CN108301384A - Asphaltic concrete core wall and dam foundation concrete watertight wall joint structure - Google Patents
Asphaltic concrete core wall and dam foundation concrete watertight wall joint structure Download PDFInfo
- Publication number
- CN108301384A CN108301384A CN201810321773.8A CN201810321773A CN108301384A CN 108301384 A CN108301384 A CN 108301384A CN 201810321773 A CN201810321773 A CN 201810321773A CN 108301384 A CN108301384 A CN 108301384A
- Authority
- CN
- China
- Prior art keywords
- dam foundation
- concrete
- wall
- asphaltic
- core wall
- 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.)
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Links
- 239000004567 concrete Substances 0.000 title claims abstract description 121
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 20
- 230000007704 transition Effects 0.000 claims description 23
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 230000015271 coagulation Effects 0.000 claims description 4
- 238000005345 coagulation Methods 0.000 claims description 4
- 238000007596 consolidation process Methods 0.000 claims description 4
- 239000011440 grout Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 4
- 230000002262 irrigation Effects 0.000 claims description 3
- 238000003973 irrigation Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000011384 asphalt concrete Substances 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 2
- 101100008046 Caenorhabditis elegans cut-2 gene Proteins 0.000 description 11
- 239000010426 asphalt Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/40—Foundations for dams across valleys or for dam constructions
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
Abstract
The present invention relates to water conservancy and hydropower earth and rockfill dam construction applications, especially one kind being effectively improved rockfill dam with asphalt concrete core dam foundation impervious wall stress deformation defect, to increase substantially the asphaltic concrete core wall and dam foundation concrete watertight wall joint structure of dam body seepage performance, including asphaltic concrete core wall and dam foundation concrete cut, the asphaltic concrete core wall and dam foundation concrete cut are staggeredly arranged along flow flow direction, wherein asphaltic concrete core wall is set to the Upstream section of flow, dam foundation concrete cut is set to the tract of flow, it is connected by flexible bituminous concrete between the asphaltic concrete core wall and dam foundation concrete cut.Structure of the invention rationally, reliably, can improve the whole seepage capability of enrockment dam body, while also having the advantages of simple in structure, easy construction.Among water power earth and rockfill dam structure construction structure.
Description
Technical field
The present invention relates to water conservancy and hydropower earth and rockfill dam construction applications, especially a kind of asphaltic concrete core wall and dam foundation concrete
Cut-pff wall joint structure.
Background technology
Soil-core-wall rock-fill dam is a kind of home and abroad water conservancy and the widely used dam type of hydroelectric project, on deep covering layer
Rockfill dam with asphalt concrete core generally use the pattern directly docked with dam foundation impervious wall of asphaltic concrete core wall.In reality
In use, since the gravity load of this asphaltic concrete core wall directly acts on dam foundation concrete cut, keep the dam foundation mixed
Solidifying soil cut-pff wall stress deformation outstanding problem, as height of dam increases, dam foundation concrete cut stress also increases, mixed until exceeding
The strength grade requirement of solidifying soil cut-pff wall, to make the height of dam for building rockfill dam with asphalt concrete core on coating be limited
System.When on the ultra-deep thick-covering based on engineering is located at fine grained, dam foundation sedimentation and deformation problem is more prominent, and the dam foundation is uneven
Even deformation and dam foundation cumulative settling is big, rockfill dam with asphalt concrete core dam body and dam foundation deformation and stress are complicated, cut-pff wall is answered
Power deformation protrudes.Currently, there is no preferable solution to the problems described above.
Invention content
Technical problem to be solved by the invention is to provide one kind, to be effectively improved the rockfill dam with asphalt concrete core dam foundation anti-
Wall stress deformation defect is oozed, to increase substantially the asphaltic concrete core wall and dam foundation concrete cut of dam body seepage performance
Joint structure.
The technical solution adopted by the present invention to solve the technical problems is:Asphaltic concrete core wall and dam foundation concrete anti-seepage
Wall joint structure, including asphaltic concrete core wall and dam foundation concrete cut, the asphaltic concrete core wall and dam foundation coagulation
Native cut-pff wall is staggeredly arranged along flow flow direction, and wherein asphaltic concrete core wall is set to the Upstream section of flow, dam foundation coagulation
Native cut-pff wall is set to the tract of flow, is dripped by flexibility between the asphaltic concrete core wall and dam foundation concrete cut
Green concrete connection.
Further, the bottom of the asphaltic concrete core wall is equipped with the concrete mats holder structure of built-in irrigation gallery.
Further, the pedestal of the asphaltic concrete core wall is provided at least one grout hole.
Further, the upstream side of the asphaltic concrete core wall is provided with upstream transition layer structure.
Further, the upstream side of the upstream transition layer structure is provided with rockfill area.
Further, the downstream side of the dam foundation concrete cut is provided with downstream transition layer structure.
Further, the downstream side of the downstream transition layer structure is provided with rockfill area.
Further, the downstream side of the downstream transition layer structure is provided with anti-filter drainage blanket structure.
Further, the basis instrument between the upstream transition layer structure and downstream transition layer structure has consolidation grouting
Structure.
Further, cushion layer structure is provided with below the flexibility bituminous concrete, setting below the cushion layer structure
Having can material filling layer.
The beneficial effects of the invention are as follows:The present invention combines actual space layout feature, cleverly by the bituminous concrete heart
Wall is staggeredly arranged with dam foundation concrete cut, to solve the deformation of asphaltic concrete core wall and dam foundation concrete cut
With the stress outstanding problem of stress combination superposition.It is mixed with the dam foundation that increased flexibility bituminous concrete solves asphaltic concrete core wall
The inhomogeneous deformation problem of solidifying soil cut-pff wall.Wherein, due to the present invention structure advantage, allow above-mentioned concrete pedestal it is big
It is small to be adjusted as the case may be, solve traditional asphalt pedestal stress outstanding problem.Structure of the invention is reasonable, reliable,
The whole seepage capability of enrockment dam body can be improved, while also having the advantages of simple in structure, easy construction.The present invention is especially suitable
Among water power earth and rockfill dam structure construction structure.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
In figure label for:Asphaltic concrete core wall 1, dam foundation concrete cut 2, flexible bituminous concrete 3, rockfill area 4,
Upstream transition layer structure 5, downstream transition layer structure 6, cushion layer structure 7, anti-filter drainage blanket structure 8, consolidation grouting structure 9, coagulation
Native base structure 11, grout hole 12, can material filling layer 13.
Specific implementation mode
The following further describes the present invention with reference to the drawings.
Asphaltic concrete core wall as shown in Figure 1 and dam foundation concrete watertight wall joint structure, including the bituminous concrete heart
Wall 1 and dam foundation concrete cut 2, the asphaltic concrete core wall 1 and dam foundation concrete cut 2 are along flow flow direction mistake
Arrangement is opened, wherein asphaltic concrete core wall 1 is set to the Upstream section of flow, and dam foundation concrete cut 2 is set under flow
Section is swum, is connected by flexible bituminous concrete 3 between the asphaltic concrete core wall 1 and dam foundation concrete cut 2.
In actual use, as shown in Figure 1, wherein directions of the Fig. 1 from left side to right side is flow flow direction, i.e. Fig. 1
Left side be Upstream section, the right side of Fig. 1 is tract.Due to by asphaltic concrete core wall 1 and dam foundation concrete cut 2 along water
Stream flow direction is staggeredly arranged, to solve the deformation of asphaltic concrete core wall 1 and dam foundation concrete cut 2 and stress group
The stress outstanding problem for closing superposition, under such structure design, asphaltic concrete core wall 1 is no longer directly anti-with dam foundation concrete
The docking of wall 2 is oozed, is directly acted on dam foundation concrete cut 2 so as to avoid the gravity load of asphaltic concrete core wall 1.
When practice of construction, 2 top structure of dam foundation concrete cut can select to do sloping cheese, to reduce dam foundation concrete
Vertical load on cut-pff wall 2 further reduces stress and the deformation of dam foundation concrete cut 2.The present invention is ensureing dam
Under the premise of body stablizes safety, dam foundation concrete cut 2, asphaltic concrete core wall 1 and concrete pedestal knot can be substantially improved
The stress state of structure 11, and it is effectively improved the deep Foundation Anti-seepage effect of dam and seepage control of dam safety, simple and reasonable for structure,
It is easy for construction.
For the ease of the safety detection and later stage anti-Seepage of joint structure, such scheme can be selected:The pitch
The bottom of concrete core-wall 1 be equipped with built-in irrigation gallery concrete mats holder structure 11 and downstream side can material filling area 13.Such as Fig. 1
Shown, concrete mats holder structure 11 can facilitate the anti-Seepage grouting operation in later stage.Further, the bituminous concrete heart
At least one grout hole 12 is arranged in the pedestal of wall 1, is convenient for corresponding cementing operations.
In addition, in order to ensure that overall structure is more reliable and stable, can select in the upper of the asphaltic concrete core wall 1
Side setting upstream transition layer structure 5 is swum, and rockfill area 4, the downstream are set in the upstream side of the upstream transition layer structure 5
The downstream side of transition layer structure 6 is provided with rockfill area 4.Likewise, can also select under the dam foundation concrete cut 2
Side setting downstream transition layer structure 6 is swum, and in the downstream side of the downstream transition layer structure 6 setting anti-filter drainage blanket structure 8.
In general, it is preferred that the basis instrument between the upstream transition layer structure 5 and downstream transition layer structure 6 has consolidation to fill
Structure 9 is starched, it is integrally-built firm to ensure, furthermore it is also possible to which bed course knot is arranged below the flexible bituminous concrete 3
Structure 7, the lower section of the cushion layer structure 7 be provided with can material filling layer 13, to further improve and optimize structure barrier performance.
The present invention combines actual space layout feature, cleverly by asphaltic concrete core wall and dam foundation concrete cut
It is staggeredly arranged, the stress of superposition is combined to solve asphaltic concrete core wall with the deformation of dam foundation concrete cut and stress
Outstanding problem.Increased flexibility bituminous concrete solves the uneven change of asphaltic concrete core wall and dam foundation concrete cut
Shape problem.Wherein, due to the advantage of the structure of the present invention, the size of the pedestal of above-mentioned concrete can be carried out as the case may be
Adjustment, solves traditional asphalt pedestal stress outstanding problem, has very wide market promotion prospect.
Claims (10)
1. asphaltic concrete core wall and dam foundation concrete watertight wall joint structure, including asphaltic concrete core wall (1) and the dam foundation mix
Solidifying soil cut-pff wall (2), it is characterised in that:The asphaltic concrete core wall (1) and dam foundation concrete cut (2) are flowed along flow
Direction is staggeredly arranged, and wherein asphaltic concrete core wall (1) is set to the Upstream section of flow, dam foundation concrete cut (2) setting
Pass through flexible pitch coagulation between the tract of flow, the asphaltic concrete core wall (1) and dam foundation concrete cut (2)
Native (3) connection.
2. asphaltic concrete core wall as described in claim 1 and dam foundation concrete watertight wall joint structure, it is characterised in that:Institute
The bottom for stating asphaltic concrete core wall (1) is equipped with the concrete mats holder structure (11) of built-in irrigation gallery.
3. asphaltic concrete core wall as claimed in claim 1 or 2 and dam foundation concrete watertight wall joint structure, feature exist
In:The pedestal of the asphaltic concrete core wall (1) is provided at least one grout hole (12).
4. asphaltic concrete core wall as described in claim 1 and dam foundation concrete watertight wall joint structure, it is characterised in that:Institute
The upstream side for stating asphaltic concrete core wall (1) is provided with upstream transition layer structure (5).
5. asphaltic concrete core wall as claimed in claim 4 and dam foundation concrete watertight wall joint structure, it is characterised in that:Institute
The upstream side for stating upstream transition layer structure (5) is provided with rockfill area (4).
6. asphaltic concrete core wall as claimed in claim 4 and dam foundation concrete watertight wall joint structure, it is characterised in that:Institute
The downstream side for stating dam foundation concrete cut (2) is provided with downstream transition layer structure (6).
7. asphaltic concrete core wall as claimed in claim 6 and dam foundation concrete watertight wall joint structure, it is characterised in that:Institute
The downstream side for stating downstream transition layer structure (6) is provided with rockfill area (4).
8. asphaltic concrete core wall as claimed in claim 7 and dam foundation concrete watertight wall joint structure, it is characterised in that:Institute
The downstream side for stating downstream transition layer structure (6) is provided with anti-filter drainage blanket structure (8).
9. asphaltic concrete core wall as claimed in claim 6 and dam foundation concrete watertight wall joint structure, it is characterised in that:Institute
Stating the basis instrument between upstream transition layer structure (5) and downstream transition layer structure (6) has consolidation grouting structure (9).
10. asphaltic concrete core wall as claimed in claim 9 and dam foundation concrete watertight wall joint structure, it is characterised in that:
Cushion layer structure (7) is provided with below the flexibility bituminous concrete (3), being provided with below the cushion layer structure (7) can material filling layer
(13)。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810321773.8A CN108301384B (en) | 2018-04-11 | 2018-04-11 | Joint structure of asphalt concrete core wall and dam foundation concrete impervious wall |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810321773.8A CN108301384B (en) | 2018-04-11 | 2018-04-11 | Joint structure of asphalt concrete core wall and dam foundation concrete impervious wall |
Publications (2)
Publication Number | Publication Date |
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CN108301384A true CN108301384A (en) | 2018-07-20 |
CN108301384B CN108301384B (en) | 2024-04-19 |
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CN201810321773.8A Active CN108301384B (en) | 2018-04-11 | 2018-04-11 | Joint structure of asphalt concrete core wall and dam foundation concrete impervious wall |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109356102A (en) * | 2018-11-23 | 2019-02-19 | 中国电建集团成都勘测设计研究院有限公司 | Asphaltic concrete core wall and dam foundation impervious wall connection structure |
CN110004886A (en) * | 2019-05-15 | 2019-07-12 | 中国电建集团中南勘测设计研究院有限公司 | Asphaltic concrete core wall basement construction method and its structure |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US4266885A (en) * | 1977-07-13 | 1981-05-12 | Ohbayashi-Gumi Ltd. | Method of constructing a continuous cut-off wall and a core of a fill-type dam |
US6612779B1 (en) * | 1998-12-10 | 2003-09-02 | Capri Tech Italia S.R.L. | Embankment dam and waterproofing method |
CN104358270A (en) * | 2014-12-03 | 2015-02-18 | 中国电建集团成都勘测设计研究院有限公司 | High core wall rock-fill dam foundation seepage prevention structure on deep overburden layer |
CN105464056A (en) * | 2015-12-08 | 2016-04-06 | 辽宁省水利水电勘测设计研究院 | Anti-seepage structure capable of adapting to settlement of earth and rockfill dam |
CN106368176A (en) * | 2016-11-08 | 2017-02-01 | 中国电建集团成都勘测设计研究院有限公司 | High dam structure built on deep overburden of soil material shortage area |
CN208055997U (en) * | 2018-04-11 | 2018-11-06 | 中国电建集团成都勘测设计研究院有限公司 | Asphaltic concrete core wall and dam foundation concrete watertight wall joint structure |
-
2018
- 2018-04-11 CN CN201810321773.8A patent/CN108301384B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4266885A (en) * | 1977-07-13 | 1981-05-12 | Ohbayashi-Gumi Ltd. | Method of constructing a continuous cut-off wall and a core of a fill-type dam |
US6612779B1 (en) * | 1998-12-10 | 2003-09-02 | Capri Tech Italia S.R.L. | Embankment dam and waterproofing method |
CN104358270A (en) * | 2014-12-03 | 2015-02-18 | 中国电建集团成都勘测设计研究院有限公司 | High core wall rock-fill dam foundation seepage prevention structure on deep overburden layer |
CN105464056A (en) * | 2015-12-08 | 2016-04-06 | 辽宁省水利水电勘测设计研究院 | Anti-seepage structure capable of adapting to settlement of earth and rockfill dam |
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Non-Patent Citations (1)
Title |
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王党在;金伟;王方亮;韩勇;: "泸定水电站粘土心墙堆石坝设计", 水力发电, no. 05, pages 14 - 16 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109356102A (en) * | 2018-11-23 | 2019-02-19 | 中国电建集团成都勘测设计研究院有限公司 | Asphaltic concrete core wall and dam foundation impervious wall connection structure |
CN109356102B (en) * | 2018-11-23 | 2024-01-30 | 中国电建集团成都勘测设计研究院有限公司 | Asphalt concrete core wall and dam foundation impervious wall connecting structure |
CN110004886A (en) * | 2019-05-15 | 2019-07-12 | 中国电建集团中南勘测设计研究院有限公司 | Asphaltic concrete core wall basement construction method and its structure |
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