CN112964191B - Micro-deformation laser collimation measurement method - Google Patents
Micro-deformation laser collimation measurement method Download PDFInfo
- Publication number
- CN112964191B CN112964191B CN202110321854.XA CN202110321854A CN112964191B CN 112964191 B CN112964191 B CN 112964191B CN 202110321854 A CN202110321854 A CN 202110321854A CN 112964191 B CN112964191 B CN 112964191B
- Authority
- CN
- China
- Prior art keywords
- displacement
- monitoring point
- monitoring
- coordinate
- coordinates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to a micro-deformation laser alignment measuring method, which measures corresponding data by using a laser emitting device and a laser receiving target position, measures the displacement coordinates of adjacent monitoring points by taking the initial coordinate of any monitoring point as a monitoring base point, and measures the displacement coordinate of the next monitoring point based on the obtained displacement coordinate of the monitoring point, thereby obtaining the displacement of each monitoring point.
Description
Technical Field
The invention relates to the field of micro-deformation measurement of monitoring points, in particular to a micro-deformation laser collimation measurement method.
Background
The foundation pit monitoring is an important link in foundation pit engineering construction, and means that in the process of foundation pit excavation and underground engineering construction, various observation and analysis works are carried out on the characteristics of the foundation pit, the displacement of a supporting structure and the change of surrounding environment conditions, the monitoring result is fed back in time, the deformation and the development of a stable state which are caused after further construction are predicted, the degree of influence of the construction on the surrounding environment is judged according to the prediction, the design and the construction are guided, and the information construction is realized. At present, the foundation pit measurement is generally carried out by using a total station, and the related national technical standard also allows the adoption of laser collimation measurement for monitoring the deformation of the foundation pit. The traditional and standard laser collimation measuring method has the use scene that a plurality of monitoring points are approximately positioned on a straight line, the points at two ends are reference points, laser emitting equipment such as a laser theodolite is arranged on one reference point, the reference point at the other end is used for orientation, the horizontal direction is fixed, the receiving targets on the monitoring points are sequentially aimed up and down, the coordinates of laser spots on the targets are measured, and the relative displacement and the total displacement of the monitoring points are calculated according to the coordinate variation of the spots on the targets. The method can improve the measurement precision and reduce the personnel cost, and the specific scheme can refer to the patent applied by the company, publication No. CN111457848A, a method and a system for measuring the displacement through the coordinate change between adjacent monitoring points.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a micro-deformation laser alignment measurement method which is mainly used for measuring the special-shaped micro-deformation of a foundation pit, so that the defects in the prior art are overcome.
The purpose of the invention is realized by the following technical scheme:
a micro-deformation laser alignment measurement method comprises the following steps:
step 1): each monitoring point is A in turn in the initial state 1 、A 2 、A 3 、......A n And the total station for the high-precision total station is used for measuring the initial coordinates of each monitoring point in the initial state and expressing the initial coordinates as A i ＝(x i ,y i ),i＝1～n；
Step 2): sequentially calculating the distance D between the monitoring points by using the coordinates of the monitoring points measured in the step 1) 1 、D 2 、D 3 、......D n-1 And the azimuth angle of the coordinate is respectively alpha 1 、α 2 、α 3 、......α n-1 ；
Step 3): defining each monitoring point A after displacement 1 '、A 2 '、A 3 '、......A n ' the linear distance between every two adjacent monitoring points after displacement is measured is D 1 '、D 2 '、D 3 '、......D n-1 '；
Step 4): regularly measuring the displacement of the spot coordinate of each monitoring point compared with the last monitoring point, and sequentially recording the displacement as d 1 、d 2 、d 3 、......d n Then, the variation of the coordinate azimuth after the displacement of each monitoring point is Δ α 1 、Δα 2 、Δα 3 、......Δα n-1 Wherein, in the process,
wherein is a constant
Step 5): calculating D 1 '、D 2 '、D 3 '、......D n-1 ' Angle of inclination Δ α to the X-axis 1 '、Δα 2 '、Δα 3 '、......Δα n-1 ', then there are:
α' n-1 ＝α n-1 +Δα n-1 ；
step 6): taking the initial coordinate of any monitoring point as a monitoring base point, measuring the displacement coordinate of the adjacent monitoring point, and simultaneously measuring the displacement coordinate of the next monitoring point based on the obtained displacement coordinate of the monitoring point, wherein the method comprises the following steps:
monitoring point A n ＝(x n ,y n ) For the base point of monitoring, A n+1 The coordinates of' are:
then there is, A n+2 The coordinates of' are:
step 7): and comparing the coordinates of each monitoring point after displacement with the corresponding initial coordinates to obtain the displacement of each monitoring coordinate.
Furthermore, each monitoring point is provided with a laser emitting device and a laser receiving target position for measuring the initial distance D between the monitoring points 1 、D 2 、D 3 、......D n-1 And the displaced distance D 1 '、D 2 '、D 3 '、......D n-1 ', and the amount of displacement d 1 、d 2 、d 3 、......d n 。
Furthermore, the laser receiving target position is vertical to the plane of the monitoring point, and the horizontal direction of the laser receiving target position is definedThe direction is an x axis, the vertical direction is a y axis, and the measured x axis coordinate is the displacement d of the monitoring point 1 、d 2 、d 3 、......d n And the y-axis coordinate is the settlement of the monitoring point.
Furthermore, the laser receiving target position is made of frosted materials to eliminate or reduce halo of the receiving light spot.
Further, the initial distance DD 1 、D 2 、D 3 、......D n-1 And a displaced space D 1 '、D 2 '、D 3 '、......D n-1 ' is measured by using the ranging function of the laser emitting device.
Further, the coordinates of each monitoring point in the initial state are obtained by measuring with a total station.
Further, the displacement of the monitoring base point is measured by combining the initial coordinates of the previous monitoring point with the formula (1).
The invention has the beneficial effects that: compare with traditional artifical measurement, this scheme utilizes laser emission device and laser to receive the data that the target site surveyed to can solve the displacement volume of each monitoring point.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic view of the displacement state of each monitoring point;
fig. 3 is a schematic diagram of measurement after displacement of each monitoring point.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the following specific examples, but the scope of the present invention is not limited to the following.
Referring to FIG. 1, it is a basic principle of the present invention that the distance and the included angle between two points can be calculated on the premise that the coordinates of the two points are known, and p is assumed in FIG. 1 1 ＝(x 1 ,y 1 )、p 2 ＝(x 2 ,y 2 ) Then, there are:
Referring to fig. 2, a schematic diagram of displacement of a monitoring point in a special-shaped area is shown, and the principle of the measurement method is shown in fig. 3, and the method for micro-deformation laser alignment measurement comprises the following steps:
step 1): each monitoring point is A in turn in the initial state 1 、A 2 、A 3 、......A n And expressing the initial coordinates of each monitoring point in the initial state measured by the total station as A i ＝(x i ,y i ),i＝1～n；
Step 2): sequentially calculating the distance D between the monitoring points by using the coordinates of the monitoring points measured in the step 1) 1 、D 2 、D 3 、......D n-1 And the coordinate azimuth angle is respectively alpha 1 、α 2 、α 3 、......α n-1 ；
Step 3): defining each monitoring point A after displacement 1 '、A 2 '、A 3 '、......A n ' the linear distance between every two adjacent monitoring points after displacement is measured is D 1 '、D 2 '、D 3 '、......D n-1 '；
And step 4): regularly measuring the displacement of each monitoring point compared with the last monitoring point, and sequentially recording the displacement as d 1 、d 2 、d 3 、......d n Then, after the displacement of each monitoring point, the azimuth angle of the coordinate is delta alpha 1 、Δα 2 、Δα 3 、......Δα n-1 Wherein, in the step (A),
wherein is a constant
Step 5): calculating D 1 '、D 2 '、D 3 '、......D n-1 ' Angle of inclination Δ α to the X-axis 1 '、Δα 2 '、Δα 3 '、......Δα n-1 ', then there are:
α' n-1 ＝α n-1 +Δα n-1 ；
step 6): taking the initial coordinate of any monitoring point as a monitoring base point, measuring the displacement coordinate of the adjacent monitoring point, and simultaneously measuring the displacement coordinate of the next monitoring point based on the obtained displacement coordinate of the monitoring point, wherein the method comprises the following steps:
monitoring point A n ＝(x n ,y n ) For the base point of monitoring, A n+1 The coordinates of' are:
then there is A n+2 The coordinates of' are:
step 7): and comparing the coordinates of each monitoring point after displacement with the corresponding initial coordinates to obtain the displacement of each monitoring coordinate.
Furthermore, each monitoring point is provided with a laser emitting device and a laser receiving target position for measuring the initial distance D between the monitoring points 1 、D 2 、D 3 、......D n-1 And the displaced distance D 1 '、D 2 '、D 3 '、......D n-1 ', and the amount of displacement d 1 、d 2 、d 3 、......d n 。
Furthermore, the laser receiving target position is perpendicular to the plane of the monitoring point, the horizontal direction of the laser receiving target position is defined as an x axis, the vertical direction is defined as a y axis, and the measured x axis coordinate is the displacement d of the monitoring point 1 、d 2 、d 3 、......d n And the y-axis coordinate is the settlement of the monitoring point.
Further, the laser receiving target position is made of frosted materials so as to eliminate or reduce the halo of the receiving light spot.
Further, the initial distance DD 1 、D 2 、D 3 、......D n-1 And the displaced space D 1 '、D 2 '、D 3 '、......D n-1 ' is measured by the distance measuring function of the laser emitting device.
Further, the coordinates of each monitoring point in the initial state are obtained by measuring with a total station.
Further, the displacement of the monitoring base point is measured by combining the initial coordinates of the previous monitoring point with the formula (1).
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and is not to be construed as limited to the exclusion of other embodiments, and that various other combinations, modifications, and environments may be used and modifications may be made within the scope of the concepts described herein, either by the above teachings or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A micro-deformation laser alignment measurement method is characterized by comprising the following steps:
step 1): each monitoring point is A in turn in the initial state 1 、A 2 、A 3 、......A n And the initial coordinates of each monitoring point in the initial state measured by the total station are expressed as A i ＝(x i ,y i ),i＝1～n；
Step 2): sequentially calculating the initial distance D between the monitoring points by using the coordinates of the monitoring points measured in the step 1) 1 、D 2 、D 3 、......D n-1 And the azimuth angle of the coordinate is respectively alpha 1 、α 2 、α 3 、......α n-1 ；
And step 3): statorEach monitoring point A after sense shift 1 '、A 2 '、A 3 '、......A n ' the linear distance between every two adjacent monitoring points after the displacement is measured is D in sequence 1 '、D 2 '、D 3 '、......D n-1 '；
Step 4): regularly measuring the displacement of each monitoring point compared with the last monitoring point, and sequentially recording the displacement as d 1 、d 2 、d 3 、......d n Then, the variation of the coordinate azimuth after the displacement of each monitoring point is Δ α 1 、Δα 2 、Δα 3 、......Δα n-1 Wherein, in the step (A),
wherein is a constant
Step 5): calculating D 1 '、D 2 '、D 3 '、......D n-1 ' variation of azimuth angle with coordinate Delta alpha 1 '、Δα 2 '、Δα 3 '、......Δα n-1 ', then there are:
α' n-1 ＝α n-1 +Δα n-1 ；
step 6): taking the initial coordinate of any monitoring point as a monitoring base point, measuring the displacement coordinate of the adjacent monitoring point, and measuring the displacement coordinate of the next monitoring point based on the obtained displacement coordinate of the monitoring point, wherein the method comprises the following steps:
monitoring point A n ＝(x n ,y n ) For monitoring the base point, A n+1 The coordinates of' are:
then there is, A n+2 The coordinates of' are:
step 7): comparing the coordinates of each monitoring point after displacement with the corresponding initial coordinates to obtain the displacement of each monitoring coordinate;
each monitoring point is provided with a laser emitting device and a laser receiving target position for measuring the initial distance D between the monitoring points 1 、D 2 、D 3 、......D n-1 And linear distance D after displacement 1 '、D 2 '、D 3 '、......D n-1 ', and the amount of displacement d 1 、d 2 、d 3 、......d n ；
The laser receiving target position is made of frosted surface materials so as to eliminate or reduce the halo of the receiving light spot.
