CN108334713B - Minimum concrete irrigation channel lining thickness calculation method based on table lookup method - Google Patents
Minimum concrete irrigation channel lining thickness calculation method based on table lookup method Download PDFInfo
- Publication number
- CN108334713B CN108334713B CN201810158094.3A CN201810158094A CN108334713B CN 108334713 B CN108334713 B CN 108334713B CN 201810158094 A CN201810158094 A CN 201810158094A CN 108334713 B CN108334713 B CN 108334713B
- Authority
- CN
- China
- Prior art keywords
- channel
- concrete
- minimum
- irrigation channel
- irrigation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000002262 irrigation Effects 0.000 title claims abstract description 36
- 238000003973 irrigation Methods 0.000 title claims abstract description 36
- 238000004364 calculation method Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002689 soil Substances 0.000 claims abstract description 13
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Optimization (AREA)
- Geometry (AREA)
- Computational Mathematics (AREA)
- Data Mining & Analysis (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Analysis (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Architecture (AREA)
- Evolutionary Biology (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- Bioinformatics & Computational Biology (AREA)
- Operations Research (AREA)
- Algebra (AREA)
- Civil Engineering (AREA)
- Probability & Statistics with Applications (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Evolutionary Computation (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a minimum concrete canal lining thickness calculation method based on a table look-up method, which is characterized by comprising the following steps of: step a, solving the design flow of an irrigation channel by using an open channel uniform flow formula according to the fact that when water flows in the irrigation channel, the water depth, the section average flow velocity and the flow velocity distribution of each section are unchanged along the flow direction; b, inquiring the lowest temperature of the frozen soil layer of the hillside of the irrigation channel according to local meteorological data; and c, determining the concrete mark and the minimum concrete lining thickness. The minimum concrete channel lining thickness calculation method can rapidly obtain the minimum concrete channel lining thickness through the query table according to the irrigation channel design flow and the minimum negative temperature, and is very convenient for designers to use.
Description
Technical Field
The invention relates to the technical field of concrete lining thickness calculation, in particular to a minimum concrete canal lining thickness calculation method based on a table look-up method, and belongs to the technical field of agricultural water conservancy projects.
Background
Currently, the study on the thickness of concrete lining of irrigation channels is still weak. The traditional formula calculation method for the concrete lining thickness of the irrigation channel is complicated, and only ranges are given in water conservancy specifications, so that an accurate numerical value is not provided. In summary, in terms of calculation methods, implicit functions or calculus are mostly adopted to calculate the lining thickness; from the calculation results, most of the results only show the lining thickness value which meets the safety requirement.
Therefore, it is very urgent to provide an improved technical solution to solve the above problems.
Disclosure of Invention
The invention aims to provide a method for calculating the minimum concrete channel lining thickness based on a table look-up method, which can accurately and efficiently solve the concrete lining thickness of an irrigation channel, ensure the frost heaving stability of the channel and improve the water-saving reconstruction benefit of an irrigation area.
The invention discloses a minimum concrete canal lining thickness calculation method based on a table look-up method, which comprises the following steps of:
step a, solving the design flow of an irrigation channel by using an open channel uniform flow formula according to the fact that when water flows in the irrigation channel, the water depth, the section average flow velocity and the flow velocity distribution of each section are unchanged along the flow direction;
b, inquiring the lowest temperature of the frozen soil layer of the hillside of the irrigation channel according to local meteorological data;
and c, determining the concrete mark and the minimum concrete lining thickness.
The step a specifically comprises the following steps:
the irrigation channel water-passing section is determined according to soil conditions of various regions, the hard soil generally mainly comprises a trapezoid and a rectangular section, a circular water-passing section adopting building engineering is also adopted, the trapezoid section suitable for the irrigation area in the cold region is selected, and the flow calculation method is as follows:
in the formula:Qto design the flow rate (m 3/s）；AIs the cross-sectional area of the channel (m 2）；CFor the talent of talent (m 0.5/s）；RIs the hydraulic radiusm）；bThe width of the trench bottom (m) (ii) a h is channel depth (m）；xThe wet period is adopted;iis the channel longitudinal section gradient;nthe roughness of the channel;mis the slope coefficient.
The step b specifically comprises the following steps:
and measuring the lowest temperature of the frozen soil layer of the shade slope of the irrigation channel in the field, wherein the range is between 0 and-30 ℃.
The step c specifically comprises the following steps:
the thickness of the concrete lining of the irrigation canal is shown in the following table:
the invention has the beneficial effects that:
the minimum concrete channel lining thickness calculation method can rapidly obtain the minimum concrete channel lining thickness through the query table according to the irrigation channel design flow and the minimum negative temperature, and is very convenient for designers to use.
Drawings
Fig. 1 is a frame diagram of the present invention.
Detailed Description
The invention is further elucidated with reference to the drawings and the detailed description. It should be understood that the following detailed description is illustrative of the invention only and is not intended to limit the scope of the invention.
The invention discloses a minimum concrete canal lining thickness calculation method based on a table look-up method, which comprises the following steps of:
step a, solving the design flow of an irrigation channel by using an open channel uniform flow formula according to the fact that when water flows in the irrigation channel, the water depth, the section average flow velocity and the flow velocity distribution of each section are unchanged along the flow direction;
b, inquiring the lowest temperature of the frozen soil layer of the hillside of the irrigation channel according to local meteorological data;
and c, determining the concrete mark and the minimum concrete lining thickness.
The step a specifically comprises the following steps:
the irrigation channel water-passing section is determined according to soil conditions of various regions, the hard soil generally mainly comprises a trapezoid and a rectangular section, a circular water-passing section adopting building engineering is also adopted, the trapezoid section suitable for the irrigation area in the cold region is selected, and the flow calculation method is as follows:
in the formula:Qto design the flow rate (m 3/s）；AIs the cross-sectional area of the channel (m 2）；CFor the talent of talent (m 0.5/s）；RIs the hydraulic radiusm）；bThe width of the trench bottom (m) (ii) a h is channel depth (m）；xThe wet period is adopted;iis the channel longitudinal section gradient;nthe roughness of the channel;mis the slope coefficient.
The step b specifically comprises the following steps:
and measuring the lowest temperature of the frozen soil layer of the shade slope of the irrigation channel in the field, wherein the range is between 0 and-30 ℃.
The step c specifically comprises the following steps:
the thickness of the concrete lining of the irrigation canal is shown in the following table:
the invention is illustrated in detail below:
1. selecting a clear river irrigation area of Heilongjiang provinceThe first main channel is used as the optimization object, the cross section of the channel is in the shape of a trapezoid cross section, and the specific drop of the channel bottom of the channel section isi1/2000, the trench is not lined and the roughness is not increasednThe value is 0.0275, the coefficient of the side slope is 1.5, the bottom width is 1m, the designed water depth is 0.49m, and the maximum flow rate of the irrigation and drainage channel which can pass through is calculatedQ=0.32 m3/s。
2. Actually measuring the lowest temperature of the frozen soil layer of the hillside to be 25 ℃ below zero.
3. Looking up the table in the thirteen rows, the thickness of the concrete lining of the irrigation channel is 13.5cm, and the concrete is labeled C15.
The technical means disclosed by the scheme of the invention are not limited to the technical means disclosed by the technical means, and the technical scheme also comprises the technical scheme formed by any combination of the technical characteristics.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. A minimum concrete irrigation channel lining thickness calculation method based on a table lookup method is characterized by comprising the following steps:
step a: according to the method, when water flows in an irrigation channel, the water depth, the section average flow velocity and the flow velocity distribution of each section are unchanged along the flow direction, and the design flow of the irrigation channel is solved by the open channel uniform flow formula;
step b: inquiring the minimum temperature of the frozen soil layer of the hillside of the irrigation channel according to local meteorological data;
step c: determining the concrete grade and the minimum concrete lining thickness by looking up a table, wherein the looked-up table is as follows:
2. the method for calculating the minimum thickness of the concrete irrigation canal lining based on the table lookup method as claimed in claim 1, wherein said step a specifically comprises:
the water passing section of the irrigation channel is determined according to the soil conditions of various regions, a trapezoidal, rectangular or circular water passing section is adopted, and the flow calculation method is as follows:
in the formula: q is the design flow (m)3S); a is the water passing cross-sectional area (m) of the channel2) (ii) a C is the metabolization coefficient (m)0.5S); r is hydraulic radius (m); i is the channel longitudinal section gradient.
