CN205576857U - Be suitable for hydraulic and hydroelectric engineering's super high enrockment dam structure - Google Patents
Be suitable for hydraulic and hydroelectric engineering's super high enrockment dam structure Download PDFInfo
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- CN205576857U CN205576857U CN201620347156.1U CN201620347156U CN205576857U CN 205576857 U CN205576857 U CN 205576857U CN 201620347156 U CN201620347156 U CN 201620347156U CN 205576857 U CN205576857 U CN 205576857U
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Abstract
The utility model provides a be applicable to hydraulic and hydroelectric engineering's super high enrockment dam structure. A be suitable for hydraulic and hydroelectric engineering's super high enrockment dam structure which characterized in that: the rock -fill dam is including rolling cyclopean concrete base, enrockment dam body and concrete seepage -proofing panel, roll the cyclopean concrete base and be and highly be 90m by what the multilayer rolled that a stone concrete layer passes through that the vibroroller cmpacting forms 110m's base, every layer is rolled a stone concrete layer and passes through the vibroroller cmpacting by lower floor's concrete, middle level piece stone and upper concrete to form, concrete seepage -proofing panel is piling up the good prevention of seepage panel that cyclopean concrete base and the enrockment dam body upper reaches adopts concrete placement to form that rolls. The utility model discloses the local excavated material of make full use of is accomplished basically not have and is abandoned the material, and is energy -concerving and environment -protective, improves work efficiency, reduction of erection time, with low costs, and the wholeness can be good.
Description
Technical field
This utility model relates to Hydraulic and Hydro-Power Engineering material, structure and technical field of construction, and specifically one
Plant the super-high rockfill dam structure being suitable for Hydraulic and Hydro-Power Engineering.
Background technology
CFRD is dam the most competitive and most with prospects in current Dam constructions
One of type.This dam type has that cost is low, safety is high and the plurality of advantages such as strong adaptability, thus is subject to
The most attention of Ba Gongjie, has fabulous application prospect, is the first-selected dam type of many engineerings, at present
China built and at the rock built with more than more than 150, wherein 37 of more than 100m.Existing
For the development trend of concrete rock-fill dams be dam build higher and higher, project scale increasing, China passes through
The construction of the engineerings such as Tianshengqiao-I (maximum height of dam 178m), Shui Buya (maximum height of dam 233m) is real
Trampling, dam construction technique relative maturity, certain skill has been established in the development for 300m level superelevation rock
Art basis.
Along with the quickening of Southwestern China hydroelectric development progress, in the economically underdeveloped area such as gold of having inconvenient traffic
Sha Jiang, the Lancang River, Nujiang, Yalongjiang River, Dadu River and the upper reaches of the Yellow River and the Yarlung Zangbo River in Tibet
Deng, there are many river valley topographic and geologic conditions suitably building high CFRD, Ru Gushui, Ma Ji etc.
Power station, height of dam is all 250～about 300m, because not holding 300m level high CFRD
Engineering characteristic, key technology and operation characteristic, it is impossible to directly select rock scheme, and select
External freight volume is big, cost is high concrete dam scheme or volume is big and occupy cultivated land multipair environment and water
Soil keeps easily causing the native core wall rockfill dam scheme of adverse effect, some engineerings in Jin Ba district even without
Available impermeable soil, this makes economic index of hydropower sta competitiveness reduce.Therefore, engineering construction is each
Side is highly desirable builds all breakthroughs in technology at 300m level high CFRD.
But, face the construction object of 300m level the most higher superelevation rubble dam, still suffer from multiple pass
The rationalization partition of a key technology difficult problem, such as super-high rockfill dam, dam material characteristic are to dam deformation characteristic
Impact, the deformation characteristic of super-high rockfill dam and safety, seismic seeurity and engineering measure etc., especially
It is to build a dam on deep alluvion foundation, it is difficult to breaking through the limitation of height of dam, these become development superelevation
The technical bottleneck of rock.
Summary of the invention
This utility model provides a kind of superelevation heap being suitable for Hydraulic and Hydro-Power Engineering according to the deficiencies in the prior art
Masonry dam structure, the concrete pedestal of this super-high rockfill dam structure uses and rolls rubble concrete structure, from
Angularly, solve to build a dam on deep alluvion foundation a difficult problem, breaks through dam for material, structure and form of construction work
Height limitation, it is achieved the construction object of superelevation rock.
The technical scheme that this utility model provides: described a kind of super-high rockfill dam being suitable for Hydraulic and Hydro-Power Engineering
Structure, it is characterised in that: described rock-fill dams include rolling rubble concrete base, enrockment dam body and mixing
Solidifying soil face slab for water retaining, described in roll rubble concrete base be to be rolled rubble concrete layer by multilamellar to pass through
The base that height is 90m-110m that vibroroller cmpacting is formed, every layer is rolled rubble concrete layer is by lower floor
Concrete, middle level block stone and upper layer concrete are formed by vibroroller cmpacting, described concrete anti-seepage panel
It is that the rubble concrete base that rolls puzzled at heap uses concreting to be formed with enrockment dam body upstream
Face slab for water retaining.
This utility model preferably technical scheme: described every layer of height rolling rubble concrete layer is
0.5m～1.0m.
This utility model preferably technical scheme: described every layer of lower floor's coagulation rolling rubble concrete layer
Soil uses graduation two concrete, and concrete slump is at 70mm～150mm；Described upper layer concrete is adopted
With a grating grinding coagulation soil, concrete VC value is at 1s～5s；Described middle level block stone is job site
The block stone of a diameter of more than the 40mm dug or cobble.
This utility model preferably technical scheme: the sand material of described upper layer concrete uses job site to dig
A diameter of 0～the sand material of 5mm and 5～20mm；The sand material of lower-layer concrete uses construction existing
A diameter of 0～the sand material of 5mm, 5～20mm, 20～40mm that field is dug；Described middle level block stone is
The block stone of a diameter of 40mm～300mm that job site is dug or cobble.
This utility model preferably technical scheme: described enrockment dam body uses rock.
The construction method of a kind of super-high rockfill dam structure being suitable for water power hydraulic engineering, specifically comprises the following steps that
(1) work of early stage of constructing, according to the associated specifications of rock, process the dam foundation with
Bank slope；
(2), after treating that step (1) completes, the dam foundation handled well uses graduation two concreting
Lower-layer concrete, the slump of lower-layer concrete at 70mm～150mm, thickness is
200mm-300mm；
(3) before the non-initial set of lower-layer concrete, block stone or the cobble of choosing more than grain diameter 40mm exist
Middle level block stone is piled up in lower-layer concrete；
(4) after treating that middle level block clitter puzzles, arranged smooth after on the block stone of middle level, pour upper strata again
Concrete, until the stone space of Concrete Filled middle level, upper strata block stone, and exceed middle level block stone
100mm-200mm is high, and upper layer concrete uses VC value at a grating grinding coagulation soil of 1s～5s；
(5), after the concrete spreading of upper strata, and before non-initial set, use vibrated roller at upper layer concrete
Upper vibroroller cmpacting, until the uniform bleeding in surface, is formed after the concrete setting of upper strata and rolls rubble concrete
Layer, its frequency of vibration 20Hz-40Hz, exciting force 200kN-400kN, the vibrating roller speed of travel exists
1.0km/h-1.5km/h；
(6) step (2) to (5) is repeated, it is achieved roll the construction in layer of rubble concrete base, directly
To the height of 90m-110m, formed and roll rubble concrete base；
(8) the construction method continuation construction using conventional panels rock-fill dams on rubble concrete base is being rolled
Enrockment dam body high for 200m-300m, enrockment dam body is divided into bed course district, transition from upstream toward downstream
District, main rockfill area and rockfill area, downstream；
(9), after treating that the rock-fill dams body construction in step (8) completes, rubble concrete base is being rolled
Upstream substage construction concrete anti-seepage panel with enrockment dam body.