2. The micro-deformation laser collimation measurement method as claimed in claim 1, wherein the laser receiving target is perpendicular to the plane of the monitoring point, the horizontal direction of the laser receiving target is defined as x axis, the vertical direction is defined as y axis, and the measured x axis coordinate is the displacement d of the monitoring point 1 、d 2 、d 3 、......d n And the y-axis coordinate is the settlement of the monitoring point.
3. A method as claimed in claim 2, wherein the initial distance D is measured by laser alignment 1 、D 2 、D 3 、......D n-1 And the linear distance D after displacement 1 '、D 2 '、D 3 '、......D n-1 ' is measured by using the ranging function of the laser emitting device.
4. The method of claim 3, wherein the coordinates of each monitoring point in the initial state are measured by a total station.
5. The method according to claim 4, wherein the displacement of the base point is measured by combining the initial coordinates of the previous monitoring point with equation (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110321854.XA CN112964191B (en) | 2021-03-25 | 2021-03-25 | Micro-deformation laser collimation measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110321854.XA CN112964191B (en) | 2021-03-25 | 2021-03-25 | Micro-deformation laser collimation measurement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112964191A CN112964191A (en) | 2021-06-15 |
| CN112964191B true CN112964191B (en) | 2022-11-04 |
Family
ID=76278480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110321854.XA Active CN112964191B (en) | 2021-03-25 | 2021-03-25 | Micro-deformation laser collimation measurement method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112964191B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115077478B (en) * | 2022-06-28 | 2024-03-15 | 四川合众精准科技有限公司 | Elevation measurement method and system for continuously tracking lifting of monitoring points |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807415A (en) * | 2015-05-05 | 2015-07-29 | 上海成盈光电科技有限公司 | Tunneling pit automatic deformation detection scanner |
| CN106091967A (en) * | 2016-06-02 | 2016-11-09 | 四川大学 | The optical fiber sensing monitoring technology of concrete gravity dam deformation and system |
| CN108981665A (en) * | 2018-08-13 | 2018-12-11 | 山东大学 | A kind of foundation pit top horizontal displacement monitoring method based on measurement of coordinates |
| CN111457848A (en) * | 2020-05-19 | 2020-07-28 | 四川合众精准科技有限公司 | Method and system for measuring displacement through coordinate change between adjacent monitoring points |
| CN212477846U (en) * | 2020-05-21 | 2021-02-05 | 广州市吉华勘测股份有限公司 | Foundation pit horizontal displacement monitoring device |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048334C (en) * | 1997-04-15 | 2000-01-12 | 沈阳世纪节能有限公司 | Three-D deforming automatic follow monitoring method for arch dam |
| CN1262815C (en) * | 2003-12-10 | 2006-07-05 | 武汉理工大学 | Collimation measuring device |
| CN100405009C (en) * | 2004-12-29 | 2008-07-23 | 西安华腾光电有限责任公司 | Symmetrical closed laser arch dam deformation monitoring method |
| EP2027966B1 (en) * | 2007-08-20 | 2010-04-21 | Soonhan Engineering Corp. | Sample traveling stage with flexure mechanism module to absorb the deformation of the slide |
| CN101344383A (en) * | 2008-09-01 | 2009-01-14 | 扬州大学 | Laser amplifying measurement method for bending structure deformation |
| JP2014020978A (en) * | 2012-07-20 | 2014-02-03 | Fujitsu Ltd | Irradiation device, ranging device, and calibration program and calibration method of irradiation device |
| JP5991489B2 (en) * | 2013-02-21 | 2016-09-14 | 株式会社パスコ | Road deformation detection device, road deformation detection method and program |
| CN203744915U (en) * | 2013-07-29 | 2014-07-30 | 王晓翔 | System for monitoring dam body |
| CN103499336A (en) * | 2013-09-23 | 2014-01-08 | 国家电网公司 | Automatic three-dimensional displacement monitoring method for arch dam deformation |
| CN204007521U (en) * | 2014-09-05 | 2014-12-10 | 济南大学 | Reservoir dam depression and horizontal displacement monitoring device |
| CN105890537B (en) * | 2016-06-29 | 2019-08-09 | 四川大学 | The technical solution and system of the distributing optical fiber sensing of induced joint deformation monitoring |
| CN107014304B (en) * | 2017-04-17 | 2019-05-21 | 西安交通大学 | A kind of high-precision arch dam deformation monitoring equipment and measurement method |
