CN106337425A - Precast concrete drainage structure in dam body of rock-fill dam and construction method - Google Patents
Precast concrete drainage structure in dam body of rock-fill dam and construction method Download PDFInfo
- Publication number
- CN106337425A CN106337425A CN201610789709.3A CN201610789709A CN106337425A CN 106337425 A CN106337425 A CN 106337425A CN 201610789709 A CN201610789709 A CN 201610789709A CN 106337425 A CN106337425 A CN 106337425A
- Authority
- CN
- China
- Prior art keywords
- precast concrete
- dam
- displacement hull
- drainage
- rockfill dam
- 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
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/06—Earth-fill dams; Rock-fill dams
Abstract
The invention relates to the technical field of dam engineering, in particular to a precast concrete drainage structure in a dam body of a rock-fill dam. The drainage structure comprises a precast concrete drainage body horizontally arranged in the dam body of the rock-fill dam; the dam body of the rock-fill dam is provided with a seepage line formed due to leakage of the dam body, and the precast concrete drainage body is located below the seepage line of the dam body; the precast concrete drainage body is of a hollow reinforced concrete thin-wall structure and is formed by connecting a plurality of precast drainage body blocks, the hollow portion of the thin-wall structure is a drainage gallery, the hollow reinforced concrete thin-wall structure is provided with drainage holes penetrating the interior and the exterior of the hollow reinforced concrete thin-wall structure; and the drainage holes are communicated with the drainage gallery. According to the precast concrete drainage structure in the dam body of the rock-fill dam, the precast concrete drainage body is adopted in the dam body of the concrete face rock-fill dam and is internally provided with the drainage holes and the drainage gallery, the drainage holes are used for draining accumulated water in the dam body, and the accumulated water is gathered in the drainage gallery and is drained out of the dam body through the drainage gallery; and the precast concrete drainage structure in the dam body of the rock-fill dam is simple, practical, economic and reliable in drainage effect.
Description
Technical field
The present invention relates to dam construction technique field, more particularly to a kind of Rockfill Dam inside precast concrete draining knot
Structure.
Background technology
Rock-fill dams are filled through layered rolling using bulk solid stockpile and form, including CFRD and core-wall
Rock-fill dams dam shell area, for ensureing the osmotic stability of dam body stockpile, reduces the saturation in dam body, for the heap of bad hydraulic permeability
Building stones are general to remove the stockpile after fine grained as displacement hull material using setting in dam body.In infiltration current long term
Under, often occur the fine grained in stockpile to run off, or be stranded in displacement hull, have a strong impact on the drainage effect of displacement hull so that
Dam seepage line is raised, and cannot overhaul, and has a strong impact on safety of dam body.Therefore, for solving the drainage problem in above-mentioned dam body, this
Invention proposes a kind of dam body internal drainage precast concrete displacement hull structure overhauled.
Content of the invention
The technical problem to be solved is to overcome existing dam seepage line higher, and cannot overhaul, seriously
The defect of impact safety of dam body, provides a kind of Rockfill Dam internal precast concrete discharge structure.
For realizing above-mentioned technical purpose, the present invention adopts the following technical scheme that and is achieved:
A kind of internal precast concrete discharge structure of Rockfill Dam, including prefabricated in the horizontally disposed body in Rockfill Dam
Concrete displacement hull；Described Rockfill Dam has the saturation being formed due to embankment seepage, described precast concrete displacement hull
Positioned at this dam seepage line with lower portion；Described precast concrete displacement hull is the reinforced concrete thin-walled structure of hollow, by many
Individual prefabricated displacement hull block is formed by connecting, and the hollow space of described thin-wall construction is collector drain, and this thin-wall construction is provided with and runs through
Its inside and outside osculum, described osculum connects described collector drain.
Preferably, described precast concrete displacement hull section configuration is circular, polygon or gateway opening shape.
Preferably, the central angle between adjacent described osculum is 45 °.
Preferably, described draining in the hole fills filter protector, and described filter protector includes geotextiles, and bag
It is rolled in the elastomeric material composition in geotextiles.
Preferably, described elastomeric material is sponge or draining blind pipe.
Preferably, described filter protector with diameter greater than or be equal to osculum diameter.
Preferably, it is provided with preset slot between adjacent described prefabricated displacement hull block, be filled with filtration in described preset slot and protect
Protection unit or wrap up in outward rustless steel steel wire.
