CN212561433U - Saline-alkali region water resource collecting and utilizing system containing vent holes - Google Patents
Saline-alkali region water resource collecting and utilizing system containing vent holes Download PDFInfo
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- CN212561433U CN212561433U CN201920591895.9U CN201920591895U CN212561433U CN 212561433 U CN212561433 U CN 212561433U CN 201920591895 U CN201920591895 U CN 201920591895U CN 212561433 U CN212561433 U CN 212561433U
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Abstract
The utility model discloses a saline-alkali region water resource collecting and utilizing system with vent holes, which comprises a soil body, vent holes and a storage and discharge well; the soil body comprises a planting soil layer, a permeable film layer, a water storage layer, a waterproof layer and a saline-alkali soil layer which are sequentially arranged from top to bottom; the lower surface of the water storage layer is provided with a groove protruding into the saline-alkali soil layer, and a concealed pipe is arranged in the groove; the underground pipe is connected and communicated with the storage and discharge well in a slope direction; the storage and drainage wells are arranged in the soil body at intervals, the depth of the storage and drainage wells extends to the lower part of the groove from top to bottom, and the storage and drainage wells are of a watertight structure; adopting a lateral waterproof layer at the joint of the system and the surrounding building or structure for reverse wrapping; the air vent extends downwards from a planting soil layer of the soil body to the permeable film layer; the utility model discloses can effectively collect and permeate the intraformational rainwater of planting soil after the rainfall to can not lead to saline and alkaline soil layer to return salt to planting soil layer.
Description
Technical Field
The utility model belongs to saline and alkaline land water resource processing field especially relates to a saline and alkaline region water resource collection utilizes system containing air vent.
Background
The water resource occupation of the per capita in China is only 30% of the world level, most regions are lack of water or severely lack of water, and in recent years, along with the further deepening of the urbanization process, the demand of the water resource is more and more large, and how to efficiently develop and utilize the water resource becomes a common challenge facing the social needs.
In order to explore the construction paths of sponge cities under different natural environments and urban forms, the country develops two sets of 30 sponge city pilot constructions, the sponge city construction is actively developed nationwide at present, and different rainwater collection, purification and utilization technologies and products are adopted for different underlying surfaces. Rainwater is a precious fresh water resource, and is particularly precious for collecting and utilizing rainwater in coastal saline-alkali soil which is a serious water shortage area. Due to water shortage of saline-alkali soil, the salt concentration in the soil exceeds the bearing capacity of plants, and salt damage is formed. The salt comes with the water and goes with the water, so sufficient fresh water resource supply must be ensured, and the saline-alkali land resource can be continuously utilized.
China's republic of ChinaThe total area of the coastal saline-alkali soil reaches 500 multiplied by 104hm2,. With the development of economy and industry in the years, saline-alkali areas become new sites for economic development, and in order to meet the requirements of construction and development, the method for treating saline-alkali soil by 'stone chip leaching layers' and 'concealed pipe salt discharge' is widely applied. The method for treating the saline-alkali soil by the 'stone chip sprinkling layer' and the 'concealed pipe salt elimination' comprises the steps of changing the soil of the saline-alkali soil into good or replacing the soil with planting soil, laying stone chips below the planting soil to isolate the saline-alkali soil, preventing capillary water with high salt from entering the good soil, arranging a drainage blind ditch below the stone chip layer, and timely draining capillary high salt water and water drained from the good soil into a municipal pipe network. Meanwhile, in order to prevent the water level of underground water from exceeding the drenching layer to cause the failure of the drenching layer, the elevation of the green land is raised by earthwork, the elevation is generally raised by at least more than 1.5 meters higher than the highest value of the underground water level, the further distance from the underground high-salinity water is realized, the influence of the high-salinity capillary water is reduced, the improved soil is ensured not to be salinized any more, the greening can be normally carried out, and various plants are planted. However, the existing method for treating saline-alkali soil by adding 'hidden pipe salt removal' to the 'stone chip leaching layer' has the defects that: rainwater after rainfall permeates into soil, enters a salt-alkali layer through a stone chip layer to be lost, or is directly discharged into a municipal drainage pipe network, so that the rainwater cannot be effectively utilized, and meanwhile, in the fertilization process, a large amount of nutrient substances such as nitrogen, phosphorus, potassium and the like are discharged into a municipal rainwater system, and eutrophication of a downstream water body is also caused; the surface runoff rainwater which cannot seep in time when raining flows into low-lying areas such as peripheral roads, the drainage pressure and waterlogging risk of the roads are increased, and meanwhile, the green soil scours the road surface along with the runoff, so that the problem of runoff pollution such as mud left after the road rains is caused; the greening earthwork amount is large and uneconomical.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a saline and alkaline region water resource collection utilizes system that contains the air vent. The system can effectively collect rainwater permeating into the planting soil layer after rainfall, and can not cause salt return of a saline-alkali soil layer to the planting soil layer; furthermore, the utility model discloses can also make saline and alkaline land afforestation elevation reduce, reduce the earthwork volume, reduce the runoff pollution to peripheral facilities such as road simultaneously.
