CN102230311A - Precision detection system and method applicable to slab ballastless track plate - Google Patents
Precision detection system and method applicable to slab ballastless track plate Download PDFInfo
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- CN102230311A CN102230311A CN 201110085777 CN201110085777A CN102230311A CN 102230311 A CN102230311 A CN 102230311A CN 201110085777 CN201110085777 CN 201110085777 CN 201110085777 A CN201110085777 A CN 201110085777A CN 102230311 A CN102230311 A CN 102230311A
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Abstract
The invention relates to a precision detection system 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. The invention also provides a precision detection method based on the system. 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
Technical field
The present invention relates to a kind of accuracy detection system and method that is applicable to the plate-type ballastless track plate.
Background technology
Non-fragment orbit has that globality is strong, good stability, sturdy and durable, advantage such as track deformation is little, the distortion accumulation is slow, helps high speed traveling, is used widely in world many countries.In world's railway ballastless track form of structure, be representative with the double-block type of Germany, rich lattice plate-type ballastless track structure and Japanese unit plate-type ballastless track structure chart.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 plate-type 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, entered railway project construction peak time now, at present, built or mostly adopted the non-fragment orbit structure in the high ferro of building.
The Ministry of Railways has proposed concrete quality requirements such as profile outward appearance to plate-type ballastless track concrete track board finished product.And the precision of track board finished product mass measurement 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.Have only the raising of accuracy of detection, track plate quality is just more guaranteed, more can guarantee ride comfort, stability and the reliability of track plate.Traditional detection method adopts 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 influences the detection progress.
Summary of the invention
The invention provides a kind of accuracy 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 plate 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 pre-buried sleeve of track plate constitute 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 constitute observation point, the track plate 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.
The accuracy checking method that uses in described accuracy detection system is measured observation point with total powerstation earlier, comprises the steps:
. total powerstation is established the station;
. the total powerstation parameter is set;
. the reference line location;
. bolt hole/stake coordinate data collection;
. preserve survey data to total powerstation.
After measurement data acquisition finishes, 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:
. the limit difference is provided with;
. 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 report file, finish detection.
The poster processing soft carries out analysis and evaluation to track slab steel mould or finished product track plate, coplanarity, synteny, symmetrical parallel, the isometry in bolt stake/hole is made detecting judge.
The coplanarity in bolt stake/hole requires: each bolt stake/bottom, hole or top should be in one plane.
The synteny in bolt stake/hole requires: the stake of row bolt/the hole center line should be point-blank for each row or each.
The symmetrical parallel requirement in bolt stake/hole: the relative plate center line of each row bolt stake/hole center line should be symmetrical parallel.
The isometry in bolt stake/hole requires: the distance between each row bolt stake/hole should be the standard sleeper spacing.
This accuracy detection system is mainly to vertical linearity of the coplanarity of the screw of track plate, 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 the 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 are formed, 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 a 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, promptly 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, the group of promptly will solving an equation:
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, the distance of calculating the plate center line of have a few then and this theoretical value poor that puts the plate center line, 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 the poor of each distance of putting the plate center line and theoretical value, 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 more little, and collimation is good more.
Fitting a straight line equation solution method:
All points are to the straight line that simulates
Error should be minimum, just (a, when b) getting what value 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 fitting a straight line separately, eight points of every row are obtained the deviation of these row and fitting a straight line, indicate the deviation of each point to best straight line, on the occasion of, represent left avertence, negative value is represented 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 crab bolt stake, can measure the center in bolt stake or hole and corresponding mould bottom surface, the elevation of plate face accurately; 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 be exported, and precision height, easy to operate, quick, reduces human error.The poster processing soft generates figure automatically 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 plate 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 plate/punching block testing process figure;
Fig. 5 is bolt stake on instrument stan station location and track slab steel mould and the track plate/hole number definition figure.
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 accuracy 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 detect sleeve 4, at least one total powerstation 5, at least one cover track plate 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 pre-buried sleeve of track plate and constitute 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 constitute observation point.The track plate detects software 6 and is contained on the total powerstation 5, and reprocessing analysis software 7 is contained on the computer 8.On the accuracy detection system-based 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 plate or railway plate die surface;
. with 5 of total powerstations near railway plate die or track plate center line, apart from about 1.5 meters far away of railway plate die or track plate near-end; Connect meteorological sensor 3, make it to make zero, open update the system constantly, and before observation, import the on-the-spot meteorologic parameter and the prism additive constant of use;
. measurement parameter is set, comprises that railway plate die and track plate template and test point are the line space that arrange in bolt stake/hole, column pitch and prism height;
. the reference line location, first A1 bolt stake/hole that the sleeve 4 or the adapter of two dribbling type prisms 2 are placed on the railway plate die and the track plate left side is that capable the 1st row bolt stake/hole of A and H1 bolt stake/hole are on capable the 1st row bolt stake/hole of H, order is observed the prism on A1 number and the H1 bolt stake/hole, the location of finishing reference line;
. gather bolt stake/hole coordinate data, at first the sleeve 4 of dribbling type prism 2 or adapter are placed on A1, A2, A3, the A4 test point is on bolt stake/hole, finish the measurement of these four test points, sleeve or adapter with dribbling type prism moves to B1, B2, B3, B4 test point/bolt stake/hole then, finish the measurement of following four test points, operate the data acquisition in all test points/bolt stake/hole on track slab steel mould and track plate successively and finish and preserve corresponding survey data.
After measurement finishes, total powerstation 5 is linked to each other with computer 8 by RS232.Carry out subsequent step then:
. from total powerstation 5 survey data is imported computer 8;
. the limit difference is provided with;
. 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 the track plate 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 the accuracy of detection and the speed of track plate.
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 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 at the coplanarity precision of come card TCA1800 total powerstation.Result relatively differs maximum and is no more than 0.1mm, meets the requirement of the Ministry of Railways about the check-out console surface evenness ± 1.0mm of track plate.
In the present embodiment,, before installation mold, piling prepressing has been carried out on every mold basis, eliminated foundation settlement in order to guarantee certainty of measurement.Before every mold is paid and in preceding 10 operating periods, each inspection and adjustment of all adopting 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.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 of the Ministry of Railways product quality supervision and inspection center upper track site technology examination of the track board finished product quality of this detection method by Tiedaobu Transportation Bureau's tissue.
The above; it only is preferred embodiment of the present invention; be not to be qualification 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 (4)
1. accuracy detection system that is applicable to the plate-type ballastless track plate, it is characterized in that: described accuracy detection system comprises self-centering screw adapter (1), accurate spherical prism (2), meteorological sensor (3), the bolt stake detects sleeve (4), total powerstation (5), the track plate 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 pre-buried sleeve of track plate and constitutes observation point, perhaps accurate spherical prism (2), bolt stake detection sleeve (4) fits together and is placed on the last formation of bolt stake (9) observation point of stretching out in the track slab steel mould hole, the track plate 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), the track plate detects software (6) and foot rest is formed robot measurement, and reprocessing analysis software (7) and computer (8) are formed data processing terminal.
2. a kind of accuracy detection system that is applicable to the plate-type ballastless track plate 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 4 respectively, the quantity of meteorological sensor (3), total powerstation (5), computer (8) is at least 1 respectively, and the quantity that the track plate detects software (6), reprocessing analysis software (7) is at least 1 cover respectively.
3. accuracy checking method that is applicable to the plate-type ballastless track plate is characterized in that comprising:
Data acquisition step is as follows:
3.1 with track plate or railway plate die surface leveling;
3.2 with the total powerstation frame near railway plate die or track plate center line, about 1.5 meters far away apart from railway plate die or track plate near-end; Connect meteorological sensor, make it to make zero, open update the system constantly, and before observation, import the on-the-spot meteorologic parameter and the prism additive constant of use;
3.3 measurement parameter is set, comprises that railway plate die and track plate template and test point are the line space that arrange in bolt stake/hole, column pitch and prism height;
3.4 reference line location, first A1 bolt stake/hole that the sleeve or the adapter of two dribbling type prisms are placed on the railway plate die and the track plate left side is that capable the 1st row bolt stake/hole of A and H1 bolt stake/hole are on capable the 1st row bolt stake/hole of H, order is observed the prism on A1 number and the H1 bolt stake/hole, the location of finishing reference line;
3.5 gather bolt stake/hole coordinate data, at first the sleeve of dribbling type prism or adapter are placed on A1, A2, A3, the A4 test point is on bolt stake/hole, finish the measurement of these four test points, sleeve or adapter with dribbling type prism moves to B1, B2, B3, B4 test point/bolt stake/hole then, finish the measurement of following four test points, operate the data acquisition in all test points/bolt stake/hole on track slab steel mould and track plate successively and finish and preserve corresponding survey data.
4. a kind of accuracy checking method that is applicable to the plate-type ballastless track plate as claimed in claim 3 is characterized in that:
After obtaining survey data, analysis software (7) treatment step is as follows with handling:
4.1 survey data is imported computer (8) from total powerstation (5);
4.2 the limit difference is provided with;
4.3 the searching best fit plane is done the coplanarity analysis;
4.4 all point coordinates are projected to best fit plane;
4.5 bolt hole transverse and longitudinal linearity is analyzed;
4.6 bolt hole symmetrical analysis;
4.7 generation report file.
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| CN102692185A (en) * | 2012-06-13 | 2012-09-26 | 东南大学 | Rapid detection method for ballastless track boards of high-speed railway |
| CN103017824A (en) * | 2012-11-30 | 2013-04-03 | 中国有色金属长沙勘察设计研究院有限公司 | Monitoring system using measurement robot |
| 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 | 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 |
| CN109084706A (en) * | 2018-06-25 | 2018-12-25 | 天津大学 | Robot measurement athletic ground universe flatness automatic testing method and device |
| CN110031248A (en) * | 2019-05-20 | 2019-07-19 | 西南交通大学 | A kind of track plates automated detection system performance evaluation and running precision assessment method |
| CN110846958A (en) * | 2019-11-26 | 2020-02-28 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102692185A (en) * | 2012-06-13 | 2012-09-26 | 东南大学 | Rapid detection method for ballastless track boards of high-speed railway |
| CN102692185B (en) * | 2012-06-13 | 2015-04-29 | 东南大学 | Rapid detection method for ballastless track boards of high-speed railway |
| CN103017824A (en) * | 2012-11-30 | 2013-04-03 | 中国有色金属长沙勘察设计研究院有限公司 | Monitoring system using measurement robot |
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| 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 | 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 |
| CN109084706A (en) * | 2018-06-25 | 2018-12-25 | 天津大学 | Robot measurement athletic ground universe flatness automatic testing method and device |
| CN110031248A (en) * | 2019-05-20 | 2019-07-19 | 西南交通大学 | A kind of track plates automated detection system performance evaluation and running precision assessment method |
| CN110846958A (en) * | 2019-11-26 | 2020-02-28 | 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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