CN105825043A - Method for building relation model between turbidity and single sand - Google Patents
Method for building relation model between turbidity and single sand Download PDFInfo
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- CN105825043A CN105825043A CN201610136141.5A CN201610136141A CN105825043A CN 105825043 A CN105825043 A CN 105825043A CN 201610136141 A CN201610136141 A CN 201610136141A CN 105825043 A CN105825043 A CN 105825043A
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Abstract
The invention discloses a method for building a relation model between turbidity and single sand. The method adopts a water turbidity meter, and comprises the following steps: step 1, selecting a site as a monitoring point according to the following requirements: 1) the reach of the site is straight and has no branch flow, flow cannot ice, and silt in the flow is only suspended sediment; 2) a monitoring section is U-shaped or V-shaped; 3) a water level approaches to the historical lowest level; 4) the monitoring point is 5 to 10 meters away from water; step 2, carrying out comparing measurement, that is, on an original measurement single sand section, averaging single sand with a vertical line of mixture of a water sample being 0.2 in position relative to an original measurement single sand vertical line and another water sample being 0.8 in position relative to the original measurement single sand vertical line, wherein the water turbidity meter is arranged on a selected vertical line fixing point, a probe of the water turbidity meter is fixed on a point being 0.5m underwater for comparing measurement, and comparing measurement is carried out for 31 times or more; step 3, building the relation model between turbidity and single sand, wherein the relational expression is CS equal to KRC. The built relation model can be used for monitoring suspended load index sediment concentration automatically, the monitoring precision and the efficiency are high, and the technical problem of slow and less hydrological information sources is solved.
Description
Technical field
The present invention relates to hydrologic monitoring field, especially design a kind of method setting up turbidity and single husky relational model.
Background technology
The turbidity of water causes because of fine particle, relevant with the mass concentration of float, the size of granule, shape, refractive index etc..At natural river water body, the size of turbidity is relevant to the silt content size of water body, and turbidity is little, then silt content is little；Turbidity is big, then silt content is big.As can be seen here, the turbidity of water and silt content have close positive correlation.
At present, the turbidity of water and the relation of silt content are all artificial tests, through water sampling, filter, dry, four processes of weighing, there is risk, heavy, time-consuming, the problem of effort, particularly water sampling is with surveying ship to river main flow water sampling, risking current urgency, the risk water sampling of drift, night, water sampling difficulty was bigger.The shortcoming of these technology causes monitoring sediment not adapt to hydrographic informationization development, restricts hydrographic information service ability.
Summary of the invention
Present invention aims to drawbacks described above of the prior art, a kind of method setting up turbidity and single husky relational model is provided, by turbidity and single husky relational model, silt content of river can be realized and automatically monitor, and measurement accuracy is high, solve the technical problem that hydrographic information source is slow and few.
For achieving the above object, present invention employs following technical scheme: a kind of method setting up turbidity and single husky relational model, described method uses water turbidity meter, and the method comprises the steps:
The first step, monitoring point addressing, monitoring point addressing requires:
5) section, place is straight, and without tributary, current can not freeze, and the silt in current only limits suspended sediment；
6) monitoring section is " U " or " V " font；
7) close to lowest water level over the years；
8) at water bank 5～10 meters；
Second step, ratio survey, survey husky section former, single husky vertical line is surveyed relative to the position 0.2 and 0.8 WAWQ sample average Dan Sha of mixed vertical line with former, water turbidity meter is at selected vertical line fixing point, and the probe of water turbidity meter is fixed on depth of water 0.5m point and takes ratio survey, and ratio is surveyed more than 31 times；
3rd step, sets up turbidity and single husky relational model, and its relational expression is: CS=KRC；
In formula, CSFor corresponding single sample silt content, unit: kg/m3；
RCFor single sample turbidity, unit: degree, FTU；
K is single sample turbidity coefficient.
The turbidity of the turbidity mentioned by the present invention, i.e. water, generally refers to the obstruction degree occurred when light is passed through by float in water.Float in water is usually earth, sand grains, fine Organic substance and inorganic matter, plankton, microorganism and colloidal substance etc..Units of measurement used by iso standard is FTU (turbidity unit), FTU with NTU (nephelometric units) is consistent.
Suspended load mentioned by the present invention, refers to the comprehensive function result that in current, silt is conducted oneself with dignity by impulsive force and the silt of flowing water, makes to move as suspended load in relatively fine deposit water in suspension and with current.
Dan Sha mentioned by the present invention, refers to unit water sample silt content, and its abbreviation is the widespread consensus of those skilled in the art, and its unit is: g/m3 or kg/m3.
Compared to prior art, a kind of method of offer is provided, the method can set up turbidity and single husky relational model, utilizes this relational model can change river load test form, artificial test is changed over monitoring automatically, single husky survey time by every day 1-4 time, bringing up to 288 times (within every 5 minutes, gathering a secondary data), quantity of information is 72 times of artificial test, improves work efficiency, improve monitoring precision simultaneously, solve the technical problem that hydrographic information source is slow and few.
Accompanying drawing explanation
Fig. 1 is that hydrometric station, Nanning 60m vertical line turbidity surveys sectional schematic diagram with Dan Sha ratio.
Fig. 2 is hydrometric station, Nanning 60m vertical line turbidity and single husky graph of a relation.
Detailed description of the invention
Below in conjunction with preferred embodiment and accompanying drawing thereof, technical solution of the present invention is further non-limitingly described in detail.
At hydrometric station, Nanning, using the multi-parameter water quality transmissometer that Hash company of the U.S. produces, fixing ship of surveying on start point distance 60m vertical line, its vertical line turbidity surveys section as shown in Figure 1 with Dan Sha ratio.The probe of water turbidity meter is fixed at depth of water 0.5m point and carries out turbidity and manually test Dan Sha, online turbidity takes 5～35 minutes turbidity data averages, and ratio is surveyed 33 times, draws the 60m vertical line turbidity shown in Fig. 2 and single husky graph of a relation, through calibration, turbidity is C with single husky relational modelS=0.00071RC, correlation coefficient r=0.9976, system deviation 0.4%, standard deviation 6.40%, qualification rate 100%.Testing above-mentioned conclusion calculating, result is as shown in table 1,
Table 1:60m vertical line turbidity surveys table with single husky relation line school
Table 2: hydrometric station, Nanning 60m vertical line turbidity～the single husky relation curve inspection computational chart of actual measurement
Table 3: hydrometric station, Nanning 60m vertical line turbidity and single husky relationship error computational chart
In sum, the turbidity relational model husky with list utilizing the method for the present invention to set up, the technology requirement of country's " suspended sediment test specification " is met after empirical tests, change traditional suspended load list sample silt content test form, thorough liberation from artificial sample, precipitation process, sand-like drying, the heavy operation calculated of weighing, decrease working strength, decrease test cost, improve work efficiency.And applying water turbidity meter to carry out suspended load list sample silt content automatically to monitor, gather silt quantity of information many, report and submit in real time, transmission is quick, the soil erosion to grasping section provides a large amount of science data.
It is pointed out that above-mentioned preferred embodiment is only technology design and the feature of the explanation present invention, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this.All equivalence changes made according to spirit of the invention or modification, all should contain within protection scope of the present invention.
