CN106385829A - Underground-pipe combined mechanism used for discharging salt in saline-alkali land - Google Patents
Underground-pipe combined mechanism used for discharging salt in saline-alkali land Download PDFInfo
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- CN106385829A CN106385829A CN201610754436.9A CN201610754436A CN106385829A CN 106385829 A CN106385829 A CN 106385829A CN 201610754436 A CN201610754436 A CN 201610754436A CN 106385829 A CN106385829 A CN 106385829A
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- Prior art keywords
- hidden pipe
- pipe
- tube wall
- arm
- layer
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B77/00—Machines for lifting and treating soil
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/06—Watering arrangements making use of perforated pipe-lines located in the soil
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses an underground-pipe combined mechanism used for discharging salt in a saline-alkali land, belonging to the technical field of engineering drainage in the saline-alkali land. The underground-pipe combined mechanism comprises a main underground pipe, wherein the left side, the right side and the top part of the main underground pipe are respectively and obliquely provided with a connector; the connectors located at the left side and the right side of the main underground pipe are respectively connected with a branch underground pipe through a connecting device; the connector located at the top part of the main underground pipe is connected with a vertical branch pipe through a connecting device; and the left side and the right side of the vertical branch pipe are respectively and obliquely provided with a sub-branch pipe. The underground-pipe combined mechanism provided by the invention has the advantages of simple structure, convenient use, and strong practicability and novelty; the branch underground pipes and the sub-branch pipes are in staggered arrangement, so the disadvantages of traditional symmetrical arrangement are avoided; the inner cavity of each connecting device is provided with a filtering device, so soil or foreign matters in the branch underground pipes and the vertical branch pipe may not enter the main underground pipe, and clogging of the main underground pipe is prevented; and the outer side of each pipeline is provided with a plurality of filtering and water-permeable layers, so the soil or the foreign matters can be effectively prevented from entering pipelines through water-permeable micropores.
Description
Technical field
The present invention relates to salt-soda soil engineering drainage technical field, specially a kind of salt-soda soil salt discharge hidden pipe combined mechanism.
Background technology
The method being presently used for improveing salt-soda soil has a lot, common are plantation Salt And Alkali Tolerance crop varieties, applying organic manure
Improved soil, is excavated bright ditch with sharp draining and desalination, is intercepted using plastic sheeting saline and alkaline, be exactly also by laying french drain or dark
Bank of tubes water desalination.
Hidden pipe salt discharge technology is by embedded underground hidden pipe, will be embedded in 1 meter about of underground by hidden pipe, it is to avoid take agricultural
Land used, is rinsed to more than hidden pipe layer containing saline-alkali soil using irrigation water, rainwater, too high salinity, same time control in exclusion soil
Level of ground water processed, in certain depth, prevents anti-salt upwards, thus providing good edaphic condition for plant growing, administers effect with it
Fruit is obvious, the improvement cycle is shorter, later maintenance and management are favored by people the features such as simple, has developed into a kind of ratio at present
The technical measures in more ripe improvement salt-soda soil.
But existing hidden pipe is unreasonable due to structure design, the flow velocity of current can be affected, affect salt discharge effect, drainage
The inefficiency of salt, and it is responsible for seam with arm and end portion treatment is improper, lead to soil particle or debris easily from hidden pipe
Seam and end enter hidden pipe pipeline, pipeline can be caused in the case of life-time service to silt up so that draining salt discharge ability fall
Low.
Content of the invention
It is an object of the invention to provide a kind of salt-soda soil salt discharge hidden pipe combined mechanism, to solve in above-mentioned background technology
The existing hidden pipe proposing is unreasonable due to structure design, can affect the flow velocity of current, affects salt discharge effect, the effect of draining salt discharge
Rate is low, easily blocks the problem of hidden pipe.
For achieving the above object, the present invention provides following technical scheme：A kind of salt-soda soil salt discharge hidden pipe combined mechanism, bag
Include main hidden pipe, the left side of described main hidden pipe, right side and top all tilt to be provided with interface, interface described in the left and right sides is all by connecting
Device is connected with a hidden pipe, and interface described in top is connected with vertical arm, the left and right two of described vertical arm by attachment means
Side is all tiltedly installed with time arm, described main hidden pipe, the tube wall of hidden pipe, vertical arm and secondary arm is provided with infiltration micro-
Hole.
