CN106120663A - A kind of CFRD - Google Patents
A kind of CFRD Download PDFInfo
- Publication number
- CN106120663A CN106120663A CN201610699877.3A CN201610699877A CN106120663A CN 106120663 A CN106120663 A CN 106120663A CN 201610699877 A CN201610699877 A CN 201610699877A CN 106120663 A CN106120663 A CN 106120663A
- Authority
- CN
- China
- Prior art keywords
- cfrd
- rock
- district
- fill dams
- concrete slab
- 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.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Revetment (AREA)
Abstract
The present invention relates to a kind of CFRD, described rock-fill dams include to downstream successively from upstream: concrete slab, bed course district, transition region, rockfill area, upstream, enrockment transition region, rockfill area, downstream and downstream protection slope；Described concrete slab also includes that pressure property seam, the sidewall of described pressure seam are provided with truss structure.The superior effect of the present invention is: effectively prevent the concrete slab fracture produced because of the sedimentation of dam and lateral local compression from destroying.
Description
Technical field
The present invention relates to hydraulic engineering technical field, be specifically related to a kind of CFRD.
Background technology
Dam, be for block rivers current with raising of water level or reconcile the water yield water retaining structure.Dam can be divided into
Concrete dam and the big class of earth and rockfill dam two；Concrete dam refers to concreting (or rolling) or with precast concrete block assembling
The dam become, earth and rockfill dam refers to by local earth material, building stones or compound, through throwing, the checkdam that method heap builds up such as rolls, when
When dam body materials is main with soil and gravel, earth dam, when being called main with rock ballast, cobble, shot material, title rock-fill dams；When two classes are worked as
When ground material all accounts for significant proportion, claim soil stone mixed dam.The type of dam is according to the natural conditions of dam site, construction material, construction
The Integrated comparative such as place, water conservancy diversion, duration, cost are selected.During rainy season, dam can suitably sluice, and sluicing can be controlled flood, be generated electricity；Drought
Ji Shi, the water storage in dam can serve as plant irrigation, resident's water supply etc..Dam can play the work of Adjust and use water resource
With.
CFRD is with rockfill as supporting structure, and casting concrete panel in surface is as anti-at its upstream
Ooze the rock-fill dams of structure, be called for short rock or face dam.CFRD includes following characteristics:
(1), the good stability of dam slope, dam slope toe is substantially suitable with the natural angle of repose of loose dumped rockfill, less than grinding
The internal friction angle of pressure enrockment.
(2), face slab for water retaining be located at the upstream face of rockfill, the performance bearing water pressure is good；Dam body good water permeability, hardly
Affected by penetration.
(3), dam body there is good anti-seismic performance, seismic deformation is little, does not produce pore water pressure because of earthquake；Though earthquake
Panel crack may be caused to cause embankment seepage to increase, but will not dam break.
(4), construction diversion and convenience of passing the flood period.
(5), during construction, the impact of climate condition is less.
CFRD becomes the type of first-selection of building a dam at present because of feature as above, but, concrete surface sheetpile
Masonry dam there is also fatal defect because of the reason of himself structure: in the infall process of dam, and concrete slab all exists
Occur in that crack and seepage to some extent, reduce overall barrier properties and the durability of panel.
Such as, number of patent application is: 201510827954.4, entitled: a kind of grating type CFRD, its
Disclose a kind of grating type CFRD, including: bulwark, dam crest road, rockfill area, transition zone, toe board, antiseepage
Curtain, armored concrete grid, armored concrete panel, bed course, described armored concrete grid includes horizontal grid, longitudinal lattice
Grid, described rockfill area upstream face is provided with transition zone, and described transition zone upstream face arranges the horizontal grid mutually reported to the leadship after accomplishing a task, longitudinal lattice
Grid, are formed with multiple grill unit between horizontal grid, longitudinal grid, are provided with bed course, described bed course in described grill unit
On be provided with armored concrete panel；Described transition zone bottom is provided with toe board, is provided with seepage proof curtain bottom described toe board；Institute
State transition zone top and be provided with bulwark；Top, described rockfill area is provided with dam crest road.A kind of grating type that the present invention provides
CFRD, has anti-seismic performance strong, and armored concrete panel is not likely to produce extruding destruction, cracking destruction, waterproof
The advantage that seepage prevention system degree of safety is high.
