CN211200297U - Water stop belt for water stop of concrete panel rock-fill dam surface layer - Google Patents
Water stop belt for water stop of concrete panel rock-fill dam surface layer Download PDFInfo
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- CN211200297U CN211200297U CN201921925639.5U CN201921925639U CN211200297U CN 211200297 U CN211200297 U CN 211200297U CN 201921925639 U CN201921925639 U CN 201921925639U CN 211200297 U CN211200297 U CN 211200297U
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- trapezoidal
- rubber rod
- concrete panel
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Abstract
The utility model discloses a waterstop for concrete panel rock-fill dam top layer stagnant water, rubber waterstop, rubber stick, rubber buffer including integrated into one piece. By integrating, a construction process of water stop site construction is reduced, and the interference of the traditional wavy water stop belt to the bottom rubber rod during construction is avoided; simultaneously change traditional circular rubber stick into trapezoidal and the bottom connect one with the equidistant width's of parting rectangle stopper, effectual assurance rubber stick and concrete panel structure coincide, reduce the dislocation on a large scale of traditional rubber stick, effectively avoid rubber stick and panel to break away from the reduction that causes the prevention of seepage effect after breaking away from. When the trapezoidal rubber rod is designed, the top of the trapezoidal rubber rod is made into a prefabricated arch structure, the force of the upstream water seepage pressure acting on the rubber rod is effectively transmitted to the grooved concrete through the arch structure, the two sides of the trapezoidal rubber rod are made to be consistent with the groove gradient of the concrete panel, the trapezoidal rubber rod is bonded with the two sides of the V-shaped groove through high polymer structural adhesive, and one safe storage of water stopping is increased.
Description
Technical Field
The utility model relates to a concrete panel rock-fill dam top layer stagnant water structure, especially the waterstop structure in the stagnant water structure belongs to hydraulic and hydroelectric engineering structural design field.
Background
The performance of the water stopping structure and the material is a key factor for the normal operation of the dam, and the concrete panel rock-fill dam at present mainly comprises surface water stopping, middle water stopping and bottom water stopping according to different water stopping distribution positions, wherein the surface water stopping and the bottom water stopping are relatively convenient to construct and maintain and are relatively more widely applied. The surface water stop is used as the first water stop in direct contact with a water body, and the quality of the surface water stop is directly important for an anti-seepage system of the whole dam.
The existing surface water stop is mainly shown in figure 1, and the structure of the existing surface water stop mainly comprises a surface composite cover plate 1, a plastic filler 2, a rubber water stop 10, an asphalt impregnated shirt plate 9 (such as an asphalt impregnated shirt plate with the thickness of 12mm, and asphalt emulsion with the thickness of 5mm is coated on a seam surface) and a PVC rubber rod 11 for supporting. Although the existing water stopping construction technology tends to be mature, the surface water stopping materials are more in appearance, small and miscellaneous, and the construction is relatively complicated, for example, the internal traditional rubber water stopping belt 10 needs to be fixed with the stainless steel flat steel 3 through the stainless steel expansion bolt 4, the position of the internal PVC rubber rod 11 is not fixed, the joint with the panel is easy to dislocate under the action of water pressure, a gap is generated, and certain potential safety hazards are brought, so that the research of a firmer structure is very necessary.
Disclosure of Invention
The utility model aims at providing a waterstop for concrete face rock-fill dam top layer stagnant water, to the interference of bottom rubber stick when avoiding traditional wave waterstop to construct, effectively reduce the dislocation on a large scale of rubber stick, effectively transmit top infiltration water loading effect, cause the reduction of prevention of seepage effect after avoiding rubber stick and panel to break away from, improve the cohesion of waterstop and panel.
The technical scheme of the utility model as follows:
a water stop for stopping water on the surface layer of a concrete face rockfill dam comprises,
the cross section of the rubber rod is trapezoidal;
the rubber waterstops comprise first wavy waterstops, and the first waterstops of the two rubber waterstops are connected with two ends of the longer bottom edge of the trapezoidal section of the rubber rod respectively;
the rubber plug is rectangular in cross section, and one side of the rectangle is connected with the bottom side with shorter length in the trapezoidal cross section of the rubber rod;
the rubber rod, the rubber waterstop and the rubber plug are integrally formed.
Preferably, the two rubber water stops and the rubber rod are positioned on a straight line when not subjected to external force.
Preferably, the two rubber water stops are symmetrical left and right relative to the rubber rod.
Preferably, the length of side of rubber buffer and rubber stick junction equals the length of the shorter base side length in the trapezoidal cross-section of rubber stick.
Preferably, the surface corresponding to the longer bottom side in the trapezoidal section of the rubber rod is arched to form a prefabricated arch structure.
Preferably, the slopes of two waists in the trapezoidal section of rubber rod are the same with the slope of concrete panel V type groove.
Preferably, the width of the rectangular cross section of the rubber plug is consistent with the width of the parting.
The utility model discloses a waterstop is when using, and the end of wave rubber waterstop passes through the bolt and links to each other with concrete structure, and two side surfaces that two waists correspond in the trapezoidal cross-section of rubber stick glue through high polymer structure and bond with V type groove both sides, and what need notice is that two side surfaces that two waists correspond in the trapezoidal cross-section of rubber stick are less than the tensile strength of rubber stick itself with the intensity that V type groove both sides bonded.
The utility model discloses a structural feature of waterstop is: the initial states of the wavy rubber water stop and the rubber rod are linear, and the initial states refer to the states of the wavy water stop and the rubber rod when the wavy water stop and the rubber rod are not under the action of external force. The other structural characteristic is that: the surface of the rubber rod is in a prefabricated arch shape.
The utility model integrates the traditional wave-shaped rubber waterstop and the rubber rod, and adds the rectangular rubber plug structure at the bottom of the rubber rod, namely, the processing and forming of three structures are completed in a factory, one construction procedure of waterstop site construction is reduced, and the interference of the traditional wave-shaped waterstop to the bottom rubber rod during construction is avoided; meanwhile, the traditional circular rubber rod is changed into a trapezoid, the bottom of the traditional circular rubber rod is connected with a rectangular rubber plug which is as wide as a parting seam, the rubber rod can be effectively ensured to be matched with a concrete panel structure, the large-scale dislocation of the traditional rubber rod is reduced, and the reduction of the anti-seepage effect caused by the separation of the rubber rod and the panel is effectively avoided. In addition, when the rubber rod with the trapezoidal section is designed, the top of the rubber rod is made into a prefabricated arch structure, the force of the upstream water seepage pressure acting on the rubber rod can be effectively transmitted to the grooved concrete through the arch structure, the two sides of the trapezoidal rubber rod are made to be consistent with the groove gradient of the concrete panel, and the high polymer structural adhesive is bonded with the two sides of the V-shaped groove (the bonding strength is smaller than the tensile strength of the trapezoidal water stop belt), so that one safe storage of water stop is increased.
Use the utility model discloses a when the waterstop was as stagnant water structure, to the interference of bottom rubber stick when having avoided traditional wave waterstop to construct, bottom rectangle rubber buffer can effectively reduce the rubber stick on a large scale simultaneously and misplace, and the prefabricated domes in top can effectively transmit top seepage water load effect, avoids rubber stick and panel to break away from the reduction that causes the prevention of seepage effect after. The bonding between the trapezoidal rubber rod and the V-shaped groove is increased, and the trapezoidal rubber rod and the wavy rubber index belt are connected with each other through the bolts and the concrete V-shaped groove to supplement each other.
Compared with the prior art, the utility model provides a novel waterstop structure for concrete panel rock-fill dam top layer stagnant water, its advantage lies in:
(1) the construction process is simplified: the wavy rubber water stop, the rubber rod and the rubber plug can be processed and formed in a factory, and the construction process of the rubber rod and the wavy water stop can be simplified into one process on site.
