CN106092019B - Subway foundation pit system for monitoring displacement - Google Patents
Subway foundation pit system for monitoring displacement Download PDFInfo
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- CN106092019B CN106092019B CN201610629718.6A CN201610629718A CN106092019B CN 106092019 B CN106092019 B CN 106092019B CN 201610629718 A CN201610629718 A CN 201610629718A CN 106092019 B CN106092019 B CN 106092019B
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
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- General Physics & Mathematics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The present invention provides a kind of subway foundation pit system for monitoring displacement comprising, foundation pit side-wall stress detection device is used to detect the stress value of multiple candidate monitoring points of pre-selection；Database prestores the threedimensional model of foundation pit to be monitored；From the smallest candidate monitoring point of the selection stress value on the threedimensional model, and 2-6 meters of one monitoring points of determination are spaced on the horizontal line where the candidate monitoring point；The inside of the foundation pit to be monitored is arranged in measurement column；The measurement column is towards being respectively set a range sensor and an inclinometer on the side wall of the foundation pit to be monitored.This system determines the monitoring point for displacement of foundation pit to be monitored by detecting the stress value of foundation pit side-wall to be monitored, then detects the situation of change of the distance between each monitoring point and measurement column and angle, realizes the purpose of monitoring subway foundation pit displacement.
Description
Technical field
The invention belongs to subway foundation pit field, in particular to a kind of subway foundation pit system for monitoring displacement.
Background technique
City underground is the hot spot of China's infrastructure investment in recent years, greatly develop city underground have become it is big-and-middle
The emphasis of type urban municipal construction.And China's subway is most of all buried in more than ten 20 meters of underground, even more deeply, it is ensured that construction
Safety is essential.Statistical analysis discovery, any foundation pit accident together bar none with to monitor ineffective or critical forecast inaccurate
Truly have pass.So the safety and stability state of foundation pit determines that can entire engineering construction smoothly complete, the relevant every position of foundation pit
It moves monitoring and even more occupies very important position in subway work.
Pit displacement monitoring includes horizontal displacement monitoring, vertical displacement monitoring, deeply mixing cement-soil pile monitoring, inclination monitoring etc.
Deng.It is the displacement component of the building enclosure as caused by excavation of foundation pit or the monitoring point in surrounding enviroment along a direction.By
The precision of data and the frequency of monitoring are often required that in pit retaining monitoring it is higher, and due to construction site excavate site condition and
The limitation of adverse circumstances, monitoring process need to spend, and have the case where monitoring data error often, therefore use is more first
Into monitoring technology be highly desirable.
Summary of the invention
It is an object of the invention to solve at least the above problems or defect, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of subway foundation pit system for monitoring displacement, this system is answered using foundation pit side-wall
Force checking device detects the stress value of each side wall of subway foundation pit, and selection is more on the horizontal line where the small site of stress value
The coordinate of each monitoring point is responsively marked in the XY reference axis centered on distance measuring sensor, passes through ratio by a monitoring point
The horizontal displacement value and vertical displacement value of the monitoring point are obtained to the coordinate site of each monitoring point different time.This system is chosen
The small site of stress value is as monitoring point, can be most accurate by monitoring the horizontal displacement value and vertical displacement value of monitoring point
The misalignment of ground detection subway foundation pit.
In order to realize these purposes and other advantages according to the present invention, a kind of subway foundation pit system for monitoring displacement is provided,
Including
Foundation pit side-wall stress detection device is used to detect the stress value of multiple candidate monitoring points of pre-selection, and will be each
The stress value of the candidate monitoring point is uploaded in the database；
Database prestores the threedimensional model of foundation pit to be monitored；It receives described stress value to the database, and by institute
Stress value is stated to mark in the threedimensional model according to the location information of the candidate monitoring point corresponding to it；Meanwhile from institute
State the smallest candidate monitoring point of selection stress value on threedimensional model, and on the horizontal line where the candidate monitoring point between
Every a 2-6 meters of determining monitoring points；
The inside of the foundation pit to be monitored is arranged in measurement column；The measurement column is towards the side of the foundation pit to be monitored
A range sensor and an inclinometer are respectively set on wall；The range sensor is passed for detecting the measurement column to the distance
The prison on the first distance value of the side wall of sensor institute direction and the measurement column and the side wall of the range sensor institute direction
The second distance value of measuring point, and the first distance value and the second distance value are uploaded in the database；The angle
Where degree instrument is used to measure the projection of the monitoring point to the measurement column when plane, the vertical direction of the detection column with it is described
The angle value of projection and inclinometer line, and the angle value is uploaded in the database；
Wherein, the database receives the first distance value, the second distance value and the angle value, and will be described
First distance value, the second distance value and the angle value are stored according to the corresponding relationship of the monitoring point.
Multiple candidate monitoring points are equidistantly determined on the vertical direction of the side wall of subway foundation pit to be monitored in advance, utilize base
Hole side wall stress detection device detects the stress value of each candidate monitoring point, horizontal where the smallest candidate monitoring point of stress value
Multiple monitoring points are determined on line, are then become using the position that range sensor, the inclinometer on measurement column monitor each monitoring point
Change.This system chooses the small site of stress value as monitoring point, the change in displacement situation of subway foundation pit is found in first time, really
Protect deep pit monitor.
Preferably, in the subway foundation pit system for monitoring displacement, the distance is also marked on the threedimensional model and is passed
Sensor is in the projection site of the side wall of the foundation pit to be monitored of its direction；
And it is with the projection site on the image of every one side side wall to be monitored for connecing hole on the threedimensional model
XY coordinate system is established at center.
It preferably, further include a computing module in the subway foundation pit system for monitoring displacement, the computing module is used
In the positional value for calculating the monitoring point；The specific operation process of the computing module are as follows:
The computing module is by the range sensor, the range sensor described in the projection and one on the side wall
Monitoring point constructs right angled triangle, and the computing module transfers described the first of a monitoring point from the database
Distance value and the second distance value, and the monitoring point and the range sensor are obtained in the side wall using Pythagorean theorem
On projection third distance value；
The computing module determines the monitoring point in the XY coordinate system according to the third distance value and the angle
Coordinate information, and the location information is labeled on the threedimensional model according to the corresponding relationship of the monitoring point.
The projection of range sensor and range sensor on side wall perpendicular to the side wall, therefore, range sensor and distance
Projection of the sensor on side wall constitutes a right angled triangle, it is known that a right-angle side first distance value of the right angled triangle and
The second distance value of bevel edge, computing module obtain project to monitoring point of the range sensor on side wall using Pythagorean theorem
Three distance values can be position marking the monitoring point in XY coordinate system using third distance value and angle value.
Preferably, in the subway foundation pit system for monitoring displacement, the range sensor and the inclinometer interval
Predetermined time detects the first distance value, the second distance value and the angle value, and by the first distance value, described
Second distance value and the angle value are uploaded to the database；
The database receives the first distance value, the second distance value and the angle value, and by described first
Distance value, the second distance value and the angle value store sequentially in time.
This system interval predetermined time detects first distance value, second distance value and the angle value of monitoring point, computing module
It can determine the location information of monitoring point in different time points, and using the location information using different time points in XY coordinate
The situation of movement of the position of test point is drawn by system, can grasp the displacement law of monitoring point.
Preferably, in the subway foundation pit system for monitoring displacement, the computing module is transferred from the database
t1、t2……tnCoordinate information (x of the monitoring point described in time in the XY coordinate system1, y1)、(x2, y2)……(xn, yn), it goes forward side by side
Row is following to be calculated:
The monitoring point is in tnTime is relative to t1The horizontal displacement △ x of time are as follows: △ x=xn—x1；
The monitoring point is in tnTime is relative to t1The vertical displacement △ y of time are as follows: △ y=yn—y1；
The horizontal displacement △ x and the vertical displacement △ y are uploaded in database by the computing module.
Preferably, in the subway foundation pit system for monitoring displacement, the predetermined time is 7 days.
Predetermined time can consider setting, geological condition, soil property situation or the ground built according to subway foundation pit to be monitored
Concrete condition in iron-based hole process of construction will be set as 7 days, 14 days or one month the predetermined time.
It preferably, further include a monitoring module in the subway foundation pit system for monitoring displacement；
A horizontal displacement threshold value and a vertical displacement threshold value are preset in the monitoring module；
The monitoring module transfers the horizontal displacement △ x and the vertical displacement △ y from the database, as △ x
It is greater than the vertical displacement threshold value greater than the horizontal displacement threshold value or △ y, then the monitoring module carries out early warning prompting.
When the horizontal displacement value of monitoring point or vertical displacement value are more than horizontal displacement threshold value or vertical displacement threshold value, monitoring
Module sends the short message or mail of early warning to the safety director person of subway foundation pit, to remind safety director person to pay close attention in time
Monitoring point uses precautionary measures when necessary.
Beneficial effects of the present invention are as follows:
1, in the subway foundation pit system for monitoring displacement, this system is according to outside the resistance on subway foundation pit side wall to be monitored
The stress value of power determines monitoring point, chooses the smallest point of side wall upper stress value as monitoring point, the monitoring point is to change in displacement
It is the most obvious, by the displacement monitoring to monitoring point, the misalignment of foundation pit to be monitored can be grasped at the first time, effectively prevented
The generation of peril.
2, in the subway foundation pit system for monitoring displacement, this system setting is equipped with range sensor and inclinometer, and
Centered on projection of the range sensor on side wall, determine an XY coordinate system on the side wall, and according to range sensor and
The detection of inclinometer marks monitoring point on XY coordinate system, and this system is according to same monitoring point different time on XY coordinate system
Different loci, while obtaining horizontal displacement and the vertical displacement of monitoring point.
Specific embodiment
The present invention is described in further detail below, to enable those skilled in the art's refer to the instruction text being capable of evidence
To implement.
The invention discloses a kind of subway foundation pit system for monitoring displacement, which is included at least:
Foundation pit side-wall stress detection device is used to detect the stress value of multiple candidate monitoring points of pre-selection, and will be each
The stress value of the candidate monitoring point is uploaded in the database；
Database prestores the threedimensional model of foundation pit to be monitored；It receives described stress value to the database, and by institute
Stress value is stated to mark in the threedimensional model according to the location information of the candidate monitoring point corresponding to it；Meanwhile from institute
State the smallest candidate monitoring point of selection stress value on threedimensional model, and on the horizontal line where the candidate monitoring point between
Every a 2-6 meters of determining monitoring points；
The inside of the foundation pit to be monitored is arranged in measurement column；The measurement column is towards the side of the foundation pit to be monitored
A range sensor and an inclinometer are respectively set on wall；The range sensor is passed for detecting the measurement column to the distance
The prison on the first distance value of the side wall of sensor institute direction and the measurement column and the side wall of the range sensor institute direction
The second distance value of measuring point, and the first distance value and the second distance value are uploaded in the database；The angle
Where degree instrument is used to measure the projection of the monitoring point to the measurement column when plane, the vertical direction of the detection column with it is described
The angle value of projection and inclinometer line, and the angle value is uploaded in the database；
Wherein, the database receives the first distance value, the second distance value and the angle value, and will be described
First distance value, the second distance value and the angle value are stored according to the corresponding relationship of the monitoring point.
The range sensor is also marked in above scheme, on the threedimensional model in the base to be monitored of its direction
The projection site of the side wall in hole；
And it is with the projection site on the image of every one side side wall to be monitored for connecing hole on the threedimensional model
XY coordinate system is established at center.
In above scheme, the subway foundation pit system for monitoring displacement further includes a computing module, and the computing module is used
In the positional value for calculating the monitoring point；The specific operation process of the computing module are as follows:
The computing module is by the range sensor, the range sensor described in the projection and one on the side wall
Monitoring point constructs right angled triangle, and the computing module transfers described the first of a monitoring point from the database
Distance value and the second distance value, and the monitoring point and the range sensor are obtained in the side wall using Pythagorean theorem
On projection third distance value；
The computing module determines the monitoring point in the XY coordinate system according to the third distance value and the angle
Coordinate information, and the location information is labeled on the threedimensional model according to the corresponding relationship of the monitoring point.
In above scheme, the range sensor and inclinometer interval predetermined time detect the first distance value,
The second distance value and the angle value, and the first distance value, the second distance value and the angle value are uploaded
To the database；
The database receives the first distance value, the second distance value and the angle value, and by described first
Distance value, the second distance value and the angle value store sequentially in time.
In above scheme, the computing module transfers t from the database1、t2……tnMonitoring point described in time is in institute
State the coordinate information (x of XY coordinate system1, y1)、(x2, y2)……(xn, yn), and calculated as follows:
The monitoring point is in tnTime is relative to t1The horizontal displacement △ x of time are as follows: △ x=xn—x1；
The monitoring point is in tnTime is relative to t1The vertical displacement △ y of time are as follows: △ y=yn—y1；
The horizontal displacement △ x and the vertical displacement △ y are uploaded in database by the computing module.
In above scheme, the predetermined time is 7 days.
It further include a monitoring module in the subway foundation pit system for monitoring displacement in above scheme；
A horizontal displacement threshold value and a vertical displacement threshold value are preset in the monitoring module；
The monitoring module transfers the horizontal displacement △ x and the vertical displacement △ y from the database, as △ x
It is greater than the vertical displacement threshold value greater than the horizontal displacement threshold value or △ y, then the monitoring module carries out early warning prompting.
Although the embodiment of the present invention has been disclosed as above, listed fortune not only in the description and the implementation
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily real
Now other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is not limited to
Specific details.
Claims (7)
1. a kind of subway foundation pit system for monitoring displacement characterized by comprising
Foundation pit side-wall stress detection device is used to detect the stress value of multiple candidate monitoring points of pre-selection, and will be each described
The stress value of candidate monitoring point is uploaded in database；
Database prestores the threedimensional model of foundation pit to be monitored；It receives the stress value to the database, and answers by described in
Force value marks in the threedimensional model according to the location information of the candidate monitoring point corresponding to it；Meanwhile from described three
The smallest candidate monitoring point of selection stress value on dimension module, and 2- is spaced on the horizontal line where the candidate monitoring point
6 meters of one monitoring points of determination；
The inside of the foundation pit to be monitored is arranged in measurement column；The measurement column is towards on the side wall of the foundation pit to be monitored
A range sensor and an inclinometer is respectively set；The range sensor is for detecting the measurement column to the range sensor
The monitoring point on the first distance value of the side wall of institute's direction and the measurement column and the side wall of the range sensor institute direction
Second distance value, and the first distance value and the second distance value are uploaded in the database；The inclinometer
When for measuring projection to the measurement column place plane of the monitoring point, the vertical direction of the measurement column and the projection
With the angle value of inclinometer line, and the angle value is uploaded in the database；
Wherein, the database receives the first distance value, the second distance value and the angle value, and by described first
Distance value, the second distance value and the angle value are stored according to the corresponding relationship of the monitoring point.
2. subway foundation pit system for monitoring displacement as described in claim 1, which is characterized in that also mark institute on the threedimensional model
Range sensor is stated in the projection site of the side wall of the foundation pit to be monitored of its direction；
And on the threedimensional model on the image of the side wall of every one side foundation pit to be monitored centered on the projection site
Establish XY coordinate system.
3. subway foundation pit system for monitoring displacement as claimed in claim 2, which is characterized in that it further include a computing module, it is described
Computing module is used to calculate the positional value of the monitoring point；The specific operation process of the computing module are as follows:
Projection and the monitoring of the computing module by the range sensor, the range sensor on the side wall
Point building right angled triangle, and the computing module transfers the first distance of a monitoring point from the database
Value and the second distance value, and the monitoring point and the range sensor are obtained on the side wall using Pythagorean theorem
The third distance value of projection；
The computing module determines the monitoring point in the seat of the XY coordinate system according to the third distance value and the angle
Information is marked, and the location information is labeled on the threedimensional model according to the corresponding relationship of the monitoring point.
4. subway foundation pit system for monitoring displacement as claimed in claim 3, which is characterized in that the range sensor and the angle
Spend the instrument interval predetermined time and detect the first distance value, the second distance value and the angle value, and by described first away from
The database is uploaded to from value, the second distance value and the angle value；
The database receives the first distance value, the second distance value and the angle value, and by the first distance
Value, the second distance value and the angle value store sequentially in time.
5. subway foundation pit system for monitoring displacement as claimed in claim 4, which is characterized in that the computing module is from the data
T is transferred in library1、t2……tnCoordinate information (x of the monitoring point described in time in the XY coordinate system1, y1)、(x2, y2)……(xn,
yn), and calculated as follows:
The monitoring point is in tnTime is relative to t1The horizontal displacement △ x of time are as follows: △ x=xn—x1；
The monitoring point is in tnTime is relative to t1The vertical displacement △ y of time are as follows: △ y=yn—y1；
The horizontal displacement △ x and the vertical displacement △ y are uploaded in database by the computing module.
6. subway foundation pit system for monitoring displacement as claimed in claim 4, which is characterized in that the predetermined time is 7 days.
7. subway foundation pit system for monitoring displacement as claimed in claim 5, which is characterized in that further include a monitoring module；
A horizontal displacement threshold value and a vertical displacement threshold value are preset in the monitoring module；
The monitoring module transfers the horizontal displacement △ x and the vertical displacement △ y from the database, when △ x is greater than
Horizontal displacement threshold value or △ y are greater than vertical displacement threshold value, then the monitoring module carries out early warning prompting.
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| CN201610629718.6A CN106092019B (en) | 2016-08-03 | 2016-08-03 | Subway foundation pit system for monitoring displacement |
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| CN201610629718.6A CN106092019B (en) | 2016-08-03 | 2016-08-03 | Subway foundation pit system for monitoring displacement |
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| CN106092019B true CN106092019B (en) | 2019-04-02 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106679627B (en) * | 2016-12-25 | 2019-12-03 | 杭州博烁晟斐智能科技有限公司 | A kind of communication iron tower verticality Problem judgment method and system based on Internet of Things |
| CN108229029A (en) * | 2018-01-05 | 2018-06-29 | 哈尔滨工程大学 | Semi-submersible offshore platform structure safety monitoring point choosing method |
| CN109724558A (en) * | 2019-01-03 | 2019-05-07 | 浙江华咨结构设计事务所有限公司 | A kind of static strain analysis system |
| CN110984114A (en) * | 2019-12-29 | 2020-04-10 | 青岛瑞源工程集团有限公司 | Deep foundation pit full-period dynamic monitoring method |
| CN111457848B (en) * | 2020-05-19 | 2022-02-01 | 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 |
| CN115574732B (en) * | 2022-12-08 | 2023-03-10 | 北京新兴环宇信息科技有限公司 | Foundation pit detection method and detection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011185017A (en) * | 2010-03-11 | 2011-09-22 | Railway Technical Research Institute | Noncontact-type earth-retaining wall displacement measuring method |
| CN102628281A (en) * | 2012-04-10 | 2012-08-08 | 长沙理工大学 | Horizontal displacement monitoring method for measuring point in foundation pit engineering |
| CN102620699A (en) * | 2012-04-13 | 2012-08-01 | 靳纪洲 | Method for measuring deformation monitoring directional horizontal displacement by using directional vertical distance method |
| CN103352483A (en) * | 2013-07-22 | 2013-10-16 | 广西土木勘察检测治理有限公司 | Deep foundation pit monitoring and early warning system |
| CN103526783B (en) * | 2013-10-21 | 2015-11-04 | 中航勘察设计研究院有限公司 | A kind of method measuring building foundation pit horizontal movement |
| CN104501766B (en) * | 2014-12-25 | 2017-07-04 | 青岛理工大学 | Monitor parameter and method for early warning in Side Slope of Deep Foundation Pit Excavation vertical displacement vectors angle |
| CN105064371B (en) * | 2015-08-03 | 2017-07-18 | 河海大学 | A kind of deformation of deep excavation alarm method |
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