CN106643653B - A kind of ground deep lateral deformation measurement method - Google Patents
A kind of ground deep lateral deformation measurement method Download PDFInfo
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- CN106643653B CN106643653B CN201611128036.3A CN201611128036A CN106643653B CN 106643653 B CN106643653 B CN 106643653B CN 201611128036 A CN201611128036 A CN 201611128036A CN 106643653 B CN106643653 B CN 106643653B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of ground deep lateral deformation measurement methods, belong to deformation of geotechnical engineering detection field.It will be set in advance in different frequency and the buried ground of the reliable impulse generator of small volume, hard first, and same longitudinally perpendicular embedding number be determined according to measurement ground depth, and record corresponding coordinate point and path.When the displacement of ground deep generation need to be measured, three impulse waves recipient A, B, C are disposed about burying point known to ground, record its coordinate points.According to GPS positioning system principle, the time of impulse wave recipient acquisition signal wave is distance between two points multiplied by speed, and the coordinate points of impulse wave recipient are it is known that can establish the displacement coordinate point (x, y, z) that three equation groups solve each transmitter.It is then the lateral displacement in ground deep to obtain the global displacement route of pulse wave generator, can effectively solve deviational survey pipe clamp pipe, guide groove torsion in the prior art causes measurement to be made mistakes, and measures inaccurate problem.
Description
Technical field
The present invention relates to a kind of ground deep lateral deformation measurement methods, can effectively measure foundation deep and laterally become
Shape, ground deep lateral deformation etc., the more existing battering methods by inclinometer pipe subsidiary are easy to operate, and measurement is more accurate,
Belong to deformation of geotechnical engineering detection field.
Background technique
Existing most commonly used ground deep deformation detection technique is then the slidingtype for needing inclinometer pipe subsidiary at home
Inclinometer or stationary slope level, and inclinometer pipe often it is possible that card pipe cause measurement fail, inclinometer pipe guide groove torsion lead
The phenomenon that causing measurement fault needs to take many and diverse correction, satisfactory after correcting, calculates complicated.Therefore, there is high-tech using one kind
Cutting edge technology system detection ground deep deformation it is necessary, be allowed to improve measurement efficiency and precision, generate important reality
Meaning and value.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of ground deep lateral deformation measurement methods, which can
To measure foundation, side slope, foundation pit, dam and the lateral deformation of ground deep well.
The technical solution adopted by the present invention is that: a kind of ground deep lateral deformation measurement method includes the following steps:
Step 1, several are set into the pulse wave generator of frequency along same longitudinally perpendicular arrangement, buried in ground
In, record the burial place coordinate of each pulse wave generator；
Step 2, on the ground of each pulse wave generator, corresponding embedded point is marked；
Step 3, when measuring ground deep displacement, three are disposed near the corresponding embedded point in the ground of each pulse wave generator
A impulse wave recipient A, B, C are allowed into arbitrary triangle, and determine their coordinate points；
Step 4, according to GPS positioning system principle, it is known that impulse wave recipient detects the time of signal wave multiplied by its speed
Degree is distance between two points, it is known that some displacement path corresponding with apart from can then find out a pulse wave generator, in turn
Obtain the displacement path of each pulse wave generator；
Step 5, the displacement path for depicting all impulse generators is the lateral displacement in ground deep.
Preferably, the spacing in the step 1 between adjacent pulse wave producer is 0.5~1.0m.
Preferably, it is made marks in the step 2 using stainless steel settling observing point mark.
Preferably, three impulse wave recipient A, B, C are arranged along maximum possible direction of displacement in the step 3, three
A impulse wave recipient A, B, C is away from 2.0~3.0m of mark point.
Preferably, described three impulse wave recipients A, B, C are distributed in isosceles triangle or right angled triangle is distributed.
