CN110424338A - The section partitioned organization of concrete face rockfill dam - Google Patents
The section partitioned organization of concrete face rockfill dam Download PDFInfo
- Publication number
- CN110424338A CN110424338A CN201910796868.XA CN201910796868A CN110424338A CN 110424338 A CN110424338 A CN 110424338A CN 201910796868 A CN201910796868 A CN 201910796868A CN 110424338 A CN110424338 A CN 110424338A
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- Prior art keywords
- dam
- concrete
- pervious concrete
- area
- rockfill
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- 239000004567 concrete Substances 0.000 title claims abstract description 37
- 230000008520 organization Effects 0.000 title claims description 11
- 239000011380 pervious concrete Substances 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 35
- 230000007704 transition Effects 0.000 claims abstract description 17
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 16
- 239000011435 rock Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 230000015271 coagulation Effects 0.000 claims description 8
- 238000005345 coagulation Methods 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 5
- 239000004519 grease Substances 0.000 claims description 5
- 239000002689 soil Substances 0.000 claims description 5
- 230000008595 infiltration Effects 0.000 claims description 4
- 238000001764 infiltration Methods 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 18
- 239000003921 oil Substances 0.000 abstract description 10
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 3
- 239000010687 lubricating oil Substances 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004836 empirical method Methods 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a kind of section partitioned organizations of concrete face rockfill dam, being from upstream to downstream successively includes concrete slab, oil layer, pervious concrete, main rockfill area, secondary rockfill area, pitched work, pervious concrete is set between concrete slab and main rockfill area, instead of traditional bed course area and transition region, and oil layer is smeared on the surface of pervious concrete, dam crest is extended at the top of pervious concrete, bottom extends to dam bottom, thickness >=0.3m.It, can effective solution conventional cushion layered material service life be short, difficulty of construction is big and bedding material gradation requires the problems such as high by replacing bed course area and transition region with pervious concrete, and in pervious concrete surface coating lubricating oil rouge.Convenient and quick construction of the present invention can effectively improve the service life and maintenance difficulty of rock.
Description
Technical field
The present invention relates to concrete face rockfill dam, the section partitioned organization of especially a kind of concrete face rockfill dam.
Background technique
Rock is made of face slab for water retaining, antiseepage ground structure, enrockment dam body three parts, defines panel
The subregion of rock-fill dams, from top to bottom respectively toe board, panel, bed course, Transition Materials, main rockfill area, secondary rockfill area etc..Wherein bed course
Infiltration coefficient is between 10-4Cm/s~10-3Between cm/s, and the effect of Transition Materials thereafter is protection bedding material, prevents its generation
Seepage failure.The main effect of bedding material plays dam body second defence line, passes through length to provide even support to panel
Phase constantly summarizes development, requires material to meet low compressibility, high shear strength, separating resistance in current bedding material selection,
Also there is half certain water penetration simultaneously, the selection of bedding material mostly uses engineering analog method, and there are two types of the common bedding materials in the country, and one
It kind is to be admixed using artificial rubble and Machine-made Sand, another kind is to adopt artificial rubble and natural sand is admixed.Current specifications
Require gradation continuous Transition Materials, maximum particle diameter is no more than 300mm, low compressibility, high shear strength and free drainage performance,
It is general that material etc. is dug using the thin stockpile specially exploited, the natural material through screening processing and jelly.Traditional mats construction technology has slope
Finishing is protected after the extra-fill of face or using construction technologies such as extrusion side walls, construction technology is relative complex, and has the disadvantage that and 1. pass
System method may cause slope surface and lose slope, and extrusion side wall will cause certain effect of contraction to panel；2. upstream face is slope, bed course
Material and Transition Materials easily fall off and drawing crack during dam body settlement, cause panel to come to nothing with bed course, and then do not have effect；③
Part engineering sorting is difficult, and bedding material and Transition Materials need artificial, higher cost；4. work progress interference is larger, influence to apply
The work duration.
Pervious concrete is also known as celluar concrete, forms mixture again through spy by aggregate, cementing material, water and additive
Non-close type celluar concrete product made of different manufacture craft.Cement pervious concrete has production is simple, durability is good etc.
Advantage has obtained different degrees of application in the engineerings such as road, harbour, barricade.The beginning of this century, China carry out permeable mixed in succession
The application of soil is coagulated, complete pervious concrete national sector standard domestic at present is also in construction is write.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of section partitioned organizations of concrete face rockfill dam, adopt
Conventional cushion layered material and Transition Materials are replaced with pervious concrete, grease, reduction pair are smeared between pervious concrete and rock
The constraint of panel improves the intensity and service life in bed course area.
