Composite earth and rockfill dam structure for water conservancy and hydropower engineering

Abstract

The utility model discloses a composite earth and rockfill dam structure, particularly discloses a composite earth and rockfill dam structure for water conservancy and hydropower engineering, and belongs to the technical field of design and manufacturing of water conservancy and hydropower engineering structures. The composite earth and rockfill dam structure for the water conservancy and hydropower engineering can remarkably reduce the height of the top of an earth and rockfill dam and improve the view of an upstream dam. The composite earth and rockfill dam structure comprises an earth and rockfill dam body and further comprises an anti-wave digestion system, and the anti-wave digestion system is arranged at the top of the earth and rockfill dam body on the upstream side. And the climbing height of water and waves is reduced and limited by the wave-resistant digestion system.

Description

Technical Field

[0001] The utility model relates to a composite earth-rock dam structure, in particular to a composite earth-rock dam structure used for water conservancy and hydropower engineering, and belongs to the technical field of design and manufacture of water conservancy and hydropower engineering structures. Background Art

[0002] As a widely used dam type, earth-rock dams are widely used in water conservancy and hydropower projects around the world. With the progress of society, while paying attention to engineering safety, the aesthetics of the project is also increasingly valued by builders. The crest elevation of an earth-rock dam is usually composed of the upstream water level, the wind-driven water surface height, the wave climb, and the safety superelevation; among them, the main influencing factor is the wave climb. If the wind-wave climb can be reduced, it will be of great significance to reduce the height of the earth-rock dam and thus save the investment in the dam project. Usually, increasing the roughness of the upstream surface of the dam can achieve a certain effect, but most of the means of increasing the roughness of the upstream dam surface, such as using large stones, will affect the appearance of the upstream dam, and various wave-breaking wall structures on the coast are not suitable for the upstream surface of the dam. Therefore, it is necessary to study a structure that is simple and practical, does not affect the overall appearance of the dam, and can reduce the dam crest elevation. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a composite earth-rock dam structure for water conservancy and hydropower engineering which can significantly reduce the height of the earth-rock dam crest and improve the appearance of the upstream dam.

[0004] The technical solution adopted to solve the above technical problems is: a composite earth-rock dam structure for water conservancy and hydropower projects, including an earth-rock dam body, the composite earth-rock dam structure also includes a wave-breaking and dissipation system, which is arranged on the top of the earth-rock dam body on the upstream side; the climbing height of the stagnant water and waves is reduced and limited by the wave-breaking and dissipation system.

[0005] Furthermore, an upstream climbing surface is arranged on the upstream side of the earth-rock dam body, a dam body top platform surface is arranged on the top of the earth-rock dam body, and a wave-breaking and dissipating system is embedded in the earth-rock dam body at the corner of the upstream climbing surface and the dam body top platform surface.

[0006] A preferred embodiment of the above scheme is that the wave-breaking and dissipating system is a wave-breaking and dissipating mechanism embedded in the earth-rock dam body at the corner between the upstream climbing surface and the top platform surface of the dam body.

[0007] Furthermore, the wave-breaking and dissipating mechanism at least includes an inlay and a wave-breaking wall, and the wave-breaking wall is arranged at the corner between the upstream climbing surface and the top platform surface of the dam body through the inlay.

[0008] A preferred embodiment of the above scheme is that the mosaic is a concrete mosaic formed by cast-in-place concrete, and the wave-breaking wall is a concrete wave-breaking wall formed by cast-in-place concrete.

[0009] Furthermore, the integrally formed concrete mosaic and concrete wave-breaking wall have an L-shaped projection in their cross-section. The concrete mosaic is horizontally extended toward the downstream side and is embedded in the earth-rock dam body, and the concrete wave-breaking wall is vertically extended upward and is disposed on the upstream side surface of the top of the earth-rock dam body.

[0010] A preferred embodiment of the above scheme is that a concrete reinforcing body is arranged at the corner where the concrete mosaic and the concrete wave-breaking wall are connected to each other.

[0011] Furthermore, the wave-breaking and wave-dissipating mechanism also includes a wave-dissipating block, which is arranged perpendicularly to the upstream climbing surface on the upstream side of the inlay at the corner of the inlay and the wave-breaking wall.

[0012] A preferred embodiment of the above scheme is that the mosaic body further comprises an extension block extending from the wave-breaking wall toward the upstream side in a horizontal direction, and the wave-breaking block is arranged on the upstream side of the mosaic body through the extension block.

