CN217998109U - Water and soil retaining structure of backwater slope of soil dike - Google Patents

Abstract

The invention discloses a water and soil retaining structure of a backwater slope of a soil dike, wherein the backwater slope of the soil dike is of a step type and comprises a retaining wall, the retaining wall is arranged on the side, close to the empty, of a step, the bottom of the retaining wall extends to the position below the soil filling surface of the next step, and an impermeable geomembrane is vertically paved on the soil filling side of the retaining wall close to the retaining wall. This structure carries out reconstruction to former soil property dyke slope formula back water slope, replaces slope formula structure with the step structure, has both solved the soil erosion and water loss problem on soil property slope, still can establish the basis for the comprehensive utilization of back water slope soil, accords with the theory of hydraulic engineering space function fusion and green development.

Description

Water and soil retaining structure of backwater slope of soil dike

Technical Field

The application relates to hydraulic engineering construction field especially relates to a water slope soil and water conservation structure of soil embankment.

Background

China has a large number of river bank projects, most of which are soil banks, and the water and soil conservation of the soil banks is always a difficult problem in the engineering world. The slope and the hydraulic slope drop are reduced by adopting a gentle slope mode generally, and the infiltration stability of a soil body is improved; or the surface soil loss is reduced by adopting a grass planting or hard slope protection mode. The gentle slope mode needs to occupy a large amount of land, and the gentle slope space is inconvenient to comprehensively utilize; the grass planting slope protection can not avoid the surface soil loss fundamentally, and a flow sliding channel formed under the action of rainfall runoff becomes a disease persistent symptom of the slope type backwater slope of the dike soil; the hard slope protection has poor ecological landscape function.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application aims to provide a water and soil conservation structure of a back slope of a soil dike, so as to solve the technical problem that the water and soil conservation of the back slope of the soil dike in the related technology cannot be realized.

According to a first aspect of the embodiments of the present application, there is provided a water and soil retaining structure for a landslide of a soil-bank, wherein the landslide of the soil-bank is of a step type, and comprises a retaining wall, the retaining wall is disposed on an empty side of a step, wherein the bottom of the retaining wall extends below a soil filling surface of a next step, and an impermeable geotextile is vertically laid on the soil filling side of the retaining wall in close proximity to the retaining wall.

Further, the thickness of the retaining wall is 0.4-0.5 times of the height of the step.

Further, the top of the retaining wall is covered with concrete or brick masonry or flat stone with the thickness of 0.1-0.2 m, and the top of the impermeable geotechnical cloth is pressed into the concrete or brick masonry or flat stone.

Furthermore, the bottom of the retaining wall extends to the soil filling surface of the next step by less than 0.1-0.2 m.

Further, the width of the impermeable geotextile along the vertical direction is 1.0-1.2 m or 1.5-1.8 m, wherein the soil body of the soil dike is 1.0-1.2 m when the soil body is cohesive soil, and the soil body of the soil dike is 1.5-1.8 m when the soil body is non-cohesive soil.

Furthermore, the top of the earth filling side of the retaining wall is a horizontal plane, and the earth filling surface is 0.1-0.2 m lower than the top of the retaining wall.

Furthermore, the retaining wall is built by common bricks or flat stones, has a rectangular section, has a height of 0.6-1.0 m and a thickness of 0.4-0.6 times of the height of the step.

The technical scheme provided by the embodiment of the application can have the following beneficial effects:

according to the embodiment, the top of the retaining wall is higher than the filling soil of the step, so that the soil in the step can be prevented from scattering, and long-term or short-term water storage can be realized; the anti-seepage geotextile can prevent soil in the steps from losing from gaps of the retaining wall, can also obviously prolong the seepage diameter of water in the soil in the steps, can prevent the soil from being damaged by seepage and ensure the safety of the embankment structure; can also delay water loss and is beneficial to the growth of plants or crops.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic diagram illustrating a landslide water and soil retaining structure of a soil-bank embankment, according to an exemplary embodiment.

Description of reference numerals:

1. a retaining wall; 2. anti-seepage geotextile; 3. a soil dike; 4. the backwater side.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if," as used herein, may be interpreted as "at \8230; \8230when" or "when 8230; \823030when" or "in response to a determination," depending on the context.

Fig. 1 is a schematic view illustrating a water and soil retaining structure of a backwater slope of a soil-bank 3 according to an exemplary embodiment, and as shown in fig. 1, the backwater slope of the soil-bank 3 is of a step type, and the structure may include a retaining wall 1, the retaining wall 1 being disposed on a side facing a void of a step, wherein a bottom of the retaining wall 1 protrudes below a surface of a filling of the next step, and a geotextile is vertically laid on the filling side of the retaining wall 1 against the retaining wall 1.

According to the embodiment, the top of the soil retaining wall 1 is higher than the filling soil of the steps, so that soil in the steps can be prevented from scattering, long-term or short-term water storage can be realized, the long-term water storage is suitable for wetland construction or planting of crops such as rice, and the short-term water storage is suitable for temporary storage of storm runoff; the anti-seepage geotextile can prevent soil in the steps from losing from gaps of the retaining wall 1, can also obviously prolong the seepage diameter of water in the soil in the steps, can prevent the soil from being damaged by seepage and ensure the safety of the embankment structure; can also delay water loss and is beneficial to the growth of plants or crops.

In the concrete implementation, the backwater slope of the soil embankment 3 is in a slope shape before reconstruction and is in a step shape after reconstruction, the height of a single step is 0.6-1.0 meter, and the width of the single step is more than 2.5 times of the height.

Specifically, the thickness of the retaining wall 1 is 0.4 to 0.6 times of the height of the step, so that the stability of the wall body is guaranteed and the construction is facilitated.

Specifically, the top of the retaining wall 1 is covered with concrete or brick masonry or flat stone with the thickness of 0.1-0.2 m to maintain the integrity of the wall, and the top of the impermeable geotextile 2 is pressed into the concrete or brick masonry or flat stone to improve the integrity and durability of the impermeable geotextile 2.

Specifically, the bottom of the retaining wall 1 extends to a depth of 0.1 to 0.2 m below the surface of the next step, so as to improve the structural stability of the retaining wall 1.

Specifically, the width of the impermeable geotextile along the vertical direction is 1.0-1.2 m or 1.5-1.8 m, wherein the width of the soil body of the soil-mass embankment 3 is 1.0-1.2 m when the soil body is cohesive soil, and the width of the soil body of the soil-mass embankment 3 is 1.5-1.8 m when the soil body is non-cohesive soil, so that the seepage diameter of water in the soil body is prolonged, the hydraulic slope drop is reduced, and the phenomena of water and soil loss such as piping, soil flowing and the like are avoided.

Specifically, the soil filling top of the soil filling side of the retaining wall 1 is a horizontal plane, and the soil filling surface is 0.1-0.2 m lower than the top of the retaining wall 1, so that the soil body can be prevented from being splashed out of the retaining wall 1 by rainwater, short-time retention of rainwater or long-time water storage for planting rice or wetland plants in heavy rain can be realized, and the soil body can be prevented from being spilled out of the platform due to various activities of people.

Specifically, the retaining wall 1 is built by common bricks or flat stones, has a rectangular cross section, has a height of 0.6-1.0 m, and has a thickness of 0.4-0.6 times of the height of the step.

The application provides a soil dyke 3's water slope soil and water conservation structure's theory of operation does:

the structure changes the back water slope of the soil dike 3 from a slope type to a step type, (1) by forming a horizontal plane on the back water side 4, the formation of slope water flow during rainfall can be avoided, thereby avoiding the water and soil loss along the slope; (2) through the design that the top elevation of the step retaining wall 1 is 0.1-0.2 m higher than the soil filling surface, a soil blocking ridge is formed, so that the soil body can be prevented from being splashed out of the retaining wall 1 by rainwater, and the soil body is prevented from being spilled out of the platform due to various activities of people; (3) through the design that the top elevation of the step retaining wall 1 is 0.1-0.2 m higher than the soil filling surface, a water retaining bank is formed, the soil filling platform can store rainwater exceeding the permeability of soil body during heavy rain, and the rainwater gradually permeates underground after rain, so that the purposes of reducing surface runoff and reducing water and soil loss are achieved; (4) the seepage-proofing geotextile is laid on the filling side of the step retaining wall 1, so that the soil can be prevented from losing from the gap of the retaining wall 1; (5) the seepage diameter of the water body in the platform can be prolonged by extending the seepage-proofing geotextile at the soil filling side of the step retaining wall 1 below the retaining wall 1, so that the water and soil permeation stability of the platform is realized, and the soil body is prevented from losing along with the permeation water.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof.

Claims (7)

1. The structure is characterized in that the back slope of the soil dike is of a step type and comprises a retaining wall, wherein the retaining wall is arranged on the side, facing the empty space, of the step, the bottom of the retaining wall extends to the position below the soil filling surface of the next step, and impermeable geotechnical cloth is vertically paved on the soil filling side of the retaining wall in a manner of clinging to the retaining wall.

2. The structure for retaining water and soil on a back slope of a soil embankment according to claim 1, wherein the thickness of the retaining wall is 0.4 to 0.5 times the height of the step.

3. The water and soil conservation structure for a back slope of a soil dike according to claim 1, wherein the top of the retaining wall is covered with concrete or brickwork or flat stone with a thickness of 0.1 to 0.2 m, and the top of the impermeable geotextile is pressed into the concrete or brickwork or flat stone.

4. The structure for retaining water and soil on a back slope of an earthen bank as claimed in claim 1, wherein a bottom of the retaining wall is protruded to a surface of a next step fill by 0.1 to 0.2 m or less.

5. The structure for retaining water and soil on the back of a soil dike according to claim 1, wherein the width of the impermeable geotextile along the vertical direction is 1.0 to 1.2 m or 1.5 to 1.8 m, wherein the width of the impermeable geotextile along the vertical direction is 1.0 to 1.2 m when the soil body of the soil dike is cohesive soil, and the width of the impermeable geotextile along the vertical direction is 1.5 to 1.8 m when the soil body of the soil dike is non-cohesive soil.

6. The structure for retaining water and soil in a backwater slope of an earthen bank as claimed in claim 1, wherein a top of a filling soil on a filling soil side of the retaining wall is a horizontal plane, and a surface of the filling soil is 0.1 to 0.2 m lower than the top of the retaining wall.

7. The water and soil retaining structure for a back water slope of a soil dike according to claim 1, wherein the retaining wall is built by ordinary bricks or flat stones, has a rectangular cross section, and has a height of 0.6 to 1.0 m and a thickness of 0.4 to 0.6 times of the step height.

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