CN107653842A - A kind of geomembrane reservoir sloping core Seepage method - Google Patents
A kind of geomembrane reservoir sloping core Seepage method Download PDFInfo
- Publication number
- CN107653842A CN107653842A CN201710692804.6A CN201710692804A CN107653842A CN 107653842 A CN107653842 A CN 107653842A CN 201710692804 A CN201710692804 A CN 201710692804A CN 107653842 A CN107653842 A CN 107653842A
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- China
- Prior art keywords
- geomembrane
- reservoir
- basic unit
- sloping core
- seam
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to building field construction method technical field, there is provided a kind of geomembrane reservoir sloping core Seepage method, including following construction procedure：Clear up basic unit, remove the hard thing of cusped edge of all possible damaged geomembranes such as substrate surface mud, rubbish, stone in the range of geomembrane laying, and smooth compacting soil, carry out water seepage drainage facility, anchoring groove, cloudy chute are dug, the present invention, which realizes, to be intended to provide a kind of small quantities, Stability Analysis of Structures, good seepage-proof property, the construction method of good endurance using the antiseepage advantage of geomembrane.
Description
Technical field
The present invention relates to construction techniques technical field, and in particular to a kind of geomembrane reservoir sloping core Seepage side
Method.
Background technology
Composite geo-membrane is a kind of Novel seepage material, and bitumen concrete, clay, the gravel of seepage control of dam core-wall are used for other
The materials such as soil are compared, and it has the advantages that strong impermeability, small investment, easy construction and short time limit.Dam construction in China
In construction, just just start to apply using geomembrane as the technology of earth and rockfill dam impervious core material, but due to the own skill of geomembrane
Art economic advantages, it is set widely to be applied in newly-built dyke building from now on.
The content of the invention
The technical problem of solution
In view of the shortcomings of the prior art, the invention provides a kind of geomembrane reservoir sloping core Seepage method, it is intended to profit
A kind of small quantities, Stability Analysis of Structures, good seepage-proof property, the construction method of good endurance are provided with the antiseepage advantage of geomembrane.
Technical scheme
To realize object above, the present invention is achieved by the following technical programs：
A kind of geomembrane reservoir sloping core Seepage method, including following construction procedure：
(1) basic unit is cleared up, is carried out cutting slope according to design, removes substrate surface mud, rubbish, stone in the range of geomembrane laying
The hard thing of cusped edge of all possible damaged geomembranes such as block, and smooth compacting soil, carry out water seepage drainage facility, and it is sliding to have dug anchoring groove, the moon
Groove.
(2) laid using the film composite geo-membrane of two cloth one, spread using rolling from top to bottom, one end of geomembrane is fixed
In dam crest, the gradient is relatively slow or during dam bottom using horizontal laying；Specifically laying step is for it：(a) geomembrane is laid；(b) geomembrane
Seam welds；(c) bottom cloth is sutured；(d) geomembrane is turned back and completed；(e) surface layer cloth is sutured；(f) periphery connection anchoring.
Further, when clearing up basic unit, when Special fungus category influential on geomembrane be present, can be entered with soil fungicides
Row processing；And basic unit should handle uniform to secret room, substrate negative and positive angle cavetto radius should be not less than 500mm.
Further, geomembrane seam welds are placed under seam using plank and are used as workbench；Cross weld asks mistake
Position size should be greater than or equal to 500mm.
Further, after the completion of geomembrane seam welds, weld seam is detected, observation whether there is misses, seam whether
Without soup damage, corrugationless, whether splice uniformly etc..
Further, when geomembrane is laid, it can be used when basic unit is concrete structure, between geomembrane and basic unit and contain glue
Patch it is cementitious, with meet structure stability against sliding requirement, the adhesive be cement weight 2%.
Further, when geomembrane is laid, when basic unit is earth material, can be sprayed water on the soil body, to increase geomembrane and soil
Cohesiveness.
Further, when geomembrane is laid, to meet structure stability against sliding, anti-skid groove is set at domatic middle part,
After geomembrane is close in anti-skid groove, it is backfilling and compacted with sandy soil.
