CN108334713A - A kind of minimum concrete irrigation canal lining thickness computational methods based on look-up table - Google Patents
A kind of minimum concrete irrigation canal lining thickness computational methods based on look-up table Download PDFInfo
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- CN108334713A CN108334713A CN201810158094.3A CN201810158094A CN108334713A CN 108334713 A CN108334713 A CN 108334713A CN 201810158094 A CN201810158094 A CN 201810158094A CN 108334713 A CN108334713 A CN 108334713A
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- 230000002262 irrigation Effects 0.000 title claims abstract description 35
- 238000003973 irrigation Methods 0.000 title claims abstract description 35
- 238000000205 computational method Methods 0.000 title claims description 8
- 239000002689 soil Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000004907 flux Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
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- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis
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Abstract
The minimum concrete canal lining THICKNESS CALCULATION method based on look-up table that the invention discloses a kind of, which is characterized in that include the following steps：When step a, being flowed in irrigation canal according to flow, the depth of water, mean velocity in section and the velocity flow profile of each section are all constant along flowing to, and this open channel uniform flow formula solves irrigation canal design discharge；Step b, according to local meteorological data, the minimum temperature of irrigation canal Schattenseite frozen soil layer is inquired；Step c, concrete grade, and minimum concrete lining thickness are determined.The minimum concrete canal lining THICKNESS CALCULATION method of the present invention, can be according to irrigation canal design discharge, minimum negative temperature, the minimum concrete canal lining thickness that can be obtained rapidly by enquiry form, and designer is very convenient to use.
Description
Technical field
The present invention relates to concrete lining THICKNESS CALCULATION technical field more particularly to a kind of minimum coagulations based on look-up table
Native canal lining THICKNESS CALCULATION method, belongs to agricultural water conservancy project technical field.
Background technology
Currently, also very weak about the research of irrigation canal concrete lining thickness.Traditional irrigation canal concrete
The formula computational methods of lining thickness are lengthy and tedious, and what is also only provided in water conservancy specification is range, without exact value.It summarizes
From the point of view of, from computational methods, implicit function is mostly used greatly or calculus inquires into lining thickness；It is only mostly from calculating achievement
Give the lining thickness numerical value for meeting safety.
It is therefore proposed that a kind of improved technical solution just seems extremely urgent to solve the above problems.
Invention content
The minimum concrete canal lining THICKNESS CALCULATION method based on look-up table that the object of the present invention is to provide a kind of, accurately
Irrigation canal concrete lining thickness is efficiently solved, ensures that canal frost heave is stablized, water-saving transformation in irrigation district benefit can also be improved.
The minimum concrete canal lining THICKNESS CALCULATION method based on look-up table that the invention discloses a kind of, including following step
Suddenly：
When step a, being flowed in irrigation canal according to flow, the depth of water, mean velocity in section and velocity flow profile all edges of each section
Flow to constant, this open channel uniform flow formula solution irrigation canal design discharge；
Step b, according to local meteorological data, the minimum temperature of irrigation canal Schattenseite frozen soil layer is inquired；
Step c, concrete grade, and minimum concrete lining thickness are determined.
The step a is specifically included：
The irrigation canal cross-section of river is determined according to the soil property situation of various regions, hard general based on ladder type, square type of soil property,
There is the round cross-section of river using building engineering, the more applicable ladder type section in this selection cold ground irrigated area, method of calculating flux
Such as following formula：
In formula：QFor design discharge（m 3/s）；AFor device for channel discharge cross section area（m 2）；CTo thank to ability coefficient（m 0.5/s）；RFor water
Power radius（m）；bFor channel bottom width（m）；H is canal water depth（m）；xFor wetted perimeter；iIt is that profile of canal ratio drops；nIt is rough for channel
Rate；mFor slope coefficient.
The step b is specifically included：
The minimum temperature of field survey irrigation canal Schattenseite frozen soil layer, range is between 0 ~ -30 DEG C.
The step c is specifically included：
Irrigation canal concrete lining thickness is as shown in the table：
。
Beneficial effects of the present invention：
The minimum concrete canal lining THICKNESS CALCULATION method of the present invention, can be according to irrigation canal design discharge, minimum subzero temperature
Degree, the minimum concrete canal lining thickness that can be obtained rapidly by enquiry form, designer are very convenient to use.
Description of the drawings
Fig. 1 is the frame diagram of the present invention.
Specific implementation mode
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated.It should be understood that following specific implementation modes are only
For illustrating the present invention rather than limiting the scope of the invention.
The minimum concrete canal lining THICKNESS CALCULATION method based on look-up table that the invention discloses a kind of, including following step
Suddenly：
When step a, being flowed in irrigation canal according to flow, the depth of water, mean velocity in section and velocity flow profile all edges of each section
Flow to constant, this open channel uniform flow formula solution irrigation canal design discharge；
Step b, according to local meteorological data, the minimum temperature of irrigation canal Schattenseite frozen soil layer is inquired；
Step c, concrete grade, and minimum concrete lining thickness are determined.
Step a is specifically included：
The irrigation canal cross-section of river is determined according to the soil property situation of various regions, hard general based on ladder type, square type of soil property,
There is the round cross-section of river using building engineering, the more applicable ladder type section in this selection cold ground irrigated area, method of calculating flux
Such as following formula：
In formula：QFor design discharge（m 3/s）；AFor device for channel discharge cross section area（m 2）；CTo thank to ability coefficient（m 0.5/s）；RFor water
Power radius（m）；bFor channel bottom width（m）；H is canal water depth（m）；xFor wetted perimeter；iIt is that profile of canal ratio drops；nIt is rough for channel
Rate；mFor slope coefficient.
Step b is specifically included：
The minimum temperature of field survey irrigation canal Schattenseite frozen soil layer, range is between 0 ~ -30 DEG C.
Step c is specifically included：
Irrigation canal concrete lining thickness is as shown in the table：
。
Concrete example illustrates the present invention below：
1. selecting the first trunk canal of Heilongjiang Province Qinghe irrigated area object as an optimization, canal cross section shape is trapezoidal cross-section, the canal section
Canal bottom is than dropiIt is 1/2000, the non-lining cutting of channel, roughnessnValue is 0.0275, slope coefficient 1.5, bottom width 1m, designs water
Deep 0.49m, calculating the irrigation and drainage channels can be by maximum stream flowQ=0.32 m3/s。
2. surveying -25 DEG C of the minimum temperature of Schattenseite frozen soil layer.
3. the 13rd row of tabling look-up, irrigation canal concrete lining thickness is 13.5cm, concrete grade C15.
The technical means disclosed in the embodiments of the present invention is not limited to the technical means disclosed in the above technical means, and further includes
By the above technical characteristic arbitrarily the formed technical solution of combination.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property the range and different contents being limited on specification, it is necessary to its technical scope is determined according to right.
Claims (4)
1. a kind of minimum concrete irrigation canal lining thickness computational methods based on look-up table, which is characterized in that including following
Step：
When step a, being flowed in irrigation canal according to flow, the depth of water, mean velocity in section and velocity flow profile all edges of each section
Flow to constant, this open channel uniform flow formula solution irrigation canal design discharge；
Step b, according to local meteorological data, the minimum temperature of irrigation canal Schattenseite frozen soil layer is inquired；
Step c, concrete grade, and minimum concrete lining thickness are determined.
2. a kind of minimum concrete irrigation canal lining thickness computational methods based on look-up table according to claim 1,
It is characterized in that, the step a is specifically included：
The irrigation canal cross-section of river is determined according to the soil property situation of various regions, hard general based on ladder type, square type of soil property,
There is the round cross-section of river using building engineering, the more applicable ladder type section in this selection cold ground irrigated area, method of calculating flux
Such as following formula：
In formula：QFor design discharge（m 3/s）；AFor device for channel discharge cross section area（m 2）；CTo thank to ability coefficient（m 0.5/s）；RFor waterpower
Radius（m）；bFor channel bottom width（m）；H is canal water depth（m）；xFor wetted perimeter；iIt is that profile of canal ratio drops；nIt is rough for channel
Rate；mFor slope coefficient.
