CN214766709U - Fine particle screening device for drainage body material of concrete faced rockfill dam - Google Patents
Fine particle screening device for drainage body material of concrete faced rockfill dam Download PDFInfo
- Publication number
- CN214766709U CN214766709U CN202023105358.0U CN202023105358U CN214766709U CN 214766709 U CN214766709 U CN 214766709U CN 202023105358 U CN202023105358 U CN 202023105358U CN 214766709 U CN214766709 U CN 214766709U
- Authority
- CN
- China
- Prior art keywords
- support
- fixing rod
- screen
- fine particle
- drainage body
- 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.)
- Active
Links
Images
Abstract
A support is placed on the ground, the left side of the support is backfilled with stone slag to form a stone slag backfill layer, the height of the stone slag backfill layer is flush with the upper surface of the support, a raw material transport vehicle is arranged on the upper surface of the stone slag backfill layer, a screen is arranged on the support, after screening, small-particle-size screen materials fall between the support, large-particle-size screen materials fall on the right side of the support, and large-particle-size screen materials are transported by a large-particle-size screen material transport device; the device meets the requirement of the design index of the content of the fine particles of the drainage body, and realizes the application of a new process in hydraulic engineering.
Description
Technical Field
The utility model belongs to the technical field of panel rock-fill dam building stones screening installation or device, concretely relates to fine particle sieving mechanism of panel rock-fill dam drainage body material.
Background
The dam is a concrete-faced rockfill dam, the normal water storage level of the reservoir is 635m, the dam crest elevation is 640.5m, the foundation elevation of the impervious sheet of the riverbed section is 497.0m, the maximum dam height is 143.5m, the full length of the dam crest is 591.176m, and the total filling amount of the dam body of the dam is 744.852 multiplied by 104m3Wherein the filling amount of the drainage body material is 43 ten thousand meters3. The drainage body is found in a mining blasting test that the content of fine particles of the drainage body is high, and the permeability coefficient of the drainage body is seriously influenced after rolling. The rolling test of manually selecting the drainage body materials is adopted to remove the instability of the permeability coefficient (the permeability coefficient is 2.42 multiplied by 10)-2～1.41×10-1(>1×10-1cm/s)). Still try to blast and dig the dress through adopting multiple modes such as aqueous medium blasting, grid fill in the construction, through the discovery after the rolling test, the aqueous medium blasting can not play the effect that improves drainage body particle diameter, and the grid fill limitation is big, and intensity is little, to shortcomings such as equipment loss is big. The exploitation of the drainage body becomes a bottleneck restricting dam filling, the dam filling period can be seriously prolonged, the requirement of construction progress cannot be met, and the overall project is seriously influenced.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide a reasonable in design, simple structure, save construction period and construction cost, construction quality's high fine particle sieving mechanism of panel rock-fill dam drainage body material of controllability.
The technical scheme for solving the technical problems is as follows: the support is placed on subaerial, and the left side of support adopts the slabstone to backfill and forms the slabstone backfill layer, and the height of slabstone backfill layer flushes with the upper surface of support, and the raw materials transport vechicle sets up in slabstone backfill layer upper surface, is provided with the screen cloth on the support, and the raw materials is through screening back granule footpath sieve material between the support, big granule footpath sieve material fall in the support right side, and big granule footpath sieve material is transported by big granule footpath sieve material conveyor.
The utility model discloses a support does: the left support and the right support are horizontally provided with a material containing platform, the right support is fixedly arranged on the ground through a connecting panel, a second transverse fixing rod is arranged on the inner side of the middle of the left support, a vertical fixing rod is vertically arranged at the center of the top of the left support, a first transverse fixing rod is horizontally arranged at the top end of the vertical fixing rod, one end of a screen is fixed to the first transverse fixing rod, and the other end of the screen is fixed to the top end of the right support.
The included angle between the screen and the horizontal plane of the utility model is 30-60 degrees.
The utility model discloses a left socle is the column structure of toper convergence for upper portion, and the cross sectional shape of right branch frame is the pentagon, and wherein two contained angles are the right angle, and the contained angle of one of them inclined plane and horizontal plane is the same with the contained angle of screen cloth and horizontal plane.
The utility model discloses a screen cloth does: a plurality of screen bars are perpendicularly arranged between the rear fixing rod and the front fixing rod, a middle fixing rod is arranged in the middle of each screen bar, one end of each connecting rod is connected with the corresponding second transverse fixing rod, and the other end of each connecting rod is connected with the corresponding middle fixing rod.
The utility model discloses a distance between the adjacent grating is 0.1 m.
Compared with the prior art, the utility model has the following advantages:
1. the requirement of the design index of the content of the fine particles of the drainage body is met, and the application of the novel process in hydraulic engineering is realized.
2. The requirement of large-size dam feeding of the drainage body is met, and controllability of construction quality is high.
3. The requirements of convenient and quick construction, low cost and the like are met, and the construction period and the construction cost are saved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the bracket 7 in fig. 1.
Fig. 3 is a schematic view of the structure of the screen 2 in fig. 2.
Fig. 4 is a front view of fig. 3.
In the figure: 1. a raw material transport vehicle; 2. screening a screen; 3. a connecting rod; 4. a large-particle-size screening material conveying device; 5. sieving materials with large particle size; 6. sieving materials with small particle size; 7. a support; 8. a ballast backfill layer; 2-1, fixing a rod at the back; 2-2, screen bars; 2-3, fixing a middle fixing rod; 2-4, a front fixing rod; 7-1, a left bracket; 7-2, vertical fixing rods; 7-3, a first transverse fixing rod; 7-4, a second transverse fixing rod; 7-5, a material containing platform; 7-6, a right bracket; 7-7, connecting the panel.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples, but the present invention is not limited to these examples.
Example 1
In the drawings 1-4, the utility model relates to a fine particle screening device for drainage body materials of concrete faced rockfill dam, a bracket 7 is placed on the ground, the left side of the bracket 7 is backfilled with stone slag to form a stone slag backfill layer 8, the height of the stone slag backfill layer 8 is flush with the upper surface of the bracket 7, a raw material transport vehicle 1 walks on the upper surface of the stone slag backfill layer 8 to transport raw materials, a screen 2 is arranged on the bracket 7, the bracket 7 of the embodiment is formed by connecting a left bracket 7-1, a vertical fixing rod 7-2, a first transverse fixing rod 7-3, a second transverse fixing rod 7-4, a material containing platform 7-5, a right bracket 7-6 and a connecting panel 7-7, the left bracket 7-1 and the right bracket 7-6 are horizontally welded and fixed with the material containing platform 7-5, the right bracket 7-6 is fixedly arranged on the ground through the connecting panel 7-7, a second transverse fixing rod 7-4 is fixedly welded on the inner side of the middle of a left support 7-1, a vertical fixing rod 7-2 is vertically arranged at the center of the top of the left support 7-1, a first transverse fixing rod 7-3 is fixedly welded on the top end of the vertical fixing rod 7-2, one end of a screen 2 is fixed with the first transverse fixing rod 7-3, the other end of the screen 2 is fixed with the top end of a right support 7-6, the included angle between the screen 2 and the horizontal plane is 30-60 degrees, the left support 7-1 is of a columnar structure with the upper part in conical convergence, the cross section of the right support 7-6 is in a pentagonal shape, two included angles are right angles, and the included angle between one inclined plane and the horizontal plane is the same as the included angle between the screen 2 and the horizontal plane. The screen 2 of the embodiment is formed by connecting a rear fixing rod 2-1, screen bars 2-2, a middle fixing rod 2-3 and a front fixing rod 2-4, wherein a plurality of screen bars 2-2 are vertically and fixedly arranged between the rear fixing rod 2-1 and the front fixing rod 2-4, the middle fixing rod 2-3 is arranged in the middle of each screen bar 2-2, one end of a connecting rod 3 is connected with a second transverse fixing rod 7-4, the other end of the connecting rod is connected with the middle fixing rod 2-3, and the distance between every two adjacent screen bars 2-2 is 0.1 m. The width of the screen 2 is 6m, the unloading condition of 1 raw material transport vehicle 1 is met, dam materials below 10cm are sieved by the screen bars 2-2, then the vehicle is loaded again for loading, the screen bars 2-2 are formed by welding 50 steel rails, the distance between the screen bars is 10cm, and the gradient of the screen is 44 degrees. The bracket 5 is poured with reinforced concrete to form a retaining wall, the concrete is marked as C25, the maximum height of the left bracket 7-1 is 6.0m, and the bottom width is 1.5 m. The material containing platform is 7-5 m wide by 3.5m, the screened small-particle-size sieve materials 6 with the particle size of less than 10cm fall on the material containing platform 7-5, the screened large-particle-size sieve materials 5 with the particle size of more than 10cm fall on the right side of the support 7, the screened dam materials with the particle size of less than 10cm are intensively cleaned by a loader or a hydraulic back shovel, and the large-particle-size sieve materials 5 are transported by the large-particle-size sieve material transporting device 4.
Claims (6)
1. The utility model provides a fine particle sieving mechanism of panel rock-fill dam drainage body material which characterized in that: support (7) are placed subaerial, the left side of support (7) adopts the slabstone to backfill and forms slabstone backfill layer (8), the height of slabstone backfill layer (8) flushes with the upper surface of support (7), raw materials transport vechicle (1) sets up in slabstone backfill layer (8) upper surface, be provided with screen cloth (2) on support (7), the raw materials is through screening back granule footpath sieve material (6) fall between support (7), big granule footpath sieve material (5) fall in support (7) right side, big granule footpath sieve material (5) are transported by big granule footpath sieve material conveyor (4).
2. The fine particle screening apparatus for concrete drain of concrete faced rock-fill dam as claimed in claim 1, wherein said support frame (7) is: the material containing platform (7-5) is horizontally arranged on the left support (7-1) and the right support (7-6), the right support (7-6) is fixedly arranged on the ground through a connecting panel (7-7), a second transverse fixing rod (7-4) is arranged on the inner side of the middle part of the left support (7-1), a vertical fixing rod (7-2) is vertically arranged at the center of the top of the left support (7-1), a first transverse fixing rod (7-3) is horizontally arranged at the top end of the vertical fixing rod (7-2), one end of the screen (2) is fixed with the first transverse fixing rod (7-3), and the other end of the screen is fixed with the top end of the right support (7-6).
3. The fine particle screening apparatus of concrete faced rock-fill dam drainage body material of claim 2, wherein: the included angle between the screen (2) and the horizontal plane is 30-60 degrees.
4. The fine particle screening apparatus of concrete faced rock-fill dam drainage body material of claim 3, wherein: the upper portion of the left support (7-1) is of a conical convergent columnar structure, the cross section of the right support (7-6) is pentagonal, two included angles are right angles, and the included angle between one inclined plane and the horizontal plane is the same as the included angle between the screen (2) and the horizontal plane.
5. The fine particle screening apparatus for concrete drainage of concrete faced rock-fill dams according to claim 2, wherein said screen (2) is: a plurality of screen bars (2-2) are vertically arranged between the rear fixing rod (2-1) and the front fixing rod (2-4), a middle fixing rod (2-3) is arranged in the middle of each screen bar (2-2), one end of each connecting rod (3) is connected with the second transverse fixing rod (7-4), and the other end of each connecting rod is connected with the middle fixing rod (2-3).
6. The fine particle screening apparatus of concrete faced rock-fill dam drainage body material of claim 5, wherein: the distance between the adjacent screen bars (2-2) is 0.1 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023105358.0U CN214766709U (en) | 2020-12-21 | 2020-12-21 | Fine particle screening device for drainage body material of concrete faced rockfill dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023105358.0U CN214766709U (en) | 2020-12-21 | 2020-12-21 | Fine particle screening device for drainage body material of concrete faced rockfill dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214766709U true CN214766709U (en) | 2021-11-19 |
Family
ID=78720767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023105358.0U Active CN214766709U (en) | 2020-12-21 | 2020-12-21 | Fine particle screening device for drainage body material of concrete faced rockfill dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214766709U (en) |
-
2020
- 2020-12-21 CN CN202023105358.0U patent/CN214766709U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214766709U (en) | Fine particle screening device for drainage body material of concrete faced rockfill dam | |
| CN114856694A (en) | Filling retaining wall based on integrated flexible frame and construction method | |
| CN109537597B (en) | Construction method for clearing rockfall accumulated in active flexible protection net on high and steep slope | |
| CN109882205A (en) | It is a kind of to pass through large-scale suspention backfill structure and construction method without filling solution cavity tunnel | |
| CN110130431B (en) | Water supply and drainage pipeline burying device for mud land area | |
| CN109681242B (en) | Hydraulic support forming device and method for treating roof-falling area of arch roadway | |
| CN212052857U (en) | Concrete buttress formula retaining wall structure permeates water | |
| CN212596895U (en) | Backfill filtering device | |
| CN217699992U (en) | Herringbone aggregate sieve | |
| CN211340258U (en) | Road construction waste treatment system | |
| CN210458800U (en) | Side slope screen cleaning device capable of screening garbage | |
| CN210546341U (en) | Sand and stone treatment device for pouring cement piles | |
| CN203875017U (en) | Gravelly soil material over-size stone removing device | |
| CN209538199U (en) | Slope protecting device is used in a kind of construction of ground | |
| CN218508459U (en) | U-shaped groove section enclosure structure | |
| CN207419517U (en) | Composite foundation reinforcement rockfill barrier wall structure | |
| CN216779351U (en) | Simple and easy swift grit screening loading system | |
| CN110847351A (en) | Construction method of rock-fill concrete | |
| CN220143940U (en) | Herringbone aggregate screen capable of quickly replacing screen | |
| CN206090478U (en) | Embankment dam sand bed earthquake under water liquefaction ballast reinforced structure | |
| CN217710773U (en) | Assembled gabion bank protection | |
| CN207672414U (en) | A kind of bridge | |
| CN209838476U (en) | Efficient upward layered filling dehydration system | |
| CN216688894U (en) | Roadbed filler particle size control device installed on transport vehicle | |
| CN214262637U (en) | Natural-grade sand-stone large-particle separating screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |