CN102288156B - Second-class bench mark on-bridge measurement method - Google Patents
Second-class bench mark on-bridge measurement method Download PDFInfo
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- CN102288156B CN102288156B CN 201110204124 CN201110204124A CN102288156B CN 102288156 B CN102288156 B CN 102288156B CN 201110204124 CN201110204124 CN 201110204124 CN 201110204124 A CN201110204124 A CN 201110204124A CN 102288156 B CN102288156 B CN 102288156B
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Abstract
The invention discloses a second-class bench mark on-bridge measurement method, which is characterized in that under-line bench marks and on-bridge bench marks are respectively arranged at a first bridge pier to be measured and a second bridge pier to be measured; by utilizing two known elevation control points which are positioned at different positions, the elevation difference between each elevation control point and each under-line bench mark can be respectively obtained through a back-and-forth measurement mode complying with the line of a level; the elevation difference between each under-line bench mark and each on-bridge bench mark can be measured by utilizing a full-station measurement instrument; the elevation difference between the two on-bridge bench marks can be measured by an electronic level; and finally, the elevation of the first on-bridge bench mark and the second on-bridge bench mark can be obtained according to a compensating computation method. The invention is used for determining the elevation of a high pier, and has the advantages that the measurement process is more convenient and fast, the measurement precision is higher, and the construction requirement can be met.
Description
Technical field
The present invention relates to a kind of measurement of higher degree method, a kind of measuring method that is used for confirming high pier elevation of more specifically saying so.
Background technology
At present China's each item is built especially the high ferro construction speed and is advanced by leaps and bounds, and high pier shaft generally occurs in the engineering, and the measurement difficult problem of high pier shaft is following, and the measurement of the level precision is most important for on-the-spot elevation construction quality.At present China comprises for the method for high pier shaft measurement of the level: use common total powerstation, GPS directly to measure or use tape directly to measure, the measuring accuracy of this type metering system can not satisfy construction requirement.
Summary of the invention
The present invention is for avoiding above-mentioned existing in prior technology weak point, bridge measuring method on a kind of second-class leveling point that is used for confirming high pier elevation is provided, so that measuring process is more convenient, measuring accuracy is higher, to satisfy construction requirement.
The characteristics of bridge measuring method are to carry out as follows on the second-class leveling point of the present invention:
A, respectively leveling point on the leveling point and bridge is set under the line
In the bottom of the first tested bridge pier, the side locations place that is positioned at the first tested bridge pier is provided with leveling point C1 under first line; Above the first tested bridge pier, be in said first line under leveling point D1 on first bridge is set on the beam body hold-down support end retaining Zha Qiang at leveling point C1 opposite position place;
In the bottom of the second tested bridge pier, the side locations place that is positioned at the second tested bridge pier is provided with leveling point C2 under second line; Above the second tested bridge pier, be in said second line under leveling point D2 on second bridge is set on the beam body hold-down support end retaining Zha Qiang at leveling point C2 opposite position place;
B, utilize to divide the known vertical control point A that is on the diverse location and known vertical control point B, come and go measurement pattern and obtain respectively to conform to line of level:
Discrepancy in elevation hA1 under the vertical control point A and first line between the leveling point C1;
Discrepancy in elevation hA2 under the vertical control point A and second line between the leveling point C2;
Discrepancy in elevation hB1 under the vertical control point B and first line between the leveling point C1;
Discrepancy in elevation hB2 under the vertical control point B and second line between the leveling point C2;
The discrepancy in elevation between the leveling point on leveling point and the bridge under c, the slotted line
Utilize total station survey to obtain: the discrepancy in elevation h11 at the collimation center of leveling point C1 and total powerstation under first line
The discrepancy in elevation h12 at the collimation center of leveling point D1 and total powerstation on first bridge
The discrepancy in elevation h21 at the collimation center of leveling point C2 and total powerstation under second line
The discrepancy in elevation h22 at the collimation center of leveling point D2 and total powerstation on second bridge
Then under first line on the leveling point C1 and first bridge discrepancy in elevation h1 between the leveling point D1 be: h1=h11+h12
Under second line on the leveling point C2 and second bridge discrepancy in elevation h2 between the leveling point D2 be: h2=h21+h22
D, measure on first bridge discrepancy in elevation h3 between the leveling point D2 on the leveling point D1 and second bridge with electronic level
E, utilize following data, obtain on first bridge elevation of leveling point D2 on the leveling point D1 and second bridge respectively according to compensating computation:
Known vertical control point A and the elevation of vertical control point B,
Discrepancy in elevation hA1 under the vertical control point A and first line between the leveling point C1,
Discrepancy in elevation hA2 under the vertical control point A and second line between the leveling point C2,
Discrepancy in elevation hB1 under the vertical control point B and first line between the leveling point C1,
Discrepancy in elevation hB2 under the vertical control point B and second line between the leveling point C2,
Discrepancy in elevation h1 between the leveling point D1 on the leveling point C1 and first bridge under first line,
Discrepancy in elevation h2 between the leveling point D2 on the leveling point C2 and second bridge under second line,
Discrepancy in elevation h3 between the leveling point D2 on the leveling point D1 and second bridge on first bridge.
