CN110144856A - The method for preventing narrow V-type river valley high CFRD face slab dislocation to be deformed crack - Google Patents
The method for preventing narrow V-type river valley high CFRD face slab dislocation to be deformed crack Download PDFInfo
- Publication number
- CN110144856A CN110144856A CN201910438678.0A CN201910438678A CN110144856A CN 110144856 A CN110144856 A CN 110144856A CN 201910438678 A CN201910438678 A CN 201910438678A CN 110144856 A CN110144856 A CN 110144856A
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- China
- Prior art keywords
- dam
- river valley
- type river
- embankment material
- filled
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- 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
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- 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)
- Revetment (AREA)
Abstract
The invention discloses a kind of methods for preventing narrow V-type river valley high CFRD face slab dislocation to be deformed crack, dam embankment material is filled in V-type river valley, dam embankment material fills after certain elevation, bulk stone arch is filled on dam embankment material top, dam embankment material is then filled on bulk stone arch top, it carries out repeatedly, until filling to dam crest filler, entirely fills process completion.This method utilizes the arching of rockfill; form the natural sedimentation and deformation for rolling arch point and bearing each layer of top; sedimentation and deformation is set to be in controlled range; structural cracks is generated to reduce dam body whole deformation protection panels and be unlikely to come to nothing; and the range of sedimentation and deformation can be efficiently controlled; ensure the operational safety of dam, and the cost of later period Operation Administration and Maintenance can be reduced.
Description
Technical field
The present invention relates to high CFRD, especially one kind to prevent narrow V-type river valley high CFRD face slab dislocation
The method for being deformed crack is mainly used for reducing the sedimentation and deformation of dam body, and protection panels, which are unlikely to come to nothing, generates structural cracks.
Background technique
The normal recurring structure crack of high CFRD panel, this part-structure crack are mostly because of dam body primary and secondary enrockment
Body sedimentation and deformation, and panel is because of stiffness effect itself, it is difficult to consistent deformation, which is generated, with dam body itself causes panel and dam body
It itself generates and comes to nothing, to generate crack, this is the problem of any rock all certainly exists.In Practical Project:
1. the Shuibuya Dam of 233m high produces 914 cracks.2. the TianshengqiaoⅠdam of 178m high produces
1530 cracks.Panel crack causes leak to jeopardize dam safety；A large amount of leak influences dam and uses function；Processing trouble is thrown
Money is big；And it is not easy to the operational management in later period.Therefore, how to reduce dam body settlement, to avoid the generation in a large amount of cracks of panel
It is a problem.
Summary of the invention
The technical problem to be solved by the invention is to provide one to prevent narrow V-type river valley high CFRD face slab dislocation
The method for being deformed crack, sedimentation and deformation are in controlled range, so that reducing dam body whole deformation protection panels is unlikely to de-
Sky generates structural cracks.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that: one kind preventing the narrow high panel in V-type river valley
Face-plate of rockfill dam comes to nothing the method for being deformed crack, fills dam embankment material in V-type river valley, dam embankment material fills certain height
After journey, bulk stone arch is filled on dam embankment material top, then fills dam embankment material on bulk stone arch top, repeatedly
It carries out, until filling to dam crest filler, entirely fills process completion.
The ratio of width to height in the V-type river valley is between 2.5~4.0.
The dam embankment material with a thickness of between 4.5~6.0m, and fill into the shape of back-off pot.
Block stone grain diameter >=50cm of the bulk stone arch, compression strength >=35MPa.
The arch of the bulk stone arch is with a thickness of 2.5~3.0m.
The beneficial effects of the present invention are: forming natural arch of rolling using the arching of rockfill and dividing receiving top every
One layer of sedimentation and deformation makes sedimentation and deformation be in controlled range, is unlikely to come to nothing to reduce dam body whole deformation protection panels
Generate structural cracks.
Detailed description of the invention
Fig. 1 is the profilograph that layering arch form of the invention fills.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description:
As shown in Figure 1, the side for preventing narrow V-type river valley high CFRD face slab dislocation to be deformed crack of the invention
Method fills dam embankment material 3 in V-type river valley 1, after dam embankment material 3 fills certain elevation, fills out on 3 top of dam embankment material
Bulk stone arch 2 is built, dam embankment material 3 is then filled on 2 top of bulk stone arch, carries out repeatedly, is filled out until filling to dam crest
Material 4 entirely fills process completion.
The ratio of width to height in the V-type river valley 1 is between 2.5~4.0.
The dam embankment material 3 with a thickness of between 4.5~6.0m, and fill into the shape of back-off pot.
Block stone grain diameter >=50cm of the bulk stone arch 2, compression strength >=35MPa.
The arch of the bulk stone arch 2 is with a thickness of 2.5~3.0m.
The present invention utilizes the arching of rockfill, forms the natural sedimentation change for rolling arch point and bearing each layer of top
Shape makes sedimentation and deformation be in controlled range, generates structural cracks to reduce dam body whole deformation protection panels and be unlikely to come to nothing.
Specifically, comprising the following steps:
1, dam embankment material 3 is filled in V-type river valley 1, and top surface is rolled into arch form.
It 2, is that 2.5~3.0m is big in 3 top filling-up thickness of dam embankment material after dam embankment material 3 fills 4.5~6.0m
Block stone arch 2.
3, dam embankment material 3 is then filled on 2 top of bulk stone arch
4, it repeats the above steps until filling to dam crest filler 4.
Embodiment described above is merely to illustrate technical idea and feature of the invention, in the art its object is to make
Technical staff it will be appreciated that the contents of the present invention and implement accordingly, patent model of the invention only cannot be limited with the present embodiment
It encloses, i.e., same changes or modifications made by all disclosed spirit are still fallen in the scope of the patents of the invention.
Claims (5)
1. a kind of method for preventing narrow V-type river valley high CFRD face slab dislocation to be deformed crack, which is characterized in that
V-type river valley (1) fills dam embankment material (3), after dam embankment material (3) fills certain elevation, on dam embankment material (3) top
Bulk stone arch (2) are filled, dam embankment material (3) is then filled on bulk stone arch (2) top, carries out repeatedly, until filling
To dam crest filler (4), process completion is entirely filled.
2. the method for preventing narrow V-type river valley high CFRD face slab dislocation to be deformed crack according to claim 1,
It is characterized in that, the ratio of width to height of the V-type river valley (1) is between 2.5~4.0.
3. the method for preventing narrow V-type river valley high CFRD face slab dislocation to be deformed crack according to claim 1,
It is characterized in that, the dam embankment material (3) with a thickness of between 4.5~6.0m, and fill into the shape of back-off pot.
4. the method for preventing narrow V-type river valley high CFRD face slab dislocation to be deformed crack according to claim 1,
It is characterized in that, block stone grain diameter >=50cm of the bulk stone arch (2), compression strength >=35MPa.
5. the method for preventing narrow V-type river valley high CFRD face slab dislocation to be deformed crack according to claim 1,
It is characterized in that, the arch of the bulk stone arch (2) is with a thickness of 2.5~3.0m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910438678.0A CN110144856B (en) | 2019-05-24 | 2019-05-24 | Method for preventing deformation cracks generated by face plate of rock-fill dam of narrow V-shaped valley high face plate from being hollowed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910438678.0A CN110144856B (en) | 2019-05-24 | 2019-05-24 | Method for preventing deformation cracks generated by face plate of rock-fill dam of narrow V-shaped valley high face plate from being hollowed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110144856A true CN110144856A (en) | 2019-08-20 |
| CN110144856B CN110144856B (en) | 2020-10-27 |
Family
ID=67593214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910438678.0A Active CN110144856B (en) | 2019-05-24 | 2019-05-24 | Method for preventing deformation cracks generated by face plate of rock-fill dam of narrow V-shaped valley high face plate from being hollowed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110144856B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945675A (en) * | 2020-07-30 | 2020-11-17 | 四川大学 | Interval alternate die-increasing longitudinal partition arc-shaped cabin face filling earth-rock dam |
| CN114293517A (en) * | 2022-02-24 | 2022-04-08 | 中水北方勘测设计研究有限责任公司 | Method for preventing asphalt concrete core wall and concrete base from pulling apart in high mountain canyon region |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101367657B1 (en) * | 2011-11-25 | 2014-02-28 | 주식회사 정원종합산업 | Method for constructing face slab of concrete face rockfill dam |
| CN204356738U (en) * | 2014-12-11 | 2015-05-27 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of concrete face rockfill dam upstream face structure of preventing face slab dislocation |
| CN106812119A (en) * | 2017-03-10 | 2017-06-09 | 水利部交通运输部国家能源局南京水利科学研究院 | Gasbag-type automatic safety device and its method for designing that face-plate of rockfill dam comes to nothing |
-
2019
- 2019-05-24 CN CN201910438678.0A patent/CN110144856B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101367657B1 (en) * | 2011-11-25 | 2014-02-28 | 주식회사 정원종합산업 | Method for constructing face slab of concrete face rockfill dam |
| CN204356738U (en) * | 2014-12-11 | 2015-05-27 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of concrete face rockfill dam upstream face structure of preventing face slab dislocation |
| CN106812119A (en) * | 2017-03-10 | 2017-06-09 | 水利部交通运输部国家能源局南京水利科学研究院 | Gasbag-type automatic safety device and its method for designing that face-plate of rockfill dam comes to nothing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945675A (en) * | 2020-07-30 | 2020-11-17 | 四川大学 | Interval alternate die-increasing longitudinal partition arc-shaped cabin face filling earth-rock dam |
| CN114293517A (en) * | 2022-02-24 | 2022-04-08 | 中水北方勘测设计研究有限责任公司 | Method for preventing asphalt concrete core wall and concrete base from pulling apart in high mountain canyon region |
| CN114293517B (en) * | 2022-02-24 | 2023-09-29 | 中水北方勘测设计研究有限责任公司 | Method for preventing asphalt concrete core wall and concrete base in mountain gorge valley region from cracking |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110144856B (en) | 2020-10-27 |
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