CN104032631B - A kind of railway ballastless track that there is problem of frost heave safeguards processing method - Google Patents
A kind of railway ballastless track that there is problem of frost heave safeguards processing method Download PDFInfo
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- CN104032631B CN104032631B CN201410309370.3A CN201410309370A CN104032631B CN 104032631 B CN104032631 B CN 104032631B CN 201410309370 A CN201410309370 A CN 201410309370A CN 104032631 B CN104032631 B CN 104032631B
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Abstract
The present invention provides a kind of railway ballastless track that there is problem of frost heave to safeguard, and processing method, described method include: obtain physical dimension and the line position parameter of described railway ballastless track；Non-fragment orbit is divided into frost heave boss and the non-boss of frost heave by physical dimension and line position parameter according to described non-fragment orbit, frost heave boss is that non-fragment orbit produces protruding position in frost heave season, and the non-boss of described frost heave is that non-fragment orbit does not produce the position of projection season in frost heave.Described method is utilized to raise frost heave non-boss track elevation before roadbed frost damage season or reduce frost heave boss track elevation, frost heave boss track elevation is reduced in roadbed frost damage preferably part in season, exactly the elevation of track can be adjusted, avoid because roadbed and concrete for bridge use frost heave cause track inhomogeneous deformation and physical dimension parameter to exceed setting, improve the ride comfort of track, make the comfortableness of train driving, stability and safety be guaranteed.
Description
Technical field
The present invention relates to railroad track construction and maintenance technology field, particularly relate to a kind of railway that there is problem of frost heave without
Tiny fragments of stone, coal, etc. railway maintenance processing method.
Background technology
Roadbed and concrete for bridge use problem of frost heave have a universality in seasonal frozen soil region, the whole world, uneven frost heave and melting
Sinking and affect railway, the especially riding quality of high-speed railway, if serious differential frost heave or thaw collapse can not get processing in time
Track generation moderate finite deformation will be caused, jeopardize railway operation safety.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of railway ballastless track maintenance process side that there is problem of frost heave
Method, it is to avoid non-fragment orbit produces bigger inhomogeneous deformation because of frost heave, improves the ride comfort of track, makes the comfortable of train driving
Property, stability and safety are guaranteed.
For solving above-mentioned technical problem, embodiments of the invention provide a kind of railway ballastless track dimension that there is problem of frost heave
Protect processing method, as long as within the specific limits and position is relative solid for the depth displacement of frost heave boss boss non-with frost heave
Fixed, the non-fragment orbit inhomogeneous deformation using this method one-stop operation can forever solve roadbed and the initiation of concrete for bridge use frost heave is asked
Topic, described method includes:
Obtain described non-fragment orbit then and Rail inspection parameter over the years and line position parameter；
According to described Rail inspection and line position parameter, non-fragment orbit is divided into frost heave boss and frost heave non-convex
Playing position, frost heave boss is that non-fragment orbit produces protruding position in frost heave season, and the non-boss of described frost heave is nothing
Tiny fragments of stone, coal, etc. track does not produce the position of projection season in frost heave.
Before frost heave season, raise frost heave non-boss track elevation or reduce frost heave boss track elevation,
Frost heave reduces frost heave boss track elevation season.
Preferably, described before frost heave season, raise frost heave non-boss track elevation or reduce frost heave boss
Track elevation, reduces frost heave boss track elevation in frost heave season, including:
Acquisition roadbed and concrete for bridge use frost heave cause the first depth displacement and second depth displacement of track, described first depth displacement
For frost heave track in season elevation and the track elevation difference preset, described second depth displacement is frost heave boss and frost heave non-convex
Play the track depth displacement at position；
Before frost heave season, frost heave non-boss track is raised high according to described first depth displacement and the second depth displacement
Journey or reduction frost heave boss track elevation, reduce frost heave boss track elevation in frost heave season.
Preferably, described before frost heave season, the non-projection of frost heave is raised according to described first depth displacement and the second depth displacement
Position track elevation or reduction frost heave boss track elevation, reduce frost heave boss track elevation bag in frost heave season
Include:
Obtain frost heave boss and the depth displacement of the non-boss of frost heave and backing plate quantity；
According to described frost heave boss and the depth displacement of the non-boss of frost heave, prescribed threshold, backing plate height and use
Condition obtains backing plate quantity N, and wherein N is the integer more than or equal to 0；
Frost heave increased below N block backing plate or frost heave boss rail before season below frost heave non-boss rail
Reduce N block backing plate；.
N block backing plate is decreased below at frost heave boss rail season in frost heave.
Preferably, described method also includes:
Described Rail inspection parameter is utilized to reduce boss track elevation in frost heave part in season, it is ensured that track is several
What dimensional parameters either in frost heave season still in thaw collapse season all the time in " specification " allowed band.
Preferably, described method also includes:
Described Rail inspection parameter and line position parameter is utilized to raise non-boss track elevation season in frost heave.
When a range of (such as corresponding 120 meters of speed 350km/h, corresponding 70 meters of speed 250km/h) frost heave rail in season
When road elevation exceedes prescribed threshold with the track depth displacement value difference preset, determine frost heave boss and the non-boss of frost heave；
A range of for non-fragment orbit frost heave track in season elevation is exceeded defined threshold and difference with the track depth displacement value difference preset
Value bigger position be defined as frost heave boss；
A range of for non-fragment orbit frost heave historical orbit in season elevation is not surpassed with the track depth displacement value difference preset
Cross defined threshold or difference difference exceedes threshold values but the less position of difference is defined as the non-boss of frost heave；Preferably, institute is utilized
State historical orbit physical dimension and line position parameter and before frost heave season, reduce the track elevation of frost heave boss or rising is frozen
The track elevation of swollen non-boss, including:
Utilize the frost heave change elevation of described historical orbit physical dimension and line position parameter acquiring frost heave boss；
Before frost heave season, reduce the track elevation of frost heave boss according to described frost heave change elevation or rising is frozen
The track elevation of the non-boss of frost heave of swollen boss both sides.
Preferably, according to described frost heave change elevation reduced before frost heave season frost heave boss track elevation or
Raise the track elevation of the non-boss of frost heave of frost heave boss both sides, it is ensured that track geometry chi before frost heave and after frost heave
Very little do not transfinite, including:
Obtain frost heave boss and frost heave non-boss depth displacement difference and backing plate quantity；
According to frost heave boss and frost heave non-boss depth displacement difference, prescribed threshold, plate thickness specification and make
Determining backing plate quantity N by condition, wherein N is the integer more than or equal to 0；
Decrease below N block backing plate at frost heave boss before frost heave season or below the non-boss of frost heave, increase N
Block backing plate.
Preferably, described method also includes:
Obtain current Rail inspection in frost heave season of described non-fragment orbit and line position parameter；
According to described current orbit physical dimension and line position parameter, non-fragment orbit is divided into frost heave boss and frost heave
Non-boss, described frost heave boss is that non-fragment orbit produces protruding position, the non-projection of described frost heave in frost heave season
Position is that non-fragment orbit does not produce the position of projection season in frost heave；
Described current Rail inspection and line position parameter is utilized to reduce the track of frost heave boss season in frost heave
Elevation or the track elevation of the rising non-boss of frost heave.
Preferably, according to described Rail inspection parameter, non-fragment orbit is divided into frost heave boss and frost heave non-convex
Play position, including:
The track elevation in non-fragment orbit frost heave season is compared with the track elevation preset, is formed and compare difference, i.e.
First depth displacement.
When a range of (such as corresponding 120 meters of speed 350km/h, corresponding 70 meters of speed 250km/h) poor value difference
When exceeding prescribed threshold, determine frost heave boss and the non-boss of frost heave；By a range of for non-fragment orbit frost heave season
Joint track elevation and the track depth displacement value difference preset exceed defined threshold and difference bigger to be defined as frost heave protruding at position
Position；
By a range of for non-fragment orbit frost heave track in season elevation with the track depth displacement value difference preset less than rule
Determine threshold value or difference difference exceedes threshold values but the less position of difference is defined as the non-boss of frost heave；
Preferably, described Rail inspection and line position parameter is utilized to reduce frost heave boss in frost heave part in season
Track elevation or part raise the track elevation of the non-boss of frost heave, it is ensured that frost heave and thaw collapse Rail inspection in season are the most not
Transfinite, including:
Obtain frost heave boss and frost heave non-boss depth displacement difference (the second depth displacement) and backing plate quantity；
According to frost heave boss and frost heave non-boss depth displacement difference, prescribed threshold, plate thickness and use bar
Part determines backing plate quantity N, and wherein N is the integer more than or equal to 0；
Frost heave decreases below N block backing plate at frost heave boss or increases N block pad below the non-boss of frost heave season
Plate.
In the present embodiment, by utilize described orbit parameter raised before frost heave season non-frost heave boss elevation or
Reduce frost heave boss elevation；Frost heave boss track elevation is reduced in frost heave preferably part in season；Can be the most right
The elevation of track is adjusted, and reduces the inhomogeneous deformation that track causes because of frost heave, improves the stationarity of track, make train row
Comfortableness, stability and the safety sailed are guaranteed.
Accompanying drawing explanation
Fig. 1 is that the railway ballastless track of the existence problem of frost heave of the embodiment of the present invention safeguards process flow figure；
Fig. 2 is that the railway ballastless track of the existence problem of frost heave of the embodiment of the present invention safeguards processing method frost heave boss
Protruding portion structure schematic diagram non-with frost heave；
Fig. 3 is that the railway ballastless track of the existence problem of frost heave of the embodiment of the present invention safeguards that the orbital position of processing method shows
It is intended to；
Fig. 4-a and 4-b is the rail that the railway ballastless track of the existence problem of frost heave of the embodiment of the present invention safeguards processing method
Road position view；
Fig. 5 is that the railway ballastless track of the existence problem of frost heave of the embodiment of the present invention safeguards that the orbital position of processing method shows
It is intended to；
Fig. 6 is that the railway ballastless track of the existence problem of frost heave of the embodiment of the present invention safeguards that the orbital position of processing method shows
It is intended to.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
As it is shown in figure 1, a kind of railway ballastless track that there is problem of frost heave of embodiments of the invention safeguards processing method, only
Within the specific limits and position is relatively fixed to want the depth displacement of frost heave boss and the non-boss of frost heave, uses this method one
Subjob can forever solve roadbed and the non-fragment orbit inhomogeneous deformation problem of concrete for bridge use frost heave initiation, described method bag
Include:
Step 101: obtain described non-fragment orbit then and Rail inspection parameter over the years and line position parameter.
