CN215629707U

CN215629707U - Reservoir dam bank structure

Info

Publication number: CN215629707U
Application number: CN202121335594.3U
Authority: CN
Inventors: 徐正铭; 石国远; 钟思梅; 张忠
Original assignee: Sinohydro Bureau 9 Co Ltd
Current assignee: Sinohydro Bureau 9 Co Ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-01-25
Anticipated expiration: 2031-06-16

Abstract

The utility model discloses a reservoir dam bank structure, comprising: the upstream face of the bank body is formed by the steps of 1: 2.0 slope inclined plane, the downstream face of the bank dam body is from the top of the bank dam body to the downstream bottom of the bank dam body with the ratio of 1: 1.4 inclined slope; an anti-sliding tooth socket is cast and built at the tail end of the front part of the upstream face, and a grouting curtain which penetrates into a rock foundation to prevent leakage is cast and built in the tooth socket; the downstream face rear end is slope 1: 0.5, a drainage prism is poured and constructed on the inclined plane at the tail end of the rear part of the downstream surface, and the inclination of the drainage prism close to the downstream outer surface is 1: a bevel of 0.3; the outer side of the inclined plane of the drainage arris body is divided into 1: 0.3 slope inclined wall. In the following steps of 1: 1.4 under the supporting effect of the downstream surface inclined at the inclination, the ratio of the downstream surface to the drainage arris body is 1: 0.5 inclined plane contact support, barricade and drainage arris body with 1: and 0.3, the inclined surface is in contact with the support, so that the whole bank body is stabilized.

Description

Reservoir dam bank structure

Technical Field

The utility model relates to a reservoir dam bank structure, and belongs to the technical field of reservoir bank structures.

Background

With the implementation of the strategy of the villages, in order to guarantee the production and living water of vast rural areas, the regulation and control of the production and living water are realized by building a reservoir; when the reservoir is built, the dam serves as a bank dam of a reservoir dam and bears the impact of the water body after water storage;

in a reservoir dam of chinese patent publication No. CN206396703U, the downstream side of the bank structure does not meet the requirements.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a reservoir dam bank structure.

The utility model is realized by the following technical scheme.

The utility model provides a reservoir dam bank structure, comprising: pouring a bank dam body built on the rock foundation, wherein the upstream face of the bank dam body is formed by pouring a mixture of 1: 2.0 slope inclined plane, the downstream face of the bank dam body is from the top of the bank dam body to the downstream bottom of the bank dam body with the ratio of 1: 1.4 inclined slope;

an anti-sliding tooth socket is cast and built at the tail end of the front part of the upstream face, and a grouting curtain which penetrates into a rock foundation to prevent leakage is cast and built in the tooth socket;

the downstream face rear end is slope 1: 0.5's inclined plane, the slant on inclined plane is by bank dam body lower left side upper right slope, pours on the terminal inclined plane of downstream face rear portion and has built the drainage arris body, and the drainage arris body is slope 1 by downstream outside face: a bevel of 0.3;

the outer side of the inclined plane of the drainage arris body is divided into 1: 0.3 slope inclined wall.

The retaining wall is 2m in thickness, and a PVC drain pipe for draining is buried inside the retaining wall.

The downstream surface is paved with a slope of 1: 1.67, the downstream surface is maintained by the turf protection slope.

And a wave wall is poured and constructed on the bank dam body at the top of the upstream face.

An internal dam buried pipe for taking and emptying water is buried in the dam body, the diameter of the internal dam buried pipe is 0.3m, a trash rack for blocking foreign matters and dirt is fixed at an inlet of the internal dam buried pipe positioned on the upstream face, a gate valve chamber is arranged at a water outlet of the internal dam buried pipe positioned on the downstream face, and two water outlet pipes are arranged in the gate valve chamber.

The dam internal buried pipe is wrapped with C20 concrete with the thickness of 0.2m around the inside of the dam body to form an outer wrapping layer, and the outer wrapping layer provides protection for the dam internal buried pipe.

The outer cladding layer is provided with a multi-section multidirectional extension section in the dam body, so that the flowing-down impact force of the buried pipe in the dam is uniformly distributed into the dam body, and the position stability of the buried pipe in the dam is ensured.

The dam body is a trapezoid-like body with the top width of 2m, and the upstream surface and the downstream surface extend towards the lower parts of the two sides.

And the upstream surface is provided with a composite layer with waterproof function, which is sequentially composed of a 10 cm-thick medium fine sand cushion layer, a composite geomembrane, a 10 cm-thick medium fine sand cushion layer and an 8 cm-thick concrete precast block protection slope.

The utility model has the beneficial effects that: after the reservoir impounds, the action of water gravity is 1: 2.0 slope upstream, part of the component of the water gravity presses vertically on the dam, at 1: 1.4 under the supporting effect of the downstream surface inclined at the inclination, the ratio of the downstream surface to the drainage arris body is 1: 0.5 inclined plane contact support, barricade and drainage arris body with 1: and the 0.3 inclined plane is in contact with and supported, so that the whole bank body is stable, and the downstream surface of the bank structure meets the requirements.

Drawings

FIG. 1 is a cross-sectional structural schematic view of the present invention;

in the figure: 1-a bank body; 11-upstream face; 12-a downstream face; 13-turf protection slope; 14-composite layer; 2-gullet; 3-grouting a curtain; 4-drainage prisms; 5-retaining wall; 6-wave wall; 7-burying the pipe in the dam; 71-outer cladding.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

As shown in fig. 1.

The utility model relates to a reservoir dam bank structure, comprising: pouring the dam body 1 built on the rock foundation, wherein the upstream face 11 of the dam body 1 is formed by the steps of from the top of the dam body 1 to the bottom of the upstream of the dam body 1 by 1: 2.0 slope inclined plane, the downstream face 12 of the bank body 1 is a plane inclined from the top of the bank body 1 to the bottom of the downstream of the bank body 1 by a ratio of 1: 1.4 inclined slope;

an anti-sliding tooth socket 2 is poured and built at the tail end of the front part of the upstream face 11, and a grouting curtain 3 which penetrates into a rock foundation to prevent leakage is poured and built in the tooth socket 2;

the downstream face 12 terminates aft at a pitch 1: 0.5, the slant on inclined plane is by bank dam 1 lower left side tilt up to the right, pours on the terminal inclined plane in downstream 12 rear portions and has built drainage arris body 4, and drainage arris body 4 is slope 1 by downstream outer face: a bevel of 0.3;

the outer side of the inclined plane of the drainage arris body 4 is divided into 1: 0.3 slope inclined retaining wall 5.

After the reservoir impounds, the action of water gravity is 1: on the upstream face 11 of 2.0 slope, a part of component force of the water gravity vertically presses on the dam body 1, and meanwhile, in the ratio of 1: 1.4 supporting the inclined downstream surface 12, the ratio of the downstream surface 12 to the drainage edge 4 is 1: 0.5, the retaining wall 5 and the drainage arris body 4 are supported in a way of 1: and the inclined plane is in contact support with the inclined plane 0.3, so that the whole body of the bank dam body 1 is stable, and the downstream surface of the bank dam structure meets the requirement.

The thickness of the retaining wall 5 is 2m, and a PVC drain pipe for draining water is buried inside the retaining wall.

The downstream face 12 is laid with a pitch of 1: 1.67, the downstream surface 12 is kept by the turf protection 13.

And a wave wall 6 is poured and constructed on the bank dam body 1 at the top of the upstream surface 11.

An internal dam buried pipe 7 for taking and emptying water is buried in the dam body 1, the diameter of the internal dam buried pipe 7 is 0.3m, a trash rack for blocking foreign matters and dirt is fixed at an inlet of the internal dam buried pipe 7 on the upstream face 11, a gate valve chamber is arranged at a water outlet of the internal dam buried pipe 7 on the downstream face 12, and the gate valve chamber is internally divided into two water outlet pipes which are respectively an emptying pipe and a water taking pipe; the diameter of the emptying pipe is phi 0.3m, the downstream river channel is connected behind the emptying pipe, the emptying pipe is also used as an ecological water drain pipe, and an emptying pipe gate valve is adopted to slightly open water; the diameter of the water intake pipe is phi 0.3m, and the water intake of the reservoir is controlled by adopting a gate valve.

The dam internal buried pipe 7 is wrapped by C20 concrete with the thickness of 0.2m around the inside of the dam body 1 to form an outer wrapping layer 71, and the outer wrapping layer 71 provides protection for the dam internal buried pipe 7.

The outer cladding layer 71 is provided with a multi-section multidirectional extension section in the dam body 1, so that the flowing-down impact force of the buried pipe 7 in the dam is uniformly distributed into the dam body 1, and the position stability of the buried pipe 7 in the dam is ensured.

The bank body 1 is a trapezoid-like body with the top width of 2m, and the upstream surface 11 and the downstream surface 12 extend towards the lower parts of two sides.

And a composite layer 14 with a waterproof function, which is sequentially composed of a 10 cm-thick medium fine sand cushion layer, a composite geomembrane, a 10 cm-thick medium fine sand cushion layer and an 8 cm-thick concrete precast block protection slope, is arranged on the upstream surface 11.

Claims

1. A reservoir dam bank structure, comprising: the upper reaches face (11) of the bank dam body (1) is from the top of the bank dam body (1) to the bottom of the upper reaches of the bank dam body (1) with 1: 2.0 slope inclined plane, the downstream face (12) of the dam body (1) is the inclined plane from the top of the dam body (1) to the downstream bottom of the dam body (1) with the ratio of 1: 1.4 inclined slope;

the tail end of the front part of the upstream surface (11) is provided with an anti-sliding gullet (2), and the gullet (2) is provided with a grouting curtain (3) penetrating into a rock foundation;

the rear end of the downstream surface (12) has a slope 1: 0.5's inclined plane, the slant on inclined plane is by bank dam body (1) lower left side tilt up to the right, pours on the terminal inclined plane of low reaches face (12) rear portion and builds drainage arris body (4), drainage arris body (4) are slope 1 by downstream outer face: a bevel of 0.3;

the outer side of the inclined plane of the drainage arris body (4) is divided into 1: 0.3 slope inclined retaining wall (5).

2. The reservoir dam structure of claim 1, wherein: the thickness of the retaining wall (5) is 2m, and a PVC drain pipe for draining water is buried inside the retaining wall.

3. The reservoir dam structure of claim 1, wherein: the downstream surface (12) is laid with a pitch of 1: 1.67 turf slope protection (13).

4. The reservoir dam structure of claim 1, wherein: the dam body (1) at the top of the upstream face (11) is provided with a wave wall (6).

5. The reservoir dam structure of claim 1, wherein: an internal dam buried pipe (7) for taking and emptying water is buried in the dam body (1), a trash rack for blocking foreign matters and dirt is fixed at an inlet of the internal dam buried pipe (7) on the upstream face (11), a gate valve chamber is arranged at a water outlet of the internal dam buried pipe (7) on the downstream face (12), and the gate valve chamber is internally divided into two water outlet pipes which are an emptying pipe and a water taking pipe respectively.

6. The reservoir dam structure of claim 5, wherein: the dam internal buried pipe (7) is coated outside the periphery of the interior of the dam body (1) to form an outer cladding layer 71.

7. The reservoir dam structure of claim 6, wherein: the outer cladding layer 71 is provided with a multi-section multidirectional extension section inside the dam body (1) to evenly distribute the water flowing-down impact force in the buried pipe (7) in the dam into the dam body (1).

8. The reservoir dam structure of claim 1, wherein: the dam body (1) is a trapezoid-like body with the top width of 2m, and the upstream face (11) and the downstream face (12) extend towards the lower parts of the two sides in an expanding way.

9. The reservoir dam structure of claim 1, wherein: and the upstream surface (11) is provided with a composite layer (14) which is composed of a medium fine sand cushion layer, a composite geomembrane, a medium fine sand cushion layer and a concrete precast block protection slope in sequence and has a waterproof effect.