CN103835379A - Combined water stop system of waterproof concrete wall - Google Patents
Combined water stop system of waterproof concrete wall Download PDFInfo
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- CN103835379A CN103835379A CN201410111373.6A CN201410111373A CN103835379A CN 103835379 A CN103835379 A CN 103835379A CN 201410111373 A CN201410111373 A CN 201410111373A CN 103835379 A CN103835379 A CN 103835379A
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Abstract
A combined water stop system of a waterproof concrete wall comprises a centrally-buried type water stop belt and a water swelling water stop rod. The centrally-buried type water stop belt is fixed to a framework of steel reinforcement of the waterproof concrete wall, located in the middle of the framework of steel reinforcement of the waterproof concrete wall in the thickness direction, and stretches from one end of a horizontal construction joint of the waterproof concrete wall to the other end of the horizontal construction joint, and the center, in the width direction, of the centrally-buried type water stop belt and the horizontal construction joint of the waterproof concrete wall are at the same height. The water swelling water stop rod is fixed to a concrete interface on the lower portion of the horizontal construction joint of the waterproof concrete wall and stretches from one end of the horizontal construction joint of the waterproof concrete wall to the other end of the horizontal construction joint. The combined water stop system of the waterproof concrete wall can solve the problem of waterproofing for the structure of the large waterproof concrete wall under the action of extra large head pressure.
Description
Technical field
The present invention relates to a kind of waterproofing system, relate to specifically a kind of concrete wall waterproofing system.
Background technology
Waterproof concrete wall structure generally need arrange horizontal construction joint in the time of construction on wall, it is the basic assurance of guaranteeing waterproof concrete quality that the water-stopping system of economical rationality good water-proof effect is selected at horizontal construction joint place, wall construction horizontal construction joint waterproofing system mainly adopts ribbet sealing and middle buried water stop water-stopping system at present, ribbet sealing is by spill or convex seam are set at wall middle part, the head pressure that extends infiltration route reduction back side reaches the object of sealing, in buried water-stopping system be in waterproof concrete wall structure construction horizontal construction joint place adopt main sealing system, it is embedded in concrete and is closely connected with concrete, reduce the head pressure of back side and reach the object of sealing by the prolongation route that seeps water.
The construction technology of ribbet sealing is comparatively economical, but waterproof effect is not good, the waterproof concrete wall structure ribbet sealing that particularly head height exceedes 2m is difficult to reach waterproof requirement, and ribbet Baltimore groove place concrete is difficult for vibration compacting or convex seam is fragile, and construction quality is difficult to ensure card.The principal mode of middle buried water stop water-stopping system buried rubber fastening band in burying underground, in buried steel plate water stopper and expansion sealing strip etc., rubber fastening band waterproof effect is better, and retractility is better, but joint intractability is large, affected by environment large, in construction, easily damage; Steel plate water stopper good water-proof effect, constructs easier, not fragile, but retractility is poor, and corner, joint welding difficulty is large; Water-swellable sealing rod is to utilize the water-swellable performance of sealing rod to strengthen the watertightness between new-old concrete, good water-proof effect, and easy construction, but sealing rod speed of expansion is slower, and expansion rate is limited.Head height be less than 6m medium-sized important waterproof concrete wall structure can according to site environment feature, design feature and head pressure etc. select single in buried sealing pattern, small-scale structure can adopt ribbet sealing.Exceed the large-scale waterproof concrete wall structurally waterproof of 6m for head height, during single employing is a kind of, buried waterproof measure is difficult to ensure the waterproof effect of waterproof concrete wall structure.
Summary of the invention
The object of this invention is to provide a kind of waterproof concrete wall combination water-stopping system, it can solve the waterproof problem of the large-scale waterproof concrete wall structure under the effect of super large head pressure.
To achieve these goals, technical solution of the present invention is: a kind of waterproof concrete wall combination water-stopping system, comprise middle buried water stop, water-swellable sealing rod, described middle buried water stop is fixed on the cage of reinforcement of waterproof concrete wall, and described middle buried water stop is positioned at the middle part of the cage of reinforcement through-thickness of waterproof concrete wall, middle buried water stop extends to the other end from one end of the horizontal construction joint of waterproof concrete wall, and the centre-height of middle buried water stop broad ways is consistent with the height of the horizontal construction joint of waterproof concrete wall, described water-swellable sealing rod is fixed on the bottom concrete interface at horizontal construction joint place of waterproof concrete wall, and water-swellable sealing rod extends to the other end from one end of the horizontal construction joint of waterproof concrete wall, water-swellable sealing rod is positioned at a side of the close upstream face in middle part of waterproof concrete wall through-thickness.