CFRD of the prior art, during dam settlement, all there is difference in concrete slab
The appearance crack of degree and seepage, have a strong impact on the safety and stability of dam.Often after dam completion, crack and seepage position
The repairing put just has become the groundwork of dam later maintenance, which increases the maintenance cost of dam.
Prior art exists as above defect, it is difficult to adapt to development trend and reality that current CFRD is built
Border needs.In order to overcome defect present in above-mentioned prior art, the present inventor combines design for many years and construction experience, proposes
A kind of CFRD.
Summary of the invention
The present invention is achieved through the following technical solutions, and a kind of CFRD, described rock-fill dams are from upstream
Include successively to downstream: concrete slab, bed course district, transition region, rockfill area, upstream, enrockment transition region, rockfill area, downstream and under
Trip bank protection；Described concrete slab also includes that pressure property seam, the sidewall of described pressure seam are provided with truss structure.
Further, described truss structure is metal truss structure.
Further, described truss structure is galvanized steel truss structure.
Further, reverse U-shaped compression reinforcement is also included between described pressure seam.
Further, described rock-fill dams also include that catchment, described catchment are " ∠ " type, and one end, described catchment connects
In the downstream base portion of described rock-fill dams, the other end is connected to the dam crest bottom of described rock-fill dams.
Further, the angle of described " ∠ " type catchment is 60-75 °, preferably 68 °.
Further, described catchment also includes that drainage toe district, described drainage toe district are positioned under described rock-fill dams
Bottom trip；Described drainage toe district is communicated in described catchment.
Further, described rock-fill dams also include that blinding layer district, described blinding layer district are positioned at the bottom of the upstream of rock-fill dams
Portion the bottom connection with described concrete slab.
Further, the aggregate size in described blinding layer district is 10～40mm.
Further, described blinding layer district is connected by toe board with the dam foundation of described rock-fill dams.
Further, described rock-fill dams also include that upstream apron district, described upstream apron district are positioned at the upper of described rock-fill dams
Bottom trip, described upstream apron district is positioned on the bottom of described blinding layer district and described concrete slab.
Compared with prior art, the superior effect of the present invention is:
1, rock-fill dams of the present invention are by arranging truss structure, effectively between stitching in the pressure of described concrete slab
The described concrete slab fracture produced because of the sedimentation of described rock-fill dams and lateral local compression is prevented to destroy.
2, rock-fill dams of the present invention are by the setting in blinding layer district and blinding layer district and the connected mode of the dam foundation, make
Bottom the upstream of described concrete slab firmer.
3, rock-fill dams of the present invention are by arranging described catchment, and the discharge making the infiltration of described rock-fill dams is more smooth and easy.
Accompanying drawing explanation
Fig. 1 is the structural representation of rock-fill dams of the present invention；
Fig. 2 is the schematic diagram of the truss structure of the sidewall setting of concrete slab of the present invention pressure property seam；
Fig. 3 is the structural representation of " U " of the present invention type compression reinforcement.
Reference is as follows:
1-concrete slab, 2-bed course district, 3-transition region, rockfill area, 4-upstream, 5-enrockment transition region, 6-downstream enrockment
District, 7-pressure property seam, 8-truss structure, 9-catchment, 10-drainage toe district, 11-blinding layer district, the 12-dam foundation, 13-upstream paving
Cover region, 14-dam crest, 15-downstream protection slope, 16-" U " type compression reinforcement.
Detailed description of the invention
Below in conjunction with the accompanying drawings the specific embodiment of the invention is described in further detail.