Beneficial effects of the present invention: either in terms of implementing process or in terms of detection accuracy, existing needs are superior to
The battering methods scheme of inclinometer pipe subsidiary, easy to operate with reliable and stable, strong interference immunity, precision is high, can not
The advantages that being influenced by weather, being suitable for various field environments, can effectively reach ground deep deformation measurement purpose.
Detailed description of the invention
Fig. 1 is that pulse wave generator of the present invention buries sectional schematic diagram；
Fig. 2 is pulse wave generator of the present invention and receiver position plane schematic diagram；
Fig. 3 is the schematic diagram that the present invention is applied in the dam foundation；
Fig. 4 is the schematic diagram that the present invention is applied in pile foundation.
It is annotated in figure: the first pulse wave generator of 1-, the second pulse wave generator of 2-, 3- third pulse wave generator, 4-
4th pulse wave generator, the 5th pulse wave generator of 5-, the first pulse wave generator after 1'- displacement, the after 2'- displacement
Two pulse wave generators, the third pulse wave generator after 3'- displacement, the 4th pulse wave generator after 4'- displacement, 5'-position
The 5th pulse wave generator after shifting, 6-Rock And Soils, 7-concrete.
Specific embodiment
It will further elaborate to specific embodiment of the present invention with reference to the accompanying drawing, but protection model of the invention
It encloses and is not limited to the content.
Embodiment 1: as shown in Figs 1-4, a kind of ground deep lateral deformation measurement method includes the following steps:
Step 1, several are set into the pulse wave generator of frequency along same longitudinally perpendicular arrangement, buried in ground
In, embedding number is made by oneself according to actual conditions and fathoming, and records the burial place coordinate of each pulse wave generator；
Step 2, on the ground of each pulse wave generator, corresponding embedded point is marked, and carries out the corresponding embedded label in ground
Point, it is therefore an objective to make reference point when just measuring in the future；
Step 3, when measuring ground deep displacement in the future, near the corresponding embedded point in the ground of each pulse wave generator
Three impulse waves recipient A, B, C are disposed, arbitrary triangle is allowed into, and determine their coordinate points；
Step 4, according to GPS positioning system principle, it is known that impulse wave recipient detects the time of signal wave multiplied by its speed
Degree is distance between two points, it is known that some displacement path corresponding with apart from can then find out a pulse wave generator, in turn
Obtain the displacement path of each pulse wave generator；
Step 5, the displacement path for depicting all impulse generators is the lateral displacement in ground deep, whole measurement system
Data record during system, need to be using the network table drawing paper of profession, convenient for accurately, clearly recording and reading letter
Breath.
The ground deep lateral deformation measurement method, pulse wave generator have small volume, hard reliable, transmitting letter
Number convenient for detection, and the anti-interference characteristics such as stronger.In order to more guarantee its performance normal operation, not by accidental damage, embedding
When can take certain safeguard measure, as long as not interfering final detection.As for embedding spacing and number, according to practical feelings
Condition and fathoming is made by oneself with measurement request, and spacing should not be too large, and otherwise cause displacement measurement more rough, the depth of burying is too deep；
Spacing also should not be too small, although displacement can be more accurate, calculation amount can be very big, it is overstocked friction is generated when being displaced each other may also can
Final detection quality is influenced, therefore 0.5~1.0m is preferable.
Further, it is made marks in the step 2 using stainless steel settling observing point mark, it is fuzzy or not to prevent marking
See or shifts, it can also be according to the selection material of live adaptation to local conditions, as long as not influencing finally to measure.
Further, three impulse wave recipient A, B, C are arranged along maximum possible direction of displacement in the step 3,
Three impulse wave recipient A, B, C measure, record their coordinate points away from 2.0~3.0m of mark point, can repeatedly be examined
It surveys, takes optimal.
Further, described three impulse wave recipients A, B, C are distributed in isosceles triangle or right angled triangle is distributed.
The present invention mainly uses pulse wave generator, impulse wave recipient, and pulse wave generator is as determinand, transmitting letter
Number wave is detected by impulse wave recipient, forms the information transfer system, and according to GPS positioning system principle, is determined entire to be measured
The displacement of object, the as lateral displacement of ground deep.Lateral deformation measurement method in ground deep of the invention is suitable for pile body and surveys
Tiltedly, the ground deep lateral deformation such as slope retaining sliding monitoring.
The solution of the present invention is exemplified below:
Example 1: when carrying out deep lateral deformation measurement to the dam foundation, first the first pulse wave generator 1, the second impulse wave are occurred
Device 2, third pulse wave generator 3, the 4th pulse wave generator 4, the 5th pulse wave generator 5 set different signal wave frequencies
Rate, same longitudinally perpendicular buried in order, adjacent spacing is 0.5m, and every placement one carries out safeguard measure and in grid paper
The upper embedded point coordinate of record, saves embedded path.After pulse wave generator is buried well, on ground, corresponding embedded point is used professional fixed
The stainless steel deformation observation point mark of system performs label.When ground lateral deformation to be measured is displaced, burying originally, index point is attached
Nearly set pulse wave receiver A, B, C select lateral displacement maximum possible direction to be arranged to isosceles triangle according to previous experiences,
From embedded spacing 2.5m of instrument records good respective coordinate points A (X1,Y1,Z1)、B(X2,Y2,Z2)、C(X3,Y3,Z3), and will
Every recipient detects that the time of each generator pulse wave signal corresponds record.Finally, calculating and drawing.According to arteries and veins
The time for rushing wave recipient A, B, C acquisition signal wave obtains distance d accordingly multiplied by its speed11、d12、d13, and then by with lower section
The coordinate points that journey group form similarly acquires after the displacement of the first pulse wave generator 1 are denoted as 1'(x1,y1,z1), the second impulse wave occurs
Coordinate points after device 2 is displaced are denoted as 2'(x2,y2,z2), the coordinate points after third pulse wave generator 3 is displaced are denoted as 3'(x3,y3,
z3), the coordinate points after the displacement of the 4th pulse wave generator 4 are denoted as 4'(x4,y4,z4), after the displacement of the 5th pulse wave generator 5
Coordinate points are denoted as 5'(x5,y5,z5):
It calculates final result to also be reflected in grid paper, it is dam foundation ground that path is biased in the displacement that they are showed
The displacement of deep lateral deformation.
Example 2: carrying out deviational survey measurement to pile foundation, first by set in advance different frequency the first pulse wave generator 1, the
Two pulse wave generators 2, third pulse wave generator 3, the 4th pulse wave generator 4, the 5th pulse wave generator 5, binding exist
On steel reinforcement cage, adjacent spacing 1.0m records respective coordinates point on grid paper, and takes certain safeguard procedures, with steel reinforcement cage depth
It buries.After the completion of pile foundation construction, ground is marked a little, when deviational survey detects in the future, set pulse wave receiver A, B, C in its vicinity
As detector, orientation is arranged to right angle trigonometry form, away from mark point 2.0m, and records good respective coordinate points.According to detection
Time to signal wave obtains each pulse wave generator displacement point from detector distance d multiplied by its speed.In this way, known
A little and the distance between two points, establish three unknown number equation groups, can acquire the first pulse wave generator 1 be displaced after coordinate
Point is denoted as 1'(x1,y1,z1), the coordinate points after the displacement of the second pulse wave generator 2 are denoted as 2'(x2,y2,z2), third impulse wave hair
Coordinate points after raw device 3 is displaced are denoted as 3'(x3,y3,z3), the coordinate points after the displacement of the 4th pulse wave generator 4 are denoted as 4'(x4,
y4,z4), the coordinate points after the displacement of the 5th pulse wave generator 5 are denoted as 5'(x5,y5,z5).Finally it is plotted on grid paper,
Make reference initially to bury path, it is the lateral position of pile foundation that the displacement path that whole pulse wave generator shows, which is biased to,
Shift one's love condition, peak excursion or displacement S can be observed, detector arrangement orientation pattern also can be changed and carry out repeated detection, take optimal.
Claims (6)
1. a kind of ground deep lateral deformation measurement method, characterized by the following steps:
Step 1, several are set into the pulse wave generator of frequency along same longitudinally perpendicular arrangement, buried in ground, note
Record the burial place coordinate of each pulse wave generator；
Step 2, on the ground of each pulse wave generator, corresponding embedded point is marked；
Step 3, when measuring ground deep displacement, three arteries and veins are disposed near the corresponding embedded point in the ground of each pulse wave generator
Wave recipient A, B, C are rushed, arbitrary triangle is allowed into, and determines their coordinate points；
Step 4, according to GPS positioning system principle, it is known that impulse wave recipient detects time of signal wave multiplied by its speed i.e.
For distance between two points, it is known that 3 points of displacement paths corresponding with apart from can then find out a pulse wave generator, and then obtain
The displacement path of each pulse wave generator；
Step 5, the displacement path for depicting all impulse generators is the lateral displacement in ground deep.
2. lateral deformation measurement method in ground deep according to claim 1, it is characterised in that: phase in the step 1
Spacing between adjacent pulse wave generator is 0.5~1.0m.
3. lateral deformation measurement method in ground deep according to claim 1, it is characterised in that: adopted in the step 2
It is made marks with stainless steel settling observing point mark.
4. lateral deformation measurement method in ground deep according to claim 1, it is characterised in that: three in the step 3
A impulse wave recipient A, B, C arranges that three impulse wave recipient A, B, C are away from mark point 2.0 along maximum possible direction of displacement
~3.0m.
5. lateral deformation measurement method in ground deep according to claim 1, it is characterised in that: three impulse waves
Recipient A, B, C are distributed in isosceles triangle.
6. lateral deformation measurement method in ground deep according to claim 1, it is characterised in that: three impulse waves
The rectangular Triangle-Profile of recipient A, B, C.
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| CN109115145B (en) * | 2018-05-25 | 2019-08-20 | 中国地质大学（武汉） | A kind of embedded landslide depth large deformation monitoring device and method |
| CN112344909B (en) * | 2020-11-06 | 2022-04-26 | 国核信息科技有限公司 | Method and device for monitoring inclination of fan tower |
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| CN101476337A (en) * | 2009-01-15 | 2009-07-08 | 北京交通大学 | Automatic monitoring apparatus and method for layered vertical sedimentation and lateral displacement of roadbed |
| CN102354434A (en) * | 2011-11-01 | 2012-02-15 | 贵州大学 | Wireless intelligent monitoring and early-warning method and device for slope geological hazard based on acoustic emission |
| CN102889876A (en) * | 2012-10-16 | 2013-01-23 | 杭州国量科技有限公司 | Method and device for measuring underground deformation in real time |
| CN103576122A (en) * | 2013-11-04 | 2014-02-12 | 中国科学院光电研究院 | Rescue locating method based on burst distress signal |
| CN104854480A (en) * | 2012-12-31 | 2015-08-19 | 哈里伯顿能源服务公司 | Apparatus and methods to find a position in an underground formation |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476337A (en) * | 2009-01-15 | 2009-07-08 | 北京交通大学 | Automatic monitoring apparatus and method for layered vertical sedimentation and lateral displacement of roadbed |
| CN102354434A (en) * | 2011-11-01 | 2012-02-15 | 贵州大学 | Wireless intelligent monitoring and early-warning method and device for slope geological hazard based on acoustic emission |
| CN102889876A (en) * | 2012-10-16 | 2013-01-23 | 杭州国量科技有限公司 | Method and device for measuring underground deformation in real time |
| CN104854480A (en) * | 2012-12-31 | 2015-08-19 | 哈里伯顿能源服务公司 | Apparatus and methods to find a position in an underground formation |
| CN103576122A (en) * | 2013-11-04 | 2014-02-12 | 中国科学院光电研究院 | Rescue locating method based on burst distress signal |
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