CN203307776U - Concrete face rock fill dam toe board structure - Google Patents
Concrete face rock fill dam toe board structure Download PDFInfo
- Publication number
- CN203307776U CN203307776U CN201320324159XU CN201320324159U CN203307776U CN 203307776 U CN203307776 U CN 203307776U CN 201320324159X U CN201320324159X U CN 201320324159XU CN 201320324159 U CN201320324159 U CN 201320324159U CN 203307776 U CN203307776 U CN 203307776U
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- concrete
- toe board
- concrete face
- fill dam
- face rock
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Abstract
The utility model relates to a concrete face rock fill dam toe board structure. The utility model aims at providing a concrete face rock fill dam toe board structure with a simple structure, convenience in construction and applicability in strong unloading, decreasing the construction difficulty, ensuring the seepage-proofing capability of a dam, and providing repair conditions when the seepage-proofing capability is reduced. The technical scheme of the concrete face rock fill dam toe board structure is that a concrete toe board is connected to the upstream end of a concrete face rock fill dam; the concrete face rock fill dam toe board structure is characterized in that a grouting gallery is arranged in the concrete toe board; a grouting purdah is arranged at the bottom of the grouting gallery; the downstream end of the concrete toe board is connected to a concrete seepage-proofing plate arranged below the concrete face rock fill dam; the lower foundations of the concrete toe board and the concrete seepage-proofing plate are subjected to consolidation grouting processing. The concrete face rock fill dam toe board structure is suitable for water resources and hydropower engineering.
Description
Technical field
The utility model relates to a kind of Concrete Face Rockfill Dam toe board structure.Be applicable to Hydraulic and Hydro-Power Engineering.
Background technology
In Hydraulic and Hydro-Power Engineering, affected by deep grade the in river valley, the section bank slope off-load of subregion is grown very much, and its strong Unloading Rock level is grown and is reached tens of rice rice even up to a hundred.Generally, more shallow if strong off-load is grown, the mode that the Face Rockfill Dam basis can take to excavate strong Unloading Rock is substantially processed, but when strong off-load growth is darker, all excavate difficulty larger, and heavy excavation will cause large-scale high slope problem, construction investment is large.
Summary of the invention
The technical problems to be solved in the utility model is: for the problem of above-mentioned existence, a kind of simple in structure, easy construction is provided, the Concrete Face Rockfill Dam toe board structure that adapts to strong off-load, be intended to reduce difficulty of construction, guarantee the seepage capability of dam, and can when seepage capability descends, possess the condition of reparation.
The technical scheme that the utility model adopts is: a kind of Concrete Face Rockfill Dam toe board structure, at the Concrete Face Rockfill Dam upstream extremity, connect the concrete toe board, it is characterized in that: in described concrete toe board, irrigation gallery is set, the irrigation gallery bottom is provided with grouted cut off wall, and concrete toe board downstream connects the concrete anti-seepage plate that is positioned at the Concrete Face Rockfill Dam below; Process through consolidation grouting on described concrete toe board and basis, concrete anti-seepage plate bottom.
Described concrete anti-seepage plate length is half of Concrete Face Rockfill Dam height of dam.
Described concrete anti-seepage plate top covers filter material and Transition Materials.
The beneficial effects of the utility model are: the utility model is simple in structure, easy construction, and the irrigation gallery in the concrete toe board carries out basic curtain grouting, has both guaranteed grouting effect, has also avoided the interference of grouting construction and the construction of other operations; After grouted cut off wall is moving the several years, bearing for a long time under the high water head action condition, particularly under the condition of rock mass fracture growth, the curtain body more or less there will be local destruction or the decline of seepage capability, now, can utilize the interior gallery of concrete toe board to carry out the reinforcing of curtain.
The concrete anti-seepage plate in the utility model concrete toe board downstream plays the effect that extends seepage paths, in the situation that curtain lost efficacy, the infiltration gradient on toe board and barrier sheet basis is dropped to below 2, thereby reduce the possibility of seepage failure, further guarantee the safe and reliable of engineering.
The accompanying drawing explanation
Fig. 1 is the structural representation of embodiment.
The specific embodiment
As shown in Figure 1, the present embodiment is a kind of Concrete Face Rockfill Dam toe board structure be arranged on strong off-load basis, Concrete Face Rockfill Dam 8 bases are grown deep strong Unloading Rock 7 are arranged, Concrete Face Rockfill Dam 8 upstream extremities connect concrete toe board 3, within concrete toe board 3 bases are seated in strong Unloading Rock 7, toe board inside is provided with irrigation gallery 1, and irrigation gallery 1 bottom is provided with grouted cut off wall 2.Concrete toe board 3 downstreams connect concrete anti-seepage plate 4(and are positioned at Concrete Face Rockfill Dam 8 belows), concrete anti-seepage plate 4 length are 1/2nd rock height of dam, barrier sheet top covers filter material and Transition Materials.Process through consolidation grouting on concrete toe board 3 and concrete anti-seepage plate 4 bases, bottom.
The concrete construction method of the present embodiment is as follows:
1, excavation Concrete Face Rockfill Dam 8 bases;
2, carry out the concreting of irrigation gallery 1;
3, concreting toe board 3 and concrete anti-seepage plate 4;
4, the consolidation grouting that carries out irrigation gallery 1 and 4 times bases of concrete anti-seepage plate is processed;
5, on concrete anti-seepage plate 4, fill filter material and Transition Materials;
6, carry out the construction of rock dam body;
7, utilize irrigation gallery 1 to carry out the construction of grouted cut off wall 2.
By abovementioned technology, can utilize safely and reliably strong Unloading Rock as the dam plinth foundation, make Foundation Anti-seepage meet the demands, and possessed the condition that curtain is repaired.The problems such as high slope problem that heavy excavation causes and construction investment be large have been avoided; also avoided strong Unloading Rock grouting treatment effect or durability relative mistake and caused existing the problem of engineering safety hidden danger; all favourable to engineering safety and environmental protection, also effectively reduced the investment of engineering simultaneously.
Claims (3)
1. Concrete Face Rockfill Dam toe board structure, at Concrete Face Rockfill Dam (8) upstream extremity, connect concrete toe board (3), it is characterized in that: irrigation gallery (1) is set in described concrete toe board (3), irrigation gallery (1) bottom is provided with grouted cut off wall (2), and concrete toe board (3) downstream connects the concrete anti-seepage plate (4) that is positioned at Concrete Face Rockfill Dam (8) below; Process through consolidation grouting on described concrete toe board (3) and concrete anti-seepage plate (4) basis, bottom.
2. Concrete Face Rockfill Dam toe board structure according to claim 1, it is characterized in that: described concrete anti-seepage plate (4) length is half of Concrete Face Rockfill Dam (8) height of dam.
3. Concrete Face Rockfill Dam toe board structure according to claim 1 and 2, is characterized in that: described concrete anti-seepage plate (4) top covering filter material and Transition Materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320324159XU CN203307776U (en) | 2013-06-06 | 2013-06-06 | Concrete face rock fill dam toe board structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320324159XU CN203307776U (en) | 2013-06-06 | 2013-06-06 | Concrete face rock fill dam toe board structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203307776U true CN203307776U (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320324159XU Expired - Fee Related CN203307776U (en) | 2013-06-06 | 2013-06-06 | Concrete face rock fill dam toe board structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203307776U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480903A (en) * | 2014-12-12 | 2015-04-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Panel joint structure for concrete panel rockfill dam and construction method of panel joint structure |
| CN105155472A (en) * | 2015-10-09 | 2015-12-16 | 中国电建集团成都勘测设计研究院有限公司 | Dam foundation anti-seepage structure of deep overlying layer earth-rock dam and construction method of dam foundation anti-seepage structure |
| CN105484204A (en) * | 2015-12-31 | 2016-04-13 | 长江勘测规划设计研究有限责任公司 | Stone masonry dam or concrete dam sealing anti-seepage reinforcement structure and construction method thereof |
| CN105735205A (en) * | 2016-03-04 | 2016-07-06 | 中国电建集团华东勘测设计研究院有限公司 | Horizontal construction joint dislocation repairing method for concrete panel |
-
2013
- 2013-06-06 CN CN201320324159XU patent/CN203307776U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480903A (en) * | 2014-12-12 | 2015-04-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Panel joint structure for concrete panel rockfill dam and construction method of panel joint structure |
| CN104480903B (en) * | 2014-12-12 | 2016-07-06 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of Face Slab of Concrete-faced Rockfill parting structure and construction method thereof |
| CN105155472A (en) * | 2015-10-09 | 2015-12-16 | 中国电建集团成都勘测设计研究院有限公司 | Dam foundation anti-seepage structure of deep overlying layer earth-rock dam and construction method of dam foundation anti-seepage structure |
| CN105155472B (en) * | 2015-10-09 | 2017-04-26 | 中国电建集团成都勘测设计研究院有限公司 | Dam foundation anti-seepage structure of deep overlying layer earth-rock dam and construction method of dam foundation anti-seepage structure |
| CN105484204A (en) * | 2015-12-31 | 2016-04-13 | 长江勘测规划设计研究有限责任公司 | Stone masonry dam or concrete dam sealing anti-seepage reinforcement structure and construction method thereof |
| CN105735205A (en) * | 2016-03-04 | 2016-07-06 | 中国电建集团华东勘测设计研究院有限公司 | Horizontal construction joint dislocation repairing method for concrete panel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |