A retaining wall for water conservancy projects

Abstract

The utility model belongs to the technical field of retaining wall, disclose a water conservancy building retaining wall, including retaining wall, backfill and concrete bottom plate, the retaining wall inside is equipped with the water outlet pipe, backfill inside is equipped with the drainage blind ditch, drainage blind ditch inside is equipped with the filter structure, drainage blind ditch is connected with the water outlet pipe through the connecting structure, set up drainage blind ditch and water permeable geotextile when backfilling backfill, reduce the water level of backfill layer upper end to drainage blind ditch lower end, the water of upper end is through drainage blind ditch and flows to water permeable net pipe, the silt that enters water permeable net pipe is reduced through the filtration of blind ditch gravel and geotextile, again due to the water of inside flow of water permeable net pipe can take away trace silt, thereby avoid the deposition of silt and cause the blockage, the water in water permeable net pipe is taken away through the water outlet pipe that is preburied in retaining wall, thereby reduce the hydrostatic pressure of backfill to retaining wall.

Description

Technical Field

[0001] This utility model belongs to the field of retaining wall technology, specifically relating to a retaining wall for hydraulic structures. Background Technology

[0002] Retaining walls are structures that support roadbed fill or hillside soil, preventing deformation and instability of the fill or soil. For riverside and reservoir embankments, retaining walls are installed on the water-facing side to prevent scouring and erosion of the roadbed, and are also an effective measure to reduce riverbed compression or reservoir capacity occupation. Existing gravel cushion drainage structures are easily clogged by fine-grained soil, preventing water from draining from the upper layer of fill soil. This results in excessive water pressure on the back of the retaining wall, causing instability. Utility Model Content

[0003] In view of the above-mentioned shortcomings in the existing technology, the present invention provides a retaining wall for hydraulic structures to solve the problems in the background technology.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A retaining wall for hydraulic structures, characterized in that: it includes a retaining wall, backfill soil and a concrete base slab, a water outlet pipe is provided on the inner side of the retaining wall, a drainage blind ditch is provided on the inner side of the backfill soil, a filter structure is provided on the inner side of the drainage blind ditch, and the drainage blind ditch is connected to the water outlet pipe through a connecting structure.

[0006] Preferably, the filter structure includes gravel, which is arranged in layers.

[0007] Preferably, a permeable geotextile is connected to the upper end of the drainage ditch, and the permeable geotextile serves as a filter.

[0008] Preferably, the connection structure includes a permeable mesh pipe, the drainage blind ditch is connected to the permeable mesh pipe, the permeable mesh pipe is inclined, and a connecting pipe is connected to one end of the permeable mesh pipe near the outlet pipe, the connecting pipe being connected to the outlet pipe.

[0009] Preferably, a reverse filter layer is connected to the inner side of the water outlet pipe.

[0010] Preferably, a drainage ditch is provided on the inner side of the concrete base slab, the drainage ditch is connected to a water outlet pipe, and a ditch cover is connected to the upper end of the drainage ditch.

[0011] Preferably, a protective net is connected to the upper end of the retaining wall.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] By installing drainage blind ditches and permeable geotextiles during backfilling, the water level at the top of the backfill layer is lowered to the bottom of the drainage blind ditches. The water at the top flows through the drainage blind ditches into the permeable network pipes. The filtration of gravel and geotextiles in the blind ditches reduces the amount of silt entering the permeable network pipes. Furthermore, due to the inclined installation of the permeable network pipes, the water flowing inside can carry away trace amounts of silt, thus preventing silt deposition and blockage. The water in the permeable network pipes is then carried away by the water outlet pipes pre-embedded in the retaining wall, thereby reducing the hydrostatic pressure of the backfill soil on the retaining wall. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a sectional view of the retaining wall from the side, provided by this utility model.

