CN201495531U - Chute bottom plate anchor rib for spillway of dam body of reinforced concrete panel rock-fill dam of reservoir - Google Patents
Chute bottom plate anchor rib for spillway of dam body of reinforced concrete panel rock-fill dam of reservoir Download PDFInfo
- Publication number
- CN201495531U CN201495531U CN2009203060649U CN200920306064U CN201495531U CN 201495531 U CN201495531 U CN 201495531U CN 2009203060649 U CN2009203060649 U CN 2009203060649U CN 200920306064 U CN200920306064 U CN 200920306064U CN 201495531 U CN201495531 U CN 201495531U
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- anchor rib
- dam
- dam body
- spillway
- reinforced concrete
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 238000004873 anchoring Methods 0.000 claims description 25
- 239000004567 concrete Substances 0.000 claims description 20
- 238000012946 outsourcing Methods 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 21
- 238000007569 slipcasting Methods 0.000 description 9
- 239000011435 rock Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000011900 installation process Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000032798 delamination Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Abstract
The utility model relates to a chute bottom plate anchor rib for spillway of dam body of reinforced concrete panel rock-fill dam of reservoir. The anchor rib is formed by deformed steel bar, one end thereof is connected with an anchor beam arranged in the dam body, the other end thereof is connected with the steel bar in the bottom plate, the anchor rib is arranged in the dam body, and the outer side of the deformed steel bar of the anchor rib is provided with an antirust layer. The anchor rib formed by deformed steel bar has the advantages of simple structure, convenient installation, low cost and short installation period. The deformed steel bar can be well combined with peripheral structures to form resistance force.
Description
Technical field
The utility model relates to the ruggedized construction that a kind of reservoir spillway on dam body is let out trough floor, especially relates to a kind of reservoir reinforced concrete face rockfill dam spillway on dam body and lets out the trough floor anchor rib.
Background technology
Along with reaching its maturity of reservoir reinforced concrete face rockfill dam design and construction technology, the safety of rock has obtained generally acknowledging: very high degree of safety is arranged, antidetonation aspect particularly, for on the rock dam body, building whether safety of flood spillway, key is the distortion of loose rock dam, because the distortion of loose rock dam may cause the cracking of spillway on dam body, injures the normal operation of dam safety and flood spillway, based on these problems, expert both domestic and external specializes in.Dam downstream slope and adopt structure and the job practices the same with up stream slope as the rockfill on flood spillway basis can make the distortion on flood spillway basis, downstream and upstream panel basic identical; Therefore it is reliable building flood spillway on one's body at the concrete rock.Settling amount when relevant field data shows the loose rock dam body construction is less, and the settling amount of retaining phase is littler, represents relative settlement with the settling amount and the ratio of height of dam, and the general engineering construction phase all is no more than 0.5%, and the runtime only near or less than 0.1%; As build flood spillway country the earliest on dam body is Australia, base of a fruit dam, Crow (the height of dam 83m that builds up in January, 1992, the long 240m of dam crest) the wide 12.2m of spillway on dam body, maximum discharge 245m3/s (discharge per unit width 20m3/s.m), since building up flood discharge repeatedly, wherein twice flood discharge duration for 1 month, weir head 0.7m, the dam deformation at process observation flood spillway position is close with the dam deformation at upstream face place, and the flood spillway operation is normal; Domestic Xinjiang elm ditch reservoir reinforced concrete face rockfill dam has adopted the flood spillway that partly is arranged on the enrockment dam body first, and spillway on dam body adopts the open weir body, does not establish gate on the weir, and maximum flood is let out the about 21m3/s-m of discharge per unit width at present; Whole flood spillway adopts wide layout in the vertical, long 243m, and wide is 22m.Case history both domestic and external shows, to build spillway on dam body on the dam of felicity condition be safe and reliable possessing.
Common practice is in domestic and international project in the past: in order to strengthen the anchor connection of letting out groove and enrockment dam body; Let out for every section and all be provided with anchor rib on the trough floor, the anchor rib level is imbedded dam body 10m be connected to the anchoring beam, in the antirust processing of dowel, conventional way is the encased steel reinforced concrete.Its job practices is: for avoiding rolling mutual interference mutually with the dam enrockment, the type dowel is prefabricated in advance at precasting yard, and concrete is transported to the scene after reaching intensity again; Steel concrete dowel basis will be excavated in the scene, and this difficulty of construction on rockfill is bigger; Also will be connected welding with the anchoring beam, it is anticorrosion that the junction reinforcing bar waters concrete again, so just can carry out next step construction after also will waiting concrete that certain intensity is arranged.
The construction cost height of this structure, construction period is long, the installation process complexity.
Summary of the invention
The utility model mainly is to solve existing in prior technology construction cost height, construction period is long, the technical problem of installation process complexity etc. provides a kind of simple in structure, easy construction, the short reservoir reinforced concrete face rockfill dam spillway on dam body of construction period to let out the trough floor anchor rib.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of reservoir reinforced concrete face rockfill dam spillway on dam body is let out the trough floor anchor rib, it is characterized in that this anchor rib is made of screw-thread steel, the one end links to each other with anchoring beam in being located at dam body, the other end is connected with reinforcing bar in the base plate, anchor rib is located in the dam body, and the screw-thread steel outside of anchor rib is provided with antirust coat.The screw-thread steel anchor rib has simple in structure, and is easy for installation, at the bottom of the cost, and characteristics such as installation period weak point, screw-thread steel itself can be good at combining with surrounding structure, forms resistance.
As preferably, described anchor rib is made of straight section and the anchoring section that front and back link to each other, and wherein anchoring section and straight section are perpendicular, and weld mutually with the anchoring beam.Anchoring section and straight section are perpendicular just in time is provided with anchoring beam equidirectional, has made things convenient for itself and being connected of anchoring beam, and has also strengthened its firmness.
As preferably, described antirust coat by the sleeve pipe that is placed in the screw-thread steel outside and be located at sleeve pipe and screw-thread steel between cement injection constitute.It is firm that this rust-proofing method has structure, and no delamination can be strengthened the degree steady in a long-term of anchor rib.
As preferably, the two ends of described sleeve pipe are respectively equipped with grouting mouthful, are respectively equipped with the grouting auxiliary tube in the grouting mouthful.One of them grouting mouthful is used for slip casting in sleeve pipe, and another is used for when slip casting in sleeve pipe, and exhaust air has guaranteed smooth and easy and full when slip casting in sleeve pipe.
As preferably, described sleeve pipe is a 2-4 inch steel pipe.
As preferably, described antirust coat is made of 20-80cm outsourcing cement paste.
As preferably, described anchor rib straight section length is 8-20m, and the diameter of anchor rib screw-thread steel is 20-35mm.
Carry out drawing group test for the anchored force of verifying various horizontal anchor ribs, adopted four kinds of anchor rib patterns in the test altogether: (design anchored force all to require 〉=20t)
Long 10m, anchored end 50cm Outsourcing Concrete, 3 cun steel pipes of straight section overcoat, slip casting in the pipe;
Long 15m, anchored end 50cm Outsourcing Concrete, 3 cun steel pipes of straight section overcoat, slip casting in the pipe;
Long 10m, anchored end and straight section all adopt the 50cm Outsourcing Concrete;
Long 15m, anchored end and straight section all adopt the 50cm Outsourcing Concrete;
Long 10m, anchored end 50cm Outsourcing Concrete, straight section 20cm Outsourcing Concrete;
Long 10m, the clean steel muscle.
Result of the test shows:
1. when the dowel pulling capacity was 22.7t, the maximum distortion of dowel was 6mm, and the dowel breakoff phenomenon is not found at the scene.Therefore, above-mentioned four kinds of form anchor ribs all satisfy the requirement of design anchored force;
2. the dowel beam of outsourcing 50cm concrete, outsourcing 20cm concrete detects data and shows, when atmospheric temperature during at 10 ℃～18 ℃, C25 concrete field curing length of time should 〉=14d, can handling install.After prefabricated, be through lifting, transportation, in place, welding and then backfill joint concrete, the dam embankment aspect is also wanted operations such as mechanical slotting, and construction sequence is complicated, and the joint concrete such as still has to exist at strong problem;
Though 3. pure dowel anchored force meets design requirement, boulder is pounded reinforcing bar curvedly easily in the process of filling, and cause dowel displacement distortion, and antirust problem is difficult for handling;
4. the 50cm Outsourcing Concrete is adopted in the termination, and straight section is with 3 cun steel pipe outsourcings, the dowel form of slip casting in the pipe, and it is more convenient to construct, and need not after the slip casting etc. can to improve construction speed greatly by force;
Comprehensive dowel anchored force test and concrete resistance to crusing test result show: under the prerequisite that meets design requirement, guarantee programming, it is simple and convenient to construct, and the anchor rib of slip casting has satisfied these requirements in the outside steel pipe pipe.Construction is convenient than its excess-three kind form.This anchor rib pattern still belongs to the first at home and abroad in the engineering.
The beneficial effect that brings of the present utility model is, solved existing in prior technology construction cost height, construction period is long, the technical problem of installation process complexity etc., realized that reservoir reinforced concrete face rockfill dam spillway on dam body lets out that simple in structure, the easy construction of trough floor anchor rib, construction period are short, at the bottom of the cost, characteristics such as structure is firm.
Description of drawings
Accompanying drawing 1 is a kind of mounting structure schematic diagram of the present utility model;
Accompanying drawing 2 is a kind of structural representations of the present utility model;
Accompanying drawing 3 is a kind of structural representations of the present utility model;
Accompanying drawing 4 is a kind of structural representations of the present utility model.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: accompanying drawing 1 is a kind of mounting structure schematic diagram of the present utility model; Accompanying drawing 2 is a kind of structural representations of the present utility model; Accompanying drawing 3 is a kind of structural representations of the present utility model.The utility model is that a kind of reservoir reinforced concrete face rockfill dam spillway on dam body is let out the trough floor anchor rib, it is characterized in that this anchor rib is made of screw-thread steel 1, the one end links to each other with anchoring beam 5 in being located at dam body, the pre-buried iron phase welding of the other end and base plate 4 downsides, anchor rib is made of straight section and the anchoring section that front and back link to each other, anchor rib straight section length is 8-20m, and the diameter of anchor rib screw-thread steel is 20-35mm.Wherein anchoring section and straight section are perpendicular, and weld mutually with the anchoring beam.Anchor rib is located in the dam body.The straight section antirust coat by the sleeve pipe 6 that is placed in the screw-thread steel outside and be located at sleeve pipe and screw-thread steel between cement injection 2 constitute, sleeve pipe is a 2-4 inch steel pipe, the two ends of sleeve pipe are respectively equipped with grouting mouthful, are respectively equipped with grouting auxiliary tube 3 in the grouting mouthful.
The screw-thread steel anchor rib has simple in structure, and is easy for installation, at the bottom of the cost, and characteristics such as installation period weak point, screw-thread steel itself can be good at combining with surrounding structure, forms resistance.Anchoring section and straight section are perpendicular just in time is provided with anchoring beam equidirectional, has made things convenient for itself and being connected of anchoring beam, and has also strengthened its firmness.The sleeve pipe in the screw-thread steel outside and be located at sleeve pipe and screw-thread steel between mixed earth slip casting constitute, the anchoring section antirust coat is made of 30-80cm bag concrete.It is firm that this rust-proofing method has structure, and no delamination can be strengthened the degree of adding of anchor rib.
Embodiment 2: accompanying drawing 4 is a kind of structural representations of the present utility model.The utility model is that a kind of reservoir reinforced concrete face rockfill dam spillway on dam body is let out the trough floor anchor rib, it is characterized in that this anchor rib is made of screw-thread steel 1, the one end links to each other with anchoring beam 5 in being located at dam body, the pre-buried iron phase welding of the other end and base plate 4 downsides, anchor rib is made of straight section and the anchoring section that front and back link to each other, anchor rib straight section length is 8-20m, and the diameter of anchor rib screw-thread steel is 20-35mm.Wherein anchoring section and straight section are perpendicular, and weld mutually with the anchoring beam.Anchor rib is located in the dam body.Antirust coat is made of 20-80cm bag cement paste 7.
The anti-rust structure of the anchor rib of present embodiment is more simple, and cost is lower, but its rust-proof effect and stability and unaffected.
So the utlity model has that simple in structure, easy construction, construction period are short, at the bottom of the cost, the feature such as stabilized structure.
Claims (9)
1. a reservoir reinforced concrete face rockfill dam spillway on dam body is let out the trough floor anchor rib, it is characterized in that this anchor rib is made of screw-thread steel (1), the one end anchoring beam (5) interior with being located at dam body links to each other, the pre-buried iron phase welding of the other end and base plate (4) downside, anchor rib is located in the dam body, and the screw-thread steel outside of anchor rib is provided with antirust coat.
2. reservoir reinforced concrete face rockfill dam spillway on dam body according to claim 1 is let out the trough floor anchor rib, it is characterized in that described anchor rib is made of straight section and the anchoring section that front and back link to each other, wherein anchoring section and straight section are perpendicular, and establish with anchoring beam concrete structure in.
3. reservoir reinforced concrete face rockfill dam spillway on dam body according to claim 2 is let out the trough floor anchor rib, it is characterized in that described antirust coat by the sleeve pipe (6) that is placed in the screw-thread steel outside and be located at sleeve pipe and screw-thread steel between cement injection (2) constitute.
4. reservoir reinforced concrete face rockfill dam spillway on dam body according to claim 3 is let out the trough floor anchor rib, it is characterized in that the two ends of described sleeve pipe are respectively equipped with the grouting mouth, is respectively equipped with grouting auxiliary tube (3) on the grouting mouth.
5. let out the trough floor anchor rib according to claim 3 or 4 described reservoir reinforced concrete face rockfill dam spillway on dam body, it is characterized in that described sleeve pipe is a 2-4 inch steel pipe.
6. reservoir reinforced concrete face rockfill dam spillway on dam body according to claim 1 and 2 is let out the trough floor anchor rib, it is characterized in that described antirust coat is made of 20-80cm outsourcing cement paste (7).
7. let out the trough floor anchor rib according to claim 1 or 2 or 3 or 4 described reservoir reinforced concrete face rockfill dam spillway on dam body, it is characterized in that described anchor rib straight section length is 8-20m, the diameter of anchor rib screw-thread steel is 20-35mm.
8. reservoir reinforced concrete face rockfill dam spillway on dam body according to claim 5 is let out the trough floor anchor rib, it is characterized in that described anchor rib straight section length is 8-20m, and the diameter of anchor rib screw-thread steel is 20-35mm.
9. reservoir reinforced concrete face rockfill dam spillway on dam body according to claim 6 is let out the trough floor anchor rib, it is characterized in that described anchor rib straight section length is 8-20m, and the diameter of anchor rib screw-thread steel is 20-35mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203060649U CN201495531U (en) | 2009-07-13 | 2009-07-13 | Chute bottom plate anchor rib for spillway of dam body of reinforced concrete panel rock-fill dam of reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203060649U CN201495531U (en) | 2009-07-13 | 2009-07-13 | Chute bottom plate anchor rib for spillway of dam body of reinforced concrete panel rock-fill dam of reservoir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201495531U true CN201495531U (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203060649U Expired - Lifetime CN201495531U (en) | 2009-07-13 | 2009-07-13 | Chute bottom plate anchor rib for spillway of dam body of reinforced concrete panel rock-fill dam of reservoir |
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| Country | Link |
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| CN (1) | CN201495531U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179750A (en) * | 2017-12-29 | 2018-06-19 | 合肥工业大学 | A kind of ruggedized construction of dam spillway |
| CN114032850A (en) * | 2021-11-05 | 2022-02-11 | 中水珠江规划勘测设计有限公司 | Anti-sliding anchoring structure of spillway at top of rock-fill dam and construction method of anti-sliding anchoring structure |
-
2009
- 2009-07-13 CN CN2009203060649U patent/CN201495531U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179750A (en) * | 2017-12-29 | 2018-06-19 | 合肥工业大学 | A kind of ruggedized construction of dam spillway |
| CN114032850A (en) * | 2021-11-05 | 2022-02-11 | 中水珠江规划勘测设计有限公司 | Anti-sliding anchoring structure of spillway at top of rock-fill dam and construction method of anti-sliding anchoring structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: EAST TONGBAI PUMPED STORAGE POWER GENERATION CO., LTD. Effective date: 20121116 Owner name: STATE GRID XINYUAN CO., LTD. EAST TONGBAI PUMPED S Effective date: 20121116 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 317200 TAIZHOU, ZHEJIANG PROVINCE TO: 100761 DONGCHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121116 Address after: 100761 West Chang'an Avenue, Beijing, No. 86 Patentee after: State Grid Corporation of China Patentee after: State Grid Xinyuan Co., Ltd. Patentee after: East Tongbai Pumped Storage Power Generation Co., Ltd. Address before: Pumped Storage Power Generation Co. Ltd. Tongbailing 317200 Zhejiang Tiantai Jiao Cun Tongbai pumped Patentee before: East Tongbai Pumped Storage Power Generation Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100602 |