CN104594297B - A kind of double face slab rock-fill dams and construction method thereof - Google Patents
A kind of double face slab rock-fill dams and construction method thereof Download PDFInfo
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- CN104594297B CN104594297B CN201410703396.6A CN201410703396A CN104594297B CN 104594297 B CN104594297 B CN 104594297B CN 201410703396 A CN201410703396 A CN 201410703396A CN 104594297 B CN104594297 B CN 104594297B
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- high polymer
- enrockment
- concrete
- composite panel
- polymer composite
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/06—Earth-fill dams; Rock-fill dams
Abstract
The invention discloses a kind of double face slab rock-fill dams, it includes enrockment accumulation body, concrete slab, geomembrane and high polymer composite panel, upstream side at enrockment accumulation body covers high polymer composite panel, overburden soil work film on high polymer composite panel, covers concrete slab on geomembrane.The invention also discloses the construction method of these double face slab rock-fill dams.The present invention dam body accumulation body filled require relatively low, it is to avoid conventional panels rock-fill dams need higher filling degree of compaction and have the loaded filter of antiseepage effect during filling；Effectively reduce the heat of hydration of concrete, the advantages such as construction link is few；Strengthen the seepage capability of dam body, it is to avoid construct loaded filter and transition zone at panel rear；Geomembrane is laid, it is possible to effective prevention self-compacting concrete flows in accumulation body between double face slab；The construction method speed of application of the present invention is fast, and technique is simple, and suitable popularization and application possess good practicality.
Description
Technical field
The invention belongs to hydraulic engineering technical field, particularly relate to a kind of double face slab rock-fill dams and construction method thereof.
Background technology
Rock occurs in the mining area of the California, USA Sierra Nevada fifties in 19th century the earliest,
Rock-fill dams at that time use wooden boards antiseepage.Through the development in more than 150 years, modern rock is the most mixed
Solidifying soil rock, because it has the advantages that cost is low, the duration is short, CFRD has obtained fluffy
Vigorous development, the most successfully builds the high dam of 200m level.Rock is mainly made up of three parts: antiseepage face
Plate, antiseepage ground structure and enrockment dam body；Face slab for water retaining is the main permeation-inhibiting members of rock-fill dams, and panel is by week
Side seam is connected with antiseepage ground structure.
The method having several building earth and rockfill dam in prior art: 1) use self-compacting concrete material building coagulation
The construction method of soil dam, the method is mainly used in building and has the dam structure of bigger concrete seepage-proofing body,
Such as concrete core-wall rock-fill dams, concrete gravity dam etc.；2) use the panel made of composite panel material and
Impervious body construction method, this earth and rockfill dam uses a kind of composite to replace concrete to make panel, its composite
Panel working procedure is complicated, needs to design impervious body and assists antiseepage, long in time limit and seepage capability it is difficult to ensure that；3)
The face slab for water retaining being made up of glass screed and frp layer and construction method thereof, this barrier sheet essence falls within one
Planting composite material face, its execution conditions require higher, construction complexity.Meanwhile, set up greatly according to existing embankment
Dam, or set up dam on the basis of existing earthquake accumulation body, in these special places, the main building material of dam
Material is not to fill according to the design requirement of dam work, and it fills indices and can not grasp completely.
Summary of the invention
Goal of the invention: it is an object of the invention to provide a kind of double face slab rock-fill dams, strengthens dam body intensity and prevents
Ooze, it is adaptable to existing embankment sets up dam and newly-built dam engineering on the basis of setting up dam, existing accumulation body；This
The purpose of invention is to provide the construction method of these double face slab rock-fill dams.
Technical scheme: for achieving the above object, the present invention adopts the following technical scheme that
A kind of double face slab rock-fill dams, it includes that enrockment accumulation body, concrete slab, geomembrane and high polymer are multiple
Closing panel, the upstream side at described enrockment accumulation body covers high polymer composite panel, at high polymer composite panel
Upper overburden soil work film, covers concrete slab on geomembrane.
The described enrockment trapezoidal shape of accumulation body cross section.
Described concrete slab is poured by bar-mat reinforcement and self-compacting concrete and forms；The ratio of reinforcement of concrete slab
It is 60～100kg/m3。
Described high polymer composite panel is made up of the high polymer being filled in accumulation body and enrockment；High polymer is combined
The thickness of panel is not less than 50cm.
The construction method of described double face slab rock-fill dams, comprises the following steps:
1) enrockment is piled up
Embankment or earthquake enrockment accumulation body are carried out heavy type roll, form trapezoidal dam body；
2) slip casting
It is axial that upstream side at trapezoidal dam body is perpendicular to dam, and be in tilted layout high polymer grouting pipe, at high polymer grouting
Pipe outer side covers lays one layer of geomembrane；The template of concrete slab is built, inside template outside geomembrane
Put into bar-mat reinforcement, bar-mat reinforcement inserts concrete grouting pipe cast self-compacting concrete, forms concrete slab；
Injecting high polymer toward high polymer grouting pipe is internal, there is chemical reaction, body in high polymer inside high polymer grouting pipe
Long-pending expansion, forms high polymer composite panel by the hole of the injected hole filling periphery enrockment of periphery together with enrockment,
The thickness of high polymer composite panel is not less than 50cm, high polymer composite panel the enrockment being covered with is heap clitter
Long-pending body；
3) form removal
The template of dismounting concrete slab.
Beneficial effect: compared with prior art, the double face slab rock-fill dams of the present invention can be on existing embankment or ground
Build dam on the basis of shake accumulation body, dam body accumulation body filled require relatively low, it is to avoid conventional panels
Rock-fill dams need higher filling degree of compaction and have the loaded filter of antiseepage effect during filling；Concrete surface
Plate uses reinforcing bar and self-compacting concrete to pour and form, and can effectively reduce the heat of hydration of concrete, and construction link is few
Etc. advantage；Use high polymer composite panel, strengthen the seepage capability of dam body, it is to avoid construct anti-filter at panel rear
Layer and transition zone, construction is simple；Geomembrane is laid, it is possible to effective prevention self-compaction mixes between double face slab
Solidifying soil flows in accumulation body, provides guarantee for forming the high polymer composite panel of even intensity；The present invention executes
Work method speed of application is fast, and technique is simple, and suitable popularization and application possess good practicality.
Accompanying drawing explanation
Fig. 1 is the generalized section of double face slab rock-fill dams；
Fig. 2 is concrete slab floor map；
Fig. 3 is high polymer panel plane schematic diagram；
Fig. 4 is dam body local A enlarged diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described further.
As shown in figures 1-4, a kind of double face slab rock-fill dams include enrockment accumulation body 1, concrete slab 2, soil
Work film 3 and high polymer composite panel 4, the upstream side at enrockment accumulation body 1 covers high polymer composite panel 4,
Overburden soil work film 3 on high polymer composite panel 4, covers concrete slab 2 on geomembrane 3.
Wherein, the trapezoidal shape of cross section of enrockment accumulation body 1, concrete slab 2 is by bar-mat reinforcement 5 with from close
Real concrete 6 pours and forms；The ratio of reinforcement of concrete slab is 60～100kg/m3.High polymer composite panel 4
High polymer 7 and enrockment by being filled in accumulation body form；The thickness of high polymer composite panel 4 is not less than 50cm.
The construction method of double face slab rock-fill dams, comprises the following steps:
1) enrockment is piled up
Embankment or earthquake enrockment accumulation body are carried out heavy type roll, form trapezoidal dam body；Simultaneously according to embankment and ground
The intensive parameter of shake dam body materials carries out slope trimming；
2) slip casting
Upstream side at trapezoidal dam body is perpendicular to dam axially inclined layout high polymer grouting pipe 8, adjacent high polymer
Spacing 5～10m between Grouting Pipe 8, lays one layer of geomembrane 3 in high polymer grouting pipe 8 outer side covers；?
Build the template of concrete slab 2 outside geomembrane 3, inside template, put into bar-mat reinforcement 5, at bar-mat reinforcement 5
Middle insertion concrete grouting pipe cast self-compacting concrete 6, forms concrete slab 2；Toward high polymer grouting pipe
8 internal inject high polymers 7, and high polymer 7 occurs chemical reaction inside high polymer grouting pipe 8, volumetric expansion,
High polymer composite panel 4 is formed together with enrockment by the hole of the injected hole 9 filling periphery enrockment of periphery, high
The thickness of polymers composite panel 4 is not less than 50cm, high polymer composite panel 4 enrockment being covered with is enrockment
Accumulation body 1；
3) form removal
The template of dismounting concrete slab 2.
Claims (2)
1. double face slab rock-fill dams, it is characterised in that: it includes enrockment accumulation body (1), concrete surface
Plate (2), geomembrane (3) and high polymer composite panel (4), in the upstream of described enrockment accumulation body (1)
Side covers high polymer composite panel (4), at upper overburden soil work film (3) of high polymer composite panel (4), at soil
Concrete slab (2) is covered on work film (3)；The construction method of described double face slab rock-fill dams, including with
Lower step:
1) enrockment is piled up
Embankment or earthquake enrockment accumulation body are carried out heavy type roll, form trapezoidal dam body；
2) slip casting
It is axial that upstream side at trapezoidal dam body is perpendicular to dam, and be in tilted layout high polymer grouting pipe (8), at high polymer
Grouting Pipe (8) outer side covers lays one layer of geomembrane (3)；Concrete slab is built in geomembrane (3) outside
(2) template, puts into bar-mat reinforcement (5) inside template, inserts concrete grouting pipe in bar-mat reinforcement (5)
Cast self-compacting concrete (6), forms concrete slab (2)；Inject toward high polymer grouting pipe (8) is internal
High polymer (7), high polymer (7) is generation chemical reaction inside high polymer grouting pipe (8), volumetric expansion,
High polymer composite panel (4) is formed together with enrockment by the hole of injected hole (9) the filling periphery enrockment of periphery,
The thickness of high polymer composite panel (4) is not less than 50cm, high polymer composite panel (4) heap being covered with
Stone is enrockment accumulation body (1)；
3) form removal
The template of dismounting concrete slab (2).
Double face slab rock-fill dams the most according to claim 1, it is characterised in that: described concrete surface
Plate (2) is poured formed by bar-mat reinforcement (5) and self-compacting concrete (6)；The ratio of reinforcement of concrete slab is
60～100kg/m3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410703396.6A CN104594297B (en) | 2014-11-26 | 2014-11-26 | A kind of double face slab rock-fill dams and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410703396.6A CN104594297B (en) | 2014-11-26 | 2014-11-26 | A kind of double face slab rock-fill dams and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104594297A CN104594297A (en) | 2015-05-06 |
| CN104594297B true CN104594297B (en) | 2016-12-07 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178259A (en) * | 2015-08-24 | 2015-12-23 | 中国科学院力学研究所 | Joint designing method of cushion course and transition layer of concrete faced rockfill dam |
| CN105625272B (en) * | 2016-01-30 | 2017-08-11 | 清华大学 | The 3D building systems and method of construction of earth and rockfill dam |
| CN107503322A (en) * | 2017-07-19 | 2017-12-22 | 江西省水利科学研究院 | A kind of preparation method for the earth and rockfill dam downstream patch slope concrete slab for filtering native draining |
| CN108797522A (en) * | 2018-06-13 | 2018-11-13 | 靳恬静 | A kind of dykes and dams blocking method |
| CN109629524A (en) * | 2018-12-20 | 2019-04-16 | 重庆大学 | A kind of FRP Combined concrete panel earth and rockfill dam and its construction method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000073339A (en) * | 1998-06-15 | 2000-03-07 | Natl Res Inst Of Agricultural Engineering | Inspection gallery in fill-type dam and construction method of inspection gallery in fill-type dam |
| CN100535254C (en) * | 2005-12-21 | 2009-09-02 | 中国水利水电建设集团公司 | Once forming construction technique for concrete panel rock fill dam bedding material and slope fixing mortar |
| CN101831889B (en) * | 2010-05-05 | 2011-10-05 | 河海大学 | Anti-seismic combination slab for earth and rockfill dam and construction method thereof |
| CN102561271B (en) * | 2012-01-11 | 2015-04-08 | 河海大学 | Polymer grout injected earth-rock dam and construction method thereof |
| CN103422473A (en) * | 2013-07-10 | 2013-12-04 | 大连理工大学 | Anti-seismic face plate structure for rock-fill dam with concrete face plate and method for constructing face plate anti-seismic structure |
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Address after: 315099, Zhejiang Province, Haishu District, Zhongshan Ningbo West Road, No. 2 hang Long Center (15-9) (Yu Shun Ecological Construction Co., Ltd.) Co-patentee after: Hehai Science & Technology Co., Ltd. Patentee after: YUSHUN ECOLOGICAL CONSTRUCTION CO., LTD. Address before: 7, building 487, building 17, Ning Xing Fortune Plaza, No. 315000, Cheng Cheng North Road, Zhejiang, Ningbo Co-patentee before: Hehai Science & Technology Co., Ltd. Patentee before: YUSHUN ECOLOGICAL CONSTRUCTION CO., LTD. |
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