CN110185000A - Panel waterproof bedding structure for superelevation face dam - Google Patents
Panel waterproof bedding structure for superelevation face dam Download PDFInfo
- Publication number
- CN110185000A CN110185000A CN201910465254.3A CN201910465254A CN110185000A CN 110185000 A CN110185000 A CN 110185000A CN 201910465254 A CN201910465254 A CN 201910465254A CN 110185000 A CN110185000 A CN 110185000A
- Authority
- CN
- China
- Prior art keywords
- bedding
- area
- layer
- waterproof
- panel
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Revetment (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention provides a kind of panel waterproof bedding structure for superelevation face dam, is additionally provided with bedding area on the surface of the position of concrete slab lower section, is equipped with ballast area on bedding area；The bedding area is divided into two layers from top to bottom, and one layer is gravel blanket layer, and another floor is flyash bedding area and mountain flour bedding area.By using above-mentioned scheme, bedding setting combines auxiliary seepage proof object to have for setting, takes full advantage of the characteristic of bedding material, the auxiliary seepage proof effect of bedding is more reliable.The mountain flour material for taking full advantage of deep narrow river valley deep covering layer digging in-situ, is greatly decreased flyash transportation cost.Bedding area and ballast area combine the elevation range of the stress-deformation characteristic setting bedding of panel more scientific and reasonable.The waterproof layer of setting can greatly improve the service life of concrete slab.
Description
Technical field
The present invention relates to the rock-fill dam structure field of hydraulic and hydroelectric engineering, especially a kind of panel for superelevation face dam
Waterproof bedding structure.
Background technique
Concrete face rockfill dam has easy for construction, smaller, the general short time limit of climate influence, and project cost is relatively low
The advantages that, it is to develop more rapid novel rock-fill dams in hydraulic and hydroelectric engineering in recent years.As the acceleration of construction of hydropower facilities is sent out
Exhibition, face dam build the increase of height of dam degree, river valley landform also usual relatively narrower, panel bedding generally by silt, Extra-fine sand, flyash or
Other materials is covered on panel and periphery fissure, and the specific aim of this single bedding silting effect is not strong and construction organization is inadequate
Flexibly.
Such as the note in a kind of upstream apron structure of concrete face rockfill dam of Chinese patent document CN203080480U
It carries, has poured concrete slab in rock upstream face, which has built concrete toe board, and feature exists
In: it is close to concrete slab base and builds panel saddle weight, the panel saddle weight is the straw bag of built-in silt, the straw bag that straw bag is built
Silt bedding is covered above heap to design section, and rock ballast mask is covered on silt bedding.The present invention is suitable for hydraulic and hydroelectric engineering.
Tradition setting range is generally laid with by panel bottom to 1/2 height of dam section, and non-system considers in panel operational process
Stress-deformation characteristic, it is understood that there may be laid with range be greater than actual requirement, it is uneconomical.Furthermore, it is possible in a phase panel parting position
It sets and is also provided with bedding, the maintenance being not easy in operational process.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of panel waterproof bedding structure for superelevation face dam, energy
It enough gathers materials on the spot, reduces laid down cost, improve the anti-seepage effect of bedding.In the preferred scheme, the stress of panel can be met
Deformation characteristic.Convenient for parting maintenance.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of panel for superelevation face dam
Waterproof bedding structure is additionally provided with bedding area on the surface of the position of concrete slab lower section, is equipped with ballast area on bedding area；
The bedding area is divided into two layers from top to bottom, and one layer is gravel blanket layer, and another floor is flyash bedding area and mountain flour
Bedding area.
In preferred scheme, the flyash bedding area is located at close to the position of concrete slab bottom, mountain flour bedding
Area is located at close to concrete slab, and flyash bedding area and mountain flour bedding area interconnect.
In preferred scheme, the gravel material gradation of gravel blanket layer need to meet self-healing and auxiliary seepage proof functional requirement；Gravel
The gravel material of bedding layer uses the excavated material of mud Lip river accumulation body, and gravel material infiltration coefficient is not more than 1 × 10-5Cm/s is greater than 5mm
Grain content is not more than 50%, should be greater than 15% less than 0.075mm granule content, maximum particle diameter is not more than 100mm.
In preferred scheme, ballast area is that the ballast Gai Chongti being covered in bedding area is prevented with protecting gravel blanket layer
Gravelly soil bedding unstability and particulate are lost；The ballast in ballast area is excavated to abandon to be cut using nodal region and be filled, and ballast maximum particle diameter is little
In 600mm, Air Voids are not more than 24%.
