CN201843125U - Channel structure for collecting slope subsurface flow - Google Patents
Channel structure for collecting slope subsurface flow Download PDFInfo
- Publication number
- CN201843125U CN201843125U CN2010205441012U CN201020544101U CN201843125U CN 201843125 U CN201843125 U CN 201843125U CN 2010205441012 U CN2010205441012 U CN 2010205441012U CN 201020544101 U CN201020544101 U CN 201020544101U CN 201843125 U CN201843125 U CN 201843125U
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- CN
- China
- Prior art keywords
- sidewall
- interflow
- channel structure
- meets water
- subsurface flow
- 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
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Abstract
The utility model provides a channel structure for collecting slope subsurface flow, wherein, a U-shaped indented cambered surface is arranged in a concrete prefabricated channel body, subsurface flow seepage holes are arranged on a water side wall of the channel body, a solid channel surface is arranged on a land side wall, and a gravel filter layer is embedded into the outer side of the water side wall. The channel structure is applied to slope farmland water conservancy construction in areas with rich subsurface flow, and can effectively collect slope subsurface flow and increase water sources for field irrigation, the integrity of the prefabricated channel body is good, and the channel structure is not easy to break, can be embedded at a construction site directly, and is convenient and efficient.
Description
Technical field
The utility model relates to the device of collecting domatic interflow in the irrigation and water conservancy technical field, and definite is a kind of channel structure of collecting domatic interflow that is applicable to.
Background technology
Traditional hillside fields agricultural production water mainly relies on natural rainfall, but crop needs water and the temporal asynchronous imbalance between supply and demand that causes the hillside fields agricultural water of natural precipitation, greatly having restricted the raising of agricultural productive force, is to guarantee sufficient iirigation water source so improve the key of hillside fields agricultural productive force.The measure of taking at present mainly is by building irrigation canals and ditches and reservoir, retain the surface flow that precipitation produces, irrigating for the agricultural production in dry season and use.But see that with practical conditions because the catchment area deficiency of reservoir, the surface flow of collection is limited, the reservoir that builds up often is absorbed in the predicament of " not haveing enough to eat ".How to improve the collection rate of runoff, collection rainfall runoff yield as much as possible becomes one of outlet that solves this predicament in limited catchment area.According to the observation for many years of forest-science academy, Sichuan Province, the domatic interflow in Upper Yangtze River area can account for 25.7% of domatic whole runoff yields～55. 4%, if can be collected utilization, and originating for the irrigation water of hillside fields agricultural is important supply.But the surface flow that hillside fields between the many employings of traditional slope runoff collection technique weir surrounded by mountains, road (field bund) gutter collection flush period and road surface produce, the concrete or the stone masonry material that use are impermeable material, underground stream is stopped by trench sidewall in the interflow under the surface soil, only there is small part can be included in the irrigation canals and ditches, if can be improved existing trench sidewall structure, make domatic interflow can import irrigation canals and ditches, the charge for remittance ability of irrigation canals and ditches will be increased, improve the utilization ratio of natural rainfall to a great extent, increase the irrigation water source.
The utility model content
The utility model is waterproof at farmland ditch structure sidewall at present commonly used, stops the shortcoming that domatic interflow imports, and proposes a kind ofly can effectively collect the channel structure of domatic interflow.
The technical scheme that the utility model is taked is as follows: a kind of channel structure of collecting domatic interflow, concrete prefabricated canal body inside is the U-shaped inner concave arc surface, the sidewall that meets water of this canal body is provided with interflow and oozes out the hole, and the backwater sidewall is solid canal face, and sidewall outside landfill rubble filtration beds meets water.
Above-mentioned interflow is oozed out the vertical depth 20cm scope counted from the sidewall end face that meets water in the hole with interior layout on the sidewall that meets water, this oozes out the percent opening of hole on the sidewall that meets water is 20%～30%; The landfill vertical depth that broken filtration beds counted from the sidewall end face that meets water is 20cm, and the thickness of rubble filtration beds is 15cm.
The aperture that above-mentioned interflow is oozed out the hole is 15mm; Rubble filtration beds medium stone diameter is not more than 20mm.