3. The method for calculating the minimum thickness of the concrete irrigation canal lining based on the table lookup method as claimed in claim 1, wherein said step b specifically comprises:
and measuring the lowest temperature of the frozen soil layer of the shade slope of the irrigation channel in the field, wherein the range is between 0 and-30 ℃.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108334713A CN108334713A (en) | 2018-07-27 |
| CN108334713B true CN108334713B (en) | 2020-02-07 |
Family
ID=62929783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810158094.3A Expired - Fee Related CN108334713B (en) | 2018-02-25 | 2018-02-25 | Minimum concrete irrigation channel lining thickness calculation method based on table lookup method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108334713B (en) |
Family Cites Families (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 |
| NL1006020C2 (en) * | 1997-05-12 | 1998-11-13 | Schellevis Beton B V | Plate-shaped element, irrigation system formed therewith and method for applying such an irrigation system. |
| 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 |
| CN105447229B (en) * | 2015-11-13 | 2019-02-22 | 石河子大学 | Winter conveyance canal side slope concrete lining course frost heaving resistant destroys Method for Checking |
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN108334713A (en) | 2018-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110672163B (en) | Method for testing ice period flow of canal in cold region | |
| CN105426568A (en) | Method for estimating amount of soil loss in Karst area | |
| CN104563060B (en) | Take into account dam, regulate and store, the embankment of function of draining flooded fields and the method for improving water environment | |
| Guang et al. | Transformation of surface water and groundwater and water balance in the agricultural irrigation area of the Manas River Basin, China | |
| CN205529748U (en) | Concrete brick that permeates water with cooling function | |
| Cui et al. | Soil erosion along a long slope in the gentle hilly areas of black soil region in Northeast China | |
| CN108334713B (en) | Minimum concrete irrigation channel lining thickness calculation method based on table lookup method | |
| CN110232479A (en) | A kind of city flood control by reservoir regulation compensation optimizing dispatching method | |
| CN103590476A (en) | Design construction method of low greenbelts alleviating floods | |
| CN205314063U (en) | Convenient irrigation and drainage gate in paddy field pond ridge | |
| Sorman et al. | Estimation of wadi recharge from channel losses in Tabalah Basin, Saudi Arabia | |
| CN110287595A (en) | A kind of city different underlying surface mitigation effect analysis method | |
| Hollanders et al. | Drainage and salinity assessment in the Huinong canal irrigation district, Ningxia, China | |
| WO2024046326A1 (en) | Water and soil resource comprehensive improvement method for loess hilly and gully region channels | |
| CN103366309B (en) | Application of Urban Rain Water scale determination method based on low impact exploitation | |
| Mahmoud et al. | The effect of irrigation and drainage management on crop yield in the Egyptian Delta: Case of El-Baradi area | |
| Paudel | Role of sediment in the design and management of irrigation canals: Sunsari Morang Irrigation Scheme, Nepal | |
| CN204282321U (en) | A kind of simple and easy field irrigation intake apparatus | |
| CN208167680U (en) | A kind of rice field field storage rain automatic control discharge outlet door | |
| CN205444131U (en) | Distribution type dam body structure | |
| CN208981309U (en) | A kind of punched-type protecting film runoff interception structure | |
| CN104268409A (en) | Calculation method for ground surface water collection time | |
| CN112989579B (en) | Dynamic calculation method for slope soil lateral drainage coefficient | |
| CN110199605A (en) | A kind of construction method of the ridge leakage preventing structure of paddy field water conservation | |
| CN204551373U (en) | Take into account dam, regulate and store, the embankment of function of draining flooded fields |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |