CN109113030B - Concrete panel rock-fill dam panel seismic structure and construction method thereof - Google Patents
Concrete panel rock-fill dam panel seismic structure and construction method thereof Download PDFInfo
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- CN109113030B CN109113030B CN201811067921.4A CN201811067921A CN109113030B CN 109113030 B CN109113030 B CN 109113030B CN 201811067921 A CN201811067921 A CN 201811067921A CN 109113030 B CN109113030 B CN 109113030B
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- 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 provides a concrete panel rock-fill dam panel earthquake-resistant structure, which comprises a rock-fill dam cushion layer, a plastic concrete panel layer and a concrete panel, wherein the concrete panel layer is arranged on the concrete panel rock-fill dam cushion layer; a steel bar structure is arranged inside the concrete panel; the concrete panel is provided with a plurality of vertical parting joints a; the plastic concrete panel layer is provided with a plurality of vertical parting joints b; inserting plates b with T-shaped sections are arranged in the vertical parting joints b; the plastic concrete is paved between the original concrete face plate and the rock-fill dam cushion layer to serve as the intermediate layer, so that the structural form of the face plate is improved by the plastic concrete during the operation period and the earthquake period, and the construction is efficiently and conveniently carried out on the engineering.
Description
Technical Field
The invention relates to the field of a panel earthquake-resistant structure of a rock-fill dam, in particular to a panel earthquake-resistant structure of a concrete panel rock-fill dam and a construction method thereof.
Background
The safety and reliability of the concrete face slab as the main seepage-proofing structure of the face slab rock-fill dam are one of the main concerns of the dam industry. Under the action of self weight and earthquake load, the panel usually has larger tensile stress, and because the concrete material has weaker capability of resisting tensile deformation, structural tensile cracks penetrating through the panel are easy to generate.
The existing design scheme of the concrete faced rockfill dam is that a cushion material with more fine grain content is arranged below a concrete faced rockfill dam to control the relative smoothness of contact between the concrete faced rockfill dam and a rockfill body and reduce the stress of the concrete faced rockfill dam. However, the panel dam still has a void phenomenon caused by the difficulty in coordinating the panel with the deformation of the rock-fill body during operation and earthquake, so that the panel is damaged due to large stress, particularly tensile stress.
Disclosure of Invention
The invention provides a panel anti-seismic structure of a concrete panel rock-fill dam, which solves the problem that the panel is damaged due to large tensile stress and the phenomenon of void caused by difficult deformation and coordination of the panel and a rock-fill body in the operation period and the earthquake period of the panel dam; the invention effectively improves the stress of the panel, thereby effectively preventing and reducing the occurrence of the phenomenon that the control panel is damaged by tension.
The invention provides a concrete panel rock-fill dam panel anti-seismic structure, which is characterized in that plastic concrete is laid between an original concrete panel and a rock-fill dam cushion layer to serve as an intermediate interlayer, so that the structural form of the panel with the stress applied during the operation period and the earthquake period of the panel improved by the plastic concrete is fully utilized, and the construction is efficiently and conveniently carried out on the engineering; especially, the plastic concrete is paved to effectively coordinate the deformation between the original concrete panel and the bedding material, thereby well improving the stress condition of the panel under the action of dead weight load and earthquake; in addition, the rock-fill dam cushion layer, the plastic concrete panel layer and the concrete panel are respectively connected through the inserting plate a and the inserting plate b, so that the phenomenon that the panel dam is difficult to generate a void phenomenon due to the fact that the panel dam is difficult to be coordinated with the rock-fill body in the operation period and the earthquake period is prevented; meanwhile, the construction method is simple and easy for engineering implementation.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention provides a concrete panel rock-fill dam panel anti-seismic structure, which comprises a rock-fill dam cushion layer, a plastic concrete panel layer and a concrete panel, wherein the concrete panel layer is arranged on the concrete panel rock-fill dam cushion layer; a steel bar structure is arranged inside the concrete panel; the concrete panel is provided with a plurality of vertical parting joints a; the top parts of the vertical parting joints a are provided with flexible packing layers, the bottom parts of the vertical parting joints a are provided with mortar cushion layers a, and inserting plates a with T-shaped sections are placed in the vertical parting joints a; the bottom of the inserting plate a is inserted into the mortar cushion layer a and is fixed through a bolt 7; the top of the inserting plate a is fixedly connected with a steel bar structure; the plastic concrete panel layer is provided with a plurality of vertical parting joints b; the top parts of the vertical parting joints b are provided with anti-seepage plates, the bottom parts of the vertical parting joints b extend to the rock-fill dam cushion layer, and inserting plates b with T-shaped sections are placed in the vertical parting joints b; the bottom of the inserting plate b is fixed on a rock-fill dam cushion layer through a bolt, and the top of the inserting plate b is connected with the anti-seepage plate.