[0013] Furthermore, a plurality of drainage holes are provided at the root of the wave-breaking block, and each drainage hole is arranged on the wave-breaking block along the length direction of the earth-rock dam body.

[0014] The beneficial effects of the utility model are as follows: the technical solution provided by the present application is based on the existing earth-rock dam body, and the composite earth-rock dam structure of the present application is formed by adding a wave-proof and dissipation system, and the wave-proof and dissipation system is arranged on the top of the earth-rock dam body on the upstream side; then the climbing height of the stagnant water and waves is reduced and limited by the wave-proof and dissipation system. In this way, the technical problem of having to increase the height of the dam top due to the lack of a wave-proof mechanism in the prior art is solved, and the purpose of reducing the construction height of the dam is achieved. At the same time, because the wave-proof and dissipation system is separately arranged on the upstream side of the top of the earth-rock dam body, the structure that affects the appearance by increasing the roughness of the upstream surface of the dam is omitted in the prior art, thereby effectively improving the appearance of the upstream of the dam. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a cross-sectional structural schematic diagram of a composite earth-rock dam structure used in water conservancy and hydropower engineering.

[0016] Marked in the figure are: earth-rock dam body 1, upstream climbing surface 2, inlay 3, wave-breaking wall 4, concrete reinforcement 5, wave-breaking block 6, extension block 7, drainage hole 8. DETAILED DESCRIPTION

[0017] like Figure 1The utility model shows a composite earth-rock dam structure for water conservancy and hydropower projects, which can significantly reduce the height of the earth-rock dam crest and improve the appearance of the upstream dam. The composite earth-rock dam structure includes an earth-rock dam body 1, and the composite earth-rock dam structure also includes a wave-breaking and dissipating system, which is arranged on the top of the earth-rock dam body on the upstream side; the climbing height of the stagnant water and waves is reduced and limited by the wave-breaking and dissipating system. The technical solution provided by the present application is based on the existing earth-rock dam body, and the composite earth-rock dam structure of the present application is formed by adding a wave-breaking and dissipating system, and the wave-breaking and dissipating system is arranged on the top of the earth-rock dam body on the upstream side; then the climbing height of the stagnant water and waves is reduced and limited by the wave-breaking and dissipating system. In this way, the technical problem of having to increase the height of the dam top due to the lack of a wave-breaking mechanism in the prior art is solved, thereby achieving the purpose of reducing the construction height of the dam. At the same time, since the wave-breaking and dissipating system is separately arranged on the upstream side of the top of the earth-rock dam body, the structure that increases the roughness of the upstream surface of the dam and affects the appearance in the prior art is eliminated, thereby effectively improving the appearance of the upstream of the dam.

[0018] Correspondingly, in combination with the structural features that an upstream climbing surface 2 is also provided on the upstream side of the existing earth-rock dam body 1, and a dam body top platform surface is also provided on the top of the earth-rock dam body 1, the present application embeds the wave-breaking and dissipating system into the earth-rock dam body 1 at the corner of the upstream climbing surface 2 and the dam body top platform surface. At this time, the wave-breaking and dissipating system is preferably a wave-breaking and dissipating mechanism embedded in the earth-rock dam body 1 at the corner of the upstream climbing surface 2 and the dam body top platform surface. A more specific structure is that the wave-breaking and dissipating mechanism at least includes an inlay 3 and a wave-breaking wall 4, and the wave-breaking wall 4 is arranged at the corner of the upstream climbing surface 2 and the dam body top platform surface through the inlay 3. The inlay 3 is preferably a concrete inlay formed by cast-in-place concrete, and the wave-breaking wall 4 is preferably a concrete wave-breaking wall formed by cast-in-place concrete. At the same time, in order to facilitate construction, the present application sets the concrete mosaic and the concrete wave-breaking wall into an integrally formed structure whose projection in the cross section is L-shaped, and sets the concrete mosaic to be embedded in the earth-rock dam body 1 extending toward the downstream side in the horizontal direction, and sets the concrete wave-breaking wall to be blocked on the upstream side of the top of the earth-rock dam body and extending upward in the vertical direction. In order to improve the strength of the connection between the concrete mosaic and the concrete wave-breaking wall, a concrete reinforcement body 5 is also arranged at the corner where the concrete mosaic and the concrete wave-breaking wall are connected to each other.

[0019] Furthermore, in order to minimize the height of the stagnant water and waves, the wave-breaking and dissipating mechanism of the present application also includes a wave-breaking block 6, which is arranged vertically with the upstream climbing surface 2 on the upstream side of the mosaic at the corner of the mosaic 3 and the wave-breaking wall 4. In order to facilitate the arrangement of the wave-breaking block 6, the mosaic 3 of the present application also has an extension block 7 extending from the wave-breaking wall to the upstream side in the horizontal direction, and the wave-breaking block 6 is arranged on the upstream side of the mosaic 3 through the extension block 7. At this time, a plurality of drainage holes 8 are also provided at the root of the wave-breaking block 6, and each drainage hole 8 is arranged on the wave-breaking block 6 along the length direction of the earth-rock dam body 1.

[0020] In summary, the composite earth-rock dam structure provided by the present application can effectively reduce the height of waves by adding a wave-breaking structure upstream of the traditional wave-breaking wall, and it does not affect the appearance. The drainage pipe is embedded at the bottom of the wave-breaking structure to discharge the accumulated water inside the structure in time. The wave-breaking structure is arranged perpendicular to the upstream dam surface and cast integrally with the wave-breaking wall. This structure does not affect the layout of the dam top, and as the dam height increases, the reduction in investment will become more and more obvious.

Claims

1. A composite earth-rock dam structure for water conservancy and hydropower engineering, comprising an earth-rock dam body (1), characterized in that: The composite earth-rock dam structure also includes a wave-proof and dissipation system, which is arranged on the top of the earth-rock dam body on the upstream side; the height of the stagnant water and waves is reduced and limited by the wave-proof and dissipation system.

2. The composite earth-rock dam structure for water conservancy and hydropower engineering according to claim 1 is characterized in that: An upstream climbing surface (2) is arranged on the upstream side of the earth-rock dam body, a dam body top platform surface is arranged on the top of the earth-rock dam body (1), and a wave-breaking and dissipating system is embedded on the earth-rock dam body (1) at the corner between the upstream climbing surface (2) and the dam body top platform surface.

3. The composite earth-rock dam structure for water conservancy and hydropower engineering according to claim 1 or 2, characterized in that: The wave-breaking and wave-dissipating system is a wave-breaking and wave-dissipating mechanism embedded in the earth-rock dam body (1) at the corner between the upstream climbing surface (2) and the platform surface at the top of the dam body.

4. The composite earth-rock dam structure for water conservancy and hydropower engineering according to claim 3 is characterized in that: The wave-breaking and dissipating mechanism comprises at least an inlay (3) and a wave-breaking wall (4), wherein the wave-breaking wall (4) is arranged at the corner between the upstream climbing surface (2) and the top platform surface of the dam body through the inlay (3).

5. The composite earth-rock dam structure for water conservancy and hydropower engineering according to claim 4 is characterized in that: The inlay (3) is a concrete inlay formed by cast-in-place concrete, and the wave-breaking wall (4) is a concrete wave-breaking wall formed by cast-in-place concrete.

6. The composite earth-rock dam structure for water conservancy and hydropower engineering according to claim 5 is characterized in that: The projection of the integrally formed concrete mosaic and concrete wave-breaking wall in the cross section is L-shaped. The concrete mosaic extends horizontally toward the downstream side and is embedded in the earth-rock dam body (1). The concrete wave-breaking wall extends vertically upward and is disposed on the upstream side of the top of the earth-rock dam body.

7. The composite earth-rock dam structure for water conservancy and hydropower engineering according to claim 6 is characterized in that: A concrete reinforcing body (5) is also arranged at the corner where the concrete mosaic and the concrete wave-breaking wall are connected to each other.

8. The composite earth-rock dam structure for water conservancy and hydropower engineering according to claim 7 is characterized in that: The wave-breaking and dissipating mechanism also includes a wave-breaking block (6), which is arranged perpendicularly to the upstream climbing surface (2) on the upstream side inlay at the corner of the inlay (3) and the wave-breaking wall (4).

9. The composite earth-rock dam structure for water conservancy and hydropower engineering according to claim 8 is characterized in that: The mosaic body (3) also has an extension block (7) extending from the wave-breaking wall toward the upstream side in the horizontal direction, and the wave-breaking block (6) is arranged on the upstream side of the mosaic body (3) through the extension block (7).

10. The composite earth-rock dam structure for water conservancy and hydropower engineering according to claim 9, characterized in that: A plurality of drainage holes (8) are also provided at the root of the wave-breaking block (6), and each drainage hole (8) is arranged on the wave-breaking block (6) along the length direction of the earth-rock dam body (1).

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