CN106638483A - Permanent key groove seam of rockfill dam face slab - Google Patents
Permanent key groove seam of rockfill dam face slab Download PDFInfo
- Publication number
- CN106638483A CN106638483A CN201610955286.8A CN201610955286A CN106638483A CN 106638483 A CN106638483 A CN 106638483A CN 201610955286 A CN201610955286 A CN 201610955286A CN 106638483 A CN106638483 A CN 106638483A
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- China
- Prior art keywords
- block
- panel
- face
- poured
- plate
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Classifications
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a permanent key groove seam of a rockfill dam face slab. The permanent key groove seam comprises a face slab pre-poured block and a face slab later-poured block, wherein a main stress key groove is formed in a horizontal key groove seam formed between the face slab pre-poured block and the face slab later-poured block; a trapezoid seam section is reserved at a parting joint of the upstream faces of the face slab pre-poured block and the face slab later-poured block; a base fabric and hand-scraping polyurea are arranged on the trapezoid seam section; a water stopping copper sheet is arranged at a parting joint of the downstream faces of the face slab pre-poured block and the face slab later-poured block; the main stress key groove is arc-shaped; the arc-shaped main stress key groove forms arc surface contact between the seam surfaces of horizontal seams formed in the face slab pre-poured block and the face slab later-poured block; and the formed arc surface is perpendicular to the direction of main stress on the seam surfaces. By the adoption of the structure, the risk of splitting of concrete at the parting joints and the phenomenon of slippage of the later-poured block along the seam surfaces of the horizontal seams can be avoided, the stability of engineering is guaranteed, the engineering quality of the face slab and a dam are improved, and the engineering life of the face slab and the dam are prolonged.
Description
Technical field
The present invention relates to rock fill dam construction field, particularly a kind of face-plate of rockfill dam persistent key line of rabbet joint.
Background technology
At present, face-plate of rockfill dam especially long panel for control panel crack needs, or due to panel concrete
Time-out is poured etc. under fortuitous event, and panel is segmented in the horizontal direction substage construction, and plane suture pattern, and water are employed at segmentation
Square to permanent seam perpendicular to panel plate face or in horizontally disposed.This method does not account for panel operation or stress becomes
During shape, stitching the concrete slab plate face linear contact lay of first after-pouring at face causes the risk of panel failure by shear, does not also account for
Upper board and after pour plate and prolong horizontal joint to the situation of bottom sliding.
The content of the invention
The technical problem to be solved is to provide a kind of face-plate of rockfill dam persistent key line of rabbet joint, can effectively solve the problem that existing
There is the problem in technology, improve horizontal joint seam face force-bearing situation, horizontal joint is potentially first contacted load and is converted to face and is connect
Tactile load, it is to avoid the risk of concrete splitting at parting.
To solve above-mentioned technical problem, the technical solution adopted in the present invention is：A kind of face-plate of rockfill dam persistent key line of rabbet joint,
First pour including panel and block is poured after block and panel, panel is first poured to be poured after block and panel and arranged in the horizontal keyway seam formed between block
There is principal stress keyway, panel first pours to be poured after block and panel and trapezoidal seam section is reserved with the upstream face parting of block, trapezoidal seam Duan Shangshe
There are tire base fabric and hand to scrape polyureas.
In preferred scheme, described panel is first poured to be poured after block and panel and be provided with sealing copper at parting of the block on back side
Piece.
In preferred scheme, described trapezoidal seam section is the groove structure of rectangular cross-section, and trapezoidal seam section is perpendicular to enrockment
Dam facing plate upstream face.
In preferred scheme, described trapezoidal seam section side is first poured for panel and the oblique of block chamfering formation is poured after block and panel
Face, the section of trapezoidal seam section is triangle.
In preferred scheme, described principal stress keyway is arc, and the principal stress keyway of arc makes panel first pour block and face
Pour after plate and formed between the horizontal joint seam face that block is formed cambered surface contact, the cambered surface for being formed is perpendicular to seam face principal direction of stress.
In preferred scheme, described panel first pours to be poured after block and panel and antiseepage lid is additionally provided with the upstream face parting of block
Piece, antiseepage cover plate is arranged between tire base fabric and trapezoidal seam section.
In preferred scheme, filling closed-cell foam plate or composite water-stop bar or ethylene propylene diene rubber in described trapezoidal seam section
Plate.
In preferred scheme, filling GB flexible fillers in described trapezoidal seam section.
A kind of face-plate of rockfill dam persistent key line of rabbet joint provided by the present invention, by adopting said structure, can be effectively improved
Stressing conditions at horizontal joint seam face, by slab movement, loading process, potential linear contact lay load turns at horizontal joint
Principal stress cambered surface face contact load is changed to, increases lifting surface area, it is to avoid the risk of concrete splitting at parting, while panel
First pour arc principal stress keyway between block is poured after block and panel so that panel first pour pour after block and panel between block formed cambered surface connect
Touch, it is to avoid after pour the situation that block stitches face sliding along horizontal joint, it is ensured that the stability of engineering, improve panel and dam
Construction quality and engineering life-span.
Description of the drawings
With reference to the accompanying drawings and examples the invention will be further described：
Fig. 1 is cross-sectional view at the parting of patent of the present invention；
Fig. 2 is cross-sectional view at another kind of parting of patent of the present invention.
In figure：Panel first pours block 1, copper seal 2, principal stress keyway 3, pours block 4 after panel, trapezoidal seam section 5, tire base fabric 6,
Hand scrapes polyureas 7, antiseepage cover plate 8.
Specific embodiment
A kind of face-plate of rockfill dam persistent key line of rabbet joint, including panel first pours and block poured after block and panel, panel first pours block and panel
Pour afterwards in the horizontal keyway seam formed between block and be provided with principal stress keyway, panel first pours the upstream face that block is poured after block and panel
Trapezoidal seam section is reserved with parting, trapezoidal seam section is provided with tire base fabric and hand scrapes polyureas.
In preferred scheme, described panel is first poured to be poured after block and panel and be provided with sealing copper at parting of the block on back side
Piece.
In preferred scheme, described trapezoidal seam section is the groove structure of rectangular cross-section, and trapezoidal seam section is perpendicular to enrockment
Dam facing plate upstream face.
In preferred scheme, described principal stress keyway is arc, and the principal stress keyway of arc makes panel first pour block and face
Pour after plate and formed between the horizontal joint seam face that block is formed cambered surface contact, the cambered surface for being formed is perpendicular to seam face principal direction of stress.
In preferred scheme, filling closed-cell foam plate or composite water-stop bar or ethylene propylene diene rubber in described trapezoidal seam section
Plate.
Embodiment 2：
A kind of face-plate of rockfill dam persistent key line of rabbet joint, including panel first pours and block poured after block and panel, panel is first poured and poured after block and panel
Principal stress keyway is provided with the horizontal keyway seam formed between block, panel first pours the upstream face parting that block is poured after block and panel
Place is reserved with trapezoidal seam section, and trapezoidal seam section is provided with tire base fabric and hand scrapes polyureas.
In preferred scheme, described panel is first poured to be poured after block and panel and be provided with sealing copper at parting of the block on back side
Piece.
In preferred scheme, described trapezoidal seam section side is first poured for panel and the oblique of block chamfering formation is poured after block and panel
Face, the section of trapezoidal seam section is triangle.
In preferred scheme, described principal stress keyway is arc, and the principal stress keyway of arc makes panel first pour block and face
Pour after plate and formed between the horizontal joint seam face that block is formed cambered surface contact, the cambered surface for being formed is perpendicular to seam face principal direction of stress.
In preferred scheme, described panel first pours to be poured after block and panel and antiseepage lid is additionally provided with the upstream face parting of block
Piece, antiseepage cover plate is arranged between tire base fabric and trapezoidal seam section.
In preferred scheme, filling GB flexible fillers in described trapezoidal seam section.
By adopting said structure, the stressing conditions at horizontal joint seam face are effectively improved, increase lifting surface area, it is to avoid
At parting concrete splitting and after pour the risk that block stitches face sliding along horizontal joint, it is ensured that the stability of engineering, carry
High construction quality and the engineering life-span of panel and dam.
Claims (8)
1. a kind of face-plate of rockfill dam persistent key line of rabbet joint, including panel first pours block（1）With block is poured after panel（4）, it is characterized in that：Panel
First pour block（1）With block is poured after panel（4）Between formed horizontal keyway seam in be provided with principal stress keyway（3）, panel first pours
Block（1）With block is poured after panel（4）Upstream face parting at be reserved with trapezoidal seam section（5）, trapezoidal seam section（5）It is provided with tire base fabric
（6）Polyureas is scraped with hand（7）.
2. a kind of face-plate of rockfill dam persistent key line of rabbet joint according to claim 1, it is characterised in that：Described panel first pours block
（1）With block is poured after panel（4）Copper seal is provided with parting on back side（2）.
3. a kind of face-plate of rockfill dam persistent key line of rabbet joint according to claim 2, it is characterised in that：Described trapezoidal seam section
（5）It is the groove structure of rectangular cross-section, trapezoidal seam section（5）Perpendicular to face-plate of rockfill dam upstream face.
4. a kind of face-plate of rockfill dam persistent key line of rabbet joint according to claim 2, it is characterised in that：Described trapezoidal seam section
（5）Block is first poured for panel in side（1）With block is poured after panel（4）The inclined-plane that chamfering is formed, trapezoidal seam section（5）Section be triangle
Shape.