In preferred scheme, waterproof layer is equipped between bedding area and concrete slab.
In preferred scheme, the waterproof layer is polyurethane water-proof layer；
Or the waterproof layer is modified Nano organic silicon waterproof layer, modified Nano organic silicon waterproof layer is sprayed on coagulation
The surface of native panel is also wrapped on mortar on the surface of modified Nano organic silicon waterproof layer.
In preferred scheme, the waterproof layer is polyurethane water-proof layer in the lower section of concrete slab, and upper section is to be modified
Nano-organosilicon class waterproof layer, modified Nano organic silicon waterproof layer are sprayed on the surface of concrete slab, have in modified Nano
The surface of machine silicon class waterproof layer is also wrapped on mortar；
Wherein polyurethane water-proof layer is located under lowest water level line, modified Nano organic silicon waterproof layer be located at lowest water level line it
Upper includes falling zone and exposed panel surface.
Polyurethane water-proof layer and modified Nano organic silicon waterproof layer overlap.
In preferred scheme, the polyurethane water-proof layer is multilayer, and bottom is flexibility, is used in conjunction with concrete, in
Layer hardness is higher than bottom, is used for waterproof, and top layer is anti-ageing and corrosion-resistant layer.
In preferred scheme, the modified Nano organic silicon waterproof layer component includes remembering by weight: high boiling-point silicon
2 ~ 3 parts of sodium alkoxide, 4 ~ 5 parts of organic-inorganic hybrid nanometer resin, 1 ~ 3 part of nanometer grade silica colloidal sol, super-hydrophobic silica
0.1 ~ 0.6 part, 0.5 ~ 1 part of isopropanol, 0.1 ~ 0.3 part of polyvinyl alcohol, 0.01 ~ 0.2 part of antiager.
In preferred scheme, the top in bedding area and ballast area is lower than a phase parting of concrete slab.
A kind of panel waterproof bedding structure for superelevation face dam provided by the invention, by using above-mentioned scheme,
Compared with prior art have it is below the utility model has the advantages that
1, bedding setting combines auxiliary seepage proof object to have for setting, takes full advantage of the characteristic of bedding material, and the auxiliary of bedding is anti-
It is more reliable to seep effect.
2, it by the setting compound bedding structure of panel, chooses bedding material more flexible, the construction item at scene can be better conformed to
Part.The mountain flour material for taking full advantage of deep narrow river valley deep covering layer digging in-situ, is greatly decreased flyash transportation cost.
3, bedding material can make full use of construction waste and engineering excavation material, economic, environmental protection.
4, bedding area and ballast area combine the elevation range of the stress-deformation characteristic setting bedding of panel more scientific and reasonable.
5, the waterproof layer being arranged, can protect concrete slab, further increase anti-seepage effect
6, bedding is arranged in concrete slab one phase parting position hereinafter, overhauling convenient for parting.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is upstream-downstream diagrammatic cross-section of the invention.
Fig. 2 is the schematic front view of river valley landform in the present invention.
Fig. 3 is the partial cutaway schematic of middle berth cover region and ballast zone position of the present invention.
In figure: bedding area 1, gravel blanket layer 11, flyash bedding area 12, mountain flour bedding area 13, waterproof layer 14, ballast area
2, concrete slab 3, slope protection 4, transition region 5, rockfill area 6, a phase parting 7.
Specific embodiment
In Narrow Valleys landform in the present invention, the ratio between dam body width B and height are 1:1.13, and road arrangement is difficult.And
And thicker Muddy Bottoms coating is covered in river valley, bosom reaches 85 meters.Dam body maximum height reaches more than 220 meters.It applies
Work difficulty is high.
In Fig. 1 ~ 3, a kind of panel waterproof bedding structure for superelevation face dam, in the position of 3 lower section of concrete slab
The surface set is additionally provided with bedding area 1, is equipped with ballast area 2 on bedding area 1；
The bedding area 1 is divided into two layers from top to bottom, and one layer is gravel blanket layer 11, and another floor is 12 He of flyash bedding area
Mountain flour bedding area 13.Wherein the flyash and mountain flour in flyash bedding area 12 and mountain flour bedding area 13 are split in concrete slab
When seam, it is able to enter into crack and forms closure.Flyash bedding area 12 and mountain flour bedding area 13 with a thickness of 0.5 ~ 1
Rice, gravel blanket layer 11 with a thickness of 3-5 meter, gravel blanket layer 11 is used to push down flyash and mountain flour, prevents by current scour
And it is lost.