Preferably, described interface and horizontal angle are between five degree to 15 degree, and what described arm interlocked is arranged on
The left and right sides of main hidden pipe, described arm and horizontal angle are between five degree to 15 degree, and described arm interlocks
It is arranged on the left and right sides of vertical arm, described vertical arm is arranged on the top of two groups of main hidden pipes propping up between hidden pipe.
Preferably, described main hidden pipe, a hidden pipe, vertical arm and secondary arm all include PE tube layer, outside described PE tube layer
Wall is provided with soft layer of silica gel, and the outer wall of described softness layer of silica gel is provided with abrasive rubber layer.
Preferably, described main hidden pipe, the outside of hidden pipe, vertical arm and secondary arm are provided with permeable film layer, described
The outside of permeable film layer is provided with dressing layer, and the outside of described dressing layer is provided with geotextiles pervious bed, and described geotextiles are permeable
The outside of layer is provided with permeable layer.
Preferably, described permeable film layer is the permeable film layer of non-woven fabrics, and described dressing layer is PVC or PE granulation material or haydite
Layer, described permeable layer is rubble or coarse sand granulosa.
Preferably, described attachment means include the second tube wall, and the outside of described second tube wall is provided with the first tube wall, described
Form grafting chamber between first tube wall and the second tube wall, pass through circular connecting portion between described first tube wall and the second tube wall even
Connect, and circular connecting portion is arranged on the middle part of grafting chamber, the top of described first tube wall is with circular connecting portion for symmetrical centre pair
Title is provided with steam vent, and steam vent close circle connecting portion, and the inner chamber of described second tube wall is provided with defecator, described filtration
Device includes circular piece, and the left and right sides of described circular piece is provided with circular filter screen, and described circular piece is provided with through hole.
Preferably, described main hidden pipe, the opening of hidden pipe, vertical arm and secondary arm be provided with matching
Attachment means, and the size of attachment means is adapted to the diameter of main hidden pipe, hidden pipe, vertical arm and secondary arm respectively.
Preferably, described in two groups, a hidden pipe is connected with each other by connecting tube.
Preferably, described connecting tube includes inner tubal wall, and the outside of said inner tube wall is provided with outer tube wall, said inner tube wall with
Formed between outer tube wall and connect cavity, be connected by linkage section between described outer tube wall and inner tubal wall, and linkage section is arranged on even
Connect the middle part of cavity, the top of described outer tube wall is arranged with venthole with linkage section for symmetrical centre, and venthole is near even
Connect section.
Compared with prior art, the invention has the beneficial effects as follows：Present configuration is simple, easy to use, and design is ingenious, makes
With reliability, there is very strong practicality and novelty, hidden pipe and time arm are to be crisscross arranged, it is to avoid conventional symmetrical is arranged
Drawback, when that is, current are larger, can influence each other, and reduce water velocity, and using more convenient hidden pipe of attachment means, vertically
Connection between arm and main hidden pipe, the defecator of attachment means inner chamber setting is so that silt in hidden pipe, vertical arm
Will not enter to become owner of hidden pipe Deng debris, prevent the blocking of main hidden pipe, and main hidden pipe, a hidden pipe, vertical arm and secondary arm is outer
Side is provided with multiple filtration permeable layer, can effectively prevent soil or debris from passing through the micropore entrance pipeline that seeps water.
Brief description
Fig. 1 is present configuration schematic diagram；
Fig. 2 is present configuration top view；
Fig. 3 is the main hidden pipe of the present invention, the schematic cross-section of hidden pipe, vertical arm and secondary arm；
Fig. 4 is embedded in schematic cross-section during underground for inventive pipeline；
Fig. 5 is attachment means schematic cross-section of the present invention；
Fig. 6 is defecator schematic cross-section of the present invention；
Fig. 7 is circular piece structural representation of the present invention；
Fig. 8 connected by connecting tube for the present invention after schematic diagram；
Fig. 9 is the schematic cross-section of connecting tube of the present invention.
In figure：1 main hidden pipe, 2 interfaces, 3 attachment means, 31 first tube walls, 32 grafting chambers, 33 second tube walls, 34 circles are even
Socket part, 35 steam vents, 36 defecators, 361 circular piece, 362 circular filter screens, 363 through holes, 4 hidden pipes, 5 infiltration micropores, 6 erect
Allotment pipe, 7 arms, 8PE tube layer, 9 soft layer of silica gel, 10 abrasive rubber layers, 11 permeable film layers, 12 dressing layers, 13 geotextiles
Pervious bed, 14 permeable layers, 15 connecting tubes, 151 outer tube walls, 152 connection cavitys, 153 inner tubal walls, 154 linkage sections, 155 ventholes.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Refer to Fig. 1-9, the present invention provides a kind of technical scheme：A kind of salt-soda soil salt discharge hidden pipe combined mechanism, including
Main hidden pipe 1, the left side of described main hidden pipe 1, right side and top all tilt to be provided with interface 2, and interface 2 described in the left and right sides is all by even
Connection device 3 is connected with a hidden pipe 4, and interface 2 described in top is connected with vertical arm 6, described vertical arm 6 by attachment means 3
The left and right sides be all tiltedly installed with time arm 7, on described main hidden pipe 1, the tube wall of hidden pipe 4, vertical arm 6 and secondary arm 7
It is provided with infiltration micropore 5.
Wherein, described interface 2 and horizontal angle are between five degree to 15 degree, and what described arm 4 interlocked is arranged on
The left and right sides of main hidden pipe 1, described arm 7 and horizontal angle are between five degree to 15 degree, and described time arm 7 interlocks
The left and right sides being arranged on vertical arm 6, in order that hidden pipe 4, secondary arm 7 have certain angle of inclination, in the work of gravity
With under facilitate draining, being crisscross arranged can prevent from being formed when current are larger liquidates, thus affecting drainage effect, described vertical arm
6 tops being arranged on two groups of main hidden pipes 1 propping up between hidden pipe 4, improve draining salt discharge effect, described main hidden pipe 1, hidden pipe 4, perpendicular
Allotment pipe 6 and time arm 7 all include PE tube layer 8, the intensity of raising pipeline, heat-resisting quantity, corrosion resistance, have nontoxic, wear-resisting
Feature, the outer wall of described PE tube layer 8 is provided with soft layer of silica gel 9, and the outer wall of described softness layer of silica gel 9 is provided with abrasive rubber
Layer 10, improves the impact resistance of pipeline, improves the wearability of pipeline further, prevents pipeline from damaging in use, described
Main hidden pipe 1, the outside of hidden pipe 4, vertical arm 6 and secondary arm 7 are provided with permeable film layer 11, filter the debris such as silt, institute
The outside stating permeable film layer 11 is provided with dressing layer 12, filters the debris such as silt, the outside of described dressing layer 12 is provided with geotechnique
Cloth pervious bed 13, in order to filter the debris such as silt, the outside of described geotextiles pervious bed 13 is provided with permeable layer 14, mistake further
The debris such as filter mud sand, described permeable film layer 11 is the permeable film layer of non-woven fabrics, and described dressing layer 12 is PVC or PE granulation material or haydite
Layer, described permeable layer 14 is rubble or coarse sand granulosa, using multiple filtration permeable layer, can effectively prevent the debris such as silt from passing through to ooze
Water micropore 5 enters pipeline, and described attachment means 3 include the second tube wall 33, and the outside of described second tube wall 33 is provided with first pipe
Wall 31, forms grafting chamber 32 between described first tube wall 31 and the second tube wall 33, its one end is connected with interface 2, and interface 2 insertion is inserted
Connect in chamber 32, a hidden pipe 4, vertical arm 6 and secondary arm 7 insert the other end of grafting chamber 32, described first tube wall 31 and second
Pass through circular connecting portion 34 between tube wall 33 to connect, grafting chamber 32 is separated into two parts, and by the first tube wall 31 and second pipe