The said first tested bridge pier and the second tested bridge pier are at a distance of 150-250 rice.
Compared with present technology, beneficial effect of the present invention is embodied in:
1, among the present invention; Level independent measurement under level and the line adopts trigonometric levelling between leveling point under leveling point and the line on the bridge on the line, and three line of level check mutually in the adjustment; Make measurement pattern more reasonable, make high pier measurement of higher degree precision that large increase arranged.
2, the photoelectric triangulated Height transfer method in the relative prior art can only be used for three fourth-order levelings; The present invention adopts and looks measuring method in the intelligent total powerstation triangulated height that measuring appratus is not high and carry out Height transfer; Existing triangulated height transmission method is improved, make precision satisfy the second-order levelling code requirement.
3, the present invention has widened the second-order levelling scope, makes that the high precision elevation control becomes possibility in the complex engineering.
4, compare existing method, the inventive method simple operation is clear, and the scene is easier to control.
Description of drawings
Fig. 1 is leveling measuring method synoptic diagram on measurement of the level under the center line of the present invention and the bridge;
Fig. 2 is leveling point vertical survey synoptic diagram on leveling point under the center line of the present invention and the bridge;
Label among the figure: 1 first tested bridge pier; 2 second tested bridge piers; 3 retaining Zha Qiang; 4 total powerstations.
Embodiment
The bridge measuring method is carried out as follows on the second-class leveling point in the present embodiment:
1, leveling point on the leveling point and bridge is set under the line respectively
In the bottom of the first tested bridge pier 1, the side locations place that is positioned at the first tested bridge pier 1 is provided with leveling point C1 under first line; Above the first tested bridge pier 1, be in first line under leveling point D1 on first bridge is set on the beam body hold-down support end retaining tiny fragments of stone, coal, etc. wall 3 at leveling point C1 opposite position place; Leveling point must be embedded in position stability and on-deformable position on the beam body; For free beam top, select to be embedded on the hold-down support end retaining Zha Qiang.
In the bottom of the second tested bridge pier 2, the side locations place that is positioned at the second tested bridge pier 2 is provided with leveling point C2 under second line; Above the second tested bridge pier 2, be in second line under leveling point D2 on second bridge is set on the beam body hold-down support end retaining tiny fragments of stone, coal, etc. wall 3 at leveling point C2 opposite position place;
The first tested bridge pier 1 and the second tested bridge pier 2 are at a distance of 150-250 rice, and distance is unsuitable excessive between two tested bridge piers, avoid on bridge under the measurement of the level and line in the measurement of the level cumulative errors excessive.
