A protection structure for a waterlogged embankment

Abstract

The utility model belongs to highway waterlogged section slope protection technical field relates to a kind of protection structure of waterlogged embankment, and the slope embankment of slope embankment is abutted to highway subgrade water side, concrete protection layer and waterproof slope are laid on the slope surface of slope embankment, and waterproof slope is located between concrete protection layer;Waterproof slope is from inside to outside in turn for slope surface macadam cushion layer, filter geotextile and mortar stone fixed layer, and drainage pipe is arranged in mortar stone fixed layer, and filter geotextile is connected the outer surface of mortar stone fixed layer by drainage pipe.This utility model is through multilayer protection system, effectively prevent soil loss, rainwater erosion and water damage influence, and structure overall stability is enhanced, so that the service life of concrete protection layer, mortar stone fixed layer and other each component part is extended;Concrete protection layer provides first solid defense for slope embankment, and waterproof slope further enhances the protection effect, from inside to outside layer by layer protection.

Description

Technical Field

[0001] This utility model relates to the field of slope protection technology for flooded road sections, and in particular to a protective structure for flooded embankments. Background Technology

[0002] In response to natural factors such as rivers, reservoirs, and ponds, special protection measures need to be implemented during the construction and repair of flooded road sections. The purpose is to prevent the road from being damaged by water erosion and thus affecting driving safety.

[0003] Currently, many flooded sections of highways typically use geotextiles and geogrids to protect the rock mass of embankment slopes. However, during use, in some flooded sections of highways, geogrids and geotextiles are prone to detach from the rock mass under the scouring of water flow, resulting in relatively poor protection of the embankment slope rock mass, causing serious damage to the embankment and posing a great potential traffic safety hazard. Utility Model Content

[0004] In order to solve the above-mentioned existing technical problems, eliminate the safety hazards of flooded road sections, and improve driving safety, this utility model provides a protective structure for flooded road embankments.

[0005] The technical solution of this utility model is achieved through the following scheme: a protective structure for a flooded embankment, comprising a highway, a concrete protective layer, a sloping embankment and a waterproof slope, wherein the sloping embankment abuts the water-facing side of the highway subgrade, the concrete protective layer and the waterproof slope are laid on the slope surface of the sloping embankment, and the waterproof slope is located between the concrete protective layers.

[0006] The waterproof slope protection consists of a slope crushed stone cushion layer, a reverse filter geotextile, and a masonry fixing layer from the inside out. Drainage pipes are arranged in an array within the masonry fixing layer. The reverse filter geotextile is connected to the outer surface of the masonry fixing layer through the drainage pipes. The slope crushed stone cushion layer is located between the sloping embankment and the reverse filter geotextile.

[0007] Through the above technical solutions and multi-layered protection system, soil erosion, rainwater erosion, and water damage are effectively prevented, and the overall structural stability is enhanced, extending the service life of each component, such as the concrete protective layer and the masonry fixing layer. The concrete protective layer provides the first solid line of defense for the sloping embankment, while the waterproof slope protection further enhances the protective effect, providing layer-by-layer protection from the inside out. The slope crushed stone cushion layer provides a flat and stable base for the geotextile filter, enabling the geotextile filter to better perform its filtering function. The geotextile filter prevents soil particles from entering the masonry fixing layer, ensuring the unobstructed flow of drainage pipes. The masonry fixing layer, with its significant weight and robust structure, tightly binds the various layers together to form a whole, improving the protective structure's ability to resist external forces, effectively preventing direct erosion of the sloping embankment surface by water flow, and reducing the damage to the embankment structure caused by water flow. Timely drainage through multiple drainage pipes can effectively prevent structural loosening, deformation, and cracking caused by increased water pressure, reducing the occurrence of water damage.

[0008] Preferably, the mortar-grouted stone fixing layer is located between the concrete protective layers. The mortar-grouted stone fixing layer includes a mortar-grouted block stone facing layer and a mortar-grouted rubble stone layer. The mortar-grouted rubble stone layer is located between the geotextile filter and the mortar-grouted block stone facing layer. Both the ends of the mortar-grouted block stone facing layer and the ends of the mortar-grouted rubble stone layer are provided with concrete protective layers.

[0009] Preferably, several of the drainage pipes penetrate the masonry block facing layer and the masonry rubble layer.

[0010] Preferably, the geotextile is covered with a concrete protective layer and a masonry fixing layer.

[0011] Preferably, the concrete protective layer includes a concrete toe and a concrete top, with the concrete top located at one end of the masonry fixing layer near the road shoulder and the concrete toe located at one end of the masonry fixing layer at the original ground line.

[0012] Preferably, the length of the slope crushed stone cushion layer is the same as the length of the masonry fixing layer, and the end of the slope crushed stone cushion layer closest to the original ground line abuts against the concrete toe.

[0013] In summary, this utility model has the following beneficial effects:

[0014] 1. This utility model effectively prevents soil erosion, rainwater erosion, and water damage through a multi-layered protection system, while enhancing the overall structural stability and extending the service life of each component, such as the concrete protective layer and the masonry fixing layer. The concrete protective layer provides the first solid line of defense for the sloping embankment, while the waterproof slope protection further enhances the protective effect, providing layer-by-layer protection from the inside out. The slope crushed stone cushion layer provides a flat and stable base for the geotextile filter, allowing it to better perform its filtering function. The geotextile filter prevents soil particles from entering the masonry fixing layer, ensuring unobstructed drainage. The masonry fixing layer, with its significant weight and robust structure, tightly binds the layers together to form a whole, improving the protective structure's resistance to external forces and effectively preventing direct erosion of the sloping embankment by water flow, thus reducing water damage to the embankment structure. Timely drainage through multiple drainage pipes effectively prevents structural loosening, deformation, and cracking caused by increased water pressure, reducing the occurrence of water damage.

[0015] 2. The mortar-grouted rubble facing layer directly resists the strong scouring and impact of water flow, providing the first solid line of defense for the embankment. The mortar-grouted rubble layer further enhances the density and integrity of the structure, effectively preventing water infiltration and soil loss, forming a multi-layered protection system and greatly improving the protection level. The drainage pipe can directly lead the water filtered by the geotextile to the mortar-grouted rubble fixing layer, avoiding the accumulation and detour of water flow in the layer and reducing the impact of water pressure on the structure.

[0016] 3. The end protection of the concrete toe and top can effectively prevent water from seeping in from the ends of the masonry fixing layer, thereby isolating the masonry fixing layer from the surrounding environment, forming a relatively closed protection system, and enhancing the stability and durability of the entire protective structure.

[0017] 4. The friction of the reverse filter geotextile increases the bonding force between the layers, enhances the stability of the structure, and ensures that the protective structure remains stable during long-term use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure from the right perspective of this utility model;

[0020] Figure 3 This is a top-view structural diagram of the present invention;

[0021] Figure 4 yes Figure 1 Enlarged schematic diagram of the structure at point A;

[0022] Figure 5 yes Figure 1 Enlarged schematic diagram of the structure at point B.

[0023] Explanation of reference numerals in the attached drawings: 1. Concrete toe protection; 2. Reverse filter geotextile; 3. Original ground line; 4. Drainage pipe; 5. Mortar-grouted rubble facing layer; 6. Mortar-grouted rubble layer; 7. Concrete top protection; 8. Slope crushed stone cushion layer; 9. Sloping embankment; 10. Earth shoulder. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] A protective structure for a flood-prone embankment, such as Figures 1-5 As shown, the structure includes a highway, a concrete protective layer, a sloping embankment 9, and a waterproof slope. The sloping embankment 9 abuts the water-facing side of the highway subgrade. The concrete protective layer and the waterproof slope are laid on the slope surface of the sloping embankment 9. The waterproof slope is located between the concrete protective layers. The surface of the waterproof slope forms an acute angle with the road surface. The waterproof slope, laid on the slope surface of the sloping embankment 9, works in conjunction with the concrete protective layers at both ends to provide all-round protection for the sloping embankment 9, effectively resisting damage to the sloping embankment 9 from water flow and waves, and protecting the safety of the highway subgrade. The concrete protective layer protects both ends of the waterproof slope to prevent water infiltration.

[0027] The waterproof slope protection consists of, from the inside out, a slope crushed stone cushion layer 8, a reverse filter geotextile 2, and a masonry fixing layer. Drainage pipes 4 are arrayed within the masonry fixing layer. The reverse filter geotextile 2 connects to the outer surface of the masonry fixing layer through the drainage pipes 4, allowing water to drain smoothly from the inside of the waterproof slope protection, preventing water accumulation from putting water pressure on the structure and reducing its stability. The slope crushed stone cushion layer 8 is located between the sloping embankment 9 and the reverse filter geotextile 2. The bottom of the waterproof slope protection extends below the original ground line 3 on the water-facing side of the highway. The concrete protective layer on the water-facing side of the highway extends below the original ground line 3, and the portion of the waterproof slope protection extending below the original ground line 3 is connected to it. This deep underground connection enhances the integrity of the protective structure and the foundation, improving the structure's resistance to water erosion. The reverse filter geotextile is laid on top of the slope crushed stone cushion layer 8 to prevent fine particles from being carried away by the water flow during drainage and to ensure the smooth flow of the drainage system.

[0028] The slope crushed stone cushion layer 8 serves as the base layer for waterproof slope protection, improving the permeability and stability of the sloping embankment 9 and preventing water accumulation on the slope. The thickness of the slope crushed stone cushion layer 8 is 0.15m to 0.4m.

[0029] The mortar-grouted masonry fixing layer is located between the concrete protective layers. The mortar-grouted masonry fixing layer includes a mortar-grouted block stone facing layer 5 and a mortar-grouted rubble stone layer 6. The mortar-grouted rubble stone layer 6 is located between the geotextile filter 2 and the mortar-grouted block stone facing layer 5. Both the ends of the mortar-grouted block stone facing layer 5 and the ends of the mortar-grouted rubble stone layer 6 are provided with concrete protective layers. Preferably, both the mortar-grouted block stone facing layer 5 and the mortar-grouted rubble stone layer 6 use M10 mortar. The thickness of the mortar-grouted rubble stone layer 6 is 0.25m to 0.45m, and the thickness of the mortar-grouted block stone facing layer 5 is 0.2m to 0.3m. The mortar-grouted rubble stone layer 6 is located on the inner side and is poured on the geotextile filter 2 to provide stable support. The mortar-grouted block stone facing layer 5 is poured on the mortar-grouted rubble stone layer 6.

[0030] like Figure 1 and Figure 5 As shown, the length of the slope crushed stone cushion layer 8 is consistent with the length of the masonry fixing layer. The end of the slope crushed stone cushion layer 8 closest to the original ground line 3 abuts against the concrete toe 1. The slope crushed stone cushion layer 8, the masonry block stone facing layer 5, and the masonry rubble stone layer 6 are all of the same length, and all three penetrate into the original ground line 3 and abut against each other with the concrete toe 1. Among them, the reverse filter geotextile 2 is laid between the slope crushed stone cushion layer 8 and the concrete toe 1. Therefore, the slope crushed stone cushion layer 8 abuts against the concrete toe 1 through the reverse filter geotextile 2. The layers support and restrain each other, effectively reducing the scouring of the slope embankment 9 by water flow and extending the service life of the slope embankment 9.

[0031] like Figure 4 As shown, several drainage pipes 4 penetrate the masonry block facing layer 5 and the masonry rubble layer 6, and connect to the geotextile filter 2, providing a direct and efficient drainage channel for water inside the slope. Water can be quickly discharged to the outer surface of the masonry fixing layer through the drainage pipes 4, avoiding the accumulation of water inside the structure and thus preventing the impact on the structural stability.

[0032] When the water level rises, the layered structure of the masonry fixing layer can effectively block the intrusion and scouring of water flow. The masonry rubble layer 6 evenly distributes the upper load and provides a stable support foundation for the entire masonry fixing layer. The masonry block facing layer 5 plays the main role in resisting scouring and blocking water, preventing water flow from directly scouring the internal structure. When the water level drops, the water in the structure can be quickly discharged through the drainage pipe 4 to avoid damage to the structure caused by the water pressure difference caused by water level changes.

[0033] like Figure 1As shown, the geotextile 2 is wrapped with a concrete protective layer and a masonry fixing layer. The concrete protective layer includes a concrete toe 1 and a concrete top 7. The concrete top 7 is located at the end of the masonry fixing layer near the road shoulder 10, and the concrete toe 1 is located at the end of the masonry fixing layer at the original ground line 3. The top of the concrete top 7 is level with the road shoulder 10, while the concrete toe 1 is embedded in the original ground line 3, increasing the contact area and embedment depth between the toe and the foundation, making the foundation of the entire protective structure more stable, and better able to resist the lateral pressure and sliding forces of the soil, preventing the structure from shifting or being damaged due to unstable foundation. The top of the concrete toe 1 is level with the original ground line 3. Both the concrete toe 1 and the concrete top 7 are made of C25 concrete. The concrete toe 1 is not less than 1.2m thick and not less than 1m wide.

[0034] The concrete toe and top protection 1 form a rigid barrier at both ends of the gap between the masonry block facing layer 5 and the masonry rubble layer 6. The concrete toe and top protection 7 can prevent rainwater from the road surface from flowing back into the masonry fixing layer. The concrete top protection 7 and the concrete toe and top protection 1 are separated from the sloping embankment 9 by the reverse filter geotextile 2, which enhances the connection and integrity of the entire protective structure with the surrounding soil and extends the service life of the structure.

[0035] If rainwater on the road shoulder 10 directly washes over the top of the masonry fixing layer during the drainage process, it can easily enter the interior of the structure. The concrete cap 7 can act as a barrier, guiding rainwater to drain along the acute-angle slope (the surface of the masonry facing layer 5), preventing rainwater from flowing back into the interior of the masonry fixing layer and protecting the internal structure from water damage.

[0036] like Figure 1 and Figure 5 As shown, the concrete foot protection 1 and the outer surface of the masonry block facing layer 5 form a smooth transition surface, while the concrete top protection 7, which is poured at the corner, also forms a smooth transition surface with the masonry block facing layer 5, facilitating water flow.

[0037] Working principle: The staff cleans the construction site, removes debris and obstacles, and ensures that the construction site is flat. According to the design requirements, the staff measures and lays out the location of the road flooding embankment protection structure, determines the boundary lines of the sloping embankment 9, the masonry block stone facing layer 5, the masonry rubble layer 6, the slope crushed stone cushion layer 8, the concrete toe protection 1, and the concrete top protection 7, and marks them.

[0038] The sloping embankment 9 was tidied up to provide a stable foundation for the entire protection system. Then, from the inside out, the slope crushed stone cushion layer 8, the reverse filter geotextile 2, the mortar-grouted rubble layer 6, and the mortar-grouted block stone facing layer 5 were laid in sequence to play a protective role.

[0039] The slope crushed stone cushion layer 8 can quickly drain the water accumulated in the slope. The mortar-grouted rubble layer 6 withstands the impact of water flow, protects the lower crushed stone cushion layer from being eroded and damaged by water flow, and provides a stable support foundation for the upper mortar-grouted rubble facing layer 5. When the drainage pipe 4 drains the water accumulated in the slope, the reverse filter geotextile 2 ensures the smooth flow of the drainage system while maintaining the structural stability of the slope protection and preventing structural loosening and damage caused by the loss of fine particles.

[0040] Because of the tight sealing of the stones in the 5th layer of masonry facing, the penetration and erosion of the slope by external water flow are further reduced, thus enhancing the protective effect of the slope.

[0041] The cast-in-place concrete toe protection 1 and concrete top protection 7 provide solid support for the slope protection, further enhancing the stability and sealing of the entire protective structure and ensuring the safety and stability of the flooded highway embankment under long-term water flow.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A protective structure for a flood-prone embankment, characterized in that: It includes a highway, a concrete protective layer, a sloping embankment (9) and a waterproof slope protection. The sloping embankment (9) abuts the water-facing side of the highway subgrade. The concrete protective layer and the waterproof slope protection are laid on the slope surface of the sloping embankment (9). The waterproof slope protection is located between the concrete protective layers. The waterproof slope protection consists of a slope crushed stone cushion layer (8), a reverse filter geotextile (2), and a masonry fixing layer from the inside out. Drainage pipes (4) are arranged in an array inside the masonry fixing layer. The reverse filter geotextile (2) is connected to the outer surface of the masonry fixing layer through the drainage pipes (4). The slope crushed stone cushion layer (8) is located between the sloping embankment (9) and the reverse filter geotextile (2).

2. The protective structure for a flooded embankment according to claim 1, characterized in that: The mortar-grouted stone fixing layer is located between the concrete protective layers. The mortar-grouted stone fixing layer includes a mortar-grouted block stone facing layer (5) and a mortar-grouted rubble stone layer (6). The mortar-grouted rubble stone layer (6) is located between the geotextile filter (2) and the mortar-grouted block stone facing layer (5). Both the ends of the mortar-grouted block stone facing layer (5) and the ends of the mortar-grouted rubble stone layer (6) are provided with concrete protective layers.

3. The protective structure for a flooded embankment according to claim 2, characterized in that: Several of the drainage pipes (4) penetrate the masonry block facing layer (5) and the masonry rubble layer (6).

4. The protective structure for a flooded embankment according to claim 1, characterized in that: The reverse filter geotextile (2) is covered with a concrete protective layer and a masonry fixing layer.

5. The protective structure for a flood-prone embankment according to claim 4, characterized in that: The concrete protective layer includes a concrete footing (1) and a concrete top (7). The concrete top (7) is located at one end of the masonry fixing layer near the road shoulder (10), and the concrete footing (1) is located at one end of the masonry fixing layer at the original ground line (3).

6. The protective structure for a flooded embankment according to claim 5, characterized in that: The length of the slope crushed stone cushion layer (8) is the same as the length of the masonry fixing layer, and the end of the slope crushed stone cushion layer (8) close to the original ground line (3) abuts against the concrete toe (1).

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