Preferably, the inserting plate b is clamped on the top of the anti-seepage plate.
Preferably, the distance between the inserting plate a and two sides of the vertical parting a is 5-10 mm.
Preferably, the distance between the inserting plate b and two sides of the vertical parting b is 5-10 mm.
Preferably, the height of the insert plate b is greater than that of the vertical parting b.
Preferably, the surface of the rock-fill dam cushion layer is coated with emulsified asphalt; the thickness of the emulsified asphalt is 0.2-0.4 m.
Preferably, the vertical slits a and the vertical slits b are arranged in a staggered manner.
Preferably, the construction method of the panel earthquake-resistant structure of the concrete panel rock-fill dam comprises the following steps:
the first step is as follows: filling a first-stage concrete panel rock-fill dam main body: firstly, filling a concrete face rockfill dam main body of a first stage according to a conventional face rockfill dam method, and arranging toe board water stop at the bottom of the upstream of the concrete face rockfill dam main body;
the second step is that: filling a second-stage concrete panel rock-fill dam main body: continuously filling a second-stage concrete panel rock-fill dam main body and a rock-fill dam cushion layer, after the filling is finished, pouring emulsified asphalt with the thickness of 0.2-0.4m on the rock-fill dam cushion layer, after the emulsified asphalt is dried, presetting the position of a vertical parting b to be reserved on the plastic concrete panel layer, and then fixedly installing a T-shaped inserting plate b at the position through a bolt; then, laying a plastic concrete panel layer in a plastic concrete pouring mode, and during pouring, paying attention to avoid the vertical parting b and the T-shaped inserting plate b; after the plastic concrete panel layer is laid and formed, laying and fixedly mounting an anti-seepage plate on the vertical parting b;
the third step: presetting the position of a vertical parting a to be reserved on a concrete panel on a plastic concrete panel layer, then laying a mortar cushion layer at the position, fixedly installing a T-shaped inserting plate a on the mortar cushion layer through bolts, and lapping a steel bar structure on the top of the inserting plate a for fixing; and finally, pouring concrete, wherein the vertical parting line a and the T-shaped inserting plate a are avoided during pouring, and after the concrete panel is dried, a flexible filling layer is arranged at the top of the vertical parting line a.
The invention provides a concrete panel rock-fill dam panel anti-seismic structure, which is characterized in that plastic concrete is laid between an original concrete panel and a rock-fill dam cushion layer to serve as an intermediate interlayer, so that the structural form of the panel with the stress applied during the operation period and the earthquake period of the panel improved by the plastic concrete is fully utilized, and the construction is efficiently and conveniently carried out on the engineering; especially, the plastic concrete is paved to effectively coordinate the deformation between the original concrete panel and the bedding material, thereby well improving the stress condition of the panel under the action of dead weight load and earthquake; in addition, the rock-fill dam cushion layer, the plastic concrete panel layer and the concrete panel are respectively connected through the inserting plate a and the inserting plate b, so that the phenomenon that the panel dam is difficult to generate a void phenomenon due to the fact that the panel dam is difficult to be coordinated with the rock-fill body in the operation period and the earthquake period is prevented; meanwhile, the construction method is simple and easy for engineering implementation.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of portion B of FIG. 1;
fig. 3 is an enlarged view of a portion a of fig. 1.