In preferred scheme, the flyash bedding area 12 is located at close to the position of 3 bottom of concrete slab, mountain flour paving
Cover region 13 is located at close to concrete slab 3, and flyash bedding area 12 and mountain flour bedding area 13 interconnect.Mountain flour is opened using foundation pit
Mountain flour after being sieved in the clay silt obtained during digging.
In preferred scheme, the gravel material gradation of gravel blanket layer 11 need to meet self-healing and auxiliary seepage proof functional requirement；Gravel
The gravel material of stone bedding layer 11 uses the excavated material of mud Lip river accumulation body, and gravel material infiltration coefficient is not more than 1 × 10-5Cm/s is greater than
5mm granule content is not more than 50%, should be greater than 15% less than 0.075mm granule content, maximum particle diameter is not more than 100mm.
In preferred scheme, ballast area 2 is the ballast Gai Chongti being covered in bedding area 1, to protect gravel blanket layer 11,
Gravelly soil bedding unstability and particulate is prevented to be lost；The ballast in ballast area 2 is excavated to abandon to be cut using nodal region and be filled, ballast maximum particle diameter
No more than 600mm, Air Voids are not more than 24%.
In preferred scheme, waterproof layer 14 is equipped between bedding area 1 and concrete slab 8.
In preferred scheme, the waterproof layer 14 is polyurethane water-proof layer；
Or the waterproof layer 14 is modified Nano organic silicon waterproof layer, modified Nano organic silicon waterproof layer is sprayed on mixed
The surface of solidifying soil panel 3, is also wrapped on mortar on the surface of modified Nano organic silicon waterproof layer.
In another preferred scheme such as Fig. 3, the waterproof layer 14 is polyurethane water-proof in the lower section of concrete slab 3
Layer, upper section are modified Nano organic silicon waterproof layer, and modified Nano organic silicon waterproof layer is sprayed on the table of concrete slab 3
Face is also wrapped on mortar on the surface of modified Nano organic silicon waterproof layer；It is organic to modified Nano that mortar can be avoided water flow
Silicon class waterproof layer directly washes away.
Wherein polyurethane water-proof layer is located under lowest water level line, and modified Nano organic silicon waterproof layer is located at lowest water level
It include falling zone and exposed panel surface on line.Thus scheme, since the temperature under water level line is more constant, using poly- ammonia
Ester waterproof layer effect is preferable, and the especially position of falling zone on lowest water level line, difference variation are larger, using modified Nano
Organic silicon waterproof layer, ageing resistance, anti-deformation are preferable, can, avoid aqueous vapor from being deposited in interface and in cold and hot friendship
Acid corrosion concrete is generated for effect is lower, extends the service life of concrete slab 8.Polyurethane water-proof layer has with modified Nano
Machine silicon class waterproof layer overlap joint.
In preferred scheme, the polyurethane water-proof layer is multilayer, and bottom is flexibility, is used in conjunction with concrete, in
Layer hardness is higher than bottom, is used for waterproof, and top layer is anti-ageing and corrosion-resistant layer.Thus multilayered structure, bottom flexible polyurethane energy
It enough penetrates into concrete slab 3, combines closely with concrete, play waterproof, fill out leakage and the effect of attachment.Middle layer polyurethane is then
For providing elasticity and connection interlayer structure.Top layer is then mainly used for uvioresistant, anti-aging and offer corrosion resistance.It is logical
Multilayered structure is crossed, the service life of polyurethane water-proof layer is substantially extended.Wherein flexible polyurethane, elastic polyurethane and anti-aging poly-
Urethane is commercially available product.
In preferred scheme, the modified Nano organic silicon waterproof layer component includes remembering by weight: high boiling-point silicon
2 ~ 3 parts of sodium alkoxide, 4 ~ 5 parts of organic-inorganic hybrid nanometer resin, 1 ~ 3 part of nanometer grade silica colloidal sol, super-hydrophobic silica
0.1 ~ 0.6 part, 0.5 ~ 1 part of isopropanol, 0.1 ~ 0.3 part of polyvinyl alcohol, 0.01 ~ 0.2 part of antiager.Thus structure, nano-silica
SiClx constitutes microcosmic three-dimensional structure, while providing waterproof effect, also provides permeability.Especially changing in the present invention
Property nano-organosilicon class waterproof layer be water material, using direct spraying, the then arrangement and method for construction of sprayed surface mortar, after
It is very convenient after repairing and maintenance.
As shown in figure 1, the top in bedding area 1 and ballast area 2 is lower than a phase parting 7 of concrete slab 3 to preferred scheme.By
This structure is safeguarded convenient for the parting in later period.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as limitation of the invention, this hair
The technical characteristic of bright middle record can be combined with each other use under the premise of not conflicting, and protection scope of the present invention should be with right
It is required that record technical solution, including claim record technical solution in technical characteristic equivalents be protection model
It encloses.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.
Claims (10)
1. a kind of panel waterproof bedding structure for superelevation face dam, it is characterized in that: in the position of concrete slab (3) lower section
Surface be additionally provided with bedding area (1), on bedding area (1) be equipped with ballast area (2)；
The bedding area (1) is divided into two layers from top to bottom, and one layer is gravel blanket layer (11), and another floor is flyash bedding area
(12) and mountain flour bedding area (13).
2. a kind of panel waterproof bedding structure for superelevation face dam according to claim 1, it is characterized in that: described
Flyash bedding area (12) is located at close to the position of concrete slab (3) bottom, and mountain flour bedding area (13) is located at close to concrete
Panel (3), flyash bedding area (12) and mountain flour bedding area (13) interconnect.
3. a kind of panel waterproof bedding structure for superelevation face dam according to claim 1, it is characterized in that: gravel is spread
The gravel material gradation of cap rock (11) need to meet self-healing and auxiliary seepage proof functional requirement；The gravel material of gravel blanket layer (11) uses mud
The excavated material of Lip river accumulation body, gravel material infiltration coefficient are not more than 1 × 10-5Cm/s is greater than 5mm granule content and is not more than 50%, is less than
0.075mm granule content should be greater than 15%, and maximum particle diameter is not more than 100mm.
4. a kind of panel waterproof bedding structure for superelevation face dam according to claim 1, it is characterized in that: ballast area
(2) be the ballast Gai Chongti that is covered on bedding area (1), to protect gravel blanket layer (11), prevent gravelly soil bedding unstability and
Particulate is lost；The ballast in ballast area (2) is excavated to abandon to be cut using nodal region and be filled, and ballast maximum particle diameter is not more than 600mm, after compacting
Porosity is not more than 24%.
5. a kind of panel waterproof bedding structure for superelevation face dam according to claim 1, it is characterized in that: bedding area
(1) waterproof layer (14) are equipped between concrete slab (8).
6. a kind of panel waterproof bedding structure for superelevation face dam according to claim 5, it is characterized in that: described
Waterproof layer (14) is polyurethane water-proof layer；
Or the waterproof layer (14) is modified Nano organic silicon waterproof layer, modified Nano organic silicon waterproof layer is sprayed on
The surface of concrete slab (3) is also wrapped on mortar on the surface of modified Nano organic silicon waterproof layer.
7. a kind of panel waterproof bedding structure for superelevation face dam according to claim 5, it is characterized in that: described
Waterproof layer (14) is polyurethane water-proof layer in the lower section of concrete slab (3), and upper section is modified Nano organic silicon waterproof layer, is changed
Property nano-organosilicon class waterproof layer is sprayed on the surface of concrete slab (3), on the surface of modified Nano organic silicon waterproof layer
It is also wrapped on mortar；
Wherein polyurethane water-proof layer is located under lowest water level line, modified Nano organic silicon waterproof layer be located at lowest water level line it
Upper includes falling zone and exposed panel surface；
Polyurethane water-proof layer and modified Nano organic silicon waterproof layer overlap.
8. a kind of panel waterproof bedding structure for superelevation face dam according to claim 6 or 7, it is characterized in that: institute
The polyurethane water-proof layer stated is multilayer, and bottom is flexibility, is used in conjunction with concrete, and middle layer hardness is higher than bottom, is used for waterproof,
Top layer is anti-ageing and corrosion-resistant layer.
9. a kind of panel waterproof bedding structure for superelevation face dam according to claim 6 or 7, it is characterized in that: institute
The modified Nano organic silicon waterproof layer component stated includes remembering by weight: 2 ~ 3 parts of high boiling Sodium silanolate, organic inorganic hybridization are received
Rice 4 ~ 5 parts of resin, 1 ~ 3 part of nanometer grade silica colloidal sol, 0.1 ~ 0.6 part of super-hydrophobic silica, 0.5 ~ 1 part of isopropanol,
0.1 ~ 0.3 part of polyvinyl alcohol, 0.01 ~ 0.2 part of antiager.