For solving the first technical problem, the utility model adopts the following technical scheme:
a saline-alkali region water resource collecting and utilizing system containing vent holes comprises a soil body, vent holes and a storage and drainage well; the soil body comprises a planting soil layer, a permeable film layer, a water storage layer, a waterproof layer and a saline-alkali soil layer which are sequentially arranged from top to bottom; the lower surface of the water storage layer is provided with a groove protruding into the saline-alkali soil layer, and a concealed pipe is arranged in the groove; the underground pipe is connected and communicated with the storage and discharge well in a slope direction; the storage and drainage wells are arranged in the soil body at intervals, the depth of the storage and drainage wells extends to the lower part of the groove from top to bottom, and the storage and drainage wells are of a watertight structure; adopting a lateral waterproof layer at the joint of the system and the surrounding building or structure for reverse wrapping; the air vent extends downwards from a planting soil layer of the soil body to the permeable film layer.
Preferably, the thickness of the planting soil layer is 60-140 cm.
Preferably, the water permeable film layer is a water permeable nonwoven fabric.
Preferably, the aquifer is large-pore material such as 18-60cm thick stone chips or broken stones or pp modules.
Preferably, the waterproof layer comprises an upper waterproof geotextile layer, a waterproof membrane layer and a lower waterproof geotextile layer, and extends to the bottom of the well at the overflow drainage well.
Preferably, the concealed pipes are arranged at intervals of 6-8 meters; the concealed pipe is a PVC (polyvinyl chloride) seepage pipe, 2% of the concealed pipe is communicated with the storage and discharge well in the slope direction, and the concealed pipe can be coated with permeable geotextile.
Preferably, an overflow drain pipe is arranged on the storage and drainage well wall and is flush with the lower surface of the planting soil layer; the bottom of the storage and drainage well is provided with a water taking pit, and a water taking pipe is arranged at the wellhead of the storage and drainage well and extends into the water taking pit.
Preferably, when the green land area is very large, the saline-alkali region water resource collection and utilization system with the vent holes can be divided into a plurality of catchment areas for the convenience of management and control, and different catchment areas can be separated by waterproof geotextile reverse bags; the height of the turn-up is typically more than 50cm above the aquifer.
Preferably, the storage and drainage well extends to a depth of at least 1m below the trench from top to bottom.
Any range recited in the present invention includes any numerical value between the endpoints and any sub-range comprised of any numerical value between the endpoints or any numerical value between the endpoints.
Unless otherwise specified, the raw materials of the present invention can be purchased commercially, and the equipment used in the present invention can be implemented by conventional equipment in the related art or by referring to the prior art in the related art.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model relates to a saline-alkali soil region water resource collection and utilization system containing air vents, which can effectively collect rainwater permeating into a planting soil layer after rainfall, and can not lead the saline-alkali soil layer to return salt to the planting soil layer, and the collected rainwater can be used for greening irrigation, road watering and the like; furthermore, the utility model discloses can also make saline and alkaline land afforestation elevation reduce, reduce the earthwork volume, reduce the runoff pollution to peripheral facilities such as road simultaneously.
Drawings
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is the schematic view of the cross-sectional structure of the soil body of the present invention
Detailed Description
In order to illustrate the invention more clearly, the invention is further described below with reference to preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-2, the present invention relates to a system for collecting and utilizing water resources in saline-alkali region containing air vent, which comprises a soil body 100, an air vent 300 and a storage and drainage well 200; the soil body 100 comprises a planting soil layer 1, a permeable membrane layer 2, a water storage layer 3, a waterproof layer 4 and a saline-alkali soil layer 5 which are arranged in sequence from top to bottom; the lower surface of the water storage layer 3 is provided with a groove 6 which protrudes into the saline-alkali soil layer 5, and a hidden pipe 7 is arranged in the groove; the hidden pipe 7 is connected and communicated with the storage and discharge well 200 in the slope direction; the storage and drainage wells 200 are arranged in the soil body 100 at intervals, the depth of the storage and drainage wells extends into the saline-alkali soil layer 5 from top to bottom, and the walls of the storage and drainage wells 200 are of watertight structures; the wall of the storage and drainage well 200 is provided with an overflow drain pipe 8, and the overflow drain pipe 8 is flush with the lower surface of the planting soil layer 1; the air vent 300 extends downwards from the planting soil layer 1 of the soil body 100 to the permeable membrane layer 2; when more water is stored in the storage and drainage well 7, the air is not conveniently exhausted any more, so that water resources on the surface of the soil body 100 are not permeated downwards any more, and the air needs to be exhausted through the air vent 300; the utility model provides an air vent 300 can directly punch in soil body 100, perhaps realizes in inserting soil body with the pipeline that has the bleeder vent.
According to a preferred embodiment of the present invention, the planting soil layer 1 has a thickness of 60-140 cm.
According to the preferred embodiment of the present invention, the permeable membrane layer 2 is a permeable nonwoven fabric.
According to a preferred embodiment of the invention, the aquifer 3 is a large-pore material such as rock chips or gravel or pp modules with a thickness of 18-60 cm.
According to a preferred embodiment of the present invention, the waterproof layer 4 comprises an upper waterproof geotextile layer, a waterproof membrane layer and a lower waterproof geotextile layer, and extends to the bottom of the well at the overflow drainage well; the waterproof layer 4 is arranged, so that rainwater can be prevented from directly permeating into a saline-alkali soil layer below and flowing away after permeating into the water storage layer 3 and then being discharged into the storage and drainage well 200 through the concealed pipe 7; the saline water in the saline-alkali soil layer 5 can be ensured not to reversely permeate into the water storage layer 3, even reversely permeate into the planting soil layer 1, so that the planting soil layer 1 is damaged; the waterproof layer 4 also isolates the mutual water seepage problem between the water storage layer 3 and the saline-alkali soil layer 5 at the position of the storage and drainage well; in addition, the upper waterproof geotextile layer is also helpful for enhancing the toughness and strength of the waterproof layer and preventing the waterproof membrane layer from being damaged by broken stones and the like on the upper layer; also, the lower waterproof geotechnical layer helps to prevent damage to the waterproofing membrane layer from the lower saline-alkali soil layer 5.
According to a preferred embodiment of the present invention, the concealed pipes 7 are arranged at intervals of 6-8 meters; the concealed pipe 7 is a PVC seepage pipe and is communicated with the storage and discharge well 200 in a 2% slope direction; in order to prevent the blind pipe from being blocked by the seepage hole, the blind pipe is coated with a permeable geotextile; the utility model discloses can open out the narrow shape infiltration hole of multirow on the hidden pipe 7 circumference, can be through controlling the aperture ratio, satisfy different ring rigidity and permeability requirement; the underground pipe 7 is coated with the permeable geotextile, so that the water permeating effect can be achieved, and the blockage caused by the silt entering the underground pipe 7 can be avoided.
According to the utility model discloses preferred embodiment, the shaft bottom that holds row well 200 is equipped with the nest of fetching water 9, and in the well head that holds row well 200 was equipped with water intaking pipe 10 and extends to the nest of fetching water 9 always, the rainwater that the convenient extraction was assembled.
According to the utility model discloses preferred embodiment, in this saline and alkaline region water resource collection utilization system that contains air vent and handing-over department such as peripheral building or structures, for preventing rivers and to the influence of infiltration to other structures etc., adopt the side direction waterproof layer to turn over to wrap at this system border and carry out water conservation and prevention of seepage.
According to the preferred embodiment of the present invention, when the green space is very large, the saline-alkali region water resource collection and utilization system containing the vent holes can be divided into a plurality of catchment areas for convenient management and control, and the different catchment areas can be separated by the waterproof geotextile reverse wrapping; the height of the turn-up is typically more than 50cm above the crushed stone layer (not shown).
According to the utility model discloses preferred embodiment, hold row well depth top-down extends to the slot below 1m at least department.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes or variations led out by the technical scheme of the utility model are still in the protection scope of the utility model.
Claims (9)
1. Saline-alkali soil water resource collection and utilization system who contains the air vent, its characterized in that: comprises a soil body, a vent hole and a storage and drainage well; the soil body comprises a planting soil layer, a permeable film layer, a water storage layer, a waterproof layer and a saline-alkali soil layer which are sequentially arranged from top to bottom; the lower surface of the water storage layer is provided with a groove protruding into the saline-alkali soil layer, and a concealed pipe is arranged in the groove; the underground pipe is connected and communicated with the storage and discharge well in a slope direction; the storage and drainage wells are arranged in the soil body at intervals, the depth of the storage and drainage wells extends to the lower part of the groove from top to bottom, and the storage and drainage wells are of a watertight structure; adopting a lateral waterproof layer at the joint of the system and the surrounding building or structure for reverse wrapping; the air vent extends downwards from a planting soil layer of the soil body to the permeable film layer.
2. The saline-alkali soil water resource collecting and utilizing system with the vent according to claim 1, wherein: the thickness of the planting soil layer is 60-140 cm.
3. The saline-alkali soil water resource collecting and utilizing system with the vent according to claim 1, wherein: the permeable film layer is a permeable non-woven fabric.
4. The saline-alkali soil water resource collecting and utilizing system with the vent according to claim 1, wherein: the aquifer is 18-60cm thick stone chips or broken stones or pp modules.
5. The saline-alkali soil water resource collecting and utilizing system with the vent according to claim 1, wherein: the waterproof layer comprises an upper waterproof geotextile layer, a waterproof film layer and a lower waterproof geotextile layer, and extends to the bottom of the well at the overflow drainage well.
6. The saline-alkali soil water resource collecting and utilizing system with the vent according to claim 1, wherein: the concealed pipes are arranged at intervals of 6-8 meters; the concealed pipe is a PVC (polyvinyl chloride) seepage pipe, 2% of the concealed pipe is communicated with the storage and discharge well in the slope direction, and the concealed pipe can be coated with permeable geotextile.
7. The saline-alkali soil water resource collecting and utilizing system with the vent according to claim 1, wherein: an overflow drain pipe is arranged on the storage and drainage well wall and is flush with the lower surface of the planting soil layer; the bottom of the storage and drainage well is provided with a water taking pit, and a water taking pipe is arranged at the wellhead of the storage and drainage well and extends into the water taking pit.
8. The saline-alkali soil water resource collecting and utilizing system with the vent according to claim 1, wherein: the saline-alkali region water resource collecting and utilizing system containing the vent holes is divided into a plurality of catchment areas, and different catchment areas can be separated by reverse wrapping of waterproof geotextile; the height of the turn-up is typically more than 50cm above the aquifer.
9. The saline-alkali soil water resource collecting and utilizing system with the vent according to claim 1, wherein: the depth of the accumulation and discharge well extends to at least 1m below the groove from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920591895.9U CN212561433U (en) | 2019-04-26 | 2019-04-26 | Saline-alkali region water resource collecting and utilizing system containing vent holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920591895.9U CN212561433U (en) | 2019-04-26 | 2019-04-26 | Saline-alkali region water resource collecting and utilizing system containing vent holes |
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| Publication Number | Publication Date |
|---|---|
| CN212561433U true CN212561433U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920591895.9U Expired - Fee Related CN212561433U (en) | 2019-04-26 | 2019-04-26 | Saline-alkali region water resource collecting and utilizing system containing vent holes |
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| CN (1) | CN212561433U (en) |
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- 2019-04-26 CN CN201920591895.9U patent/CN212561433U/en not_active Expired - Fee Related
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Granted publication date: 20210219 Termination date: 20210426 |