Claims (1)
1. the method setting up turbidity and single husky relational model, it is characterised in that described method uses water turbidity meter, and the method comprises the steps:
The first step, monitoring point addressing, monitoring point addressing requires:
1) section, place is straight, and without tributary, current can not freeze, and the silt in current only limits suspended sediment；
2) monitoring section is " U " or " V " font；
3) close to lowest water level over the years；
4) at water bank 5～10 meters；
Second step, ratio survey, survey husky section former, single husky vertical line is surveyed relative to the position 0.2 and 0.8 WAWQ sample average Dan Sha of mixed vertical line with former, water turbidity meter is at selected vertical line fixing point, and the probe of water turbidity meter is fixed on depth of water 0.5m point and takes ratio survey, and ratio is surveyed more than 31 times；
3rd step, sets up turbidity and single husky relational model, and its relational expression is: CS=KRC。
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478792A (en) * | 2017-08-07 | 2017-12-15 | 北京美科华仪科技有限公司 | The sensor-type online survey method for determining sand of turbidity |
| CN107894381A (en) * | 2017-12-29 | 2018-04-10 | 广州和时通电子科技有限公司 | Husky apparatus and method are surveyed in a kind of southern river |
| CN107991262A (en) * | 2017-12-29 | 2018-05-04 | 广州和时通电子科技有限公司 | A kind of infrared optics formula under low suspended load silt content surveys husky apparatus and method automatically |
| CN108037052A (en) * | 2017-12-29 | 2018-05-15 | 广州和时通电子科技有限公司 | Husky apparatus and method are surveyed in a kind of hydrometric station automatically with infrared optics formula |
| CN108037053A (en) * | 2017-12-29 | 2018-05-15 | 广州和时通电子科技有限公司 | A kind of intelligence hydrology surveys husky apparatus and method |
| CN108037051A (en) * | 2017-12-29 | 2018-05-15 | 广州和时通电子科技有限公司 | A kind of intelligent cleaning formula surveys husky apparatus and method |
| CN108037054A (en) * | 2017-12-29 | 2018-05-15 | 广州和时通电子科技有限公司 | A kind of husky apparatus and method of automatic survey equipped with orientation detection sensor |
| CN113552027A (en) * | 2021-07-28 | 2021-10-26 | 长江水利委员会水文局 | Rapid test method for sailing suspended load sediment |
| CN115112536A (en) * | 2022-07-04 | 2022-09-27 | 长江水利委员会水文局长江下游水文水资源勘测局(长江水利委员会水文局长江下游水环境监测中心) | Rapid measurement method for suspended load sand content |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107478792A (en) * | 2017-08-07 | 2017-12-15 | 北京美科华仪科技有限公司 | The sensor-type online survey method for determining sand of turbidity |
| CN108037054A (en) * | 2017-12-29 | 2018-05-15 | 广州和时通电子科技有限公司 | A kind of husky apparatus and method of automatic survey equipped with orientation detection sensor |
| CN108037052B (en) * | 2017-12-29 | 2024-02-02 | 广州和时通电子科技有限公司 | Infrared optical automatic sand measuring device and method for hydrologic station |
| CN108037052A (en) * | 2017-12-29 | 2018-05-15 | 广州和时通电子科技有限公司 | Husky apparatus and method are surveyed in a kind of hydrometric station automatically with infrared optics formula |
| CN108037053A (en) * | 2017-12-29 | 2018-05-15 | 广州和时通电子科技有限公司 | A kind of intelligence hydrology surveys husky apparatus and method |
| CN108037051A (en) * | 2017-12-29 | 2018-05-15 | 广州和时通电子科技有限公司 | A kind of intelligent cleaning formula surveys husky apparatus and method |
| CN107894381A (en) * | 2017-12-29 | 2018-04-10 | 广州和时通电子科技有限公司 | Husky apparatus and method are surveyed in a kind of southern river |
| CN108037053B (en) * | 2017-12-29 | 2024-02-02 | 广州和时通电子科技有限公司 | Intelligent hydrologic survey Sand device and method |
| CN108037054B (en) * | 2017-12-29 | 2024-02-02 | 广州和时通电子科技有限公司 | Automatic sand measuring device and method with azimuth detection sensor |
| CN107991262B (en) * | 2017-12-29 | 2023-08-29 | 广州和时通电子科技有限公司 | Infrared optical automatic sand measuring device and method under low suspended load sand content |
| CN107894381B (en) * | 2017-12-29 | 2024-02-02 | 广州和时通电子科技有限公司 | South is for river Sand measuring device and method |
| CN107991262A (en) * | 2017-12-29 | 2018-05-04 | 广州和时通电子科技有限公司 | A kind of infrared optics formula under low suspended load silt content surveys husky apparatus and method automatically |
| CN108037051B (en) * | 2017-12-29 | 2024-02-02 | 广州和时通电子科技有限公司 | Intelligent cleaning type sand measuring device and method |
| CN113552027A (en) * | 2021-07-28 | 2021-10-26 | 长江水利委员会水文局 | Rapid test method for sailing suspended load sediment |
| CN115112536A (en) * | 2022-07-04 | 2022-09-27 | 长江水利委员会水文局长江下游水文水资源勘测局(长江水利委员会水文局长江下游水环境监测中心) | Rapid measurement method for suspended load sand content |
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Application publication date: 20160803 |