel rail inclined crossing bed surface is arranged in the turnout area, a signal point switch and a groove are arranged on a track bed, a current equalizing cable for towing and returning the steel rail joint, a signal cable arranged on the track bed surface, a turnout sleeper height and other factors are arranged, and the factors can lead to the uneven track bed surface and seriously influence the evacuation safety of personnel in emergency.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an installation method of a turnout area evacuation platform, wherein the evacuation platform is arranged in a turnout area, firstly, whether turnout sleeper is prefabricated or installed on the existing sleeper is considered, different installation methods are selected according to different requirements, secondly, the fixed torque of a platform framework of the evacuation platform is set according to the required pretightening force, the platform framework is installed on the sleeper of the turnout area, and finally, a platform panel is paved on the platform framework, so that the platform panel can cross a groove, a signal switch machine, a cable and the like, the flatness of an evacuation channel of the turnout area is maintained through the platform panel, and the evacuation of personnel is facilitated.
The specific technical scheme is as follows:
the method for installing the switch area evacuation platform comprises the following steps:
step S1, determining the installation mode of a nylon sleeve according to the manufacturing form of the sleeper of the turnout;
when the sleeper of the turnout is prefabricated, pre-burying a nylon sleeve for fixing the evacuation platform in the sleeper manufacturing process;
when the sleeper of the turnout is the existing sleeper, drilling holes in the concrete of the turnout zone bed between the sleepers, and burying nylon sleeves through the drilling holes;
s2, paving a platform framework;
a plurality of platform frameworks are paved at intervals along the longitudinal direction of the turnout, and the bottoms of the platform frameworks are arranged on the nylon sleeve through bolts for anchoring;
s3, paving a platform panel;
the longitudinal direction along the turnout direction lays the platform panel on the platform skeleton, and the platform panel spans between two adjacent platform skeletons, and simultaneously, the platform panel spans the slot of signal point switch and the traction lever of signal point switch to the face of platform panel is less than the rail top surface of rail.
In the above installation method of the switch area evacuation platform, when the nylon sleeve is installed in step S1, the anchoring and pulling resistance of the nylon sleeve needs to be ensured
Figure DEST_PATH_IMAGE002
Is greater than pretightening force->
Figure DEST_PATH_IMAGE004
Wherein->
Figure DEST_PATH_IMAGE006
（1）
In the formula (1),
Figure DEST_PATH_IMAGE008
is a safety coefficient; />
Figure DEST_PATH_IMAGE010
The area of each platform panel; />
Figure DEST_PATH_IMAGE012
The wind load is the wind load of the tunnel piston; />
Figure DEST_PATH_IMAGE014
The number of anchor bolts per deck panel range.
According to the method for installing the turnout area evacuation platform, when the nylon sleeve is buried in the drill hole, the reinforcement-embedding glue is required to be injected into the drill hole.
In the above installation method of the switch area evacuation platform, when the platform skeleton is installed in step S2, the anchoring torque of the platform skeleton is applied
Figure DEST_PATH_IMAGE016
The following formula is satisfied:
Figure DEST_PATH_IMAGE018
（2）
in the formula (2),
Figure DEST_PATH_IMAGE020
the nominal diameter of the bolt for anchoring; />
Figure DEST_PATH_IMAGE022
Is a torque coefficient; />
Figure 546673DEST_PATH_IMAGE004
Is pretightening force.
The method for installing the switch area evacuation platform comprises the steps of
Figure 810951DEST_PATH_IMAGE022
The value range of (2) is 0.01-0.45.
In the above-mentioned installation method of the switch area evacuation platform, in step S3, it is first determined whether the platform panel is located at the groove of the signal switch machine or at the guide rail of the switch,
when the platform panel is positioned at the groove of the signal switch machine or at the guide rail of the turnout, one end of the platform panel is hinged to the platform framework, and the other end of the platform panel is connected with the platform framework through a locking structure; or a guide rail sliding structure is arranged between the side part of the platform panel and the platform framework, the platform panel can slide on the platform framework along the longitudinal direction of the turnout direction, and a locking structure is arranged between the platform panel and the platform framework;
when the platform panel is not positioned at the groove of the signal switch machine or at the guide rail of the turnout, the two ends of the platform panel are respectively fixed on the two corresponding platform frameworks.
In the above-mentioned method for installing the switch area evacuation platform, in step S3,
the platform panel is not arranged in the switching movement range of the turnout;
the working edge area of the guide rail of the turnout, a gap with the width of the wheel rim groove is reserved between the side edge of the platform panel and the steel rail, the non-working edge area of the guide rail of the turnout, the side edge of the platform panel is closely attached to the steel rail, and the height of the platform panel is higher than that of the turnout fastener; at the same time, the switch range of the switch and the side edges of the landing panel in the area outside the guide rail area of the switch do not extend to the switch fasteners.
According to the method for installing the switch area evacuation platform, the slope is arranged in the switch area and positioned at the starting point and/or the end point of the evacuation platform, and the proportion range of the slope is 1: 5-1:10.
The method for installing the turnout area evacuation platform comprises the steps that a reflection sign for indicating the evacuation direction is arranged on a platform panel, and the reflection sign is detachably arranged on the platform panel; or the reflective sign and the platform panel are of an integrated structure.
The method for installing the turnout area evacuation platform comprises the step of installing the turnout area evacuation platform, wherein the platform panel is of a concrete structure or a composite material structure.
The technical scheme has the positive effects that:
according to the method for installing the evacuation platform in the turnout area, firstly, the installation mode of the nylon sleeve is determined according to the manufacturing form of the sleeper of the turnout, then the platform framework is installed on the nylon sleeve through the bolts, and finally the platform panel is paved on the platform framework, so that the installation of the evacuation platform on the road bed surface in the turnout area is realized, the flatness of the dispersion platform in the area such as the groove, the signal switch machine, the cable and the guide rail in the turnout area is ensured, the influence of the train operation process on the stability and the reliability of the evacuation platform is fully considered, the influence on the maintenance convenience of turnout steel rails, fasteners and the signal switch machine equipment is fully considered, the interference on the signal switch machine, the cable, the guide rail and the like is effectively avoided, the evacuation safety of personnel is facilitated, and the evacuation safety is ensured.
Drawings
Fig. 1 is a flowchart of an installation method of a switch area evacuation platform of the present invention.
FIG. 2 is a block diagram of a switch area evacuation platform according to a preferred embodiment of the present invention;
FIG. 3 is a block diagram of a preferred embodiment of the present invention employing a hinge;
FIG. 4 is a block diagram of a preferred embodiment of the present invention in a hinged manner in the rail area;
FIG. 5 is a block diagram of a preferred embodiment of the present invention employing a rail glide configuration;
FIG. 6 is a block diagram of a ramp according to a preferred embodiment of the present invention.
In the accompanying drawings: 1. a platform framework; 2. a platform panel; 21. a reflective sign; 3. a signal switch machine; 31. a groove; 4. a steel rail; 5. a ramp; 6. and a guide rail of the turnout.
Detailed Description
In order to make the technical means, the creation features, the achievement of the purposes and the effects of the present invention easy to understand, the following embodiments specifically describe the technical solution provided by the present invention with reference to fig. 1 to 6, but the following disclosure is not limited to the present invention.
Fig. 1 is a flowchart of an installation method of a switch area evacuation platform of the present invention. As shown in fig. 1, the method for installing the switch area evacuation platform provided in this embodiment includes the following steps:
step S1, determining the installation mode of a nylon sleeve according to the manufacturing form of the sleeper of the turnout;
step S2, paving a platform framework 1;
and step S3, paving the platform panel 2.
Specifically, in step S1, it is first determined whether the sleeper of the switch is of a prefabricated structure or of an existing structure. When the sleeper of the turnout is of a prefabricated structure, a nylon sleeve for fixing the evacuation platform is pre-embedded in the sleeper manufacturing process, so that one-time manufacturing is realized, the efficiency is improved, and the cost is reduced; when the sleeper of the turnout is the existing sleeper, the existing structure is reformed, at the moment, holes are drilled in the concrete of the turnout zone track bed between the sleepers, and nylon sleeves are buried in the holes, so that the nylon sleeves are installed on the track bed, and conditions are provided for the arrangement of the evacuation platform on the track bed in the turnout zone.