10. a kind of panel waterproof bedding structure for superelevation face dam according to claim 1, it is characterized in that: bedding
The top of area (1) and ballast area (2) is lower than a phase parting (7) of concrete slab (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465254.3A CN110185000B (en) | 2019-05-30 | 2019-05-30 | Panel waterproof covering structure for ultrahigh panel dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465254.3A CN110185000B (en) | 2019-05-30 | 2019-05-30 | Panel waterproof covering structure for ultrahigh panel dam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110185000A true CN110185000A (en) | 2019-08-30 |
| CN110185000B CN110185000B (en) | 2020-09-15 |
Family
ID=67719103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910465254.3A Active CN110185000B (en) | 2019-05-30 | 2019-05-30 | Panel waterproof covering structure for ultrahigh panel dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110185000B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074355A (en) * | 2006-05-17 | 2007-11-21 | 苏笮斌 | Cement-based penetrant crystalline waterproof material and its production |
| CN106626597A (en) * | 2016-12-05 | 2017-05-10 | 张维满 | Pressure-resistant fireproof plate and manufacturing method thereof |
-
2019
- 2019-05-30 CN CN201910465254.3A patent/CN110185000B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074355A (en) * | 2006-05-17 | 2007-11-21 | 苏笮斌 | Cement-based penetrant crystalline waterproof material and its production |
| CN106626597A (en) * | 2016-12-05 | 2017-05-10 | 张维满 | Pressure-resistant fireproof plate and manufacturing method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 万赟等: "单组份聚氨酯防水涂料性能研究及在猴子岩水电站的应用", 《猴子岩水电站大坝坝坡及坝体分区设计》 * |
| 张光磊: "《新型建筑材料 第2版》", 31 January 2014 * |
| 索慧敏等: "猴子岩水电站大坝坝坡及坝体分区设计", 《四川水力发电》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110185000B (en) | 2020-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103643656A (en) | High rock-fill dam membrane anti-seepage body on deep coverage layer and construction method of high rock-fill dam membrane anti-seepage body | |
| CN101298782A (en) | Method and system for basement engineering water proof and water drain | |
| CN102926574B (en) | Seepage-proofing method of underwater reservoir and underwater reservoir with seepage-proofing function | |
| CN201087334Y (en) | Reservoir bottom and dam body integrated anti-seepage structure | |
| CN205368926U (en) | Garden way supercrust structure that water permeability is strong | |
| CN106368176B (en) | The high dam structure being built on earth material scarcity area deeply covered layer | |
| CN207228298U (en) | A kind of landscape drought small stream structure | |
| CN110747819A (en) | Concrete face rockfill dam with geotextile layer between bedding material and transition material | |
| CN106245595A (en) | A kind of antiseepage wall bottom maintainable face dam of seepage control system | |
| CN212001199U (en) | Cofferdam retaining and protecting structure for coastal soft soil hydraulic reclamation land reclamation | |
| CN206128097U (en) | Steel cylinder formula precipitation well seals utensil | |
| CN110185000A (en) | Panel waterproof bedding structure for superelevation face dam | |
| CN111305240A (en) | Cofferdam retaining and protecting structure for coastal soft soil hydraulic reclamation and construction method thereof | |
| CN207143849U (en) | A kind of man-made lake polycrystalline substance for improving water body self-purification ability | |
| CN110424338A (en) | The section partitioned organization of concrete face rockfill dam | |
| CN206800314U (en) | Rubble-mound foundation gravity type quay | |
| CN105239534A (en) | Connecting structure for dam foundation gallery and dam body core wall | |
| CN210315427U (en) | Waterproof structure of super high concrete face plate dam face plate | |
| CN110185006A (en) | Narrow Valleys landform high CFRD | |
| CN106277687A (en) | The installation method of stem pressing glass reinforced plastics anaerobic tank | |
| CN208563267U (en) | A kind of earth and rockfill dam pressure slope body discharge structure | |
| CN206157755U (en) | Carry on anti - seepage prevention of dam foundation system of straining structure of double -deck level in deep overburden high dam | |
| CN207567719U (en) | The dykes and dams that a kind of gangue dead meal fills | |
| CN203096696U (en) | High and low composite backwater weir | |
| CN206916688U (en) | A kind of new rammed earth retaining wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200821 Address after: The North Qingyang District of Chengdu City, Sichuan Province, No. 1 610072 Applicant after: China Power Construction Group Chengdu Survey and Design Research Institute Co.,Ltd. Address before: 443002 No. 54 Dongshan Avenue, Xiling District, Hubei, Yichang Applicant before: CHINA GEZHOUBA GROUP FIRST ENGINEERING Co.,Ltd. Applicant before: China Power Construction Group Chengdu Survey and Design Research Institute Co.,Ltd. Applicant before: GUODIAN DADU RIVER HOUZIYAN HYDROPOWER CONSTRUCTION Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |