CN208762955U - A kind of channel check dam - Google Patents
A kind of channel check dam Download PDFInfo
- Publication number
- CN208762955U CN208762955U CN201821493507.5U CN201821493507U CN208762955U CN 208762955 U CN208762955 U CN 208762955U CN 201821493507 U CN201821493507 U CN 201821493507U CN 208762955 U CN208762955 U CN 208762955U
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- dam
- check
- check dam
- channel
- dam body
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Abstract
The utility model discloses a kind of channel check dams, check dam dam body is laterally set in channel, and extend downwardly into the bottom of check dam dam body in bottom of trench, the two sides dam abutment of check dam dam body extends transversely into ditch slope, the height of check dam dam body upstream face gradually rises along water (flow) direction, the height of check dam dam body back side is gradually decreased along water (flow) direction, on two lateral sulcus slope of channel and it is located at check dam dam body inflow direction side setting protecting wall, and making the upstream end thereof of protecting wall to the inner bending of ditch slope, the downstream of protecting wall connects with the check dam dam body upstream face；After protecting wall is added in check dam dam body upstream face side, check dam dam body is avoided because of upstream face collapse of dam problem caused by by two lateral sulcus bank of waterpower downwash, and protecting wall upstream end thereof is to the inner bending of ditch slope, it protrudes into ditch slope, it can effectively prevent water flow seepage flow after wall, therefore channel check dam high stability provided by the utility model.
Description
Technical field
The utility model relates to erosion groove protection technology fields, more particularly to a kind of channel check dam.
Background technique
Check dam is that erosion groove administers maximally efficient one of technical measures, can be divided into native check dam, stone check dam by construction material
And plant check dam.Native check dam is formed by earth filling tamping, is suitable for soil property hills area, but be unable to overflow by dam crest and limited, is answered
With less；Plant check dam by willow stake and compile willow hedge in banket or rockfill, height be no more than 1.5m, be only applicable to flow compared with
Small branch hair ditch is administered；Stone check dam is built by stone masonry, loose stone or gabion, is suitable for stone matter or native Mountainous Area, due to
Pannier check dam high stability, therefore it is most widely used.
Pannier check dam is successively in that step assembles by cuboid gabion net cage at present, each extends into two lateral sulcus banks 0.5
~1.0m, still has damaged or destroyed by flood problem, and main cause is that upstream face two sides soil property ditch bank by waterpower downwash is acted on lateral magnification,
After causing check dam dam abutment exposed, seepage deformation occurs for the soil body at ditch bank dam abutment, and water flow streams backlash brush downstream slope foot along dam abutment, most
The check dam dam foundation is caused to be emptied eventually, collapse of dam.
Therefore how to solve the problems, such as that pannier check dam dam body easily collapses because dam abutment streams, be that those skilled in the art are current
The technical issues that need to address.
Utility model content
The purpose of the utility model is to provide a kind of channel check dams, increase protecting wall in upstream face, avoid because meeting
The water surface is caused collapse of dam problem by two lateral sulcus bank of waterpower downwash.
In order to solve the above technical problems, the utility model provides a kind of channel check dam, including being horizontally installed in channel
Check dam dam body, and it is located on two lateral sulcus slope of channel and is located at the protecting wall of check dam dam body inflow direction side, the paddy
The bottom of mill dam body extends downwardly into bottom of trench, and the two sides dam abutment of the check dam dam body extends transversely into ditch slope, the check dam dam body
The height of upstream face gradually rises along water (flow) direction, and the height of the check dam dam body back side is gradually decreased along water (flow) direction, institute
The upstream end thereof of protecting wall is stated to the inner bending of ditch slope, the downstream of the protecting wall connects with the check dam dam body upstream face.
Preferably, the check dam dam body and the protecting wall are assembled by the layering of gabion net cage.
Preferably, the top center position of the check dam dam body is equipped with overflow port.
Preferably, the upstream end thereof of the protecting wall is along the upward closing slope of water (flow) direction.
