CN110904925A - Horizontal seam connecting structure adapting to extrusion deformation of thin panel - Google Patents
Horizontal seam connecting structure adapting to extrusion deformation of thin panel Download PDFInfo
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- CN110904925A CN110904925A CN201911333772.6A CN201911333772A CN110904925A CN 110904925 A CN110904925 A CN 110904925A CN 201911333772 A CN201911333772 A CN 201911333772A CN 110904925 A CN110904925 A CN 110904925A
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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
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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
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/54—Sealings for gates
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Abstract
The invention provides a horizontal joint connecting structure adapting to extrusion deformation of a thin panel, which comprises a concrete panel, a steel sleeve, a steel bar, a joint filling material, a water stopping copper sheet, a surface water stopping structure, asphalt hemp threads and a horizontal joint, wherein the concrete panel is provided with a plurality of steel pipes; the concrete panels are obliquely arranged, a horizontal seam is arranged between every two adjacent concrete panels in the transverse direction, the steel bars penetrate through the horizontal seam to connect the two adjacent concrete panels, and joint filling materials are arranged in the horizontal seam; steel sleeves are arranged on two sides of the horizontal seam, the steel sleeves are positioned in the concrete panel, the steel bars are positioned in the steel sleeves, and asphalt hemp threads are filled in the steel sleeves; the water-stopping structure is characterized in that a surface water-stopping structure is arranged on the upstream surface of the horizontal seam, and a water-stopping copper sheet is arranged at the bottom of the horizontal seam. The invention can meet the anti-seepage requirement, simultaneously remarkably reduce the possibility of damage to the vicinity of the horizontal seam due to the extrusion of the thin face plate, and ensure the safe operation of the concrete face plate in the high concrete face plate rock-fill dam.
Description
Technical Field
The invention relates to the technical field of water conservancy science dam workers, in particular to a horizontal joint connecting structure suitable for extrusion deformation of a thin panel.
Background
With the implementation of the hydropower strategy, a large number of high dams are built, under construction or to be built in the southwest and northwest areas where water energy resources are abundant. The earth-rock dam is the most common dam type in the current dam construction, is also the dam type which develops the fastest, and mainly comprises a homogeneous earth dam, a core wall dam, a concrete panel rock-fill dam and the like.
The concrete faced rockfill dam is a dam type which takes a rockfill dam body as a supporting structure and is provided with a thin concrete face slab as an anti-seepage structure on the upstream surface. The technology of the concrete panel rock-fill dam is rapidly developed in recent years, the current building level of the concrete panel rock-fill dam reaches 200m (the maximum dam height of the water distribution is 233 m), several 250-300 m-level panel dams are under design and research, however, the panels of the high concrete panel dams are long and cannot be poured at one time, horizontal seams are often required to be arranged, the horizontal seams can generate large displacement under the action of a high water head, the large displacement can cause bending deformation of reinforcing steel bars near the horizontal seams, and due to the fact that the concrete panels and the reinforcing steel bars are bonded together, the protective layer of the concrete panel near the horizontal seams can crack and peel off, and then the panels are damaged.
Disclosure of Invention
In order to solve the problems that a thin panel near the existing horizontal seam is seriously damaged and a steel bar is bent and deformed, the invention provides a horizontal seam connecting structure suitable for the extrusion deformation of the thin panel. The invention can meet the anti-seepage requirement, simultaneously remarkably reduce the possibility of damage to the vicinity of the horizontal joint due to the extrusion of the face plate, and ensure the safe operation of the concrete face plate in the high concrete face plate rock-fill dam.
The technical scheme adopted by the invention is as follows:
a horizontal joint connecting structure adapting to extrusion deformation of a thin panel comprises a concrete panel, a steel sleeve, a steel bar, a joint filling material, a water stop copper sheet, a surface water stop structure, asphalt hemp threads and a horizontal joint; the concrete panels are obliquely arranged, a horizontal seam is arranged between every two adjacent concrete panels in the transverse direction, the steel bars penetrate through the horizontal seam to connect the two adjacent concrete panels, and joint filling materials are arranged in the horizontal seam; steel sleeves are arranged on two sides of the horizontal seam, the steel sleeves are positioned in the concrete panel, the steel bars are positioned in the steel sleeves, and asphalt hemp threads are filled in the steel sleeves; the water-stopping structure is characterized in that a surface water-stopping structure is arranged on the upstream surface of the horizontal seam, and a water-stopping copper sheet is arranged at the bottom of the horizontal seam.
