CN104594297A - Double-deck concrete faced rock-fill dam and construction method thereof - Google Patents
Double-deck concrete faced rock-fill dam and construction method thereof Download PDFInfo
- Publication number
- CN104594297A CN104594297A CN201410703396.6A CN201410703396A CN104594297A CN 104594297 A CN104594297 A CN 104594297A CN 201410703396 A CN201410703396 A CN 201410703396A CN 104594297 A CN104594297 A CN 104594297A
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- concrete
- high polymer
- dam
- enrockment
- composite panel
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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 double-deck concrete faced rock-fill dam. The double-deck concrete faced rock-fill dam comprises a rock-fill accumulation body, a concrete face, geo-membrane and a super-polymer compound concrete face, the upper side of the rock-fill accumulation body is laterally covered with the super-polymer compound concrete face, the super-polymer compound concrete face is covered with the geo-membrane, and the geo-membrane is covered with the concrete face. The invention also discloses the double-deck concrete faced rock-fill dam construction method. According to the double-deck concrete faced rock-fill dam and the construction method thereof, the filling requirement to the accumulation body of a dam body is relatively lower, and it is avoided that a normal concrete faced rock-fill dam requires a higher degree of filling density and a loaded filter with impermeability in the process of filling; concrete hydration heat is effectively reduced, and construction links are few; the impermeability ability of the dam body is enhanced, and the loaded filter and a transition layer are not needed to be constructed on the back of concrete faces; the geo-membrane is arranged between double-deck concrete faces, and self compact concrete can be effectively protected from flowing into the accumulation body; the double-deck concrete faced rock-fill dam construction method has the advantages of being fast in construction speed, simple in process, suitable to popularize and apply and good in practicability.
Description
Technical field
The invention belongs to hydraulic engineering technical field, particularly relate to a kind of double face slab loose rock dam and construction method thereof.
Background technology
Rock appears at the mining area of the California, USA Sierra Nevada fifties in 19th century the earliest, and loose rock dam at that time adopt wooden boards antiseepage.Through the development in more than 150 years, modern rock is Concrete Face Rockfill Dam substantially, and because it has the advantages that cost is low, the duration is short, Concrete Face Rockfill Dam obtains vigorous growth, successfully builds the high dam of 200m level.Rock forms primarily of three parts: face slab for water retaining, antiseepage ground structure and enrockment dam body; Face slab for water retaining is the main permeation-inhibiting members of loose rock dam, and panel is connected with antiseepage ground structure by periphery fissure.
The method of several building earth and rockfill dam is had: the construction method 1) adopting self-compacting concrete material building concrete dam in prior art, the method is mainly used in the dam structure that building has larger concrete seepage-proofing body, as concrete core-wall loose rock dam, concrete gravity dam etc.; 2) panel adopting composite panel material to make and impervious body construction method thereof, this earth and rockfill dam adopts a kind of composite material to replace concrete to make panel, its composite material face working procedure is complicated, and need design impervious body to assist antiseepage, long in time limit and seepage capability is difficult to ensure; 3) face slab for water retaining be made up of glass screed and frp layer and construction method thereof, this barrier sheet essence also belongs to a kind of composite material face, and its execution conditions require higher, and construction is complicated.Meanwhile, set up dam according to existing embankment, or set up dam on existing earthquake accumulation body basis, in these special places, the main building material of dam is not fill according to dam work designing requirement, and it fills indices and can not grasp completely.
Summary of the invention
Goal of the invention: the object of the present invention is to provide a kind of double face slab loose rock dam, strengthens dam body intensity and antiseepage, is applicable to existing embankment and sets up dam, has on accumulation body basis and set up dam and newly-built dam engineering; The object of the present invention is to provide the construction method of these double face slab loose rock dam.
Technical scheme: for achieving the above object, the present invention adopts following technical scheme:
A kind of double face slab loose rock dam, it comprises enrockment accumulation body, concrete slab, geomembrane and high polymer composite panel, cover high polymer composite panel at the upstream side of described enrockment accumulation body, high polymer composite panel covers geomembrane, oversite concrete panel on geomembrane.
Described enrockment accumulation body cross section is trapezoidal shape.
Described concrete slab is built by reinforcing bar and self-compacting concrete and is formed; The reinforcement ratio of concrete slab is 60 ~ 100kg/m3.
Described high polymer composite panel is made up of the high polymer be filled in accumulation body and enrockment; The thickness of high polymer composite panel is not less than 50cm.
The construction method of described double face slab loose rock dam, 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
Axial perpendicular to dam at the upstream side of trapezoidal dam body, be in tilted layout high polymer grouting pipe, lays one deck geomembrane in high polymer grouting pipe outer side covers; Outside geomembrane, build the template of concrete slab, put into steel mesh reinforcement in template inside, in steel mesh reinforcement, insert the cast of concrete grouting pipe from secret room concrete, form concrete slab; High polymer is injected toward high polymer grouting pipe inside, chemical reaction is there is in high polymer in high polymer grouting pipe inside, volume expansion, high polymer composite panel is formed together with enrockment by the hole of the injected hole filling periphery enrockment of periphery, the thickness of high polymer composite panel is not less than 50cm, and the enrockment be covered with by high polymer composite panel is enrockment accumulation body;
3) stripping
The template of dismounting concrete slab.
Beneficial effect: compared with prior art, double face slab loose rock dam of the present invention can build dam on existing embankment or earthquake accumulation body basis, require relatively low to filling of dam body accumulation body, avoid conventional panels loose rock dam needs the higher loaded filter filling compactness and have antiseepage effect in the process of filling; The advantages such as concrete slab adopts reinforcing bar and self-compacting concrete to build and forms, and can effectively reduce the concrete heat of hydration, and construction link is few; Adopt high polymer composite panel, strengthen the seepage capability of dam body, avoid constructing loaded filter and transition zone at panel rear, construction is simple; Between double face slab, lay geomembrane, can effectively stop self-compacting concrete to flow in accumulation body, for the high polymer composite panel forming even intensity provides guarantee; Construction method speed of application of the present invention is fast, and technique is simple, is suitable for applying, possesses good practicality.
Accompanying drawing explanation
Fig. 1 is the generalized section of double face slab loose rock dam;
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 Fig. 1 ~ 4, a kind of double face slab loose rock dam comprise enrockment accumulation body 1, concrete slab 2, geomembrane 3 and high polymer composite panel 4, high polymer composite panel 4 is covered at the upstream side of enrockment accumulation body 1, high polymer composite panel 4 covers geomembrane 3, oversite concrete panel 2 on geomembrane 3.
Wherein, the cross section of enrockment accumulation body 1 is trapezoidal shape, and concrete slab 2 is built by reinforcing bar 5 and self-compacting concrete 6 and formed; The reinforcement ratio of concrete slab is 60 ~ 100kg/m3.High polymer composite panel 4 is made up of the high polymer 7 be filled in accumulation body and enrockment; The thickness of high polymer composite panel 4 is not less than 50cm.
The construction method of double face slab loose rock dam, 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; Carry out slope trimming according to the intensity parameter of embankment and earthquake dam body materials simultaneously;
2) slip casting
Axially to be in tilted layout high polymer grouting pipe 8 perpendicular to dam at the upstream side of trapezoidal dam body, the spacing 5 ~ 10m between adjacent high polymer grouting pipe 8, lays one deck geomembrane 3 in high polymer grouting pipe 8 outer side covers; Outside geomembrane 3, build the template of concrete slab 2, put into steel mesh reinforcement 5 in template inside, in steel mesh reinforcement 5, insert the cast of concrete grouting pipe from secret room concrete 6, form concrete slab 2; High polymer 7 is injected toward high polymer grouting pipe 8 inside, chemical reaction is there is in high polymer 7 in high polymer grouting pipe 8 inside, volume expansion, high polymer composite panel 4 is formed together with enrockment by the hole of the injected hole 9 filling periphery enrockment of periphery, the thickness of high polymer composite panel 4 is not less than 50cm, and the enrockment be covered with by high polymer composite panel 4 is enrockment accumulation body 1;
3) stripping
The template of dismounting concrete slab 2.
