CN211621499U - Saline-alkali region water resource regulation and storage utilization system with storage seepage pipe - Google Patents

Abstract

The utility model discloses a saline-alkali region water resource regulation and utilization system containing a storage infiltration pipe, which comprises a soil body and a water storage 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 water storage wells are arranged in the soil body at intervals; pebble ditches are arranged on the upper surfaces of the joints of the planting soil layers and the surrounding roads, squares and other structures, and pebbles are filled in the pebble ditches; a water collecting port is formed in the surface of the planting soil layer, a water storage pipe is arranged below the water collecting port of the planting soil layer, the lower part of the water collecting port is communicated with the water storage pipe through a pipeline, and a plurality of seepage pipes are arranged on the side of the water storage pipe; the system can effectively collect rainwater collected into the planting soil layer after rainfall, and can not cause salt return of a saline-alkali soil layer to the planting soil layer; the utility model discloses can also make saline and alkaline land afforestation elevation reduce, reduce the earthwork volume.

Description

Saline-alkali region water resource regulation and storage utilization system with storage seepage pipe

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 regulation and utilization system that contains storage infiltration pipe.

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 very precious fresh water resource, and is particularly difficult to collect and utilize in coastal saline-alkali lands which are seriously lack of water. Due to water shortage of saline-alkali soil, the salinity of 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 × 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 the 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 at least 1.5 meters higher than the highest value of the underground water level, the high-salinity underground water is kept away, the influence of the high-salinity underground water is reduced, the improved soil is ensured not to be salinized, 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 system for regulating, storing and utilizing water resources in saline-alkali regions, which comprises a storage infiltration pipe; the system can effectively collect rainwater of surface runoff of structures such as roads, squares and the like after rainfall and a planting soil layer, can also ensure that the rainwater can continuously moisten the planting soil layer after rainfall, and can not cause the saline-alkali soil layer to return salt 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 system for regulating, storing and utilizing water resources in saline-alkali regions containing storage seepage pipes comprises a soil body and a water storage 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 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 planting soil layer is connected with a surrounding structure (such as a surrounding road or a surrounding square) from a low slope to a high slope; pebble ditches are arranged on the upper surfaces of the joints of the planting soil layers and the surrounding roads, squares and other structures, and pebbles are filled in the pebble ditches; a water collecting port is formed in the surface of the planting soil layer, a sewage intercepting hanging basket is arranged in the water collecting port, a horizontally placed water storage pipe is arranged below the water collecting port of the planting soil layer and is 40-80cm away from the surface of the planting soil layer, the lower part of the water collecting port is communicated with the water storage pipe through a pipeline, a plurality of seepage pipes are arranged on the side of the water storage pipe, and a plurality of fine seepage pipes are arranged on the lower surfaces of the seepage pipes and are downwards inserted into the planting soil layer; 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 water storage 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 storage and regulation utilization system containing the storage and seepage pipe can be divided into a plurality of catchment areas for convenience of management and control, and different catchment areas can be separated by reverse wrapping with waterproof geotextile; 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 saline and alkaline region water resource regulation and utilization system containing storage infiltration pipe can effectively collect structures such as road plaza after rainfall and planting soil layer surface runoff rainwater, can also guarantee that rainwater can continuously moisten planting soil layer after rainfall, and can not lead to saline and alkaline soil layer to return salt to 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.

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 system for adjusting, storing and utilizing water resources in saline-alkali regions with storage and seepage pipes of the present invention comprises a soil body 100 and a water storage 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 6; the hidden pipe 7 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 6 from top to bottom, the wall of the water storage well 200, which is in contact with the water storage layer 3, is of a seepage pipe structure, and the wall of the other part of the water storage well is of a watertight structure;

the planting soil layer 1 is connected with a surrounding structure 300 (such as a surrounding road or a surrounding square) from a low slope direction to a high slope direction; preferably, the slope rate of the drainage slope of the structures such as the surrounding road squares to the planting soil layer is 1% -2%. (ii) a The upper surface of the joint of the edge of the planting soil layer 1 and a peripheral building (such as a road or square surface) is provided with a pebble ditch 10, and pebbles are filled in the pebble ditch 10; the impact on the planting soil layer when the peripheral rainwater is collected is reduced;

a water collecting port 8 is formed in the surface of the planting soil layer 1, a sewage intercepting hanging basket is arranged in the water collecting port, a horizontally placed water storage pipe 9 is arranged below the water collecting port 8 and is 40-80cm away from the surface of the planting soil layer, the lower portion of the water collecting port 8 is communicated with the water storage pipe 9 through a pipeline, a row of transverse seepage pipes 91 are arranged on the side of the water storage pipe 9 and are inserted into the planting soil layer, and a plurality of fine seepage pipes 92 are arranged on the lower surface of each transverse seepage pipe and are downwards inserted into the planting soil layer 1; rainwater from the water collecting port firstly enters the water storage pipe 9 for storage after being intercepted by the pollutant intercepting hanging basket, and slowly permeates into the planting soil layer 1 through the seepage pipe 91 and the fine seepage pipe 92; when the rainwater at the water collecting port is excessive, the rainwater can be communicated with a municipal drainage system through a pipeline to be drained;

in order to prevent the influence of water flow and water seepage on other structures, a lateral waterproof layer 400 is adopted for reverse wrapping at the joint of the water resource storage and utilization system and surrounding buildings or structures in the saline-alkali region containing the storage and seepage pipes.

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 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 7 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 7 are arranged at intervals of 6-8 meters; the concealed pipe 7 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 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 preferred embodiment of the present invention, when the green space is very large, the system for regulating and utilizing the water resource in the saline-alkali region containing the storage infiltration pipe can be divided into a plurality of catchment areas for the convenience of management and control, and the different catchment areas can be separated by the reverse wrapping of the waterproof geotextile; 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 need of automatic drainage of the water storage well 200, an overflow drain pipe 203 may be provided on the well wall, which leads to 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. Saline-alkali region water resource regulation and storage utilization system of containing storage infiltration pipe, its characterized in that: comprises a soil body and a water storage 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 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 the water storage wells extends to the lower part of the groove from top to bottom, the contact part of the well wall of the water storage well and the water storage layer is of a seepage pipe structure, and the well walls of other parts are of a watertight structure; the planting soil layer is connected with a peripheral structure from low to high in a slope direction; pebble ditches are arranged on the upper surfaces of the joints of the planting soil layers and the surrounding roads, squares and other structures, and pebbles are filled in the pebble ditches; a water collecting port is formed in the surface of the planting soil layer, a sewage intercepting hanging basket is arranged in the water collecting port, a horizontally placed water storage pipe is arranged below the water collecting port of the planting soil layer and is 40-80cm away from the surface of the planting soil layer, the lower part of the water collecting port is communicated with the water storage pipe through a pipeline, a plurality of seepage pipes are arranged on the side of the water storage pipe, and a plurality of fine seepage pipes are arranged on the lower surfaces of the seepage pipes and are downwards inserted into the planting soil layer; the joint of the system and the surrounding building or structure adopts a lateral waterproof layer to reversely wrap.

2. The system of claim 1 for adjusting and utilizing the water resources in saline-alkali area, comprising: the thickness of the planting soil layer is 60-140 cm.

3. The system of claim 1 for adjusting and utilizing the water resources in saline-alkali area, comprising: the permeable film layer is a permeable non-woven fabric.

4. The system of claim 1 for adjusting and utilizing the water resources in saline-alkali area, comprising: the aquifer is 18-60cm thick stone chips or broken stones or pp modules.

5. The system of claim 1 for adjusting and utilizing the water resources in saline-alkali area, comprising: 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 water storage well.

6. The system of claim 1 for adjusting and utilizing the water resources in saline-alkali area, comprising: 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 of claim 1 for adjusting and utilizing the water resources in saline-alkali area, comprising: the saline-alkali region water resource regulation and storage utilization system containing the storage seepage pipe is divided into a plurality of catchment areas, and different catchment areas can be separated by reverse wrapping with waterproof geotextile; the height of the turn-up is typically more than 50cm above the aquifer.

8. The system of claim 1 for adjusting and utilizing the water resources in saline-alkali area, comprising: 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.

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