Description of reference numerals: the concrete-filled concrete slab comprises 1-a flexible filler layer, 2-a concrete panel, 3-a steel bar structure, 4-a plastic concrete panel layer, 5-a rock-fill dam cushion layer, 6-a mortar cushion layer, 7-bolts, 8-an inserting plate a, 9-a vertical parting line a, 10-an inserting plate b, 11-a vertical parting line b and 12-an anti-seepage plate.
Detailed Description
The following detailed description of one embodiment of the invention, it should be understood, however, that the scope of the invention is not limited by the embodiment;
a concrete panel rock-fill dam panel earthquake-resistant structure comprises a rock-fill dam cushion layer 5, a plastic concrete panel layer 4 and a concrete panel 2; a steel bar structure 3 is arranged inside the concrete panel 2; the concrete panel 2 is provided with a plurality of vertical parting a 9; the top of each vertical parting a9 is provided with a flexible filler layer 1, the bottom is provided with a mortar cushion a6, and an inserting plate a8 with a T-shaped section is arranged in the vertical parting a 9; the bottom of the insert plate a8 is inserted into the mortar cushion layer a6 and fixed by a bolt 7; the top of the insert plate a8 is fixedly connected with the steel bar structure 3; the plastic concrete panel layer 4 is provided with a plurality of vertical parting b 11; the top of the vertical parting joints b11 is provided with an impervious plate 12, the bottom of the vertical parting joints b11 extends to the rock-fill dam cushion 5, and an inserting plate b10 with a T-shaped section is arranged in the vertical parting joints b 11; the bottom of the inserting plate b10 is fixed on the rock-fill dam cushion layer 5 through a bolt 7, and the top is connected with the anti-seepage plate 12.
Preferably, the insert plate b10 is clamped on the top of the impermeable plate 12.
Preferably, the distance between the inserting plate a8 and two sides of the vertical parting a9 is 5-10 mm.
Preferably, the distance between the inserting plate b10 and two sides of the vertical parting b11 is 5-10 mm.
Preferably, the height of the inserting plate b10 is larger than that of the vertical parting b 11.
Preferably, the surface of the rock-fill dam cushion layer 5 is coated with emulsified asphalt; the thickness of the emulsified asphalt is 0.2-0.4 m.
Preferably, the vertical slits a9 are staggered with the vertical slits b 11.
Preferably, the construction method of the panel earthquake-resistant structure of the concrete panel rock-fill dam comprises the following steps:
the first step is as follows: filling a first-stage concrete panel rock-fill dam main body: firstly, filling a concrete face rockfill dam main body of a first stage according to a conventional face rockfill dam method, and arranging toe board water stop at the bottom of the upstream of the concrete face rockfill dam main body;
the second step is that: filling a second-stage concrete panel rock-fill dam main body: continuously filling the concrete panel rock-fill dam main body of the second level and the rock-fill dam cushion layer 5, after the filling is finished, pouring emulsified asphalt with the thickness of 0.2-0.4m on the rock-fill dam cushion layer 5, presetting the position of a vertical parting b11 to be reserved on the plastic concrete panel layer 4 after the emulsified asphalt is dried, and then fixedly installing a T-shaped inserting plate b10 at the position through a bolt 7; then, laying the plastic concrete panel layer 4 in a plastic concrete pouring mode, and during pouring, paying attention to avoid the vertical parting b11 and the T-shaped inserting plate b 10; after the plastic concrete panel layer 4 is laid and formed, the anti-seepage plate 12 is laid and fixedly installed on the vertical parting b 11;
the third step: presetting the position of a vertical parting a9 to be reserved on the concrete panel 2 on the plastic concrete panel layer 4, then laying a mortar cushion layer 6 at the position, fixedly installing a T-shaped inserting plate a8 on the mortar cushion layer 6 through a bolt 7, and lapping the steel bar structure 3 on the top of the inserting plate a8 for fixing; and finally, pouring concrete, wherein the concrete is poured while keeping away from the vertical parting a9 and the T-shaped insert plate a8, and after the concrete panel 4 is dried up, arranging the flexible filler layer 1 on the top of the vertical parting a 9.
The invention provides a concrete panel rock-fill dam panel anti-seismic structure, which is characterized in that plastic concrete is laid between an original concrete panel and a rock-fill dam cushion layer to serve as an intermediate interlayer, so that the structural form of the panel with the stress applied during the operation period and the earthquake period of the panel improved by the plastic concrete is fully utilized, and the construction is efficiently and conveniently carried out on the engineering; especially, the plastic concrete is paved to effectively coordinate the deformation between the original concrete panel and the bedding material, thereby well improving the stress condition of the panel under the action of dead weight load and earthquake; in addition, the rock-fill dam cushion layer, the plastic concrete panel layer and the concrete panel are respectively connected through the inserting plate a and the inserting plate b, so that the phenomenon that the panel dam is difficult to generate a void phenomenon due to the fact that the panel dam is difficult to be coordinated with the rock-fill body in the operation period and the earthquake period is prevented; meanwhile, the construction method is simple and easy for engineering implementation.
The above disclosure is only for the specific embodiment of the present invention, but the embodiment of the present invention is not limited thereto, and any variations that can be made by those skilled in the art should fall within the scope of the present invention.
Claims (8)
1. A concrete face rockfill dam panel earthquake-resistant structure is characterized by comprising a rockfill dam cushion layer (5), a plastic concrete face slab layer (4) and a concrete face slab (2); a steel bar structure (3) is arranged inside the concrete panel (2); the concrete panel (2) is provided with a plurality of vertical parting joints a (9); the mortar joint is characterized in that flexible packing layers (1) are arranged at the tops of the vertical parting joints a (9), mortar cushion layers a (6) are arranged at the bottoms of the vertical parting joints a (9), and inserting plates a (8) with T-shaped sections are placed in the mortar joint; the bottom of the insert plate a (8) is inserted into the mortar cushion layer a (6) and is fixed through a bolt (7); the top of the inserting plate a (8) is fixedly connected with the steel bar structure (3); the plastic concrete panel layer (4) is provided with a plurality of vertical parting joints b (11); the top parts of the vertical parting joints b (11) are provided with anti-seepage plates (12), the bottom parts of the vertical parting joints b (11) extend to the rock-fill dam cushion layer (5), and inserting plates b (10) with T-shaped sections are placed in the vertical parting joints b (11); the bottom of the inserting plate b (10) is fixed on a rock-fill dam cushion layer (5) through a bolt (7), and the top of the inserting plate b is connected with an anti-seepage plate (12).
2. A concrete faced rockfill dam panel seismic structure, according to claim 1, wherein said insert b (10) is clamped on top of the impervious sheet (12).
3. A concrete panel rock-fill dam panel seismic structure as claimed in claim 1, wherein said insert plate a (8) is spaced from both sides of vertical slit a (9) by a distance of 5-10 mm.
4. A concrete panel rock-fill dam panel seismic structure as claimed in claim 1, wherein said insert plate b (10) is spaced from both sides of the vertical slit b (11) by a distance of 5-10 mm.
5. A concrete panel rock-fill dam panel seismic structure as claimed in claim 1, wherein said insert plate b (10) has a height greater than the height of the vertical slit b (11).
6. The concrete faced rockfill dam panel earthquake-resistant structure according to claim 1, wherein the surface of said rockfill dam bed (5) is painted with emulsified asphalt; the thickness of the emulsified asphalt is 0.2-0.4 m.
7. A concrete panel rock-fill dam panel seismic structure as claimed in claim 1, wherein said vertical slits a (9) and b (11) are staggered.