Claims (5)
1. double face slab loose rock dam, it is characterized in that: it comprises enrockment accumulation body (1), concrete slab (2), geomembrane (3) and high polymer composite panel (4), high polymer composite panel (4) is covered at the upstream side of described enrockment accumulation body (1), high polymer composite panel (4) covers geomembrane (3), at the upper oversite concrete panel (2) of geomembrane (3).
2. double face slab loose rock dam according to claim 1, is characterized in that: described enrockment accumulation body (1) cross section is trapezoidal shape.
3. double face slab loose rock dam according to claim 1, is characterized in that: described concrete slab (2) is built by reinforcing bar (5) and self-compacting concrete (6) and formed; The reinforcement ratio of concrete slab is 60 ~ 100kg/m3.
4. double face slab loose rock dam according to claim 1, is characterized in that: described high polymer composite panel (4) is made up of the high polymer be filled in accumulation body (7) and enrockment; The thickness of high polymer composite panel (4) is not less than 50cm.
5. the construction method of the double face slab loose rock dam in claim 1 ~ 4 described in any one, its feature exists
In, comprise 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
Axial perpendicular to dam at the upstream side of trapezoidal dam body, be in tilted layout high polymer grouting pipe (8), lays one deck geomembrane (3) in high polymer grouting pipe (8) outer side covers; Build the template of concrete slab (2) in geomembrane (3) outside, put into steel mesh reinforcement (5) in template inside, in steel mesh reinforcement (5), insert the cast of concrete grouting pipe from secret room concrete (6), form concrete slab (2); High polymer (7) is injected toward high polymer grouting pipe (8) inside, chemical reaction is there is in high polymer (7) in high polymer grouting pipe (8) inside, volume 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, and the enrockment be covered with by high polymer composite panel (4) is enrockment accumulation body (1);
3) stripping
The template of dismounting concrete slab (2).
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 |
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| Publication Number | Publication Date |
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| CN104594297A true CN104594297A (en) | 2015-05-06 |
| CN104594297B CN104594297B (en) | 2016-12-07 |
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Cited By (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 |
| CN105625272A (en) * | 2016-01-30 | 2016-06-01 | 清华大学 | 3 D building system and method for earth-rock 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 |
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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 |
| CN101058974A (en) * | 2005-12-21 | 2007-10-24 | 中国水利水电第一工程局 | Once forming construction technique for concrete panel rock fill dam bedding material and slope fixing mortar |
| CN101831889A (en) * | 2010-05-05 | 2010-09-15 | 河海大学 | Anti-seismic combination slab for earth and rockfill dam and construction method thereof |
| CN102561271A (en) * | 2012-01-11 | 2012-07-11 | 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 |
-
2014
- 2014-11-26 CN CN201410703396.6A patent/CN104594297B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101058974A (en) * | 2005-12-21 | 2007-10-24 | 中国水利水电第一工程局 | Once forming construction technique for concrete panel rock fill dam bedding material and slope fixing mortar |
| CN101831889A (en) * | 2010-05-05 | 2010-09-15 | 河海大学 | Anti-seismic combination slab for earth and rockfill dam and construction method thereof |
| CN102561271A (en) * | 2012-01-11 | 2012-07-11 | 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 |
Cited By (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 |
| CN105625272A (en) * | 2016-01-30 | 2016-06-01 | 清华大学 | 3 D building system and method for earth-rock 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 |
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| Publication number | Publication date |
|---|---|
| CN104594297B (en) | 2016-12-07 |
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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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