Preferably, the width 1cm～2cm of described preset slot.
Preferably, over current protection is set between the periphery of described precast concrete displacement hull and the stockpile of Rockfill Dam
Material.
Another object of the present invention, provides a kind of Rockfill Dam internal precast concrete discharge structure construction method, bag
Include following steps: first, the precasting yard beyond Rockfill Dam makes precast concrete displacement hull；Secondly, laying is prefabricated mixed
The over current protection material of solidifying soil displacement hull bottom, and grinding compacting；Precast concrete displacement hull is transported to Rockfill Dam and fills storehouse
Face, is then carried out with crane installing splicing, the filling simultaneously carrying out filter protector at osculum and preset slot is installed；Splicing
After the completion of carry out the layering laying of precast concrete displacement hull both sides over current protection material and stockpile, roll；Then, carry out prefabricated
The over current protection material layering at concrete displacement hull top is laid and is rolled；The over current protection material at precast concrete displacement hull top grinds
Pressure finishes the construction completing discharge structure.
Beneficial effects of the present invention:
The present invention adopts precast concrete displacement hull inside rock dam body, sets in precast concrete draining body
Put osculum and collector drain, osculum is used for discharging the hydrops in dam body, and comes together in collector drain, is discharged by collector drain
Dam body；Simply, practical, economical, drainage effect is reliable, with low cost, easy construction, convenient maintenance, it is possible to decrease dam body internal water
Position, the dam body seepage failure preventing fine grained in dam embankment material to run off and causing.
Brief description
Fig. 1 is the precast concrete displacement hull structure arrangement schematic diagram of the CFRD of the present invention.
Fig. 2 is the precast concrete displacement hull structure arrangement schematic diagram of the core wall rockfill dam of the present invention.
Fig. 3 is the schematic diagram for polygonized structure for the transverse section of the precast concrete displacement hull structure of the present invention.
Fig. 4 is the schematic diagram of the transverse section gateway opening shape structure of precast concrete displacement hull structure of the present invention.
Fig. 5 is the schematic diagram of the transverse section circular configuration of precast concrete displacement hull structure of the present invention.
Fig. 6 is the schematic diagram of the longitudinal plane structure of precast concrete displacement hull structure of the present invention.
Fig. 7 is the filter protector section structure schematic diagram of the draining in the hole of the present invention.
Fig. 8 is the filter protector section structure schematic diagram between the adjacent prefabricated displacement hull block of the present invention.
In figure: 1- Rockfill Dam；2- precast concrete displacement hull；3- prefabricated displacement hull block；4- osculum；5- draining corridor
Road；6- filter protector；7- geotextiles；8- elastomeric material；9- preset slot；10- over current protection material；11- upstream rockfill area；
12- downstream rockfill area.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings:
Embodiment 1
In order to overcome in prior art, drainage in dam body is smooth, saturation is higher, and cannot overhaul, and has a strong impact on safety of dam body
Defect, present embodiments provide a kind of internal precast concrete discharge structure of Rockfill Dam as shown in Figure 1-2, it includes
The horizontally disposed precast concrete displacement hull 2 in Rockfill Dam 1；Described Rockfill Dam 1 is had and is formed due to embankment seepage
Saturation, described precast concrete displacement hull 2 is located at this dam seepage line with lower portion；Described precast concrete displacement hull 2 is
The reinforced concrete thin-walled structure of hollow, is formed by connecting by multiple prefabricated displacement hull blocks 3；The hollow space of described thin-wall construction is
Collector drain 5, the reinforced concrete thin-walled structure of this hollow is provided with and runs through its inside and outside osculum 4；Described osculum 4 connects
Described collector drain 5.
Wherein, the curve being formed for steady seepage face in Rockfill Dam 1 cross section of described dam seepage line.
The present invention adopts precast concrete displacement hull 2 inside Rockfill Dam 1, sets in precast concrete displacement hull 2
Put osculum 4 and collector drain 5, described osculum 4 is used for discharging the hydrops in Rockfill Dam 1, and hydrops come together in described row
Water gallery 5, discharges dam body by collector drain 5.
