CN209741768U - Aqueduct indirect seam water stopping device for hydraulic engineering - Google Patents
Aqueduct indirect seam water stopping device for hydraulic engineering Download PDFInfo
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- CN209741768U CN209741768U CN201920282569.XU CN201920282569U CN209741768U CN 209741768 U CN209741768 U CN 209741768U CN 201920282569 U CN201920282569 U CN 201920282569U CN 209741768 U CN209741768 U CN 209741768U
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Abstract
The utility model relates to an indirect seam sealing device of aqueduct for hydraulic engineering, which is arranged in the seam between adjacent aqueduct bodies and comprises a first waterproof structure, a second waterproof structure and a third waterproof structure, wherein the first waterproof structure comprises sealing paste which is arranged at the outermost end of the seam; the second waterproof structure comprises an expansion rubber water stop strip, and the expansion rubber water stop strip is arranged below the sealing paste; the third waterproof structure comprises a red copper water stop sheet and a prepressing waterproof rubber, wherein a bent part is arranged in the middle of the red copper water stop sheet, a sealing rubber is covered on the bent part, asphalt hemp threads or expansion rubber is filled on the inner side of the bent part, and the prepressing waterproof rubber is arranged in a gap between the outer side of the bent part and the aqueduct; and a polyethylene joint sealing plate is also arranged below the third waterproof structure. The indirect seam sealing device of aqueduct for hydraulic engineering that provides among the above-mentioned technical scheme, construction convenience can effectively solve the problem that the current stagnant water mode exists leak, leak difficult repair after and to the temperature variation suitability is poor.
Description
Technical Field
The utility model relates to a hydraulic engineering technical field, concretely relates to indirect seam sealing device of aqueduct for hydraulic engineering.
Background
The aqueduct is an important water delivery building in the hydraulic engineering, and the joint water-stop component is used as a detailed structure and is related to the success or failure of the aqueduct design. The joint water stopping mode commonly used for aqueduct comprises: middle overlap embedded, adhesive, caulking butt joint and pressing plate. Wherein during overlap joint formula stagnant water is buried in the middle part is used for cast-in-place formula concrete aqueduct, buries the stagnant water spare at the in-process of pouring, and the stagnant water spare includes rubber or red copper stagnant water piece, but this kind of mode is because cast in situ concrete vibrates factor such as not closely knit, easily produces the seepage gap between concrete and stagnant water spare, and to the big area of four seasons difference in temperature, the seepage passageway between concrete and stagnant water spare also can be produced in the shrink of concrete in addition, hardly guarantees not to leak water. The adhesive type water stop adopts an adhesive to fix the water stop belt on concrete, requires that the concrete surface is very flat and compact, has high requirements on the adhesive, is greatly influenced by the working environment, and is difficult to ensure that the water stop belt does not leak water in the construction process, especially in northern areas with large four-season temperature difference. The caulking type water stop adopts a seam sealing material, such as polyvinyl chloride daub, the water stop form is effective in the early stage, water leakage is easy to generate along with the aging and damage of the material, and the material is not easy to replace. The pressing plate type water stop is a novel water stop form, the water stop effect of the pressing plate type water stop depends on factors such as flatness and fastening force of a fastening surface, special experimental study is carried out on the water stop effect, and for an area with large temperature difference change, the fastening surface and the fastening force change along with the shrinkage and expansion of temperature and concrete, and the structure is difficult to ensure to be watertight. Therefore, it is necessary to design a new technical solution to comprehensively solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a water stop device is sewed up indirectly to aqueduct for hydraulic engineering, construction convenience can effectively solve leaking, difficult repair after leaking that current stagnant water mode exists and the problem poor to the temperature variation suitability.
In order to solve the technical problem, the utility model discloses a following technical scheme:
An indirect aqueduct seam water stopping device for hydraulic engineering is arranged in a seam between adjacent aqueduct bodies and comprises a first waterproof structure, a second waterproof structure and a third waterproof structure, wherein the first waterproof structure comprises sealing paste which is arranged at the outermost end of the seam; the second waterproof structure comprises an expansion rubber water stop strip, and the expansion rubber water stop strip is arranged below the sealing paste; the third water prevention structure comprises a red copper water stop sheet and a pre-pressed water stop rubber, a bent part is arranged in the middle of the red copper water stop sheet, a sealing rubber is covered on the bent part, asphalt hemp threads or expanded rubber is filled on the inner side of the bent part, and the pre-pressed water stop rubber is arranged in a gap between the outer side of the bent part and the aqueduct; and a polyethylene joint sealing plate is further arranged below the third waterproof structure.
Further, the sealant is polysulfide sealant.
The water-stopping rubber is a P-type water-stopping rubber or an L-type water-stopping rubber.
According to a further scheme, the head end of the bent part of the red copper water stop sheet is arc-shaped, and the sealing rubber is arranged on the outer side of the head end of the bent part of the red copper water stop sheet.
The aqueduct indirect seam water stopping device for the hydraulic engineering comprises a first waterproof structure, a second waterproof structure and a third waterproof structure, wherein sealing paste with good adhesion to metal and concrete is adopted as the first waterproof structure and is in direct contact with a water body, so that good air tightness and water resistance can be kept under continuous expansion, vibration and temperature change; the expanded rubber water stop strip is used as a second waterproof structure, and the expanded rubber water stop strip expands after meeting water, so that the aim of further stopping water can be fulfilled; the red copper water stop sheet and the water stop rubber are adopted as a third water prevention structure, residual water permeating from the second water prevention structure can be effectively prevented, and finally water seepage resistance between the polyethylene joint strip and the aqueduct body is increased through the polyethylene joint strip, so that water seepage is effectively weakened. Namely hydraulic engineering uses indirect stagnant water device that sews up of aqueduct, belong to self-adaptation inflation stagnant water device, can effectively solve the indirect stagnant water problem of sewing up of aqueduct to and the problem of leaking of stagnant water under the big temperature difference.
Drawings
Fig. 1 is a schematic structural view of an embodiment 1 of the water stopping device for the joint between aqueducts in the hydraulic engineering of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is a schematic structural view of an embodiment 2 of the water stopping device for the joint between aqueducts in the hydraulic engineering of the present invention;
Fig. 4 is an enlarged view at B in fig. 3.
In the figure: 1. a tank body; 2. red copper water stop sheets; 21. a bending section; 3. asphalt hemp threads; 3' expanded rubber; 4. an expanded rubber water stop bar; 5. sealing paste; 6. a sealing rubber; 7. a water-stopping rubber; 8. polyethylene joint sealing plates; 9. a platform beam; 10. and (6) pouring the pile.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention will be described in detail with reference to the following embodiments. It is to be understood that the following text is only intended to describe one or several particular embodiments of the invention, and does not strictly limit the scope of the claims specifically claimed.
Example 1
The technical scheme that this embodiment was adopted is shown in fig. 1, 2, and an aqueduct indirect seam sealing device for hydraulic engineering sets up in the seam between adjacent aqueduct body 1, including first waterproof construction, second waterproof construction and third waterproof construction, first waterproof construction includes polysulfide sealant 5, and polysulfide sealant 5 sets up the outermost end at the seam, and aqueduct body 1 is crossed the water back, and the seam directly contacts with the water, and polysulfide sealant is an auxiliary anti-seepage material, has good adhesion to materials such as metal and concrete, keeps good gas tightness and waterproof nature under continuous flexible, vibration and the temperature variation. The second waterproof construction includes inflation rubber sealing rod 4, and inflation rubber sealing rod 4 sets up in the below of sealing compound 5, and inflation rubber sealing rod 4 has corrosion resistance, meets the water back rubber inflation, can reach the purpose of further stagnant water. The inflation of each position of inflation rubber sealing rod 4 of second waterproof construction meeting water back may be inhomogeneous, lead to still having partial infiltration to pass through, consequently set up third water-stopping structure, third water-stopping structure includes red copper sealing-up piece 2 and pre-compaction P type stagnant water rubber 7, red copper sealing-up piece 2's middle part is provided with kink 21, kink 21's head end is arc, sealing rubber 6 sets up the outside at red copper sealing-up piece 2 kink 21 head end, kink 21 inboard packing has pitch hemp silk 3, be provided with the P type stagnant water rubber 7 of pre-compaction in the kink 21 outside and the clearance of aqueduct. Because the expansion rubber water stop strip 4 expands, part of expansion force acts on the head arc area of the red copper water stop strip 2 to extrude and expand the arc area, and the sealing rubber 6 tightly presses the aqueduct body 1 to prevent water; when the aqueduct body 1 is not shrunk by temperature reduction, the P-type water-stopping rubber without prepressing amount has no water-stopping effect, so that the P-type water-stopping rubber is prepressed properly for improving the water-stopping effect to make up for the gap water leakage between the red copper water-stopping sheet and the concrete caused by the incompact vibration of the concrete and the like. Wherein, the P-shaped water-stopping rubber 7 and the sealing rubber 6 are connected with the red copper water-stopping sheet 2 by bolts.
In addition, a polyethylene joint sealing plate 8 is arranged below the third water prevention structure, has the advantages of low water absorption rate, good permeability resistance and the like, and can increase water seepage resistance (between the plate and the aqueduct body) and weaken water seepage.
When the aqueduct body 1 shrinks due to temperature drop, the aqueduct body 1, the sealing paste 5 and the expanded rubber water stop strip 4 are gradually separated, and water flows enter from the contact seam. The polysulfide sealant 5 can be properly closed after the gap is enlarged due to the rheological property of the polysulfide sealant, but cannot be completely closed due to the action of water pressure; the expansion rubber water stop 4 expands when meeting water, the expansion amount is determined by the characteristics of the expansion rubber water stop, the expansion amount can be determined according to the contraction amount of the tank body 1 in the early stage, and the expansion rubber further fills the contraction joint; the expansion rubber water stop 4 generates an expansion acting force, the acting force acts on the arc-shaped head of the red copper water stop sheet 2 to cause the head to deform so as to press the head sealing rubber 6 to the aqueduct body 1, the design and the size of the head are determined according to test or simulation calculation in the early stage (the part belongs to a conventional means, is initially selected and then determined through numerical simulation and the like), and the expansion amount, the deformation amount of the head and the contraction amount of the expansion rubber water stop 4 are combined and considered for unified design.
After the aqueduct body 1 contracts, the P-shaped water stop rubber 7 at the bending part 21 of the red copper water stop sheet 2 is stretched by the red copper water stop sheet 2 to press the aqueduct body 1 tightly, and the larger the contraction amount is, the more the rubber is pressed tightly, the better the water stop is.
