CN210797788U - Saline-alkali region water resource collecting and utilizing system containing permeation well - Google Patents
Saline-alkali region water resource collecting and utilizing system containing permeation well Download PDFInfo
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- CN210797788U CN210797788U CN201920610448.3U CN201920610448U CN210797788U CN 210797788 U CN210797788 U CN 210797788U CN 201920610448 U CN201920610448 U CN 201920610448U CN 210797788 U CN210797788 U CN 210797788U
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Abstract
The utility model discloses a saline-alkali region water resource collecting and utilizing system with a penetration well, which comprises a soil body and a water storage well; the soil body comprises a planting soil layer, a first 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 rapid infiltration purification well is arranged in the planting soil layer, extends downwards from the upper surface of the planting soil layer to the first permeable membrane layer and comprises a sand filter layer, a second permeable membrane layer and a stone chip layer 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 slope direction of the concealed pipe is connected and communicated with a water storage well; the water storage wells are arranged in the soil body at intervals, and the depth of the water storage wells extends to the lower part of the groove from top to bottom; the system quickly and effectively collects rainwater collected into the concave green land after rainfall, and salt return of a saline-alkali soil layer to a planting soil layer is avoided; furthermore, the utility model discloses can also make saline and alkaline land afforestation elevation reduce.
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 that contains infiltration well.
Background
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.
The total area of coastal saline-alkali soil in China reaches 500 multiplied by 104hm2,. With the development of economy and industry in the years, saline-alkali areas become new places for economic development, and in order to meet the requirements of construction and development, the saline-alkali land is treated by ' stone chip sprinkling layer ' and ' concealed pipe salt dischargeThe method of (3) is widely used. 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 technical problem to be solved by the utility model is to provide a saline-alkali region water resource collecting and utilizing system containing a penetration well; the system can quickly and effectively collect rainwater collected to the surface of the planting soil layer after rainfall, and can not cause salt return of the 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 with a penetration well comprises a soil body and a water storage well; the soil body comprises a planting soil layer, a first 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 rapid infiltration purification well is arranged in the planting soil layer, extends downwards from the upper surface of the planting soil layer to the first permeable membrane layer, comprises a sand filter layer, a second permeable membrane layer and a stone chip layer from top to bottom, and is a third permeable membrane layer 64; 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 slope direction of the concealed pipe is connected and communicated with a water storage well; the water storage wells are arranged in the soil body at intervals, the depth of each water storage well extends to the lower part of the groove from top to bottom, the well wall of the water storage well, which is in contact with the water storage layer, is of a seepage pipe structure, and the well walls of other parts are of watertight structures; the joint of the system and the surrounding building or structure adopts a lateral waterproof layer to reversely wrap.
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 water storage well in the slope direction, and the concealed pipe can be coated with permeable geotextile.
Preferably, when the green land area is very large, the saline-alkali region water resource collection and utilization system containing the permeation well can be divided into a plurality of catchment areas for convenience of management and control, and different catchment areas can be separated by waterproof geotextile reverse wraps; the height of the turn-up is typically more than 50cm above the aquifer.
Preferably, the bottom of the water storage well is provided with a water taking pit, and a water taking pipe is arranged at the wellhead of the water storage well and extends into the water taking pit.
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 salt and alkali region water resource collection and utilization system containing a penetration well, which can effectively collect rainwater penetrating into a planting soil layer after rainfall, and can not cause the salt return of the salt and alkali soil layer 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 roads simultaneously, in saline and alkaline land water shortage area, can not arrange each drip that permeates into soil.
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 saline-alkali region water resource collection and utilization system with a penetration well, which comprises a soil body 100 and a water storage well 200; the soil body 100 comprises a planting soil layer 1, a first permeable film 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 rapid infiltration purification well 6 is arranged in the planting soil layer 1, the rapid infiltration purification well 6 extends downwards from the upper surface of the planting soil layer 1 to the first permeable membrane layer 2, the rapid infiltration purification well 6 comprises a sand filter layer 61, a second permeable membrane layer 62 and a stone chip layer 63 from top to bottom, and the rapid infiltration purification well wall in contact with the planting soil layer is a third permeable membrane layer 64; the lower surface of the water storage layer 3 is provided with a groove 7 which protrudes into the saline-alkali soil layer, and a concealed pipe 8 is arranged in the groove; the hidden pipe 8 is connected and communicated with a water storage well 200 in the slope direction; the water storage wells 200 are arranged in the soil body 100 at intervals, the depth of the water storage wells extends to the lower part of the groove 7 from top to bottom, the well wall of the part of the water storage well 200, which is in contact with the water storage layer 3, is of a seepage pipe structure, and the well wall of the other part is of a watertight structure; a reverse wrap of the lateral waterproof layer 300 is employed at the interface of the system with the surrounding building or structure.
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 first and second permeable film layers 2 and 62 are permeable nonwoven fabrics.
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 water storage well 200; the waterproof layer 4 is arranged, so that rainwater can be guaranteed to be drained into the water storage well 200 through the concealed pipe 8 after penetrating into the water storage layer 3, and the rainwater cannot directly penetrate into a saline-alkali soil layer below to be lost; 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 water storage 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 8 are arranged at intervals of 6-8 meters; the concealed pipe 8 is a PVC seepage pipe and is communicated with the water storage well 200 in a 2% slope direction; in order to prevent the blind pipe from being blocked by the seepage holes, the blind pipe 8 is coated with a permeable geotextile; the utility model can open a plurality of rows of narrow strip-shaped seepage holes on the circumference of the hidden pipe 8, and can meet the requirements of different ring rigidity and permeability by controlling the aperture ratio; the underground pipe 8 is coated with the permeable geotextile, so that the water permeating effect can be achieved, and the blockage caused by the fact that silt enters the underground pipe 8 can be avoided.
According to the utility model discloses preferred embodiment, in this saline and alkaline region water resource collection utilization system that contains the infiltration well handing-over department such as peripheral building or structure, for preventing rivers and to the influence of infiltration to other structures etc., adopt side direction waterproof layer 300 turn-ups to preserve water and prevent seepage at this system border.
According to the preferred embodiment of the present invention, when the green land area is very large, the saline-alkali region water resource collection and utilization system including the permeation well 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 aquifer (not shown).
According to the preferred embodiment of the present invention, the bottom of the water storage well 200 is provided with a water intake pit 201, and a water intake pipe 202 is arranged at the mouth of the water storage well 200 and extends into the water intake pit 201, so as to facilitate the extraction of the gathered rainwater; according to the automatic drainage requirement of the water storage well 200, an overflow drain pipe 203 (the depth in the well can be selected according to the requirement) can be arranged on the well wall, and the overflow drain pipe is communicated with a municipal drainage system.
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 (8)
1. Contain salt alkali region water resource collection utilization system of infiltration well, its characterized in that: comprises a soil body and a water storage well; the soil body comprises a planting soil layer, a first 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 rapid infiltration purification well is arranged in the planting soil layer, extends downwards from the upper surface of the planting soil layer to the first permeable membrane layer, comprises a sand filter layer, a second permeable membrane layer and a stone chip layer from top to bottom, and is a third permeable membrane layer; 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 slope direction of the concealed pipe is connected and communicated with a water storage well; the water storage wells are arranged in the soil body at intervals, the depth of each water storage well extends to the lower part of the groove from top to bottom, the well wall of the water storage well, which is in contact with the water storage layer, is of a seepage pipe structure, and the well walls of other parts are of watertight structures; the joint of the system and the surrounding building or structure adopts a lateral waterproof layer to reversely wrap.
2. The system for collecting and utilizing the water resource in the saline-alkali region containing the penetration well as recited in claim 1, wherein: the thickness of the planting soil layer is 60-140 cm.
3. The system for collecting and utilizing the water resource in the saline-alkali region containing the penetration well as recited in claim 1, wherein: the permeable film layer is a permeable non-woven fabric.
4. The system for collecting and utilizing the water resource in the saline-alkali region containing the penetration well as recited in claim 1, wherein: the aquifer is 18-60cm thick stone chips or broken stones or pp modules.
5. The system for collecting and utilizing the water resource in the saline-alkali region containing the penetration well as recited in 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 system for collecting and utilizing the water resource in the saline-alkali region containing the penetration well as recited in 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 water storage well in the slope direction, and the concealed pipe can be coated with permeable geotextile.
7. The system for collecting and utilizing the water resource in the saline-alkali region containing the penetration well as recited in claim 1, wherein: the saline-alkali region water resource collection and utilization system containing the permeation well is divided into a plurality of catchment areas, and different catchment areas can be separated by waterproof geotextile reverse wraps; the height of the turn-up is typically more than 50cm above the aquifer.
8. The system for collecting and utilizing the water resource in the saline-alkali region containing the penetration well as recited in claim 1, wherein: the bottom of the water storage well is provided with a water taking pit, and a water taking pipe is arranged at the well mouth of the water storage well and extends into the water taking pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920610448.3U CN210797788U (en) | 2019-04-26 | 2019-04-26 | Saline-alkali region water resource collecting and utilizing system containing permeation well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920610448.3U CN210797788U (en) | 2019-04-26 | 2019-04-26 | Saline-alkali region water resource collecting and utilizing system containing permeation well |
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| Publication Number | Publication Date |
|---|---|
| CN210797788U true CN210797788U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920610448.3U Expired - Fee Related CN210797788U (en) | 2019-04-26 | 2019-04-26 | Saline-alkali region water resource collecting and utilizing system containing permeation well |
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|---|---|
| CN (1) | CN210797788U (en) |
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- 2019-04-26 CN CN201920610448.3U patent/CN210797788U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200619 Termination date: 20210426 |
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| CF01 | Termination of patent right due to non-payment of annual fee |