This precast concrete displacement hull 2 has the advantage that
1st, described precast concrete displacement hull 2 belongs to rigid structure, when described Rockfill Dam 1 is constructed, compacting machinary,
Do not produce compression under runtime top dam body load and water ballast(ing) effect, dam deformation is not affected.
2nd, it is compressive stress inside this Rockfill Dam 1, because Reinforced Concrete Materials has enough comprcssive strength, no
Crushing or pressure break phenomenon can occur.
3rd, described precast concrete displacement hull 2 non-corroding, good endurance.
4th, described precast concrete displacement hull 2 adopts prefabricated place to make, and is transported to storehouse face and installs, speed of application is fast, construction
Convenient, cost-effective.
5th, described precast concrete displacement hull 2 good water permeability, anti-scour, scouring capability are strong.
6th, described collector drain 5 serves many purposes, and cannot be only used for draining, is also available for the observation of runtime dam body and overhauls
Use.
Embodiment 2
On the basis of embodiment 1, as shown in Fig. 3 is to 5, described precast concrete displacement hull 2 section configuration is circular, many
Side shape or gateway opening shape.Design circular and polygon, stress condition is good.It is designed to gateway opening shape, space layout is good, favorably
Overhaul construction in the later stage.
Described precast concrete displacement hull 2 external diameter is 200cm～400cm, if external diameter is more than 400cm, leads to prefabricated mixed
Solidifying soil displacement hull 2 weight is big, and scene transport or lifting are difficult, and construction is inconvenient；If external diameter is less than 200cm, concrete
Native displacement hull 2 internal drainage gallery 5 spaces are little, and the later stage makes an inspection tour and maintenance is inconvenient, therefore selects external diameter 200cm～400cm, so
Not only on-site hoisting requirement can be met, and described collector drain 5 space can meet the later stage and check that making an inspection tour traffic constructs with maintenance
Require.
The internal diameter of described collector drain 5 is 100cm～200cm, and internal diameter can meet later stage inspection in the range of this to be maked an inspection tour
Traffic and maintenance construction requirement.
The concrete thickness of described precast concrete displacement hull 2 is 20cm～100cm, and this thickness range can in arrangement of reinforcement
Meet precast concrete displacement hull 2 self-strength requirement it is ensured that will not be subject to crushing.
The length of described precast concrete displacement hull 2 is 100cm～200cm, and this length range can control and controls each
The weight of precast concrete displacement hull 2 at 30 tons about, in order to lifting and transporting.
Embodiment 3
On the basis of embodiment 1, as shown in Figures 3 to 5, described in each prefabricated displacement hull block 3 middle part can be provided with
Osculum 4, the central angle a between adjacent row water hole 4 is 45 °, central angle a design at 45 ° so that described precast concrete draining
Osculum 4 on body 2 transverse section is uniformly arranged, and drainage effect is good.
The aperture of described osculum 4 is 10cm～20cm, and this pore diameter range can meet drainage requirement, have row good enough
Outlet capacity, will not reduce structural strength.
Filling filter protector 6 in described osculum 4, described filter protector 6 is to the fine grained energy in stockpile
Play preferably protective effect, the later stage can overhaul replacing.
As shown in fig. 7, described filter protector 6 includes geotextiles 7, and it is wrapped in the elastomeric material 8 in geotextiles 7
Composition.Described elastomeric material 8 can select sponge or draining blind pipe etc..Draining blind pipe mainly with synthetic fibers, plastics and
Synthetic rubber etc. is made up through different processes of raw material.
The diameter with diameter greater than osculum 4 of described filter protector 6, prevents filter protector 6 from described draining
Come off in hole 4, after described filter protector 6 compression, fill in osculum 4, rely on the elasticity of sponge and hole wall to compress, will not slide
Fall.Specifically, a diameter of 12cm～22cm of described filter protector 6,2cm bigger than the diameter of osculum 4.
Embodiment 4
On the basis of embodiment 1, as shown in fig. 6, being provided with preset slot 9, in advance between adjacent described prefabricated displacement hull block 3
Stay the width 1cm～2cm of seam 9, reserve this width, draining can be also served as, also make there is certain change between each prefabricated displacement hull block 3
Shape space, more preferable adaptive deformation.
It is filled with filter protector 6 in described preset slot 9 or wrap up in outward rustless steel steel wire.Described filter protector 6
Consistent with filter protector 6 material therefor mentioned in embodiment 3, shape is as shown in Figure 8.