Advantage applies of the present utility model exists:
1, change the existing fluid-tight shortcoming of trench sidewall, the sidewall that meets water is reserved interflow remittance abroad aperture, fully effectively collects domatic interflow.
2, the sidewall outside landfill macadam that meets water filters the silt that interflow is carried under one's arms.
3, canal body global formation adopts mould prefabricated on a large scale, and the scene of being transported to can directly be buried underground, convenient and quick construction.
Description of drawings
Fig. 1 is this novel canal body section organigram.
Fig. 2 is the canal body shown in Figure 1 side-wall hole schematic diagram that meets water.
The specific embodiment
The utility model at existing trench sidewall waterproof, the shortcoming that domatic interflow can't import, provide a kind of and can effectively collect the channel structure of interflow, concrete prefabricated canal body 1 inside is the U-shaped inner concave arc surface, the sidewall 1a that meets water of this canal body is provided with interflow and oozes out hole 2, backwater sidewall 1b is solid canal face, and sidewall 1a outside landfill rubble filtration beds 3 meets water.Interflow is oozed out the vertical depth 20cm scope counted from the sidewall end face that meets water in hole 2 with interior layout on the sidewall 1a that meets water, this oozes out the percent opening of hole on the sidewall that meets water is 20%～30%; The landfill vertical depth that broken filtration beds 3 counted from the sidewall end face that meets water is 20cm, and the thickness of rubble filtration beds is 15cm.The aperture that interflow is oozed out the hole is 15mm; Rubble filtration beds 3 medium stone diameters are not more than 20mm.
This kind irrigation canals and ditches are made of porous preforming canal body and outside rubble filtration beds.The canal body adopts C20 concrete prefabricated.
Claims (3)
1. channel structure of collecting domatic interflow, it is characterized in that: described concrete prefabricated canal body (1) is inner to be the U-shaped inner concave arc surface, the sidewall that meets water (1a) of this canal body is provided with interflow and oozes out hole (2), backwater sidewall (1b) is solid canal face, the sidewall that meets water (1a) outside landfill rubble filtration beds (3).
2. according to the channel structure of the domatic interflow of the described collection of claim 1, it is characterized in that: described interflow is oozed out hole (2) and is gone up the vertical depth 20cm scope counted from the sidewall end face that meets water with interior layout at the sidewall that meets water (1a), and this oozes out the percent opening of hole on the sidewall that meets water is 20%～30%; The landfill vertical depth that described broken filtration beds (3) counted from the sidewall end face that meets water is 20cm, and the thickness of rubble filtration beds is 15cm.
3. according to the channel structure of the domatic interflow of the described collection of claim 2, it is characterized in that: the aperture that described interflow is oozed out the hole is 15mm; Described rubble filtration beds (3) medium stone diameter is not more than 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205441012U CN201843125U (en) | 2010-09-27 | 2010-09-27 | Channel structure for collecting slope subsurface flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205441012U CN201843125U (en) | 2010-09-27 | 2010-09-27 | Channel structure for collecting slope subsurface flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843125U true CN201843125U (en) | 2011-05-25 |
Family
ID=44038019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205441012U Expired - Fee Related CN201843125U (en) | 2010-09-27 | 2010-09-27 | Channel structure for collecting slope subsurface flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201843125U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088263A (en) * | 2014-07-31 | 2014-10-08 | 淮南矿业(集团)有限责任公司 | Self-adaptive deforming impermeable channel applied to mining |
| CN105484957A (en) * | 2015-12-10 | 2016-04-13 | 刘婵琳 | Device for carrying out water lifting irrigation by utilizing solar energy |
-
2010
- 2010-09-27 CN CN2010205441012U patent/CN201843125U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088263A (en) * | 2014-07-31 | 2014-10-08 | 淮南矿业(集团)有限责任公司 | Self-adaptive deforming impermeable channel applied to mining |
| CN105484957A (en) * | 2015-12-10 | 2016-04-13 | 刘婵琳 | Device for carrying out water lifting irrigation by utilizing solar energy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20110927 |