[0016] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0017] The reference numerals in the accompanying drawings include: 1. retaining wall; 2. backfill soil; 3. protective netting; 4. concrete base slab; 5. ditch cover; 6. drainage ditch; 7. water outlet pipe; 8. filter layer; 9. drainage blind ditch; 10. gravel; 11. permeable network pipe; 12. connecting pipe; 13. permeable geotextile. Detailed Implementation

[0018] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0020] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example 1:

[0023] like Figure 1-3 The present invention relates to a retaining wall for hydraulic structures. The retaining wall 1, backfill 2, and concrete base 4 are included. The backfill 2 is in contact with the back of the retaining wall 1. Both the backfill 2 and the retaining wall 1 are located on the upper part of the concrete base 4. When backfilling the backfill 2, drainage blind ditch 9 and permeable geotextile 13 are installed to avoid secondary excavation and backfilling. The inner side of the drainage blind ditch 9 is laid with crushed stone 10 from high to low. The diameter of the crushed stone 10 at the upper end is smaller than that at the lower end. The layered arrangement can reduce the amount of mud and sand falling into the drainage blind ditch 9. When the concrete is poured, a connecting pipe 12 and a water outlet pipe 7 are reserved, and a permeable mesh pipe 11 is installed at an angle. A drainage ditch 6 is opened on the inner side of the concrete base 4. A ditch cover 5 is connected to the upper end of the drainage ditch 6. The water outlet pipe 7 is fixedly connected to the drainage ditch 6. A filter layer 8 is set on the inner side of the water outlet pipe 7 to prevent impurities on the inner side of the drainage ditch 6 from entering the inner side of the water outlet pipe 7. A protective net 3 is fixedly connected to the upper end of the retaining wall 1.

[0024] Working principle:

[0025] When the retaining wall 1 experiences heavy rain, rainwater flows from the upper layer of the backfill soil 2 to the lower layer. The permeable geotextile 13 blocks the upper layer of soil, allowing the rainwater to enter the drainage ditch 9. The gravel 10 installed inside the drainage ditch 9 further filters the mud and sand. Then the rainwater flows to the permeable network pipe 11. The inclined permeable network pipe 11 will form a water flow due to the gravity of the water, thus washing away the trace amount of mud and sand that enters the permeable network pipe 11. Then, it enters the outlet pipe 7 inside the retaining wall 1 through the connecting pipe 12. Then the rainwater flows from the outlet pipe 7 to the drainage ditch 6. The filter layer 8 installed in the outlet pipe 7 can prevent impurities in the drainage ditch 6 from entering the inside of the outlet pipe 7, avoiding blockage of the outlet pipe 7.

[0026] The above are merely embodiments of this utility model. The circuits, electronic components, and modules involved are all prior art, fully achievable by those skilled in the art, and require no further explanation. The content protected by this application does not involve improvements to the software or methods. Commonly known structures and characteristics in the solution are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field to which this utility model pertains prior to the application date or priority date, are able to access all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in conjunction with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A retaining wall for hydraulic engineering, characterized in that: It includes a retaining wall (1), backfill soil (2) and a concrete base slab (4). The retaining wall (1) is provided with a water outlet pipe (7) on its inner side. The backfill soil (2) is provided with a drainage blind ditch (9) on its inner side. The drainage blind ditch (9) is provided with a filter structure on its inner side. The drainage blind ditch (9) is connected to the water outlet pipe (7) through a connecting structure.

2. A retaining wall for hydraulic structures as described in claim 1, characterized in that: The filter structure includes gravel (10), which is arranged in layers.

3. A retaining wall for hydraulic structures as described in claim 2, characterized in that: The upper end of the drainage blind ditch (9) is connected to a permeable geotextile (13), which serves as a filter.

4. A retaining wall for hydraulic structures as described in claim 3, characterized in that: The connection structure includes a permeable mesh pipe (11), the drainage blind ditch (9) is connected to the permeable mesh pipe (11), the permeable mesh pipe (11) is inclined, and a connecting pipe (12) is connected to one end of the permeable mesh pipe (11) near the outlet pipe (7), and the connecting pipe (12) is connected to the outlet pipe (7).

5. A retaining wall for hydraulic structures as described in claim 4, characterized in that: The inner side of the outlet pipe (7) is connected to a filter layer (8).

6. A retaining wall for hydraulic structures as described in claim 5, characterized in that: The concrete base slab (4) is provided with a drainage ditch (6) on the inner side. The drainage ditch (6) is connected to the water outlet pipe (7). The upper end of the drainage ditch (6) is connected to a ditch cover (5).

7. A retaining wall for hydraulic structures as described in claim 6, characterized in that: The upper end of the retaining wall is connected to a protective net (3).

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