Wall 33 couples together, and circular connecting portion 34 is arranged on the middle part of grafting chamber 32, and the top of described first tube wall 31 is connected with circular
Socket part 34 is arranged with steam vent 35 for symmetrical centre, and steam vent 35, near circle connecting portion 34, facilitates grafting chamber 32 interpolation
When entering pipeline, air-out, thus improving bonding strength, the inner chamber of described second tube wall 33 is provided with defecator 36, can mistake
The debris such as filter mud sand, described defecator 36 includes circular piece 361, and the left and right sides of described circular piece 361 is provided with circle
Filter screen 362, described circular piece 361 is provided with through hole 363, described main hidden pipe 1, a hidden pipe 4, vertical arm 6 and secondary arm 7
Opening is provided with attachment means 3 with matching, and the size of attachment means 3 respectively with main hidden pipe 1, hidden pipe 4, perpendicular
The diameter adaptation of allotment pipe 6 and time arm 7, such attachment means 3 just can be inserted into the opening of these pipelines, thus preventing silt
Enter pipeline Deng debris from opening, described in two groups, a hidden pipe 4 is connected with each other by connecting tube 15, conveniently of the present invention group is combined in
Together, form drainage pipeline networks, described connecting tube 15 includes inner tubal wall 153, and the outside of said inner tube wall 153 is provided with outer tube wall
151, formed between said inner tube wall 153 and outer tube wall 151 and be connected cavity 152, between described outer tube wall 151 and inner tubal wall 153
Connected by linkage section 154, and linkage section 154 is arranged on the middle part connecting cavity 152, the top of described outer tube wall 151 is with even
Connect section 154 and be arranged with venthole 155 for symmetrical centre, air-out when convenient hidden pipe 4 insertion connects cavity 152, thus
Improve bonding strength, and venthole 155 is near linkage section 154.
Operation principle：During use, salt ground water is through permeable layer 14, geotextiles pervious bed 13, dressing layer 12 and permeable
Film layer 11 filters out the debris such as silt, and then salt ground water is entered to become owner of hidden pipe 1, a hidden pipe 4, vertically propped up by the micropore 5 that seeps water
In pipe 6 and time arm 7, the salt ground water in secondary arm 7 enters in vertical arm 6, containing in vertical arm 6 and a hidden pipe 4
Salt subsoil water enters to become owner of in hidden pipe 1, discharges finally by main hidden pipe 1, and vertical arm 6 is arranged on vertical arm 6 left side with staggered
The secondary arm 7 of right both sides effectively increases the efficiency of draining salt discharge, the left and right sides being arranged on main hidden pipe 1 that a hidden pipe 4 interlocks,
Equally improve the efficiency of draining salt discharge, a hidden pipe 4, vertical arm 6 pass through attachment means 3 and be fixed on connecing on main hidden pipe 1
Mouth 2 connects so that connecting more convenient, the defecator 36 in attachment means 3 may filter that the debris such as silt, prevents blocking master
Hidden pipe 1, and the present invention also can be connected with each other by connecting tube 15, constitute drainage pipeline networks so that the efficiency of draining greatly improves.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and can carry out multiple changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (9)
1. a kind of salt-soda soil salt discharge hidden pipe combined mechanism, including main hidden pipe (1) it is characterised in that：A left side for described main hidden pipe (1)
Side, right side and top all tilt to be provided with interface (2), and interface (2) described in the left and right sides is all connected with by attachment means (3) and props up secretly
Pipe (4), interface (2) described in top is connected with vertical arm (6), the left and right two of described vertical arm (6) by attachment means (3)
Side is all tiltedly installed with time arm (7), described main hidden pipe (1), the tube wall of a hidden pipe (4), vertical arm (6) and time arm (7)
On be provided with infiltration micropore (5).
2. a kind of salt-soda soil salt discharge according to claim 1 with hidden pipe combined mechanism it is characterised in that：Described interface (2)
And horizontal angle is between five degree to 15 degree, the left and right sides being arranged on main hidden pipe (1) that described arm (4) is interlocked,
Described arm (7) and horizontal angle are between five degree to 15 degree, and described staggered being arranged on of arm (7) is vertically propped up
The left and right sides of pipe (6), described vertical arm (6) is arranged on the top of two groups of main hidden pipes (1) propping up between hidden pipe (4).
3. a kind of salt-soda soil salt discharge according to claim 1 with hidden pipe combined mechanism it is characterised in that：Described main hidden pipe
(1), prop up hidden pipe (4), vertical arm (6) and time arm (7) and all include PE tube layer (8), the outer wall of described PE tube layer (8) is provided with
Soft layer of silica gel (9), the outer wall of described softness layer of silica gel (9) is provided with abrasive rubber layer (10).
4. a kind of salt-soda soil salt discharge according to claim 1 with hidden pipe combined mechanism it is characterised in that：Described main hidden pipe
(1) outside, propping up hidden pipe (4), vertical arm (6) and time arm (7) is provided with permeable film layer (11), described permeable film layer
(11) outside is provided with dressing layer (12), and the outside of described dressing layer (12) is provided with geotextiles pervious bed (13), described soil
The outside of work cloth pervious bed (13) is provided with permeable layer (14).
5. a kind of salt-soda soil salt discharge according to claim 4 with hidden pipe combined mechanism it is characterised in that：Described permeable film layer
(11) it is the permeable film layer of non-woven fabrics, described dressing layer (12) is PVC or PE granulation material or haydite layer, described permeable layer (14) is broken
Stone or coarse sand granulosa.
6. a kind of salt-soda soil salt discharge according to claim 1 with hidden pipe combined mechanism it is characterised in that：Described attachment means
(3) include the second tube wall (33), the outside of described second tube wall (33) is provided with the first tube wall (31), described first tube wall (31)
Form grafting chamber (32) and the second tube wall (33) between, between described first tube wall (31) and the second tube wall (33), pass through circular company
Socket part (34) connects, and circular connecting portion (34) is arranged on the middle part of grafting chamber (32), the top of described first tube wall (31) with
Circular connecting portion (34) is arranged with steam vent (35) for symmetrical centre, and steam vent (35) is near circle connecting portion (34), institute
The inner chamber stating the second tube wall (33) is provided with defecator (36), and described defecator (36) includes circular piece (361), described circle
The left and right sides of shape piece (361) is provided with circular filter screen (362), and described circular piece (361) is provided with through hole (363).
7. a kind of salt-soda soil salt discharge according to claim 1 with hidden pipe combined mechanism it is characterised in that：Described main hidden pipe
(1) opening, propping up hidden pipe (4), vertical arm (6) and time arm (7) is provided with attachment means with matching (3),
And the size of attachment means (3) is suitable with the diameter of main hidden pipe (1), a hidden pipe (4), vertical arm (6) and time arm (7) respectively
Join.
8. a kind of salt-soda soil salt discharge according to claim 1 with hidden pipe combined mechanism it is characterised in that：Prop up dark described in two groups
Pipe (4) is connected with each other by connecting tube (15).
9. a kind of salt-soda soil salt discharge according to claim 8 with hidden pipe combined mechanism it is characterised in that：Described connecting tube
(15) include inner tubal wall (153), the outside of said inner tube wall (153) is provided with outer tube wall (151), said inner tube wall (153) with
Formed between outer tube wall (151) and connect cavity (152), between described outer tube wall (151) and inner tubal wall (153), pass through linkage section
(154) connect, and linkage section (154) is arranged on the middle part connecting cavity (152), the top of described outer tube wall (151) is to connect
Section (154) is arranged with venthole (155) for symmetrical centre, and venthole (155) is near linkage section (154).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610754436.9A CN106385829A (en) | 2016-08-29 | 2016-08-29 | Underground-pipe combined mechanism used for discharging salt in saline-alkali land |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610754436.9A CN106385829A (en) | 2016-08-29 | 2016-08-29 | Underground-pipe combined mechanism used for discharging salt in saline-alkali land |
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| Publication Number | Publication Date |
|---|---|
| CN106385829A true CN106385829A (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610754436.9A Pending CN106385829A (en) | 2016-08-29 | 2016-08-29 | Underground-pipe combined mechanism used for discharging salt in saline-alkali land |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106797723A (en) * | 2017-04-02 | 2017-06-06 | 北京军秀咨询有限公司 | A kind of alkaline land improving system and modification method |
| CN106988285A (en) * | 2017-05-23 | 2017-07-28 | 中国水利水电科学研究院 | A kind of subdrainage hidden pipe attachment means |
| CN107439077A (en) * | 2017-06-23 | 2017-12-08 | 福建省春天生态科技股份有限公司 | A kind of method of cell salt-soda soil comprehensive improvement |
| CN108293850A (en) * | 2017-12-18 | 2018-07-20 | 潍坊友容实业有限公司 | Buried salt-soda soil, which plants trees, uses desalinization of soil by flooding or leaching irrigation system |
| CN108781577A (en) * | 2018-07-03 | 2018-11-13 | 武汉轻工大学 | A kind of nanotube capillaries-hidden pipe joint soil Salt discharge method |
| CN109588186A (en) * | 2018-12-05 | 2019-04-09 | 天津市德宇生物工程技术有限公司 | Isolated planting tree plantation technique |
| CN109618884A (en) * | 2018-10-30 | 2019-04-16 | 华北水利水电大学 | A kind of phreatic water seepage flow catchments hidden pipe structure |
| CN109811866A (en) * | 2019-02-22 | 2019-05-28 | 中国水利水电科学研究院 | The closed drainage equipment of waterlogged region |
| CN110603918A (en) * | 2019-10-28 | 2019-12-24 | 苏州金螳螂园林绿化景观有限公司 | Soil pipeline salt elimination improvement system and salt elimination method |
| CN114303504A (en) * | 2021-12-30 | 2022-04-12 | 上海孙桥溢佳农业技术股份有限公司 | Water collecting and draining device and saline-alkali soil improvement method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106797723A (en) * | 2017-04-02 | 2017-06-06 | 北京军秀咨询有限公司 | A kind of alkaline land improving system and modification method |
| CN106988285A (en) * | 2017-05-23 | 2017-07-28 | 中国水利水电科学研究院 | A kind of subdrainage hidden pipe attachment means |
| CN107439077A (en) * | 2017-06-23 | 2017-12-08 | 福建省春天生态科技股份有限公司 | A kind of method of cell salt-soda soil comprehensive improvement |
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| CN108781577B (en) * | 2018-07-03 | 2020-11-20 | 武汉轻工大学 | Nano capillary-concealed pipe combined soil salt elimination method |
| CN109618884A (en) * | 2018-10-30 | 2019-04-16 | 华北水利水电大学 | A kind of phreatic water seepage flow catchments hidden pipe structure |
| CN109618884B (en) * | 2018-10-30 | 2021-12-10 | 华北水利水电大学 | Shallow groundwater seepage flow collection hidden pipe structure |
| CN109588186A (en) * | 2018-12-05 | 2019-04-09 | 天津市德宇生物工程技术有限公司 | Isolated planting tree plantation technique |
| CN109588186B (en) * | 2018-12-05 | 2021-09-14 | 天津市德宇生物工程技术有限公司 | Planting process of lonely planted tree |
| CN109811866A (en) * | 2019-02-22 | 2019-05-28 | 中国水利水电科学研究院 | The closed drainage equipment of waterlogged region |
| CN109811866B (en) * | 2019-02-22 | 2020-05-19 | 中国水利水电科学研究院 | Hidden pipe drainage equipment for treating waterlogging |
| CN110603918A (en) * | 2019-10-28 | 2019-12-24 | 苏州金螳螂园林绿化景观有限公司 | Soil pipeline salt elimination improvement system and salt elimination method |
| CN114303504A (en) * | 2021-12-30 | 2022-04-12 | 上海孙桥溢佳农业技术股份有限公司 | Water collecting and draining device and saline-alkali soil improvement method |
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Application publication date: 20170215 |