CN111828027B - Total station changing method based on mobile turning point - Google Patents
Total station changing method based on mobile turning point Download PDFInfo
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- CN111828027B CN111828027B CN202010757928.XA CN202010757928A CN111828027B CN 111828027 B CN111828027 B CN 111828027B CN 202010757928 A CN202010757928 A CN 202010757928A CN 111828027 B CN111828027 B CN 111828027B
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000005641 tunneling Effects 0.000 claims abstract description 31
- 238000005259 measurement Methods 0.000 claims description 20
- 230000008859 change Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000009194 climbing Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a total station changing method based on a mobile transfer point, which comprises the following steps: (1) arrangement of moving turning points; (2) selecting a new site; (3) measuring coordinates of the moving turning point; (4) and (4) measuring coordinates of the new station and the rear view point. According to the station changing method, the mobile turning point is arranged at the tail part of the shield machine, and when the station is changed, the total station can be directly arranged at the mobile turning point to measure the coordinates of the new station and the back view point, so that various problems caused by the fact that the coordinates of the new station are measured by the back view point in the prior art are avoided; and the movable turning point can synchronously advance with the shield tunneling machine and be repeatedly used, so that the cost is greatly saved, and the station changing efficiency is improved.
Description
Technical Field
The invention relates to the field of large-diameter shields, in particular to a total station changing method based on a mobile turning point.
Background
When the shield machine tunnels, the total station is usually matched with a laser target to realize the guidance of tunneling. And (3) increasing the distance between the total station and the laser target along with the tunneling of the shield tunneling machine, and when the distance is increased to a certain value, moving the total station forward, namely, changing stations.
When the station is changed, a new station is usually selected at a proper position in front of the original station according to the experience of a constructor, and after the selection is completed, the coordinate of the new station needs to be measured and input into a guide system of the shield machine, so that the guide of the shield machine is realized.
The traditional station change process is as follows: selecting a new station, taking an original station as a rear viewpoint, then erecting the total station at an encrypted wire point in the tunnel, measuring coordinates of the rear viewpoint, then moving the total station to the rear viewpoint after the measurement is finished, and then measuring coordinates of the new station. However, the above-mentioned rear viewpoint and new station are both located on the segment above the shield machine, and in the above-mentioned station changing process, because the situation in the shield tunnel is complicated, the following problems may occur during measurement: 1. if the tunneling direction of the shield tunneling machine changes, the rear viewpoint cannot be seen at the encrypted lead point behind the shield tunneling machine, and the rear viewpoint coordinate cannot be measured at the encrypted lead point; 2. in the tunneling process of the shield tunneling machine, a rear view point may be separated from the length range of the shield tunneling machine and is no longer located on a duct piece above the shield tunneling machine, if the total station is moved to the rear view point, the total station needs to be moved by means of a climbing vehicle, and due to the limitation of site construction conditions, the climbing vehicle can cause the blockage of a box culvert upper road; 3. in the tunneling process of the shield tunneling machine, the position of the rear viewpoint may not be on a segment above the shield tunneling machine, and a constructor usually selects to install a measuring frame as a turning point to measure the coordinates of a new station and the rear viewpoint, but the new installation of the measuring frame prolongs the station changing time and delays the shield tunneling.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a total station changing method based on a moving turning point.
In order to achieve the purpose, the invention adopts the technical scheme that:
a total station changing method based on a mobile transfer point comprises the following steps:
(1) arrangement of moving turning points: after the shield machine stops tunneling, arranging a movable turning point at the tail of the shield machine to ensure that the position of the movable turning point is stable and is seen through from front to back;
(2) selecting a new site: selecting a new station in front of an original station of the total station along the tunneling direction of the shield tunneling machine, and taking the original station as a rear viewpoint;
(3) coordinate measurement of moving turning points: selecting one encrypted wire point closest to the rear viewpoint from a plurality of encrypted wire points arranged behind the shield machine as a measuring point, moving the total station from the rear viewpoint to the measuring point, and measuring the coordinate of the moving turning point at the measuring point;
(4) coordinate measurement of new site and back-viewpoint: moving the total station from the measuring point to the moving turning point, and measuring the coordinates of the new station and the back viewpoint at the moving turning point, respectively, and then moving the total station to the new station.
Preferably, in step (1), the stability of the moving turning point is detected by using a total station, specifically: and erecting the total station at the moving turning point, wherein if the electronic horizontal bubble of the total station is stable, the moving turning point is shown to meet the stability requirement.
Preferably, in step (1), detecting visibility of the moving turning point by using a total station, specifically: and erecting the total station at the mobile turning point, observing the visibility between the mobile turning point and the measuring point, the new station and the rear view point by using the total station, and if no obstacle is blocked and the vision is good, indicating that the mobile turning point meets the visibility requirement.
Preferably, in the step (2), the new viewpoint is located on the same horizontal plane as the rear viewpoint.
Further preferably, in the step (2), the distance between the new viewpoint and the rear viewpoint is 70 to 100 m.
Preferably, in the step (3), when measuring the coordinate of the moving turning point, firstly, another encrypted wire point is selected behind the measuring point as an orientation point, then a prism is placed at the orientation point, the total station at the measuring point faces the orientation point and determines the directional coordinate of the orientation point, then a prism is placed at the moving turning point, the total station at the measuring point is turned to the moving turning point, the directional coordinate of the moving turning point can be obtained according to the turning angle of the total station, and then the total station is used to measure the position coordinate of the moving turning point, so that the final coordinate of the moving turning point can be obtained.
Preferably, in the step (4), when the coordinates of the new station and the rear viewpoint are measured, a prism is first placed at the measurement point, the total station at the moving turning point is directed to the measurement point and the directional coordinates of the measurement point are determined, then prisms are placed at the new station and the rear viewpoint, the total station at the moving turning point is sequentially turned to the new station and the rear viewpoint, the directional coordinates of the new station and the rear viewpoint can be obtained according to the turning angle of the total station, and then the total station is used to measure the position coordinates of the new station and the rear viewpoint, so that the final coordinates of the new station and the rear viewpoint can be obtained.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the station changing method, the mobile turning point is arranged at the tail part of the shield machine, and when the station is changed, the total station can be directly arranged at the mobile turning point to measure the coordinates of the new station and the back view point, so that various problems caused by the fact that the coordinates of the new station are measured by the back view point in the prior art are avoided; and the movable turning point can synchronously advance with the shield tunneling machine and be repeatedly used, so that the cost is greatly saved, and the station changing efficiency is improved.
Drawings
Fig. 1 is a schematic diagram of a total station change measurement in an embodiment of the present invention.
Wherein: 1. a shield machine; 2. a new site; 3. moving the turning point; 4. a rear viewpoint; 5. the wire points are encrypted.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
The invention relates to an improvement on station change of a total station, which aims to solve various problems caused by the fact that the station change needs to be carried out by means of a rear view point in the existing station change process. According to the station changing method, the mobile turning point is arranged at the tail part of the shield machine, and when the station is changed, the total station can be directly arranged at the mobile turning point to measure the coordinates of the new station and the back view point, so that various problems caused by the fact that the coordinates of the new station are measured by the back view point in the prior art are avoided; and the movable turning point can synchronously advance with the shield tunneling machine and be repeatedly used, so that the cost is greatly saved, and the station changing efficiency is improved.
As shown in fig. 1, a schematic diagram of the station change measurement of the present embodiment is shown. The plurality of encrypted wire points 5 are detection points arranged behind the shield tunneling machine along with the tunneling of the shield tunneling machine 1, and the plurality of encrypted wire points 5 enclose a closed wire network. The specific arrangement of the encryption wire points is not described in detail herein.
The embodiment discloses a total station changing method based on a mobile transfer point, which comprises the following steps:
(1) arrangement of moving turning points: after the shield machine 1 stops tunneling, a movable turning point 3 is arranged at the tail of the shield machine 1, and the position of the movable turning point 3 is stable and is seen from front to back.
In this embodiment, the total station is used to detect the stability and visibility of the mobile turning point 3, specifically: erecting the total station at a moving turning point 3, and if an electronic horizontal bubble of the total station is stable, indicating that the moving turning point 3 meets the stability requirement; and observing the visibility between the moving turning point 3 and the measuring point, between the new station 2 and the rear viewpoint 4 by using a total station, and if no obstacle is blocked and the visual field is good, indicating that the moving turning point 3 meets the visibility requirement.
Here, the specific use and measurement principle of the total station is the prior art, and is not described herein in detail.
(2) Selecting a new site: and selecting a new station 2 in front of an original station of the total station along the tunneling direction of the shield tunneling machine 1, and taking the original station as a rear viewpoint 4. Here, the new station 2 and the rear viewpoint 4 are located on the same horizontal plane and are both installed on the segment of the shield tunnel. Wherein the distance between the new station 2 and the rear viewpoint 4 is 70-100 m.
(3) Coordinate measurement of moving turning points: selecting one encrypted wire point 5 closest to a rear viewpoint 4 from a plurality of encrypted wire points 5 arranged behind the shield tunneling machine 1 as a measuring point, moving the total station from the rear viewpoint 4 to the measuring point, and measuring the coordinates of the moving turning point 3 at the measuring point.
When measuring the coordinate of the moving turning point 3, firstly, another encrypted wire point 5 is selected behind the measuring point as an orientation point, then a prism is placed at the orientation point, the total station at the measuring point faces the orientation point and determines the directional coordinate of the orientation point, then the prism is placed at the moving turning point 3, the total station at the measuring point is turned to the moving turning point 3, the directional coordinate of the moving turning point 3 can be obtained according to the turning angle of the total station, and then the total station is used for measuring the position coordinate of the moving turning point 3, so that the final coordinate of the moving turning point 3 can be obtained.
(4) Coordinate measurement of new site and back-viewpoint: the total station is moved from the measuring point to the moving turning point 3, and the coordinates of the new station 2 and the back viewpoint 4 are measured at the moving turning point 3, respectively, and then the total station is moved to the new station 2.
When measuring the coordinates of the new station 2 and the rear viewpoint 4, firstly, a prism is placed at the measuring point, the total station at the moving rotating point 3 faces the measuring point and determines the directional coordinates of the measuring point, then, prisms are placed at the new station 2 and the rear viewpoint 4, the total station at the moving rotating point 3 sequentially turns to the new station 2 and the rear viewpoint 4, the directional coordinates of the new station 2 and the rear viewpoint 4 can be obtained according to the rotation angle of the total station, and then, the total station is used for measuring the position coordinates of the new station 2 and the rear viewpoint 4, so that the final coordinates of the new station 2 and the rear viewpoint 4 can be obtained.
In the above step (3) and step (4), the principle of measuring the coordinates by the total station and the prism in a specific matching manner is the prior art, and details are not described in detail.
And after the final coordinates of the new station 2 and the rear view point 4 are obtained, inputting the final coordinates into a guiding system of the shield machine 1, and realizing the forward guiding of the shield machine 1.
After the shield machine 1 stops tunneling, the moving turning point 3 is ensured to be absolutely static in the station changing process, and large vibration and strong light sources cannot be arranged nearby the moving turning point 3. And after the coordinate measurement of the new station 2 is finished, immediately moving the total station to the new station 2 for station establishment, finishing the station change measurement work, and then starting the mechanical construction near the position.
After the shield machine 1 tunnels a certain distance, the total station needs to be changed again, at the moment, a turning point does not need to be additionally arranged, the measurement can be completed by directly repeating the steps (2), (3) and (4), and the method is simple and convenient.
After multiple use, the station changing time can be controlled within 30min, and the efficiency is greatly improved.
The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (7)
1. A total station changing method based on a mobile transfer point is characterized in that: the method comprises the following steps:
(1) arrangement of moving turning points: after the shield machine stops tunneling, arranging a movable turning point at the tail of the shield machine to ensure that the position of the movable turning point is stable and is seen through from front to back;
(2) selecting a new site: selecting a new station in front of an original station of the total station along the tunneling direction of the shield tunneling machine, and taking the original station as a rear viewpoint;
(3) coordinate measurement of moving turning points: selecting one encrypted wire point closest to the rear viewpoint from a plurality of encrypted wire points arranged behind the shield machine as a measuring point, moving the total station from the rear viewpoint to the measuring point, and measuring the coordinate of the moving turning point at the measuring point;
(4) coordinate measurement of new site and back-viewpoint: moving the total station from the measuring point to the moving turning point, and measuring the coordinates of the new station and the back viewpoint at the moving turning point, respectively, and then moving the total station to the new station.
2. The total station changing method based on the mobile turning point, according to claim 1, wherein: in the step (1), detecting the stability of the moving turning point by using a total station, specifically: and erecting the total station at the moving turning point, wherein if the electronic horizontal bubble of the total station is stable, the moving turning point is shown to meet the stability requirement.
3. The total station changing method based on the mobile turning point, according to claim 1, wherein: in the step (1), detecting the visibility of the moving turning point by using a total station, specifically: and erecting the total station at the mobile turning point, observing the visibility between the mobile turning point and the measuring point, the new station and the rear view point by using the total station, and if no obstacle is blocked and the vision is good, indicating that the mobile turning point meets the visibility requirement.
4. The total station changing method based on the mobile turning point, according to claim 1, wherein: in the step (2), the new viewpoint is located on the same horizontal plane as the rear viewpoint.
5. The total station changing method based on a mobile turning point according to claim 1 or 4, wherein: in the step (2), the distance between the new viewpoint and the rear viewpoint is 70-100 m.
6. The total station changing method based on the mobile turning point, according to claim 1, wherein: in the step (3), when measuring the coordinate of the moving turning point, firstly, another encrypted wire point is selected behind the measuring point as an orientation point, then a prism is placed at the orientation point, the total station at the measuring point faces the orientation point and determines the directional coordinate of the orientation point, then the prism is placed at the moving turning point, the total station at the measuring point is turned to the moving turning point, the directional coordinate of the moving turning point can be obtained according to the rotation angle of the total station, and then the total station is used for measuring the position coordinate of the moving turning point, so that the final coordinate of the moving turning point can be obtained.
7. The total station changing method based on the mobile turning point, according to claim 1, wherein: in the step (4), when the coordinates of the new station and the rear viewpoint are measured, first a prism is placed at the measurement point, the total station at the moving turning point is directed to the measurement point and the directional coordinates of the measurement point are determined, then prisms are placed at the new station and the rear viewpoint, the total station at the moving turning point is sequentially turned to the new station and the rear viewpoint, the directional coordinates of the new station and the rear viewpoint can be obtained according to the rotation angle of the total station, and then the total station is used to measure the position coordinates of the new station and the rear viewpoint, so that the final coordinates of the new station and the rear viewpoint can be obtained.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010757928.XA CN111828027B (en) | 2020-07-31 | 2020-07-31 | Total station changing method based on mobile turning point |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010757928.XA CN111828027B (en) | 2020-07-31 | 2020-07-31 | Total station changing method based on mobile turning point |
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| CN111828027B true CN111828027B (en) | 2022-01-18 |
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| CN114111759A (en) * | 2021-11-04 | 2022-03-01 | 中国煤炭科工集团太原研究院有限公司 | Mine positioning robot and positioning method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101392653A (en) * | 2008-10-17 | 2009-03-25 | 华中科技大学 | Three-dimensional attitude measuring set of tunneling construction guidance system |
| CN102829753A (en) * | 2011-06-16 | 2012-12-19 | 上海日浦信息技术有限公司 | Three-dimensional attitude measurement device of tunnel boring construction guidance system |
| CN102679974B (en) * | 2012-05-30 | 2015-10-14 | 上海隧道工程股份有限公司 | Location exempts to change standing posture shield excavation attitude method for real-time measurement and system at a high speed |
| CN104764434B (en) * | 2015-03-31 | 2017-06-06 | 徐州市市政设计院有限公司 | A kind of quick resolving system of shield attitude and method |
| CN107525497A (en) * | 2017-08-16 | 2017-12-29 | 上海市基础工程集团有限公司 | Automatic measurement guidance system and method for slurry balance shield machine |
| CN107449407A (en) * | 2017-08-16 | 2017-12-08 | 上海市基础工程集团有限公司 | Automatic measurement guidance system and method for balancing earth-pressure shielding machine |
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