CN110552327A - Steel face rockfill dam - Google Patents
Steel face rockfill dam Download PDFInfo
- Publication number
- CN110552327A CN110552327A CN201910910839.1A CN201910910839A CN110552327A CN 110552327 A CN110552327 A CN 110552327A CN 201910910839 A CN201910910839 A CN 201910910839A CN 110552327 A CN110552327 A CN 110552327A
- Authority
- CN
- China
- Prior art keywords
- steel
- rockfill
- seepage
- dam
- main
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 60
- 239000010959 steel Substances 0.000 title claims abstract description 60
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 16
- 229920002635 polyurethane Polymers 0.000 claims abstract description 11
- 239000004814 polyurethane Substances 0.000 claims abstract description 11
- 230000002265 prevention Effects 0.000 claims description 9
- 230000035882 stress Effects 0.000 claims description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 23
- 238000010276 construction Methods 0.000 abstract description 16
- 238000011144 upstream manufacturing Methods 0.000 abstract description 9
- 239000011150 reinforced concrete Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000004020 conductor Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011257 shell material Substances 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
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
-
- 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
Abstract
The invention discloses a steel-faced rockfill dam, which is characterized in that leveling mortar is sprayed on the slope surface of a main rockfill body, an anti-seepage steel face plate is arranged on the leveling mortar, polyurethane is sprayed on the surface of the anti-seepage steel face plate, a secondary rockfill body is arranged behind the main rockfill body, a steel toe plate is arranged at the upstream slope foot of the main rockfill body, the steel toe plate is connected with an anti-seepage curtain to form a closed anti-seepage system, an upstream paving cover is arranged at the upper part of the steel toe plate, a drainage ridge body is arranged at the downstream slope foot of the secondary rockfill body, a rock block slope is arranged at the downstream slope surface of the secondary rockfill body, and a wave. The invention replaces reinforced concrete panels with steel panels. The problem that cracks are generated due to the fact that stress of the traditional reinforced concrete face is uneven due to deformation of the dam body and the problem that temperature cracks are generated due to temperature change of the concrete face can be solved, the seepage-proofing effect of the face rockfill dam can be effectively improved on the premise that construction cost is not increased, construction measures are simplified, and engineering maintenance difficulty is reduced.
Description
Technical Field
The invention relates to a concrete faced rockfill dam, in particular to a steel faced rockfill dam.
Background
In recent years, the concrete face rockfill dam is widely applied to dam engineering, and has the advantages of lower requirement on geological conditions at a dam site, capability of fully utilizing local materials, lower construction cost and higher construction speed. With the development of technology, concrete panel rock-fill dams are continually breached in dam height, with the highest concrete panel rock-fill dams approaching 250 meters. Concrete face plates are generally adopted as seepage-proofing bodies of concrete face plates, and rockfill materials are used as supporting structures of dam bodies. For a concrete face rockfill dam, the problem of face cracking is always an engineering problem, in order to prevent the problem of cracks caused by uneven face plate stress caused by deformation of a dam body, the deformation of the dam body needs to be strictly controlled, strict requirements on dam material quality, dam body filling standards and the like need to be provided, and in order to prevent the problem of temperature cracks caused by temperature change of the face plate, strict temperature control measures need to be provided on concrete materials and construction. Even in concrete faced dams, which are abbreviated as concrete faced dams in recent years, many faced rock-fill dams still have cracks, and although the concrete faced dams can be used normally after being repaired, the problem is really a problem that design and construction personnel are very troublesome.
Disclosure of Invention
The invention aims to solve the technical problem of providing a steel panel rock-fill dam, which adopts steel panels to replace reinforced concrete panels and can prevent the problems of cracks caused by uneven stress of the panels caused by deformation of a dam body and temperature cracks caused by temperature change of the concrete panels in the traditional reinforced concrete panels.
In order to solve the technical problems, the invention adopts the technical scheme that: a steel face plate rock-fill dam sprays leveling mortar on the slope surface of a main rock-fill body, an anti-seepage steel face plate is arranged on the leveling mortar, polyurethane is sprayed on the surface of the anti-seepage steel face plate, a secondary rock-fill body is arranged behind the main rock-fill body, a steel toe plate is arranged at the upstream slope foot of the main rock-fill body, the steel toe plate is connected with an anti-seepage curtain to form a closed anti-seepage system, an upstream cover is arranged at the upper part of the steel toe plate, a drainage ridge body is arranged at the downstream slope foot of the secondary rock-fill body, a rock block slope is arranged on the downstream slope surface of the secondary rock-fill body, and a wave.
The thickness of the anti-seepage steel panel arranged on the slope surface of the main rockfill body is more than or equal to 1 cm.
The thickness of the polyurethane is more than or equal to 5cm, the heat preservation and rust prevention effects are achieved, and the excessive temperature stress of the temperature load on the steel plate and the panel corrosion and aging are prevented.
The fluctuation difference of the leveling mortar is less than or equal to 2 cm.
The invention has the beneficial effects that: the steel face plate is adopted to replace a reinforced concrete face plate, and the spraying leveling mortar is carried out behind the steel face plate to be connected with the rockfill area, so that the problem that cracks are generated due to uneven stress of the face plate caused by deformation of a dam body of the traditional reinforced concrete face plate and the problem of temperature cracks of the concrete face plate caused by temperature change can be solved. Secondly, the steel panel is sprayed with a polyurethane protective layer to preserve heat, prevent temperature load from generating overlarge temperature stress on the steel plate and play a role in rust prevention. And thirdly, because the steel plate is a conductor, when the panel is subjected to water seepage, the water seepage position of the panel can be found through quality detection.
Drawings
Fig. 1 is a typical sectional view of a steel faced rockfill dam of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
As shown in figure 1, the steel-faced rockfill dam of the invention sprays leveling mortar 3 on the slope of a main rockfill body 5, an anti-seepage steel face plate 1 is arranged on the leveling mortar 3, polyurethane 2 is sprayed on the surface of the anti-seepage steel face plate 1, a secondary rockfill body 6 is arranged behind the main rockfill body 5, a steel toe plate 4 is arranged at the upstream slope foot of the main rockfill body 5, the steel toe plate 4 is connected with an anti-seepage curtain 10 to form a closed anti-seepage system, an upstream paving cover 9 is arranged at the upper part of the steel toe plate 4, a drainage arris 11 is arranged at the downstream slope foot of the secondary rockfill body 6, a rock block slope 7 is arranged at the downstream slope of the secondary rockfill body 6, and a wave-proof wall 8 is arranged at.
The thickness of the anti-seepage steel face plate 1 arranged on the slope surface of the main rockfill body 5 is more than or equal to 1 cm. The thickness of the polyurethane 2 is more than or equal to 5cm, the heat preservation and rust prevention effects are achieved, and the excessive temperature stress of the steel plate caused by temperature load and the panel corrosion and aging are prevented. The leveling mortar 3 is required to be flat in construction, and the fluctuation difference of the leveling mortar 3 is less than or equal to 2 cm.
The invention adopts an anti-seepage steel panel 1 and a reinforced concrete panel for replacing the traditional panel rock-fill dam, the anti-seepage steel panel is provided with parting and rust-proof treatment measures, leveling mortar is sprayed between a steel plate and dam shell materials, steel toe plates are arranged on the periphery of the steel panel and connected with the anti-seepage steel panel and an anti-seepage curtain, and the rest sections are arranged on the same surface of the traditional concrete panel rock-fill dam. Compared with concrete materials, the steel plate has higher cost of single materials, but has good anti-seepage effect, and basically can not seep water as long as the construction quality is good. Even if water seepage occurs due to problems of construction quality and the like, the water seepage position of the steel plate can be found through quality detection because the steel plate is a conductor. From economic analysis, assuming that a 1cm steel plate is used for replacing a 1 m concrete plate, the steel amount for the steel plate with the area of 1 square meter is 0.078t, the concrete amount for the concrete with the area of 1 square meter is 1 square, and after multiplying the corresponding unit price, the difference between the two is not great, considering the price rise of concrete materials, needing to be configured with reinforcing steel bars and the like, the manufacturing cost of concrete is higher, namely the steel plate is probably more advantageous economically.
As will be described in detail below, after the dam foundation is excavated, the construction of the impervious curtain 10 is performed, and after the foundation treatment is completed, the filling construction of the main rockfill area 5, the secondary rockfill area 6 and the drainage body 11 is performed first, so that the rockfill material at the adjacent parts during the construction is required to be leveled and filled, and the construction mode and the requirement are the same as those of the conventional concrete-faced rockfill dam. After the main rockfill area 5, the secondary rockfill area 6 and the drainage body 11 are filled to a certain height, the construction of the leveling mortar layer 3 is carried out by spraying, and the leveling mortar layer 3 is required to be flat in the construction, wherein the fluctuation difference is less than or equal to 2 cm. The polyurethane 2 is sprayed on the surface of the steel panel 1, the thickness of the polyurethane 2 is more than or equal to 5cm, the heat preservation and rust prevention effects are achieved, and the excessive temperature stress of the temperature load on the steel panel 1 and the corrosion and aging of the steel panel 1 are prevented. The steel panel 1 is set according to topographic and geological conditions and finite element calculation results and by referring to engineering experience, vertical seams are arranged, and water stopping is arranged between the vertical seams. And finally, arranging an upstream cover weight 9 at the upstream toe of the dam body according to the design requirement, and finishing the whole construction.
The main rockfill area 5, the secondary rockfill area 6, the rock block revetment 7, the wave wall 8, the upstream cover weight 9, the anti-seepage curtain 10, the drainage body 11 and other regional material requirements refer to the design specification of the concrete panel rockfill dam (Sl228-2013) in the same way as the traditional concrete panel rockfill dam.
The above examples are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the scope of the present invention is not limited by the examples, i.e., the equivalent changes or modifications made in the spirit of the present invention disclosed are still within the scope of the present invention.
Claims (4)
1. The utility model provides a steel face plate rock-fill dam, a serial communication port, spray mortar (3) of making level on main rockfill body (5) is domatic, it sets up prevention of seepage steel face plate (1) to make level on mortar (3), prevention of seepage steel face plate (1) surface spraying polyurethane (2), main rockfill body (5) set up time rockfill body (6) at the back, main rockfill body (5) upper reaches toe sets up steel toe board (4), steel toe board (4) are connected with prevention of seepage curtain (10) and are formed and seal prevention of seepage system, steel toe board (4) upper portion sets up upper reaches shop cover (9), time rockfill body (6) lower reaches toe sets up drainage arris (11), time rockfill body (6) low reaches set up lump stone bank protection (7), the dam crest sets up wave wall (8).
2. The steel faced rockfill dam according to claim 1, wherein the impervious steel faced slab (1) is provided on the slope of the main rockfill body (5) with a thickness of 1cm or more.
3. The steel faced rockfill dam of claim 1, wherein the thickness of the polyurethane (2) is more than or equal to 5cm, and the polyurethane plays a role in heat preservation and rust prevention, and prevents excessive temperature stress of a steel plate caused by temperature load and panel corrosion and aging.
4. The steel faced rockfill dam according to claim 1, wherein the difference of fluctuation of the leveling mortar (3) is less than or equal to 2 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910910839.1A CN110552327A (en) | 2019-09-25 | 2019-09-25 | Steel face rockfill dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910910839.1A CN110552327A (en) | 2019-09-25 | 2019-09-25 | Steel face rockfill dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110552327A true CN110552327A (en) | 2019-12-10 |
Family
ID=68741462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910910839.1A Pending CN110552327A (en) | 2019-09-25 | 2019-09-25 | Steel face rockfill dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110552327A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984080A (en) * | 2019-12-27 | 2020-04-10 | 水利部水利水电规划设计总院 | Steel plate core rock-fill dam |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2652997Y (en) * | 2002-11-13 | 2004-11-03 | 谷春太 | Steel surface stone dam |
| CN2918533Y (en) * | 2006-06-29 | 2007-07-04 | 中国水电顾问集团成都勘测设计研究院 | Embankment seepage preventing structure |
| CN102797241A (en) * | 2012-08-30 | 2012-11-28 | 合肥工业大学 | Resin panel earth-rock fill dam and panel construction method |
| CN103225285A (en) * | 2013-05-11 | 2013-07-31 | 天津大学 | Steel membrane concrete faced rockfill dam |
| CN105155477A (en) * | 2015-10-10 | 2015-12-16 | 中国电建集团成都勘测设计研究院有限公司 | High earth-rock dam slope protection structure and construction method thereof |
| CN109338998A (en) * | 2018-10-12 | 2019-02-15 | 中水电第十工程局（郑州）有限公司 | A kind of stainless steel faceplate rock-fill dams |
| CN109629523A (en) * | 2018-12-20 | 2019-04-16 | 重庆大学 | A kind of steel plate and concrete composite panel earth and rockfill dam and its construction method |
| CN211080131U (en) * | 2019-09-25 | 2020-07-24 | 水利部水利水电规划设计总院 | Steel face plate rock-fill dam |
-
2019
- 2019-09-25 CN CN201910910839.1A patent/CN110552327A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2652997Y (en) * | 2002-11-13 | 2004-11-03 | 谷春太 | Steel surface stone dam |
| CN2918533Y (en) * | 2006-06-29 | 2007-07-04 | 中国水电顾问集团成都勘测设计研究院 | Embankment seepage preventing structure |
| CN102797241A (en) * | 2012-08-30 | 2012-11-28 | 合肥工业大学 | Resin panel earth-rock fill dam and panel construction method |
| CN103225285A (en) * | 2013-05-11 | 2013-07-31 | 天津大学 | Steel membrane concrete faced rockfill dam |
| CN105155477A (en) * | 2015-10-10 | 2015-12-16 | 中国电建集团成都勘测设计研究院有限公司 | High earth-rock dam slope protection structure and construction method thereof |
| CN109338998A (en) * | 2018-10-12 | 2019-02-15 | 中水电第十工程局（郑州）有限公司 | A kind of stainless steel faceplate rock-fill dams |
| CN109629523A (en) * | 2018-12-20 | 2019-04-16 | 重庆大学 | A kind of steel plate and concrete composite panel earth and rockfill dam and its construction method |
| CN211080131U (en) * | 2019-09-25 | 2020-07-24 | 水利部水利水电规划设计总院 | Steel face plate rock-fill dam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984080A (en) * | 2019-12-27 | 2020-04-10 | 水利部水利水电规划设计总院 | Steel plate core rock-fill dam |
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