Multiple prefabricated displacement hull blocks 3 are equivalently-sized, and so-called equivalently-sized, that is, its length is identical, cross dimension also phase
Same, be so conducive to block prefabricated, size difference precasting process is complicated.
When dam body occurs differential settlement deformation, because precast concrete displacement hull 2 is by equivalently-sized prefabricated row
Water body block 3 is spliced, and by flexible sponge filling between described prefabricated displacement hull block 3, is suitable for deforming, can even if destroying the later stage
Repair, the strong adaptability to dam deformation.
Embodiment 5
On the basis of embodiment 1, as depicted in figs. 1 and 2, the periphery of precast concrete displacement hull 2 and dam body stockpile
Between arrange over current protection material 10, also referred to as filter material (definition of filter material can be found in specification dl/t 8,395 2007), transition
Preservative 10 runs off in order to prevent the fine grained in the stockpile of Rockfill Dam 1.
Described over current protection material 10 is made up of the bulk solid cohesiveless soil meeting waterpower code requirement, over current protection material 10
Thickness 300cm～400cm.
The level of described over current protection material 10 joins needs continuously, and level is joined the continuous filter protection that just can play and acted on, and otherwise can produce
Raw seepage failure.Maximum particle diameter is less than or equal to 300mm, and the granule content less than 5mm 20%～50%, is less than
The granule content of 0.075mm is less than or equal to 5%, the strength of raw rock requirement of described over current protection material 10, layer thickness, rolls time
Number, amount of water, control porosity etc. are identical with periphery stockpile.
Embodiment 6
On the basis of embodiment 1, as shown in figure 1, described precast concrete displacement hull 2 is made using concrete.Coagulation
Configuration reinforcement in soil.Using the compactive effort of strength grade of concrete visual rockfill compacting machinary and the dam body on displacement hull top
The factor such as thickness and displacement hull concrete thickness determines, can choose in the range of c25～c40.
Described precast concrete displacement hull 2 inside dam body can arranging multiplayer, the mainly concrete condition cloth according to each engineering
Put the number of plies (as the position of saturation, height of dam, dam width etc.).When the saturation of dam body is higher, along dam body elevation direction arranging multiplayer
(or a plurality of with elevation arrangement) displacement hull.
Embodiment 7
On the basis of embodiment 1, the precast concrete displacement hull 2 of the present invention is applied to core wall rockfill dam dough-making powder sheetpile stone
Dam engineering.It is core wall rockfill dam or rock that the present invention mentions rock-fill dams.
Wherein, when rock-fill dams are for rock, as shown in figure 1, rock is included by upstream toward downstream successively
Upstream rockfill area 11 and downstream rockfill area 12, described precast concrete displacement hull 2 horizontally disposed in upstream rockfill area 11 and downstream
Rockfill area 12.
Wherein, core wall rockfill dam can be containing native core wall rockfill dam or Colophonium core wall rockfill dam.As shown in Fig. 2 Fig. 2 shows
Go out the precast concrete displacement hull 2 structure arrangement schematic diagram of core wall rockfill dam.Described core wall rockfill dam includes upstream shell material
Area 11 and downstream dam shell material area 12, described precast concrete displacement hull 2 horizontally disposed in downstream dam shell material area 12.
Embodiment 8
In order to overcome in prior art, drainage in dam body is smooth, saturation is higher, and cannot overhaul, and has a strong impact on safety of dam body
Defect, the invention provides a kind of internal precast concrete discharge structure construction method of Rockfill Dam, comprise the following steps:
First, the precasting yard beyond dam body makes precast concrete displacement hull 2；Secondly, lay precast concrete draining
The over current protection material of body 2 bottom, and grinding compacting；Precast concrete displacement hull 2 is transported to Rockfill Dam and fills storehouse face, then
Carried out with crane splicing is installed, the filling simultaneously carrying out filter protector 6 at osculum 4 and preset slot 9 is installed；Splicing completes
Carry out precast concrete displacement hull 2 both sides over current protection material 10 afterwards and the layering of stockpile is laid, rolled；Then, carry out prefabricated
Over current protection material 10 layering at concrete displacement hull 2 top is laid and is rolled；The over current protection at precast concrete displacement hull 2 top
Material 10 rolls and finishes the construction carrying out dam body stockpile by dam embankment requirement.
Wherein, in above-mentioned steps, described making precast concrete displacement hull 2 making step: model sheetinstallat, reinforcing bar system
Peace, concreting and maintenance, form removal, precast concrete displacement hull 2 completes.
Wherein, roll and need to be rolled using smaller tremors during over current protection material, big vibrating roller compactive effort is larger, ground using smaller tremors
Prevent the displacement hull being installed in place from moving or dislocate；And rolling of precast concrete displacement hull 2 both sides should be entered simultaneously
OK, both sides carry out preventing displacement hull from moving or dislocate simultaneously.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to including these changes and modification.
Claims (10)
1. a kind of internal precast concrete discharge structure of Rockfill Dam it is characterised in that: include horizontally disposed in Rockfill Dam
Precast concrete displacement hull (2) in body (1)；Described Rockfill Dam (1) has the saturation being formed due to embankment seepage, institute
State precast concrete displacement hull (2) and be located at this dam seepage line with lower portion；Described precast concrete displacement hull (2) is hollow
Reinforced concrete thin-walled structure, is formed by connecting by multiple prefabricated displacement hull blocks (3), and the hollow space of described thin-wall construction is draining
Gallery (5), this thin-wall construction is provided with and runs through its inside and outside osculum (4), and described osculum (4) connects described collector drain
(5).
2. the internal precast concrete discharge structure of Rockfill Dam according to claim 1 it is characterised in that: described prefabricated
Concrete displacement hull (2) section configuration is circular, polygon or gateway opening shape.
3. the internal precast concrete discharge structure of Rockfill Dam according to claim 1 it is characterised in that: adjacent institute
The central angle (a) stated between osculum (4) is 45 °.
4. the internal precast concrete discharge structure of Rockfill Dam according to claim 1 it is characterised in that: described draining
Filling filter protector (6) in hole (4), described filter protector (6) includes geotextiles (7), and is wrapped in geotextiles
(7) elastomeric material (8) composition in.
5. the internal precast concrete discharge structure of Rockfill Dam according to claim 4 it is characterised in that: described elasticity
Material (8) is sponge or draining blind pipe.
6. the internal precast concrete discharge structure of Rockfill Dam according to claim 4 it is characterised in that: described filtration
Protection device (6) with diameter greater than or be equal to osculum (4) diameter.
7. the internal precast concrete discharge structure of Rockfill Dam according to claim 1 it is characterised in that: adjacent institute
State and between prefabricated displacement hull block (3), be provided with preset slot (9), in described preset slot (9), be filled with filter protector (6) or outer
Wrap up in rustless steel steel wire.
8. the internal precast concrete discharge structure of Rockfill Dam according to claim 7 it is characterised in that: described reserved
Width 1cm～the 2cm of seam (9).
9. the internal precast concrete discharge structure of Rockfill Dam according to claim 1 it is characterised in that: described prefabricated
Setting over current protection material (10) between the stockpile of the periphery of concrete displacement hull (2) and Rockfill Dam (1).
10. a kind of internal precast concrete discharge structure construction method of Rockfill Dam it is characterised in that: comprise the following steps:
First, the precasting yard beyond Rockfill Dam (1) makes precast concrete displacement hull (2)；Secondly, laying precast concrete row
The over current protection material (10) of water body (2) bottom, and grinding compacting；Precast concrete displacement hull (2) is transported to Rockfill Dam (1)
Fill storehouse face, then carried out with crane splicing is installed, carry out osculum (4) and preset slot (9) place filter protector (6) simultaneously
Filling install；Carry out the layering of precast concrete displacement hull (2) both sides over current protection material (10) and stockpile after the completion of splicing
Lay, roll；Then, carry out over current protection material (10) the layering laying at precast concrete displacement hull (2) top and roll；Prefabricated
The over current protection material (10) at concrete displacement hull (2) top rolls and finishes the construction completing discharge structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610789709.3A CN106337425B (en) | 2016-08-31 | 2016-08-31 | Precast concrete discharge structure and construction method inside a kind of Rockfill Dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610789709.3A CN106337425B (en) | 2016-08-31 | 2016-08-31 | Precast concrete discharge structure and construction method inside a kind of Rockfill Dam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106337425A true CN106337425A (en) | 2017-01-18 |
| CN106337425B CN106337425B (en) | 2018-11-13 |
Family
ID=57822392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610789709.3A Active CN106337425B (en) | 2016-08-31 | 2016-08-31 | Precast concrete discharge structure and construction method inside a kind of Rockfill Dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106337425B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203821347U (en) * | 2014-05-08 | 2014-09-10 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Reinforced concrete prefabricated gallery structure of roller compacted concrete dam |
| CN204199246U (en) * | 2014-10-08 | 2015-03-11 | 中国电建集团贵阳勘测设计研究院有限公司 | One rolls rock-fill concrete gravity dam structure |
| CN204982789U (en) * | 2015-05-13 | 2016-01-20 | 中国电建集团华东勘测设计研究院有限公司 | A dam body prevention of seepage drainage system for roller compacted concrete dam |
| CN205444127U (en) * | 2016-03-31 | 2016-08-10 | 中国电建集团华东勘测设计研究院有限公司 | Novel vertical drainage body structure of homogeneous earth dam |
-
2016
- 2016-08-31 CN CN201610789709.3A patent/CN106337425B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203821347U (en) * | 2014-05-08 | 2014-09-10 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Reinforced concrete prefabricated gallery structure of roller compacted concrete dam |
| CN204199246U (en) * | 2014-10-08 | 2015-03-11 | 中国电建集团贵阳勘测设计研究院有限公司 | One rolls rock-fill concrete gravity dam structure |
| CN204982789U (en) * | 2015-05-13 | 2016-01-20 | 中国电建集团华东勘测设计研究院有限公司 | A dam body prevention of seepage drainage system for roller compacted concrete dam |
| CN205444127U (en) * | 2016-03-31 | 2016-08-10 | 中国电建集团华东勘测设计研究院有限公司 | Novel vertical drainage body structure of homogeneous earth dam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106337425B (en) | 2018-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101718086B (en) | Concrete-enrockment mixed dam and construction method thereof | |
| CN101581088B (en) | Construction method for filling mortar combined stone dam | |
| CN104060631B (en) | A kind of manhole mouth elevation Dynamic controlling structure | |
| CN210315102U (en) | Slope protection reinforced roadbed structure of composite ecological decoration panel | |
| CN102041845A (en) | United draining system for effectively lowering seepage lines in fill dam of tailing reservoir | |
| CN109797769B (en) | Collapsible loess area underground comprehensive pipe gallery foundation structure and construction method thereof | |
| CN204715302U (en) | Quasi-triple gradation Compacted Concrete Gravity Dam Section | |
| CN110847124A (en) | Concrete panel rock-fill dam with multiple anti-seepage structures and construction method thereof | |
| CN111593742A (en) | Construction method for rectifying and improving tailing pond based on rubble silt squeezing method | |
| CN108301440A (en) | With waterproof, the underground pipe gallery construction method of drain function | |
| CN212052626U (en) | Concrete panel rock-fill dam with multiple anti-seepage structure | |
| CN108000699A (en) | A kind of urban water-through type storm sewer and its preparation process | |
| CN106758559B (en) | A kind of construction method of high-speed railway silt, flour sand embankment structure | |
| CN106337425A (en) | Precast concrete drainage structure in dam body of rock-fill dam and construction method | |
| CN111676951A (en) | Construction method for treating shallow soft soil layer by combining stone throwing, silt squeezing and sand bag well treatment | |
| CN110747819A (en) | Concrete face rockfill dam with geotextile layer between bedding material and transition material | |
| CN103046516B (en) | Method for filling bottom of gravelly soil core wall of stone dam | |
| RU2377363C1 (en) | Soil non-homogenuous fill dam | |
| CN211228563U (en) | Assembled groundwater drainage blind ditch drainage system that oozes | |
| CN109629592B (en) | Manufacturing method of ground logistics transportation pipeline | |
| CN210368867U (en) | Superimposed structure of homogeneity earth dam and rock-fill dam | |
| CN104631425B (en) | A kind of flyash of accelerating arranges the method oozing consolidation | |
| CN203782862U (en) | Window type draining well | |
| CN203270515U (en) | Full tailing hydraulic reclamation split film yarn woven geofabriform piled dam | |
| CN111379251A (en) | Controllable rigid pile and compacted gravel pile combined composite foundation and construction method thereof |
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 |