CN105547243B - The method that laser directly measures subgrade settlement - Google Patents
The method that laser directly measures subgrade settlement Download PDFInfo
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- CN105547243B CN105547243B CN201510941291.9A CN201510941291A CN105547243B CN 105547243 B CN105547243 B CN 105547243B CN 201510941291 A CN201510941291 A CN 201510941291A CN 105547243 B CN105547243 B CN 105547243B
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- subgrade settlement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
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- Length Measuring Devices By Optical Means (AREA)
Abstract
A kind of method that laser directly measures subgrade settlement, includes the following steps：Fixed reference position A points and B points are set, A and B points are located on the scale erect in reference planes；C points in roadbed position to be measured are set, C points are located on roadbed to be measured on the scale of fixed setting；The distance between coordinate position and A, B point of permanent datum A points and B points AB is measured respectively；The distance AC and BC of fixed point A and B to C are measured respectively；After roadbed settles, C points are moved to C ＇ points, measure distance AC ＇ and the BC ＇ of fixed point A and B to C ＇ points respectively；Distance AB, AC and the BC obtained according to step 2 and 3, thus in triangle ABC three sides it is known that the coordinate position of C points can be obtained；Distance AB, AC ＇ and the BC ＇ obtained according to step 2 and 4, thus in triangle ABC ＇ three sides it is known that the coordinate position of C ＇ points can be obtained；According to the coordinate position for the C and C ＇ points that step 5 and step 6 obtain, the distance of CC ＇, i.e. subgrade settlement value are obtained.
Description
Technical field
The invention belongs to laser measuring technique fields, are related to a kind of method using laser remotely measuring subgrade settlement.
Background technology
High-speed railway subgrade settlement monitoring often runs the important component of commander's work as railway mouth, high for ensureing
The normal operation of fast railway has a very important significance.High-speed railway slag-free rail is very strict to roadbed settlement Control,
It is " zero sedimentation " to seek settlement after construction, therefore subgrade settlement control technology has become the critical issue in high-speed railway building technology.
Mainly there are cup sedimentometer, sedimentation plate measuring device, section currently used for measurement road the Settlement Observation device
Sedimentometer, pvc pipe sedimentometer, magnet ring sedimentometer.But these types of mode is all faced with certain problem, example to varying degrees
Such as involve great expense, be difficult to install, it is affected by environment it is big, be vulnerable to destruction, difficult repair and precision is not high enough.
Invention content
The present invention provides a kind of method using laser remotely measuring subgrade settlement.This method is to utilize advanced Laser Measuring
Amount technology realize, it is simple in structure, facilitate it is easy to operate, be not necessarily to CCD, lens or other optical elements, you can with the sedimentation to roadbed
Remotely measured.The laser measurement subgrade settlement method can have the advantages that high precision.It is not needed between in the optical path
His optical element can avoid generating multiple errors.The measurement method is simple to operation, is applicable to reference position and object to be measured
Distance farther out the case where.
The present invention provides a kind of method that laser directly measures subgrade settlement, includes the following steps：
Step 1：Fixed reference position A points and B points are set, A and B points are located on the scale erect in reference planes；If
Fixed C points in roadbed position to be measured, C points are located on roadbed to be measured on the scale of fixed setting；
Step 2：The distance between coordinate position and A, B point of permanent datum A points and B points AB is measured respectively；
Step 3：The distance AC and BC of fixed point A and B to C are measured respectively；
Step 4：After roadbed settles, C points are moved to C ＇ points, measure the distance AC ＇ of fixed point A and B to C ＇ points respectively
With BC ＇；
Step 5：Distance AB, AC and the BC obtained according to step 2 and 3, thus in triangle ABC three sides it is known that can
Obtain the coordinate position of C points；
Step 6：Distance AB, AC ＇ and the BC ＇ obtained according to step 2 and 4, thus in triangle ABC ＇ three sides it is known that
The coordinate position of C ＇ points can be obtained；
Step 7：According to the coordinate position for the C and C ＇ points that step 5 and step 6 obtain, the distance of CC ＇ is obtained, i.e. roadbed is heavy
Depreciation,
Wherein, on the scale that the position of A and B points is erect on the reference plane, A points and B points be on scale two it is selected
Point, A points and the point positions B are it is known that its distance is AB；Scale where A points and B points does not move in measurement process；C points are located at
On roadbed to be measured on the scale of fixed setting, C point initial positions are unknown to be measured, and when roadbed settles, C points also accordingly move
It is dynamic, it is deposited to C ＇ points.
In the present invention, it is only necessary to the A on the surveyors' staff of reference position and B location, you can obtain initial bit at roadbed to be measured
The position C ＇ for setting C and being finally displaced into, to obtain subgrade settlement displacement to be measured, i.e. CC ＇.It need to only be surveyed in reference position when test
Amount carries out field survey without arriving at roadbed to be measured, without the initial value for knowing roadbed to be measured, carried out to roadbed to be measured remote
Journey measurement can be obtained subgrade settlement as a result, having the characteristics that convenient and efficient.
Description of the drawings
For the technology contents further illustrated the present invention, with reference to embodiments and attached drawing is described in detail as after, wherein：
Fig. 1 is the flow chart for the method that laser of the present invention directly measures subgrade settlement；
Fig. 2 is the structural schematic diagram of subgrade settlement measurement method of the present invention.
Specific implementation mode
It please refers to Fig.1 and combination is as shown in fig.2, the present invention provides a kind of method that laser directly measures subgrade settlement,
This method is：
The position where A points and B points is set as fixed reference position, is roadbed to be measured, C points after subgrade settlement at C points
It is moved to C ＇ points.The subgrade settlement at C points is measured, that is, measures the shift length of C point vertical directions, i.e. CC ＇.
The scale that the position of A and B points is erect on the reference plane, A points and B points be scale on two selected points, A points and
Known to B points position, distance is AB.A points and B points do not move.C points are the scale of fixed setting on roadbed to be measured, C points
Initial position is to be measured.When roadbed settles, C points also accordingly move, and are deposited to C ＇ points.
Known length AB can be used laser range finder and measure length AC ＇, AC, BC ＇ and BC.
In triangle △ ABC, known to three sides.The coordinate position of C points thus can be obtained.
In triangle △ ABC ＇, known to three sides.The coordinate position of C points thus can be obtained.
By the coordinate position of C points and C ＇ points, and then calculate distance CC ＇ records, i.e., subgrade settlement distance to be measured.
It please refers to Fig.1 and combination is as shown in fig.2, the present invention provides a kind of method that laser directly measures subgrade settlement,
Include the following steps：
Step 1：Fixed reference position A points and B points are set, A and B points are located on the scale erect in reference planes.If
Fixed C points in roadbed position to be measured, C points are located on roadbed to be measured on the scale of fixed setting.
Step 2：The distance between coordinate position and A, B of permanent datum A points and B points AB are measured respectively；
Step 3：The distance AC and BC for fixing A points and B points to C points are measured respectively.
Step 4：After roadbed settles, C points are moved to C ＇ points.Distance of measurement fixed point A and the B point to C ＇ points respectively
AC ＇ and BC ＇.
Step 5：Distance AB, AC and the BC obtained according to step 2 and 3, thus in triangle △ ABC known to three sides.
The coordinate position of C points can be obtained.
Step 6：Distance AB, AC ＇ and the BC ＇ obtained according to step 2 and 4, thus three sides have been in triangle △ ABC ＇
Know.The coordinate position of C ＇ points can be obtained.
Step 7：According to the coordinate position for the C and C ＇ points that step 5 and step 6 obtain, the distance of CC ＇ is obtained, i.e. roadbed is heavy
Depreciation, measurement finish.
Wherein, on the scale that the position of A and B points is erect on the reference plane, A points and B points be on scale two it is selected
Point, A points and the point positions B are it is known that its distance is AB.Scale where A points and B points does not move in measurement process.C points are located at
On roadbed to be measured on the scale of fixed setting, C point initial positions are unknown to be measured.When roadbed settles, C points also accordingly move
It is dynamic, it is deposited to C ＇ points.
The method that the laser directly measures subgrade settlement, wherein A the and B points are 2 points not on roadbed,
Its height does not change during subgrade settlement.
The method that the laser directly measures subgrade settlement, wherein the external C points of roadbed to be measured are on roadbed
Any point or multiple spot, height can change with subgrade settlement.
The method that the laser directly measures subgrade settlement, with laser range finder measure A points and B points to C points distance,
Respectively AC and BC.
The method that the laser directly measures subgrade settlement, with laser range finder measure A points and B points to C ＇ points away from
From respectively AC ＇ and BC ＇.
The method that the laser directly measures subgrade settlement measures the coordinate of C points and C ＇ points.
The method that the laser directly measures subgrade settlement, wherein tested point sedimentation measure equation be：
︱ PC-PC ＇︱=LCC ＇
Wherein, LCC ＇For the distance of CC ＇；PCFor the coordinate position of C points；PC ＇For the coordinate position of C ＇ points.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the present invention
Within the scope of shield.
Claims (6)
1. a kind of method that laser directly measures subgrade settlement, includes the following steps：
Step 1：Fixed reference position A points and B points are set, A and B points are located on the scale erect in reference planes；Setting waits for
Roadbed position C points are surveyed, C points are located on roadbed to be measured on the scale of fixed setting；
Step 2：The distance between coordinate position and A, B point of permanent datum A points and B points AB is measured respectively；
Step 3：The distance AC and BC of fixed point A and B to C are measured respectively；
Step 4：After roadbed settles, C points are moved to C ＇ points, respectively measure fixed point A and B to C ＇ points distance AC ＇ with
BC ＇；
Step 5：Distance AB, AC and the BC obtained according to step 2 and 3, thus in triangle ABC three sides it is known that C can be obtained
The coordinate position of point；
Step 6：Distance AB, AC ＇ and the BC ＇ obtained according to step 2 and 4, thus in triangle ABC ＇ three sides it is known that can obtain
To the coordinate position of C ＇ points；
Step 7：According to the coordinate position for the C and C ＇ points that step 5 and step 6 obtain, the distance of CC ＇, i.e. subgrade settlement value are obtained,
Wherein, on the scale that the position of A and B points is erect on the reference plane, A points and B points are two selected points on scale, A
Point and the point positions B are it is known that its distance is AB；Scale where A points and B points does not move in measurement process；C points are located to be measured
On roadbed on the scale of fixed setting, C point initial positions are unknown to be measured, and when roadbed settles, C points also accordingly move,
It is deposited to C ＇ points.
2. the method that laser according to claim 1 directly measures subgrade settlement, wherein the roads A and B Dian Weibu
2 points on base, height does not change during subgrade settlement.
3. the method that laser according to claim 1 directly measures subgrade settlement, wherein the C points in roadbed position to be measured
For on roadbed any point or multiple spot, height can change with subgrade settlement.
4. the method that laser according to claim 1 directly measures subgrade settlement measures A points and B points with laser range finder
To the distance of C points, respectively AC and BC.
5. the method that laser according to claim 1 directly measures subgrade settlement measures A points and B points with laser range finder
To the distance of C ＇ points, respectively AC ＇ and BC ＇.
6. the calculation formula of the method that laser according to claim 1 directly measures subgrade settlement, wherein tested point sedimentation
For：
︱ PC-PC ＇︱=LCC ＇
Wherein, LCC ＇For the distance of CC ＇；PCFor the coordinate position of C points；PC ＇For the coordinate position of C ＇ points.
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| CN201510941291.9A CN105547243B (en) | 2015-12-16 | 2015-12-16 | The method that laser directly measures subgrade settlement |
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| CN105547243A CN105547243A (en) | 2016-05-04 |
| CN105547243B true CN105547243B (en) | 2018-10-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110186422A (en) * | 2019-05-29 | 2019-08-30 | 中国长江三峡集团有限公司福建分公司 | Offshore fan tower barrel tilt angle and foundation settlement measurement method and terminal |
| CN110616602B (en) * | 2019-09-17 | 2021-09-28 | 西安建筑科技大学 | Sedimentation control device and method for construction of pipe jacking and downward passing existing operation railway |
| CN111926662A (en) * | 2020-02-11 | 2020-11-13 | 北京联睿科科技有限公司 | Online monitoring method and system for pavement settlement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5157840A (en) * | 1988-02-22 | 1992-10-27 | Matti Henttinen | Method of and an equipment for determining the position of a track |
| CN101603816A (en) * | 2008-09-26 | 2009-12-16 | 昆明理工大学 | A kind of dual-beam ground settlement detecting device and detection method |
| CN103090812A (en) * | 2013-01-10 | 2013-05-08 | 北京帝测科技发展有限公司 | System and method for tunnel deformation monitoring |
| CN104631419A (en) * | 2015-01-16 | 2015-05-20 | 绍兴文理学院 | Foundation pit top horizontal displacement monitoring method |
| CN104697495A (en) * | 2015-03-03 | 2015-06-10 | 江西飞尚科技有限公司 | On-line monitoring method for settlement and convergence in building construction and operation periods |
-
2015
- 2015-12-16 CN CN201510941291.9A patent/CN105547243B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5157840A (en) * | 1988-02-22 | 1992-10-27 | Matti Henttinen | Method of and an equipment for determining the position of a track |
| CN101603816A (en) * | 2008-09-26 | 2009-12-16 | 昆明理工大学 | A kind of dual-beam ground settlement detecting device and detection method |
| CN103090812A (en) * | 2013-01-10 | 2013-05-08 | 北京帝测科技发展有限公司 | System and method for tunnel deformation monitoring |
| CN104631419A (en) * | 2015-01-16 | 2015-05-20 | 绍兴文理学院 | Foundation pit top horizontal displacement monitoring method |
| CN104697495A (en) * | 2015-03-03 | 2015-06-10 | 江西飞尚科技有限公司 | On-line monitoring method for settlement and convergence in building construction and operation periods |
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