As shown in Figures 1 and 2, described rock-fill dams include to downstream successively from upstream: concrete slab 1, bed course district
2, transition region 3, rockfill area, upstream 4, enrockment transition region 5, rockfill area, downstream 6 and downstream protection slope 15；Described concrete slab 1 also wraps
Including pressure property seam 7, the sidewall of described pressure seam 7 is provided with truss structure 8.
Described pressure seam 7 is the vertical joint between a kind of concrete slab 1 eliminating harmful cracks and convenient construction setting,
Described seam is positioned in the middle part of riverbed and will be squeezed, and therefore referred to as pressure property stitches 7.Described rock-fill dams owing to being built up by enrockment,
Needing an infall process, several years of some needs, even reach more than 10 years, dam settlement also instability does not restrains, because of dam
Dam foundation riverbed and the difference of two sides elevation, cause enrockment filled height difference, and the diversity of enrockment material, general dam foundation river
Bed height is maximum, gradually to two sides transition, based on such structure, causes the difference along axis of dam sedimentation, mixing of dam upstream
There is the displacement tilted in the middle part of riverbed and extruding force in solidifying soil panel 1, owing to stress distribution is uneven and cause stress to concentrate, surpasses
Crossing the comprcssive strength of concrete slab 1, concrete slab 1 extruding often leading to pressure property seam 7 local, riverbed destroys, and this is coagulation
The soil common mass defect of rock, as processed not in time, causes seepage, dam safety is caused great threat.
By the setting of truss structure 8, strengthen the entire compression intensity of concrete slab 1, effectively prevent concrete
Panel 1 destroys because of extruding.
Described bed course district 2 uses continuous grading fines stone, the particle diameter of described fines stone to be 115～130mm.
Described transition region 3 uses continuous grading fines stone, the particle diameter of described fines stone to be 85～100mm.
Described enrockment transition region 5 is the boundary of rockfill area, upstream 4 and rockfill area, downstream 6, according to dam body surrounding, height of dam
With the position that the different situations of the dam foundation arrange described enrockment transition region 5.
The ratio of mud of described concrete slab 1 is 0.45～0.5, sand coarse aggregate ratio 35%～40%, unit consumption of water 120～
160kg/m3, additive 0.75%～2%.
The placed rockfill intensity of described downstream protection slope 15 > 80MPa.
Described truss structure 8 is metal truss structure.
Described truss structure 8 is galvanized steel truss structure.
Also including reverse U-shaped compression reinforcement 16 between described pressure seam 7, the length of " U " type compression reinforcement 16 is general
It is designed as 1.2m～1.5m, and entire compression effect can be played with Welding steel truss.
By the setting of " U " type compression reinforcement 16, further enhance the comprcssive strength of concrete slab 1.
Described rock-fill dams also include that catchment 9, described catchment 9 are " ∠ " type, and one end, described catchment 9 is communicated in enrockment
Dam downstream base portion, the other end is connected to dam crest 14 bottom of rock-fill dams.
The angle of described " ∠ " type catchment is 60-75 °, preferably 68 °.
Described " ∠ " type catchment interior surface is
Described catchment 9 also includes that drainage toe district 10, described drainage toe district 10 are positioned at described rock-fill dams downstream base portion；
Described drainage toe district 10 is communicated in described catchment 9.
Described rock-fill dams also include that blinding layer district 11, described blinding layer district 11 are positioned at bottom the upstream of described rock-fill dams
And connect with the bottom toe board of described concrete slab 1, play a supporting role to bottom described concrete slab 1.
The aggregate size in described blinding layer district 11 is 10～40mm.
The paving thickness in described blinding layer district 11 is less than 20cm, uses rolling apparatus compacting, then carries out the stand of next layer
Paving.
Described blinding layer district 11 is connected by toe board with the dam foundation 12.
Described rock-fill dams also include upstream apron district 13, and described upstream apron district 13 is positioned at bottom the upstream of rock-fill dams, institute
State upstream apron district 13 to be positioned on the bottom of blinding layer district 11 and concrete slab 1.
The present invention is not limited to above-mentioned embodiment, in the case of without departing substantially from the flesh and blood of the present invention, and this area skill
Art personnel it is contemplated that any deformation, improve, replace and each fall within protection scope of the present invention.
Claims (10)
1. a CFRD, described rock-fill dams include to downstream successively from upstream: concrete slab, bed course district,
Transition region, rockfill area, upstream, enrockment transition region, rockfill area, downstream and downstream protection slope；It is characterized in that, described concrete slab is also
Including pressure property seam, the sidewall of described pressure seam is provided with truss structure.
CFRD the most according to claim 1, it is characterised in that described truss structure is metal truss knot
Structure.
CFRD the most according to claim 1, it is characterised in that described truss structure is galvanized steel truss
Structure.
CFRD the most according to claim 1, it is characterised in that also include between described pressure seam being inverted
" U " type compression reinforcement.
CFRD the most according to claim 1, it is characterised in that described rock-fill dams also include catchment,
Described catchment is " ∠ " type, and one end, described catchment is communicated in rock-fill dams downstream base portion, and the other end is connected to the dam of rock-fill dams
Top bottom.
CFRD the most according to claim 1, it is characterised in that described rock-fill dams also include blinding layer
District, described blinding layer district be positioned at bottom the upstream of rock-fill dams and with the bottom connection of concrete slab.
CFRD the most according to claim 1, it is characterised in that the ratio of mud of described concrete slab is
0.45～0.5, sand coarse aggregate ratio 35%～40%, unit consumption of water 120～160kg/m3。
CFRD the most according to claim 5, it is characterised in that described catchment also includes drainage toe
District, described drainage toe district is positioned at rock-fill dams downstream base portion；Described drainage toe district is communicated in catchment.
CFRD the most according to claim 5, it is characterised in that the angle of described " ∠ " type catchment is
60-75°。
CFRD the most according to claim 6, it is characterised in that the aggregate grain in described blinding layer district
Footpath is 10～40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610699877.3A CN106120663B (en) | 2016-08-22 | 2016-08-22 | A kind of concrete face rockfill dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610699877.3A CN106120663B (en) | 2016-08-22 | 2016-08-22 | A kind of concrete face rockfill dam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106120663A true CN106120663A (en) | 2016-11-16 |
| CN106120663B CN106120663B (en) | 2018-05-25 |
Family
ID=57280250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610699877.3A Active CN106120663B (en) | 2016-08-22 | 2016-08-22 | A kind of concrete face rockfill dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106120663B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185006A (en) * | 2019-05-30 | 2019-08-30 | 中国葛洲坝集团第一工程有限公司 | Narrow Valleys landform high CFRD |
| CN116815712A (en) * | 2023-07-11 | 2023-09-29 | 中国水利水电第十二工程局有限公司 | Basalt fiber concrete face rockfill dam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06240682A (en) * | 1993-02-16 | 1994-08-30 | Kajima Corp | Expansion caisson |
| KR101367657B1 (en) * | 2011-11-25 | 2014-02-28 | 주식회사 정원종합산업 | Method for constructing face slab of concrete face rockfill dam |
| CN104110012A (en) * | 2014-07-28 | 2014-10-22 | 中国电建集团西北勘测设计研究院有限公司 | Low-permeability rock-fill material concrete panel rock-fill dam |
| CN204530633U (en) * | 2015-02-06 | 2015-08-05 | 中国电建集团华东勘测设计研究院有限公司 | The soft rock that a kind of subregion is arranged builds rock dam body |
| CN205444125U (en) * | 2015-12-26 | 2016-08-10 | 江南水利水电工程公司 | Concrete faced rockfill dam |
-
2016
- 2016-08-22 CN CN201610699877.3A patent/CN106120663B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06240682A (en) * | 1993-02-16 | 1994-08-30 | Kajima Corp | Expansion caisson |
| KR101367657B1 (en) * | 2011-11-25 | 2014-02-28 | 주식회사 정원종합산업 | Method for constructing face slab of concrete face rockfill dam |
| CN104110012A (en) * | 2014-07-28 | 2014-10-22 | 中国电建集团西北勘测设计研究院有限公司 | Low-permeability rock-fill material concrete panel rock-fill dam |
| CN204530633U (en) * | 2015-02-06 | 2015-08-05 | 中国电建集团华东勘测设计研究院有限公司 | The soft rock that a kind of subregion is arranged builds rock dam body |
| CN205444125U (en) * | 2015-12-26 | 2016-08-10 | 江南水利水电工程公司 | Concrete faced rockfill dam |
Non-Patent Citations (2)
| Title |
|---|
| 付军: "砂砾石面板堆石坝设计的技术分析", 《大坝技术及长效性能研究进展》 * |
| 林崇勇: "甲岩水电站面板堆石坝一期面板施工", 《云南水力发电》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185006A (en) * | 2019-05-30 | 2019-08-30 | 中国葛洲坝集团第一工程有限公司 | Narrow Valleys landform high CFRD |
| CN110185006B (en) * | 2019-05-30 | 2020-09-15 | 中国电建集团成都勘测设计研究院有限公司 | High face rockfill dam for narrow river valley |
| CN116815712A (en) * | 2023-07-11 | 2023-09-29 | 中国水利水电第十二工程局有限公司 | Basalt fiber concrete face rockfill dam |
| CN116815712B (en) * | 2023-07-11 | 2024-02-13 | 中国水利水电第十二工程局有限公司 | Basalt fiber concrete face rockfill dam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106120663B (en) | 2018-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105297686B (en) | A kind of grating type CFRD | |
| CN111851505B (en) | Construction method and structure of filling type anti-seepage core wall earth-rock dam | |
| CN107190602A (en) | A kind of river degradation section pile formula foam concrete light road bank structure and construction method | |
| CN203393530U (en) | Anti-floating lightweight high-fill embankment structure | |
| CN108457249B (en) | Structural design and construction method of composite panel gravel dam | |
| CN207846349U (en) | A kind of water blocking earth dam | |
| CN111705752A (en) | Clay core wall dam with seepage-proofing and self-healing functions and implementation method thereof | |
| CN109338998A (en) | A kind of stainless steel faceplate rock-fill dams | |
| CN202989867U (en) | Junked tire protective surface combined steel-structure check dam | |
| CN110847124A (en) | Concrete panel rock-fill dam with multiple anti-seepage structures and construction method thereof | |
| Ma et al. | Key technical problems of extra-high concrete faced rock-fill dam | |
| US20170016200A1 (en) | Method for Improving an Inwards Stability of a Levee | |
| CN106087880B (en) | A kind of dam that 300 meter level is high and its construction technology | |
| Herrier et al. | The Friant-Kern canal: a forgotten example of lime-treated structure in hydraulic conditions | |
| CN106120663B (en) | A kind of concrete face rockfill dam | |
| CN208981282U (en) | A kind of high earthquake territory concrete face rockfill dam dam crest structure | |
| CN105862662B (en) | A kind of curl arched mole | |
| CN106012971A (en) | Vegetation concrete protection slope and construction method thereof | |
| CN107447731B (en) | A kind of mixed dam and its construction method | |
| CN205999849U (en) | A kind of highlight lines frigid mountainous areas highway cutting gradient slope ecological protection system | |
| CN104695455B (en) | High-flow and high-head antiscour and anti-seepage overflow cofferdam structure and construction method thereof | |
| KR20160025670A (en) | Repair-reinforcement method of the reservoir | |
| Emiroglu | Influences on selection of the type of dam | |
| KR20150021098A (en) | Waterside structures reinforced method | |
| CN212426994U (en) | Clay core wall dam with seepage-proofing and self-healing functions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |