CN102230311B - Precision detection method applicable to slab ballastless track plate - Google Patents

Precision detection method applicable to slab ballastless track plate Download PDF

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CN102230311B
CN102230311B CN 201110085777 CN201110085777A CN102230311B CN 102230311 B CN102230311 B CN 102230311B CN 201110085777 CN201110085777 CN 201110085777 CN 201110085777 A CN201110085777 A CN 201110085777A CN 102230311 B CN102230311 B CN 102230311B
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Prior art keywords
track plates
bolt
track
bolt stake
stake
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CN102230311A (en
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石晓建
徐振华
毛军喜
于光远
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CHINA COMMUNICATIONS THIRD NAVIGATIONAL BUREAU 2ND ENGINEERING Co Ltd
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CHINA COMMUNICATIONS THIRD NAVIGATIONAL BUREAU 2ND ENGINEERING Co Ltd
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Abstract

The invention relates to a precision detection method applicable to a slab ballastless track plate. The precision detection system comprises a self-centering screw hole adapter, a precision spherical prism, a meteorological sensor, a bolt pile detecting sleeve, a total station, track plate detecting software, post-processing analysis software and a computer. By using the detection system and method, the detection time of each track plate is shortened to 6-8 minutes, and the detection precision and the detection speed of the track plate are increased.

Description

A kind of accuracy checking method that is applicable to fragment-free track slab
Technical field
The present invention relates to a kind of accuracy checking method that is applicable to fragment-free track slab.
Background technology
Non-fragment orbit has that globality is strong, good stability, sturdy and durable, the advantage such as track deformation is little, the distortion accumulation is slow, is conducive to high speed traveling, is used widely in world many countries.In world's railway ballastless track form of structure, take the unit plate type ballastless track structure figure of the double-block type of Germany, Borg slab ballastless track structure and Japan as representative.Germany is in that Berlin in 1998---the Hanover builds up and puts into effect, and operation speed per hour is 300km, and it is 250km that Japan adopts the Shinkansen of platy ballastless track structure to move speed per hour.
China railways will be adjusted into more than 120,000 kilometers by 100,000 kilometers in the year two thousand twenty china railway revenue kilometres object of planning, wherein Line for Passenger Transportation is adjusted into 1.6 ten thousand kilometers by 1.2 ten thousand kilometers, the electrification rate is adjusted into 60% by 50%, the Railway Investment volume has reached 2 trillion yuan, enter now railway projects and built peak time, at present, built or mostly adopt ballastless track structure in the high ferro of building.
The Ministry of Railways has proposed the concrete quality requirements such as profile outward appearance to the slab ballastless track concrete track slab finished product.And the precision that the track plates end product quality is measured control can improve laying speed and guarantee to lay precision, and the precision of whole engineering, progress have all obtained effective guarantee.Under the satisfactory prerequisite of railway plate die quality, the plate type quality of producing is just secure.Only have the raising of accuracy of detection, the track plates quality is just more guaranteed, more can guarantee ride comfort, stability and the reliability of track plates.Traditional detection method adopts the equipment such as slide measure, clearance gauge, guiding ruler and level gauge mostly, and not only work efficiency is slow, and precision is low, also affects the detection progress.
Summary of the invention
The invention provides a kind of precision detection system that is applicable to fragment-free track slab, comprise that at least 4 centering screw adapters, at least 4 accurate spherical prisms, at least 1 meteorological sensor, at least 4 bolt stake detection sleeves, at least 1 total powerstation, at least 1 cover track plates detect software, at least 1 cover reprocessing analysis software and at least 1 computer.
Self-centering screw adapter, accurate spherical prism fitted together to be placed on the track plates embedded sleeve barrel consist of observation point, perhaps accurate spherical prism, bolt stake detection sleeve fit together to be placed in the bolt stake of stretching out in the track slab steel mould hole and consist of observation point, track plates detects software and is contained on the total powerstation, reprocessing analysis software is contained on the computer, finishes the software and hardware preparation of detection system.
At the accuracy checking method that described precision detection system uses, with total powerstation observation point is measured first, comprise the steps:
. Setting Station of Total Station Instrument;
. the total powerstation parameter is set;
. the reference line location;
. bolt stake/track plates embedded sleeve barrel coordinate data gathers;
. preserve survey data to total powerstation.
After measurement data acquisition is complete, total powerstation is linked to each other with computer, survey data is imported computer carry out post processing.
The poster processing soft on the computer is carried out following operating procedure:
. limit is poor to be arranged;
. seek best fit plane, do the coplanarity analysis;
. all point coordinates are projected to best fit plane;
. bolt hole transverse and longitudinal linearity is analyzed;
. the bolt hole symmetrical analysis;
. the generating report forms file, finish detection.
The poster processing soft carries out analysis and evaluation to track slab steel mould or finished product track plates, the bolt stake/coplanarity of track plates embedded sleeve barrel, synteny, symmetrical parallel, isometry is made detecting judge.
The coplanarity of bolt stake/track plates embedded sleeve barrel requires: each bolt stake/track plates embedded sleeve barrel bottom or top should be in one plane.
The synteny of bolt stake/track plates embedded sleeve barrel requires: each row or each row bolt stake/track plates embedded sleeve barrel center line should be point-blank.
The symmetrical parallel requirement of bolt stake/track plates embedded sleeve barrel: the relative plate center line of each row bolt stake/track plates embedded sleeve barrel center line should be symmetrical parallel.
The isometry of bolt stake/track plates embedded sleeve barrel requires: the distance between each row bolt stake/track plates embedded sleeve barrel should be the standard sleeper spacing.
This precision detection system is mainly to vertical linearity of the coplanarity of the screw of track plates, screw, make analysis with respect to the symmetry of plate center line, and analytic process is undertaken by the poster processing soft fully.
To being analyzed as follows of coplanarity.Import the three-dimensional coordinate file of screw central point, all screw points are carried out plane fitting, obtain a fit Plane that can represent all screw point positions, all screws are put the dispersion minimum on this plane.In the reality, by the plane that three eyeballs form, very approaching with this fit Plane, it also is the plane that exists in the reality, and we are called best fit plane.In program coplanarity analysis module, dash area is best fit plane, and this vertical distance to best fit plane of numeral is worth for just, represents to be higher than the plane, is worth for negative, and expression is lower than the plane.
Fit Plane equation solution method:
Suppose that the fit Plane equation is: Z=AX+BY+C; Point coordinates is:
According to the thought of least square method, put the distance minimum of corresponding points on the fit Plane, namely reach the purpose of best fit.Therefore, consider to find the solution the minimum value of this square distance and M.Design formulas is as follows:
In order to find the solution the minimum value of M, namely want solving equations:
Find the solution this equation group: order:
By the screw point is calculated and can obtain:
Be analyzed as follows symmetric.At first, all screw points toward the best fit plane projection, are obtained the somewhat new coordinate of institute, have a few in one plane at this moment.Secondly, determine the position of plate center line, the actual value of plate center line is unavailable.Program will be set up the linear equation of plate center line, then the distance of calculating the plate center line of have a few and this point are poor to the theoretical value of plate center line, and it is minimum that plate center line equation must satisfy these differences, the employing least square method, separate Simultaneous Equations, obtain plate center line linear equation.Then, in the symmetrical analysis module, calculate poor to distance of plate center line and theoretical value of each point, on the occasion of, expression greater than theoretical value, negative value, expression is less than theoretical value.Adopt least square method, obtain the best straight line of vertical 4 row points, and calculate the angle with the plate center line, i.e. collimation.Angle is less, and collimation is better.
Fitting a straight line equation solution method:
All points are to the straight line that simulates Error should be minimum, when namely what value (a, b) get respectively, below value (error) minimum of this equation:
Directly provide the parametric solution of this formula:
Wherein
After bringing arrangement into, can get
Be analyzed as follows linear.In the linearity analysis module, vertical 4 row points are carried out separately fitting a straight line, eight points of every row are obtained the deviation of these row and fitting a straight line, indicate each point to the deviation of best straight line, on the occasion of, representing left avertence, negative value represents right avertence.Fitting a straight line is identical with symmetrical analysis cathetus fitting formula herein.