Beneficial effect
The invention provides a kind of geomembrane reservoir sloping core Seepage method, compared with existing known technology, the present invention
Have the advantages that：
1st, antiseepage, small investment, easy construction, short time limit are carried out using the sloping core of geomembrane dam, climate influences relative
It is smaller, it can effectively meet the antiseepage requirement of reservoir sloping core.
2nd, the film composite earthwork membrane stability of two cloth one is good, and tension is stretched, freeze thawing resistance, corrosion-resistant；Pass through the place to basic unit slope
Reason can realize that geomembrane is stably fixed.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the sloping core leakage preventing structure schematic diagram of the present invention；
Fig. 2 is the A geomembranes of the present invention in dam bottom connection diagram；
Fig. 3 is the B geomembranes of the present invention in dam crest connection diagram；
Fig. 4 is the anti-skid groove schematic diagrames of C of the present invention.
Label in figure represents respectively：1- basic units；2- geomembranes；3- dams bottom；4- dam crests；The anti-skid grooves of 5-；6- bulwarks.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment：
A kind of reservoir sloping core Seepage method of geomembrane 2 of the present embodiment, including following construction procedure：
(1) basic unit 1 is cleared up, is carried out cutting slope according to design, removes the surface mud of basic unit 1, rubbish in the range of the laying of geomembrane 2
The hard thing of cusped edge of all possible damaged geomembranes 2 such as rubbish, stone, and smooth compacting soil, water seepage drainage facility is carried out, dig good anchoring
Ditch, cloudy chute.
(2) laid using the film composite geo-membrane 2 of two cloth one, spread using rolling from top to bottom, one end of geomembrane 2 is consolidated
Be scheduled on dam crest 4, the gradient is relatively slow or during dam bottom 3 using horizontal laying；Specifically laying step is for it：(a) geomembrane is laid；(b) it is native
Work film seam welds；(c) bottom cloth is sutured；(d) geomembrane is turned back and completed；(e) surface layer cloth is sutured；(f) periphery connection anchor
Gu.
When clearing up basic unit 1, exist on that during 2 influential Special fungus category of geomembrane, can be handled with soil fungicides；And
Basic unit 1 should handle uniform to secret room, and substrate negative and positive angle cavetto radius should be not less than 500mm.
The seam welds of geomembrane 2 are placed under seam using plank and are used as workbench；Cross weld asks that dislocation size should be big
In or equal to 500mm.
After the completion of geomembrane seam welds, weld seam is detected, observation, which whether there is, to be missed, whether seam is without soup damage, aptychus
Wrinkle, whether splice uniformly etc..
When geomembrane is laid, when basic unit 1 is concrete structure, the water containing adhesive can be used between geomembrane 2 and basic unit 1
Mud is bonded, and to meet the requirement of structure stability against sliding, adhesive is the 2% of cement weight.
When geomembrane is laid, when basic unit 1 is earth material, it can be sprayed water on the soil body, to increase the cohesiveness of geomembrane 2 and soil.
When geomembrane is laid, to meet structure stability against sliding, anti-skid groove 5 is set at domatic middle part, geomembrane 2 is tight
After being affixed in anti-skid groove 5, it is backfilling and compacted with sandy soil.
Weld detection method：Ocular estimate：Visually observe PVC film and whether there is and miss, seam whether scald damage, have corrugationless, whether
Splice uniform etc..Inflate detection method：The both ends of welding section to be measured are shut, the cavity that air tube is inserted between two weld seams, inflation
30s is watched quietly after to 0.05Mpa, if air pressure shows, without leakage eye, weld is accepted, otherwise to search reason and repair in time without decline.
During the connection anchoring f of periphery, in the anchoring groove for the bottom of bulwark 6 that the top of geomembrane 2 is embedded into dam crest 4, base and
Periphery and uncomfortable water base bottom and periphery water-tight structure close-coupled, form closing or semi-enclosed waterproof leakage preventing structure body.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
- A kind of 1. geomembrane reservoir sloping core Seepage method, it is characterised in that including following construction procedure：(1) basic unit is cleared up, is carried out cutting slope according to design, removes substrate surface mud, rubbish, stone etc. in the range of geomembrane laying The hard thing of cusped edge of all possible damaged geomembranes, and smooth compacting soil, carry out water seepage drainage facility, have dug anchoring groove, cloudy chute.(2) laid using the film composite geo-membrane of two cloth one, spread using rolling from top to bottom, one end of geomembrane is fixed on dam Top, the gradient is relatively slow or during dam bottom using horizontal laying；Specifically laying step is for it：(a) geomembrane is laid；(b) geomembrane seam Welding；(c) bottom cloth is sutured；(d) geomembrane is turned back and completed；(e) surface layer cloth is sutured；(f) periphery connection anchoring.
- A kind of 2. geomembrane reservoir sloping core Seepage method according to claim 1, it is characterised in that cleaning basic unit, During in the presence of Special fungus category influential on geomembrane, it can be handled with soil fungicides；And basic unit should handle it is uniform to secret room, Substrate negative and positive angle cavetto radius should be not less than 500mm.
- A kind of 3. geomembrane reservoir sloping core Seepage method according to claim 1, it is characterised in that geomembrane seam Welding is placed under seam using plank is used as workbench；Cross weld asks that dislocation size should be greater than or equal to 500mm.
- A kind of 4. geomembrane reservoir sloping core Seepage method according to claim 1, it is characterised in that geomembrane seam After the completion of welding, weld seam is detected, observation, which whether there is, to be missed, seam whether without soup damage, corrugationless, whether splice it is uniform etc..
- 5. a kind of geomembrane reservoir sloping core Seepage method according to claim 1, it is characterised in that geomembrane is laid When, when basic unit is concrete structure, it can be used between geomembrane and basic unit containing the cementitious of adhesive, to meet structure antiskid Stability requirement, the adhesive are the 2% of cement weight.
- 6. a kind of geomembrane reservoir sloping core Seepage method according to claim 1, it is characterised in that geomembrane is laid When, when basic unit is earth material, it can be sprayed water on the soil body, to increase the cohesiveness of geomembrane and soil.
- 7. a kind of geomembrane reservoir sloping core Seepage method according to claim 1, it is characterised in that geomembrane is laid When, to meet structure stability against sliding, anti-skid groove is set at domatic middle part, after geomembrane is close in anti-skid groove, uses sand Property earthen backfill compacting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710692804.6A CN107653842A (en) | 2017-08-14 | 2017-08-14 | A kind of geomembrane reservoir sloping core Seepage method |
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| CN201710692804.6A CN107653842A (en) | 2017-08-14 | 2017-08-14 | A kind of geomembrane reservoir sloping core Seepage method |
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| CN107653842A true CN107653842A (en) | 2018-02-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609804A (en) * | 2020-10-29 | 2021-04-06 | 杭州青桐林园林设计有限公司 | Supplementary construction equipment of ecological pond of log landscape |
| CN112942244A (en) * | 2021-02-04 | 2021-06-11 | 山东天海新材料工程有限公司 | Construction method of injection type reservoir seepage-proofing system in high and cold regions |
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| CN104314089A (en) * | 2014-11-10 | 2015-01-28 | 中国水利水电第十四工程局有限公司 | Method for composite geo-membrane sloping core cofferdam |
| CN106836123A (en) * | 2017-03-28 | 2017-06-13 | 阮文森 | Geomembrane anti-seepage drainage system for newly-built earth dam and for effecting a radical cure disease danger earth dam |
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2017
- 2017-08-14 CN CN201710692804.6A patent/CN107653842A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314089A (en) * | 2014-11-10 | 2015-01-28 | 中国水利水电第十四工程局有限公司 | Method for composite geo-membrane sloping core cofferdam |
| CN106836123A (en) * | 2017-03-28 | 2017-06-13 | 阮文森 | Geomembrane anti-seepage drainage system for newly-built earth dam and for effecting a radical cure disease danger earth dam |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112609804A (en) * | 2020-10-29 | 2021-04-06 | 杭州青桐林园林设计有限公司 | Supplementary construction equipment of ecological pond of log landscape |
| CN112609804B (en) * | 2020-10-29 | 2022-04-01 | 杭州青桐林园林设计有限公司 | Supplementary construction equipment of ecological pond of log landscape |
| CN112942244A (en) * | 2021-02-04 | 2021-06-11 | 山东天海新材料工程有限公司 | Construction method of injection type reservoir seepage-proofing system in high and cold regions |
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Application publication date: 20180202 |