Earth and rockfill dam composite protection structure and system
By using anchoring components and seepage prevention components in earth-rock dams, the problems of core wall displacement and leakage were solved, the stability and seepage prevention capacity of earth-rock dams were improved, and the safety of the dam body was ensured.
Patent Information
- Application Number
- CN202520149510.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Earth-rock dams are prone to relative displacement of the core wall during long-term use, leading to cracks and reduced seepage prevention capabilities.
Anchoring components (including anchor plates and anchor rods) are used to apply tension to the core wall, and the stability of the core wall is enhanced by combining anti-seepage components (anti-seepage trench, anti-seepage layer and expansion layer), and rainwater leakage is prevented by protective components (water-conducting layer and planting layer).
It effectively avoids relative displacement and cracking of the core wall, enhances the stability and seepage prevention performance of earth-rock dams, and ensures the stability of downstream dam bodies.
Smart Images
Figure CN223907449U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to earth and rockfill dam engineering technical field, especially an earth and rockfill dam composite protection structure and system. BACKGROUND
[0002] Earth and rockfill dam is by earth material, stone material or mixed material, the dam that is piled up by throwing, rolling pressure etc., earth and rockfill dam gradually becomes the dam type that is most widely used and develops fastest in world dam engineering construction because of its local material, simple structure, convenient maintenance and heightening, low cost characteristics.
[0003] However, earth and rockfill dam has multiple conditions of destroying the stability of earth and rockfill dam in the process of long-term use, wherein the most frequent and most serious damage form is sliding failure. The existing earth and rockfill dam protection structure still has the problem that the core wall will have relative displacement under the action of water body and cracks are prone to occur, resulting in the decline of anti-seepage capacity. SUMMARY
[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.
[0005] In view of the above or the problem that the core wall is prone to relative displacement and cracks in the prior art, the utility model is proposed.
[0006] Therefore, the purpose of the utility model is to provide an earth and rockfill dam composite protection structure and system.
[0007] To solve the above technical problems, the utility model provides the following technical scheme: a dam body, including a core wall arranged at the bottom of the riverbed, an upstream dam body and a downstream dam body arranged on both sides of the core wall respectively; an anchor assembly, including an anchor plate and an anchor rod, the anchor plate is arranged in the riverbed, and the two ends of the anchor rod are fixedly connected with the anchor plate and the core wall respectively; a protection assembly arranged on the outer side of the downstream dam body.
[0008] As a preferred scheme of the earth and rockfill dam composite protection structure of the utility model, the utility model further comprises an anti-seepage assembly, the anti-seepage assembly comprises an anti-seepage groove opened on the riverbed, an anti-seepage layer arranged on the outer side of the core wall, and an expansion layer arranged between the anti-seepage groove and the anti-seepage layer, and the bottom of the core wall is arranged in the anti-seepage groove.
[0009] As a preferred scheme of the earth-rock dam composite protection structure, the anchor pull plate is vertically arranged, the anchor pull rod is arranged obliquely to the horizontal plane and is fixedly connected with the anchor pull plate and the core wall at two ends.
[0010] As a preferred scheme of the earth-rock dam composite protection structure, the protection assembly comprises a water guide layer and a planting layer arranged on the downstream dam body in sequence from inside to outside.
[0011] As a preferred scheme of the earth-rock dam composite protection structure, the water guide layer comprises a geomembrane arranged on the downstream dam body and a gravel layer arranged on the geomembrane.
[0012] As a preferred scheme of the earth-rock dam composite protection structure, one side of the core wall is fixedly provided with an upper anchor pier and a lower anchor pier, and the upper anchor pier and the lower anchor pier are arranged at intervals.
[0013] As a preferred scheme of the earth-rock dam composite protection structure, an anchor pull column is further arranged between the upper anchor pier and the lower anchor pier.
[0014] As a preferred scheme of the earth-rock dam composite protection structure, the included angle between the anchor pull rod and the horizontal plane ranges from 30° to 60°.
[0015] As a preferred scheme of the earth-rock dam composite protection structure, the anchor pull column is internally provided with a steel bar fixedly connected with the upper anchor pier and the lower anchor pier at two ends.
[0016] To solve the above technical problems, the utility model also provides the following technical scheme: a kind of earth-rock dam composite protection system comprising the earth-rock dam composite protection structure described above.
[0017] The utility model has the advantages that: by setting anchor pull plate, anchor pull rod, tension is applied to core wall, the stability of core wall is guaranteed, so as to avoid core wall to occur crack by relative displacement, and the impermeable function between core wall and riverbed is guaranteed by combining impermeable layer and expansion layer, to avoid leakage;The planting layer and the water guide layer can guide the flow of rainwater, prevent rainwater from entering the downstream dam body, and ensure the stability of the downstream dam body. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor. Among them:
[0019] Figure 1 It is a whole schematic view of the earth-rock dam composite protection structure.
[0020] Figure 2 It is a schematic view of the core wall of the earth-rock dam composite protection structure. DETAILED DESCRIPTION
[0021] In order to make the above objectives, characteristics and advantages of the present application more apparent, concrete embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0022] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other manners different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited to the specific embodiments disclosed below.
[0023] Secondly, the "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent or alternative to other embodiments.
[0024] Reference Figure 1 The present embodiment provides an earth-rock dam composite protection structure, which comprises a dam body 1, an anchor pulling assembly 2 and a protection assembly 3.
[0025] Specifically, the dam body 1 comprises a core wall 11 arranged at the bottom of a riverbed, an upstream dam body 12 and a downstream dam body 13 arranged on both sides of the core wall 11 respectively; the anchor pulling assembly 2 comprises an anchor pulling plate 21 and an anchor pulling rod 22, the anchor pulling plate 21 is arranged in the riverbed, and both ends of the anchor pulling rod 22 are fixedly connected with the anchor pulling plate 21 and the core wall 11 respectively; the protection assembly 3 is arranged on the outside of the downstream dam body 13. The upstream dam body 12 and the downstream dam body 13 and the dam top are arranged on the outside of the core wall 11 to wrap the core wall 11 to form a protection structure, the anchor pulling plate 21 is arranged vertically, the anchor pulling rod 22 is arranged obliquely to the horizontal plane and both ends thereof are fixedly connected with the anchor pulling plate 21 and the core wall 11 respectively, the anchor pulling plate 21 exerts pulling force on the core wall through the anchor pulling rod 22 to avoid displacement of the core wall under the impact of water flow.
[0026] Further, the protection assembly 3 is laid on the upper side of the downstream dam body 13 to prevent rainwater from seeping.
[0027] Preferably, the core wall 11 adopts a reinforced concrete structure, and the cross-sectional shape of the core wall 11 is trapezoidal.
[0028] In use, the dam body 1 and the water body generate pressure on the anchor-pulling assembly 2, so that the anchor-pulling assembly 2 generates pulling force on the core wall 11, to ensure that the core wall does not generate relative displacement, and the protection assembly 3 falls on the rainwater on the downstream dam body 13 to guide the rainwater, to avoid the rainwater from entering the dam body 1.
[0029] In summary, the stability of the core wall is enhanced by the use of the anchor-pulling assembly, to avoid relative displacement, cracks and leakage, and the stability of the downstream dam body is ensured by the use of the protection assembly 3.
[0030] As an optional embodiment, the anchor-pulling assembly 2 of the earth-rock dam composite protection structure solves the problem that the core wall 11 is prone to relative displacement.
[0031] Referring to Figure 1 and Figure 2 , the anchor-pulling assembly 2 comprises an anchor-pulling plate 21 and an anchor-pulling rod 22, the anchor-pulling plate 21 is arranged in the riverbed, and the two ends of the anchor-pulling rod 22 are fixedly connected with the anchor-pulling plate 21 and the core wall 11 respectively; one side of the core wall 11 is fixedly provided with an upper anchor pier 111 and a lower anchor pier 112, and the upper anchor pier 111 is arranged at intervals with the lower anchor pier 112. An anchor-pulling column 113 is further arranged between the upper anchor pier 111 and the lower anchor pier 112. The end of the anchor-pulling rod 22 is fixedly connected with the lower anchor pier 112, the anchor-pulling plate 21 generates action force against the riverbed, the upstream dam body 12 and the water body exert pressure on the anchor-pulling plate 21, so that the anchor-pulling plate 21 transmits pulling force to the lower anchor pier 112 through the anchor-pulling rod 22, and the lower anchor pier 112 transmits the pulling force to the upper anchor pier 111, thereby generating pulling force on the entire core wall 11.
[0032] Further, the upper anchor pier 111 is arranged at one end of the core wall 11 close to the dam top, and the lower anchor pier 112 is arranged at one end of the core wall 11 close to the riverbed. The anchor-pulling column 113 is a pre-stressed reinforced concrete column, and the upper anchor pier 111, the lower anchor pier 112 and the anchor-pulling column 113 are integrally poured.
[0033] The anchor-pulling column 113 is a pre-stressed reinforced concrete column, and the upper anchor pier 111, the lower anchor pier 112 and the anchor-pulling column 113 are integrally poured.