Waterproof concrete wall combination water-stopping system of the present invention, wherein, described middle buried water stop is steel plate water stopper.
Waterproof concrete wall combination water-stopping system of the present invention, wherein, described middle buried water stop is rubber fastening band.
Waterproof concrete wall combination water-stopping system of the present invention, wherein, described water-swellable sealing rod is rubber water-proof bar.
Waterproof concrete wall combination water-stopping system of the present invention, wherein, described water-swellable sealing rod is pasted on concrete interface by bonding adhesive.
Waterproof concrete wall combination water-stopping system of the present invention, wherein, described water-swellable sealing rod is fixed on concrete interface by screw.
Waterproof concrete wall combination water-stopping system of the present invention, wherein, the spacing between described water-swellable sealing rod and middle buried water stop is more than or equal to 50mm, and water-swellable sealing rod is more than or equal to 50mm apart from the distance of wall concrete upstream face external surface.
Waterproof concrete wall combination water-stopping system of the present invention, wherein, described middle buried water stop adopts bar dowel to fix, one end of bar dowel is welded on the middle part of described middle buried water stop broad ways, the other end is welded on cage of reinforcement, and bar dowel interlaced arrangement on middle buried water stop two sides.
Adopt after such scheme, because waterproof concrete wall combination water-stopping system of the present invention comprises middle buried water stop, water-swellable sealing rod, therefore in the situation that concrete thickness is certain, by being set, two pass water-stopping system increases the head pressure of infiltration route reduction back side, improve the waterproof effect of waterproof concrete wall, and middle buried water stop is positioned at the middle part of the cage of reinforcement through-thickness of waterproof concrete wall, water-swellable sealing rod is positioned at the middle part of waterproof concrete wall through-thickness near a side of upstream face, bear after hydraulic pressure at waterproof concrete, the first water-swellable of water-swellable sealing rod, because water-swellable sealing rod wraps up concrete around, limit the expansion space of water-swellable sealing rod, water-swellable sealing rod is contacted tightr with concrete, after water-swellable sealing rod, hydraulic pressure weakens, after middle buried water stop, hydraulic pressure further reduces again, further improve waterproof effect.
In addition, spacing between water-swellable sealing rod and middle buried water stop is more than or equal to 50mm, water-swellable sealing rod should be more than or equal to 50mm apart from the distance of wall concrete upstream face external surface, guarantee that the concrete thickness wrapping up around water-swellable sealing rod is enough, improve the compactness of water-swellable sealing rod surrounding concrete in building, improve waterproof effect.
Brief description of the drawings
Fig. 1 is the sectional view of waterproof concrete wall combination water-stopping system of the present invention.
Detailed description of the invention
As shown in Figure 1, waterproof concrete wall combination water-stopping system of the present invention comprises middle buried water stop 11, water-swellable sealing rod 13, middle buried water stop 11 is steel plate water stopper, water-swellable sealing rod 13 adopts rubber water-proof bar, its volume water-swellable rate should be not less than 150%, middle buried water stop 11 adopts bar dowel to be fixed on the cage of reinforcement in waterproof concrete wall 21, one end of bar dowel is welded on the middle part of middle buried water stop broad ways, the other end is welded on cage of reinforcement, and bar dowel is interlaced arrangement on middle buried water stop two sides, the spacing of adjacent two bar dowels is 1m left and right, middle buried water stop joint adopts overlap welding joint, lap length is not less than 50mm, middle buried water stop 11 is positioned at the middle part of the cage of reinforcement through-thickness of waterproof concrete wall 21, waterproof concrete wall 21 both sides are respectively formwork bracing systems 23, 24, middle buried water stop 11 extends to the other end from one end of the horizontal construction joint 22 of waterproof concrete wall, the center of middle buried water stop 11 broad ways is consistent with the height of the horizontal construction joint 22 of waterproof concrete wall, water-swellable sealing rod is coated with one deck bonding adhesive on 13 bottom surfaces, on concrete interface, scribble bonding adhesive, water-swellable sealing rod 13 is pasted on the bottom concrete interface at horizontal construction joint 22 places of waterproof concrete wall, and water-swellable sealing rod 13 extends to the other end from one end of the horizontal construction joint 22 of waterproof concrete wall, water-swellable sealing rod 13 is positioned at a side of the close upstream face in middle part of waterproof concrete wall through-thickness.In employing after buried water stop 11, water-swellable sealing rod 13, waterproof concrete bears after hydraulic pressure, water-swellable sealing rod 13 water-swellables at horizontal construction joint place, because water-swellable sealing rod 13 all wraps up concrete around, limit the expansion space of water-swellable sealing rod 13, water-swellable sealing rod 13 is contacted tightr with concrete, after water-swellable sealing rod 13, hydraulic pressure weakens gradually, after middle buried water stop 11, hydraulic pressure further reduces again, thus the waterproof effect of the constuction joint of further improving the standard.