5. a kind of face-plate of rockfill dam persistent key line of rabbet joint according to claim 3 or 4, it is characterised in that：Described principal stress
Keyway（3）For arc, the principal stress keyway of arc（3）Panel is set first to pour block（1）With block is poured after panel（4）The horizontal joint for being formed
Cambered surface contact is formed between seam face, the cambered surface for being formed is perpendicular to seam face principal direction of stress.
6. a kind of face-plate of rockfill dam persistent key line of rabbet joint according to claim 4, it is characterised in that：Described panel first pours block
（1）With block is poured after panel（4）Upstream face parting at be additionally provided with antiseepage cover plate（8）, antiseepage cover plate（8）It is arranged on tire base fabric（6）
With trapezoidal seam section（5）Between.
7. a kind of face-plate of rockfill dam persistent key line of rabbet joint according to claim 3, it is characterised in that：Described trapezoidal seam section
（5）Interior filling closed-cell foam plate or composite water-stop bar or ethylene-propylene-diene monomer offset plate.
8. a kind of face-plate of rockfill dam persistent key line of rabbet joint according to claim 4, it is characterised in that：Described trapezoidal seam section
（5）Interior filling GB flexible fillers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610955286.8A CN106638483A (en) | 2016-10-27 | 2016-10-27 | Permanent key groove seam of rockfill dam face slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610955286.8A CN106638483A (en) | 2016-10-27 | 2016-10-27 | Permanent key groove seam of rockfill dam face slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106638483A true CN106638483A (en) | 2017-05-10 |
Family
ID=58821547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610955286.8A Pending CN106638483A (en) | 2016-10-27 | 2016-10-27 | Permanent key groove seam of rockfill dam face slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106638483A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859007A (en) * | 2017-11-28 | 2018-03-30 | 四川大学 | It is a kind of to be used for the concrete slab with keyway in rock |
| CN108221866A (en) * | 2018-01-23 | 2018-06-29 | 中国水利水电科学研究院 | Severe cold area slab joint surface layer, which is put down, covers type flexibility water sealing structure and installation method |
| CN114991075A (en) * | 2022-07-15 | 2022-09-02 | 中电建十一局工程有限公司 | Construction method for improving crack resistance and seepage resistance of buried concrete dam |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1663093A1 (en) * | 1989-04-14 | 1991-07-15 | Сибирский филиал Всесоюзного научно-исследовательского института гидротехники им.Б.Е.Веденеева | Antiseepage diaphragm for earthfill dam |
| CN203716115U (en) * | 2014-01-26 | 2014-07-16 | 中国水电顾问集团北京勘测设计研究院有限公司 | Structural joint for stilling pool bottom plate of discharge structure |
| CN203960819U (en) * | 2014-07-11 | 2014-11-26 | 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 of Rock-fill Dam arc-shaped slit structure |
| CN206110094U (en) * | 2016-10-27 | 2017-04-19 | 中国葛洲坝集团第一工程有限公司 | Permanent keyway of rockfill dam panel seam |
-
2016
- 2016-10-27 CN CN201610955286.8A patent/CN106638483A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1663093A1 (en) * | 1989-04-14 | 1991-07-15 | Сибирский филиал Всесоюзного научно-исследовательского института гидротехники им.Б.Е.Веденеева | Antiseepage diaphragm for earthfill dam |
| CN203716115U (en) * | 2014-01-26 | 2014-07-16 | 中国水电顾问集团北京勘测设计研究院有限公司 | Structural joint for stilling pool bottom plate of discharge structure |
| CN203960819U (en) * | 2014-07-11 | 2014-11-26 | 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 of Rock-fill Dam arc-shaped slit structure |
| CN206110094U (en) * | 2016-10-27 | 2017-04-19 | 中国葛洲坝集团第一工程有限公司 | Permanent keyway of rockfill dam panel seam |
Non-Patent Citations (1)
| Title |
|---|
| "《新疆坝工建设进展》" * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859007A (en) * | 2017-11-28 | 2018-03-30 | 四川大学 | It is a kind of to be used for the concrete slab with keyway in rock |
| CN108221866A (en) * | 2018-01-23 | 2018-06-29 | 中国水利水电科学研究院 | Severe cold area slab joint surface layer, which is put down, covers type flexibility water sealing structure and installation method |
| CN108221866B (en) * | 2018-01-23 | 2023-11-17 | 中国水利水电科学研究院 | Panel joint surface layer flat-covering type flexible water stop structure in severe cold region and mounting method |
| CN114991075A (en) * | 2022-07-15 | 2022-09-02 | 中电建十一局工程有限公司 | Construction method for improving crack resistance and seepage resistance of buried concrete dam |
| CN114991075B (en) * | 2022-07-15 | 2023-12-01 | 中电建十一局工程有限公司 | Construction method for improving anti-cracking and anti-permeability of stone-buried concrete dam |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |