CN105547243A - Method for laser direct measurement of subgrade settlement - Google Patents
Method for laser direct measurement of subgrade settlement Download PDFInfo
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- CN105547243A CN105547243A CN201510941291.9A CN201510941291A CN105547243A CN 105547243 A CN105547243 A CN 105547243A CN 201510941291 A CN201510941291 A CN 201510941291A CN 105547243 A CN105547243 A CN 105547243A
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- point
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- subgrade settlement
- roadbed
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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)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a method for laser direct measurement of subgrade settlement. The method comprises 1, setting fixed reference position points A and B, wherein the points A and B are located at a vertical scaleplate on the reference plane, and setting a position point C of a subgrade to be detected, wherein the position point C is located at a fixed vertical scaleplate on the subgrade to be detected, 2, respectively measuring coordinate positions of the fixed reference points A and B and a distance AB between the points A and B, 3, respectively measuring a distance AC between the fixed point A and the point C and a distance BC between the fixed point B and the point C, 4, after the subgrade is settled and the point C is moved to a point C', respectively measuring a distance AC' between the fixed point A and the point C' and a distance BC' between the fixed point B and the point C', 5, acquiring coordinates of the point C through the distances AB, AC and BC obtained through the steps 2 and 3 because of three known edges of the triangle ABC, 6, acquiring coordinates of the point C' through the distances AB, AC' and BC' obtained through the steps 2 and 4 because of three known edges of the triangle ABC', and 7, according to the coordinates of the points C and C', acquiring a distance CC' as a subgrade settlement value.
Description
Technical field
The invention belongs to laser measuring technique field, relate to a kind of method utilizing laser remotely measuring subgrade settlement.
Background technology
High-speed railway subgrade settlement monitoring often runs the important component part of commander's work as railway mouth, for ensureing that the normal operation tool of high-speed railway is of great significance.High-speed railway slag-free rail is very strict to roadbed settlement Control, and require that settlement after construction is " zero sedimentation ", therefore subgrade settlement control technology has become the key issue in high-speed railway building technology.
Water tumbler sedimentometer, settlement plate measurement mechanism, Section type settlement instrument, pvc pipe sedimentometer, magnet ring sedimentometer is mainly contained at present for measurement road the Settlement Observation device.But this several mode is all being faced with certain problem in varying degrees, such as, involve great expense, install difficulty, affected by environment large, be vulnerable to destroy, difficult repair and precision high not.
Summary of the invention
The invention provides a kind of method utilizing laser remotely measuring subgrade settlement.The method utilizes advanced laser measuring technique to realize, and structure is simple, and facilitate easy to operate, without the need to CCD, lens or other optical elements, remote measurement is carried out in the sedimentation of the base that namely can satisfy the need.This laser measurement subgrade settlement method can have the advantage of high precision.Do not need other optical elements in the optical path, can avoid producing multiple error.This measuring method is simple to operation, is applicable to reference position and target range to be measured situation far away.
The invention provides a kind of method that laser directly measures subgrade settlement, comprise the steps:
Step 1: the reference position A point that setting is fixing and B point, A and B point is positioned on scale that reference planes are erect; Set roadbed position to be measured C point, C point is positioned on the scale of setting fixing on roadbed to be measured;
Step 2: the coordinate position measuring permanent datum A point and B point respectively, and the distance AB between A, B point;
Step 3: the distance AC and the BC that measure point of fixity A and B to C respectively;
Step 4: after roadbed generation sedimentation, C point moves to C ' point, measures distance AC ' and BC ' that point of fixity A and B to C ' puts respectively;
Step 5: the distance AB, AC and BC that obtain according to step 2 and 3, thus in triangle ABC, three limits are known, can obtain the coordinate position of C point;
Step 6: the distance AB, AC ' and the BC ' that obtain according to step 2 and 4, thus in triangle ABC, three limits are known, can obtain the coordinate position of C point;
Step 7: the coordinate position that C and C ' obtained according to step 5 and step 6 puts, obtains the distance of CC ', i.e. subgrade settlement value,
Wherein, on the scale that the position of A and B point is erect on the reference plane, A point and B point are two selected points on scale, A point and B point position known, its distance is AB; A point and B point place scale are not moved in measuring process; C point is positioned on the scale of setting fixing on roadbed to be measured, and the unknown of C point initial position is to be measured, and when roadbed generation sedimentation, the also corresponding movement of C point, is deposited to C ' point.
In the present invention, only need A and B position on the surveyors' staff of reference position, the position C ' that can obtain roadbed place initial position C to be measured and finally move to, thus obtain subgrade settlement displacement to be measured, i.e. CC '.Only need measure in reference position during test, carry out field survey without the need to arriving at roadbed place to be measured, also without the need to knowing the initial value of roadbed to be measured, remote measurement being carried out to roadbed to be measured and can obtain subgrade settlement result, there is conveniently feature.
Accompanying drawing explanation
For further illustrating technology contents of the present invention, be described in detail as follows below in conjunction with embodiment and accompanying drawing, wherein:
Fig. 1 is the process flow diagram that laser of the present invention directly measures the method for subgrade settlement;
Fig. 2 is the structural representation of subgrade settlement measuring method of the present invention.
Embodiment
Referring to Fig. 1 and combining consults shown in Fig. 2, and the invention provides a kind of method that laser directly measures subgrade settlement, the method is:
The position at setting A point and B point place is fixing reference position, and C point place is roadbed to be measured, and after subgrade settlement, C point moves to C ' point.Measure the subgrade settlement at C point place, namely measure the shift length of C point vertical direction, i.e. CC '.
The scale that the position of A and B point is erect on the reference plane, A point and B point are two selected points on scale, A point and B point position known, its distance is AB.A point and B point are not moved.C point is the scale of setting fixing on roadbed to be measured, and C point initial position is to be measured.When roadbed generation sedimentation, the also corresponding movement of C point, is deposited to C ' point.
Known length AB, can adopt laser range finder to measure length AC ', AC, BC ' and BC.
In triangle △ ABC, three limits are known.Thus the coordinate position of C point can be obtained.
In triangle △ ABC ', three limits are known.Thus the coordinate position of C point can be obtained.
By the coordinate position that C point and C ' are put, and then calculate distance CC ' record, subgrade settlement distance namely to be measured.
Referring to Fig. 1 and combining consults shown in Fig. 2, the invention provides a kind of method that laser directly measures subgrade settlement, comprises the steps:
Step 1: the reference position A point that setting is fixing and B point, A and B point is positioned on scale that reference planes are erect.Set roadbed position to be measured C point, C point is positioned on the scale of setting fixing on roadbed to be measured.
Step 2: the coordinate position measuring permanent datum A point and B point respectively, and the distance AB between A, B;
Step 3: measure fixing A point and B point respectively to the distance AC of C point and BC.
Step 4: after roadbed generation sedimentation, C point moves to C ' point.Measure distance AC ' and BC ' that point of fixity A and B point puts to C ' respectively.
Step 5: the distance AB, AC and BC that obtain according to step 2 and 3, thus in triangle △ ABC, three limits are known.The coordinate position of C point can be obtained.
Step 6: the distance AB, AC ' and the BC ' that obtain according to step 2 and 4, thus in triangle △ ABC, three limits are known.The coordinate position of C point can be obtained.
Step 7: the coordinate position that C and C ' obtained according to step 5 and step 6 puts, obtains the distance of CC ', i.e. subgrade settlement value, measures complete.
Wherein, on the scale that the position of A and B point is erect on the reference plane, A point and B point are two selected points on scale, A point and B point position known, its distance is AB.A point and B point place scale are not moved in measuring process.C point is positioned on the scale of setting fixing on roadbed to be measured, and the unknown of C point initial position is to be measured.When roadbed generation sedimentation, the also corresponding movement of C point, is deposited to C ' point.
Described laser directly measures the method for subgrade settlement, and wherein said A and B point is 2 points not on roadbed, and its height does not change in subgrade settlement process.
Described laser directly measures the method for subgrade settlement, and the external C point of wherein said roadbed to be measured is any point on roadbed or multiple spot, and it highly can change along with subgrade settlement.
Described laser directly measures the method for subgrade settlement, measures A point and B point to the distance to C point, be respectively AC and BC with laser range finder.
Described laser directly measures the method for subgrade settlement, measures the distance that A point and B point put to C ', be respectively AC ' and BC ' with laser range finder.
Described laser directly measures the method for subgrade settlement, measures the coordinate that C point and C ' put.
Described laser directly measures the method for subgrade settlement, and the measure equation of wherein tested point sedimentation is | C-C ' | and=CC '.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. laser directly measures a method for subgrade settlement, comprises the steps:
Step 1: the reference position A point that setting is fixing and B point, A and B point is positioned on scale that reference planes are erect; Set roadbed position to be measured C point, C point is positioned on the scale of setting fixing on roadbed to be measured;
Step 2: the coordinate position measuring permanent datum A point and B point respectively, and the distance AB between A, B point;
Step 3: the distance AC and the BC that measure point of fixity A and B to C respectively;
Step 4: after roadbed generation sedimentation, C point moves to C ' point, measures distance AC ' and BC ' that point of fixity A and B to C ' puts respectively;
Step 5: the distance AB, AC and BC that obtain according to step 2 and 3, thus in triangle ABC, three limits are known, can obtain the coordinate position of C point;
Step 6: the distance AB, AC ' and the BC ' that obtain according to step 2 and 4, thus in triangle ABC, three limits are known, can obtain the coordinate position of C point;
Step 7: the coordinate position that C and C ' obtained according to step 5 and step 6 puts, obtains the distance of CC ', i.e. subgrade settlement value,
Wherein, on the scale that the position of A and B point is erect on the reference plane, A point and B point are two selected points on scale, A point and B point position known, its distance is AB; A point and B point place scale are not moved in measuring process; C point is positioned on the scale of setting fixing on roadbed to be measured, and the unknown of C point initial position is to be measured, and when roadbed generation sedimentation, the also corresponding movement of C point, is deposited to C ' point.
2. laser according to claim 1 directly measures the method for subgrade settlement, and wherein said A and B point is 2 points not on roadbed, and its height does not change in subgrade settlement process.
3. laser according to claim 1 directly measures the method for subgrade settlement, and the external C point of wherein said roadbed to be measured is any point on roadbed or multiple spot, and it highly can change along with subgrade settlement.
4. laser according to claim 1 directly measures the method for subgrade settlement, measures A point and B point to the distance to C point, be respectively AC and BC with laser range finder.
5. laser according to claim 1 directly measures the method for subgrade settlement, measures the distance that A point and B point put to C ', be respectively AC ' and BC ' with laser range finder.
6. laser according to claim 1 directly measures the method for subgrade settlement, measures the coordinate that C and C ' puts.
7. laser according to claim 1 directly measures the method for subgrade settlement, and the computing formula of wherein tested point sedimentation is | C-C ' | and=CC '.
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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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110616602A (en) * | 2019-09-17 | 2019-12-27 | 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 |
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| 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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2015
- 2015-12-16 CN CN201510941291.9A patent/CN105547243B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110616602A (en) * | 2019-09-17 | 2019-12-27 | 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 |
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| CN105547243B (en) | 2018-10-09 |
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