3. a kind of minimum concrete irrigation canal lining thickness computational methods based on look-up table according to claim 1,
It is characterized in that, the step b is specifically included：
The minimum temperature of field survey irrigation canal Schattenseite frozen soil layer, range is between 0 ~ -30 DEG C.
4. a kind of minimum concrete irrigation canal lining thickness computational methods based on look-up table according to claim 1,
It is characterized in that, the step c is specifically included：
Irrigation canal concrete lining thickness is as shown in the table：
。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810158094.3A CN108334713B (en) | 2018-02-25 | 2018-02-25 | Minimum concrete irrigation channel lining thickness calculation method based on table lookup method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810158094.3A CN108334713B (en) | 2018-02-25 | 2018-02-25 | Minimum concrete irrigation channel lining thickness calculation method based on table lookup method |
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| CN108334713A true CN108334713A (en) | 2018-07-27 |
| CN108334713B CN108334713B (en) | 2020-02-07 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4015366A (en) * | 1975-04-11 | 1977-04-05 | Advanced Decision Handling, Inc. | Highly automated agricultural production system |
| DE29808561U1 (en) * | 1997-05-12 | 1998-10-01 | Schellevis Beton B.V., Dussen | Plate-shaped element and irrigation system consisting of it |
| CN1530638A (en) * | 2003-03-13 | 2004-09-22 | 山东农业大学 | Method and device for monitornig and accumulating continuous uniform flow in open channel |
| JP2007046414A (en) * | 2005-08-12 | 2007-02-22 | Mitsubishi Chem Mkv Co | Lining structure of concrete-made structure |
| CN201485824U (en) * | 2009-05-21 | 2010-05-26 | 朱奎 | Seepage-proof lining |
| CN105447229A (en) * | 2015-11-13 | 2016-03-30 | 石河子大学 | Method for checking anti-frost heaving damage of slope concrete lining layer of water conveyance canal in winter |
| CN105719053A (en) * | 2016-01-13 | 2016-06-29 | 天津中科智能识别产业技术研究院有限公司 | Disaster early warning and information issuing system based on multiple terminals |
-
2018
- 2018-02-25 CN CN201810158094.3A patent/CN108334713B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4015366A (en) * | 1975-04-11 | 1977-04-05 | Advanced Decision Handling, Inc. | Highly automated agricultural production system |
| DE29808561U1 (en) * | 1997-05-12 | 1998-10-01 | Schellevis Beton B.V., Dussen | Plate-shaped element and irrigation system consisting of it |
| CN1530638A (en) * | 2003-03-13 | 2004-09-22 | 山东农业大学 | Method and device for monitornig and accumulating continuous uniform flow in open channel |
| JP2007046414A (en) * | 2005-08-12 | 2007-02-22 | Mitsubishi Chem Mkv Co | Lining structure of concrete-made structure |
| CN201485824U (en) * | 2009-05-21 | 2010-05-26 | 朱奎 | Seepage-proof lining |
| CN105447229A (en) * | 2015-11-13 | 2016-03-30 | 石河子大学 | Method for checking anti-frost heaving damage of slope concrete lining layer of water conveyance canal in winter |
| CN105719053A (en) * | 2016-01-13 | 2016-06-29 | 天津中科智能识别产业技术研究院有限公司 | Disaster early warning and information issuing system based on multiple terminals |
Non-Patent Citations (2)
| Title |
|---|
| 刘东 等: "北方灌区混凝土衬砌渠道断面优化及参数分析", 《农业工程学报》 * |
| 宋玲 等: "混凝土防渗渠道冬季输水运行中冻胀与抗冻胀力验算", 《农业工程学报》 * |
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