2, utilize to divide the known vertical control point A that is on the diverse location and known vertical control point B, come and go measurement pattern and obtain respectively to conform to line of level:
Discrepancy in elevation hA1 under the vertical control point A and first line between the leveling point C1;
Discrepancy in elevation hA2 under the vertical control point A and second line between the leveling point C2;
Discrepancy in elevation hB1 under the vertical control point B and first line between the leveling point C1;
Discrepancy in elevation hB2 under the vertical control point B and second line between the leveling point C2;
Conform to line of level and come and go the pattern that measurement pattern is frequent employing in the high-precision leveling; Use electronic level to cooperate indium watt chi to measure; Employing odd even station alternately is that preceding measurement pattern is carried out testing behind the preceding front and back-front and back, back, can effectively guarantee measurement of the level precision under the line.
3, the discrepancy in elevation between the leveling point on leveling point and the bridge under the slotted line
Utilize total station survey to obtain: the discrepancy in elevation h11 at the collimation center of leveling point C1 and total powerstation (4) under first line
The discrepancy in elevation h12 at the collimation center of leveling point D1 and total powerstation (4) on first bridge
The discrepancy in elevation h21 at the collimation center of leveling point C2 and total powerstation (4) under second line
The discrepancy in elevation h22 at the collimation center of leveling point D2 and total powerstation (4) on second bridge
Then under first line on the leveling point C1 and first bridge discrepancy in elevation h1 between the leveling point D1 be: h1=h11+h12
Under second line on the leveling point C2 and second bridge discrepancy in elevation h2 between the leveling point D2 be: h2=h21+h22
This leveling measuring method adopts the Trigonometric Leveling by Total Station transfer principle, utilizes high-precision intelligent total powerstation testing, and the introducing of not looking measurement in the high triangulated height of measuring appratus has improved measuring accuracy.
4, measure on first bridge discrepancy in elevation h3 between the leveling point D2 on the leveling point D1 and second bridge with electronic level, adopt closed leveling line to measure.
5, utilize following data, obtain on first bridge elevation of leveling point D2 on the leveling point D1 and second bridge respectively according to compensating computation:
Known vertical control point A and the elevation of vertical control point B,
Discrepancy in elevation hA1 under the vertical control point A and first line between the leveling point C1,
Discrepancy in elevation hA2 under the vertical control point A and second line between the leveling point C2,
Discrepancy in elevation hB1 under the vertical control point B and first line between the leveling point C1,
Discrepancy in elevation hB2 under the vertical control point B and second line between the leveling point C2,
Discrepancy in elevation h1 between the leveling point D1 on the leveling point C1 and first bridge under first line,
Discrepancy in elevation h2 between the leveling point D2 on the leveling point C2 and second bridge under second line,
Discrepancy in elevation h3 between the leveling point D2 on the leveling point D1 and second bridge on first bridge.
The railway engineering Surveying of Precise Control data handling system of iron the 4th surveying and designing institute in the compensating computation The software adopted, this system is the popular software in the high ferro precision measurement, so that the level data of measuring are carried out compensating computation.
Bridge method on the level that is measured as bridge point on a group that provides in the present embodiment, the scene can be by code requirement, and keeping at a certain distance away is provided with bridge point on other level at bridge pier along the line, and measuring method is identical with the present embodiment method.
Claims (2)
1. bridge measuring method on the second-class leveling point is characterized in that carrying out as follows:
A, respectively leveling point on the leveling point and bridge is set under the line
In the bottom of the first tested bridge pier (1), the side locations place that is positioned at the first tested bridge pier (1) is provided with leveling point C1 under first line; The top of the first tested bridge pier (1), be in said first line under leveling point D1 on first bridge is set on the beam body hold-down support end retaining Zha Qiang (3) at leveling point C1 opposite position place;
In the bottom of the second tested bridge pier (2), the side locations place that is positioned at the second tested bridge pier (2) is provided with leveling point C2 under second line; The top of the second tested bridge pier (2), be in said second line under leveling point D2 on second bridge is set on the beam body hold-down support end retaining Zha Qiang (3) at leveling point C2 opposite position place;
B, utilize to divide the known vertical control point A that is on the diverse location and known vertical control point B, come and go measurement pattern and obtain respectively to conform to line of level:
Discrepancy in elevation hA1 under the vertical control point A and first line between the leveling point C1;
Discrepancy in elevation hA2 under the vertical control point A and second line between the leveling point C2;
Discrepancy in elevation hB1 under the vertical control point B and first line between the leveling point C1;
Discrepancy in elevation hB2 under the vertical control point B and second line between the leveling point C2;
The discrepancy in elevation between the leveling point on leveling point and the bridge under c, the slotted line
Utilize total station survey to obtain: the discrepancy in elevation h11 at the collimation center of leveling point C1 and total powerstation (4) under first line
The discrepancy in elevation h12 at the collimation center of leveling point D1 and total powerstation (4) on first bridge
The discrepancy in elevation h21 at the collimation center of leveling point C2 and total powerstation (4) under second line
The discrepancy in elevation h22 at the collimation center of leveling point D2 and total powerstation (4) on second bridge
Then under first line on the leveling point C1 and first bridge discrepancy in elevation h1 between the leveling point D1 be: h1=h11+h12
Under second line on the leveling point C2 and second bridge discrepancy in elevation h2 between the leveling point D2 be: h2=h21+h22
D, measure on first bridge discrepancy in elevation h3 between the leveling point D2 on the leveling point D1 and second bridge with electronic level
E, utilize following data, obtain on first bridge elevation of leveling point D2 on the leveling point D1 and second bridge respectively according to compensating computation:
Known vertical control point A and the elevation of vertical control point B,
Discrepancy in elevation hA1 under the vertical control point A and first line between the leveling point C1,
Discrepancy in elevation hA2 under the vertical control point A and second line between the leveling point C2,
Discrepancy in elevation hB1 under the vertical control point B and first line between the leveling point C1,
Discrepancy in elevation hB2 under the vertical control point B and second line between the leveling point C2,
Discrepancy in elevation h1 between the leveling point D1 on the leveling point C1 and first bridge under first line,
Discrepancy in elevation h2 between the leveling point D2 on the leveling point C2 and second bridge under second line,
Discrepancy in elevation h3 between the leveling point D2 on the leveling point D1 and second bridge on first bridge.
2. bridge measuring method on the second-class leveling point according to claim 1 is characterized in that the said first tested bridge pier (1) and the second tested bridge pier (2) are at a distance of 150-250 rice.
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| CN103115609B (en) * | 2013-02-07 | 2016-12-28 | 中铁上海设计院集团有限公司 | Bridge triangulated height based on temperature transmission modification method |
| CN103245325B (en) * | 2013-04-23 | 2015-02-04 | 中国建筑股份有限公司 | Automatic floor elevation monitoring system and monitoring method thereof |
| CN103344214B (en) * | 2013-07-05 | 2015-06-24 | 中南大学 | 1.6-degree parabolic extralarge pier measuring and pier body linear control method |
| CN104316031A (en) * | 2014-11-21 | 2015-01-28 | 重庆市勘测院 | Antenna micro-motion equivalence precision elevation observation method |
| CN104567800B (en) * | 2014-12-26 | 2017-01-11 | 中铁大桥勘测设计院集团有限公司 | Transmitting and measuring method of sea-crossing height |
| CN109596094A (en) * | 2018-12-12 | 2019-04-09 | 中国十七冶集团有限公司 | A kind of installation aiding device and its construction method at control point and bench mark |
| CN111750826B (en) * | 2020-06-29 | 2022-07-26 | 华设设计集团股份有限公司 | Dynamic second-class river-crossing water level field operation data acquisition and processing method and system |
| CN114046770A (en) * | 2021-09-22 | 2022-02-15 | 中国铁建大桥工程局集团有限公司 | Marine settlement observation and measurement method |
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| CN101736662A (en) * | 2009-12-30 | 2010-06-16 | 中铁八局集团有限公司 | Network layout method of control foundation pile |
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| JP3089292B2 (en) * | 1996-12-17 | 2000-09-18 | 運輸省港湾技術研究所長 | Height measurement method and device using GPS |
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| CN101736662A (en) * | 2009-12-30 | 2010-06-16 | 中铁八局集团有限公司 | Network layout method of control foundation pile |
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