Preferably, the slope ratio of the check dam dam body upstream face is 1:0.8, and the slope ratio of the check dam dam body back side is 1:
1.2。
Preferably, the depth that the bottom of the check dam dam body extends downwardly into bottom of trench is not less than 0.5m, the check dam dam body
Two sides dam abutment extends transversely into the length in ditch slope not less than 0.5m.
Preferably, check dam dam body backwater section side trench bottom be equipped with protection-apron layer, the protection-apron layer with it is described
Check dam dam body backwater section bottom connection, the two sides of the protection-apron layer are protruded into ditch slope.
Preferably, the protection-apron layer be inclination protection-apron layer, and its slope than with the slope of the check dam dam body back side than identical.
Preferably, geotextile layer and blotter are equipped between channel ditch slope and the protecting wall.
Channel check dam provided by the utility model, is laterally arranged check dam dam body in channel, and makes the bottom of check dam dam body
It extends downwardly into bottom of trench, the two sides dam abutment of check dam dam body extends transversely into ditch slope, and the height of check dam dam body upstream face is along water flow side
To gradually rising, the height of check dam dam body back side is gradually decreased along water (flow) direction, on two lateral sulcus slope of channel and is located at check dam
Protecting wall is arranged in dam body inflow direction side, and makes the upstream end thereof of protecting wall to the inner bending of ditch slope, the downstream of protecting wall and institute
Check dam dam body upstream face is stated to connect；After protecting wall is added in check dam dam body upstream face side, check dam dam body is avoided because of upstream face
Collapse of dam problem is caused by two lateral sulcus bank of waterpower downwash, and protecting wall upstream end thereof protrudes into ditch slope to the inner bending of ditch slope, energy
Enough it effectively prevent water flow seepage flow after wall, therefore channel check dam high stability provided by the utility model.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of specific embodiment of channel check dam provided by the utility model；
Fig. 2 is a kind of transverse sectional view of specific embodiment of channel check dam provided by the utility model；
Fig. 3 is a kind of longitudinal sectional view of specific embodiment of channel check dam provided by the utility model.
It is marked in attached drawing as follows:
Protecting wall 1, check dam dam body 2, protection-apron layer 3, blotter 4, leg wire of slope 5, costa colpi line 6.
Specific embodiment
The core of the utility model is to provide a kind of channel check dam, increases protecting wall in upstream face, avoids because meeting
The water surface is caused collapse of dam problem by two lateral sulcus bank of waterpower downwash.
In order to make those skilled in the art better understand the scheme of the utility model, with reference to the accompanying drawing and specific implementation
The utility model is described in further detail for mode.
Fig. 1 to Fig. 3 is please referred to, Fig. 1 is a kind of knot of specific embodiment of channel check dam provided by the utility model
Structure schematic diagram；Fig. 2 is a kind of transverse sectional view of specific embodiment of channel check dam provided by the utility model；Fig. 3 is
A kind of longitudinal sectional view of specific embodiment of channel check dam provided by the utility model.
The channel check dam that specific embodiment of the present invention provides, including the check dam dam body 2 being horizontally installed in channel,
The bottom of check dam dam body 2 extends downwardly into bottom of trench, and the two sides dam abutment of check dam dam body 2 extends transversely into ditch slope, and check dam dam body 2 meets water
The height in face gradually rises along water (flow) direction, and the height of 2 back side of check dam dam body is gradually decreased along water (flow) direction, in channel two sides
On ditch slope and it is located at 2 inflow direction side of check dam dam body equipped with protecting wall 1, the upstream end thereof of protecting wall 1 is prevented to the inner bending of ditch slope
The downstream of revetment 1 connects with 2 upstream face of check dam dam body.
In addition, protecting wall 1 is upwardly extended from leg wire of slope 5 along ditch slope, it is highly preferred at the top of check dam dam body 2 and protecting wall 1
It is flushed with costa colpi line 6, the transverse ends at top are respectively protruding into the ditch slope at costa colpi line 6, can protect entire channel.Wherein
Leg wire of slope 5 is the differentiation line on ditch slope and bottom of trench, and costa colpi line 6 is the differentiation line of channel and Loess interfcure.
Channel check dam provided by the utility model is additionally arranged on the basis of existing check dam dam body 2 in its upstream face side
Protecting wall 1, avoids check dam dam body 2 because of upstream face collapse of dam problem caused by by two lateral sulcus bank of waterpower downwash, especially suitable for
2 upstream face of check dam dam body, two lateral sulcus slope does not have the deep U type gully erosion for excavating engagement groove, and 1 upstream end thereof of protecting wall is to ditch
Slope inner bending is protruded into ditch slope, can effectively prevent water flow seepage flow after wall, therefore channel check dam provided by the utility model is steady
It is qualitative higher.
In addition, the height of 2 upstream face of check dam dam body gradually rises along water (flow) direction, the height edge of 2 back side of check dam dam body
Water (flow) direction gradually decreases, and can slow down water and flow through the out-of-date impact force to dam body, since check dam dam body 2 is horizontally installed on channel
It is interior, then the cross section of check dam dam body 2 be with the matched inverted trapezoidal of channel, check dam dam body 2 meet water section transverse width along water flow side
To being gradually widened, the transverse width of 2 backwater section of check dam dam body becomes narrow gradually along water (flow) direction.
Further, the channel check dam that specific embodiment of the present invention provides, check dam dam body 2 and protecting wall 1 are excellent
Choosing is assembled by the layering of gabion net cage, and construction is simple is convenient, and affected by environment smaller, high stability.It is of course also possible to
Check dam dam body 2 or protecting wall 1 are made using cement, concrete etc., are also within the protection scope of the utility model.
The channel check dam that specific embodiment of the present invention provides, specifically, in the top center position of check dam dam body 2
It can be equipped with overflow port, so that water flow is mainly flowed out from overflow port, the unrestrained top of water flow, can preferably be protected when avoiding water larger
Two lateral sulcus slopes.
Further, the upstream end thereof of protecting wall 1 is preferably along the upward closing slope of water (flow) direction, to slow down suffered water impact
The slope of power, 1 upstream end thereof of protecting wall than specifically can be set to 1:1, and the slope of 2 upstream face of check dam dam body than specifically can be set
Slope for 1:0.8, and 2 back side of check dam dam body than specifically can be set to 1:1.2, can preferably protect 2 He of check dam dam body
Protecting wall 1.Certainly, the slope of check dam dam body 2 and protecting wall 1 ratio is not limited to this, and can be adjusted according to actual landform, this Shen
Please this is not specifically limited.
The channel check dam that specific embodiment of the present invention provides, for the stabilization for guaranteeing check dam dam body 2 and protecting wall 1
Property, the depth that the bottom of check dam dam body 2 extends downwardly into bottom of trench are preferably not less than 0.5m, and the two sides dam abutment of check dam dam body 2 is laterally stretched
The length entered in ditch slope is preferably not less than 0.5m.
The channel check dam that specific embodiment of the present invention provides on the basis of above-mentioned each specific embodiment, in paddy
The trench bottom of 2 backwater section side of mill dam body is also provided with protection-apron layer 3, protection-apron layer 3 and 2 backwater section bottom phase of check dam dam body
It connects, the stability of check dam dam body 2 can be improved in setting 3 one side of protection-apron layer, on the other hand can flow in water flow along check dam dam body 2
Trench bottom will be protected when lower, reduce water flow impact pressure.
Specifically, protection-apron layer 3 preferably tilts protection-apron layer 3, and its slope is than that can compare phase with the slope of 2 back side of check dam dam body
Together, trench bottom can be protected when water flow is under the stream of check dam dam body 2, reduces water flow impact pressure.
In addition, the two sides of protection-apron layer 3 can be protruded into ditch slope, and the length protruded into ditch slope is preferably not less than 0.5m, prevents
Only entire channel can be preferably protected by erosion at channel leg wire of slope 5.
On the basis of above-mentioned each specific embodiment, the channel check dam that specific embodiment of the present invention provides,
Geotextile layer and blotter 4 are further preferably equipped between channel ditch slope and protecting wall 1, by the gabion net cage of protecting wall 1 with
Soil body isolation, slows down current scour soil, and keep the overall structure and bearing capacity of protecting wall 1.
Wherein it should be noted that each embodiment is described in a progressive manner in specification, each embodiment emphasis
What is illustrated is the difference from other embodiments, and similar portion may refer to each other between each embodiment.For implementing
Disclosed in example for device, since it is corresponded to the methods disclosed in the examples, so description is relatively simple, related place referring to
Method part illustration.
Channel check dam provided by the utility model is described in detail above.Specific case pair used herein
The principles of the present invention and embodiment are expounded, and the above embodiments are only used to help understand, and this is practical new
The method and its core concept of type.It is practical not departing from it should be pointed out that for those skilled in the art
Under the premise of new principle, several improvements and modifications can be made to this utility model, these improvement and modification also fall into this
In the protection scope of utility model claims.
Claims (9)
1. a kind of channel check dam, which is characterized in that including the check dam dam body being horizontally installed in channel, and be located at channel two sides
Protecting wall on ditch slope and positioned at check dam dam body inflow direction side, the bottom of the check dam dam body extends downwardly into bottom of trench
Interior, the two sides dam abutment of the check dam dam body extends transversely into ditch slope, the height of the check dam dam body upstream face along water (flow) direction by
Edge up height, and the height of the check dam dam body back side is gradually decreased along water (flow) direction, and the upstream end thereof of the protecting wall is to ditch slope
Inner bending, the downstream of the protecting wall connect with the check dam dam body upstream face.
2. channel check dam according to claim 1, which is characterized in that the check dam dam body and the protecting wall are by gabion
Net cage layering assembles.
3. channel check dam according to claim 2, which is characterized in that the top center position of the check dam dam body, which is equipped with, overflows
Head piece.
4. channel check dam according to claim 3, which is characterized in that the upstream end thereof of the protecting wall along water (flow) direction to
Upper closing slope.
5. channel check dam according to claim 4, which is characterized in that the slope ratio of the check dam dam body upstream face is 1:0.8,
The slope ratio of the check dam dam body back side is 1:1.2.
6. channel check dam according to claim 5, which is characterized in that the bottom of the check dam dam body extends downwardly into bottom of trench
Depth is not less than 0.5m, and the two sides dam abutment of the check dam dam body extends transversely into the length in ditch slope not less than 0.5m.
7. according to claim 1 to channel check dam described in 6 any one, which is characterized in that in the check dam dam body backwater section
The trench bottom of side is equipped with protection-apron layer, the protection-apron layer and the check dam dam body backwater section bottom connection, the protection-apron layer
Two sides are protruded into ditch slope.
8. channel check dam according to claim 7, which is characterized in that the protection-apron layer is inclination protection-apron layer, and its slope ratio
With the slope of the check dam dam body back side than identical.
9. channel check dam according to claim 8, which is characterized in that be equipped between channel ditch slope and the protecting wall
Geotextile layer and blotter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821493507.5U CN208762955U (en) | 2018-09-12 | 2018-09-12 | A kind of channel check dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821493507.5U CN208762955U (en) | 2018-09-12 | 2018-09-12 | A kind of channel check dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208762955U true CN208762955U (en) | 2019-04-19 |
Family
ID=66134772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821493507.5U Expired - Fee Related CN208762955U (en) | 2018-09-12 | 2018-09-12 | A kind of channel check dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208762955U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842720A (en) * | 2018-09-12 | 2018-11-20 | 吉林省水土保持科学研究院 | A kind of channel check dam and its construction method |
-
2018
- 2018-09-12 CN CN201821493507.5U patent/CN208762955U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842720A (en) * | 2018-09-12 | 2018-11-20 | 吉林省水土保持科学研究院 | A kind of channel check dam and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190419 Termination date: 20210912 |