CN102607514B - Suspended digital leveling rod and measuring method using same - Google Patents
Suspended digital leveling rod and measuring method using same Download PDFInfo
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- CN102607514B CN102607514B CN201210078188.2A CN201210078188A CN102607514B CN 102607514 B CN102607514 B CN 102607514B CN 201210078188 A CN201210078188 A CN 201210078188A CN 102607514 B CN102607514 B CN 102607514B
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- leveling rod
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Abstract
A suspended digital leveling rod is formed by mounting a hanger 2 at the top of a common digital leveling rod. The hanger 2 is fixed to a rod body and is made of the material the same as that of a bottom 4 of the leveling rod. The hanger 2 comprises a bottom 3. The flatness of the bottom 3 is equal to that of the bottom of the leveling rod, and the bottom 3 of the hanger is level to the bottom 4 of the leveling rod. By means of the suspended digital leveling rod and a measuring method using the same, the defects in measurement with the leveling rod upended can be overcome. The leveling rod can be suspended on an observation label at a higher position achieve leveling, and operating efficiency can be improved while measuring precision can be guaranteed. The leveling rod is applicable to high-speed rail settlement observation, building settlement observation, tunnel leveling and the like. The more efficient method for leveling is provided.
Description
Technical field
The invention belongs to survey field, particularly a kind of digital levelling instrument and measuring method.
Background technology
The construction of high-speed railway, in order to reach designing requirement, often adopts Yi Qiaodai road mode.In high ferro settlement observation; the settlement observation staff of bridge pier is often embedded in top, crouching body both sides (conventionally apart from ground 2m-3m distance); be the protection that is conducive to again observation mark attractive in appearance like this; with markers, bury the higher unbalanced sedimentation in left and right of bridge pier that just is more conducive to find underground; but in traditional measurement of the level; what generally follow is that levelling pole bottom is erected at the principle of measuring on foot pin or impact point to be measured, so the current settlement observation staff mode of burying underground is made troubles to settlement observation.For this inconvenience, generally take at present two kinds of measures, wherein a kind of measure is that mark is transferred to pier shaft lower, but for fan-shaped pier, this tends to cause that levelling pole cannot stand directly, is forced to carry out bevel measurement; Another kind of measure is not change settlement observation cursor position, the measurement of falling chi.
But research discovery, bevel is measured and the measurement of falling chi all exists defect, is embodied in the precision and feasibility of measurement.
For bevel, measure, the angle of inclination of supposing bevel is a, when chi is vertical straight, instrument sight line high scale is h, according to simple geometric relationship, can obtain actual instrumentation sight line high scale is h1=h*1/cosa, the side-play amount of actual value and actual value is: Δ=(1-1/cos is * h a), hence one can see that, and the observational error that bevel brings is scale pitch angle and the high function of instrument.This imbody of rule in actual measurement that affect is: (1) sight line is high different, and Δ value is different.When circuit is observed, after can first doing forward sight, the levelling staff of adjacent two survey stations inclinations does backsight, and when two stations obtain the high difference of instrument, Δ is also different, causes adjacent two station bevel reading values different, and its result is exactly the mis-tie increase of route survey.(2) high for identical instrument, the pitch angle a of scale is different, and reading is also different.The settlement observation of every first phase is the height value that will obtain observation mark, if the observation scale angle of inclination of same period time is not different, obtains elevation and just contains rough error.Secondly, consider that tilting forward and back of levelling pole can bring scale tilting in the instrument visual field, this can cause that observation circuit mis-tie surpasses settlement observation poor demand limit.When oblique leveling staff, its bottom surface is not surface level, and placement location different readings in bottom surface are just different, and this impact can be embodied in t curve appearing S figure, makes curve map cannot correctly reflect target sedimentation situation.Meanwhile, have scholar to propose some bevels and measure the method correcting, but its operation is all comparatively complicated, is difficult for carrying out.Therefore, no matter bevel is measured in measuring accuracy or in operability, all can not meet the requirement of settlement observation.
For the measurement of falling chi, use exactly the measurement function of falling chi of digital level, upward by levelling pole bottom, vertical scale also makes bottom be close to the measuring method that tested point carries out measurement of the level simultaneously.But the operation of the measurement of falling chi is difficulty comparatively, is embodied in (1) and holds up chi personnel must lift scale, makes scale bottom surface closely touch observation mark, this is held up chi personnel to increase burden undoubtedly.(2), during the measurement of falling chi, the upset of scale bubble makes to hold up chi personnel to be extremely difficult for judging by bubble the vertical situation of scale.As above-mentioned difficulties, scale can closely not touched with observation mark once in a while, and the vertical situation of scale is poor, this can make the poor < < of the surpassing second-order levelling standard > > (hereinafter quoting with < < standard > >) of country of the poor and same rod reading of the survey station requirement of each survey station.For route survey, tend to cause that circuit echos poor (mis-tie) and surpasses < < standard > > requirement.Therefore, no matter the measurement of falling chi in measuring accuracy or in operability, all can not meet the requirement of settlement observation.
Summary of the invention
The object of the present invention is to provide a kind of levelling pole and corresponding leveling measuring method, existing measuring method defect is solved, efficiency and the precision of settlement observation are improved.
Device and method of the present invention can be widely used in high ferro settlement monitoring, particularly for the short fan type in plains region, standing grain type bridge pier, provides a kind of solution admirably.In addition the present invention can also be applied to tunnel survey, in building subsidence observation and other leveling work.
Technical scheme of the present invention is: a kind of digital levelling instrument.A suspender 2 (as shown in Figure 1) is equipped with at the back side, levelling pole top, and suspender keeps fixing with blade by self screw 5 and screw.Suspender comprises a polygon bottom surface 3, and the flatness of bottom surface 3 is identical with levelling pole bottom surface flatness, and suspender bottom surface 3 is parallel with levelling pole bottom surface 4 simultaneously.It is characterized in that: at ordinary numbers levelling pole top, fill a suspender.
The beneficial effect of this digital levelling instrument is: utilize suspender bottom surface 3, levelling pole can be suspended on the higher settlement observation staff in position and carry out measurement of the level.Staffman only need to hang over chi on observation mark, then makes leveling bubble between two parties chi righting, so makes full use of existing observation mark, alleviates again support personnel's labour intensity, improves and measures efficiency.
The feasibility of utilizing extension chi to measure depends on 2 points, (1): the making quality of suspender 2.The stability that comprises suspender 2, bottom surface 3 flatness, the parallel degree of bottom surface 3 and scale bottom surface 4.Wherein the making quality of suspender bottom surface 3 can affect greatly measurement of the level result, and its performance is a kind of accidental error.Bottom surface poor flatness tends to cause line of level mis-tie (it is poor to meet) larger.(2): the mensuration precision of constant K.Constant K is that scale bottom surface is to the distance of suspender bottom surface 3.Utilize and hang the error that the chi absolute altitude recording and the absolute altitude that normally metering system obtains exist fixed constant K.In settlement observation, with the absolute altitude that extension chi records, add that constant K is actual elevation.The error at measurment of K can cause systematic error to measurement of the level result, and its performance is to cause the systematic change of settlement observation staff height value.Therefore,, as long as guaranteed suspender making quality Accurate Measurement constant K, utilizing extension chi to carry out measurement of the level has the precision identical with conventional measurement of the level.
Accompanying drawing explanation
Fig. 1 is levelling pole suspender schematic diagram of the present invention
Fig. 2 is levelling pole structural representation of the present invention
Fig. 3 is leveling measuring method schematic diagram of the present invention
1. digital levelling instruments in figure, 2. suspender, 3. suspender bottom surface, 4. levelling pole bottom surface, 5. screw
Embodiment
As shown in Figure 2, digital levelling instrument 1 of the present invention, suspender 2 is equipped with at the back side, blade top, and suspender 2 comprises screw 5, by screw, realizes the fixing of suspender and blade, and suspender 2 adopts the material identical with levelling pole bottom surface 4.Suspender 2 comprises a polygon bottom surface 3, and the shape of bottom surface 3 takes full advantage of blade structure, has increased the area of bottom surface 3 when guaranteeing suspender stability.The flatness of bottom surface 3 is identical with levelling pole bottom surface flatness, and suspender bottom surface 3 is parallel with levelling pole bottom surface 4 simultaneously.So just can guarantee that suspender bottom surface 3 is surface levels when blade is vertical when utilizing extension chi to carry out measurement of the level.
In digital level, import to hang chi process of measurement,, when recalling when hanging chi process of measurement and carrying out reading, digital level can subtract constant K automatically to sight line high scale.For the first and second order leveling of higher level, need come and go survey, must guarantee to come and go the same observation mark of survey and adopt identical observation procedure, require every survey section is even number station simultaneously.Therefore for the high-speed railway settlement observation of being undertaken by second-order levelling requirement, while adopting the inventive method to carry out testing, need a pair of levelling pole, wherein one is hanging levelling rod.Hanging levelling rod is placed on to initial leveling point, from initial leveling point, starts to establish continuously station, by station observation.For the higher observation mark in position, hanging levelling rod is suspended on observation mark, hold up chi personnel to adjust blade by blade bottom circular bubble, make blade vertical.Another levelling pole stands on foot pin, and while carrying out the extension chi reading of every survey station, the extension chi measurement function that recalls digital level is observed, and while carrying out another staff reading, adopts digital level routine measurement function to observe.While running into the higher situation of continuous bridge pier settlement observation staff, adopt every two survey stations to survey an observation mark with extension chi, another chi is placed on ground all the time as the observation procedure of turning point, as shown in Figure 3.
Claims (5)
1. a suspension type digital levelling instrument, comprise a digital levelling instrument (1), a suspender (2) is equipped with at digital levelling instrument (1) back side, top, it is characterized in that filling a suspender at the back side, digital levelling instrument top, and suspender has bottom surface (3).
2. digital levelling instrument according to claim 1, is characterized in that described suspender (2) has 4 screws.
3. digital levelling instrument according to claim 1, is characterized in that described suspender (2) adopts the material identical with digital levelling instrument (1) bottom surface.
4. bottom surface according to claim 1 (3), is characterized in that bottom surface (3) is parallel with digital levelling instrument (1) bottom surface.
5. a method of carrying out measurement of the level for suspension type digital levelling instrument, in digital level, implant and hang chi process of measurement (4), during measurement of the level, recall and hang chi process of measurement (4), hang chi process of measurement (4) sight line high scale is subtracted to constant K, it is characterized in that implanting and hanging chi process of measurement in the original process of measurement of digital level, when calling this program, instrument can subtract constant K to sight line high scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210078188.2A CN102607514B (en) | 2012-03-22 | 2012-03-22 | Suspended digital leveling rod and measuring method using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210078188.2A CN102607514B (en) | 2012-03-22 | 2012-03-22 | Suspended digital leveling rod and measuring method using same |
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| Publication Number | Publication Date |
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| CN102607514A CN102607514A (en) | 2012-07-25 |
| CN102607514B true CN102607514B (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210078188.2A Expired - Fee Related CN102607514B (en) | 2012-03-22 | 2012-03-22 | Suspended digital leveling rod and measuring method using same |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277178A (en) * | 2015-09-16 | 2016-01-27 | 湖南科技学院 | Scale automatic vertical adjusting device for surveying and mapping |
| CN105865416A (en) * | 2016-05-20 | 2016-08-17 | 桂林理工大学 | Leveling rod suspended leveling method for settlement monitoring |
| CN108458686A (en) * | 2017-02-21 | 2018-08-28 | 山东科技大学 | A kind of new type of continuous beam bridge end bay Cast-in-Situ Segment drop measurement method |
| CN110307823A (en) * | 2019-06-19 | 2019-10-08 | 湘潭大学 | A kind of suspension type digital levelling instrument and measurement method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228527A (en) * | 1997-12-19 | 1999-09-15 | 株式会社索佳 | Electronic level and leveling rod for use in combination with the same |
| CN101788285A (en) * | 2010-02-01 | 2010-07-28 | 洛阳规划建筑设计有限公司 | Levelling staff capable of adjusting observation position and measurement technique thereof |
-
2012
- 2012-03-22 CN CN201210078188.2A patent/CN102607514B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228527A (en) * | 1997-12-19 | 1999-09-15 | 株式会社索佳 | Electronic level and leveling rod for use in combination with the same |
| CN101788285A (en) * | 2010-02-01 | 2010-07-28 | 洛阳规划建筑设计有限公司 | Levelling staff capable of adjusting observation position and measurement technique thereof |
Non-Patent Citations (2)
| Title |
|---|
| 王岩，岳建平等.三种高程传递方法的精度分析.《北京测绘》.2005,(第1期),全文. * |
| 罗小龙,臧德彦等.倒尺水准测量原理.《地矿测绘》.2005,第21卷(第4期),全文. * |
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| CN102607514A (en) | 2012-07-25 |
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