Detect sleeve and self-centering screw adapter by using track slab steel mould/finished product track plates bolt stake, can measure accurately the center in bolt stake or hole and corresponding mould bottom surface, the elevation of plate face; Use spherical prism to do measurement target, centering is accurate, rapidly and efficiently.Adopt high accuracy to have the robot measurement of automatic target search, automatic target aiming, the method that cooperates the poster processing soft to detect not only can the minimizing personnel export, and precision is high, easy to operate, quick, reduces human error.The poster processing soft automatically generates figure and marks analysis result, and is visual in image, easy to use, reduces human error, shortens the resolving time, increases work efficiency.
Description of drawings
Fig. 1 is track plates appearance and size check detailed rules and regulations;
Fig. 2 is the detection system structure chart;
Fig. 3 is the observation point pie graph;
Fig. 4 is track plates/punching block overhaul flow chart;
Fig. 5 is the number definition figure of bolt stake/track plates embedded sleeve barrel on instrument stan station location and track slab steel mould and the track plates.
Being labeled as of each element among the figure:
1. self-centering screw adapter;
2. accurate spherical prism;
4. the bolt stake detects sleeve;
9. bolt stake;
23. punching block.
The specific embodiment
Technical purpose and technique effect for describing technology contents of the present invention, architectural feature, realization in detail are elaborated below in conjunction with drawings and embodiments.
Embodiment 1: the invention provides a kind of precision detection system that is applicable to fragment-free track slab, comprise that at least four centering screw adapters 1, at least four accurate spherical prisms 2, at least one meteorological sensor 3, at least one bolt stake detection sleeve 4, at least one total powerstation 5, at least one cover track plates detect software 6, at least one cover reprocessing analysis software 7 and at least one computer 8.
A self-centering screw adapter 1, an accurate spherical prism 2 are fitted together to be placed on the track plates embedded sleeve barrel and consist of observation point, perhaps a centering screw adapter 1, accurate spherical prism 2 and bolt stake are detected sleeve 4 and fit together to be placed in the bolt stake 9 of stretching out in the track slab steel mould hole and consist of observation point.Track plates detects software 6 and is contained on the total powerstation 5, and reprocessing analysis software 7 is contained on the computer 8.On the precision detection system basis of described fragment-free track slab, use the accuracy checking method of fragment-free track slab.Described method comprises the measurement data acquisition step, comprises the steps:
. with the basic leveling of track plates or railway plate die surface;
. with 5 of total powerstations near railway plate die or track plates center line, apart from about 1.5 meters far away of railway plate die or track plates near-end; Connect meteorological sensor 3, make it to make zero, open constantly update the system, and before observation, input on-the-spot meteorologic parameter and the prism additive constant of use;
. measurement parameter is set, comprises that railway plate die and track plates template and observation point are the line space that arrange in bolt stake/hole, column pitch and prism are high;
. the reference line location, be that A capable the 1st row bolt stake 9/ track plates embedded sleeve barrel and H1 bolt stake 9/ track plates embedded sleeve barrel are on capable the 1st row bolt stake of the H 9/ track plates embedded sleeve barrel with two A1 bolt stake 9/ track plates embedded sleeve barrels that are placed on railway plate die and the track plates left side with sleeve 4 or the adapter of ball-type prism 2 first, order is observed the prism on A1 number and the H1 bolt stake 9/ track plates embedded sleeve barrel, the location of finishing reference line;
. gather bolt stake/hole coordinate data, at first will be placed on A1 with bolt stake detection sleeve 4 or the self-centering screw adapter 1 of ball-type prism 2, A2, A3, the A4 observation point is on the bolt stake 9/ track plates embedded sleeve barrel, finish the measurement of these four observation points, then will move to B1 with bolt stake detection sleeve 4 or the self-centering screw adapter 1 of ball-type prism, B2, B3, the B4 observation point is bolt stake 9/ track plates embedded sleeve barrel, finish the measurement of lower four observation points, successively operation until on track slab steel mould and the track plates all observation points be that corresponding survey data is finished and preserved in the data acquisition of bolt stake 9/ track plates embedded sleeve barrel.
Measure complete after, by RS232 total powerstation 5 is linked to each other with computer 8.Then carry out subsequent step:
. from total powerstation 5 survey data is imported computer 8;
. limit is poor to be arranged;
. seek best fit plane, do the coplanarity analysis;
. all point coordinates are projected to best fit plane;
. bolt hole transverse and longitudinal linearity is analyzed;
. the bolt hole symmetrical analysis;
. generate relational graph, report file.
According to figure and the report file that the poster processing soft 7 is derived, judge that track plates in the requirement that whether has reached technical specification aspect coplanarity, symmetry, the linearity, finishes the accuracy detection to the plate-type ballastless track plate.
Use the system and method in the present embodiment, can finish the detection of a plate in 6 to 8 minutes, improved accuracy of detection and the speed of track plates.
Embodiment 2: on the basis of embodiment 1, further improve.The total powerstation 5 that the present invention adopts is Leica TCA1800, have directed and the standard features such as elevation transmission, resection, opposite side measurement and setting-out, after adding software, can also realize outstanding high measurement, hidden point measurement, area measurement, direction observation of many survey time, traverse, local resection function.Described total powerstation has been realized automatic target search, automatic target aiming, and its angle measurement accuracy is a survey time direction standard deviation 0.52, and its range accuracy is 1mm+1ppm.Improve precision and the automatization level measured, improved labor productivity.
Present embodiment also utilizes precise electronic level gauge come card DNA03, inspects comparison by random samples for the coplanarity precision of come card TCA1800 total powerstation.Result relatively differs maximum and is no more than 0.1mm, meets the Ministry of Railways about the requirement of the check-out console surface evenness ± 1.0mm of track plates.
In the present embodiment, in order to guarantee certainty of measurement, before installation mold, piling prepressing has been carried out on every mold basis, eliminated foundation settlement.Before every mold is paid and in front 10 operating periods, each inspection and adjustment of all adopting the projects such as mold formation degree after electronic level, Leica TCA1800 total powerstation and etalon carry out form removal, appearance and size, set up mould and used and checked account, regularly detect and maintain according to 7 days/time cycle, and formulated the Mould operation rules, instruct operating personnel's standard operation.The technical indicator precise controls such as the 64 mold base fixeds of guaranteeing to come into operation, planeness, appearance and size are the keys that ensures 64 blocks of plates of daily output.Adopt the track plates end product quality of this detection method by Ministry of Railways's product quality supervision and inspection center upper track site technology examination of Tiedaobu Transportation Bureau's tissue.
The above; it only is preferred embodiment of the present invention; be not to be restriction to protection domain of the present invention; so long as adopt technical scheme of the present invention; perhaps only be any conventional the modification or equivalent variations that to make by those of ordinary skill in the art, all fall among the present invention's scope required for protection.

Claims (3)

1. accuracy checking method that is applicable to fragment-free track slab, it is characterized in that: the precision detection system that the described accuracy checking method that is applicable to fragment-free track slab adopts comprises: self-centering screw adapter (1), accurate spherical prism (2), meteorological sensor (3), the bolt stake detects sleeve (4), total powerstation (5), track plates detects software (6), reprocessing analysis software (7) and computer (8), self-centering screw adapter (1), accurate spherical prism (2) fits together to be placed on the track plates embedded sleeve barrel and consists of observation point, perhaps accurate spherical prism (2), bolt stake detection sleeve (4) fits together and is placed on the upper formation of bolt stake (9) observation point of stretching out in the track slab steel mould hole, track plates detects software (6) and is contained on the total powerstation (5), reprocessing analysis software (7) is contained on the computer (8), centering screw adapter (1), accurate spherical prism (2) and bolt stake detect sleeve (4) and form the subsidiary equipment, total powerstation (5), track plates detects software (6) and foot rest forms robot measurement, and reprocessing analysis software (7) and computer (8) form data processing terminal;
