Torrent chute structure for drainage and energy dissipation of channel slope

Abstract

The utility model relates to a torrent chute structure for drainage and energy dissipation of a channel side slope, which comprises a retaining wall structure arranged at a pipeline outlet at the top of the side slope and a U-shaped chute body arranged between the top of the side slope and a channel, and the U-shaped chute body extends into the channel along the side slope. The U-shaped groove body comprises a plurality of side slope section bottom plates, a plurality of straight section bottom plates and concrete side walls located on the two sides, the side slope section bottom plates and the straight section bottom plates are sequentially and alternately connected, the side slope section bottom plates are in a step shape and make contact with a side slope, and the concrete side walls are arranged on the two sides of the side slope section bottom plates and the two sides of the straight section bottom plates respectively. The retaining wall structure, the U-shaped groove body, the side slope and the soil bodies on the two sides are organically combined, the occupied area can be effectively reduced, the project investment is saved, and the requirement for a construction site is lowered; the U-shaped structure is embedded into the channel side slope and forms a whole with the side slope, the surrounding environment is not influenced, the side slope is prevented from being scoured by water discharged from the pipeline, and the structure is simple, attractive and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal facilities, in particular to a rapid flow trough structure used for drainage and energy dissipation of channel slopes. Background Art

[0002] When the drainage pipe is connected to the open channel, if it is connected directly from the bottom of the channel, the depth of the pipe will be deepened, increasing the cost of the construction project; if the pipe is not deepened and connected from the channel slope, the water flow in the pressurized drainage pipe will scour the channel slope, which will not only affect the landscape and environment around the channel, but also may cause the slope to become unstable and cause safety hazards. In order to protect and manage the channel to the greatest extent and not affect the urban or rural landscape, it is necessary to reasonably combine the drainage facilities with the channel slope, make full use of their respective advantages, and design a more effective and more comprehensive drainage and energy dissipation rapids trough structure. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a rapid flow trough structure for drainage and energy dissipation of channel slopes in view of the deficiencies of the above-mentioned prior art.

[0004] The utility model solves the above technical problems with the following technical solutions: a rapid flow trough structure for drainage and energy dissipation of channel slopes, comprising a retaining wall structure arranged at a pipe outlet at the top of the slope, and a U-shaped trough body arranged between the top of the slope and the channel, wherein the U-shaped trough body extends into the channel along the slope, the U-shaped trough body is located below the outlet of the pipe, and the U-shaped trough body is located between soil bodies on both sides;

[0005] The U-shaped trough body includes multiple slope section bottom plates, multiple straight section bottom plates and concrete side walls on both sides. The slope section bottom plates are alternately connected in sequence. The slope section bottom plates are stepped and arranged in contact with the slope. The top and bottom of the slope surface of the slope are both the slope section bottom plates. The concrete side walls are respectively arranged on both sides of the slope section bottom plate and the straight section bottom plate.

[0006] The beneficial effects of the utility model are as follows: the rapid flow trough structure for drainage and energy dissipation on the channel slope of the utility model can effectively reduce the land occupation, save engineering investment, and reduce the demand for construction site by organically combining the retaining wall structure, the U-shaped trough body with the slope and the soil on both sides; the U-shaped structure is embedded in the channel slope to form a whole with the slope, does not affect the surrounding environment, avoids the scouring of the slope by the pipeline water outlet, is simple, beautiful and practical; and can withstand vertical loads without affecting the water flow through the U-shaped trough body of the rapid flow trough for pedestrian use.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows:

[0008] Further: the bottom of the U-shaped trough is located at the surface of the slope section bottom plate and the straight section bottom plate, and energy dissipation ridge structures are respectively arranged.

[0009] The beneficial effect of the above further solution is that by setting the energy dissipation sill structure, the energy can be effectively dissipated while ensuring the normal passage of water, and the function is complete.

[0010] Further: the energy dissipation step structure is in the shape of concrete steps.

[0011] The beneficial effect of the above further solution is that the vertical drop sill can effectively reduce the speed of water flow and achieve the purpose of energy dissipation by adopting a concrete step-shaped energy dissipation sill structure.

[0012] Further: a horseway is provided at the upper end of the U-shaped trough body located at the straight section bottom plate.

[0013] The beneficial effect of the above further scheme is that by setting up a horseway, it can withstand vertical loads and be used for pedestrians to pass without affecting the flow of water through the U-shaped trough body of the rapids trough.

[0014] Further: the surface of the horseway is provided with a movable cover which can be opened or closed.

[0015] The beneficial effect of the above further solution is: by setting the movable cover plate across the rapids trough body, it is ensured that the rapids trough is drained smoothly without affecting the passage of people.

[0016] Further: the movable cover plate adopts a reinforced concrete structure.