Middle buried water stop 11 also can adopt rubber fastening band, rubber fastening band is fixed on the cage of reinforcement in waterproof concrete wall, multiple holes are respectively worn in upper and lower rubber fastening band edge, in hole, wear iron wire, by iron wire, by rubber fastening band and cage of reinforcement drawknot, the spacing of 2 drawknot points is 1m left and right, upper and lower drawknot point staggers mutually, the joint of two rubber fastening bands adopts butt welded joint, and in addition, water-swellable sealing rod 13 also can be fixed on concrete interface by high-strength screw.
For making waterproof effect better, spacing between water-swellable sealing rod 13 and middle buried water stop 11 should be more than or equal to 50mm, water-swellable sealing rod 13 should be more than or equal to 50mm apart from the distance of wall concrete upstream face external surface, enough to guarantee the concrete thickness wrapping up around water-swellable sealing rod 13, improve the compactness of water-swellable sealing rod surrounding concrete in building.
Water-swellable sealing rod 13 is as needed spreading, and joint overlaps mutually, and lap length is not less than 50mm.
Middle buried water stop 11 is before waterproof concrete wall substructure pouring concrete, be arranged on wall construction cage of reinforcement according to the height of horizontal construction joint, waterproof concrete wall substructure pouring concrete is to the position of horizontal construction joint 22, after concrete initial set, horizontal construction joint 22 dabbing cleanings are processed, horizontal construction joint 22 is processed, after dry, before wall construction reinforcing bar template is installed, water-swellable sealing rod 13 is fixed on to horizontal construction joint middle part upstream face one side, before pouring concrete, water-swellable sealing rod 13 should avoid contacting premature inflation with water affects stagnant water effect, after cast, water-swellable sealing rod 13 is closely wrapped in more than 22 structural concrete of waterproof concrete wall horizontal construction joint.
The above embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention, all should fall in the definite protection domain of claims of the present invention.
Claims (8)
1. a waterproof concrete wall combination water-stopping system, it is characterized in that: comprise middle buried water stop (11), water-swellable sealing rod (13), described middle buried water stop (11) is fixed on the cage of reinforcement of waterproof concrete wall (21), and described middle buried water stop (11) is positioned at the middle part of the cage of reinforcement through-thickness of waterproof concrete wall (21), middle buried water stop (11) extends to the other end from one end of the horizontal construction joint (22) of waterproof concrete wall, and the centre-height of middle buried water stop (11) broad ways is consistent with the height of the horizontal construction joint (22) of waterproof concrete wall, described water-swellable sealing rod (13) is fixed on the bottom concrete interface that the horizontal construction joint (22) of waterproof concrete wall locates, and water-swellable sealing rod (13) extends to the other end from one end of the horizontal construction joint (22) of waterproof concrete wall, water-swellable sealing rod (13) is positioned at a side of the close upstream face in middle part of waterproof concrete wall through-thickness.
2. waterproof concrete wall combination water-stopping system as claimed in claim 1, is characterized in that: described middle buried water stop (11) is steel plate water stopper.
3. waterproof concrete wall combination water-stopping system as claimed in claim 1, is characterized in that: described middle buried water stop (11) is rubber fastening band.
4. waterproof concrete wall combines water-stopping system as claimed in claim 2 or claim 3, it is characterized in that: described water-swellable sealing rod (13) is rubber water-proof bar.
5. waterproof concrete wall combination water-stopping system as claimed in claim 4, is characterized in that: described water-swellable sealing rod (13) is pasted on concrete interface by bonding adhesive.
6. waterproof concrete wall combination water-stopping system as claimed in claim 4, is characterized in that: described water-swellable sealing rod (13) is fixed on concrete interface by screw.
7. the combination of the waterproof concrete wall as described in claim 5 or 6 water-stopping system, it is characterized in that: the spacing between described water-swellable sealing rod (13) and middle buried water stop (11) is more than or equal to 50mm, and water-swellable sealing rod (13) is more than or equal to 50mm apart from the distance of wall concrete upstream face external surface.
8. waterproof concrete wall combination water-stopping system as claimed in claim 7, it is characterized in that: described middle buried water stop (11) adopts bar dowel to fix, one end of bar dowel is welded on the middle part of described middle buried water stop broad ways, the other end is welded on cage of reinforcement, and bar dowel interlaced arrangement on middle buried water stop two sides.
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CN201410111373.6A CN103835379A (en) | 2014-03-24 | 2014-03-24 | Combined water stop system of waterproof concrete wall |
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CN201410111373.6A CN103835379A (en) | 2014-03-24 | 2014-03-24 | Combined water stop system of waterproof concrete wall |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106948844A (en) * | 2017-05-08 | 2017-07-14 | 谌成勋 | Waterstop and building structure |
CN109488344A (en) * | 2018-10-29 | 2019-03-19 | 中铁十二局集团有限公司 | Subway waterstop waterproof construction method |
CN110067311A (en) * | 2019-05-14 | 2019-07-30 | 长江勘测规划设计研究有限责任公司 | The connection structure and method of new-old concrete component junction |
CN110158542A (en) * | 2019-06-17 | 2019-08-23 | 中国电建集团华东勘测设计研究院有限公司 | The Lossless connection structure and construction method of cut-pff wall and nut cap concrete |
CN114856008A (en) * | 2022-05-24 | 2022-08-05 | 中建八局第三建设有限公司 | Building outer wall root waterproof construction |
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CN201850660U (en) * | 2010-11-09 | 2011-06-01 | 中国核工业华兴建设有限公司 | Mounting structure of rubber water-stop |
CN201908363U (en) * | 2010-12-22 | 2011-07-27 | 中国建筑第六工程局有限公司 | Durable water stop structure at joint between new and old concrete |
CN203008144U (en) * | 2013-01-11 | 2013-06-19 | 李�杰 | Construction joint waterproof structure |
JP5355526B2 (en) * | 2010-10-13 | 2013-11-27 | 中国電力株式会社 | Water stop plate |
CN203755469U (en) * | 2014-03-24 | 2014-08-06 | 中国化学工程第三建设有限公司 | Waterproof concrete wall combined water stopping system |
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CN101298790A (en) * | 2008-05-27 | 2008-11-05 | 葛加君 | Rubber water stop U anchor construction method |
JP5355526B2 (en) * | 2010-10-13 | 2013-11-27 | 中国電力株式会社 | Water stop plate |
CN201850660U (en) * | 2010-11-09 | 2011-06-01 | 中国核工业华兴建设有限公司 | Mounting structure of rubber water-stop |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106948844A (en) * | 2017-05-08 | 2017-07-14 | 谌成勋 | Waterstop and building structure |
CN106948844B (en) * | 2017-05-08 | 2024-04-12 | 河北汇海橡塑材料股份有限公司 | Water stop and building structure |
CN109488344A (en) * | 2018-10-29 | 2019-03-19 | 中铁十二局集团有限公司 | Subway waterstop waterproof construction method |
CN109488344B (en) * | 2018-10-29 | 2020-08-04 | 中铁十二局集团有限公司 | Waterproof construction method for subway water stop |
CN110067311A (en) * | 2019-05-14 | 2019-07-30 | 长江勘测规划设计研究有限责任公司 | The connection structure and method of new-old concrete component junction |
CN110067311B (en) * | 2019-05-14 | 2024-04-12 | 长江勘测规划设计研究有限责任公司 | Connection structure and method for joint of new and old concrete members |
CN110158542A (en) * | 2019-06-17 | 2019-08-23 | 中国电建集团华东勘测设计研究院有限公司 | The Lossless connection structure and construction method of cut-pff wall and nut cap concrete |
CN114856008A (en) * | 2022-05-24 | 2022-08-05 | 中建八局第三建设有限公司 | Building outer wall root waterproof construction |
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