Data acquisition step is as follows:
1.1, with the surface leveling of track plates or railway plate die;
1.2, with total powerstation (5) frame near railway plate die or track plates center line, about 1.5 meters far away apart from railway plate die or track plates near-end; Connect meteorological sensor (3), make it to make zero, open Real Time Correction System, and before observation, input on-the-spot meteorologic parameter and the prism additive constant of use;
1.3, measurement parameter is set, comprise that railway plate die and track plates template and observation point are the line space that bolt stake/hole is arranged, column pitch and prism are high;
1.4, reference line location, detect the A1 bolt stake (9) that sleeve (4) or self-centering screw adapter (1) be placed on railway plate die and the track plates left side/track plates embedded sleeve barrel i.e. capable the 1st row bolt stake (the 9)/track plates embedded sleeve barrel of A and H1 bolt stake (9)/track plates embedded sleeve barrel namely on capable the 1st row bolt stake (the 9)/track plates embedded sleeve barrel of H with two with the bolt stakes of ball-type prism first, order is observed the prism on A1 number and H1 bolt stake (the 9)/track plates embedded sleeve barrel, the location of finishing reference line;
1.5; gather bolt stake (9)/track plates embedded sleeve barrel coordinate data; at first will be placed on A1 with bolt stake detection sleeve (4) or the self-centering screw adapter (1) of ball-type prism; A2; A3; the A4 observation point is on bolt stake (9)/track plates embedded sleeve barrel; finish the measurement of these four observation points; then will move to B1 with bolt stake detection sleeve (4) or the self-centering screw adapter (1) of ball-type prism; B2; B3; the B4 observation point is bolt stake (9)/track plates embedded sleeve barrel; finish the measurement of lower four observation points, successively operation until on track slab steel mould or the track plates all observation points be that corresponding survey data is finished and preserved in the data acquisition of bolt stake (9)/track plates embedded sleeve barrel.
2. a kind of accuracy checking method that is applicable to fragment-free track slab as claimed in claim 1 is characterized in that: after obtaining survey data, as follows with reprocessing analysis software (7) treatment step:
2.1 from total powerstation (5) survey data is imported computer (8);
Arrange 2.2 limit is poor;
2.3 the searching best fit plane is done the coplanarity analysis;
2.4 all point coordinates are projected to best fit plane;
2.5 bolt hole transverse and longitudinal linearity is analyzed;
2.6 bolt hole symmetrical analysis;
2.7 generating report forms file.
3. a kind of accuracy checking method that is applicable to fragment-free track slab as claimed in claim 1, it is characterized in that: the quantity that self-centering screw adapter (1), accurate spherical prism (2), bolt stake detect sleeve (4) is at least respectively 4, the quantity of meteorological sensor (3), total powerstation (5), computer (8) is at least respectively 1, and the quantity that track plates detects software (6), reprocessing analysis software (7) is at least respectively 1 cover.
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CN102692185B (en) * 2012-06-13 2015-04-29 东南大学 Rapid detection method for ballastless track boards of high-speed railway
CN103017824B (en) * 2012-11-30 2015-08-12 中国有色金属长沙勘察设计研究院有限公司 Use the monitoring system of robot measurement
CN104482895A (en) * 2014-11-26 2015-04-01 中铁第一勘察设计院集团有限公司 Calibration method for slab ballastless track slab fine tuning frame of passenger rail line
CN105648860A (en) * 2016-01-11 2016-06-08 北京城建设计发展集团股份有限公司 Measurement and adjustment system and method for track board for urban track traffic
CN106952056A (en) * 2017-04-19 2017-07-14 中铁四局集团有限公司 A kind of management system of plate-type ballastless track plate
CN108492277A (en) * 2018-02-05 2018-09-04 中铁二十二局集团第二工程有限公司 A method of establishing track plates appearance detected size detection feature
CN109084706B (en) * 2018-06-25 2021-03-02 天津大学 Automatic detection method and device for measuring global flatness of robot sports field
CN110031248B (en) * 2019-05-20 2020-06-23 西南交通大学 Performance analysis and operation precision evaluation method for track slab automatic detection system
CN110846958B (en) * 2019-11-26 2021-04-27 中铁第四勘察设计院集团有限公司 Method for controlling construction line shape precision of ballastless track on cable-stayed bridge

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