High-altitude concrete faced rockfill dam vertical joint construction water stop device

Abstract

The utility model relates to the technical field of vertical joint water stopping devices, in particular to a high-altitude concrete faced rockfill dam vertical joint construction water stopping device which comprises two panel bodies, a vertical joint arranged between the two panel bodies and a water stopping assembly arranged in the vertical joint. The water stopping assembly comprises water stopping pieces which are fixedly installed on the lower surfaces of the two panel bodies and located at the vertical seam. According to the utility model, the composite rubber plate is covered by the covering assembly, and the sealing effect between the rubber plate and the panel is improved by fastening and extruding the composite rubber plate between the cover plate and the panel, so that after the bonding effect of an adhesive is reduced, water can still be prevented from entering a vertical seam from the part between the rubber plate and the panel, and the water stopping effect is improved; and the water stop piece and the reinforcing assembly are connected through the connecting screw rod, the next downward pressure is provided for the composite rubber plate, the upward pulling force is provided for the water stop piece, and after the supporting force below the water stop piece is reduced, the water stop effect of the vertical seam is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical joint water stop devices, in particular to a vertical joint construction water stop device for a high-altitude concrete face rockfill dam. Background Technique

[0002] The concrete face rockfill dam has now become a relatively economical and applicable dam type recognized in the world. It can adapt to various topographical and geological conditions, is convenient for construction, the filling materials can be obtained locally, various rock excavation materials can be used in different zones, the construction machinery is relatively single, and the construction interference is less, and the progress is fast. And the water stop of the dam, especially the water stop of the face joint, is one of the key issues in the project, which is related to the safety and service life of the dam.

[0003] The existing vertical joint water stop device usually consists of a water stop sheet at the bottom layer, a composite rubber sheet above the vertical joint and a filled plastic filler. After the adhesive bonding effect of the composite rubber sheet above the vertical joint decreases, water is likely to enter the vertical joint from between the rubber sheet and the face slab, and the water stop effect is poor. Moreover, the two water stop structures at the bottom layer and above the vertical joint are independent of each other. When the foundation under the water stop sheet is damaged, the supporting force under the water stop sheet decreases, which easily leads to a decrease in the water stop effect between the water stop sheet and the face slab. Content of the Utility Model

[0004] The purpose of the utility model is to provide a vertical joint construction water stop device for a high-altitude concrete face rockfill dam to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A vertical joint construction water stop device for a high-altitude concrete face rockfill dam, including two face slab bodies, with a vertical joint provided between the two face slab bodies, and further including:

[0007] A water stop assembly, arranged inside the vertical joint. The water stop assembly includes a water stop sheet fixedly installed on the lower surfaces of the two face slab bodies at the vertical joint, and a composite rubber sheet is movably arranged above the inside of the vertical joint;

[0008] A reinforcement assembly, arranged above the composite rubber sheet. The reinforcement assembly includes an arc-shaped rubber sheet movably arranged above the composite rubber sheet;

[0009] A covering assembly, arranged above the reinforcement assembly.

[0010] Furthermore: Multiple protrusions with different heights are integrally formed on the surface of the water stop sheet. At the upper end of the outer surface of the middle protrusion, a plurality of connecting screws are fixedly installed at equal intervals. A sleeve is movably sleeved on the outside of the connecting screws inside the vertical joint.

[0011] Further, a connecting strip is fixedly installed inside the arc-shaped rubber sheet, and a plurality of arc-shaped plates are fixedly embedded and installed on the surface of the connecting strip at equal intervals inside the arc-shaped rubber sheet, and a collar is fixedly installed on the outer surface of the arc-shaped plate.

[0012] Preferably, the connecting screw rod movably penetrates through the arc-shaped plate, the arc-shaped rubber sheet and the collar.

[0013] Preferably, a spiral washer is movably arranged on the outer surface of the connecting screw rod above the collar, and a first nut is screwed on the outer side of the connecting screw rod above the spiral washer.

[0014] Further, the covering assembly includes:

[0015] A cover plate covering above the composite rubber sheet;

[0016] A plurality of fastening screw rods are symmetrically embedded and installed at equal intervals on the upper surfaces of the two panel bodies.

[0017] Preferably, the fastening screw rod movably penetrates through the cover plate, a metal washer is movably sleeved on the outer side of the fastening screw rod above the cover plate, and a second nut is screwed on the outer side of the fastening screw rod outside the metal washer.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] 1. By covering the connecting screw rod with a sleeve, it is avoided that it contacts the panel body, so that when the first nut is tightened, more pulling force is provided for the connecting screw rod, and an upward pulling force is applied to the water stop sheet. After the supporting force below the water stop sheet decreases, the water stop effect of the vertical joint is maintained. At the same time, the arc-shaped plate and the connecting strip press the arc-shaped rubber sheet downward, so that the inner side of the composite rubber sheet is pressed and fitted with the outer surface of the arc-shaped rubber sheet, and the outer side of the composite rubber sheet is pressed and fitted with the inner wall of the vertical joint. After the bonding effect of the adhesive filled at the vertical joint between the composite rubber sheet and the vertical joint decreases, it can still prevent water from entering the vertical joint between the composite rubber sheet and the panel body, improving the water stop effect.

[0020] 2. Due to the spiral structure of the spiral washer itself, it can have a certain elastic deformation ability, shrink inward or expand outward to adapt to the volume change of the panel body and maintain the water stop effect.

[0021] 3. Install the cover plate and tighten the second nut to move the cover plate downward to press the composite rubber sheet, and press the extended parts at both ends of the composite rubber sheet between the panel body and the cover plate, increasing the connection tightness between the panel body and the composite rubber sheet and improving the water stop effect of the composite rubber sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 is the schematic diagram of the overall split structure of the present utility model;

[0024] Figure 3 is the schematic diagram of the overall vertical sectional structure of the present utility model;

[0025] Figure 4 is the schematic diagram of the partial side sectional structure of the reinforcement component and the rubber plate in the present utility model;

[0026] Figure 5 is the schematic diagram of the partial structure of the reinforcement component in the present utility model.

[0027] In the figure: 1. Panel main body; 101. Vertical joint; 2. Water stop component; 201. Water stop sheet; 202. Protrusion; 203. Connecting screw; 204. Sleeve; 205. Composite rubber plate; 3. Reinforcement component; 301. Arc-shaped rubber sheet; 302. Connecting strip; 303. Arc-shaped plate; 304. Collar; 305. Spiral washer; 306. First nut; 4. Covering component; 401. Cover plate; 402. Fastening screw; 403. Metal washer; 404. Second nut. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1-5 , in the embodiment of the present utility model, a water stop device for the vertical joint construction of a high-altitude concrete face rockfill dam includes two panel main bodies 1, a vertical joint 101 is provided between the two panel main bodies 1, and further includes: a water stop component 2 arranged inside the vertical joint 101, the water stop component 2 includes a water stop sheet 201 fixedly installed on the lower surfaces of the two panel main bodies 1 at the vertical joint 101, a composite rubber plate 205 is movably arranged above the vertical joint 101, a reinforcement component 3 arranged above the composite rubber plate 205, and the reinforcement component 3 includes an arc-shaped rubber sheet 301 movably arranged above the composite rubber plate 205, and a covering component 4 arranged above the reinforcement component 3.

[0030] Specifically, the water stop component 2 seals the vertical joint 101 from the upper end and the lower end, increasing its water stop effect. The reinforcement component 3 fastens the water stop component 2 and enables the water stop component 2 to have a certain elastic deformation ability to adapt to the volume change of the panel main body 1 caused by environmental influence, and positions the water stop effect. The covering component 4 covers the composite rubber plate 205 from above to further enhance the water stop effect.

[0031] Example 1

[0032] As Figures 1-4 shown, in this embodiment, a plurality of protrusions 202 with different heights are integrally formed on the surface of the water stop sheet 201. A plurality of connecting screws 203 are fixedly installed at equal intervals at the upper end of the outer surface of the middle protrusion 202. A sleeve 204 is movably sleeved outside the connecting screw 203 inside the vertical joint 101; a connecting strip 302 is fixedly installed inside the arc-shaped rubber sheet 301. A plurality of arc-shaped plates 303 are fixedly embedded and installed at equal intervals on the surface of the connecting strip 302 inside the arc-shaped rubber sheet 301. A collar 304 is fixedly installed on the outer surface of the arc-shaped plate 303; the connecting screw 203 movably penetrates through the arc-shaped plate 303, the arc-shaped rubber sheet 301 and the collar 304.

[0033] In this embodiment, the plurality of protrusions 202 on the surface of the water stop sheet 201 increase its contact area with the panel main body 1, improve the water stop effect, and enhance the connection firmness between the two. The connecting screw 203 is covered by the sleeve 204 to prevent it from contacting the panel main body 1, so that when the first nut 306 is tightened, more pulling force is provided for the connecting screw 203, giving the water stop sheet 201 an upward pulling force. After the supporting force below the water stop sheet 201 decreases, the water stop effect of the vertical joint 101 is maintained. At the same time, by tightening and rotating the first nut 306 downward, the arc-shaped plate 303 and the connecting strip 302 press the arc-shaped rubber sheet 301 downward, so that the inner side of the composite rubber sheet 205 is squeezed and attached to the outer surface of the arc-shaped rubber sheet 301, and the outer side of the composite rubber sheet 205 is squeezed and attached to the inner wall of the vertical joint 101. After the bonding effect of the adhesive filled at the composite rubber sheet 205 and the vertical joint 101 decreases, water can still be prevented from entering the vertical joint 101 between the composite rubber sheet 205 and the panel main body 1, improving the water stop effect.

[0034] As Figure 4 and Figure 5 shown, in this embodiment, a spiral washer 305 is movably arranged above the collar 304 on the outer surface of the connecting screw 203, and a first nut 306 is screwed on the outer side of the connecting screw 203 above the spiral washer 305.

[0035] During specific implementation, due to the spiral structure of the spiral washer 305 itself, it can have a certain elastic deformation ability, contracting inward or expanding outward, so that the distance between the collar 304 and the first nut 306 can be freely changed with the contraction of the composite rubber sheet 205, adapting to the volume change of the panel main body 1 and maintaining the water stop effect.

[0036] Example 2

[0037] Based on the first embodiment, in order to address the problem that water easily enters the vertical seam from between the composite rubber plate 205 and the panel main body 1.

[0038] As Figure 2 and Figure 3 shown, in this embodiment, the covering assembly 4 includes: a cover plate 401 covering above the composite rubber plate 205, and a plurality of fastening screws 402 symmetrically and equidistantly embedded and installed on the upper surface of the two panel main bodies 1; the fastening screws 402 movably penetrate through the cover plate 401, a metal washer 403 is movably sleeved on the outer side of the fastening screw 402 above the cover plate 401, and a second nut 404 is screwed on the outer side of the metal washer 403 on the outer side of the fastening screw 402.

[0039] During specific implementation, the fastening screws 402 are fixedly embedded in the panel main body 1, the cover plate 401 is installed, and the second nut 404 is tightened, so that the cover plate 401 moves downward to press the composite rubber plate 205, and the extended parts at both ends of the composite rubber plate 205 are pressed between the panel main body 1 and the cover plate 401, increasing the connection tightness between the panel main body 1 and the composite rubber plate 205 and improving the water-stop effect of the composite rubber plate 205.

[0040] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed by the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0041] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water stop device for the construction of vertical joints of a high-altitude concrete face rockfill dam, comprising two main face slabs (1), with a vertical joint (101) provided between the two main face slabs (1), characterized in that, It further includes: A water stop component (2) is arranged inside the vertical joint (101). The water stop component (2) includes a water stop sheet (201) fixedly installed on the lower surfaces of the two panel bodies (1) at the vertical joint (101), and a composite rubber sheet (205) is movably arranged above the inside of the vertical joint (101); A reinforcement component (3) is arranged above the composite rubber sheet (205). The reinforcement component (3) includes an arc-shaped rubber sheet (301) movably arranged above the composite rubber sheet (205); A covering component (4) is arranged above the reinforcement component (3).

2. The water stop device for the vertical joint construction of the high-altitude concrete face rockfill dam according to claim 1, characterized in that, A plurality of protrusions (202) with different heights are integrally formed on the surface of the water stop sheet (201). A plurality of connecting screws (203) are fixedly installed at equal intervals on the upper end of the outer surface of the middle protrusion (202). A sleeve (204) is movably sleeved on the outer side of the connecting screw (203) inside the vertical joint (101).

3. The water stop device for the vertical joint construction of the high-altitude concrete face rockfill dam according to claim 2, characterized in that, A connecting bar (302) is fixedly installed inside the arc-shaped rubber sheet (301). A plurality of arc-shaped plates (303) are fixedly embedded and installed at equal intervals on the surface of the connecting bar (302) inside the arc-shaped rubber sheet (301). A collar (304) is fixedly installed on the outer surface of the arc-shaped plate (303).

4. The water stop device for vertical joint construction of high-altitude concrete face rockfill dam according to claim 3, characterized in that, The connecting screw (203) movably penetrates through the arc-shaped plate (303), the arc-shaped rubber sheet (301) and the collar (304).

5. The water stop device for the vertical joint construction of the high-altitude concrete face rockfill dam according to claim 3, characterized in that, A spiral washer (305) is movably arranged on the outer surface of the connecting screw (203) above the collar (304), and a first nut (306) is screwed on the outer side of the connecting screw (203) above the spiral washer (305).

6. The water stop device for the vertical joint construction of the high-altitude concrete face rockfill dam according to claim 1, characterized in that, The covering component (4) includes: A cover plate (401) covers above the composite rubber sheet (205); A plurality of fastening screws (402) are symmetrically embedded and installed at equal intervals on the upper surfaces of the two panel bodies (1).

7. The water stop device for the vertical joint construction of the high-altitude concrete face rockfill dam according to claim 6, characterized in that, The fastening screw (402) movably penetrates through the cover plate (401). A metal washer (403) is movably sleeved on the outer side of the fastening screw (402) above the cover plate (401). A second nut (404) is screwed on the outer side of the fastening screw (402) outside the metal washer (403).

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