All-hydraulic single vibratory road roller, every layer of stone roller is used in the vibrated roller described in step (5)
Briquetting stone concrete layer number of rolling 0-15 time, after having rolled, every layer is rolled rubble concrete layer height
For 0.5m～1.0m.
The sand material of described upper layer concrete use that job site digs a diameter of 0～5mm and 5～
The sand material of 20mm；The sand material of lower-layer concrete use that job site digs a diameter of 0～5mm,
The sand material of 5～20mm, 20～40mm；Described middle level block stone be job site dig a diameter of
The block stone of more than 40mm or cobble.
This utility model face, storehouse of specifically constructing first pours lower-layer concrete, then piles up existing on concrete
Field excavated material, excavated material pours layer concrete again, rolls face, storehouse finally by vibrating roller, increases
The overall uniformity of structure, ultimately forms and firm rolls rubble concrete structure.Every layer is rolled block stone
Concrete thickness 0.5m～1.0m, construct the most continuously, the most highly reaches about 100m, as
The base construction of superelevation rock.
In this utility model, lower-layer concrete is graduation two concrete.The concrete all using place engineering is used
Raw material, forms including water, cement, mineral admixture, sand material and additive mixing.Described
Middle level block stone is local water power hydraulic engineering excavation block stone or the cobble of surface cleaning.Described upper strata is mixed
Solidifying soil is a grating grinding coagulation soil.All use the concrete raw material of place engineering, including water,
Cement, mineral admixture, sand material and additive mixing composition.Concrete VC value at 1s～5s is
Preferably, suitably can adjust according to influence factors such as execution conditions, on-the-spot climatic environments.
The beneficial effects of the utility model:
(1) in this utility model, the sandstone in concrete layer and middle level block stone are working as of surface cleaning
Ground water power hydraulic engineering excavation block stone or cobble, excavated material substantially divide according to particle diameter 0～5mm, 5～
20mm, 20～40mm and 40～300mm, the biggest particle diameter, wherein, is rolling block stone coagulation
In soil, the sand material of 0～5mm and 5～20mm layer concrete in the mixing, 0～5mm, 5～
The sand material of 20mm, 20～40mm is used for mixing lower-layer concrete, 40～300mm the biggest grains
The sand material in footpath, for middle rockfill, makes full use of local excavated material, substantially accomplishes without rejected material, joint
Can environmental protection.
(2) function admirable of the present utility model, meets the technology requirement of superelevation rock pedestal.
Mechanical property is moderate, aquation temperature rise is little, good volume stability, shearing strength at intersection ability are strong.As
The base construction of superelevation rock, advantageously reduces dam body large deformation, reduces bulk settling, protects
Barrier structural stability and seismic seeurity, especially build a dam on deep alluvion foundation, and employing rolls
Rubble concrete new technique, is expected to break through the limitation of rock height of dam, eliminates 300m level superelevation
The technology development bottleneck of rock.
(3) this utility model can save engineering cost.Without arranging the stock ground of sandstone rejected material, sandstone
Material only needs simply to sieve, and just may utilize, the dam concrete that contrast is conventional, rolls in rubble concrete
Sand material ratio is high, cement consumption mineral admixture volume few, local is high, significantly saves material into
This；Also reduce the temperature control measures that concrete dam scheme generally uses, improve work efficiency, reduction of erection time.
(4) this utility model has wide future in engineering applications.Roll rubble concrete dam engineering to become
This is the lowest, and overall performance is good, is more suitable for the engineering construction of super-high rockfill dam, or other applicatory are built
Building structure position, is expected to popularization and application in heavy construction.
Figure of description
Fig. 1 is rock-fill dam structure schematic diagram described in the utility model；
Fig. 2 is to roll structural representation when rubble concrete layer does not rolls in this utility model；
Fig. 3 is to roll the structural representation after rubble concrete layer rolls in this utility model.
Specific embodiment
With embodiment, this utility model is further described below in conjunction with the accompanying drawings.One as shown in Figure 1
Plant the super-high rockfill dam structure being suitable for water power hydraulic engineering, it is characterised in that: described rock-fill dams include grinding
Briquetting stone concrete base 1, enrockment dam body 2 and concrete anti-seepage panel 3, described enrockment dam body 2 is adopted
With rock, described in roll rubble concrete base 1 be to be rolled rubble concrete layer by multilamellar to lead to
Cross vibroroller cmpacting formed the base that height is 90m-110m, every layer roll rubble concrete layer be by under
Layer concrete 1-1, middle level block stone 1-2 and upper layer concrete 1-3 are formed by vibroroller cmpacting, described on
The sand material of layer concrete 1-1 uses a diameter of 0～the sand of 5mm and 5～20mm that job site is dug
Building stones；The sand material of lower-layer concrete 1-3 use that job site digs a diameter of 0～5mm, 5～
The sand material of 20mm, 20～40mm；Described middle level block stone 1-2 be job site dig a diameter of
The block stone of more than 40mm or cobble.Described concrete anti-seepage panel 3 is that the block stone that rolls puzzled at heap mixes
The face slab for water retaining that solidifying soil base 1 uses concreting to be formed with enrockment dam body 2 upstream.Described every layer
The height rolling rubble concrete layer is 0.5m～1.0m.Described every layer is rolled under rubble concrete layer
Layer concrete 1-1 uses graduation two concrete, and concrete slump is at 70mm～150mm；On described
Layer concrete 1-3 uses a grating grinding coagulation soil, and concrete VC value is at 1s～5s.
In order to meet the construction demand of Hydraulic and Hydro-Power Engineering super-high rockfill dam, from material, structure and construction party
Formula angularly, proposes to roll the design concept of rubble concrete, and new to this practicality by laboratory test
Type is described further, and concrete test procedure is as follows:
(1) lower-layer concrete is poured
The mould of laboratory test is 450mm × 450mm × 450mm, concrete mixing with pour according to
DL/T5151 " concrete for hydraulic structure testing regulations " regulation is carried out, and uses the conventional former material of concrete for hydraulic structure
Material and match ratio, mixing also pours lower-layer concrete, this test raw material include cement, flyash,
Artificial sand, rubble and water reducer, air entraining agent, mixing water uses tap water, graduation two Control Measures for Concrete Slump
Degree is 110mm, pours 69.3kg altogether, thickness about 250mm；
(2) middle level enrockment
Choose the rubble that grain diameter is 80～150mm, pile up in lower-layer concrete, use altogether
79.1kg；
(3) layer concrete is poured
Concrete mixing with pour according to DL/T 5433 " water conservancy project grinding coagulation soil testing regulations " specify into
OK.Using conventional water conservancy project grinding coagulation soil material and mixing ratio, mixing also pours layer concrete,
This test raw material includes cement, flyash, artificial sand, rubble and water reducer, air entraining agent, mixes and stirs
Hydromining tap water, a grading concrete VC value is 2s, pours 38.3kg, thickness 150mm, degree altogether
About 80mm；
(4) vibroroller cmpacting
Use laboratory test vibrator, after upper layer concrete carries out vibroroller cmpacting, and demoulding hardening
Formation rolls rubble concrete.
Result shows, rolls rubble concrete gross thickness 380mm in this test, and unit weight reaches 2478kg/m3,
Even structure consolidates, and respond well, demonstrating and rolling rubble concrete structure is feasible technically.
Embodiment: use method described in the utility model to the superelevation enrockment of certain water power hydraulic engineering of constructing
Dam is tied, it is characterised in that specifically comprise the following steps that
(1) according to job specfication and the associated specifications of CFRD, this water power is processed
The dam foundation of hydraulic engineering and bank slope；Process step and require all with the process of existing rock step
Rapid and require identical；
(2) building stones that job site is excavated substantially are divided according to particle diameter 0～5mm, 5～20mm, 20～
40mm and 40～300mm, the biggest particle diameter；
(3) using raw material preparation graduation two concrete at the construction field (site), graduation two concrete uses institute
Concrete raw material in engineering: in water, cement, mineral admixture, additive and step (2)
Particle diameter is that the sand material stirring of 0～5mm, 5～20mm, 20～40mm is made, on the dam handled well
Using the graduation two concreting lower-layer concrete prepared on base, the slump of lower-layer concrete exists
70mm～150mm, thickness is 200mm-300mm；
(4) before the non-initial set of lower-layer concrete, the above block of grain diameter 40mm in selecting step (2)
Stone or cobble pile up middle level block stone in lower-layer concrete；
(5) raw material is used to prepare a grating grinding coagulation soil, a grating grinding coagulation soil at the construction field (site)
The concrete raw material of employing place engineering: water, cement, mineral admixture, additive and step
(2) in particle diameter be 0～5mm and 5～20mm sand material stirring make, treat that middle level block clitter is built
After Hao, arranged smooth after use on the block stone of middle level again prepare one grating grinding coagulation soil
Pour layer concrete, until all stone spaces of Concrete Filled middle level block stone, and exceed middle level
Block stone 100mm-200mm is high, and the VC value of upper layer concrete is at 1s～5s；
(6) after step (5) concrete spreading at the middle and upper levels, and before non-initial set, all-hydraulic list is used
Steel-wheeled vibrated roller vibroroller cmpacting on upper layer concrete, until the uniform bleeding in surface, treats upper strata coagulation
Soil solidification after formed thickness be 0.5m-1m roll rubble concrete layer, its frequency of vibration 20Hz
-40Hz, exciting force 200kN-400kN, the vibrating roller speed of travel is at 1.0km/h-1.5km/h；
(7) step (2) to (6) is repeated, it is achieved roll the construction in layer of rubble concrete base, directly
To the height of 90m-110m, formed and roll rubble concrete base；
(8) construction method using conventional concrete rock on rubble concrete base is being rolled
Continue the construction high enrockment dam body of 200-300m, enrockment dam body from upstream toward downstream be divided into bed course district,
Transition region, main rockfill area and rockfill area, downstream；
(9), after treating that the rock-fill dams body construction in step (8) completes, rubble concrete base is being rolled
With the upstream of enrockment dam body near the side substage construction concrete anti-seepage panel of water.
Claims (5)
1. the super-high rockfill dam structure being suitable for Hydraulic and Hydro-Power Engineering, it is characterised in that: described rock-fill dams
Including rolling rubble concrete base (1), enrockment dam body (2) and concrete anti-seepage panel (3), institute
Stating and rolling rubble concrete base (1) is to be rolled rubble concrete layer by multilamellar to be formed by vibroroller cmpacting
The base that height is 90m-110m, every layer roll rubble concrete layer be by lower-layer concrete (1-1),
Middle level block stone (1-2) and upper layer concrete (1-3) are formed by vibroroller cmpacting, described concrete anti-seepage
Panel (3) is that the rubble concrete base (1) that rolls puzzled at heap is adopted with enrockment dam body (2) upstream
The face slab for water retaining formed with concreting.
A kind of super-high rockfill dam structure being suitable for Hydraulic and Hydro-Power Engineering the most according to claim 1, its
It is characterised by: described every layer of height rolling rubble concrete layer is 0.5m～1.0m.
A kind of super-high rockfill dam structure being suitable for Hydraulic and Hydro-Power Engineering the most according to claim 1 and 2,
It is characterized in that: described every layer of lower-layer concrete (1-1) rolling rubble concrete layer uses graduation two
Concrete, concrete slump is at 70mm～150mm；Described upper layer concrete (1-3) uses one
Grating grinding coagulation soil, concrete VC value is at 1s～5s；Described middle level block stone (1-2) is existing for construction
The block stone of a diameter of more than 40mm that field is dug or cobble.
A kind of super-high rockfill dam structure being suitable for Hydraulic and Hydro-Power Engineering the most according to claim 1 and 2,
It is characterized in that: the sand material of described upper layer concrete (1-1) use job site to dig a diameter of 0～
The sand material of 5mm and 5～20mm；The sand material of lower-layer concrete (1-3) uses job site to dig
A diameter of 0～the sand material of 5mm, 5～20mm, 20～40mm；Described middle level block stone (1-2)
The block stone of a diameter of 40mm～300mm dug for job site or cobble.
A kind of super-high rockfill dam structure being suitable for water power hydraulic engineering the most according to claim 1 and 2,
It is characterized in that: described enrockment dam body (2) uses rock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620347156.1U CN205576857U (en) | 2016-04-22 | 2016-04-22 | Be suitable for hydraulic and hydroelectric engineering's super high enrockment dam structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620347156.1U CN205576857U (en) | 2016-04-22 | 2016-04-22 | Be suitable for hydraulic and hydroelectric engineering's super high enrockment dam structure |
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| CN201620347156.1U Expired - Fee Related CN205576857U (en) | 2016-04-22 | 2016-04-22 | Be suitable for hydraulic and hydroelectric engineering's super high enrockment dam structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780737A (en) * | 2016-04-22 | 2016-07-20 | 长江水利委员会长江科学院 | Super-high rockfill dam structure suitable for water conservancy and hydropower engineering and construction method of dam structure |
| CN110106838A (en) * | 2019-05-29 | 2019-08-09 | 中国水利水电科学研究院 | A kind of cementing dam construction method based on whole process quality control |
| CN110820696A (en) * | 2019-11-22 | 2020-02-21 | 北京金河水务建设集团有限公司 | Synchronous pouring construction method for rock-fill concrete pond dam |
| JP2020193557A (en) * | 2019-05-29 | 2020-12-03 | 中国水利水電科学研究院Ｃｈｉｎａ Ｉｎｓｔｉｔｕｔｅ ｏｆ Ｗａｔｅｒ Ｒｅｓｏｕｒｃｅｓ ａｎｄ Ｈｙｄｒｏｐｏｗｅｒ Ｒｅｓｅａｒｃｈ | Bound dam and method for constructing the same |
-
2016
- 2016-04-22 CN CN201620347156.1U patent/CN205576857U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780737A (en) * | 2016-04-22 | 2016-07-20 | 长江水利委员会长江科学院 | Super-high rockfill dam structure suitable for water conservancy and hydropower engineering and construction method of dam structure |
| CN105780737B (en) * | 2016-04-22 | 2017-10-17 | 长江水利委员会长江科学院 | A kind of super-high rockfill dam structure and its construction method for being applicable Hydraulic and Hydro-Power Engineering |
| CN110106838A (en) * | 2019-05-29 | 2019-08-09 | 中国水利水电科学研究院 | A kind of cementing dam construction method based on whole process quality control |
| US10815631B1 (en) | 2019-05-29 | 2020-10-27 | China Institute Of Water Resources And Hydropower Research | Method for cemented material dam construction based on whole-process quality control |
| JP2020193557A (en) * | 2019-05-29 | 2020-12-03 | 中国水利水電科学研究院Ｃｈｉｎａ Ｉｎｓｔｉｔｕｔｅ ｏｆ Ｗａｔｅｒ Ｒｅｓｏｕｒｃｅｓ ａｎｄ Ｈｙｄｒｏｐｏｗｅｒ Ｒｅｓｅａｒｃｈ | Bound dam and method for constructing the same |
| CN110820696A (en) * | 2019-11-22 | 2020-02-21 | 北京金河水务建设集团有限公司 | Synchronous pouring construction method for rock-fill concrete pond dam |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20180422 |