example 2
The technical scheme of this embodiment is as shown in fig. 3, 4, and an indirect aqueduct seam sealing device for hydraulic engineering is arranged in a seam between adjacent aqueduct bodies 1, and includes a first waterproof structure, a second waterproof structure and a third waterproof structure, where the first waterproof structure includes polysulfide sealant 5, the polysulfide sealant 5 is arranged at the outermost end of the seam, and after the aqueduct bodies 1 are flushed with water, the seam is in direct contact with a water body, and the polysulfide sealant is an auxiliary anti-seepage material, and has good adhesion to materials such as metal and concrete, and maintains good air tightness and water resistance under continuous stretching, vibration and temperature change. The second waterproof construction includes inflation rubber sealing rod 4, and inflation rubber sealing rod 4 sets up in the below of sealing compound 5, and inflation rubber sealing rod 4 has corrosion resistance, meets the water back rubber inflation, can reach the purpose of further stagnant water. The expansion rubber sealing strip 4 of second waterproof construction meets water the inflation of each position probably inhomogeneous after, lead to still having partial infiltration to pass through, consequently set up third water-proofing structure, third water-proofing structure includes red copper sealing-up piece 2 and prepressing P type stagnant water rubber 7, red copper sealing-up piece 2's middle part is provided with kink 21, kink 21's head end is arc, sealing rubber 6 sets up the outside at red copper sealing-up piece 2 kink 21 head end, kink 21 inboard packing has expansion rubber 3 ', be provided with prepressing P type stagnant water rubber 7 in the clearance of kink 21 outside and aqueduct. Because the expansion rubber water stop strip 4 expands, part of expansion force acts on the head arc area of the red copper water stop strip 2 to extrude and expand the arc area, and the sealing rubber 6 tightly presses the aqueduct body 1 to prevent water; when the aqueduct body 1 is not shrunk by temperature reduction, the P-type water-stopping rubber without prepressing amount has no water-stopping effect, so that the P-type water-stopping rubber is prepressed properly for improving the water-stopping effect to make up for the gap water leakage between the red copper water-stopping sheet and the concrete caused by the incompact vibration of the concrete and the like. Wherein, the P-shaped water-stopping rubber 7 and the sealing rubber 6 are connected with the red copper water-stopping sheet 2 by bolts.
In addition, a polyethylene joint sealing plate 8 is arranged below the third water prevention structure, has the advantages of low water absorption rate, good permeability resistance and the like, and can increase water seepage resistance (between the plate and the aqueduct body 1) and weaken water seepage.
When the aqueduct body 1 shrinks due to temperature drop, the aqueduct body 1 is gradually separated from the sealing paste, the expansion rubber water stop strip 4 and the like, and water flows enter from the contact seam. The polysulfide sealant 5 can be properly closed after the gap is enlarged due to the rheological property of the polysulfide sealant, but cannot be completely closed due to the action of water pressure; the expansion rubber water stop 4 expands when meeting water, the expansion amount is determined by the characteristics of the expansion rubber water stop, the expansion amount can be determined according to the contraction amount of the tank body 1 in the early stage, and the expansion rubber further fills the contraction joint; the expansion rubber water stop 4 generates an expansion acting force, the acting force acts on the arc-shaped head of the red copper water stop sheet 2 to cause the head to deform so as to press the head sealing rubber 6 to the aqueduct tank body 1, the design and the size of the head are determined according to test or simulation calculation (the part belongs to a conventional means, is initially selected and then is determined through numerical simulation and the like), and the expansion amount, the deformation amount of the head and the contraction amount of the expansion rubber water stop 4 are combined and considered for unified design.
After the aqueduct body 1 contracts, the P-shaped water stop rubber 7 at the bending part 21 of the red copper water stop sheet 2 is stretched by the red copper water stop sheet 2 to press the aqueduct body 1 tightly, and the larger the contraction amount is, the more the rubber is pressed tightly, and the better the water stop is. Meanwhile, a contraction joint is generated between the polyethylene joint-filling plate 8 and the aqueduct, and water can be seeped. At this time, water which is permeated by the red copper water stop sheet 2 enters the inside of the red copper water stop sheet 2, and the expansion rubber 3' on the inner side of the bending part 21 absorbs water to expand to further press the P-type water stop rubber 7 to enhance the water stop effect.
and (4) supplementary notes: 1. the red copper water stop sheets in examples 1 and 2 were 1.5mm thick; the use method and the principle of the L-shaped water stop rubber and the P-shaped water stop rubber are consistent; 3. the head end of the bent part of the red copper water stop sheet can be in other shapes (such as an ellipse or a parabola) according to the actual and deformation requirements; 4. in the figure the arrows point in the direction of the water flow; 5. a bearing platform beam 9 and a cast-in-place pile 10 are arranged below the aqueduct body; 6. the height (mm) of the sealing paste, the length (mm) of the cantilever of the red copper sheet, the folding length (mm) of the red copper sheet and the height (mm) in the seam of the red copper sheet in the embodiments 1 and 2 are determined according to the temperature drop shrinkage of the aqueduct body and the width of the seam (the technical specification of the waterstop of the hydraulic building and the design specification of a sluice can be referred to in the specification DLT5215-2005, the temperature drop shrinkage adopts the product of the temperature expansion coefficient of concrete, the temperature difference and the length of the aqueduct body, and the width of the seam is larger than the temperature drop shrinkage, and meanwhile, the construction convenience in the seam is considered).
The above detailed description of the embodiments of the present invention has been provided with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and those skilled in the art can make several equivalent transformations and substitutions without departing from the principles of the present invention after learning the contents of the present invention.
Claims (4)
1. The utility model provides an indirect seam sealing device of aqueduct for hydraulic engineering, sets up in the seam between adjacent aqueduct groove body (1), its characterized in that: the waterproof structure comprises a first waterproof structure, a second waterproof structure and a third waterproof structure, wherein the first waterproof structure comprises sealing paste (5), and the sealing paste (5) is arranged at the outermost end of a seam; the second waterproof structure comprises an expansion rubber water stop strip (4), and the expansion rubber water stop strip (4) is arranged below the sealing paste (5); the third water prevention structure comprises a red copper water stop sheet (2) and a pre-pressed water stop rubber (7), a bent part (21) is arranged in the middle of the red copper water stop sheet (2), a sealing rubber (6) is covered on the bent part (21), asphalt hemp threads (3) or expanded rubber (3') are filled on the inner side of the bent part (21), and the pre-pressed water stop rubber (7) is arranged in a gap between the outer side of the bent part (21) and the aqueduct; and a polyethylene joint sealing plate (8) is further arranged below the third waterproof structure.
2. The aqueduct indirect seam water stopping device for the hydraulic engineering as claimed in claim 1, which is characterized in that: the sealing paste (5) is polysulfide sealing paste.
3. The aqueduct indirect seam water stopping device for the hydraulic engineering as claimed in claim 1, which is characterized in that: the water stop rubber (7) is a P-shaped water stop rubber or an L-shaped water stop rubber.
4. The aqueduct indirect seam water stopping device for the hydraulic engineering as claimed in claim 1, which is characterized in that: the head end of the bending part (21) of the red copper water stop sheet (2) is arc-shaped, and the sealing rubber (6) is arranged on the outer side of the head end of the bending part (21) of the red copper water stop sheet (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920282569.XU CN209741768U (en) | 2019-03-06 | 2019-03-06 | Aqueduct indirect seam water stopping device for hydraulic engineering |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920282569.XU CN209741768U (en) | 2019-03-06 | 2019-03-06 | Aqueduct indirect seam water stopping device for hydraulic engineering |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706891A (en) * | 2019-03-06 | 2019-05-03 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of hydraulic engineering aqueduct seam antipriming |
| CN111663502A (en) * | 2020-06-23 | 2020-09-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Spillway structure on deep overburden layer |
| CN114592481A (en) * | 2022-03-23 | 2022-06-07 | 重庆交通大学 | Ship lock chamber prestress water stop structure and construction method thereof |
-
2019
- 2019-03-06 CN CN201920282569.XU patent/CN209741768U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706891A (en) * | 2019-03-06 | 2019-05-03 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of hydraulic engineering aqueduct seam antipriming |
| CN109706891B (en) * | 2019-03-06 | 2024-03-15 | 水利部交通运输部国家能源局南京水利科学研究院 | Joint sealing device between aqueducts for hydraulic engineering |
| CN111663502A (en) * | 2020-06-23 | 2020-09-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Spillway structure on deep overburden layer |
| CN114592481A (en) * | 2022-03-23 | 2022-06-07 | 重庆交通大学 | Ship lock chamber prestress water stop structure and construction method thereof |
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