More specifically, in the installation of the nylon sleeve in step S1, it is necessary to secure the anchoring resistance of the nylon sleeve
Figure 59530DEST_PATH_IMAGE002
Is greater than pretightening force->
Figure 48214DEST_PATH_IMAGE004
Wherein, the method comprises the steps of, wherein,
Figure 331428DEST_PATH_IMAGE006
（1）
in the formula (1),
Figure 498098DEST_PATH_IMAGE008
is a safety coefficient; />
Figure 233973DEST_PATH_IMAGE010
An area for each platform panel 2; />
Figure 26349DEST_PATH_IMAGE012
The wind load is the wind load of the tunnel piston; />
Figure 164069DEST_PATH_IMAGE014
The number of anchor bolts per deck panel 2.
At this time, only when the nylon sleeve is anchored with pulling resistance
Figure 501640DEST_PATH_IMAGE002
Is greater than pretightening force->
Figure 724811DEST_PATH_IMAGE004
During the operation of the train, the stability and the reliability of the evacuation platform can be ensured, the influence of the operation of the train on the evacuation platform is fully considered, the safety of the evacuation platform is ensured, and the evacuation of personnel is facilitated.
More specifically, when the sleeper of the turnout is the existing sleeper, since the nylon sleeve is installed in the drill hole of the concrete of the turnout zone bed in the later stage, when the nylon sleeve is buried in the drill hole, the reinforced plastic is needed to be injected into the drill hole first, so as to ensure the anchoring and pulling resistance of the nylon sleeve when the nylon sleeve is buried in the concrete of the turnout zone bed
Figure 55299DEST_PATH_IMAGE002
Can meet the use requirement and has more reasonable installation method.
Specifically, when step S2 is performed, the platform frameworks 1 need to be laid longitudinally along the direction of the switch, at this time, the plurality of platform frameworks 1 are arranged at intervals, and a supporting foundation is provided for the subsequent platform panel 2 through the platform frameworks 1, and conditions are provided for the platform panel 2 to cross the groove 31, the signal switch machine 3, the cable and the like. And, the bottom of platform skeleton 1 is installed on nylon sleeve through anchor with the bolt, and platform skeleton 1 adopts the mode of detachable connection to install on nylon sleeve promptly, easy dismounting does benefit to maintenance and the change in later stage, in addition, also guarantees the stability after the installation of platform skeleton 1.
More specifically, in the mounting of the platform frame 1 in step S2, the anchoring torque of the platform frame 1
Figure 47525DEST_PATH_IMAGE016
The following formula is satisfied:
Figure 742949DEST_PATH_IMAGE018
（2）
in the formula (2),
Figure 328782DEST_PATH_IMAGE020
the nominal diameter of the bolt for anchoring; />
Figure 72747DEST_PATH_IMAGE022
Is a torque coefficient; />
Figure 309694DEST_PATH_IMAGE004
Is pretightening force.
At this time, the fixing torque to the platform frame 1
Figure 113701DEST_PATH_IMAGE016
When formula (2) is satisfied, stability and reliability of the platform framework 1 after installation can be guaranteed, the problem of potential safety hazard of the evacuation platform caused by damage in the use process is prevented, and safety guarantee is higher.
More specifically, in equation (2), the torque coefficient
Figure 183901DEST_PATH_IMAGE022
The value of (2) is in the range of 0.01-0.45 and, in the selection of the torque coefficient +.>
Figure 731557DEST_PATH_IMAGE022
During the time, need to select rationally according to factors such as the threaded connection material of bolt, surface friction condition and screw thread manufacturing quality to the security of evacuation platform has been guaranteed.
Specifically, when step S3 is performed, the platform panel 2 needs to be laid on the platform skeleton 1 along the longitudinal direction of the switch direction, at this time, the platform panel 2 has a plurality of blocks, and the platform panel 2 spans between two adjacent platform skeletons 1, and simultaneously, the platform panel 2 spans the groove 31 of the signal switch machine 3 and the traction rod of the signal switch machine 3, the laying of the platform panel 2 realizes the laying of the interval between two adjacent platform skeletons 1, the continuity of the evacuation platform is realized, the evacuation of personnel is facilitated, and the surface of the platform panel 2 is lower than the rail top surface of the rail 4, so that the height of the platform panel 2 is slightly lower than the rail top surface of the rail 4, and the influence on the train running on the rail 4 is avoided while the evacuation function is ensured.
More specifically, when installing the platform panel in step S3, it is required to determine whether the platform panel 2 is located at the groove 31 of the signal switch machine 3 or the guide rail 6 of the switch, so as to ensure that the platform panel 2 at the place can be reasonably arranged, and facilitate subsequent maintenance and maintenance of the rail and switch fasteners of the track.
FIG. 2 is a block diagram of a switch area evacuation platform according to a preferred embodiment of the present invention; FIG. 3 is a block diagram of a preferred embodiment of the present invention employing a hinge; fig. 4 is a block diagram of a preferred embodiment of the present invention in a hinged manner in the region of the rail. As shown in fig. 2, 3 and 4, when the platform panel 2 is positioned at the groove 31 of the signal switch machine 3 or the guide rail 6 of the switch, one end of the platform panel 2 is hinged on the platform framework 1, and the other end is connected with the platform framework 1 through a locking structure, so that when the guide rail 6 at the signal switch machine 3 or the switch is maintained in the later period, the platform panel 2 can be turned over after the locking structure is unlocked, and the corresponding area of the platform panel 2 is opened, so that the maintenance and the repair are more convenient; alternatively, FIG. 5 is a block diagram of a preferred embodiment of the present invention employing a rail glide configuration. As shown in fig. 2 and 5, a guide rail sliding structure is arranged between the side part of the platform panel 2 and the platform framework 1, so that the platform panel 2 can slide on the platform framework 1 along the longitudinal direction of the turnout direction by means of the guide rail sliding structure, and a locking structure is arranged between the platform panel 2 and the platform framework 1, at this time, the guide rail sliding structure can be a structure of a guide rail and a pulley, the guide rail is longitudinally arranged along the turnout direction, the pulley is arranged on the side part or the bottom of the platform panel 2, and the pulley is arranged on the guide rail in a rolling sliding manner, so that when the signal switch 3 or the guide rail 6 at the turnout position needs to be subjected to later maintenance and repair, the corresponding area of the platform panel 2 can be opened by sliding the platform panel 2 after the locking structure is unlocked, so that the maintenance and the repair are more convenient. It is worth pointing out that whether platform panel 2 adopts the articulated mode to install on platform skeleton 1, or adopts the guide rail to slide the structure and install on platform skeleton 1, can realize the temporary fixation of platform panel 2 on platform skeleton 1 through locking structure, avoid tunnel or train to advance the high-speed air current that the in-process produced and lift platform panel 2 and cause dangerous problem, the security is higher.
When the platform panel 2 is not positioned at the groove 31 of the signal switch machine 3 or the guide rail 6 of the turnout, two ends of the platform panel 2 are respectively fixed on the two corresponding platform frameworks 1, so that the platform panel 2 can be directly and stably fixed on the corresponding platform frameworks 1 when the platform panel 1 is positioned in an area where maintenance and repair of the signal switch machine 3 or the guide rail and turnout fasteners are not needed, and the stability and reliability of the evacuation platform are further ensured.
More specifically, when step S3 is performed, if the current area is in the switch activity range of the switch, the platform panel 2 is not arranged in the switch activity range of the switch, so that the platform panel 2 is prevented from interfering with the movement of the guide rail in the switch activity range of the switch, the normal and reliable performance of the switch activity is ensured, the running safety of the train is ensured, and the structural design is more reasonable. If the current area is the guide rail 6 area of switch, then this region sets up platform panel 2, and convenience personnel are evacuated, and at this moment, when being in the working side region one side of the guide rail 6 of switch, the clearance that has reserved the wheel rim groove width between the side of platform panel 2 and rail 4 has avoided evacuation platform's arrangement and has influenced the operation of train on rail 4, and when being in the non-working side region one side of the guide rail 6 of switch, the side of platform panel 2 closely adheres with rail 4, eliminates the clearance, improves the security. And the height of the platform panel 2 is higher than that of the turnout fasteners, so that the turnout fasteners are conveniently installed, meanwhile, the extrusion of the evacuation platform to the turnout fasteners is avoided, and the installation method is more reasonable. In addition, the side edges of the deck panels 2 in the areas outside the switch range of movement and the track area of the switch do not extend to the switch fasteners, providing conditions for subsequent maintenance and repair of the switch fasteners.