Wherein, Rail inspection parameter over the years and parameter track line position, line position parameter can include non-fragment orbit then
And roadbed frost damage data, comprehensive detection train over the years dynamically detects data, static measurement data (linear change, track geometry
Sized data), rainfall and temperature condition, rail height, level, distortion, rail to etc. in track irregularity parameter at least one
Kind, Rail inspection parameter over the years and line position parameter can obtain by measuring in advance or transferring, and track over the years is several
What dimensional parameters and line position parameter can be recent years orbit parameter meansigma methods or maximum.Rail inspection over the years
Parameter and line position parameter can also include: the region of frost heave boss and the non-boss of frost heave divides data, frost heave projection
At least one in the orbital datas such as position frost heave change altitude data, gauge, superelevation, center line, elevation.Utilize track geometry chi
Very little parameter and line position parameter can obtain roadbed and concrete for bridge use frost heave causes the first depth displacement and second depth displacement of track, institute
Stating the first depth displacement is frost heave track in season elevation and the track elevation difference preset, and described second depth displacement is frost heave lobe
Position and the track depth displacement of the non-boss of frost heave；
Step 102: according to described Rail inspection and line position parameter non-fragment orbit is divided into frost heave boss and
The non-boss of frost heave, frost heave boss is that non-fragment orbit produces protruding position, the non-projection of described frost heave in frost heave season
Position is that non-fragment orbit does not produce the position of projection season in frost heave.
Wherein, obtain roadbed and concrete for bridge use frost heave and cause the first depth displacement and second depth displacement of track, described first
Depth displacement is frost heave track in season elevation and the track elevation difference preset, and described second depth displacement is frost heave boss and freezes
The track depth displacement of swollen non-boss；Before frost heave season, frost heave is raised according to described first depth displacement and the second depth displacement
Non-boss track elevation or reduction frost heave boss track elevation, reduce frost heave boss track height in frost heave season
Journey.
Can be according to described Rail inspection parameter and line position parameter acquiring non-fragment orbit frost heave track in season elevation；Will
Non-fragment orbit frost heave track in season elevation compares with the track elevation preset, and forms the first depth displacement；By frost heave lobe
Position and frost heave non-boss the first depth displacement compare formation the second depth displacement.
When a range of (such as corresponding 120 meters of speed 350km/h, corresponding 70 meters of speed 250km/h) the second depth displacement
When exceeding prescribed threshold, determine frost heave boss and the non-boss of frost heave；By a range of for non-fragment orbit frost heave season
Joint track elevation and the track depth displacement value difference preset exceed defined threshold and difference bigger to be defined as frost heave protruding at position
Position.
By a range of for non-fragment orbit frost heave track in season elevation with the track depth displacement value difference preset less than rule
Determine threshold value or difference difference exceedes threshold values but the less position of difference is defined as the non-boss of frost heave.
Step 103: raised frost heave non-boss track elevation before frost heave season or reduce frost heave boss rail
Road elevation, reduces frost heave boss track elevation in frost heave season.
Wherein it is possible to utilize the frost heave of described Rail inspection parameter and line position parameter acquiring frost heave boss to change
Elevation, reduced the track elevation of frost heave boss before frost heave season according to described frost heave change elevation or to raise frost heave convex
Playing the track elevation of the non-boss of frost heave of both sides, position, the non-boss of frost heave rises eminence both sides according to not less than 1:3000
Ratio is carried out along slope operation, it is ensured that before and after frost heave, Rail inspection does not transfinites.
Concrete, obtain frost heave boss and the depth displacement of the non-boss of frost heave and backing plate quantity；Freeze according to described
Swollen boss and the depth displacement of the non-boss of frost heave, prescribed threshold, plate thickness and use condition obtain backing plate quantity N,
Wherein N is the integer more than or equal to 0；Frost heave increased N block backing plate or frost heave before season below frost heave non-boss rail
Boss rail decreases below N block backing plate.
Preferably, according to described frost heave boss and the depth displacement of the non-boss of frost heave, relevant regulations threshold values, backing plate
Thickness and the condition of use obtain backing plate quantity N.
As long as the depth displacement of frost heave boss and the non-boss of frost heave is within the specific limits and position is relatively fixed, make
Roadbed and the non-fragment orbit inhomogeneous deformation of concrete for bridge use frost heave initiation can be forever solved with the method one-stop operation of the present invention
Problem, raised frost heave non-boss track elevation before frost heave season in advance or to reduce frost heave boss track in advance high
Journey, it is ensured that physical dimension does not transfinites the whole year, and steadily tide over frost heave and thaw collapse season；The most de novo frost heave is transfinited place
Institute, the method taking to reduce frost heave boss track elevation when frost heave season, it is ensured that at frost heave and thaw collapse geometry in season
Size does not transfinites, and in described frost heave boss correspondence certain limit, roadbed and concrete for bridge use frost heave cause rail surface to raise relatively
Big region, in described frost heave non-boss correspondence certain limit, roadbed and concrete for bridge use frost heave cause rail surface rising less
Region.
Preferably, described method also includes:
Described Rail inspection parameter is utilized to reduce boss track elevation in frost heave part in season, it is ensured that track is several
What dimensional parameters either in frost heave season still in thaw collapse season all the time in " specification " allowed band.
Described Rail inspection parameter and line position parameter is utilized to raise non-boss track elevation season in frost heave.
The railway ballastless track seeing the existence problem of frost heave that Fig. 2 is the embodiment of the present invention safeguards that processing method frost heave is protruding
Position and the non-protruding portion structure schematic diagram of frost heave, in fig. 2, including track elevation (2) after predetermined trajectory elevation (1), frost heave,
Frost heave boss (3), the non-boss of frost heave (4).
Rail inspection parameter and the line position parameter in frost heave season of described non-fragment orbit can be obtained；
According to described Rail inspection parameter and line position parameter, non-fragment orbit is divided into frost heave boss and frost heave
Non-boss, described frost heave boss is that non-fragment orbit produces protruding position, the non-projection of described frost heave in frost heave season
Position is that non-fragment orbit does not produce the position of projection season in frost heave；
Rail inspection and line position parameter described in utilization reduce the track elevation of frost heave boss season in frost heave
Or raise the track elevation of the non-boss of frost heave.
Preferably, described according to described Rail inspection parameter, non-fragment orbit is divided into frost heave boss and frost heave
Non-boss, including:
The track elevation in non-fragment orbit frost heave season is compared with the track elevation preset, is formed and compare difference.
When a range of (such as corresponding 120 meters of speed 350km/h, corresponding 70 meters of speed 250km/h) frost heave rail in season
When road elevation exceedes prescribed threshold with the track depth displacement value difference preset, determine frost heave boss and the non-boss of frost heave；
A range of for non-fragment orbit frost heave track in season elevation is exceeded defined threshold and difference with the track depth displacement value difference preset
Value bigger position be defined as frost heave boss；
By a range of for non-fragment orbit frost heave track in season elevation with the track depth displacement value difference preset less than rule
Determine threshold value or difference difference exceedes threshold values but the less position of difference is defined as the non-boss of frost heave；
Preferably, described utilize described Rail inspection and line position parameter frost heave season part reduce frost heave lobe
The track elevation of position or part raise the track elevation of the non-boss of frost heave, it is ensured that frost heave and thaw collapse Rail inspection in season
Do not transfinite, including:
Obtain frost heave boss and frost heave non-boss depth displacement difference and backing plate quantity；
According to frost heave boss and frost heave non-boss depth displacement difference, prescribed threshold, plate thickness and use bar
Part determines backing plate quantity N, and wherein N is the integer more than or equal to 0；
Frost heave decreases below N block backing plate at frost heave boss or increases N block pad below the non-boss of frost heave season
Plate.
Historical orbit parameters and the current orbit parameter of the embodiment of the present invention are obtained by following equipment, described equipment bag
Include:
Comprehensive detection train: equipped with the capital equipment of the EMUs of rail detection system, always track detecting.For adapting to
Line for Passenger Transportation and the development of high-speed railway, need the infrastructure such as track, contact net, communication, signal are carried out comprehensive detection, will
The specialty detection equipment such as track, contact net, communication, signal is installed on same car, is exclusively used in the comprehensive detection of infrastructure.This
The EMUs of sample are referred to as comprehensive detection train.
Electronic level: set up horizontal line of sight and measure the instrument of the ground point-to-point transmission discrepancy in elevation, be to be with automatic compensated level
Basis, adds spectroscope and reader in telescope light path, and uses bar code scaleplate and image procossing electronic system two structure
The high-tech product of the ray machine electrical measurement integration become.
Track geometry status measuring instrument: be a kind of portable tool detecting static track irregularity, can detect height, water
Flat, distortion, rail to etc. track irregularity parameter, the absolute fix that simultaneously can realize plan-position and elevation is measured, it is ensured that track
The high ride of circuit and the safety of train are with comfortable.
Rail checking instrument: be a kind of Rail inspection somascope based on optical fibre gyro precision angle trajectory measurement principle
Device.There is online data analysis and function that waveform shows in real time, it is achieved gauge, superelevation, rail to the track geometry chis such as height
Very little detection.
Track accurate measurement net (CPIII): one of three class control net foundation pile control net, predominantly lays non-fragment orbit and operation dimension
Offer is provided and controls benchmark.Along the three dimensional control network of route arrangement, rise and close in basic plane Controling network (CPI) or Control networks for lines
(CPII), general online lower engineering construction complete after testing, lay for non-fragment orbit and the benchmark of operation maintenance.By circuit control
Net (CPII) or (CPI) draw, and are finally closed into CPII or CPI point.Away from wire center at 3～4 meters.CPIII control point
General pressing is laid for 60m pair of right and left, and not should be greater than 80m, and site setting elevation is not less than orbital plane 0.3m, and is arranged on steady
Solid, reliable, survivable and be easy to the place measured, and antifreeze, anti-settling and anti-movement, control point mark is clear, complete,
It is easy to accurately identify and use.
High-speed railway disaster prevention safety monitoring system: be to ensure that high-speed railway special line safe operation important infrastructure it
One, it is framework safety information acquisition on telecommunication transmission system, monitoring system, provides data for train operation and management and depend on
According to.Disaster prevention safety monitoring system includes wind speed and direction monitoring, rainfall monitoring, snow depth monitoring, earthquake monitoring and foreign body intrusion monitoring
System.
Roadbed frost damage automatic monitoring system: by portions such as instruction control unit, data acquisition module, wireless communication module, power supplys
It is grouped into.It is with microprocessor as core, by analog-and digital-input, output signal and on-the-spot instrument and control equipment phase
Even, each technological parameter required for collection, such as pressure, displacement etc., utilize programming technique to realize controlling on the spot, simultaneously relevant number
According to arranging, utilize different host-host protocols to pass to central station by various communication interfaces, roadbed is carried out system comprehensive
Monitoring, provides basic data for roadbed frost damage deformation analysis, provides foundation for high-speed railway maintenance.
Can also include that track geometry status measuring instrument detects, its using method is:
1. track geometry status measuring instrument self-inspection
Being required for carrying out a self-inspection before using track geometry status measuring instrument, operation is very simple, only need to be by track every time
Geometry state measurement instrument same position in orbit carries out rotation interchangeable, for detecting instrument track geometry status measuring instrument originally
Whether the precision of body reaches requirement.
2. prism is installed
Each on track geometry state measurement instrument fore-and-aft direction both sides CP 1 at least 4 prisms are installed, prism direction with
Track geometry status measuring instrument direction of advance is consistent.
3. the use of total powerstation
Total powerstation is propped up at the other wire center of same a line away from track geometry status measuring instrument direction of advance 60～70m,
The namely distance of a pair adjacent C P 1, and by total powerstation centering, leveling.Manually sight furthermost a pair CP III point, instrument
Device just can sight remaining 6 CP III point automatically, because 8 CP 1 are known point, the program that total powerstation carries can be by
Just now 8 CP 1 sighted carry out error analysis, take 6 CP therein 1 and carry out compensating computation, finally determine oneself
Position, the namely coordinate of total powerstation.So total powerstation just sets station and completes.
4. track geometry status gage data gathers
Track geometry status gage data collection is a process the most easily, can be according to on-the-spot demand
Arrange the mode of data acquisition, under normal circumstances Cha Qu and 3 in Curve Segment can in the way of using all data acquisitions of every track,
Straight line location then can gather three points (in two of plate and plate) by one block of plate.
After place shifted onto by track geometry status measuring instrument track geometry status measuring instrument, unclamp rim brake track geometry status and survey
Amount instrument is just fixed up, and operation track geometry status measuring instrument computer carries out data acquisition, and it is several that total powerstation can sight track automatically
What state measurement instrument prism, and the data of collection and are stored to computer by RTTY.
5. turn station
When track geometry status measuring instrument is shifted onto close to total powerstation, carry out turning station.First track geometry status is measured
The prism of instrument rearmost moves on to forefront, then 60 70m that moved forward by total powerstation, centering, leveling, continues the operation of above-mentioned 3,4 steps
?.
In actual test result, find during the swollen regulation of differential frost heave in 2012 to 2013 years winters, roadbed frost damage
Serious section in-situ processing workload is very big.In order to ensure 2014 differential frost heave renovating effects, comprehensively analyze at 2013 240
There is position and freeze height (frost heave boss and the depth displacement maximum of the non-boss of frost heave in 10 meters) feelings in differential frost heave
Condition, before 2013 enter the winter to 37 at freeze high above the culvert of more than 4.5mm, and at 15 differential frost heave concentrate, peak value
Bigger section, utilizes the railway ballastless track that there is problem of frost heave to safeguard that processing method carries out pre-backing plate process.
From differential frost heave in 2014, a situation arises, at 30 above culvert in pre-backing plate section, do not produce at 16 I level and
More than transfinite disease, accounts for 53%, and other pre-backing plate place does not producesLevel transfinites disease, it is seen that the pre-backing plate of science is regulation inequality
Even frost heave serves useful effect.As a example by downlink 148.022～148.073km: on November 22nd, 2013 to this at carry out
Pre-backing plate processes, pre-mat thickness 5mm, length 76m, and both sides along slope by 1/3000, do not occur I grade so far and report to the police above.Should
By this method, frost heaves in 2014 and spring reduce workload 100% when melting falling, and the spring in 2014 melts saving expenses of labour 14.16 ten thousand yuan,
2015-2016 years anticipated saving expensess of labour 240,000 yuan.Differential frost heave the most treated by the present method transfinites place, need not be again
Operation.
For the differential frost heave produced during frost heave after entering the winter, preferentially have employed part and remove liner-plate method, winter is uneven
The even frost heave handled work operations amount in place that transfinites reduces 50%, and spring next year melts falling and processes workload and reduce 100%, 2013-
2014 the Spring Festival holidays save expensess of labour 31.27 ten thousand yuan, it is contemplated that-2015 years winters in 2014 save expenses of labour 62.38 ten thousand yuan, with after at this method
The differential frost heave of reason transfinites place need not subjob again.
Having the beneficial effect that of the embodiment of the present invention:
One, orbital forcing is improved, it is ensured that traffic safety.
According to technical solution of the present invention, solve roadbed and track inhomogeneous deformation that concrete for bridge use frost heave causes is transfinited and asked
Topic, can realize throughout the year, not transfinite including frost heave and thaw collapse Rail inspection in season, improve the ride comfort of track,
Train operation comfort level and safety is made to be guaranteed, it is ensured that passenger's safety of life and property.
Two, realize one-stop operation, put things right once and for all.
As long as the depth displacement of frost heave boss and the non-boss of frost heave is within the specific limits and position is relatively fixed, root
Roadbed and the non-fragment orbit inhomogeneous deformation problem of concrete for bridge use frost heave initiation can be forever solved according to technical solution of the present invention, real
Existing one-stop operation, puts things right once and for all.
Three, reduce labor intensity, reduce maintenance workload.
Use prior art to need frequent operation, repeatedly construct, especially in frost heave and thaw collapse traffic safety in season hidden danger
And maintenance workload is huge, operating condition is the arduousest, and working environment temperature is close to subzero 40 DEG C sometimes, uses the present invention
Technical scheme overcomes above drawback, the operation when temperature is comfortable, decreases the workload under severe cold condition, greatly reduces duty
Work labor intensity and the productive expenditure.
Four, method is easy-to-understand, is beneficial to popularize.
Technical solution of the present invention is completely according to existing detection means and equipment, especially at ballastless track of high-speed railway, and institute
The basic condition needing data to obtain possesses completely, and this method therefore all can be used in worldwide to process roadbed and bridges and culverts base
The track inhomogeneous deformation overrun issues that plinth frost heave causes, operational approach is readily understood, and feasibility is strong, it is easy to promote.
The railway ballastless track of the existence problem of frost heave of the embodiment of the present invention safeguards processing method, and its non-fragment orbit position shows
It is intended to as it is shown on figure 3, in figure 3, including: orbital base (1), dynamically detection positive peak I level transfinite (2), dynamically detect posivtive spike
ValueLevel transfinites (3), dynamically detects positive peakLevel transfinites (4), dynamic detection negative peak I level transfinites (5), it is negative dynamically to detect
Peak I level transfinites (6), dynamically detection negative peak I level transfinite (7), remove after plate track top after rail top face elevation (8), frost heave in advance
Face elevation (9).It is protruding that the present invention reduced frost heave according to historical orbit physical dimension and line position parameter before frost heave season in advance
Position track elevation, after until winter, circuit has frozen, the track projection amount reducing track elevation section will be with reduction amount in advance
Cancel out each other, it is achieved dynamic and static detection data do not transfinite.
Concrete operations are: reduced frost heave boss track before frost heave season in advance according to historical orbit parameters high
Journey, reduces orbital base elevation of top surface in advance and reaches pre-and remove rail top face elevation (8) position after plate, reduce section both sides in advance and press
According to carrying out along slope operation not less than 1:3000 ratio, it is ensured that before frost heave season, Rail inspection does not transfinites.Treat that winter, circuit was sent out
After life has been frozen, reduce track elevation section track projection amount and will cancel out each other with reduction amount in advance, effectively reduce frost heave and occur
Rear rail top face elevation (9), it is ensured that dynamic and static detection data do not transfinite.After spring thaw collapse, height above rail surface is fallen after rise to removing plate in advance
Rear rail top face elevation (8), even if this section frost heave of next year occurs again, still can realize dynamic and static detection physical dimension and not surpass
Limit.
The railway ballastless track of the existence problem of frost heave of the embodiment of the present invention safeguards processing method, and its non-fragment orbit position shows
It is intended to as shown in Fig. 4-a and Fig. 4-b, in Fig. 4-a, including: orbital base (1), dynamically detection positive peak I level transfinite (2), move
State detection positive peakLevel transfinites (3), dynamically detects positive peakLevel transfinites (4), dynamic detection negative peak I level transfinites (5),
Dynamically detection negative peak I level transfinite (6), dynamically detection negative peak I level transfinite (7), rail top face elevation (8) after pre-backing plate, freeze
Swollen rear rail top face elevation (9) transversary thing-bridge (10), roadbed (11),.
The embodiment of the present invention raised the bridge of the non-boss of frost heave before frost heave season in advance to transition section
End face track elevation, lift bridges beam-ends orbital base elevation of top surface, after circuit generation in winter frost heave, transition section road
Track depth displacement after base track frost heave bossing track elevation pads in advance with beam-ends effectively reduces, it is achieved dynamic and static detection is several
What size does not transfinites.
Concrete operations are: the bridge end face of the transition frost heave non-boss of section frost heave is carried out pre-backing plate operation,
Lift bridges beam-ends orbital base elevation of top surface, reaches rail top face elevation (8) position after pre-backing plate, pre-pad section both sides according to
Carry out along slope operation not less than 1:3000 ratio, it is ensured that before frost heave season, Rail inspection does not transfinites.Treat that winter, circuit occurred
Rail top face elevation (8) difference effectively fall after having frozen, after height above rail surface (9) and beam-ends pad in advance after transition section roadbed frost damage
Low, it is achieved dynamic and static detection physical dimension does not transfinites.After spring thaw collapse, height above rail surface is fallen after rise to entering state before the winter, and next year is i.e.
Making this section frost heave again occur, still can realize dynamic and static detection physical dimension does not transfinites.
In with reference to Fig. 4-b, including: orbital base (1), dynamically detection positive peak I level transfinite (2), dynamically detect posivtive spike
ValueLevel transfinites (3), dynamically detects positive peakLevel transfinites (4), dynamic detection negative peak I level transfinites (5), it is negative dynamically to detect
Peak I level transfinites (6), dynamically detection negative peak I level transfinite (7), rail top face elevation (8), transversary thing-culvert after pre-backing plate
Hole (9), roadbed (10).The present invention satisfies the need and contains the culvert jacking row pre-backing plate operation of the non-boss of transition frost heave, raises culvert in advance
Top track baseline elevation of top surface (8), pre-pad section both sides are according to carrying out along slope operation not less than 1:3000 ratio, it is ensured that frost heave season
Before joint, Rail inspection does not transfinites.After culvert in winter both sides roadbed section track has frozen, rail top face elevation (11) pushes up with containing
Rail top face elevation (8) difference after pre-pad effectively reduces, it is achieved dynamic and static detection physical dimension does not transfinites.
Concrete operations are: satisfy the need and contain the culvert jacking row pre-backing plate operation of the non-boss of transition frost heave, raise in advance and contain top
Orbital base (1) is to elevation of top surface (8), and pre-pad section both sides are according to carrying out along slope operation not less than 1:3000 ratio, it is ensured that freeze
Before swollen season, Rail inspection does not transfinites.After culvert in winter both sides roadbed section track has frozen rail top face elevation (11) with
Contain rail top face elevation (8) difference after the pre-pad in top effectively to reduce, it is achieved dynamic and static detection physical dimension does not transfinites.Spring melts
After Chen, height above rail surface is fallen after rise to entering state before the winter, even if this section frost heave of next year occurs again, still can realize dynamic and static detection
Physical dimension does not transfinites.
The railway ballastless track of the existence problem of frost heave of the embodiment of the present invention safeguards processing method, and its non-fragment orbit position shows
It is intended to as it is shown in figure 5, in Figure 5, including: orbital base (1), dynamically detection positive peak I level transfinite (2), dynamically detect posivtive spike
ValueLevel transfinites (3), dynamically detects positive peakLevel transfinites (4), dynamic detection negative peak I level transfinites (5), dynamically detects negative peak
Value I level transfinites (6), dynamically detection negative peak I level transfinite (7), rail top face elevation (8) after pre-backing plate, frozen rail top face afterwards
Elevation (9).The present invention is for carrying out pre-backing plate operation, in advance to the roadbed continuous and uneven frost heave non-boss of section frost heave before entering the winter
First raise frost heave non-boss track elevation, after both sides, Yu Dian in winter district occur frost heave projection, boss rail top face
Elevation effectively reduces with the rail top face depth displacement of pre-pad section, it is achieved dynamic and static detection physical dimension does not transfinites.
Concrete operations are: the roadbed continuous and uneven frost heave non-boss of section frost heave is carried out pre-backing plate operation, in advance
Ascending rails baseline (1) is to elevation of top surface (8) position, and pre-pad section both sides carry out making along slope according to not less than 1:3000 ratio
Industry, it is ensured that before frost heave season, Rail inspection does not transfinites.After Yu Dian in winter district two siding track generation frost heave projection, after frost heave
Rail top face elevation (8) difference after rail top face elevation (9) and pre-pad will effectively reduce, it is achieved dynamic and static detection physical dimension
Do not transfinite.After spring thaw collapse, height above rail surface is fallen after rise to entering state before the winter, even if this section frost heave of next year occurs again, still may be used
Realize dynamic and static detection physical dimension not transfinite.
The railway ballastless track of the existence problem of frost heave of the embodiment of the present invention safeguards processing method, and its non-fragment orbit position shows
It is intended to as shown in Figure 6, in figure 6, including: orbital base (1), dynamically detection height positive peak I level transfinite (2), dynamically detect
Just positive peakLevel transfinites (3), dynamically detects height positive peakLevel transfinites (4), dynamic detection height negative peak I level transfinites
(5), dynamically detection height negative peak I level transfinite (6), dynamically detection height negative peak I level transfinite rail top face after (7), frost heave
Elevation (8), remove rail top face elevation (9) after plate, fall after rise after rail top face elevation (10).
Differential frost heave of the present invention withdraws from part backing plate principle after occurring be that the disease processing dynamic and static detection discovery transfinites
Carry out removing plate operation during point, remove plate amount be transfinite value half about, until frost heave and thaw collapse stably after, this frost heave section is dynamic and static
State detection physical dimension does not transfinites.Even if next year, this section frost heave occurred again, dynamic and static detection physical dimension still can be realized not
Transfinite.
Concrete operations are: rail top face elevation (8) after frost heave carrying out part and removes plate operation, part reaches track after removing plate
Elevation of top surface (9) position, it is ensured that frost heave Rail inspection in season does not transfinites, after thaw collapse is stable, rail top face elevation (9) position
Putting rail top face elevation (10) after becoming falling after rise, dynamic and static detection physical dimension does not transfinites.Even if this section frost heave of next year
Again occurring, height above rail surface reaches rail top face elevation (8) after frost heave, and detection data physical dimension does not transfinites.
A kind of railway ballastless track that there is problem of frost heave safeguards that processing means, described device include:
Road surface parameter acquiring device, for obtaining described non-fragment orbit then and Rail inspection parameter over the years and line position
Parameter；
Division of period orbit device, freezes for being divided into by non-fragment orbit according to described Rail inspection over the years and line position parameter
Swollen boss and the non-boss of frost heave, frost heave boss is that non-fragment orbit produces protruding position, institute in frost heave season
Stating the non-boss of frost heave is that non-fragment orbit does not produce the position of projection season in frost heave；
First track regulator, for raising frost heave non-boss track elevation or reducing frost heave before frost heave season
Boss track elevation, reduces frost heave boss track elevation in frost heave season.
Preferably, described first track regulator includes:
Depth displacement getter, for obtaining roadbed and concrete for bridge use frost heave causes the first depth displacement and second elevation of track
Difference, described first depth displacement is frost heave track in season elevation and the track elevation difference preset, and described second depth displacement is frost heave
Boss and the track depth displacement of the non-boss of frost heave；
Second track regulator, freezes for raising before frost heave season according to described first depth displacement and the second depth displacement
Swollen non-boss track elevation or reduction frost heave boss track elevation, reduce frost heave boss track in frost heave season
Elevation.
Preferably, described second track regulator includes:
Cushion block quantity getter, for according to described frost heave boss and the depth displacement of the non-boss of frost heave, regulation
Threshold values, backing plate height and the condition of use obtain backing plate quantity N, and wherein N is the integer more than or equal to 0；
3rd track regulator, increased below frost heave non-boss rail before frost heave season N block backing plate or
Frost heave boss rail decreases below N block backing plate；
4th track regulator, for decreasing below N block backing plate at frost heave boss rail season in frost heave.
Preferably, described device also includes:
Specification actuator, is used for utilizing described Rail inspection parameter to reduce boss track in frost heave part in season
Elevation, it is ensured that Rail inspection parameter after thaw collapse still in " specification " allowed band.
Preferably, described device also includes:
Described device also includes:
5th track regulator, is used for utilizing described Rail inspection parameter and line position parameter to raise non-season in frost heave
Boss track elevation.
Claims (3)
1. the railway ballastless track that there is problem of frost heave safeguards processing method, it is characterised in that if frost heave boss
The depth displacement of boss non-with frost heave is within the specific limits and position is relatively fixed, and uses this method one-stop operation to get final product permanent
Solving roadbed and the non-fragment orbit inhomogeneous deformation problem of concrete for bridge use frost heave initiation, described method includes:
Obtain described non-fragment orbit then and Rail inspection parameter over the years and line position parameter；
According to described Rail inspection and line position parameter, non-fragment orbit is divided into frost heave boss and the non-lobe of frost heave
Position, frost heave boss is that non-fragment orbit produces protruding position in frost heave season, and the non-boss of described frost heave is without tiny fragments of stone, coal, etc. rail
Road does not produce the position of projection season in frost heave；
Before frost heave season, raise frost heave non-boss track elevation or reduce frost heave boss track elevation, in frost heave
Reduce frost heave boss track elevation season；
Described before frost heave season, raise frost heave non-boss track elevation or reduce frost heave boss track elevation,
Frost heave reduces frost heave boss track elevation season, including:
Acquisition roadbed and concrete for bridge use frost heave cause the first depth displacement and second depth displacement of track, and described first depth displacement is for freezing
Swollen season track elevation with the track elevation difference preset, described second depth displacement is frost heave boss and the non-lobe of frost heave
The track depth displacement of position；
According to described first depth displacement and the second depth displacement raised before frost heave season frost heave non-boss track elevation or
Reduce frost heave boss track elevation, reduce frost heave boss track elevation season in frost heave；
It is described that to raise frost heave non-boss track according to described first depth displacement and the second depth displacement before frost heave season high
Journey or reduction frost heave boss track elevation, reduce frost heave boss track elevation in frost heave season, including:
Obtain frost heave boss and the depth displacement of the non-boss of frost heave and backing plate quantity；
According to described frost heave boss and the depth displacement of the non-boss of frost heave, prescribed threshold, backing plate height and the condition of use
Obtaining backing plate quantity N, wherein N is the integer more than or equal to 0；
Frost heave increased N block backing plate below frost heave non-boss rail before season or frost heave boss rail decreases below
N block backing plate；
N block backing plate is decreased below at frost heave boss rail season in frost heave.
The railway ballastless track that there is problem of frost heave the most as claimed in claim 1 safeguards processing method, it is characterised in that described
Method also includes:
Described Rail inspection parameter is utilized to reduce boss track elevation in frost heave part in season, it is ensured that track geometry chi
Very little parameter either in frost heave season still in thaw collapse season all the time in " specification " allowed band.
The railway ballastless track that there is problem of frost heave the most as claimed in claim 1 safeguards processing method, it is characterised in that described
Method also includes:
Described Rail inspection parameter and line position parameter is utilized to raise non-boss track elevation season in frost heave.
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| CN201410309370.3A CN104032631B (en) | 2014-07-01 | 2014-07-01 | A kind of railway ballastless track that there is problem of frost heave safeguards processing method |
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| CN201410309370.3A CN104032631B (en) | 2014-07-01 | 2014-07-01 | A kind of railway ballastless track that there is problem of frost heave safeguards processing method |
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| CN109297398A (en) * | 2018-11-14 | 2019-02-01 | 中国铁路沈阳局集团有限公司科学技术研究所 | A kind of monitoring of railway bed frost heave and analysis system based on Beidou location technology |
| CN112989591B (en) * | 2021-03-08 | 2022-01-18 | 北京交通大学 | Track deformation prediction method for frost heaving part of high-speed railway roadbed |
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| ATE7159T1 (en) * | 1979-11-08 | 1984-05-15 | Les Fils D'auguste Scheuchzer S.A. | CONSTRUCTION TRAIN FOR STABILIZING A RAILWAY TRACK. |
| CN201347522Y (en) * | 2008-12-31 | 2009-11-18 | 齐齐哈尔富铁轨枕有限公司 | Post-tensioned prestressing bearing platform type track plate of severe cold regions |
| CN101851884A (en) * | 2010-03-23 | 2010-10-06 | 中国建筑股份有限公司 | Paving method of CRTS I type plate type ballastless track slab in severe cold region |
| CN202730544U (en) * | 2012-08-08 | 2013-02-13 | 中铁第一勘察设计院集团有限公司 | Frost heave prevention roadbed structure in deep seasonal permafrost region |
| CN202755273U (en) * | 2012-09-11 | 2013-02-27 | 铁道第三勘察设计院集团有限公司 | Ballastless track high speed railway heat preservation and freeze protection subgrade structure |
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