To solve the above-mentioned problems, the technical scheme adopted by the invention is that: a kind of section of concrete face rockfill dam
Partitioned organization, be from upstream to downstream successively include concrete slab, oil layer, pervious concrete, main rockfill area, secondary rockfill area,
Pervious concrete is arranged between concrete slab and main rockfill area in pitched work, instead of traditional bed course area and transition region,
And oil layer is smeared on the surface of pervious concrete, and extending to dam crest at the top of pervious concrete, bottom extends to dam bottom, thickness >=
0.3m。
The material of the pervious concrete is porous light pervious concrete, bulk density 1600kg/m3~2100kg/m3, by force
Degree >=C25, thickness >=0.3m, infiltration coefficient is between 10-4Cm/s~10-3Between cm/s.
Vertical lap seam is arranged in the pervious concrete, and vertical lap seam is arranged according to landform geological conditions, FEM calculation achievement simultaneously
It is arranged referring to engineering experience, vertical lap seam spacing is 8m~16m；It is more than the high dam of 150m for height of dam, horizontal joint, vertical lap seam is set
Sealing is respectively provided with horizontal joint.
The material of the oil layer is lubricating grease, and minimum use temperature is -40 DEG C, and maximum allowable operating temperature (M.A.O.T.) is 120 DEG C, is had
Water-resistance and rust-preventing characteristic, consistency grade is between 2#~4#.
The concrete face rockfill dam is additionally provided with bulwark, upstream head weight, seepage proof curtain, displacement hull, main rockfill area,
Secondary rockfill area, pitched work, bulwark, upstream head weight, seepage proof curtain, displacement hull are required with conventional concrete panels rock-fill dams.
Beneficial effects of the present invention: by replacing bed course area and transition region with pervious concrete, and in pervious concrete table
Face coating lubricating oil rouge, can effective solution conventional cushion layered material service life is short, difficulty of construction is big and bedding material gradation requirement
The problems such as high.Convenient and quick construction of the present invention can effectively improve the service life and maintenance difficulty of rock.
Detailed description of the invention
Fig. 1 is the typical section figure of the section partitioned organization of concrete face rockfill dam of the present invention.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description:
As shown in Figure 1, the section partitioned organization of concrete face rockfill dam of the invention, being from upstream to downstream successively includes
Concrete slab 1, oil layer 2, pervious concrete 3, main rockfill area 4, secondary rockfill area 5, pitched work 6, in 1 He of concrete slab
Pervious concrete 3 is set between main rockfill area 4, instead of traditional bed course area and transition region, and on the surface of pervious concrete
Oil layer 2 is smeared, extends to dam crest at the top of pervious concrete 3, bottom extends to dam bottom, thickness >=0.3m.
The material of the pervious concrete 3 is porous light pervious concrete, bulk density 1600kg/m3~2100kg/m3,
Intensity >=C25, thickness >=0.3m, infiltration coefficient is between 10-4Cm/s~10-3Between cm/s.
Vertical lap seam is arranged in the pervious concrete 3, and vertical lap seam is arranged according to landform geological conditions, FEM calculation achievement simultaneously
It is arranged referring to engineering experience, vertical lap seam spacing is 8m~16m；It is more than the high dam of 150m for height of dam, horizontal joint, vertical lap seam is set
Sealing is respectively provided with horizontal joint.
The material of the oil layer 2 be lubricating grease, it is minimum using temperature be -40 DEG C, maximum allowable operating temperature (M.A.O.T.) be 120 DEG C, tool
There are water-resistance and rust-preventing characteristic, consistency grade is between 2#~4#.
The concrete face rockfill dam is additionally provided with bulwark 7, upstream head weighs 8, seepage proof curtain 9, displacement hull 10, main heap
Stone area 4, secondary rockfill area 5, pitched work 6, bulwark 7, upstream head weighs 8, seepage proof curtain 9, displacement hull 10 is required with common coagulation
Native rock.
Pervious concrete 3 is arranged in the present invention between concrete slab 1 and main rockfill area 4, is replaced using pervious concrete 3
The bed course area of traditional concrete face rockfill dam and transition region smear oil layer 2 on the surface of pervious concrete 3, permeable mixed
3 downstream side dam body sections of solidifying soil are the same as traditional concrete face rockfill dam.
The pervious concrete 3, Ying Jinhang Mix Ratio Test determine optimum mix.Mix-design directly affects mixed
The performance of soil is coagulated, following empirical method does not can be used in specific implementation in mature calculation method to mix-design at present:
1m3Aggregate used in concrete always measures the numerical value of the tight packing density of aggregate, substantially in 1200-1400kg, wherein mainly
Using coarse aggregate, fine aggregate amount general control is within the 20% of total aggregate quality；Cement consumption is in 250-350kg/m3Range
It is interior；The ratio of mud is between 0.20-0.35；Pervious concrete mix is more stiff, general to be weighed using vigorous consistency factor is tieed up
Amount, it is proper within 10~20s.After primary Calculation match ratio, trial mix, measurement mixture workability, it may be verified that proportion is set
Whether count reasonable.
The oil layer 2 has stronger water-resistance, and consistency grade should be 2#~4#, such as the prosperous profit petrochemical industry of Dongying is limited
No. 003 lithium base grease of company's production, cone penetration: 325~235 (mm), dropping point: 176~189 (mm), needle penetration: 325~
235 (mm), meet requirement of the invention.
The concrete slab 1, main rockfill area 4, secondary rockfill area 5, pitched work 6, bulwark 7, upstream head weigh 8, antiseepage
The zone materials such as curtain 9, displacement hull 10 requirement, with tradition concrete face rockfill dam, referring to " concrete face rockfill dam designs
Specification " (Sl228-2013).
The hardening strength C25 or more of pervious concrete has preferable water penetration, can control hole by processing technology
Rate and permeation rate, while there is preferable durability and freeze-thaw resistance, meet the characteristic of panel rock fill dam bedding and Transition Materials.
By replacing bed course area and transition region with pervious concrete, and in pervious concrete surface coating lubricating oil rouge, can effectively solve
Certainly conventional cushion layered material service life is short, difficulty of construction is big and bedding material gradation requires the problems such as high.Using the face of such form
Sheetpile masonry dam section has following characteristics and advantages: 1. upstream slope surface one-pass molding, does not need to carry out special precautions, simplification is applied
Work process；2. eliminating bed course area and transition region, the main rockfill area of direct rapid construction, secondary rockfill area avoid traditional sectional form
Bedding material and Transition Materials generated under larger hydraulic slope seepage failure the phenomenon that；3. after upstream slope surface is formed, surface is flat
Whole degree is easily controllable, and panel is facilitated to construct；4. it is quick, convenient to construct, material source is easily obtained, and cost is relatively low；5. if construction
Pervious concrete water blocking, the highly-safe dam body in bedding material water blocking can be used in phase water blocking；6. pervious concrete is directly poured and is built up
Type, it is stronger for the supporting role of concrete slab, be conducive to safety of dam body.
It is specifically described below, in the present embodiment, after the completion of dam foundation excavation, carries out main rockfill area 4, secondary rockfill area first
5, the dam embankment of displacement hull 10, it is desirable that the stockpile of adjacent regions, which has been put down, when construction fills, form of construction work and require with tradition
Construction of Concrete Face Rockfill Dam mode is identical.After main rockfill area 4, secondary rockfill area 5, displacement hull 10 fill certain altitude,
The construction of pervious concrete 3 can be carried out, its top should be lower than dam body cope level be filled when pervious concrete 3 pours, and height difference is not by
It is preferably 5~20m with height of dam, height of dam person takes large values, and vertical lap seam and horizontal joint is arranged in pervious concrete, and sets water sealing structure.To saturating
After the completion of the solidification of water coagulation soil, the construction of concrete slab 1 can be carried out, construction requirement is according to " concrete face rockfill dam design rule
Model " (Sl228-2013) regulation determine.Finally, upstream head, which is respectively set, in dam body upstream slope foot according to design requirement weighs 8, it is whole
A construction is completed.
Above-mentioned example is merely to illustrate technical idea and feature of the invention, and its object is to make technology in the art
Personnel only cannot limit the scope of the patents of the invention with this example it will be appreciated that the contents of the present invention and implement accordingly, i.e., all
Same changes or modifications made by disclosed spirit, still fall in the scope of the patents of the invention.
Claims (5)
1. a kind of section partitioned organization of concrete face rockfill dam, which is characterized in that being from upstream to downstream successively includes coagulation
Native panel (1), oil layer (2), pervious concrete (3), main rockfill area (4), secondary rockfill area (5), pitched work (6), in coagulation
Pervious concrete (3) are set between native panel (1) and main rockfill area (4), instead of traditional bed course area and transition region, and saturating
Oil layer (2) are smeared on the surface of water coagulation soil, extend to dam crest at the top of pervious concrete (3), and bottom extends to dam bottom, and thickness >=
0.3m。
2. the section partitioned organization of concrete face rockfill dam according to claim 1, which is characterized in that the permeable coagulation
The material of native (3) is porous light pervious concrete, bulk density 1600kg/m3~2100kg/m3, intensity >=C25, thickness >=
0.3m, infiltration coefficient is between 10-4Cm/s~10-3Between cm/s.
3. the section partitioned organization of concrete face rockfill dam according to claim 1, which is characterized in that the permeable coagulation
Vertical lap seam is arranged in native (3), and vertical lap seam setting is arranged according to landform geological conditions, FEM calculation achievement and referring to engineering experience,
Vertical lap seam spacing is 8m~16m；It is more than the high dam of 150m for height of dam, horizontal joint is set, and vertical lap seam and horizontal joint are respectively provided with only
Water.
4. the section partitioned organization of concrete face rockfill dam according to claim 1, which is characterized in that the oil layer
(2) material is lubricating grease, and minimum using temperature is -40 DEG C, and maximum allowable operating temperature (M.A.O.T.) is 120 DEG C, is had a water resisting property and rust-preventing characteristic,
Consistency grade is between 2#~4#.
5. the section partitioned organization of the concrete face rockfill dam according to claim 1, which is characterized in that the coagulation
Native rock is additionally provided with bulwark (7), upstream head weighs (8), seepage proof curtain (9), displacement hull (10), main rockfill area (4),
Secondary rockfill area (5), pitched work (6), bulwark (7), upstream head weight (8), seepage proof curtain (9), displacement hull (10) are required with general
Logical concrete face rockfill dam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910796868.XA CN110424338A (en) | 2019-08-27 | 2019-08-27 | The section partitioned organization of concrete face rockfill dam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910796868.XA CN110424338A (en) | 2019-08-27 | 2019-08-27 | The section partitioned organization of concrete face rockfill dam |
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| Publication Number | Publication Date |
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| CN110424338A true CN110424338A (en) | 2019-11-08 |
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ID=68417709
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576349A (en) * | 2020-06-24 | 2020-08-25 | 中水北方勘测设计研究有限责任公司 | Simplified construction partitioned rock-fill dam |
| CN113494065A (en) * | 2021-07-27 | 2021-10-12 | 清华大学 | Soft rock rigid environment-friendly dam |
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| CN1891911A (en) * | 2005-07-04 | 2007-01-10 | 镇江久久生态材料有限公司 | Method for constructing ventilating permeable ecological concrete water-storage side slope |
| CN103643656A (en) * | 2013-11-22 | 2014-03-19 | 河海大学 | High rock-fill dam membrane anti-seepage body on deep coverage layer and construction method of high rock-fill dam membrane anti-seepage body |
| CN104153322A (en) * | 2014-08-04 | 2014-11-19 | 河海大学 | Method for connecting high concrete face rockfill dam diaphragm wall with toe board on deep and thick overlay through membrane |
| CN108892527A (en) * | 2018-07-12 | 2018-11-27 | 山东农业大学 | Pervious concrete loaded filter, preparation method and protective slope structure for slope protection behind dam |
| CN210857126U (en) * | 2019-08-27 | 2020-06-26 | 中水北方勘测设计研究有限责任公司 | Section partition structure of concrete panel rock-fill dam |
-
2019
- 2019-08-27 CN CN201910796868.XA patent/CN110424338A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1891911A (en) * | 2005-07-04 | 2007-01-10 | 镇江久久生态材料有限公司 | Method for constructing ventilating permeable ecological concrete water-storage side slope |
| CN103643656A (en) * | 2013-11-22 | 2014-03-19 | 河海大学 | High rock-fill dam membrane anti-seepage body on deep coverage layer and construction method of high rock-fill dam membrane anti-seepage body |
| CN104153322A (en) * | 2014-08-04 | 2014-11-19 | 河海大学 | Method for connecting high concrete face rockfill dam diaphragm wall with toe board on deep and thick overlay through membrane |
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| CN210857126U (en) * | 2019-08-27 | 2020-06-26 | 中水北方勘测设计研究有限责任公司 | Section partition structure of concrete panel rock-fill dam |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576349A (en) * | 2020-06-24 | 2020-08-25 | 中水北方勘测设计研究有限责任公司 | Simplified construction partitioned rock-fill dam |
| CN113494065A (en) * | 2021-07-27 | 2021-10-12 | 清华大学 | Soft rock rigid environment-friendly dam |
| CN113494065B (en) * | 2021-07-27 | 2024-06-11 | 清华大学 | Soft rock rigidity environmental protection dam |
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Application publication date: 20191108 |