FIG. 6 is a block diagram of a ramp according to a preferred embodiment of the present invention. As shown in fig. 2 and 6, a slope 5 is arranged at the starting point and/or the end point of the evacuation platform formed by the platform framework 1 and the platform panel 2, so that people can conveniently go up and down on the evacuation platform, smooth transition is realized, and the evacuation safety of people is ensured. At this time, the ratio range of the slope 5 is 1: 5-1:10, the length of the slope 5 is longer, the gradient is smaller, the walking of people is facilitated, and the safety of people evacuation is further ensured. It should be noted that the slope 5 can be realized by extending the platform panel 2, and has simple structure and convenient implementation.
More specifically, after the platform panel 2 is installed on the platform framework 1, the reflective sign 21 for indicating the evacuation direction is installed on the platform panel 2, at this time, the installation of the platform panel 2 and the platform framework 1 cannot be affected by the installation of the reflective sign 21, and meanwhile, the safety indication is provided for personnel evacuation through the installed reflective sign 21, so that the structural design is more reasonable. It should be noted that, the reflective sign 21 may be a detachable structure mounted on the platform panel 2, or may be an integral structure of the reflective sign 21 and the platform panel 2, which may be reasonably selected according to practical requirements.
More specifically, the platform panel 2 of the evacuation platform is of a concrete structure or a composite material structure, so that the evacuation platform can be manufactured by selecting a proper material according to actual conditions, and reasonable allocation of indexes such as economy, service life, portability and the like is realized under the condition of meeting personnel evacuation.
The method for installing the switch area evacuation platform provided by the embodiment comprises the following steps: step S1, determining the installation mode of a nylon sleeve according to the manufacturing form of the sleeper of the turnout; step S2, paving a platform framework 1; step S3, laying the platform panel 2. Firstly, according to the manufacturing form of the sleeper of the turnout, the installation mode of the nylon sleeve is determined, then the platform framework 1 is installed on the nylon sleeve through bolts, finally the platform panel 2 is paved on the platform framework 1, the evacuation platform is installed in the turnout area, the evacuation platform spans the groove 31, the signal switch machine 3, the cable and the like in the turnout area, the influence of the train operation process on the stability and the reliability of the evacuation platform and the maintenance and repair convenience of the guide rail 6, the turnout fastener, the signal switch machine 3 and the like of the turnout is fully considered, the interference on the signal switch machine 3, the cable and the like is effectively avoided, the flatness of the evacuation channel is ensured, the evacuation of personnel is facilitated, and the safety is higher.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the embodiments and scope of the present invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included in the scope of the present invention.

Claims (6)

1. The method for installing the switch area evacuation platform is characterized by comprising the following steps of:
step S1, determining the installation mode of a nylon sleeve according to the manufacturing form of the sleeper of the turnout;
when the sleeper of the turnout is prefabricated, pre-burying a nylon sleeve for fixing an evacuation platform in the sleeper manufacturing process;
when the sleeper of the turnout is an existing sleeper, drilling holes in the concrete of a turnout zone bed between the sleepers, and burying the nylon sleeve through the drilling holes;
s2, paving a platform framework;
a plurality of platform frameworks are paved at intervals along the longitudinal direction of the turnout direction, and the bottoms of the platform frameworks are installed on the nylon sleeve through bolts for anchoring;
s3, paving a platform panel;
the platform panel is paved on the platform frameworks along the longitudinal direction of the turnout direction, and spans between two adjacent platform frameworks, meanwhile, the platform panel spans the groove of the signal switch machine and the traction rod of the signal switch machine, and the plate surface of the platform panel is lower than the rail top surface of the steel rail;
when the nylon sleeve is installed in the step S1, the anchoring anti-pulling force of the nylon sleeve needs to be ensured
Figure QLYQS_1
Is greater than pretightening force->
Figure QLYQS_2
Wherein, the method comprises the steps of, wherein,
Figure QLYQS_3
（1）
in the formula (1),
Figure QLYQS_4
is a safety coefficient; />
Figure QLYQS_5
An area for each of the deck panels; />
Figure QLYQS_6
The wind load is the wind load of the tunnel piston; />
Figure QLYQS_7
The number of bolts used for anchoring each platform panel range;
when the platform framework is installed in the step S2, the anchoring torque of the platform framework
Figure QLYQS_8
The following formula is satisfied:
Figure QLYQS_9
（2）
in the formula (2),
Figure QLYQS_10
a nominal diameter of the bolt for anchoring; />
Figure QLYQS_11
Is a torque coefficient; />
Figure QLYQS_12
Is pretightening force;
in step S3, it is first determined whether the landing panel is at a groove of the signal switch machine or at a rail of a switch,
when the platform panel is positioned at the groove of the signal switch machine or the guide rail of the turnout, one end of the platform panel is hinged to the platform framework, and the other end of the platform panel is connected with the platform framework through a locking structure; or a guide rail sliding structure is arranged between the side part of the platform panel and the platform framework, the platform panel can slide on the platform framework along the longitudinal direction of the turnout direction, and a locking structure is arranged between the platform panel and the platform framework;
when the platform panel is not positioned at the groove of the signal switch machine or at the guide rail of the turnout, two ends of the platform panel are respectively fixed on the two corresponding platform frameworks;
in the step S3 of the process,
the platform panel is not arranged in the switching movement range of the turnout;
a gap with the width of a wheel rim groove is reserved between the side edge of the platform panel and a steel rail in the working edge area of the guide rail of the turnout, the side edge of the platform panel is closely attached to the steel rail in the non-working edge area of the guide rail of the turnout, and the height of the platform panel is higher than that of the turnout fastener; at the same time, the side edges of the landing panels in the area outside the switch range of the switch and the guide rail area of the switch do not extend to the switch fasteners.
2. The method of installing an evacuation platform in a switch area according to claim 1, wherein when the nylon sleeve is embedded in the borehole, a bar planting glue is injected into the borehole.
3. The method of installing a switch yard evacuation platform of claim 1, wherein the torque coefficient
Figure QLYQS_13
The value range of (2) is 0.01-0.45.
4. The method for installing an evacuation platform in a switch area according to claim 1, wherein a slope is arranged in the switch area and at a start point and/or an end point of the evacuation platform, and the proportion range of the slope is 1: 5-1:10.
5. The method for installing an evacuation platform in a turnout area according to claim 1, wherein a light reflecting sign indicating an evacuation direction is installed on the platform panel, and the light reflecting sign is detachably installed on the platform panel; or the reflective sign and the platform panel are of an integrated structure.
6. The method of installing a switch area evacuation platform of claim 1, wherein the platform deck is a concrete structure or a composite structure.
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CN103938538B (en) * 2014-05-15 2016-03-23 中铁二院昆明勘察设计研究院有限责任公司 Railroad bridge evacuation platform
CN204978644U (en) * 2015-09-11 2016-01-20 宝应县瑞材电工材料有限公司 Combined material evacuates platform device
CN106089294B (en) * 2016-08-22 2018-04-24 洛阳双瑞橡塑科技有限公司 Integral composite material evacuation platform
CN107435291A (en) * 2017-08-18 2017-12-05 中车南京浦镇车辆有限公司 A kind of cross-saddle single-track traffic Emergency Access
CN209039876U (en) * 2018-06-27 2019-06-28 广州地铁设计研究院股份有限公司 A kind of frame-type sleeper railway roadbed detrainment device
CN209586434U (en) * 2019-02-21 2019-11-05 中铁八局集团电务工程有限公司 A kind of cover board segmented evacuation platform
CN212052391U (en) * 2020-03-17 2020-12-01 中铁八局集团电务工程有限公司 Install multistage evacuation platform in subway railway roadbed slot

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