CN206570765U - Hydraulic Projects antiseepage exhaust apparatus - Google Patents
Hydraulic Projects antiseepage exhaust apparatus Download PDFInfo
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- CN206570765U CN206570765U CN201720141108.1U CN201720141108U CN206570765U CN 206570765 U CN206570765 U CN 206570765U CN 201720141108 U CN201720141108 U CN 201720141108U CN 206570765 U CN206570765 U CN 206570765U
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- Prior art keywords
- impervious barrier
- antiseepage
- exhaust passage
- hydrophobic membrane
- microporous hydrophobic
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Abstract
The utility model is related to a kind of Hydraulic Projects antiseepage exhaust apparatus, it is characterised in that：The device is to use microporous hydrophobic membrane（1）As thin central layer, in microporous hydrophobic membrane（1）Top laying geotextile（6）The first impervious barrier is built, the first impervious barrier is laid on ground（2）Backfill exhaust passage above top surface, the first impervious barrier（3）, exhaust passage（3）Top covering geotextile builds backfill material on the second impervious barrier, the second impervious barrier to form ballast layer（4）, and which part exhaust passage protuberance, swell elevation and be higher than ballast layer (4).The utility model is exactly the core component that microporous hydrophobic membrane is used as to Hydraulic Projects impervious barrier, by rational corollary apparatus, realizes that the anti-of soil property impervious barrier blends airing function；Overcome existing common antiseepage film can only antiseepage, it is impossible to the defect of exhaust.
Description
Technical field
The utility model belongs to Hydraulic Projects antiseepage field, more particularly to has antiseepage, exhaust work(in Hydraulic Projects seepage prevention system concurrently
Can be in the method for one.This method is mainly used in Hydraulic Projects seepage prevention system, solves impervious body lower floor（Or outer layer）Gas
Aggregation, boosting, gas explosion, impervious body, and the engineering roadblock for triggering water body largely to leak finally are destroyed, while the present invention can also pass through
Its permeation functions, opposite side is discharged into by the part steam of its side, conserves soil, maintains lower section ecological；By the part of side
Air is discharged into opposite side, keeps the molten tolerance of accumulation water body.
Background technology
Retaining, retaining works in Hydraulic Projects often relate to dash and antiseepage.Typically set in the bottom that may occur seepage
Impervious body is put, the impervious body of wherein soil property, which has concurrently, to be prevented blending airing function, but often because soil property factor, soil property impervious body
Infiltration coefficient is bigger than normal, and anti-seepage effect is not good；Existing common antiseepage film impervious body has good anti-seepage effect, but does not possess
Airing function；The gas of on the downside of impervious body or outside aggregation is pressurized and occurs sudden gas explosion destruction often, causes impervious barrier to break
Split and topple, a large amount of water bodys can be revealed, particularly with regulating reservoir and malicious water sewage accumulation pond, serious consequence can be caused.
Have no alternative but in engineering once with check valve, the method such as vacuumize and handle gas explosion destruction problem, but check valve can be because silt
Alluvial, debris failure the problems such as invade；Vacuumizing scheme can be because of the vacuum environment that closing can not be formed on the outside of antiseepage film
Failure, once valve body can not the failure of self-closing, bleed air system, not only problem fails to be addressed, and generation is substantially increased on the contrary
The probability of accident, current field of civil engineering still lacks effective engineering scheme to solve the above problems, the present invention
Brand-new method and apparatus are constructed based on hydrophobicity new material, it is possible to achieve impervious barrier reaches while antiseepage is met
The target of pressed gas, solves the problem of pressed gas is difficult to eliminate under impervious barrier in Hydraulic Projects under to discharge impervious barrier.It is poly-
Tetrafluoroethene abbreviation PTFE, is commonly called as King, and with many excellent and stable physicochemical characteristics, it has higher melt
Point, stronger structural strength, extremely low coefficient of friction and obvious hydrophobic（Not wellability）Characteristic, it is cheap；It is main at present
Applied to fields such as structure, insulation, sealing, filtering, medicine equipments.
The content of the invention
Because PTFE has extremely strong hydrophobic property, water body can not infiltrate its surface.Water body in PTFE film surfaces and its
Complete outer surface is kept at micropore, under pressure water action, the presence based on surface tension can form micro- at its micropore
Small bubble point, the surface tension formation internal pressure of small bubble point balances each other with external water pressure, within certain pressure range, bubble point
Diameter can diminish with the increase of pressure, untill bubble point diameter is equal to the equivalent diameter of micropore.And gas is in air pressure etc.
In or more than can easily pass through the micropore of PTFE microporous barriers in the case of water body pressure at film, therefore polytetrafluoroethylene (PTFE) is micro-
Pore membrane has the characteristic of permeable watertight.Surface tension based on water and the different size of micropore size that can be produced at present,
By calculating, the micropore bubble point pressure of 0.01 micron diameter is 30Mpa, and the micropore bubble point pressure of 0.1 micron diameter is 3Mpa, this
One characteristic is fully able to meet the filling water head of hydraulic engineering, can act as the impervious barrier in engineering, realizes and prevents blending exhaust pair
Weight function.The present invention is exactly the core component that microporous hydrophobic membrane is used as to Hydraulic Projects impervious barrier, by rational corollary apparatus, real
Existing the anti-of soil property impervious barrier blends airing function；Overcome existing common antiseepage film can only antiseepage, it is impossible to the defect of exhaust.This reality
Technical scheme with new use is as follows：
Device one, a kind of Hydraulic Projects antiseepage exhaust apparatus, it is characterised in that：The device is as the thin heart with microporous hydrophobic membrane
Layer, builds the first impervious barrier, the first impervious barrier is laid on ground top surface, first in the top laying geotextile of microporous hydrophobic membrane
Covering geotextile builds the second impervious barrier, the second impervious barrier last time above backfill exhaust passage, exhaust passage above impervious barrier
The material that bankets forms ballast layer, and which part exhaust passage is swelled, and protuberance elevation is higher than ballast layer.Geotextile is to micropore
Hydrophobic membrane plays a protective role, and exhaust passage can use clean aggregate to fill, above exhaust passage after covering geotextile
Earth material is backfilled again, forms ballast layer, according to the possible aggregation situation of impervious barrier underlying gas, exhaust passage needs local eminence,
Protuberance elevation is higher than ballast layer, even if water-bed have alluvial, exhaust passage is maintained to unimpeded, the high water outlet in exhaust passage
The top surface at bottom needs to be laid special stress on protecting with geotextile, and main purpose is that the silt for preventing deposition is doped into exhaust passage, it is ensured that go out ease
Gas can smoothly enter and retain among water.This method replaces existing soil property impervious barrier or common with microporous hydrophobic membrane completely
Antiseepage film, microporous hydrophobic membrane, which undertakes, whole anti-blends degassing function.
Device two, a kind of Hydraulic Projects antiseepage exhaust apparatus, it is characterised in that：The device is anti-as first with common antiseepage film
Infiltration layer, partly replaces common antiseepage film with microporous hydrophobic membrane, and microporous hydrophobic membrane constructs local anti-on the first impervious barrier
The intersection of seepage hole or antiseepage vent strip, microporous hydrophobic membrane and common antiseepage film sets and is tightly connected, be tightly connected using bonding,
Welding is mechanically connected, microporous hydrophobic membrane upper and lower all laying geotextiles, and channel of gas collection, channel of gas collection are set below impervious barrier
It is that the exhaust passage for being higher by the bottom is set above the ventilative material of Permeable blind pipe, graded sand and stone, geotextile, microporous hydrophobic membrane,
Covering geotextile builds backfill material formation ballast layer on the second impervious barrier, the second impervious barrier above exhaust passage, and wherein
Portion discharge passage swells, and protuberance elevation is higher than ballast layer.Filled using clean aggregate exhaust passage.
Device three, a kind of Hydraulic Projects antiseepage exhaust apparatus, it is characterised in that：The device is used as antiseepage with common antiseepage film
Layer, the perforate in common antiseepage film, and connected collection filter element and common antiseepage film by wearing film sealing, collection filter element goes out
Mouth is connected with steam hose, and steam hose is connected with that can bear the membrane filter of inside and outside differential pressure again, constitutes antiseepage exhaust cap,
The gas for going out ease is discharged to by the microporous hydrophobic membrane in membrane filter and retained among water, the gas collection set below impervious barrier
Passage is that both sides set geotextile to protect above and below Permeable blind pipe, graded sand and stone, the breathable material of geotextile, impervious barrier
Layer, membrane filter is fixed on shield basis, while setting the protective cover that can laterally ventilate.Antiseepage exhaust cap is by pipe
Pressed gas under road guiding film, is undertaken using the microporous hydrophobic membrane in the water body outside impervious barrier and prevents blending degassing function.
The utility model can form antiseepage exhaust level with microporous hydrophobic membrane and top exhaust passage；To be cost-effective, also can
It is applied in combination with microporous hydrophobic membrane and existing common antiseepage film, forms the antiseepage exhaust level for only needing to be vented in presumptive area.
The scheme that two of which film combinations are used refers to：Channel of gas collection is preset under impervious barrier, extruded gas is allowed from existing general
Freely level is pooled to below dewatering microporous film under logical antiseepage film, and is discharged to through microporous hydrophobic membrane on impervious barrier.I.e.
Impervious barrier is constituted using the impervious nature of two kinds of materials, antiseepage function is realized jointly, while being dredged using the micropore of local arrangement
The gas permeability of moisture film, the extruded gas under precalculated position discharge film.The scheme that two kinds of films are applied in combination can greatly reduce micro-
The consumption of hole hydrophobic membrane, can play the economy of existing common antiseepage film.
The utility model is exactly the core component that microporous hydrophobic membrane is used as to Hydraulic Projects impervious barrier, by reasonably with suit
Put, realize that the anti-of soil property impervious barrier blends airing function；Overcome existing common antiseepage film can only antiseepage, it is impossible to which exhaust lacks
Fall into.
Brief description of the drawings
Fig. 1 is the structural representation of one of the utility model；
Fig. 2 is two structural representation of the utility model；
Fig. 3 is three structural representation of the utility model.
In figure：1st, microporous hydrophobic membrane, 2, ground, 3, exhaust passage, 4, ballast layer, 5, retain water, 6, geotextile, 7, general
Logical antiseepage film, 8, be tightly connected, 9, channel of gas collection, 10, collection filter element, 11, wear film sealing, 12, steam hose, 13, film mistake
Filter, 14, protective cover, 15, shield basis.
Specific embodiment
The utility model lists three kinds of Hydraulic Projects antiseepage exhaust apparatus：
Device one, as shown in figure 1, a kind of Hydraulic Projects antiseepage exhaust apparatus, it is characterised in that：The device is to use microporous hydrophobic
Film 1 builds the first impervious barrier, the first impervious barrier is laid on as thin central layer in the top laying geotextile 6 of microporous hydrophobic membrane 1
Backfill exhaust passage 3 above the top surface of ground 2, the first impervious barrier, the top of exhaust passage 3 covering geotextile builds the second antiseepage
Backfill material formation ballast layer 4 on layer, the second impervious barrier, and which part exhaust passage protuberance, protuberance elevation are higher than ballast
Layer 4.Geotextile 6 plays a protective role to microporous hydrophobic membrane 1, and exhaust passage 3 can use clean aggregate to fill, according to anti-
The possible aggregation situation of infiltration layer underlying gas, exhaust passage 3 needs local eminence, and protuberance elevation is higher than ballast layer 4, even if water
Bottom exist alluvial, exhaust passage 3 be maintained to it is unimpeded, exhaust passage 3 be higher by the bottom top surface need to use geotextile weight
Point protection, main purpose is that the silt for preventing deposition is doped into exhaust passage, it is ensured that go out the gas of ease and can smoothly enter to retain water 5
Among.This method replaces existing soil property impervious barrier or common antiseepage film with microporous hydrophobic membrane 1 completely, and microporous hydrophobic membrane 1 undertakes
The anti-of whole blends degassing function.
Device two, as shown in Fig. 2 a kind of Hydraulic Projects antiseepage exhaust apparatus, it is characterised in that：The common antiseepage film of the device
7, as the first impervious barrier, partly replace common antiseepage film 7, microporous hydrophobic membrane 1 is on the first impervious barrier with microporous hydrophobic membrane 1
Local anti-seepage hole or antiseepage vent strip is constructed, the intersection setting of microporous hydrophobic membrane 1 and common antiseepage film 7 is tightly connected 8,
8 are tightly connected using bonding, welding or is mechanically connected, the upper and lower of microporous hydrophobic membrane 1 all laying geotextiles 6, below impervious barrier
Channel of gas collection 9 is set, and channel of gas collection 9 is the ventilative material of Permeable blind pipe, graded sand and stone, geotextile, the top of microporous hydrophobic membrane 1
The exhaust passage 3 for being higher by the bottom is set, and covering geotextile in the top of exhaust passage 3 is built on the second impervious barrier, the second impervious barrier
Earth material formation ballast layer 4 is backfilled, and which part exhaust passage is swelled, protuberance elevation is higher than ballast layer 4.Exhaust passage 3 makes
Filled with clean aggregate.Microporous hydrophobic membrane 1 undertakes in regional area to be prevented blending degassing function.
Device three, as shown in figure 3, a kind of Hydraulic Projects antiseepage exhaust apparatus, it is characterised in that：The common antiseepage film of the device
7 as impervious barrier, the perforate in common antiseepage film 7, and is connected collection filter element 10 and common antiseepage film 7 by wearing film sealing 11
Get up, the outlet of collection filter element 10 is connected with steam hose 12, and steam hose 12 is again with that can bear the membrane filtration of inside and outside differential pressure
Device 13 is connected, and constitutes antiseepage exhaust cap, and the gas for going out ease is discharged to by the microporous hydrophobic membrane 1 in membrane filter 13 and retains water
Among 5, the channel of gas collection 9 set below impervious barrier is Permeable blind pipe, graded sand and stone, the breathable material of geotextile, antiseepage
Both sides set the protective layer of geotextile 6 above and below layer, can accept or reject as the case may be, and membrane filter 13 is fixed on shield basis
On 15, while setting the protective cover 14 that can laterally ventilate.Antiseepage exhaust cap is, by pressed gas under pipeline guiding film, to utilize
Microporous hydrophobic membrane 1 in water body outside impervious barrier, which undertakes, to be prevented blending degassing function.
Claims (3)
1. a kind of Hydraulic Projects antiseepage exhaust apparatus, it is characterised in that：The device is to use microporous hydrophobic membrane（1）As thin central layer,
Microporous hydrophobic membrane（1）Top laying geotextile（6）The first impervious barrier is built, the first impervious barrier is laid on ground（2）Top surface,
Backfill exhaust passage above first impervious barrier（3）, exhaust passage（3）Top covering geotextile builds the second impervious barrier, second
Backfill material formation ballast layer on impervious barrier（4）, and which part exhaust passage protuberance, swell elevation and be higher than ballast layer
(4)。
2. a kind of Hydraulic Projects antiseepage exhaust apparatus, it is characterised in that：The common antiseepage film of the device（7）As the first impervious barrier,
Partly use microporous hydrophobic membrane（1）Replace common antiseepage film（7）, microporous hydrophobic membrane（1）Part is constructed on the first impervious barrier
Anti- seepage hole or antiseepage vent strip, microporous hydrophobic membrane（1）With common antiseepage film（7）Intersection set be tightly connected（8）, sealing
Connection（8）Using bonding, welding or mechanical connection, microporous hydrophobic membrane（1）Upper and lower all laying geotextiles（6）, under impervious barrier
Side sets channel of gas collection（9）, channel of gas collection（9）It is the ventilative material of Permeable blind pipe, graded sand and stone, geotextile, microporous hydrophobic
Film（1）Top sets the exhaust passage for being higher by the bottom（3）, exhaust passage（3）Top covering geotextile builds the second impervious barrier,
Backfill material formation ballast layer on second impervious barrier（4）, and which part exhaust passage protuberance, swell elevation and be higher than ballast
Layer (4).
3. a kind of Hydraulic Projects antiseepage exhaust apparatus, it is characterised in that：The common antiseepage film of the device（7）As impervious barrier, general
Logical antiseepage film（7）Upper perforate, and sealed by wearing film（11）Filter element will be collected（10）With common antiseepage film（7）Connect, collect
Filter element（10）Outlet and steam hose（12）Connection, steam hose（12）Again with the membrane filter of inside and outside differential pressure can be born
（13）Connection, constitutes the channel of gas collection set below antiseepage exhaust cap, impervious barrier（9）It is that Permeable blind pipe, graded sand and stone, geotechnique knit
Both sides set geotextile above and below the breathable material of thing, impervious barrier（6）Protective layer, membrane filter（13）It is fixed on shield base
Plinth（15）On, while setting the protective cover that can laterally ventilate（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720141108.1U CN206570765U (en) | 2017-02-16 | 2017-02-16 | Hydraulic Projects antiseepage exhaust apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720141108.1U CN206570765U (en) | 2017-02-16 | 2017-02-16 | Hydraulic Projects antiseepage exhaust apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206570765U true CN206570765U (en) | 2017-10-20 |
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ID=60058283
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720141108.1U Expired - Fee Related CN206570765U (en) | 2017-02-16 | 2017-02-16 | Hydraulic Projects antiseepage exhaust apparatus |
Country Status (1)
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| CN (1) | CN206570765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555084A (en) * | 2019-01-17 | 2019-04-02 | 中国电建集团华东勘测设计研究院有限公司 | Bottom storehouse geomembrane anti-seepage bedding gas collection exhaust structure and its construction method |
| CN111254880A (en) * | 2020-01-20 | 2020-06-09 | 济南大学 | Water-gas separation type under-membrane drainage integrated system for horizontal impermeable layer of plain reservoir |
-
2017
- 2017-02-16 CN CN201720141108.1U patent/CN206570765U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555084A (en) * | 2019-01-17 | 2019-04-02 | 中国电建集团华东勘测设计研究院有限公司 | Bottom storehouse geomembrane anti-seepage bedding gas collection exhaust structure and its construction method |
| CN109555084B (en) * | 2019-01-17 | 2023-09-12 | 中国电建集团华东勘测设计研究院有限公司 | Reservoir bottom geomembrane impermeable-laid gas collection and exhaust structure and construction method thereof |
| CN111254880A (en) * | 2020-01-20 | 2020-06-09 | 济南大学 | Water-gas separation type under-membrane drainage integrated system for horizontal impermeable layer of plain reservoir |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171020 Termination date: 20210216 |