CN213926130U - Ecological sediment trapping system suitable for erosion gully is administered - Google Patents
Ecological sediment trapping system suitable for erosion gully is administered Download PDFInfo
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- CN213926130U CN213926130U CN202021720234.0U CN202021720234U CN213926130U CN 213926130 U CN213926130 U CN 213926130U CN 202021720234 U CN202021720234 U CN 202021720234U CN 213926130 U CN213926130 U CN 213926130U
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- 230000003628 erosive effect Effects 0.000 title claims abstract description 29
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052742 iron Inorganic materials 0.000 claims abstract description 15
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- 238000011144 upstream manufacturing Methods 0.000 claims description 13
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 8
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- 241000209128 Bambusa Species 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims 2
- 241001278091 Salix integra Species 0.000 claims 1
- 241000734985 Salix x sepulcralis Species 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 8
- 238000004162 soil erosion Methods 0.000 abstract description 3
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- 239000010959 steel Substances 0.000 description 11
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- 241001330002 Bambuseae Species 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
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- 235000015097 nutrients Nutrition 0.000 description 2
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- 241000544043 Blyxa aubertii Species 0.000 description 1
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- 241000124033 Salix Species 0.000 description 1
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Abstract
The utility model relates to an ecological sediment trapping system suitable for erosion gully is administered can be used to the great and wide erosion gully that is greater than 15 meters of upper reaches difference in height, belongs to soil erosion and water loss and administers technical field. Consists of a water dropping device, an iron wire gabion check dam and a plant belt. Utilize the drop device to slow down the velocity of flow through erosion gully rivers, reduce rivers and to the erodeing of low reaches channel, further filter rivers through iron wire gabion check dam, intercept silt, utilize the plant area to intercept and utilize the tiny particle silt, reach and prevent soil erosion and water loss, the purpose of green development has good prospect in the aspect of the application.
Description
Technical Field
The utility model relates to a soil erosion and water loss administers technical field, concretely relates to ecological sediment trapping system suitable for erosion gully is synthesized and is administered.
Background
China is one of the most serious countries in the world with water and soil loss, wherein erosion gully corrosion accounts for a great proportion of the water and soil loss. The development of erosion ditches damages the land to swallow the farmland, and a large amount of land becomes separated and broken, so that the road is damaged; the soil fertility is reduced to aggravate drought development and reduce the grain yield, so that the grain supply crisis is caused, and the national grain safety is threatened; the river bed is lifted by siltation to aggravate flood disasters, and the life and production safety of people is threatened. Therefore, the treatment of erosion gully is an important measure for controlling water and soil loss, guaranteeing food safety and protecting ecological environment.
The treatment of erosion gullies usually adopts forest and grass measures such as gully afforestation and engineering measures such as building of a valley house and water drop to reduce the erosion and damage of water flow to the gully to the maximum extent and prevent the gully head from advancing, the gully bank from expanding, the gully bottom from being cut down and the like. Most of the prior art measures adopt a mode of combining check dam engineering measures with forest and grass measures, but the check dam engineering measures are singly adopted, so that the check dam is easily washed out when the height difference at the upstream is large; in the traditional technical means, forest and grass measures are mostly placed on the upstream side of a check dam facility, and a large amount of large-particle silt is deposited, so that the vegetation growth condition becomes very bad, and the expected water and soil conservation effect is difficult to achieve.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an ecological sediment trapping system suitable for erosion gully is administered is provided. Aiming at the erosion gully with larger upstream height difference and more than 15 meters of channel width, the system can utilize the water dropping device to buffer water flow, intercept silt in the water flow through the iron wire gabion check dam, utilize small-particle silt for secondary interception of the plant belt, and effectively relieve the problem of erosion gully erosion. The system has the characteristics of economy, environmental protection, high efficiency, safety, strong stability, wide application range and the like.
In order to realize the purpose of the utility model, the following technical scheme is adopted to realize:
an ecological sand blocking system suitable for erosion gully treatment comprises a water drop device, an iron wire gabion check dam and a plant belt.
The water drop device is built by materials such as bricks, stones or concrete, the inlet section is bilaterally symmetrical and has enough length, so that water flow gradually shrinks, the single wide flow is uniformly distributed, and the stilling pool and the downstream channel are provided with connecting and protecting building sections with certain length to prevent the water flow out of the pool from scouring the downstream channel. The flow speed and the flow state are adjusted through the water dropping device, so that the upstream water level smoothly enters the flow, the downstream fully dissipates energy, the pressure of high falling water is relieved, the scouring and the erosion of the downstream water flow are reduced, and the whole sand blocking system can bear larger load.
The iron wire gabion check dam comprises a dam body, a dam foundation, a protection block and a counterfort structure.
The dam body and the dam foundation are both formed by paving stone blocks in staggered joints in a layered mode, the selected stone blocks have the characteristics of high density, weather resistance, no edges and corners, low water absorption rate and the like, the phenomena of joint penetration, stacking, floating plug and the like are strictly forbidden in the paving process, and the stone blocks are tightly occluded according to the original shape of the stone blocks.
The dam body is characterized in that two ends of the dam body are connected with a ditch shoreline, an upstream slope surface is trapezoidal, a downstream slope surface is vertical to the ground, the width of the top surface of the dam body is 1.5-2.5m according to the width, the length, the water flow of an erosion ditch and the like, the height of the dam body is 2-3m, and the ratio of the upstream slope surface to the downstream slope surface is 1.0: 0.2.
The dam body is connected with the dam foundation through two rows of penetrating steel bars, one end of each steel bar is inserted into the ground surface, and the other end of each steel bar penetrates through the dam foundation and the dam body and is flush with the top surface of the dam body. One row of reinforcing steel bars are inserted into one side of the upstream slope surface, and the other row of reinforcing steel bars are inserted into one side of the downstream slope surface, so that the stability and the impact resistance of the dam body are enhanced, and the risk of dam break caused by the fact that the plumbous silk gabion slides down along with the slope protection in a flaky or local mode is reduced.
The top surface of the dam foundation is level to the ground, the height is 1.0-1.5m, impermeable materials such as geotextile and the like are laid under the dam foundation, the intersection of a seam and a slope surface line is ensured in the laying process, and the distance between the horizontal seam and a horizontal seam at a place where a slope toe is balanced or stress possibly exists is more than 1.5 m; on domatic, anchor the one end of geotechnological cloth, then put down the coiled material along domatic in order to guarantee that geotechnological cloth keeps taut state, reduced the velocity of flow of water, strengthened the wholeness of structure, protected simultaneously the soil of dam foundation lower floor can effectively improve the stability of iron wire gabion check dam.
The apron is connected to the downstream surface of the dam body. The length of the apron is 2.0-4.0m, and the height of the apron is 0.8-1.0 m. When strong water flow is responded, the dam foundation can be protected from being damaged due to the impact of the water flow; meanwhile, the apron can also protect the downstream of the check dam from being washed and eroded by water flow.
The buttress structure is arranged between the apron and the dam body and is made of reinforced concrete, the width of the buttress structure is 0.5-0.8m, and the height of the buttress structure is 2-3 m. The lower side of the buttress structure is connected with the apron through reinforcing steel bars, the reinforcing steel bars penetrate through the apron and are inserted into the ground, and the right side of the buttress structure is connected with the downstream slope surface of the dam body through the reinforcing steel bars. The counterfort structure balances the thrust of a water body on the upper slope surface of the dam body, so that the whole check dam structure can bear larger transverse load, the stability of the whole structure is enhanced, and the dam break is prevented.
The plant belts are planted with plants such as green bamboos, weeping willows and drought willows which have high growth speed, strong tillering property of the pulled bamboo shoots and stiff branches, the plant spacing is 3m, the row spacing is 4.5m, the plants are planted in the month of 4 the year, and the function of sand blocking can be exerted in the third year. The plant has developed and netted root system and criss-cross bamboo piers with staggered root systems and disc roots, can effectively slow down and disperse runoff, and can store silt, so that soil can be improved. And the plant belt is planted at the lower reaches of the iron wire gabion check dam for blocking small-particle sediment which is not blocked by the iron wire gabion check dam, and carrying out secondary blocking utilization on the sediment. The small-particle silt can adsorb a large amount of nutrients required by the growth of plants, and the environment is greened while the channel is treated.
Aiming at the erosion gully with larger upstream height difference and more than 15 meters of channel width, the system can utilize the water dropping device to buffer water flow, intercept silt in the water flow through the iron wire gabion check dam, utilize the plant belt to secondarily intercept and utilize small-particle silt, effectively relieve the erosion gully erosion problem of the erosion gully and achieve the purposes of preventing water and soil loss and green development.
The utility model relates to an ecological sediment trapping system for erosion gully is administered, its advantage lies in: 1) the water dropping device is efficient and safe, and reduces the water flow to be washed and eroded in the downstream, so that the whole sand blocking system can bear larger load. 2) The dam body structure has the advantages that the stability is high, the construction requirement of the counterfort structure is low, the thrust of a water body to the upper slope surface of the dam body main body is balanced, the whole check dam structure can bear larger transverse load, and the stability of the whole structure is enhanced. 3) The application range is wide, the stones used in the paving can be obtained from local materials, the building technology is simple, the fake manufacturing is low, and the adaptability to the terrain and the environment is strong. 4) The method is green and environment-friendly, and the intercepted small-particle sediment is used as the nutrient of the plants, so that the concept of sustainable development is realized.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the iron wire gabion check dam of the present invention;
fig. 3 is a schematic structural view of the plant belt of the present invention.
In the figure: 1 drop device, 2 iron wire gabion check dam, 3 plant belts, 21 dam body, 22 dam foundation, 23 apron and 24 counterfort device
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, and unless otherwise specified, the present invention is applicable to any raw materials and apparatus or method which are conventional in the art.
As shown in fig. 1, the ecological sand blocking system for erosion gully treatment comprises a water drop device 1, an iron wire gabion check dam 2 and a plant belt 3.
The water drop device 1 is built by materials such as bricks, stones or concrete, the inlet section is bilaterally symmetrical and has enough length, so that water flow gradually shrinks, the single wide flow is uniformly distributed, and the connecting and protecting building section with certain length is arranged on the stilling pool and a downstream channel.
As shown in fig. 2, the iron-wire gabion check dam 2 comprises a dam body 21, a dam foundation 22, a apron 23 and a buttress structure 24.
The dam body 21 and the dam foundation 22 are formed by paving stone blocks in staggered and layered mode, the selected stone blocks have the advantages of being high in density, weather-resistant, free of edges and corners, low in water absorption rate and the like, the phenomena of crack penetration, stacking, floating plug and the like are strictly forbidden in the paving process, and the stone blocks are tightly meshed according to the original shape of the stone blocks.
The two ends of the dam body 21 are connected with a ditch shoreline, the upstream slope surface is trapezoidal, the downstream slope surface is vertical to the ground, the width of the top surface of the dam body 21 is 1.5-2.5m, the height of the dam body 21 is 2-3m, and the ratio of the upstream slope surface to the downstream slope surface is 1.0: 0.2 according to the width, the length, the water flow of an erosion ditch and the like of the ditch.
The dam body 21 and the dam foundation 22 are connected by two rows of penetrating steel bars, one end of each steel bar is inserted into the ground, and the other end of each steel bar penetrates through the dam foundation 22 and the dam body 21 and is flush with the top surface of the dam body 21. One row of steel bars are inserted at one side of the upstream slope surface, and the other row of steel bars are inserted at one side of the downstream slope surface.
The top surface of the dam foundation 22 is level to the ground, the height is 1.0-1.5m, impermeable materials such as geotextile and the like are laid under the dam foundation, the intersection of a seam and a slope line is ensured in the laying process, and the distance between the seam and a horizontal seam at a place where a toe is balanced or stress possibly exists is larger than 1.5 m; on the slope surface, one end of the geotextile is anchored, and then the coiled material is put down along the slope surface to ensure that the geotextile keeps a tensioned state.
The apron 23 is connected to the downstream surface of the dam foundation 22. The length of the apron 23 is 2.0-4.0m, and the height is 0.8-1.0 m.
The buttress structure 24 is arranged between the apron 23 and the dam body 21, is made of reinforced concrete, and has a width of 0.5-0.8m and a height of 2-3 m. The lower side of the buttress structure 24 is connected with the apron 23 through steel bars, the steel bars penetrate through the apron 23 and are inserted into the ground, and the right side of the buttress structure 24 is connected with the downstream slope surface of the dam body 21 through the steel bars.
As shown in fig. 3, the bamboo plant strip 3 is to be planted with plants such as green bamboo, weeping willow and drought willow which have high growth speed, strong shoot tillering and tall branches, the plant spacing is 3m, and the row spacing is 4.5m, so as to block small-particle sediment which is not blocked by the iron wire gabion check dam.
The above description is the best embodiment of the present invention, not to the limitation of the present invention in any form, and all the technical matters of the present invention are any simple modification, equivalent change and modification made to the above examples, and all still fall into the protection scope of the present invention.
Claims (3)
1. The utility model provides an ecological sediment trapping system suitable for erosion gully is administered which characterized in that: an ecological sand blocking system suitable for erosion gully treatment comprises a water drop device, an iron wire gabion check dam and a plant belt; the iron wire gabion check dam comprises a dam body, a dam foundation, a protection block and a counterfort structure; the dam body is characterized in that two ends of the dam body are connected with a ditch shoreline, the upstream slope surface is trapezoidal, the downstream slope surface is vertical to the ground, the width of the top surface of the dam body is 1.5-2.5m, the height of the dam body is 2-3m, and the ratio of the upstream slope surface to the downstream slope surface is 1.0: 0.2; the plant belts are used for planting green bamboos, weeping willows and salix integra, the plant spacing is 3m, and the row spacing is 4.5 m.
2. An ecological sand barrier system suitable for erosion gully management as claimed in claim 1 wherein: the top surface of the dam foundation is level to the ground, the height of the dam foundation is 1.0-1.5m, geotextile is laid under the dam foundation, the intersection of a seam and a slope surface line is ensured in the laying process, and the distance between the seam and a horizontal seam at a place where a slope toe is balanced or stress possibly exists is larger than 1.5 m.
3. An ecological sand barrier system suitable for erosion gully management as claimed in claim 1 wherein: the buttress structure is arranged between the apron and the dam body and is made of reinforced concrete, the width of the buttress structure is 0.5-0.8m, and the height of the buttress structure is 2-3 m; the lower side of the buttress structure is connected with the apron through reinforcing steel bars, the reinforcing steel bars penetrate through the apron and are inserted into the ground, and the right side of the buttress structure is connected with the downstream slope surface of the dam body through the reinforcing steel bars.
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CN202021720234.0U CN213926130U (en) | 2020-08-17 | 2020-08-17 | Ecological sediment trapping system suitable for erosion gully is administered |
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