[0034] Preferably, the included angle between the anchor-pulling rod 22 and the horizontal plane ranges from 30° to 60°.
[0035] Preferably, the length of the upper anchor pier 111 is less than the length of the lower anchor pier 112, so that the anchor column 113 is inclined relative to the center of the core wall 11.
[0036] Preferably, the anchor plate 21 is a cast-in-place concrete plate, and the anchor rod 22 is a cast-in-place concrete column, and the anchor plate 21 and the anchor rod 22 can be cast simultaneously.
[0037] In summary, the anchor assembly 2 exerts a pulling force on the core wall 11, ensuring the stability of the core wall 11 and preventing relative displacement of the core wall 11 from causing cracks.
[0038] As an optional embodiment, the embodiment provides the anti-seepage assembly 4 and the protection assembly 3 of the earth-rock dam composite protection structure, solving the problem of easy seepage between the core wall and the riverbed.
[0039] As shown in Figure 1 , the anti-seepage assembly 4 includes an anti-seepage trench 41 opened on the riverbed, an anti-seepage layer 42 arranged outside the core wall 11, and an expansion layer 43 arranged between the anti-seepage trench 41 and the anti-seepage layer 42. The bottom of the core wall 11 is arranged in the anti-seepage trench 41. The anti-seepage trench 41 cooperates with the bottom of the core wall 11 to prevent water from seeping into the core wall 11.
[0040] Further, the anti-seepage layer 42 wraps the entire core wall 11, including the upper anchor pier 111, the lower anchor pier 112, and the anchor column 113. The material of the anti-seepage layer 42 is a geomembrane, and the expansion layer 43 is made of a water-absorbing and expanding material.
[0041] The protection assembly 3 includes a water guide layer 31 and a planting layer 32 arranged on the downstream dam body 13 from inside to outside.
[0042] Preferably, the gravel layer 312 is divided into two layers, one layer close to the geomembrane 311 has larger particle size, and the other layer away from the geomembrane 311 has smaller particle size.
[0043] Preferably, the planting layer 32 is arranged on the layer of the gravel layer 312 with smaller particle size.
[0044] In use, rainwater falls on the planting layer 32 and moves downward through the planting layer 32 and the gravel layer 312, and is prevented from entering the downstream dam body 13 by the shielding of the geomembrane 311, ensuring the stability of the downstream dam body 13.
[0045] In summary, the anti-seepage assembly is provided to ensure the anti-seepage function between the core wall and the riverbed, avoiding seepage, and the planting layer and the water guide layer are provided to guide rainwater, avoiding entering the downstream dam body 13, and enhancing the stability of the dam body.
[0046] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the novel teachings and advantages of the subject matter described herein. For example, elements described as integrated in a single unit can be separated, elements described as separate can be integrated, and the position, number, shape, and arrangements of elements can be varied. Accordingly, all such modifications are intended to be included within the scope of the present inventive subject matter. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the general nature of the claims. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functionality and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to the particular embodiments described and illustrated herein, but extends to equivalents of which the foregoing describes are intended to cover.
[0047] Furthermore, in order to provide a concise description of the exemplary embodiments, not all features of an actual implementation can be described (i.e., those related to the
[0048] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can inevitably lead to modifications, which can be different from those suggested herein, and still fall within the scope of the inventive subject matter. Those skilled in the art will appreciate that the development of any such modifications to the inventive subject matter that nevertheless fall within the scope of the inventive subject matter will be predicated on the
[0049] It should be noted that the above examples are intended to be illustrative only and not limiting of the present inventive subject matter. Although the present inventive subject matter has been described in detail with reference to particular embodiments, it will be understood that various modifications can be made without departing from the spirit of the present inventive subject matter, and that such modifications are intended to be included within the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to the particular embodiments described but extends to equivalents of which the foregoing descriptions are intended to cover.
Claims
1. A compound protection structure of earth-rockfill dam, fixedly arranged on a riverbed, characterized in that: The dam body (1) comprises a core wall (11) arranged at the bottom of the riverbed, an upstream dam body (12) and a downstream dam body (13) arranged on both sides of the core wall (11) respectively; The anchoring assembly (2) comprises an anchoring plate (21) arranged in the riverbed and an anchoring rod (22) fixedly connected with the anchoring plate (21) and the core wall (11) at both ends respectively; The protection assembly (3) is arranged outside the downstream dam body (13). The dam body further comprises a seepage-proof assembly (4) comprising a seepage-proof groove (41) arranged on the riverbed, a seepage-proof layer (42) arranged outside the core wall (11), and an expansion layer (43) arranged between the seepage-proof groove (41) and the seepage-proof layer (42), wherein the bottom of the core wall (11) is arranged in the seepage-proof groove (41).
2. The earth-rockfill dam composite protection structure according to claim 1, characterized in that: The anchoring plate (21) is arranged vertically, and the anchoring rod (22) is arranged obliquely to the horizontal plane and fixedly connected with the anchoring plate (21) and the core wall (11) at both ends respectively.
3. The earth-rockfill dam composite protection structure according to claim 1 or 2, characterized in that: The protection assembly (3) comprises a water guide layer (31) and a planting layer (32) arranged on the downstream dam body (13) from inside to outside.
4. The earth-rockfill dam composite protection structure according to claim 3, characterized in that: The water guide layer (31) comprises a geomembrane (311) arranged on the downstream dam body (13) and a gravel layer (312) arranged on the geomembrane (311).
5. The earth-rockfill dam composite protection structure according to claim 4, characterized in that: One side of the core wall (11) is fixedly provided with an upper anchoring pier (111) and a lower anchoring pier (112), and the upper anchoring pier (111) and the lower anchoring pier (112) are arranged at intervals.
6. The earth-rockfill dam composite protection structure according to claim 4 or 5, characterized in that: An anchoring column (113) is further arranged between the upper anchoring pier (111) and the lower anchoring pier (112).
7. The earth-rockfill dam composite protection structure according to claim 6, characterized in that: The anchoring rod (22) and the horizontal plane form an angle in the range of 30°-60°.
8. The earth-rockfill dam composite protection structure according to claim 7, characterized in that: The anchoring column (113) is internally provided with a steel bar fixedly connected with the upper anchoring pier (111) and the lower anchoring pier (112) at both ends respectively.
9. The earth-rockfill dam composite protection structure according to claim 8, characterized in that: The dam body further comprises a seepage-proof assembly (4) comprising a seepage-proof groove (41) arranged on the riverbed, a seepage-proof layer (42) arranged outside the core wall (11), and an expansion layer (43) arranged between the seepage-proof groove (41) and the seepage-proof layer (42), wherein the bottom of the core wall (11) is arranged in the seepage-proof groove (41).
10. An earth and rockfill dam composite protection system, characterized in that: The anchoring plate (21) is arranged vertically, and the anchoring rod (22) is arranged obliquely to the horizontal plane and fixedly connected with the anchoring plate (21) and the core wall (11) at both ends respectively. The protection assembly (3) comprises a water guide layer (31) and a planting layer (32) arranged on the downstream dam body (13) from inside to outside. The water guide layer (31) comprises a geomembrane (311) arranged on the downstream dam body (13) and a gravel layer (312) arranged on the geomembrane (311). One side of the core wall (11) is fixedly provided with an upper anchoring pier (111) and a lower anchoring pier (112), and the upper anchoring pier (111) and the lower anchoring pier (112) are arranged at intervals. An anchoring column (113) is further arranged between the upper anchoring pier (111) and the lower anchoring pier (112). The anchoring rod (22) and the horizontal plane form an angle in the range of 30°-60°. The anchoring column (113) is internally provided with a steel bar fixedly connected with the upper anchoring pier (111) and the lower anchoring pier (112) at both ends respectively. The dam body further comprises a seepage-proof assembly (4) comprising a seepage-proof groove (41) arranged on the riverbed, a seepage-proof layer (42) arranged outside the core wall (11), and an expansion layer (43) arranged between the seepage-proof groove (41) and the seepage-proof layer (42), wherein the bottom of the core wall (11) is arranged in the seepage-proof groove (41). The anchoring plate (21) is arranged vertically, and the anchoring rod (22) is arranged obliquely to the horizontal plane and fixedly connected with the anchoring plate (21) and the core wall (11) at both ends respectively. The protection assembly (3) comprises a water guide layer (31) and a planting layer (32) arranged on the downstream dam body (13) from inside to outside. The water guide layer (31) comprises a geomembrane (311) arranged on the downstream dam body (13) and a gravel layer (312) arranged on the geomembrane (311). One side of the core wall (11) is fixedly provided with an upper anchoring pier (111) and a lower anchoring pier (112), and the upper anchoring pier (111) and the lower anchoring pier (112) are arranged at intervals. An anchoring column (113) is further arranged between the upper anchoring pier (111) and the lower anchoring pier (112). The anchoring rod (22) and the horizontal plane form an angle in the range of 30°-60°. The anchoring column (113) is internally provided with a steel bar fixedly connected with the upper anchoring pier (111) and the lower anchoring pier (112) at both ends respectively.