(2) Reducing construction interference: because this structure has simplified the construction process, can avoid traditional construction process upper portion wave waterstop to the influence of bottom rubber stick when laying, avoid the rubber stick dislocation.
(3) Safe and reliable: the wave-shaped water stop belt and the rubber rod can be processed and formed at one time in a factory, connection of the joints is ensured, the rubber rod is arranged in the wave-shaped water stop belt, the wave-shaped water stop belt is restrained at two ends, the rectangular rubber plug is restrained at the bottom, the possibility that the rubber rod is greatly dislocated can be avoided, and the safety of the dam is ensured.
(4) Dispersed transmission osmotic pressure action: the top of the trapezoidal rubber rod is made into a prefabricated arch structure, and the pressure of the seepage water borne by the trapezoidal rubber rod can be dispersed and transmitted to the two sides of the concrete V-shaped groove.
(5) The two sides of the trapezoidal rubber rod are connected with the two sides of the V-shaped groove through high polymer structural adhesive, so that potential safety hazards caused by poor sealing of the two sides of the wave-shaped rubber water stop can be prevented.
(6) Economic and environment-friendly: compared with the traditional wave-shaped water stop belt and rubber rod separated structure, the structure can reduce the material consumption by 12.5 percent under the same size standard, and is more favorable for environmental protection.
Drawings
FIG. 1 is a schematic diagram of a conventional surface water stop structure;
FIG. 2 is a big sample of the novel waterstop of the utility model;
FIG. 3 is a schematic view of the structure of the surface water stop of the utility model;
in the figure, 1: a surface layer composite cover plate; 2: a plastic filler; 3: stainless steel flat steel; 4: an expansion bolt; 5: a rubber waterstop; 6: a rubber rod; 7: a rubber plug; 8: a high polymer structural adhesive; 9: a fir board; 10: a conventional rubber waterstop; 11: a rubber rod.
Detailed Description
The following description of the present invention will be made with reference to the accompanying drawings and specific embodiments, but it should not be understood that the scope of the present invention is limited to the following embodiments, and various modifications, substitutions and changes made according to the ordinary technical knowledge and conventional means in the art without departing from the technical spirit of the present invention are included in the scope of the present invention.
As shown in fig. 3, the novel water stopping structure for stopping water on the surface layer of the concrete-faced rockfill dam in this embodiment includes a surface layer composite cover plate 1, a plastic filler 2, a stainless steel flat steel 3, a stainless steel expansion bolt 4, a water stopping strip, a high polymer structural adhesive 8, and a cedar wood plate 9.
As shown in fig. 2, the water stop in this embodiment is formed by combining a rubber water stop 5 with a wave-shaped structure, a rubber rod 6 with a trapezoidal cross-section structure, and a rubber stopper 7 with a rectangular cross-section, the thickness of the rubber water stop 5 is 10mm, and the rubber water stop includes a first water stop part with a wave-shaped structure and a straight line part connected with the first water stop part, the tail end of the straight line part is connected with the trapezoidal part, the gradient of the trapezoidal part is 1:1, and the length of the lower bottom is 24 mm. The upper bottom of the rubber rod 6 with the trapezoidal section structure is 20mm wide, the lower bottom is 100mm wide, the two side edges are 1:1 gradient and 60mm high, and the lower bottom (the top in figure 2) is made into a prefabricated arch shape; the rubber stopper 7 with the rectangular section is arranged at the upper bottom (the bottom in figure 2), the width and the height are both 20mm, the rubber stopper 6 with the larger trapezoidal section and the rubber stopper 7 with the rectangular section are arranged in the middle of the wavy rubber water stop 5, the two sides of the rubber water stop 5 are symmetrically arranged, namely, the two rubber water stops 5 with the wavy structure are symmetrical left and right relative to the rubber stopper 6, and before the rubber water stop 5 with the wavy structure and the rubber stopper 6 are used, the rubber water stop 5 and the rubber stopper 6 are in a linear initial state, as shown in figure 2. When the rubber plug is used, the rubber plug 7 with the rectangular cross section is embedded into the seam connecting groove before the plastic filler 2 is plugged, two sides of the rubber rod 6 with the trapezoidal cross section are bonded with two sides of the V-shaped groove, and the asphalt fir board 9 is filled in the seam.
As a conventional option, the width of the combined structure of the rubber water stop 5 with the wave-shaped structure, the rubber rod 6 with the trapezoidal section and the rubber plug 7 with the rectangular section is 400mm, and the combined structure can be properly adjusted according to the size of the groove and the size of the rubber rod 6.
The straight line parts at the two ends of the rubber water stop belt 5 are firmly fixed on the concrete grooving surface by the stainless steel flat steel 3 through the expansion bolts 4, the two sides of the rubber rod 6 with the trapezoidal section are bonded on the grooving surface through the high polymer structural adhesive 8, the cleaning of scum and the like on the grooving surface is ensured before bonding, and the ends of all stainless steel flat steel 3 pressing strips are polished smoothly to avoid stabbing the surface layer composite cover plate 1.
Claims (7)
1. The utility model provides a waterstop that is used for concrete panel rock-fill dam top layer stagnant water which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the cross section of the rubber rod is trapezoidal;
the rubber waterstops comprise first wavy waterstops, and the first waterstops of the two rubber waterstops are connected with two ends of the longer bottom edge of the trapezoidal section of the rubber rod respectively;
the rubber plug is rectangular in cross section, and one side of the rectangle is connected with the bottom side with shorter length in the trapezoidal cross section of the rubber rod;
the rubber rod, the rubber waterstop and the rubber plug are integrally formed.
2. The water stop for surface sealing of concrete panel rock-fill dams of claim 1, wherein: and the two rubber water stops and the rubber rod are positioned on the same straight line when not influenced by external force.
3. The water stop for surface sealing of concrete panel rock-fill dams of claim 1, wherein: and the two rubber water stops are symmetrical left and right relative to the rubber rod.
4. The water stop for surface sealing of concrete panel rock-fill dams of claim 1, wherein: the side length of the joint of the rubber plug and the rubber rod is equal to the side length of the shorter bottom side in the trapezoidal section of the rubber rod.
5. The water stop for surface sealing of concrete panel rock-fill dams of claim 1, wherein: the surface corresponding to the longer bottom side in the trapezoidal section of the rubber rod is arched.
6. The water stop for surface sealing of concrete panel rock-fill dams of claim 1, wherein: the slopes of two waists in the trapezoidal section of rubber rod are the same with the slope of concrete panel V type groove.
7. The water stop for surface sealing of concrete panel rock-fill dams of claim 1, wherein: the width of the rectangular cross section of the rubber plug is consistent with the width of the parting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921925639.5U CN211200297U (en) | 2019-11-07 | 2019-11-07 | Water stop belt for water stop of concrete panel rock-fill dam surface layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921925639.5U CN211200297U (en) | 2019-11-07 | 2019-11-07 | Water stop belt for water stop of concrete panel rock-fill dam surface layer |
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| CN211200297U true CN211200297U (en) | 2020-08-07 |
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| CN201921925639.5U Active CN211200297U (en) | 2019-11-07 | 2019-11-07 | Water stop belt for water stop of concrete panel rock-fill dam surface layer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747820A (en) * | 2019-11-07 | 2020-02-04 | 中国电建集团贵阳勘测设计研究院有限公司 | A waterstop and stagnant water structure for concrete panel rock-fill dam top layer stagnant water |
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2019
- 2019-11-07 CN CN201921925639.5U patent/CN211200297U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747820A (en) * | 2019-11-07 | 2020-02-04 | 中国电建集团贵阳勘测设计研究院有限公司 | A waterstop and stagnant water structure for concrete panel rock-fill dam top layer stagnant water |
| CN110747820B (en) * | 2019-11-07 | 2024-03-26 | 中国电建集团贵阳勘测设计研究院有限公司 | Water stop belt and water stop structure for water stop of concrete face rockfill dam surface layer |
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