| CN110130413A (en) * | 2019-05-09 | 2019-08-16 | 四川合众精准科技有限公司 | Pit retaining monitoring method based on underground datum mark arrangement |
| CN110470237A (en) * | 2019-08-23 | 2019-11-19 | 黑龙江科技大学 | Deformable shaft monitoring method based on 3 D laser scanning |
| US10837795B1 (en) * | 2019-09-16 | 2020-11-17 | Tusimple, Inc. | Vehicle camera calibration system |
| CN110849338B (en) * | 2019-12-05 | 2022-05-17 | 散裂中子源科学中心 | Control network measuring method |
| CN111623719B (en) * | 2020-05-11 | 2022-06-24 | 同济大学 | Laser net monitoring system and monitoring method for monitoring deformation and settlement of building |
| CN112523273A (en) * | 2020-11-12 | 2021-03-19 | 广东省建设工程质量安全检测总站有限公司 | Supplement analysis method for horizontal displacement monitoring data of foundation pit crown beam |
-
2021
- 2021-03-25 CN CN202110321854.XA patent/CN112964191B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807415A (en) * | 2015-05-05 | 2015-07-29 | 上海成盈光电科技有限公司 | Tunneling pit automatic deformation detection scanner |
| CN106091967A (en) * | 2016-06-02 | 2016-11-09 | 四川大学 | The optical fiber sensing monitoring technology of concrete gravity dam deformation and system |
| CN108981665A (en) * | 2018-08-13 | 2018-12-11 | 山东大学 | A kind of foundation pit top horizontal displacement monitoring method based on measurement of coordinates |
| CN111457848A (en) * | 2020-05-19 | 2020-07-28 | 四川合众精准科技有限公司 | Method and system for measuring displacement through coordinate change between adjacent monitoring points |
| CN212477846U (en) * | 2020-05-21 | 2021-02-05 | 广州市吉华勘测股份有限公司 | Foundation pit horizontal displacement monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112964191A (en) | 2021-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107782240B (en) | Two-dimensional laser scanner calibration method, system and device | |
| CN108981754B (en) | Method for zero alignment of mounting angles of photoelectric platform and carrier | |
| CN103292748A (en) | Multi-substrate combining detection method based on laser measurement | |
| CN103454619A (en) | Electrical axis optical calibration system of spaceborne microwave tracking-pointing radar and calibration method thereof | |
| CN101539397B (en) | Method for measuring three-dimensional attitude of object on precision-optical basis | |
| CN104897061A (en) | Total station and three-dimensional laser scanning combined large-scale maritime work equipment measuring method | |
| CN202372164U (en) | Photoelectric load multi-optical-axis space angle precision calibrating device | |
| CN111457848B (en) | Method and system for measuring displacement through coordinate change between adjacent monitoring points | |
| CN105737751A (en) | Vertical storage tank deformation monitoring system and method | |
| CN106772915A (en) | A kind of installation method of satellite benchmark prism | |
| CN112964191B (en) | Micro-deformation laser collimation measurement method | |
| CN104408320A (en) | Method for determining center deviation of circular cylinder building structure by plane coordinate method | |
| CN103196417A (en) | Method for directionally measuring vertical well by double-connection triangle | |
| CN104535078A (en) | Measuring method for flying object through photoelectric equipment based on marking points | |
| CN105627916A (en) | Method for building tracker geographic coordinate system and measuring six degrees of freedom | |
| CN206540548U (en) | The total powerstation of function is measured with instrument high precision | |
| CN105785069A (en) | Wind measuring device with direction indication | |
| CN110068282B (en) | Method for detecting deformation of main beam of hoisting machine based on photogrammetry | |
| CN108896015B (en) | Double-laser collimation measuring method for tunnel structural surface attitude | |
| CN108020215B (en) | Total station and using method thereof | |
| CN115638725A (en) | Target point position measuring method based on automatic measuring system | |
| El-Ashmawy | Developing and testing a method for deformations measurements of structures | |
| Kamugasa et al. | Development and validation of a multilateration test bench for particle accelerator pre-alignment | |
| CN1293347A (en) | Automatic displace monitor system with submillimeter-class precision | |
| CN206073938U (en) | A kind of elongated tubular linearity measurer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |