CN109612429A - A kind of 3-D positioning method of the segment beam end prestress pipe based on total station - Google Patents
A kind of 3-D positioning method of the segment beam end prestress pipe based on total station Download PDFInfo
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- CN109612429A CN109612429A CN201811612301.4A CN201811612301A CN109612429A CN 109612429 A CN109612429 A CN 109612429A CN 201811612301 A CN201811612301 A CN 201811612301A CN 109612429 A CN109612429 A CN 109612429A
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- total station
- elevation
- mileage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
- G01C1/02—Theodolites
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The 3-D positioning method of the present invention relates to a kind of segment beam end prestress pipe based on total station, beam sections 0# block end section mileage and prestressing force bellows position are specified, and prestress pipe mileage, elevation and deviator are determined according to design road-center line position and elevation；The any position of beam sections section template is sighted with total station, total station obtains absolute fix coordinate, eyeball mileage is obtained using calculated by coordinate software, elevation and deviator, and by eyeball mileage, the theoretical mileage that elevation and deviator and step 1 obtain, elevation and deviator compare, obtain difference, adjustment total station sights direction and angle, above step is repeated again carries out eyeball mileage, elevation, deviator survey is set, until measured data is close or equal to gross data, complete the accurate three-dimensional positioning of prestress pipe position, have precision high with the prestress pipe position that the method is positioned, fireballing advantage.
Description
Technical field
The present invention relates to the technical field of bridge engineering of beam sections free cantilever erection construction, and in particular to one kind is based on complete
Stand instrument segment beam end prestress pipe 3-D positioning method.
Background technique
When using beam sections free cantilever erection construction, 0# block is typically designed to cast-in-place construction, and dehumidifying seam is other
Stage is typically designed to the prefabricated processing of batch production.Wet seam is usually provided between 0# block and 1# block, since longitudinal prestressing needs
Across all segments of entire bridge and wet seam, thus it is guaranteed that the positioning of prestressing force corrugated tube end is to determine 1# when cast in situs
Whether longitudinal prestressing pipeline can smoothly be passed to the key factor of prestress wire after the completion of block lifting, and guarantee that bridge is resistance to
The key of long property.Otherwise it will cause and largely repair and do over again, and will affect prestress pipe design line style and the coefficient of friction resistance, from
And influence the real effectiveness of tension data.Conventional method is using the method measured from messenger wire after road axis gage, such as
Fruit carries out strict control, and synthesis precision can reach ± 5mm, if the method has the disadvantages that the longer feelings of a, lateral distance
Under condition, it cannot ensure that tool cross fall is missed fully horizontally or according to the design top surface gradient so that range measurement exists when gage
Difference；B, when messenger wire measures, there are the shaking of line pendant or human eye sight errors, and so as to cause measurement, there are errors.
According to related specifications and design requirement, prestress pipe position tolerance is therefore ± 5mm develops one kind
Efficiently, easy-operating prestress pipe 3-D positioning method plays a significant role construction speed and cost.
Summary of the invention
In view of the deficiencies in the prior art and problem, it is pre- that the present invention provides a kind of segment beam end based on total station
The 3-D positioning method of stress pipeline.Have precision high, fireballing with the prestress pipe position that the method is positioned
Advantage, the method have prevented the inaccurate problem of artificial positioning from operating level.
The present invention solves scheme used by its technical problem: a kind of segment beam end prestressed pipe based on total station
The 3-D positioning method in road, comprising the following steps:
Step 1: according to the clear beam sections 0# block end section mileage of design drawing and prestressing force bellows position, and according to
Design road-center line position and elevation determine prestress pipe mileage KIt is real, elevation HIt is realAnd deviator NIt is real；
Step 2: any position of beam sections section template is sighted with total station, total station obtains absolute fix coordinate, benefit
Eyeball mileage K is obtained with calculated by coordinate software1, elevation H1With deviator N1, and by eyeball mileage K1, elevation H1With deviator N1With
The theoretical mileage K that step 1 obtainsIt is real, elevation HIt is realAnd deviator NIt is realIt compares, obtains difference；Mileage difference calculation method are as follows: K0=
K1-KIt is real, elevation HODifference calculation method are as follows: H0=H1-HIt is real, deviator N0Difference calculation method are as follows: N0=N1-NIt is real；
Step 3: adjustment total station sights direction and angle, if H0It, then should will be under point when next successive step for positive value
It moves, distance is H0；If N0, then should be mobile to close road axis direction by point when next successive step for positive value, distance is
N0；It is on the contrary then move round about；Above step is repeated again obtains eyeball mileage K2, elevation H2With deviator N2, until real
Measured data is close or equal to gross data, completes the accurate three-dimensional positioning of prestress pipe position.
Further, the total station is high precision total station, its required precision of high precision total station reaches 0.1mm.
Further, the total station in high-acruracy survey use without prism mode.
Further, the calculated by coordinate software is the survey of building site access or surveyor.
Beneficial effects of the present invention: a kind of three-dimensional of segment beam end prestress pipe based on total station of the invention is fixed
Position method, the prestress pipe position positioned with the method have the advantages that precision height, fireballing, and the method is from operation
Level has prevented the inaccurate problem of artificial positioning.
The method measured using traditional utilization from messenger wire after road axis gage due to formwork reinforcement in construction, is faced
Frontier defense shield etc. influences, and when carrying out dipstick metering and messenger wire measurement, often there is circumstance of occlusion, so that measurement efficiency is influenced, meanwhile, also need
More people's cooperations.It is measured with 3-D positioning method of the invention, can will calculate elevation HO difference, deviator difference N0 is integrated in seat
It marks in inverse software, to reduce artificial amount of calculation, improves accuracy in computation and efficiency.It is pre- with certain beam sections 0# block end face
Stress pipeline be 56 beams for, 2 day time was taken around using conventional method prestressed pipe channel positioning method, using institute of the present invention
Method is stated about to take 0.5 day.
Detailed description of the invention
Fig. 1 is certain engineering wherein girder pre-stressed bellows position cross-section diagram in a segment；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is field conduct layout drawing.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment 1: a kind of 3-D positioning method of the segment beam end prestress pipe based on total station, including following step
It is rapid:
Step 1: according to the clear beam sections 0# block end section mileage of design drawing and prestressing force bellows position, and according to
Design road-center line position and elevation determine prestress pipe mileage, elevation and deviator mileage K reality, elevation H reality and deviator N
It is real.
Step 2: any position of beam sections section template is sighted with total station, total station obtains absolute fix coordinate, benefit
It is obtained with calculated by coordinate software, such as building site access survey (version number: 8.3.40), surveyor (version number: Version 8.9.10)
To eyeball mileage K1, elevation H1 and deviator N1, and the theoretical mileage K that eyeball mileage, elevation and deviator and step 1 are obtained
Real, elevation H reality and deviator N are compared in fact, obtain difference.Elevation HO difference calculation method are as follows: H0=H1-H is real, deviator N0 meter
Calculation method are as follows: N0=N1-N is real.(it should be noted that being surveyed since actual measurement point is generally in Measure section
Mileage K1 and theoretical mileage K reality difference are very small, thus the elevation H1 and deviator N1 that are calculated by calculated by coordinate software it
Influence can be ignored, can be calculated without mileage difference.) if H0 is positive value, when next successive step, should be by point
It moves down, distance is H0；If N0 is positive value, when next successive step should by point to mobile close to road axis direction, away from
From for N0；It is on the contrary then move round about.Adjustment total station sights direction and angle, and repeatedly above step is surveyed again
Point mileage, elevation, deviator survey are set, until measured data is close or equal to gross data, complete the accurate of prestress pipe position
Three-dimensional localization.
Specific three-dimensional localization operation is as follows:
1, preparation is calculated before carrying out testing, mainly determines certain prestress pipe section mileage, deviator and theoretical elevation.Such as figure
Shown in 2, by taking certain H2 prestress pipe on section as an example:
Wherein, highway layout center line to H2 pipe centerline horizontal distance is m, and pipeline is apart from highway layout relief water
Flat distance is A, is n apart from bridge floor distance right above it, deck transverse slope is i% and slope aspect H2 duct orientation, this section road is set
Meter absolute altitude is H, then its three-dimensional location Calculation of H2 pipeline center position is as follows:
2, it as shown in figure 3, setting up total station, and completes backsight and sights and check.
3, beam sections section template any position is sighted with total station non-prism mode.
4, coordinate (x1, y1, z1) is obtained.
5, eyeball mileage K1=KX+Ya, elevation H1=Za, deviator N1=ma are obtained with calculated by coordinate software.
6, actual measurement mileage, elevation and deviator and certain pipeline theory three-dimensional localization are compared, obtains difference.
7, adjustment total station sights direction and angle, carries out eyeball mileage, elevation, deviator and surveys and set.
8, measured data and gross data difference are compared again, are adjusted total station again and are sighted direction and angle.
9, above step is repeated, until measured data is close or equal to gross data, at this point, completing pipeline location positioning.
The prestress pipe position positioned with the method has the advantages that precision is high, fireballing, and the method is from behaviour
The inaccurate problem of artificial positioning is prevented as level.
Claims (4)
1. a kind of 3-D positioning method of the segment beam end prestress pipe based on total station, it is characterised in that: including following
Step:
Step 1: according to the clear beam sections 0# block end section mileage of design drawing and prestressing force bellows position, and according to design
Road-center line position and elevation determine prestress pipe mileage KIt is real, elevation HIt is realAnd deviator NIt is real；
Step 2: any position of beam sections section template is sighted with total station, total station obtains absolute fix coordinate, utilizes seat
Mark inverse software obtains eyeball mileage K1, elevation H1With deviator N1, and by eyeball mileage K1, elevation H1With deviator N1With step
1 obtained theoretical mileage KIt is real, elevation HIt is realAnd deviator NIt is realIt compares, obtains difference；Mileage difference calculation method are as follows: K0=K1-
KIt is real, elevation HODifference calculation method are as follows: H0=H1-HIt is real, deviator N0Difference calculation method are as follows: N0=N1-NIt is real；
Step 3: adjustment total station sights direction and angle, if H0For positive value, then point should be moved down when next successive step, away from
From for H0；If N0, then should be by point to close to the movement of road axis direction when next successive step for positive value, distance is N0；Instead
Then move round about；Above step is repeated again obtains eyeball mileage K2, elevation H2With deviator N2, until actual measurement number
According to gross data is close or equal to, the accurate three-dimensional positioning of prestress pipe position is completed.
2. a kind of 3-D positioning method of segment beam end prestress pipe based on total station according to claim 1,
It is characterized by: the total station is high precision total station, its required precision of high precision total station reaches 0.1mm.
3. a kind of 3-D positioning method of segment beam end prestress pipe based on total station according to claim 1,
It is characterized by: the total station in high-acruracy survey use without prism mode.
4. a kind of 3-D positioning method of segment beam end prestress pipe based on total station according to claim 1,
It is characterized by: the calculated by coordinate software is the survey of building site access or surveyor.
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| CN201811612301.4A CN109612429A (en) | 2018-12-27 | 2018-12-27 | A kind of 3-D positioning method of the segment beam end prestress pipe based on total station |
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| CN201811612301.4A CN109612429A (en) | 2018-12-27 | 2018-12-27 | A kind of 3-D positioning method of the segment beam end prestress pipe based on total station |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487143A (en) * | 2019-07-10 | 2019-11-22 | 沪东中华造船(集团)有限公司 | A kind of inclined-plane segmented node quickly takes a measurement method |
| CN112982182A (en) * | 2021-03-04 | 2021-06-18 | 保利长大工程有限公司 | Variable-curve cast-in-place beam bottom web plate reinforcing steel bar integral hoisting equipment and use method thereof |
| CN114411482A (en) * | 2022-01-26 | 2022-04-29 | 郑州一建基团工程建设有限公司 | Arc ramp construction joint elevation control and strip-shaped segmentation formwork supporting method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110487143A (en) * | 2019-07-10 | 2019-11-22 | 沪东中华造船(集团)有限公司 | A kind of inclined-plane segmented node quickly takes a measurement method |
| CN112982182A (en) * | 2021-03-04 | 2021-06-18 | 保利长大工程有限公司 | Variable-curve cast-in-place beam bottom web plate reinforcing steel bar integral hoisting equipment and use method thereof |
| CN114411482A (en) * | 2022-01-26 | 2022-04-29 | 郑州一建基团工程建设有限公司 | Arc ramp construction joint elevation control and strip-shaped segmentation formwork supporting method |
| CN114411482B (en) * | 2022-01-26 | 2023-04-25 | 郑州一建集团工程建设有限公司 | Arc ramp construction joint elevation control and strip-shaped segmentation formwork supporting method |
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