[0017] The beneficial effect of the above further solution is that the reinforced concrete structure can withstand vertical loads and be used by pedestrians.

[0018] Further: A bottom protection structure is provided at the junction of the U-shaped trough body and the channel.

[0019] The beneficial effect of the above further solution is that by providing the bottom protection structure, the channel bottom can be reinforced to prevent long-term scouring by water flow that affects the stability of the slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a rapid flow trough structure for channel slope drainage and energy dissipation according to an embodiment of the utility model;

[0021] Figure 2 The figure is a schematic structural diagram of a U-shaped trough body according to an embodiment of the present invention.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Pipeline, 2. Retaining wall structure, 3. U-shaped trough, 4. Movable cover plate, 5. Energy dissipation sill structure, 6. Bottom protection mechanism;

[0024] 31. Slope section bottom plate, 32. Straight section bottom plate, 33. Side wall;

[0025] 001, top of the slope, 002, channel slope, 003, channel. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] like Figure 1 As shown, a rapid trough structure for drainage and energy dissipation of channel slopes comprises a retaining wall structure 2 arranged at the outlet of a pipe 1 at the top of a slope 001, and a U-shaped trough body 3 arranged between the top of the slope 001 and a channel 003, wherein the U-shaped trough body 3 extends along the slope 001 into the channel 003, the U-shaped trough body 3 is located below the outlet of the pipe 1, and the U-shaped trough body 3 is located between soil bodies 002 on both sides;

[0028] like Figure 2 As shown, the U-shaped trough body 3 includes a plurality of slope section bottom plates 31, a plurality of straight section bottom plates 32 and concrete side walls 33 located on both sides, the slope section bottom plates 31 and the straight section bottom plates 32 are connected alternately in sequence, the slope section bottom plates 31 are stepped and arranged in contact with the slope 001, and the top and bottom of the slope surface located at the slope 001 are both the slope section bottom plates 31, and the concrete side walls 33 are respectively arranged on both sides of the slope section bottom plates 31 and the straight section bottom plates 32.

[0029] The utility model discloses a rapid flow trough structure for drainage and energy dissipation on the channel slope, which can effectively reduce land occupation, save engineering investment, and reduce the demand for construction site by organically combining the retaining wall structure 2, the U-shaped trough body 3 with the slope 001 and the soil bodies 002 on both sides; the U-shaped structure is embedded in the channel slope 001, forming a whole with the slope 001, without affecting the surrounding environment, avoiding the scouring of the slope by the water outlet of the pipeline 1, and is simple, beautiful, and practical; under the premise of not affecting the water flow through the U-shaped trough body 3 of the rapid flow trough, it can withstand vertical loads and be used by pedestrians.

[0030] In one or more embodiments of the utility model, the retaining wall structure 2 mainly bears the water and soil pressure between the top height of the slope 001 and the pipeline 1, and the cross-section of the retaining wall structure 2 can be adjusted according to the height of the retaining wall; according to Article 11.3.5 of GB 50330-2013 "Technical Specification for Building Slope Engineering", the burial depth of the bottom of the retaining wall structure relative to the trench bottom elevation is generally not less than 0.5m, and the gravity retaining wall can be made of plain concrete, mortar-laid stone or rough stone concrete; the form of the retaining wall structure 2 can be flexibly adjusted according to the on-site conditions, and specifically, a gravity retaining wall, a cantilever reinforced concrete retaining wall, a pile retaining wall, etc. can be used, and the structural form is flexible and changeable according to local conditions.

[0031] In one or more embodiments of the utility model, the bottom of the U-shaped trough 3 is located on the surface of the slope section bottom plate 31 and the straight section bottom plate, respectively, and an energy dissipation sill structure 5 is provided. By providing the energy dissipation sill structure 5, the energy can be effectively dissipated while ensuring the normal passage of water flow, and the function is complete.

[0032] In practice, the U-shaped trough 3 is arranged below the outlet of the pipeline 1, and is mainly a flow channel for water flow. The height and width of the rapids trough are determined according to the channel slope, the diameter of the pipeline 1, and the water outlet flow rate, to ensure that the water flow does not flip over the U-shaped trough 3; the U-shaped trough 3 of the rapids trough is composed of a slope section bottom plate 31, a straight section bottom plate 32, and side walls 33 on both sides, and generally adopts a plain concrete structure; the slope section bottom plate 31 can be stably set on the channel slope, and the step size is determined according to the slope soil quality, and a gravel cushion layer can be set at the bottom of the bottom plate as needed; the length of the straight section bottom plate 32 is determined according to the width of the horseway; the side walls 33 mainly bear the water and soil pressure of the channel slopes 002 on both sides; according to Article 7.2.1 of the "Design Standard for Buried Rectangular Pipe Pipeline Structures for Water Supply and Drainage Engineering" T / CECS145:2022, the thickness of the component should not be less than 200mm. If the height and width of the U-shaped trough 3 are large, a reinforced concrete structure can be adopted to improve the structural bearing capacity.

[0033] Optionally, in one or more embodiments of the present invention, the energy dissipation sill structure 5 is in the shape of concrete steps. With the concrete step-shaped energy dissipation sill structure 5, the vertical drop sill can effectively reduce the speed of the water flow and achieve the purpose of energy dissipation.

[0034] It should be particularly pointed out that the energy dissipation step structure 5 can be made of plain concrete; the energy dissipation step structure 5 is arranged along the entire length of the rapids trough, and is a multi-step step structure that can effectively dissipate water energy, and the size of the steps is determined according to the water flow velocity and the slope of the channel slope 002.

[0035] In one or more embodiments of the utility model, the U-shaped trough body 3 is provided with a horseway at the upper end of the straight section bottom plate 32. By providing the horseway, the vertical load can be borne without affecting the flow of water through the U-shaped trough body 3 of the rapids trough, and pedestrians can pass through.

[0036] In one or more embodiments of the utility model, the surface of the horseway is provided with an openable or closable movable cover 4. By providing the movable cover 4, across the rapids tank body, it is ensured that the rapids tank is drained smoothly without affecting the passage of people.

[0037] Optionally, in one or more embodiments of the utility model, the movable cover plate 4 adopts a reinforced concrete structure. The reinforced concrete structure can withstand vertical loads and is used for pedestrians to pass. The movable cover plate 4 has a certain vertical bearing capacity and can adopt a reinforced concrete structure, a steel cover plate, a ductile iron cover plate, etc., which can be flexibly selected according to needs.

[0038] In one or more embodiments of the utility model, a bottom protection structure 6 is provided at the junction of the U-shaped trough 3 and the channel 003. By providing the bottom protection structure 6, the channel bottom can be reinforced to prevent the long-term scouring of water flow from affecting the stability of the slope. When the water flow scours the channel bottom, it will not affect the stability of the channel slope; the bottom protection structure 6 is generally made of 300mm thick plain concrete or mortar-laid flagstones, and its range is determined according to the water flow velocity in the channel, generally 3-10m.

[0039] In one or more embodiments of the utility model, the pipeline 1, retaining wall structure 2, U-shaped trough body 3 of the rapids trough, movable cover plate 4, energy dissipation sill structure 5 and bottom protection structure 6 must be effectively connected to ensure the integrity of the structure and necessary functions.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rapid flow trough structure for drainage and energy dissipation of channel slopes, characterized in that: It comprises a retaining wall structure (2) arranged at the outlet of a pipeline (1) at the top of a slope (001), and a U-shaped trough (3) arranged between the top of the slope (001) and a channel (003), wherein the U-shaped trough (3) extends along the slope (001) into the channel (003), the U-shaped trough (3) is located below the outlet of the pipeline (1), and the U-shaped trough (3) is located between soil bodies (002) on both sides; The U-shaped trough (3) comprises a plurality of side slope section bottom plates (31), a plurality of straight section bottom plates (32) and concrete side walls (33) located on both sides. The side slope section bottom plates (31) and the straight section bottom plates (32) are connected alternately in sequence. The side slope section bottom plates (31) are stepped and arranged in contact with the side slope (001). The top and bottom of the slope surface located on the side slope (001) are both the side slope section bottom plates (31). The concrete side walls (33) are respectively arranged on both sides of the side slope section bottom plates (31) and the straight section bottom plates (32).

2. The rapid flow trough structure for channel slope drainage and energy dissipation according to claim 1 is characterized in that: The bottom of the U-shaped trough (3) is located at the surface of the slope section bottom plate (31) and the straight section bottom plate, and energy dissipation ridge structures (5) are respectively provided.

3. The rapid flow trough structure for channel slope drainage and energy dissipation according to claim 2 is characterized in that: The energy dissipation step structure (5) is in the shape of a concrete step.

4. The rapid flow trough structure for channel slope drainage and energy dissipation according to claim 2, characterized in that: The U-shaped trough body (3) is provided with a horseway at the upper end of the straight section bottom plate (32).

5. The rapid flow trough structure for channel slope drainage and energy dissipation according to claim 4, characterized in that: The surface of the horseway is provided with a movable cover plate (4) which can be opened or closed.

6. The rapid flow trough structure for channel slope drainage and energy dissipation according to claim 5, characterized in that: The movable cover plate (4) adopts a reinforced concrete structure.

7. The rapid flow trough structure for channel slope drainage and energy dissipation according to any one of claims 1 to 6, characterized in that: A bottom protection structure (6) is provided at the junction between the U-shaped trough body (3) and the channel (003).

Images