CN104878801B - Convenient gravel cobble permeable layer, its construction process and the cleaning method thereof cleaned - Google Patents
Convenient gravel cobble permeable layer, its construction process and the cleaning method thereof cleaned Download PDFInfo
- Publication number
- CN104878801B CN104878801B CN201510248140.5A CN201510248140A CN104878801B CN 104878801 B CN104878801 B CN 104878801B CN 201510248140 A CN201510248140 A CN 201510248140A CN 104878801 B CN104878801 B CN 104878801B
- Authority
- CN
- China
- Prior art keywords
- gravel
- water
- bed
- boulder bed
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Abstract
A kind of convenient gravel cobble permeable layer, construction process and cleaning method cleaned, the pervious bed that permeable layer includes framework shape and the multifunctional well being vertically arranged, the gravel boulder bed having inside to be provided with water inlet pipe is piled up in pervious bed, the sealing coat being tightly connected with pervious bed is arranged at gravel boulder bed top, during building, sealing coat overlying blanketing cap rock；Extra-fine sand water-bearing layer is stretched in multifunctional well lower end, and multifunctional well is by precipitation tube, filter pipe and manages affixed successively forming in fact, and filter pipe lower end is positioned at Extra-fine sand water-bearing layer, and filter pipe upper end is positioned in layer, and real pipe upper end is stretched out outside horizon。Water pumper water inlet pipe is placed in real pipe, while gravel boulder bed inner water-supply, from multifunctional well to extracardiac pumping, makes formation circulating water flow between gravel boulder bed and multifunctional well, discharge and gravel boulder bed silts thing up。This permeable layer can facilitate and cleans in time, and workable, operating cost is cheap, is the main development direction of water environment treatment from now on。
Description
Technical field
The invention belongs to aquifer cleaning technique field, relate to a kind of convenient gravel cobble permeable layer cleaned；The invention still further relates to the construction process of this gravel cobble permeable layer a kind of and the cleaning method of this gravel cobble permeable layer。
Background technology
Along with the increase of water consumption, the many area amount of groundwater mining over-extraction of China are day by day serious, and shortage occurs in urban life drinking water。In order to increase groundwater resources amount, reduce surface water purified treatment expense, surface water is converted into subsoil water by some areas by every means, guide in the reservoir of groundwater source field upstream seepage, dyke, seepage pit, filter well by surface water, by seepage recharge groundwater, increase groundwater sources allowable exploitation。But filter well individual well infiltration area is typically small, water percolating capacity is limited, need the huge filter well of Quantity and intensified pressure could realize predetermined target, and recharge for a long time and easily produce the phenomenons such as gas phase, float, iron bacteria, electroless Ni-P-C-O plating and water quality degenerate, and invest more, operating cost is too high。
Ground generally all built in by reservoir, river course, dyke, seepage pit, equipment is simple, cost is low, be easy to construction and management, it is easy to cleaning mud, and shortcoming is that infiltration area is bigger, unit are seepage rate is low, water quality is subject to the impact of Various Seasonal temperature Change, it is easy to produce the hole on microorganism clogging weeping formation surface, it is necessary to frequency ground cleans tamper, have impact on infiltration effect, the maintenance cost remaining properly functioning is significantly high。The infiltration of reservoir, dyke, seepage pit is precipitate alluvial blocking mainly, can block clearing from earth's surface。Water injection well seeps water, it is easy to degenerate the problems such as blocking in water injection well and water-bearing layer contact surface and the blocking of wall casing formation Physicochemical, blocking of shaking out, water quality, and the method for process is mainly and strengthens Hui Yang, increase back and raise number of times, shorten back and raise interval；Vacuum back-flow and gap recoil is adopted to carry out block clearing for blocking serious water injection well；Need to carry out adding acid treatment for cementing precipitate；Method blocking of shaking out being generally adopted to draw water well-flushing and artificial stop-off processes。
Summary of the invention
It is an object of the invention to provide a kind of convenient gravel cobble permeable layer cleaned, the surface water of input can not only be changed into gravel cobble water-accumulating body seepage recharge groundwater, increase groundwater resources amount, and can conveniently be carried out in time。
It is a further object to provide the construction process of a kind of above-mentioned gravel cobble permeable layer。
3rd purpose of the present invention is to provide a kind of method that can clean above-mentioned gravel cobble permeable layer in time。
For achieving the above object, the technical solution adopted in the present invention is: a kind of convenient gravel cobble permeable layer cleaned, pervious bed and the multifunctional well being vertically arranged including framework shape, pile up in pervious bed and have gravel boulder bed, it is provided with water inlet pipe in gravel boulder bed, gravel boulder bed top is coated with the sealing coat being tightly connected with pervious bed, during building, and the cover layer of sealing coat overlying hd top face and horizon flush；The lower end of multifunctional well sequentially passes through cover layer, sealing coat, gravel boulder bed, Extra-fine sand aeration zone and phreatic line, stretch in Extra-fine sand water-bearing layer, multifunctional well is by precipitation tube, filter pipe and manages affixed successively forming in fact, filter pipe lower end is positioned at Extra-fine sand water-bearing layer, filter pipe upper end is positioned in layer, and real pipe upper end is stretched out outside horizon。
Another technical scheme of the present invention is: the construction process of a kind of above-mentioned convenient gravel cobble permeable layer cleaned, and specifically sequentially includes the following steps:
Step 1: in the excavation foundation hole, region needing recharge groundwater amount, makes the bottom surface of foundation pit stretch in the Extra-fine sand aeration zone of below infiltration waterline, the distance between foundation pit bottom surface and phreatic line at least 3 meters；
Step 2: from the downward drilling well in foundation pit bottom surface, the bottom making well is stretched in Extra-fine sand water-bearing layer, then, in this bottom, precipitation tube is set, it is arranged above with filter pipe at precipitation tube, filter pipe upper end is positioned at the top of foundation pit end face, and the vertical affixed real pipe in filter pipe upper end, the top of real pipe is positioned at above horizon；
Step 3: seepy material is laid on the sidewall of foundation pit, form pervious bed, then gravel cobble is laid and pile up in the space that pervious bed surrounds, form gravel boulder bed, laying water inlet pipe while gravel cobble is piled up in laying, the end face of gravel boulder bed is higher than infiltration waterline；
Step 4: cover sealing coat at gravel boulder bed end face, the intersection of sealing coat and pervious bed is tightly connected, then cover on sealing coat with Extra-fine sand, form the cover layer of end face and above-ground route flush, filter pipe top is positioned at cover layer, real pipe top is stretched out outside cover layer, completes the building of the cobble permeable layer of convenient cleaning。
The 3rd technical scheme that the present invention adopts is: a kind of method cleaning the above-mentioned convenient gravel cobble permeable layer cleaned, the water inlet pipe of water pumper is placed in real pipe, then pass through water inlet pipe to gravel boulder bed inner water-supply, simultaneously by water pumper from multifunctional well to extracardiac pumping, make to be formed between gravel boulder bed and multifunctional well the cyclic process of current turnover gravel boulder bed, under the effect of circulating water flow, the thing that silts up in gravel boulder bed is poured filter pipe, then discharge gravel boulder bed with current。
Gravel cobble permeable layer boulderet boulder bed of the present invention has the feature that pellet pores is big, seepage velocity fast, radius of influence scope is remote compared with the layer of Extra-fine sand original place, cleaning process can be formed the water circulation body with certain pressure, in gravel boulder bed, water velocity is very fast, impulsive force is utilized to be gone out with current by the material being blocked in gravel boulder bed hole, the beginning time of flow has only to 3 machine-team (work units of well-flushing, 1 machine-team is 8 hours), plenty of time and fund can be saved, create the economic benefit bigger than conventional method and social value。
Accompanying drawing explanation
Fig. 1 is the structural representation of gravel cobble permeable layer of the present invention。
In figure: 1. Extra-fine sand aeration zone, 2. pervious bed, 3. Extra-fine sand water-bearing layer, 4. water inlet pipe, 5. phreatic line, 6. infiltration waterline, 7. gravel boulder bed, 8. sealing coat, 9. above-ground route, 10. precipitation tube, 11. multifunctional wells, 12. real pipes, 13. filter pipes, 14. cover layers。
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail。
Gravel cobble permeable layer is set up at top, the water-bearing layer aeration zone needing infiltration, this permeable layer lithology granule big more than 3 times than thin silt lithology, allow water body be directly entered gravel cobble permeable layer seep water from inside to outside, reduce water body directly to contact with the external world, water body is avoided to produce physical chemistry blocking probability, therefore, gravel cobble permeable layer is mainly mud and clogging deposits。After gravel cobble permeable layer hole is blocked, it is common that the gravel cobble of gravel boulder bed is taken out, backfills again after cleaning, which increase operating cost, the seriality of impact infiltration simultaneously。For solving this problem, the invention provides a kind of convenient gravel cobble permeable layer cleaned as shown in Figure 1, pervious bed 2 and the multifunctional well 11 being vertically arranged including framework shape, pile up in pervious bed 2 and have gravel boulder bed 7, water inlet pipe 4 it is provided with in gravel boulder bed 7, the outlet of water inlet pipe 4 is positioned at the centre position of gravel boulder bed 7, and the water inlet of water inlet pipe 4 connects with conveyer device；Gravel boulder bed 7 top is coated with sealing coat 8, and sealing coat 8 and pervious bed 2 are tightly connected, and sealing coat 8 is coated with the Extra-fine sand cover layer 14 of end face and horizon 9 flush。The lower end of multifunctional well 11 sequentially passes through cover layer 14, sealing coat 8, gravel boulder bed 7, Extra-fine sand aeration zone 1 and phreatic line 5, stretch in Extra-fine sand water-bearing layer 3, multifunctional well 11 is from the bottom up by precipitation tube 10, filter pipe 13 with real pipe 12 is affixed successively forms, the lower end of filter pipe 13 is positioned at Extra-fine sand water-bearing layer 3, the upper end of filter pipe 13 is positioned in layer 14, and the upper end of real pipe 12 is stretched out outside horizon 9。
Pervious bed 2 adopts permeable geotextiles。Sealing coat 8 adopts geomembrane to make。
The invention provides the construction process of a kind of above-mentioned gravel cobble permeable layer, specifically sequentially include the following steps:
Step 1: in the region needing recharge groundwater amount, choose building site, the ground of this building site is water guide lithology to the stratum between phreatic line 5, then excavation foundation hole, the bottom surface making foundation pit is stretched in the Extra-fine sand aeration zone 1 of infiltration waterline less than 6, and the distance between foundation pit bottom surface and phreatic line 5 is at least 3 meters；
Step 2: from the downward drilling well in foundation pit bottom surface, the bottom making well is stretched in Extra-fine sand water-bearing layer 3, then, from this bottom, precipitation tube 10 is set, being arranged above with filter pipe 13 at precipitation tube 10, filter pipe 13 lower end connects with precipitation tube 10, and filter pipe 13 upper end is positioned at the top of foundation pit end face, the vertical affixed real pipe 12 in filter pipe 13 upper end, the top of real pipe 12 is positioned at the top in horizon 9；
Step 3: seepy material is laid on the sidewall of foundation pit, form pervious bed 2, then being laid by the gravel cobble of particle diameter 20～40mm piles up in the space that pervious bed 2 surrounds, form gravel boulder bed 7, while gravel cobble is piled up in laying, lay water inlet pipe 4, make the outlet of water inlet pipe 4 be positioned at the centre position of gravel boulder bed 7；The end face of gravel boulder bed 7 is higher than infiltration waterline 6；
The gravel cobble of particle diameter 20～40mm is bumped in the thin silt of grain diameter 0.1～0.15mm, both grain diameter gap hundreds of times, if do not isolated between which, after running into water, gravel cobble and Extra-fine sand can quickly mix, and cause that the porosity of gravel boulder bed 7 reduces。So the material that setting can be permeable between fine sand layer and gravel boulder bed 7 is as Permeable interlayer, it is to avoid Extra-fine sand granule enters in gravel boulder bed 7, the water in gravel boulder bed 7 just can be penetrated into by Permeable interlayer in the fine sand layer of outside。Permeable interlayer is adopted to replace fluid-tight isolation interlayer between gravel boulder bed 7 and fine sand layer, changing and only being become bottom surface, pond and pool wall face seeped water simultaneously by the infiltration of bottom surface, pond, increase infiltration area more than 2 times, do not affect again that gravel boulder bed hole is big, seepage velocity fast, the remote feature of radius of influence scope simultaneously, increase water percolating capacity, investment reduction cost, increases economic efficiency, and creates bigger social value。
Step 4: cover geomembrane at gravel boulder bed 7 end face, form sealing coat 8, the intersection of sealing coat 8 and pervious bed 2 is tightly connected, to prevent Extra-fine sand from entering gravel boulder bed 7, then covering on sealing coat 8 with Extra-fine sand, form the cover layer 14 of end face and above-ground route 9 flush, filter pipe 13 top is positioned at cover layer 14, real pipe 12 top is stretched out outside cover layer 14, completes the building of the cobble permeable layer of convenient cleaning。
During recharge groundwater amount: first process surface water, make its turbidity less than 5, by conveyer device, the surface water after process is sent into water inlet pipe 4, the water entering water inlet pipe 4 flows into gravel boulder bed 7, the water entering gravel boulder bed 7 enters Extra-fine sand aeration zone 1 by pervious bed 2 and the foundation pit bottom percolation of surrounding, and seepage flow is to Extra-fine sand water-bearing layer 3 runoff under Extra-fine sand aeration zone 1 bottom, waterline located underground 5, around gravel boulder bed 7, in certain limit, form the peripheral high shuiqiu of water-bearing layer water table ratio, reach to raise the purpose of level of ground water。In recharge of ground water process, sealing coat can prevent top fine sand from entering gravel boulder bed 7, pervious bed 2 makes gravel boulder bed 7 and thin silt isolation, pervious bed 2 can allow the water in gravel boulder bed 7 enter in fine sand layer, and fine silt does not enter in gravel boulder bed 7: contact with fine sand layer bottom gravel boulder bed 7, the water body in gravel boulder bed 7 is made to infiltrate directly down, in the gravel boulder bed 7 that the fine sand of bottom does not enter equally under gravity, these measures can prevent fine sand from entering the blocking that gravel boulder bed 7 causes。
Gravel boulder bed 7 is in long-term infiltration process, it may occur that mud blocking and clogging deposits, if blocking is serious and can not get timely cleaning, will affect water percolating capacity and infiltration effect, cause serious economic loss and bad social influence。In order to find infiltration blocking in time and clean gravel boulder bed 7 in time, the multifunctional well 11 in the present invention primarily serves permeable layer and cleans the function of well, water injection well and water level water quality monitoring well。Time properly functioning, the water percolating capacity of gravel boulder bed 7 is detected by multifunctional well 11 SEA LEVEL VARIATION, judge that whether gravel boulder bed 7 is blocked by the change of gravel boulder bed 7 water percolating capacity, if it occur that blocking, the water inlet pipe of water pumper is placed in real pipe 12, then pass through water inlet pipe 4 to gravel boulder bed 7 inner water-supply, simultaneously interior to extracardiac pumping from multifunctional well 11 by water pumper, make to be formed between gravel boulder bed 7 and multifunctional well 11 cyclic process of current turnover gravel boulder bed 7, under the effect of circulating water flow, the material that silts up in gravel boulder bed 7 is poured filter pipe 13, gravel boulder bed 7 is discharged again with current, reach the purpose cleaned。
If gravel boulder bed 7 occurs physical chemistry blocking or change of water quality blocking to take acid adding to carry out cyclic process process of drawing water in light of the circumstances。
Gravel boulder bed 7 is the excessive body that surface water is converted into subsoil water, set up multifunctional well 11 mud and other materials that are deposited in gravel boulder bed 7 in infiltration process effectively to be solved by cleaning wherein, utilize the drift in multipurpose hole washing technology routine cleaning gravel boulder bed 7 and space tamper。
Additionally from process of construction, run operation and the whole process of later maintenance is workable, and operating cost is cheap, remarkable in economical benefits, is the main development direction of water environment treatment from now on。
Such as: convenient for the present invention gravel cobble permeable layer cleaned is applied in " Dunhuang crescent moon lake stage decline Emergency management research " project that 2007 implement, Crescent Spring Mingsha Sand Dunes thin silt involves setting up two infiltration fields, in engineering trail run process, owing to aqueduct successively repeatedly breaks, a large amount of silt is caused to enter in gravel boulder bed 7 with current, serious with water injection well blocking, after implementing cleaning by multifunctional well 11, gravel boulder bed 7 is to the implementation process normal operation that seeped water through 7 years, and Crescent Spring lake stage is stable。Protecting national scenery, social influence is far-reaching。
Claims (7)
1. the convenient gravel cobble permeable layer cleaned, it is characterized in that, including the pervious bed (2) of framework shape and the multifunctional well (11) that is vertically arranged, pile up in pervious bed (2) and have gravel boulder bed (7), water inlet pipe (4) it is provided with in gravel boulder bed (7), gravel boulder bed (7) top is coated with the sealing coat (8) being tightly connected with pervious bed (2), during building, and the cover layer (14) of sealing coat (8) overlying hd top face and horizon (9) flush；The lower end of multifunctional well (11) sequentially passes through cover layer (14), sealing coat (8), gravel boulder bed (7), Extra-fine sand aeration zone (1) and phreatic line (5), stretch in Extra-fine sand water-bearing layer (3), (12) are affixed successively forms by precipitation tube (10), filter pipe (13) and real pipe for multifunctional well (11), filter pipe (13) lower end is positioned at Extra-fine sand water-bearing layer (3), filter pipe (13) upper end is positioned in layer (14), and horizon (9) is stretched out outward in real pipe (12) upper end。
2. the convenient gravel cobble permeable layer cleaned according to claim 1, it is characterised in that described gravel boulder bed (7) adopts the gravel cobble of particle diameter 20～40mm to pile up and forms。
3. the convenient gravel cobble permeable layer cleaned according to claim 1, it is characterised in that described pervious bed (2) adopts permeable geotextiles to make。
4. the convenient gravel cobble permeable layer cleaned according to claim 1, it is characterised in that described sealing coat (8) adopts geomembrane to make。
5. the construction process of the convenient gravel cobble permeable layer cleaned described in a claim 1, it is characterised in that specifically sequentially include the following steps:
Step 1: in the excavation foundation hole, region needing recharge groundwater amount, makes the bottom surface of foundation pit stretch in infiltration waterline (6) Extra-fine sand aeration zone (1) below, the distance at least 3 meters between foundation pit bottom surface and phreatic line (5)；
Step 2: from the downward drilling well in foundation pit bottom surface, the bottom making well is stretched in Extra-fine sand water-bearing layer (3), then, in this bottom, precipitation tube (10) is set, it is arranged above with filter pipe (13) at precipitation tube (10), filter pipe (13) upper end is positioned at the top of foundation pit end face, and the vertical affixed real pipe (12) in filter pipe (13) upper end, the real top managing (12) is positioned at the top of horizon (9)；
Step 3: seepy material is laid on the sidewall of foundation pit, form pervious bed (2), then being laid by gravel cobble piles up in the space that pervious bed (2) surrounds, form gravel boulder bed (7), laying water inlet pipe (4) while gravel cobble is piled up in laying, the end face of gravel boulder bed (7) is higher than infiltration waterline (6)；
Step 4: cover sealing coat (8) at gravel boulder bed (7) end face, the intersection of sealing coat (8) and pervious bed (2) is tightly connected, then cover on sealing coat (8) with Extra-fine sand, form the cover layer (14) of end face and above-ground route (9) flush, filter pipe (13) top is positioned at cover layer (14), cover layer (14) is stretched out outward in real pipe (12) top, completes the building of the cobble permeable layer of convenient cleaning。
6. the construction process of the convenient gravel cobble permeable layer cleaned according to claim 5, it is characterised in that in described step 3, the particle diameter of gravel cobble is 20～40mm。
7. the cleaning method of the convenient gravel cobble permeable layer cleaned described in a claim 1, it is characterized in that, during cleaning, the water inlet pipe of water pumper is placed in real pipe (12), then pass through water inlet pipe (4) to gravel boulder bed (7) inner water-supply, simultaneously interior to extracardiac pumping from multifunctional well (11) by water pumper, make to be formed between gravel boulder bed (7) and multifunctional well (11) cyclic process of current turnover gravel boulder bed (7), under the effect of circulating water flow, the thing that silts up in gravel boulder bed (7) is poured filter pipe (13), then discharge gravel boulder bed (7) with current。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510248140.5A CN104878801B (en) | 2015-05-15 | 2015-05-15 | Convenient gravel cobble permeable layer, its construction process and the cleaning method thereof cleaned |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510248140.5A CN104878801B (en) | 2015-05-15 | 2015-05-15 | Convenient gravel cobble permeable layer, its construction process and the cleaning method thereof cleaned |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104878801A CN104878801A (en) | 2015-09-02 |
| CN104878801B true CN104878801B (en) | 2016-06-22 |
Family
ID=53946462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510248140.5A Expired - Fee Related CN104878801B (en) | 2015-05-15 | 2015-05-15 | Convenient gravel cobble permeable layer, its construction process and the cleaning method thereof cleaned |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104878801B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505214A (en) * | 2018-11-30 | 2019-03-22 | 苏州国通建设工程有限公司 | A kind of silt section road foundation ecological drainage system and construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2722339B2 (en) * | 1995-07-21 | 1998-03-04 | 三備工業株式会社 | Structure of buried part of catchment culvert and construction method of protection floor work |
| CN203145030U (en) * | 2013-03-22 | 2013-08-21 | 中交第一公路勘察设计研究院有限公司 | Water cut-off and drainage system for permafrost tunnel side upward slope and cutting slope |
| CN203923839U (en) * | 2014-06-03 | 2014-11-05 | 张秋英 | Road surface, a kind of permeable gardens |
| CN204059328U (en) * | 2014-09-04 | 2014-12-31 | 西藏民族学院 | A kind of from catchmenting sand consolidation with biologic device |
| CN104313974A (en) * | 2014-10-15 | 2015-01-28 | 上海交通大学 | Ecological grass planting trench for cities with rich water resource |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6047003B2 (en) * | 2012-12-14 | 2016-12-21 | 日立造船株式会社 | Filtration sand layer cleaning system |
-
2015
- 2015-05-15 CN CN201510248140.5A patent/CN104878801B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2722339B2 (en) * | 1995-07-21 | 1998-03-04 | 三備工業株式会社 | Structure of buried part of catchment culvert and construction method of protection floor work |
| CN203145030U (en) * | 2013-03-22 | 2013-08-21 | 中交第一公路勘察设计研究院有限公司 | Water cut-off and drainage system for permafrost tunnel side upward slope and cutting slope |
| CN203923839U (en) * | 2014-06-03 | 2014-11-05 | 张秋英 | Road surface, a kind of permeable gardens |
| CN204059328U (en) * | 2014-09-04 | 2014-12-31 | 西藏民族学院 | A kind of from catchmenting sand consolidation with biologic device |
| CN104313974A (en) * | 2014-10-15 | 2015-01-28 | 上海交通大学 | Ecological grass planting trench for cities with rich water resource |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104878801A (en) | 2015-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102051886B (en) | Light well point drainage construction technology | |
| CN201952806U (en) | Light-duty well-points dewatering construction device | |
| CN106522306A (en) | Riverside underground water recharging system with composite functions of charging and pumping | |
| CN106592756A (en) | Karst region step-type basement water drainage structure and construction method thereof | |
| CN104695506A (en) | Ground surface sunken submerged filter tank infiltrating water intake method and system | |
| CN110735468A (en) | underground water cross-flow supply recharging system combined with irrigation channels and irrigation wells | |
| CN103266633A (en) | Seepage-proof sewage discharging and floodwater draining method for tailing reservoir in wet metallurgy | |
| Hunt et al. | Conceptual design of riverbank filtration systems | |
| Stevanovic | Utilization and regulation of springs | |
| CN110565738A (en) | Utilize corridor formula groundwater recharge system that catchments of rainfall flood resource | |
| CN103343690A (en) | Shaft antiseep structure used when large section of inclined shaft passes through aquifer and construction method thereof | |
| CN206129244U (en) | Colliery water resources regionalization is mining system in advance | |
| CN104878801B (en) | Convenient gravel cobble permeable layer, its construction process and the cleaning method thereof cleaned | |
| CN210737511U (en) | Tower type groundwater pressure recharge equipment | |
| CN104196005B (en) | A kind of anticlogging aquifer recharge device | |
| CN206396830U (en) | It is a kind of have fill put forward complex function be close to river water recharge system | |
| CN204139151U (en) | A kind of aquifer recharge device of high efficient block | |
| CN203429651U (en) | Ultra-large type deep foundation pit drainage system applied to littoral facies geological stratification area | |
| KR100964741B1 (en) | Intake structure for preventing underground water pollution | |
| CN104975610A (en) | Expanded-end decompression well, deep foundation pit structure and construction method for expanded-end decompression well | |
| CN104846917B (en) | Gravel cobble permeable layer in thin silt and construction process thereof | |
| RU2622971C1 (en) | Mine drainage during development of anticlinal coal deposits by combined method | |
| CN110663512B (en) | Water-saving surface irrigation and low-pressure underground pipe network recharging and supplementary mining coupling system for super mining area | |
| CN210827669U (en) | Utilize corridor formula groundwater recharge system device that catchments of rainfall flood resource | |
| CN110616772B (en) | Recharge system for rainwater storage and monitoring and construction method of recharge system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 |