8. A method of constructing a panel seismic structure for a concrete panel rock-fill dam as claimed in claim 1, comprising the steps of:
the first step is as follows: filling a first-stage concrete panel rock-fill dam main body: firstly, filling a concrete face rockfill dam main body of a first stage according to a conventional face rockfill dam method, and arranging toe board water stop at the bottom of the upstream of the concrete face rockfill dam main body;
the second step is that: filling a second-stage concrete panel rock-fill dam main body: continuously filling a second-stage concrete panel rock-fill dam main body and a rock-fill dam cushion layer (5), after the filling is finished, pouring emulsified asphalt with the thickness of 0.2-0.4m on the rock-fill dam cushion layer (5), presetting the position of a vertical parting b (11) to be reserved on the plastic concrete panel layer (4) after the emulsified asphalt is dried, and then fixedly installing a T-shaped inserting plate b (10) at the position through a bolt (7); then, a plastic concrete panel layer (4) is laid in a plastic concrete pouring mode, and the vertical parting b (11) and the T-shaped inserting plate b (10) are avoided during pouring; after the plastic concrete panel layer (4) is paved and formed, the anti-seepage plate (12) is paved and fixedly installed on the vertical parting b (11);
the third step: presetting the position of a vertical parting a (9) to be reserved on the concrete panel (2) on the plastic concrete panel layer (4), then laying a mortar cushion layer (6) at the position, fixedly installing a T-shaped inserting plate a (8) on the mortar cushion layer (6) through a bolt (7), and lapping the steel bar structure (3) on the top of the inserting plate a (8) for fixing; and finally, pouring concrete, wherein the vertical parting a (9) and the T-shaped inserting plate a (8) are avoided during pouring, and after the concrete panel (4) is dried, the flexible packing layer (1) is arranged at the top of the vertical parting a (9).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811067921.4A CN109113030B (en) | 2018-09-13 | 2018-09-13 | Concrete panel rock-fill dam panel seismic structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811067921.4A CN109113030B (en) | 2018-09-13 | 2018-09-13 | Concrete panel rock-fill dam panel seismic structure and construction method thereof |
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| CN109113030A CN109113030A (en) | 2019-01-01 |
| CN109113030B true CN109113030B (en) | 2020-11-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113404009B (en) * | 2021-07-15 | 2022-09-09 | 长江水利委员会长江科学院 | Novel concrete panel structure of rock-fill dam and construction method |
| CN115419019A (en) * | 2022-10-01 | 2022-12-02 | 广东中裕水电建设工程有限公司 | Seepage-proofing and reinforcing construction method for reservoir dam with staggered joints |
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|---|---|---|---|---|
| JPS58185806A (en) * | 1982-04-23 | 1983-10-29 | Yamamizu Sangyo Kk | Joint plate for revetment structure |
| CN102296571A (en) * | 2011-06-08 | 2011-12-28 | 西安理工大学 | Rock-fill dam of anchoring panel and construction method thereof |
| CN202989868U (en) * | 2012-11-02 | 2013-06-12 | 中国水电顾问集团华东勘测设计研究院 | Earthquake region high earth and rockfill dam earthquake resistance structure |
| CN103422473A (en) * | 2013-07-10 | 2013-12-04 | 大连理工大学 | Anti-seismic face plate structure for rock-fill dam with concrete face plate and method for constructing face plate anti-seismic structure |
| CN203684166U (en) * | 2013-11-20 | 2014-07-02 | 成都科创佳思科技有限公司 | Earthquake-resistant and water-proof structure for stone dam |
| CN205604266U (en) * | 2016-04-13 | 2016-09-28 | 山东省水利科学研究院 | River course or construction cofferdam bank protection |
-
2018
- 2018-09-13 CN CN201811067921.4A patent/CN109113030B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58185806A (en) * | 1982-04-23 | 1983-10-29 | Yamamizu Sangyo Kk | Joint plate for revetment structure |
| CN102296571A (en) * | 2011-06-08 | 2011-12-28 | 西安理工大学 | Rock-fill dam of anchoring panel and construction method thereof |
| CN202989868U (en) * | 2012-11-02 | 2013-06-12 | 中国水电顾问集团华东勘测设计研究院 | Earthquake region high earth and rockfill dam earthquake resistance structure |
| CN103422473A (en) * | 2013-07-10 | 2013-12-04 | 大连理工大学 | Anti-seismic face plate structure for rock-fill dam with concrete face plate and method for constructing face plate anti-seismic structure |
| CN203684166U (en) * | 2013-11-20 | 2014-07-02 | 成都科创佳思科技有限公司 | Earthquake-resistant and water-proof structure for stone dam |
| CN205604266U (en) * | 2016-04-13 | 2016-09-28 | 山东省水利科学研究院 | River course or construction cofferdam bank protection |
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