The number of the steel bars is at most two.
The length of the steel sleeve is 1 m.
The thickness range value of the concrete panel is as follows: 30cm-100 cm.
The concrete panel bottom be provided with the backing plate, the backing plate is located horizontal seam department, and the backing plate is located stagnant water copper sheet below.
The backing plate is a rubber backing plate.
The diameter of the steel sleeve is 1.1 times of that of the steel bar.
The width of the horizontal seam is 1-2 cm.
The thickness of the water stop copper sheet is 1.2 mm.
The joint filling material adopts composite asphalt filler.
The invention has the beneficial effects that:
the invention adopts the surface water stop structure on the upstream face of the concrete panel, the copper water stop sheet is arranged at the bottom of the concrete panel, and the rubber cushion plate is arranged below the copper water stop sheet, thereby meeting the anti-seepage requirement and ensuring the safe operation of the rock-fill dam with the high concrete panel.
According to the invention, the steel sleeve is sleeved on the steel bars near the horizontal joint and the sleeve is filled with asphalt hemp threads, so that the steel bars near the horizontal joint are separated from the concrete panel, and when the panel is subjected to water pressure to generate displacement, the steel bars near the horizontal joint can have a certain moving space and form a layer of barrier outside the steel bars, thereby avoiding the panel from being damaged due to the outward protrusion of the steel bars.
The invention adopts the composite asphalt filler for filling joints, can absorb the designed displacement value, reduces the displacement of the horizontal joint under the action of a high water head and reduces the deformation degree of the reinforcing steel bar.
The following will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the present invention as applied to a horizontal seam construction of a panel.
In the figure: 1. a concrete panel; 2. steel casing; 3. reinforcing steel bars; 4. a caulking material; 5. water stopping copper sheets; 6. a base plate; 7. a surface water stopping structure; 8. asphalt hemp threads; 9. and (7) horizontally sewing.
Detailed Description
Example 1:
in order to solve the problems that a thin panel near the existing horizontal seam is seriously damaged and a steel bar is bent and deformed, the invention provides a horizontal seam connecting structure which is suitable for the extrusion deformation of the thin panel and is shown in figures 1 and 2. The invention can meet the anti-seepage requirement, simultaneously remarkably reduce the possibility of damage to the vicinity of the horizontal joint due to the extrusion of the face plate, and ensure the safe operation of the concrete face plate in the high concrete face plate rock-fill dam.
A horizontal joint connection structure adapting to extrusion deformation of a thin panel comprises a concrete panel 1, a steel sleeve 2, a steel bar 3, a joint filling material 4, a water stop copper sheet 5, a surface water stop structure 7, asphalt hemp threads 8 and a horizontal joint 9; the concrete panels 1 are obliquely arranged, a horizontal seam 9 is arranged between every two adjacent concrete panels 1 in the transverse direction, the reinforcing steel bars 3 penetrate through the horizontal seam 9 to connect the two adjacent concrete panels 1, and gap filling materials 4 are arranged in the horizontal seams 9; two sides of the horizontal seam 9 are respectively provided with a steel sleeve 2, the steel sleeve 2 is positioned in the concrete panel 1, the steel bars 3 are positioned in the steel sleeve 2, and asphalt hemp threads 8 are filled in the steel sleeve 2; the water-stopping structure is characterized in that a surface water-stopping structure 7 is arranged on the upstream surface of the horizontal seam 9, and the water-stopping copper sheet 5 is arranged at the bottom of the horizontal seam 9.
According to the invention, the surface water stop structure 7 is adopted on the upstream surface of the concrete panel 1, and the copper water stop sheet 5 is arranged at the bottom of the concrete panel 1, so that the anti-seepage requirement is met, and the safe operation of the high concrete panel rock-fill dam is ensured.
The invention adopts the surface water stop structure 7 on the upstream side of the concrete panel 1, which can play the role of seepage prevention, and the form of the surface water stop structure 7 is as follows: the rubber rod is established to the seam, establishes rubber wave form waterstop on the rubber rod, and flexible material is filled in the space between the two, lays flexible material on the wave form waterstop, and the surface is sealed with reinforced rubber area, and the outside adopts the metal protection cover, packs the fly ash in the safety cover, and the safety cover adopts zinc-plated expansion bolts to fix to adopt banding agent banding.
According to the invention, the steel sleeve 2 is sleeved on the steel bar 3 near the horizontal joint 9, and the steel sleeve 2 is filled with the asphalt hemp threads 8, so that the steel bar 3 near the horizontal joint 9 is separated from the concrete panel 1, when the concrete panel 1 is subjected to water pressure to generate displacement, the steel bar 3 near the horizontal joint 9 can have a certain moving space, and a layer of barrier is formed outside the steel bar 3, so that the panel damage caused by the outward protrusion of the steel bar 3 is avoided.
The invention adopts the asphalt filler to joint the horizontal joint 9, and the asphalt filler can absorb the designed displacement value, thereby reducing the displacement of the horizontal joint under the action of high water head and reducing the deformation degree of the reinforcing steel bar.
Example 2:
based on embodiment 1, in this embodiment, the number of the reinforcing bars 3 is at most two.
The length of the steel sleeve 2 is 1 m.
The thickness range value of the concrete panel 1 is as follows: 30cm-100 cm.
The bottom of the concrete panel 1 is provided with a backing plate 6, the backing plate 6 is positioned at the horizontal seam 9, and the backing plate 6 is positioned below the water stop copper sheet 5.
The backing plate 6 is a rubber backing plate.
The diameter of the steel sleeve 2 is 1.1 times of that of the steel bar 3. The diameter of the steel sleeve 2 is larger than that of the steel bar 3, so that the steel bar 3 can move in the steel sleeve 2.
The width of the horizontal seam 9 is 1-2 cm.
The thickness of the water stop copper sheet 5 is 1.2 mm.
The joint filling material 4 adopts composite asphalt filler.
According to the invention, the horizontal joint 9 is arranged between two adjacent concrete panels 1, the joint filling material 4 is filled in the horizontal joint 9, and the filling of the joint filling material 4 reduces the displacement of the horizontal joint 9 under the action of a high water head and reduces the deformation degree of the steel bar 3.
The joint filling material 4 adopts the composite asphalt filling material, the composite asphalt filling material can prevent seepage and absorb the requirement of a design displacement value, the displacement of the horizontal joint 9 under the action of a high water head is reduced, and the deformation degree of the reinforcing steel bar 3 is reduced. According to the invention, a water-stopping copper sheet 5 is arranged at the bottom of a concrete panel 1, and a rubber backing plate 6 is arranged below the water-stopping copper sheet 5.
The invention adopts the surface water stop structure 7 on the upstream face of the concrete panel 1, the copper water stop sheet 5 is arranged at the bottom of the concrete panel 1, and the rubber cushion plate 6 is arranged under the water stop sheet 5, thereby meeting the anti-seepage requirement and ensuring the safe operation of the high concrete panel rock-fill dam.
According to the invention, the steel sleeve 2 is sleeved on the steel bar 3 near the horizontal joint 9, and the steel sleeve 2 is filled with the asphalt hemp threads 8, so that the steel bar 3 near the horizontal joint 9 is separated from the concrete panel 1, when the concrete panel 1 is subjected to water pressure to generate displacement, the steel bar 3 near the horizontal joint 9 can have a certain moving space, and a layer of barrier is formed outside the steel bar 3, so that the panel damage caused by the outward protrusion of the steel bar 3 is avoided. The invention adopts the composite asphalt filler to joint the horizontal joint 9, and the composite asphalt filler can absorb the designed displacement value, reduce the displacement of the horizontal joint 9 under the action of high water head and reduce the deformation degree of the reinforcing steel bar.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention. The devices and their structural components not described in detail in this embodiment are well known in the art and commonly used in the industry, and will not be described herein.
Claims (10)
1. The utility model provides an adaptation thin panel extrusion deformation's horizontal seam connection structure which characterized in that: the concrete waterproof structure comprises a concrete panel (1), a steel sleeve (2), a steel bar (3), a joint filling material (4), a water stop copper sheet (5), a surface water stop structure (7), asphalt hemp threads (8) and a horizontal joint (9); the concrete panels (1) are obliquely arranged, a horizontal seam (9) is arranged between every two adjacent concrete panels (1) in the transverse direction, the reinforcing steel bars (3) penetrate through the horizontal seam (9) to connect the two adjacent concrete panels (1), and a gap filling material (4) is arranged in the horizontal seam (9); two sides of the horizontal seam (9) are respectively provided with a steel sleeve (2), the steel sleeves (2) are positioned in the concrete panel (1), the steel bars (3) are positioned in the steel sleeves (2), and asphalt hemp threads (8) are filled in the steel sleeves (2); a surface water stopping structure (7) is arranged on the upstream surface of the horizontal seam (9), and the water stopping copper sheet (5) is arranged at the bottom of the horizontal seam (9).
2. A horizontal joint connection structure adapted to press deformation of a thin panel according to claim 1, wherein: the number of the steel bars (3) is at most two.
3. A horizontal joint connection structure adapted to press deformation of a thin panel according to claim 1, wherein: the length of the steel sleeve (2) is 1 m.
4. A horizontal joint connection structure adapted to press deformation of a thin panel according to claim 1, wherein: the thickness range value of the concrete panel (1) is as follows: 30cm-100 cm.
5. A horizontal joint connection structure adapted to press deformation of a thin panel according to claim 1, wherein: the concrete panel (1) bottom be provided with backing plate (6), backing plate (6) are located horizontal seam (9) department, and backing plate (6) are located stagnant water copper sheet (5) below.
6. A horizontal joint connection structure adapted to squeeze deformation of a thin panel according to claim 5, wherein: the backing plate (6) is a rubber backing plate.
7. A horizontal joint connection structure adapted to press deformation of a thin panel according to claim 1, wherein: the diameter of the steel sleeve (2) is 1.1 times of that of the steel bar (3).
8. A horizontal joint connection structure adapted to press deformation of a thin panel according to claim 1, wherein: the width of the horizontal seam (9) is 1-2 cm.
9. A horizontal joint connection structure adapted to press deformation of a thin panel according to claim 1, wherein: the thickness of the water stop copper sheet (5) is 1.2 mm.
10. A horizontal joint connection structure adapted to press deformation of a thin panel according to claim 1, wherein: the joint filling material (4) adopts composite asphalt filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911333772.6A CN110904925A (en) | 2019-12-23 | 2019-12-23 | Horizontal seam connecting structure adapting to extrusion deformation of thin panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911333772.6A CN110904925A (en) | 2019-12-23 | 2019-12-23 | Horizontal seam connecting structure adapting to extrusion deformation of thin panel |
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| Publication Number | Publication Date |
|---|---|
| CN110904925A true CN110904925A (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911333772.6A Pending CN110904925A (en) | 2019-12-23 | 2019-12-23 | Horizontal seam connecting structure adapting to extrusion deformation of thin panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114032849A (en) * | 2021-11-03 | 2022-02-11 | 中国电建集团西北勘测设计研究院有限公司 | Structure and construction method of horizontal permanent joint of concrete rock-fill dam face plate |
-
2019
- 2019-12-23 CN CN201911333772.6A patent/CN110904925A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114032849A (en) * | 2021-11-03 | 2022-02-11 | 中国电建集团西北勘测设计研究院有限公司 | Structure and construction method of horizontal permanent joint of concrete rock-fill dam face plate |
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